Port #3505 from CItra

externals: Update dynarmic to f7d11baa1

.travis.yml

@@ -42,3 +42,7 @@ notifications:
   webhooks:
     urls:
       - https://api.yuzu-emu.org/code/travis/notify
+
+cache:
+  directories:
+    - $HOME/.ccache

.travis/linux/build.sh

@@ -1,3 +1,3 @@
 #!/bin/bash -ex
 
-docker run -v $(pwd):/yuzu ubuntu:18.04 /bin/bash /yuzu/.travis/linux/docker.sh
+docker run -e CCACHE_DIR=/ccache -v $HOME/.ccache:/ccache -v $(pwd):/yuzu ubuntu:18.04 /bin/bash /yuzu/.travis/linux/docker.sh

.travis/linux/docker.sh

@@ -1,16 +1,18 @@
 #!/bin/bash -ex
 
 apt-get update
-apt-get install -y build-essential git libqt5opengl5-dev libsdl2-dev libssl-dev python qtbase5-dev wget
-
-# Get a recent version of CMake
-wget https://cmake.org/files/v3.10/cmake-3.10.1-Linux-x86_64.sh
-sh cmake-3.10.1-Linux-x86_64.sh --exclude-subdir --prefix=/ --skip-license
+apt-get install --no-install-recommends -y build-essential git libqt5opengl5-dev libsdl2-dev libssl-dev python qtbase5-dev wget cmake ninja-build ccache
 
 cd /yuzu
 
+export PATH=/usr/lib/ccache:$PATH
+ln -sf /usr/bin/ccache /usr/lib/ccache/cc
+ln -sf /usr/bin/ccache /usr/lib/ccache/c++
 mkdir build && cd build
-cmake .. -DYUZU_BUILD_UNICORN=ON -DCMAKE_BUILD_TYPE=Release
-make -j4
+ccache --show-stats > ccache_before
+cmake .. -DYUZU_BUILD_UNICORN=ON -DCMAKE_BUILD_TYPE=Release -G Ninja
+ninja
+ccache --show-stats > ccache_after
+diff -U100 ccache_before ccache_after || true
 
 ctest -VV -C Release

.travis/macos/build.sh

@@ -7,8 +7,12 @@ export Qt5_DIR=$(brew --prefix)/opt/qt5
 export UNICORNDIR=$(pwd)/externals/unicorn
 
 mkdir build && cd build
+export PATH=/usr/local/opt/ccache/libexec:$PATH
+ccache --show-stats > ccache_before
 cmake --version
 cmake .. -DYUZU_BUILD_UNICORN=ON -DCMAKE_BUILD_TYPE=Release
 make -j4
+ccache --show-stats > ccache_after
+diff -U100 ccache_before ccache_after || true
 
 ctest -VV -C Release

.travis/macos/deps.sh

@@ -1,5 +1,5 @@
 #!/bin/sh -ex
 
 brew update
-brew install dylibbundler p7zip qt5 sdl2
+brew install dylibbundler p7zip qt5 sdl2 ccache
 brew outdated cmake || brew upgrade cmake

CMakeModules/CopyYuzuQt5Deps.cmake

@@ -3,7 +3,9 @@ function(copy_yuzu_Qt5_deps target_dir)
     set(DLL_DEST "${CMAKE_BINARY_DIR}/bin/$<CONFIG>/")
     set(Qt5_DLL_DIR "${Qt5_DIR}/../../../bin")
     set(Qt5_PLATFORMS_DIR "${Qt5_DIR}/../../../plugins/platforms/")
+    set(Qt5_STYLES_DIR "${Qt5_DIR}/../../../plugins/styles/")
     set(PLATFORMS ${DLL_DEST}platforms/)
+    set(STYLES ${DLL_DEST}styles/)
     windows_copy_files(${target_dir} ${Qt5_DLL_DIR} ${DLL_DEST}
         icudt*.dll
         icuin*.dll
@@ -14,4 +16,5 @@ function(copy_yuzu_Qt5_deps target_dir)
         Qt5Widgets$<$<CONFIG:Debug>:d>.*
     )
     windows_copy_files(yuzu ${Qt5_PLATFORMS_DIR} ${PLATFORMS} qwindows$<$<CONFIG:Debug>:d>.*)
+    windows_copy_files(yuzu ${Qt5_STYLES_DIR} ${STYLES} qwindowsvistastyle$<$<CONFIG:Debug>:d>.*)
 endfunction(copy_yuzu_Qt5_deps)

appveyor.yml

@@ -116,6 +116,7 @@ after_build:
 
           mkdir $RELEASE_DIST
           mkdir $RELEASE_DIST/platforms
+          mkdir $RELEASE_DIST/styles
 
           # copy the compiled binaries and other release files to the release folder
           Get-ChildItem "$CMAKE_BINARY_DIR" -Filter "yuzu*.exe" | Copy-Item -destination $RELEASE_DIST
@@ -136,6 +137,9 @@ after_build:
           # copy the qt windows plugin dll to platforms
           Copy-Item -path "C:/msys64/mingw64/share/qt5/plugins/platforms/qwindows.dll" -force -destination "$RELEASE_DIST/platforms"
 
+          # copy the qt windows vista style dll to platforms
+          Copy-Item -path "C:/msys64/mingw64/share/qt5/plugins/styles/qwindowsvistastyle.dll" -force -destination "$RELEASE_DIST/styles"
+
           7z a -tzip $MINGW_BUILD_ZIP $RELEASE_DIST\*
           7z a $MINGW_SEVENZIP $RELEASE_DIST
         }

src/common/assert.h

@@ -30,15 +30,14 @@ __declspec(noinline, noreturn)
 #define ASSERT(_a_)                                                                                \
     do                                                                                             \
         if (!(_a_)) {                                                                              \
-            assert_noinline_call([] { NGLOG_CRITICAL(Debug, "Assertion Failed!"); });              \
+            assert_noinline_call([] { LOG_CRITICAL(Debug, "Assertion Failed!"); });                \
         }                                                                                          \
     while (0)
 
 #define ASSERT_MSG(_a_, ...)                                                                       \
     do                                                                                             \
         if (!(_a_)) {                                                                              \
-            assert_noinline_call(                                                                  \
-                [&] { NGLOG_CRITICAL(Debug, "Assertion Failed!\n" __VA_ARGS__); });                \
+            assert_noinline_call([&] { LOG_CRITICAL(Debug, "Assertion Failed!\n" __VA_ARGS__); }); \
         }                                                                                          \
     while (0)
 

src/common/common_paths.h

@@ -32,12 +32,15 @@
 #define SDMC_DIR "sdmc"
 #define NAND_DIR "nand"
 #define SYSDATA_DIR "sysdata"
+#define LOG_DIR "log"
 
 // Filenames
 // Files in the directory returned by GetUserPath(D_CONFIG_IDX)
 #define EMU_CONFIG "emu.ini"
 #define DEBUGGER_CONFIG "debugger.ini"
 #define LOGGER_CONFIG "logger.ini"
+// Files in the directory returned by GetUserPath(D_LOGS_IDX)
+#define LOG_FILE "yuzu_log.txt"
 
 // Sys files
 #define SHARED_FONT "shared_font.bin"

src/common/file_util.cpp

@@ -2,6 +2,7 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <sstream>
 #include "common/assert.h"
 #include "common/common_funcs.h"
 #include "common/common_paths.h"
@@ -118,7 +119,7 @@ bool IsDirectory(const std::string& filename) {
 #endif
 
     if (result < 0) {
-        NGLOG_DEBUG(Common_Filesystem, "stat failed on {}: {}", filename, GetLastErrorMsg());
+        LOG_DEBUG(Common_Filesystem, "stat failed on {}: {}", filename, GetLastErrorMsg());
         return false;
     }
 
@@ -128,29 +129,29 @@ bool IsDirectory(const std::string& filename) {
 // Deletes a given filename, return true on success
 // Doesn't supports deleting a directory
 bool Delete(const std::string& filename) {
-    NGLOG_TRACE(Common_Filesystem, "file {}", filename);
+    LOG_TRACE(Common_Filesystem, "file {}", filename);
 
     // Return true because we care about the file no
     // being there, not the actual delete.
     if (!Exists(filename)) {
-        NGLOG_DEBUG(Common_Filesystem, "{} does not exist", filename);
+        LOG_DEBUG(Common_Filesystem, "{} does not exist", filename);
         return true;
     }
 
     // We can't delete a directory
     if (IsDirectory(filename)) {
-        NGLOG_ERROR(Common_Filesystem, "Failed: {} is a directory", filename);
+        LOG_ERROR(Common_Filesystem, "Failed: {} is a directory", filename);
         return false;
     }
 
 #ifdef _WIN32
     if (!DeleteFileW(Common::UTF8ToUTF16W(filename).c_str())) {
-        NGLOG_ERROR(Common_Filesystem, "DeleteFile failed on {}: {}", filename, GetLastErrorMsg());
+        LOG_ERROR(Common_Filesystem, "DeleteFile failed on {}: {}", filename, GetLastErrorMsg());
         return false;
     }
 #else
     if (unlink(filename.c_str()) == -1) {
-        NGLOG_ERROR(Common_Filesystem, "unlink failed on {}: {}", filename, GetLastErrorMsg());
+        LOG_ERROR(Common_Filesystem, "unlink failed on {}: {}", filename, GetLastErrorMsg());
         return false;
     }
 #endif
@@ -160,16 +161,16 @@ bool Delete(const std::string& filename) {
 
 // Returns true if successful, or path already exists.
 bool CreateDir(const std::string& path) {
-    NGLOG_TRACE(Common_Filesystem, "directory {}", path);
+    LOG_TRACE(Common_Filesystem, "directory {}", path);
 #ifdef _WIN32
     if (::CreateDirectoryW(Common::UTF8ToUTF16W(path).c_str(), nullptr))
         return true;
     DWORD error = GetLastError();
     if (error == ERROR_ALREADY_EXISTS) {
-        NGLOG_DEBUG(Common_Filesystem, "CreateDirectory failed on {}: already exists", path);
+        LOG_DEBUG(Common_Filesystem, "CreateDirectory failed on {}: already exists", path);
         return true;
     }
-    NGLOG_ERROR(Common_Filesystem, "CreateDirectory failed on {}: {}", path, error);
+    LOG_ERROR(Common_Filesystem, "CreateDirectory failed on {}: {}", path, error);
     return false;
 #else
     if (mkdir(path.c_str(), 0755) == 0)
@@ -178,11 +179,11 @@ bool CreateDir(const std::string& path) {
     int err = errno;
 
     if (err == EEXIST) {
-        NGLOG_DEBUG(Common_Filesystem, "mkdir failed on {}: already exists", path);
+        LOG_DEBUG(Common_Filesystem, "mkdir failed on {}: already exists", path);
         return true;
     }
 
-    NGLOG_ERROR(Common_Filesystem, "mkdir failed on {}: {}", path, strerror(err));
+    LOG_ERROR(Common_Filesystem, "mkdir failed on {}: {}", path, strerror(err));
     return false;
 #endif
 }
@@ -190,10 +191,10 @@ bool CreateDir(const std::string& path) {
 // Creates the full path of fullPath returns true on success
 bool CreateFullPath(const std::string& fullPath) {
     int panicCounter = 100;
-    NGLOG_TRACE(Common_Filesystem, "path {}", fullPath);
+    LOG_TRACE(Common_Filesystem, "path {}", fullPath);
 
     if (FileUtil::Exists(fullPath)) {
-        NGLOG_DEBUG(Common_Filesystem, "path exists {}", fullPath);
+        LOG_DEBUG(Common_Filesystem, "path exists {}", fullPath);
         return true;
     }
 
@@ -209,14 +210,14 @@ bool CreateFullPath(const std::string& fullPath) {
         // Include the '/' so the first call is CreateDir("/") rather than CreateDir("")
         std::string const subPath(fullPath.substr(0, position + 1));
         if (!FileUtil::IsDirectory(subPath) && !FileUtil::CreateDir(subPath)) {
-            NGLOG_ERROR(Common, "CreateFullPath: directory creation failed");
+            LOG_ERROR(Common, "CreateFullPath: directory creation failed");
             return false;
         }
 
         // A safety check
         panicCounter--;
         if (panicCounter <= 0) {
-            NGLOG_ERROR(Common, "CreateFullPath: directory structure is too deep");
+            LOG_ERROR(Common, "CreateFullPath: directory structure is too deep");
             return false;
         }
         position++;
@@ -225,11 +226,11 @@ bool CreateFullPath(const std::string& fullPath) {
 
 // Deletes a directory filename, returns true on success
 bool DeleteDir(const std::string& filename) {
-    NGLOG_TRACE(Common_Filesystem, "directory {}", filename);
+    LOG_TRACE(Common_Filesystem, "directory {}", filename);
 
     // check if a directory
     if (!FileUtil::IsDirectory(filename)) {
-        NGLOG_ERROR(Common_Filesystem, "Not a directory {}", filename);
+        LOG_ERROR(Common_Filesystem, "Not a directory {}", filename);
         return false;
     }
 
@@ -240,14 +241,14 @@ bool DeleteDir(const std::string& filename) {
     if (rmdir(filename.c_str()) == 0)
         return true;
 #endif
-    NGLOG_ERROR(Common_Filesystem, "failed {}: {}", filename, GetLastErrorMsg());
+    LOG_ERROR(Common_Filesystem, "failed {}: {}", filename, GetLastErrorMsg());
 
     return false;
 }
 
 // renames file srcFilename to destFilename, returns true on success
 bool Rename(const std::string& srcFilename, const std::string& destFilename) {
-    NGLOG_TRACE(Common_Filesystem, "{} --> {}", srcFilename, destFilename);
+    LOG_TRACE(Common_Filesystem, "{} --> {}", srcFilename, destFilename);
 #ifdef _WIN32
     if (_wrename(Common::UTF8ToUTF16W(srcFilename).c_str(),
                  Common::UTF8ToUTF16W(destFilename).c_str()) == 0)
@@ -256,21 +257,21 @@ bool Rename(const std::string& srcFilename, const std::string& destFilename) {
     if (rename(srcFilename.c_str(), destFilename.c_str()) == 0)
         return true;
 #endif
-    NGLOG_ERROR(Common_Filesystem, "failed {} --> {}: {}", srcFilename, destFilename,
-                GetLastErrorMsg());
+    LOG_ERROR(Common_Filesystem, "failed {} --> {}: {}", srcFilename, destFilename,
+              GetLastErrorMsg());
     return false;
 }
 
 // copies file srcFilename to destFilename, returns true on success
 bool Copy(const std::string& srcFilename, const std::string& destFilename) {
-    NGLOG_TRACE(Common_Filesystem, "{} --> {}", srcFilename, destFilename);
+    LOG_TRACE(Common_Filesystem, "{} --> {}", srcFilename, destFilename);
 #ifdef _WIN32
     if (CopyFileW(Common::UTF8ToUTF16W(srcFilename).c_str(),
                   Common::UTF8ToUTF16W(destFilename).c_str(), FALSE))
         return true;
 
-    NGLOG_ERROR(Common_Filesystem, "failed {} --> {}: {}", srcFilename, destFilename,
-                GetLastErrorMsg());
+    LOG_ERROR(Common_Filesystem, "failed {} --> {}: {}", srcFilename, destFilename,
+              GetLastErrorMsg());
     return false;
 #else
 
@@ -282,8 +283,8 @@ bool Copy(const std::string& srcFilename, const std::string& destFilename) {
     // Open input file
     FILE* input = fopen(srcFilename.c_str(), "rb");
     if (!input) {
-        NGLOG_ERROR(Common_Filesystem, "opening input failed {} --> {}: {}", srcFilename,
-                    destFilename, GetLastErrorMsg());
+        LOG_ERROR(Common_Filesystem, "opening input failed {} --> {}: {}", srcFilename,
+                  destFilename, GetLastErrorMsg());
         return false;
     }
 
@@ -291,8 +292,8 @@ bool Copy(const std::string& srcFilename, const std::string& destFilename) {
     FILE* output = fopen(destFilename.c_str(), "wb");
     if (!output) {
         fclose(input);
-        NGLOG_ERROR(Common_Filesystem, "opening output failed {} --> {}: {}", srcFilename,
-                    destFilename, GetLastErrorMsg());
+        LOG_ERROR(Common_Filesystem, "opening output failed {} --> {}: {}", srcFilename,
+                  destFilename, GetLastErrorMsg());
         return false;
     }
 
@@ -302,8 +303,8 @@ bool Copy(const std::string& srcFilename, const std::string& destFilename) {
         size_t rnum = fread(buffer, sizeof(char), BSIZE, input);
         if (rnum != BSIZE) {
             if (ferror(input) != 0) {
-                NGLOG_ERROR(Common_Filesystem, "failed reading from source, {} --> {}: {}",
-                            srcFilename, destFilename, GetLastErrorMsg());
+                LOG_ERROR(Common_Filesystem, "failed reading from source, {} --> {}: {}",
+                          srcFilename, destFilename, GetLastErrorMsg());
                 goto bail;
             }
         }
@@ -311,8 +312,8 @@ bool Copy(const std::string& srcFilename, const std::string& destFilename) {
         // write output
         size_t wnum = fwrite(buffer, sizeof(char), rnum, output);
         if (wnum != rnum) {
-            NGLOG_ERROR(Common_Filesystem, "failed writing to output, {} --> {}: {}", srcFilename,
-                        destFilename, GetLastErrorMsg());
+            LOG_ERROR(Common_Filesystem, "failed writing to output, {} --> {}: {}", srcFilename,
+                      destFilename, GetLastErrorMsg());
             goto bail;
         }
     }
@@ -332,12 +333,12 @@ bail:
 // Returns the size of filename (64bit)
 u64 GetSize(const std::string& filename) {
     if (!Exists(filename)) {
-        NGLOG_ERROR(Common_Filesystem, "failed {}: No such file", filename);
+        LOG_ERROR(Common_Filesystem, "failed {}: No such file", filename);
         return 0;
     }
 
     if (IsDirectory(filename)) {
-        NGLOG_ERROR(Common_Filesystem, "failed {}: is a directory", filename);
+        LOG_ERROR(Common_Filesystem, "failed {}: is a directory", filename);
         return 0;
     }
 
@@ -348,11 +349,11 @@ u64 GetSize(const std::string& filename) {
     if (stat(filename.c_str(), &buf) == 0)
 #endif
     {
-        NGLOG_TRACE(Common_Filesystem, "{}: {}", filename, buf.st_size);
+        LOG_TRACE(Common_Filesystem, "{}: {}", filename, buf.st_size);
         return buf.st_size;
     }
 
-    NGLOG_ERROR(Common_Filesystem, "Stat failed {}: {}", filename, GetLastErrorMsg());
+    LOG_ERROR(Common_Filesystem, "Stat failed {}: {}", filename, GetLastErrorMsg());
     return 0;
 }
 
@@ -360,7 +361,7 @@ u64 GetSize(const std::string& filename) {
 u64 GetSize(const int fd) {
     struct stat buf;
     if (fstat(fd, &buf) != 0) {
-        NGLOG_ERROR(Common_Filesystem, "GetSize: stat failed {}: {}", fd, GetLastErrorMsg());
+        LOG_ERROR(Common_Filesystem, "GetSize: stat failed {}: {}", fd, GetLastErrorMsg());
         return 0;
     }
     return buf.st_size;
@@ -371,14 +372,12 @@ u64 GetSize(FILE* f) {
     // can't use off_t here because it can be 32-bit
     u64 pos = ftello(f);
     if (fseeko(f, 0, SEEK_END) != 0) {
-        NGLOG_ERROR(Common_Filesystem, "GetSize: seek failed {}: {}", fmt::ptr(f),
-                    GetLastErrorMsg());
+        LOG_ERROR(Common_Filesystem, "GetSize: seek failed {}: {}", fmt::ptr(f), GetLastErrorMsg());
         return 0;
     }
     u64 size = ftello(f);
     if ((size != pos) && (fseeko(f, pos, SEEK_SET) != 0)) {
-        NGLOG_ERROR(Common_Filesystem, "GetSize: seek failed {}: {}", fmt::ptr(f),
-                    GetLastErrorMsg());
+        LOG_ERROR(Common_Filesystem, "GetSize: seek failed {}: {}", fmt::ptr(f), GetLastErrorMsg());
         return 0;
     }
     return size;
@@ -386,10 +385,10 @@ u64 GetSize(FILE* f) {
 
 // creates an empty file filename, returns true on success
 bool CreateEmptyFile(const std::string& filename) {
-    NGLOG_TRACE(Common_Filesystem, "{}", filename);
+    LOG_TRACE(Common_Filesystem, "{}", filename);
 
-    if (!FileUtil::IOFile(filename, "wb")) {
-        NGLOG_ERROR(Common_Filesystem, "failed {}: {}", filename, GetLastErrorMsg());
+    if (!FileUtil::IOFile(filename, "wb").IsOpen()) {
+        LOG_ERROR(Common_Filesystem, "failed {}: {}", filename, GetLastErrorMsg());
         return false;
     }
 
@@ -398,7 +397,7 @@ bool CreateEmptyFile(const std::string& filename) {
 
 bool ForeachDirectoryEntry(unsigned* num_entries_out, const std::string& directory,
                            DirectoryEntryCallable callback) {
-    NGLOG_TRACE(Common_Filesystem, "directory {}", directory);
+    LOG_TRACE(Common_Filesystem, "directory {}", directory);
 
     // How many files + directories we found
     unsigned found_entries = 0;
@@ -556,7 +555,7 @@ std::string GetCurrentDir() {
     char* dir;
     if (!(dir = getcwd(nullptr, 0))) {
 #endif
-        NGLOG_ERROR(Common_Filesystem, "GetCurrentDirectory failed: {}", GetLastErrorMsg());
+        LOG_ERROR(Common_Filesystem, "GetCurrentDirectory failed: {}", GetLastErrorMsg());
         return nullptr;
     }
 #ifdef _WIN32
@@ -676,11 +675,11 @@ std::string GetSysDirectory() {
 #endif
     sysDir += DIR_SEP;
 
-    NGLOG_DEBUG(Common_Filesystem, "Setting to {}:", sysDir);
+    LOG_DEBUG(Common_Filesystem, "Setting to {}:", sysDir);
     return sysDir;
 }
 
-// Returns a string with a Citra data dir or file in the user's home
+// Returns a string with a yuzu data dir or file in the user's home
 // directory. To be used in "multi-user" mode (that is, installed).
 const std::string& GetUserPath(const unsigned int DirIDX, const std::string& newPath) {
     static std::string paths[NUM_PATH_INDICES];
@@ -692,7 +691,7 @@ const std::string& GetUserPath(const unsigned int DirIDX, const std::string& new
         if (!FileUtil::IsDirectory(paths[D_USER_IDX])) {
             paths[D_USER_IDX] = AppDataRoamingDirectory() + DIR_SEP EMU_DATA_DIR DIR_SEP;
         } else {
-            NGLOG_INFO(Common_Filesystem, "Using the local user directory");
+            LOG_INFO(Common_Filesystem, "Using the local user directory");
         }
 
         paths[D_CONFIG_IDX] = paths[D_USER_IDX] + CONFIG_DIR DIR_SEP;
@@ -715,11 +714,13 @@ const std::string& GetUserPath(const unsigned int DirIDX, const std::string& new
         paths[D_SDMC_IDX] = paths[D_USER_IDX] + SDMC_DIR DIR_SEP;
         paths[D_NAND_IDX] = paths[D_USER_IDX] + NAND_DIR DIR_SEP;
         paths[D_SYSDATA_IDX] = paths[D_USER_IDX] + SYSDATA_DIR DIR_SEP;
+        // TODO: Put the logs in a better location for each OS
+        paths[D_LOGS_IDX] = paths[D_USER_IDX] + LOG_DIR DIR_SEP;
     }
 
     if (!newPath.empty()) {
         if (!FileUtil::IsDirectory(newPath)) {
-            NGLOG_ERROR(Common_Filesystem, "Invalid path specified {}", newPath);
+            LOG_ERROR(Common_Filesystem, "Invalid path specified {}", newPath);
             return paths[DirIDX];
         } else {
             paths[DirIDX] = newPath;
@@ -750,7 +751,7 @@ size_t WriteStringToFile(bool text_file, const std::string& str, const char* fil
 size_t ReadFileToString(bool text_file, const char* filename, std::string& str) {
     IOFile file(filename, text_file ? "r" : "rb");
 
-    if (!file)
+    if (!file.IsOpen())
         return false;
 
     str.resize(static_cast<u32>(file.GetSize()));
@@ -799,10 +800,61 @@ void SplitFilename83(const std::string& filename, std::array<char, 9>& short_nam
     }
 }
 
+std::vector<std::string> SplitPathComponents(const std::string& filename) {
+    auto copy(filename);
+    std::replace(copy.begin(), copy.end(), '\\', '/');
+    std::vector<std::string> out;
+
+    std::stringstream stream(filename);
+    std::string item;
+    while (std::getline(stream, item, '/'))
+        out.push_back(std::move(item));
+
+    return out;
+}
+
+std::string GetParentPath(const std::string& path) {
+    auto out = path;
+    const auto name_bck_index = out.find_last_of('\\');
+    const auto name_fwd_index = out.find_last_of('/');
+    size_t name_index;
+    if (name_bck_index == std::string::npos || name_fwd_index == std::string::npos)
+        name_index = std::min<size_t>(name_bck_index, name_fwd_index);
+    else
+        name_index = std::max<size_t>(name_bck_index, name_fwd_index);
+
+    return out.erase(name_index);
+}
+
+std::string GetFilename(std::string path) {
+    std::replace(path.begin(), path.end(), '\\', '/');
+    auto name_index = path.find_last_of('/');
+    if (name_index == std::string::npos)
+        return "";
+    return path.substr(name_index + 1);
+}
+
+std::string GetExtensionFromFilename(const std::string& name) {
+    size_t index = name.find_last_of('.');
+    if (index == std::string::npos)
+        return "";
+
+    return name.substr(index + 1);
+}
+
+std::string RemoveTrailingSlash(const std::string& path) {
+    if (path.empty())
+        return path;
+    if (path.back() == '\\' || path.back() == '/')
+        return path.substr(0, path.size() - 1);
+
+    return path;
+}
+
 IOFile::IOFile() {}
 
-IOFile::IOFile(const std::string& filename, const char openmode[]) {
-    Open(filename, openmode);
+IOFile::IOFile(const std::string& filename, const char openmode[], int flags) {
+    Open(filename, openmode, flags);
 }
 
 IOFile::~IOFile() {
@@ -820,28 +872,31 @@ IOFile& IOFile::operator=(IOFile&& other) noexcept {
 
 void IOFile::Swap(IOFile& other) noexcept {
     std::swap(m_file, other.m_file);
-    std::swap(m_good, other.m_good);
 }
 
-bool IOFile::Open(const std::string& filename, const char openmode[]) {
+bool IOFile::Open(const std::string& filename, const char openmode[], int flags) {
     Close();
 #ifdef _WIN32
-    _wfopen_s(&m_file, Common::UTF8ToUTF16W(filename).c_str(),
-              Common::UTF8ToUTF16W(openmode).c_str());
+    if (flags != 0) {
+        m_file = _wfsopen(Common::UTF8ToUTF16W(filename).c_str(),
+                          Common::UTF8ToUTF16W(openmode).c_str(), flags);
+    } else {
+        _wfopen_s(&m_file, Common::UTF8ToUTF16W(filename).c_str(),
+                  Common::UTF8ToUTF16W(openmode).c_str());
+    }
 #else
     m_file = fopen(filename.c_str(), openmode);
 #endif
 
-    m_good = IsOpen();
-    return m_good;
+    return IsOpen();
 }
 
 bool IOFile::Close() {
     if (!IsOpen() || 0 != std::fclose(m_file))
-        m_good = false;
+        return false;
 
     m_file = nullptr;
-    return m_good;
+    return true;
 }
 
 u64 IOFile::GetSize() const {
@@ -851,11 +906,8 @@ u64 IOFile::GetSize() const {
     return 0;
 }
 
-bool IOFile::Seek(s64 off, int origin) {
-    if (!IsOpen() || 0 != fseeko(m_file, off, origin))
-        m_good = false;
-
-    return m_good;
+bool IOFile::Seek(s64 off, int origin) const {
+    return IsOpen() && 0 == fseeko(m_file, off, origin);
 }
 
 u64 IOFile::Tell() const {
@@ -866,26 +918,20 @@ u64 IOFile::Tell() const {
 }
 
 bool IOFile::Flush() {
-    if (!IsOpen() || 0 != std::fflush(m_file))
-        m_good = false;
-
-    return m_good;
+    return IsOpen() && 0 == std::fflush(m_file);
 }
 
 bool IOFile::Resize(u64 size) {
-    if (!IsOpen() || 0 !=
+    return IsOpen() && 0 ==
 #ifdef _WIN32
-                         // ector: _chsize sucks, not 64-bit safe
-                         // F|RES: changed to _chsize_s. i think it is 64-bit safe
-                         _chsize_s(_fileno(m_file), size)
+                           // ector: _chsize sucks, not 64-bit safe
+                           // F|RES: changed to _chsize_s. i think it is 64-bit safe
+                           _chsize_s(_fileno(m_file), size)
 #else
-                         // TODO: handle 64bit and growing
-                         ftruncate(fileno(m_file), size)
+                           // TODO: handle 64bit and growing
+                           ftruncate(fileno(m_file), size)
 #endif
-    )
-        m_good = false;
-
-    return m_good;
+        ;
 }
 
 } // namespace FileUtil

src/common/file_util.h

@@ -150,13 +150,41 @@ size_t ReadFileToString(bool text_file, const char* filename, std::string& str);
 void SplitFilename83(const std::string& filename, std::array<char, 9>& short_name,
                      std::array<char, 4>& extension);
 
+// Splits the path on '/' or '\' and put the components into a vector
+// i.e. "C:\Users\Yuzu\Documents\save.bin" becomes {"C:", "Users", "Yuzu", "Documents", "save.bin" }
+std::vector<std::string> SplitPathComponents(const std::string& filename);
+
+// Gets all of the text prior to the last '/' or '\' in the path.
+std::string GetParentPath(const std::string& path);
+
+// Gets the filename of the path
+std::string GetFilename(std::string path);
+
+// Gets the extension of the filename
+std::string GetExtensionFromFilename(const std::string& name);
+
+// Removes the final '/' or '\' if one exists
+std::string RemoveTrailingSlash(const std::string& path);
+
+// Creates a new vector containing indices [first, last) from the original.
+template <typename T>
+std::vector<T> SliceVector(const std::vector<T>& vector, size_t first, size_t last) {
+    if (first >= last)
+        return {};
+    last = std::min<size_t>(last, vector.size());
+    return std::vector<T>(vector.begin() + first, vector.begin() + first + last);
+}
+
 // simple wrapper for cstdlib file functions to
 // hopefully will make error checking easier
 // and make forgetting an fclose() harder
 class IOFile : public NonCopyable {
 public:
     IOFile();
-    IOFile(const std::string& filename, const char openmode[]);
+    // flags is used for windows specific file open mode flags, which
+    // allows yuzu to open the logs in shared write mode, so that the file
+    // isn't considered "locked" while yuzu is open and people can open the log file and view it
+    IOFile(const std::string& filename, const char openmode[], int flags = 0);
 
     ~IOFile();
 
@@ -165,45 +193,31 @@ public:
 
     void Swap(IOFile& other) noexcept;
 
-    bool Open(const std::string& filename, const char openmode[]);
+    bool Open(const std::string& filename, const char openmode[], int flags = 0);
     bool Close();
 
     template <typename T>
-    size_t ReadArray(T* data, size_t length) {
+    size_t ReadArray(T* data, size_t length) const {
         static_assert(std::is_trivially_copyable<T>(),
                       "Given array does not consist of trivially copyable objects");
 
-        if (!IsOpen()) {
-            m_good = false;
+        if (!IsOpen())
             return -1;
-        }
 
-        size_t items_read = std::fread(data, sizeof(T), length, m_file);
-        if (items_read != length)
-            m_good = false;
-
-        return items_read;
+        return std::fread(data, sizeof(T), length, m_file);
     }
 
     template <typename T>
     size_t WriteArray(const T* data, size_t length) {
         static_assert(std::is_trivially_copyable<T>(),
                       "Given array does not consist of trivially copyable objects");
-
-        if (!IsOpen()) {
-            m_good = false;
+        if (!IsOpen())
             return -1;
-        }
-
-        size_t items_written = std::fwrite(data, sizeof(T), length, m_file);
-        if (items_written != length)
-            m_good = false;
-
-        return items_written;
+        return std::fwrite(data, sizeof(T), length, m_file);
     }
 
     template <typename T>
-    size_t ReadBytes(T* data, size_t length) {
+    size_t ReadBytes(T* data, size_t length) const {
         static_assert(std::is_trivially_copyable<T>(), "T must be trivially copyable");
         return ReadArray(reinterpret_cast<char*>(data), length);
     }
@@ -220,19 +234,15 @@ public:
         return WriteArray(&object, 1);
     }
 
+    size_t WriteString(const std::string& str) {
+        return WriteArray(str.c_str(), str.length());
+    }
+
     bool IsOpen() const {
         return nullptr != m_file;
     }
 
-    // m_good is set to false when a read, write or other function fails
-    bool IsGood() const {
-        return m_good;
-    }
-    explicit operator bool() const {
-        return IsGood();
-    }
-
-    bool Seek(s64 off, int origin);
+    bool Seek(s64 off, int origin) const;
     u64 Tell() const;
     u64 GetSize() const;
     bool Resize(u64 size);
@@ -240,13 +250,11 @@ public:
 
     // clear error state
     void Clear() {
-        m_good = true;
         std::clearerr(m_file);
     }
 
 private:
     std::FILE* m_file = nullptr;
-    bool m_good = true;
 };
 
 } // namespace FileUtil

src/common/logging/backend.cpp

@@ -2,16 +2,145 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <utility>
+#include <algorithm>
+#include <array>
+#include <chrono>
+#include <condition_variable>
+#include <memory>
+#include <thread>
+#ifdef _WIN32
+#include <share.h> // For _SH_DENYWR
+#else
+#define _SH_DENYWR 0
+#endif
 #include "common/assert.h"
+#include "common/common_funcs.h" // snprintf compatibility define
 #include "common/logging/backend.h"
-#include "common/logging/filter.h"
 #include "common/logging/log.h"
 #include "common/logging/text_formatter.h"
 #include "common/string_util.h"
+#include "common/threadsafe_queue.h"
 
 namespace Log {
 
+/**
+ * Static state as a singleton.
+ */
+class Impl {
+public:
+    static Impl& Instance() {
+        static Impl backend;
+        return backend;
+    }
+
+    Impl(Impl const&) = delete;
+    const Impl& operator=(Impl const&) = delete;
+
+    void PushEntry(Entry e) {
+        std::lock_guard<std::mutex> lock(message_mutex);
+        message_queue.Push(std::move(e));
+        message_cv.notify_one();
+    }
+
+    void AddBackend(std::unique_ptr<Backend> backend) {
+        std::lock_guard<std::mutex> lock(writing_mutex);
+        backends.push_back(std::move(backend));
+    }
+
+    void RemoveBackend(const std::string& backend_name) {
+        std::lock_guard<std::mutex> lock(writing_mutex);
+        auto it = std::remove_if(backends.begin(), backends.end(), [&backend_name](const auto& i) {
+            return !strcmp(i->GetName(), backend_name.c_str());
+        });
+        backends.erase(it, backends.end());
+    }
+
+    const Filter& GetGlobalFilter() const {
+        return filter;
+    }
+
+    void SetGlobalFilter(const Filter& f) {
+        filter = f;
+    }
+
+    Backend* GetBackend(const std::string& backend_name) {
+        auto it = std::find_if(backends.begin(), backends.end(), [&backend_name](const auto& i) {
+            return !strcmp(i->GetName(), backend_name.c_str());
+        });
+        if (it == backends.end())
+            return nullptr;
+        return it->get();
+    }
+
+private:
+    Impl() {
+        backend_thread = std::thread([&] {
+            Entry entry;
+            auto write_logs = [&](Entry& e) {
+                std::lock_guard<std::mutex> lock(writing_mutex);
+                for (const auto& backend : backends) {
+                    backend->Write(e);
+                }
+            };
+            while (true) {
+                std::unique_lock<std::mutex> lock(message_mutex);
+                message_cv.wait(lock, [&] { return !running || message_queue.Pop(entry); });
+                if (!running) {
+                    break;
+                }
+                write_logs(entry);
+            }
+            // Drain the logging queue. Only writes out up to MAX_LOGS_TO_WRITE to prevent a case
+            // where a system is repeatedly spamming logs even on close.
+            constexpr int MAX_LOGS_TO_WRITE = 100;
+            int logs_written = 0;
+            while (logs_written++ < MAX_LOGS_TO_WRITE && message_queue.Pop(entry)) {
+                write_logs(entry);
+            }
+        });
+    }
+
+    ~Impl() {
+        running = false;
+        message_cv.notify_one();
+        backend_thread.join();
+    }
+
+    std::atomic_bool running{true};
+    std::mutex message_mutex, writing_mutex;
+    std::condition_variable message_cv;
+    std::thread backend_thread;
+    std::vector<std::unique_ptr<Backend>> backends;
+    Common::MPSCQueue<Log::Entry> message_queue;
+    Filter filter;
+};
+
+void ConsoleBackend::Write(const Entry& entry) {
+    PrintMessage(entry);
+}
+
+void ColorConsoleBackend::Write(const Entry& entry) {
+    PrintColoredMessage(entry);
+}
+
+// _SH_DENYWR allows read only access to the file for other programs.
+// It is #defined to 0 on other platforms
+FileBackend::FileBackend(const std::string& filename)
+    : file(filename, "w", _SH_DENYWR), bytes_written(0) {}
+
+void FileBackend::Write(const Entry& entry) {
+    // prevent logs from going over the maximum size (in case its spamming and the user doesn't
+    // know)
+    constexpr size_t MAX_BYTES_WRITTEN = 50 * 1024L * 1024L;
+    if (!file.IsOpen() || bytes_written > MAX_BYTES_WRITTEN) {
+        return;
+    }
+    bytes_written += file.WriteString(FormatLogMessage(entry) + '\n');
+    if (entry.log_level >= Level::Error) {
+        file.Flush();
+    }
+}
+
 /// Macro listing all log classes. Code should define CLS and SUB as desired before invoking this.
 #define ALL_LOG_CLASSES()                                                                          \
     CLS(Log)                                                                                       \
@@ -41,6 +170,7 @@ namespace Log {
     SUB(Service, FS)                                                                               \
     SUB(Service, HID)                                                                              \
     SUB(Service, LM)                                                                               \
+    SUB(Service, MM)                                                                               \
     SUB(Service, NFP)                                                                              \
     SUB(Service, NIFM)                                                                             \
     SUB(Service, NS)                                                                               \
@@ -124,20 +254,32 @@ Entry CreateEntry(Class log_class, Level log_level, const char* filename, unsign
     return entry;
 }
 
-static Filter* filter = nullptr;
+void SetGlobalFilter(const Filter& filter) {
+    Impl::Instance().SetGlobalFilter(filter);
+}
 
-void SetFilter(Filter* new_filter) {
-    filter = new_filter;
+void AddBackend(std::unique_ptr<Backend> backend) {
+    Impl::Instance().AddBackend(std::move(backend));
+}
+
+void RemoveBackend(const std::string& backend_name) {
+    Impl::Instance().RemoveBackend(backend_name);
+}
+
+Backend* GetBackend(const std::string& backend_name) {
+    return Impl::Instance().GetBackend(backend_name);
 }
 
 void FmtLogMessageImpl(Class log_class, Level log_level, const char* filename,
                        unsigned int line_num, const char* function, const char* format,
                        const fmt::format_args& args) {
-    if (filter && !filter->CheckMessage(log_class, log_level))
+    auto filter = Impl::Instance().GetGlobalFilter();
+    if (!filter.CheckMessage(log_class, log_level))
         return;
+
     Entry entry =
         CreateEntry(log_class, log_level, filename, line_num, function, fmt::vformat(format, args));
 
-    PrintColoredMessage(entry);
+    Impl::Instance().PushEntry(std::move(entry));
 }
-} // namespace Log
+} // namespace Log

src/common/logging/backend.h

@@ -1,13 +1,15 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
-
 #pragma once
 
 #include <chrono>
 #include <cstdarg>
+#include <memory>
 #include <string>
 #include <utility>
+#include "common/file_util.h"
+#include "common/logging/filter.h"
 #include "common/logging/log.h"
 
 namespace Log {
@@ -34,6 +36,80 @@ struct Entry {
     Entry& operator=(const Entry& o) = default;
 };
 
+/**
+ * Interface for logging backends. As loggers can be created and removed at runtime, this can be
+ * used by a frontend for adding a custom logging backend as needed
+ */
+class Backend {
+public:
+    virtual ~Backend() = default;
+    virtual void SetFilter(const Filter& new_filter) {
+        filter = new_filter;
+    }
+    virtual const char* GetName() const = 0;
+    virtual void Write(const Entry& entry) = 0;
+
+private:
+    Filter filter;
+};
+
+/**
+ * Backend that writes to stderr without any color commands
+ */
+class ConsoleBackend : public Backend {
+public:
+    static const char* Name() {
+        return "console";
+    }
+    const char* GetName() const override {
+        return Name();
+    }
+    void Write(const Entry& entry) override;
+};
+
+/**
+ * Backend that writes to stderr and with color
+ */
+class ColorConsoleBackend : public Backend {
+public:
+    static const char* Name() {
+        return "color_console";
+    }
+
+    const char* GetName() const override {
+        return Name();
+    }
+    void Write(const Entry& entry) override;
+};
+
+/**
+ * Backend that writes to a file passed into the constructor
+ */
+class FileBackend : public Backend {
+public:
+    explicit FileBackend(const std::string& filename);
+
+    static const char* Name() {
+        return "file";
+    }
+
+    const char* GetName() const override {
+        return Name();
+    }
+
+    void Write(const Entry& entry) override;
+
+private:
+    FileUtil::IOFile file;
+    size_t bytes_written;
+};
+
+void AddBackend(std::unique_ptr<Backend> backend);
+
+void RemoveBackend(const std::string& backend_name);
+
+Backend* GetBackend(const std::string& backend_name);
+
 /**
  * Returns the name of the passed log class as a C-string. Subclasses are separated by periods
  * instead of underscores as in the enumeration.
@@ -49,5 +125,10 @@ const char* GetLevelName(Level log_level);
 Entry CreateEntry(Class log_class, Level log_level, const char* filename, unsigned int line_nr,
                   const char* function, std::string message);
 
-void SetFilter(Filter* filter);
-} // namespace Log
+/**
+ * The global filter will prevent any messages from even being processed if they are filtered. Each
+ * backend can have a filter, but if the level is lower than the global filter, the backend will
+ * never get the message
+ */
+void SetGlobalFilter(const Filter& filter);
+} // namespace Log

src/common/logging/filter.cpp

@@ -65,14 +65,14 @@ bool Filter::ParseFilterRule(const std::string::const_iterator begin,
                              const std::string::const_iterator end) {
     auto level_separator = std::find(begin, end, ':');
     if (level_separator == end) {
-        NGLOG_ERROR(Log, "Invalid log filter. Must specify a log level after `:`: %s",
-                    std::string(begin, end).c_str());
+        LOG_ERROR(Log, "Invalid log filter. Must specify a log level after `:`: {}",
+                  std::string(begin, end));
         return false;
     }
 
     const Level level = GetLevelByName(level_separator + 1, end);
     if (level == Level::Count) {
-        NGLOG_ERROR(Log, "Unknown log level in filter: %s", std::string(begin, end).c_str());
+        LOG_ERROR(Log, "Unknown log level in filter: {}", std::string(begin, end));
         return false;
     }
 
@@ -83,7 +83,7 @@ bool Filter::ParseFilterRule(const std::string::const_iterator begin,
 
     const Class log_class = GetClassByName(begin, level_separator);
     if (log_class == Class::Count) {
-        NGLOG_ERROR(Log, "Unknown log class in filter: %s", std::string(begin, end).c_str());
+        LOG_ERROR(Log, "Unknown log class in filter: {}", std::string(begin, end));
         return false;
     }
 

src/common/logging/log.h

@@ -61,6 +61,7 @@ enum class Class : ClassType {
     Service_FS,        ///< The FS (Filesystem) service
     Service_HID,       ///< The HID (Human interface device) service
     Service_LM,        ///< The LM (Logger) service
+    Service_MM,        ///< The MM (Multimedia) service
     Service_NFP,       ///< The NFP service
     Service_NIFM,      ///< The NIFM (Network interface) service
     Service_NS,        ///< The NS services
@@ -108,25 +109,25 @@ void FmtLogMessage(Class log_class, Level log_level, const char* filename, unsig
 } // namespace Log
 
 #ifdef _DEBUG
-#define NGLOG_TRACE(log_class, ...)                                                                \
+#define LOG_TRACE(log_class, ...)                                                                  \
     ::Log::FmtLogMessage(::Log::Class::log_class, ::Log::Level::Trace, __FILE__, __LINE__,         \
                          __func__, __VA_ARGS__)
 #else
-#define NGLOG_TRACE(log_class, fmt, ...) (void(0))
+#define LOG_TRACE(log_class, fmt, ...) (void(0))
 #endif
 
-#define NGLOG_DEBUG(log_class, ...)                                                                \
+#define LOG_DEBUG(log_class, ...)                                                                  \
     ::Log::FmtLogMessage(::Log::Class::log_class, ::Log::Level::Debug, __FILE__, __LINE__,         \
                          __func__, __VA_ARGS__)
-#define NGLOG_INFO(log_class, ...)                                                                 \
+#define LOG_INFO(log_class, ...)                                                                   \
     ::Log::FmtLogMessage(::Log::Class::log_class, ::Log::Level::Info, __FILE__, __LINE__,          \
                          __func__, __VA_ARGS__)
-#define NGLOG_WARNING(log_class, ...)                                                              \
+#define LOG_WARNING(log_class, ...)                                                                \
     ::Log::FmtLogMessage(::Log::Class::log_class, ::Log::Level::Warning, __FILE__, __LINE__,       \
                          __func__, __VA_ARGS__)
-#define NGLOG_ERROR(log_class, ...)                                                                \
+#define LOG_ERROR(log_class, ...)                                                                  \
     ::Log::FmtLogMessage(::Log::Class::log_class, ::Log::Level::Error, __FILE__, __LINE__,         \
                          __func__, __VA_ARGS__)
-#define NGLOG_CRITICAL(log_class, ...)                                                             \
+#define LOG_CRITICAL(log_class, ...)                                                               \
     ::Log::FmtLogMessage(::Log::Class::log_class, ::Log::Level::Critical, __FILE__, __LINE__,      \
                          __func__, __VA_ARGS__)

src/common/memory_util.cpp

@@ -55,7 +55,7 @@ void* AllocateExecutableMemory(size_t size, bool low) {
     if (ptr == MAP_FAILED) {
         ptr = nullptr;
 #endif
-        NGLOG_ERROR(Common_Memory, "Failed to allocate executable memory");
+        LOG_ERROR(Common_Memory, "Failed to allocate executable memory");
     }
 #if !defined(_WIN32) && defined(ARCHITECTURE_X64) && !defined(MAP_32BIT)
     else {
@@ -68,7 +68,7 @@ void* AllocateExecutableMemory(size_t size, bool low) {
 
 #if EMU_ARCH_BITS == 64
     if ((u64)ptr >= 0x80000000 && low == true)
-        NGLOG_ERROR(Common_Memory, "Executable memory ended up above 2GB!");
+        LOG_ERROR(Common_Memory, "Executable memory ended up above 2GB!");
 #endif
 
     return ptr;
@@ -85,7 +85,7 @@ void* AllocateMemoryPages(size_t size) {
 #endif
 
     if (ptr == nullptr)
-        NGLOG_ERROR(Common_Memory, "Failed to allocate raw memory");
+        LOG_ERROR(Common_Memory, "Failed to allocate raw memory");
 
     return ptr;
 }
@@ -99,12 +99,12 @@ void* AllocateAlignedMemory(size_t size, size_t alignment) {
     ptr = memalign(alignment, size);
 #else
     if (posix_memalign(&ptr, alignment, size) != 0)
-        NGLOG_ERROR(Common_Memory, "Failed to allocate aligned memory");
+        LOG_ERROR(Common_Memory, "Failed to allocate aligned memory");
 #endif
 #endif
 
     if (ptr == nullptr)
-        NGLOG_ERROR(Common_Memory, "Failed to allocate aligned memory");
+        LOG_ERROR(Common_Memory, "Failed to allocate aligned memory");
 
     return ptr;
 }
@@ -113,7 +113,7 @@ void FreeMemoryPages(void* ptr, size_t size) {
     if (ptr) {
 #ifdef _WIN32
         if (!VirtualFree(ptr, 0, MEM_RELEASE))
-            NGLOG_ERROR(Common_Memory, "FreeMemoryPages failed!\n{}", GetLastErrorMsg());
+            LOG_ERROR(Common_Memory, "FreeMemoryPages failed!\n{}", GetLastErrorMsg());
 #else
         munmap(ptr, size);
 #endif
@@ -134,7 +134,7 @@ void WriteProtectMemory(void* ptr, size_t size, bool allowExecute) {
 #ifdef _WIN32
     DWORD oldValue;
     if (!VirtualProtect(ptr, size, allowExecute ? PAGE_EXECUTE_READ : PAGE_READONLY, &oldValue))
-        NGLOG_ERROR(Common_Memory, "WriteProtectMemory failed!\n{}", GetLastErrorMsg());
+        LOG_ERROR(Common_Memory, "WriteProtectMemory failed!\n{}", GetLastErrorMsg());
 #else
     mprotect(ptr, size, allowExecute ? (PROT_READ | PROT_EXEC) : PROT_READ);
 #endif
@@ -145,7 +145,7 @@ void UnWriteProtectMemory(void* ptr, size_t size, bool allowExecute) {
     DWORD oldValue;
     if (!VirtualProtect(ptr, size, allowExecute ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE,
                         &oldValue))
-        NGLOG_ERROR(Common_Memory, "UnWriteProtectMemory failed!\n{}", GetLastErrorMsg());
+        LOG_ERROR(Common_Memory, "UnWriteProtectMemory failed!\n{}", GetLastErrorMsg());
 #else
     mprotect(ptr, size,
              allowExecute ? (PROT_READ | PROT_WRITE | PROT_EXEC) : PROT_WRITE | PROT_READ);

src/common/param_package.cpp

@@ -25,7 +25,7 @@ ParamPackage::ParamPackage(const std::string& serialized) {
         std::vector<std::string> key_value;
         Common::SplitString(pair, KEY_VALUE_SEPARATOR, key_value);
         if (key_value.size() != 2) {
-            NGLOG_ERROR(Common, "invalid key pair {}", pair);
+            LOG_ERROR(Common, "invalid key pair {}", pair);
             continue;
         }
 
@@ -64,7 +64,7 @@ std::string ParamPackage::Serialize() const {
 std::string ParamPackage::Get(const std::string& key, const std::string& default_value) const {
     auto pair = data.find(key);
     if (pair == data.end()) {
-        NGLOG_DEBUG(Common, "key '{}' not found", key);
+        LOG_DEBUG(Common, "key '{}' not found", key);
         return default_value;
     }
 
@@ -74,14 +74,14 @@ std::string ParamPackage::Get(const std::string& key, const std::string& default
 int ParamPackage::Get(const std::string& key, int default_value) const {
     auto pair = data.find(key);
     if (pair == data.end()) {
-        NGLOG_DEBUG(Common, "key '{}' not found", key);
+        LOG_DEBUG(Common, "key '{}' not found", key);
         return default_value;
     }
 
     try {
         return std::stoi(pair->second);
     } catch (const std::logic_error&) {
-        NGLOG_ERROR(Common, "failed to convert {} to int", pair->second);
+        LOG_ERROR(Common, "failed to convert {} to int", pair->second);
         return default_value;
     }
 }
@@ -89,14 +89,14 @@ int ParamPackage::Get(const std::string& key, int default_value) const {
 float ParamPackage::Get(const std::string& key, float default_value) const {
     auto pair = data.find(key);
     if (pair == data.end()) {
-        NGLOG_DEBUG(Common, "key {} not found", key);
+        LOG_DEBUG(Common, "key {} not found", key);
         return default_value;
     }
 
     try {
         return std::stof(pair->second);
     } catch (const std::logic_error&) {
-        NGLOG_ERROR(Common, "failed to convert {} to float", pair->second);
+        LOG_ERROR(Common, "failed to convert {} to float", pair->second);
         return default_value;
     }
 }

src/common/string_util.cpp

@@ -64,6 +64,10 @@ std::string ArrayToString(const u8* data, size_t size, int line_len, bool spaces
     return oss.str();
 }
 
+std::string StringFromBuffer(const std::vector<u8>& data) {
+    return std::string(data.begin(), std::find(data.begin(), data.end(), '\0'));
+}
+
 // Turns "  hej " into "hej". Also handles tabs.
 std::string StripSpaces(const std::string& str) {
     const size_t s = str.find_first_not_of(" \t\r\n");
@@ -277,7 +281,7 @@ static std::string CodeToUTF8(const char* fromcode, const std::basic_string<T>&
 
     iconv_t const conv_desc = iconv_open("UTF-8", fromcode);
     if ((iconv_t)(-1) == conv_desc) {
-        NGLOG_ERROR(Common, "Iconv initialization failure [{}]: {}", fromcode, strerror(errno));
+        LOG_ERROR(Common, "Iconv initialization failure [{}]: {}", fromcode, strerror(errno));
         iconv_close(conv_desc);
         return {};
     }
@@ -306,7 +310,7 @@ static std::string CodeToUTF8(const char* fromcode, const std::basic_string<T>&
                     ++src_buffer;
                 }
             } else {
-                NGLOG_ERROR(Common, "iconv failure [{}]: {}", fromcode, strerror(errno));
+                LOG_ERROR(Common, "iconv failure [{}]: {}", fromcode, strerror(errno));
                 break;
             }
         }
@@ -325,7 +329,7 @@ std::u16string UTF8ToUTF16(const std::string& input) {
 
     iconv_t const conv_desc = iconv_open("UTF-16LE", "UTF-8");
     if ((iconv_t)(-1) == conv_desc) {
-        NGLOG_ERROR(Common, "Iconv initialization failure [UTF-8]: {}", strerror(errno));
+        LOG_ERROR(Common, "Iconv initialization failure [UTF-8]: {}", strerror(errno));
         iconv_close(conv_desc);
         return {};
     }
@@ -354,7 +358,7 @@ std::u16string UTF8ToUTF16(const std::string& input) {
                     ++src_buffer;
                 }
             } else {
-                NGLOG_ERROR(Common, "iconv failure [UTF-8]: {}", strerror(errno));
+                LOG_ERROR(Common, "iconv failure [UTF-8]: {}", strerror(errno));
                 break;
             }
         }

src/common/string_util.h

@@ -21,6 +21,8 @@ std::string ToUpper(std::string str);
 
 std::string ArrayToString(const u8* data, size_t size, int line_len = 20, bool spaces = true);
 
+std::string StringFromBuffer(const std::vector<u8>& data);
+
 std::string StripSpaces(const std::string& s);
 std::string StripQuotes(const std::string& s);
 

src/core/CMakeLists.txt

@@ -8,9 +8,9 @@ add_library(core STATIC
     core_cpu.h
     core_timing.cpp
     core_timing.h
+    file_sys/content_archive.cpp
+    file_sys/content_archive.h
     file_sys/directory.h
-    file_sys/disk_filesystem.cpp
-    file_sys/disk_filesystem.h
     file_sys/errors.h
     file_sys/filesystem.cpp
     file_sys/filesystem.h
@@ -20,15 +20,13 @@ add_library(core STATIC
     file_sys/path_parser.h
     file_sys/program_metadata.cpp
     file_sys/program_metadata.h
-    file_sys/romfs_factory.cpp
-    file_sys/romfs_factory.h
-    file_sys/romfs_filesystem.cpp
-    file_sys/romfs_filesystem.h
-    file_sys/savedata_factory.cpp
-    file_sys/savedata_factory.h
-    file_sys/sdmc_factory.cpp
-    file_sys/sdmc_factory.h
     file_sys/storage.h
+    file_sys/vfs.cpp
+    file_sys/vfs.h
+    file_sys/vfs_offset.cpp
+    file_sys/vfs_offset.h
+    file_sys/vfs_real.cpp
+    file_sys/vfs_real.h
     frontend/emu_window.cpp
     frontend/emu_window.h
     frontend/framebuffer_layout.cpp
@@ -40,6 +38,8 @@ add_library(core STATIC
     hle/config_mem.h
     hle/ipc.h
     hle/ipc_helpers.h
+    hle/kernel/address_arbiter.cpp
+    hle/kernel/address_arbiter.h
     hle/kernel/client_port.cpp
     hle/kernel/client_port.h
     hle/kernel/client_session.cpp
@@ -124,6 +124,8 @@ add_library(core STATIC
     hle/service/audio/audren_u.h
     hle/service/audio/codecctl.cpp
     hle/service/audio/codecctl.h
+    hle/service/audio/hwopus.cpp
+    hle/service/audio/hwopus.h
     hle/service/bcat/module.cpp
     hle/service/bcat/module.h
     hle/service/bcat/bcat.cpp
@@ -148,6 +150,8 @@ add_library(core STATIC
     hle/service/hid/hid.h
     hle/service/lm/lm.cpp
     hle/service/lm/lm.h
+    hle/service/mm/mm_u.cpp
+    hle/service/mm/mm_u.h
     hle/service/nifm/nifm.cpp
     hle/service/nifm/nifm.h
     hle/service/nifm/nifm_a.cpp
@@ -175,6 +179,8 @@ add_library(core STATIC
     hle/service/nvdrv/devices/nvhost_ctrl_gpu.h
     hle/service/nvdrv/devices/nvhost_gpu.cpp
     hle/service/nvdrv/devices/nvhost_gpu.h
+    hle/service/nvdrv/devices/nvhost_nvdec.cpp
+    hle/service/nvdrv/devices/nvhost_nvdec.h
     hle/service/nvdrv/devices/nvmap.cpp
     hle/service/nvdrv/devices/nvmap.h
     hle/service/nvdrv/interface.cpp
@@ -253,6 +259,8 @@ add_library(core STATIC
     loader/linker.h
     loader/loader.cpp
     loader/loader.h
+    loader/nca.cpp
+    loader/nca.h
     loader/nro.cpp
     loader/nro.h
     loader/nso.cpp

src/core/arm/dynarmic/arm_dynarmic.cpp

@@ -55,8 +55,8 @@ public:
     }
 
     void InterpreterFallback(u64 pc, size_t num_instructions) override {
-        NGLOG_INFO(Core_ARM, "Unicorn fallback @ 0x{:X} for {} instructions (instr = {:08X})", pc,
-                   num_instructions, MemoryReadCode(pc));
+        LOG_INFO(Core_ARM, "Unicorn fallback @ 0x{:X} for {} instructions (instr = {:08X})", pc,
+                 num_instructions, MemoryReadCode(pc));
 
         ARM_Interface::ThreadContext ctx;
         parent.SaveContext(ctx);

src/core/arm/unicorn/arm_unicorn.cpp

@@ -35,6 +35,17 @@ LoadDll LoadDll::g_load_dll;
         }                                                                                          \
     } while (0)
 
+static void CodeHook(uc_engine* uc, uint64_t address, uint32_t size, void* user_data) {
+    GDBStub::BreakpointAddress bkpt =
+        GDBStub::GetNextBreakpointFromAddress(address, GDBStub::BreakpointType::Execute);
+    if (GDBStub::IsMemoryBreak() ||
+        (bkpt.type != GDBStub::BreakpointType::None && address == bkpt.address)) {
+        auto core = static_cast<ARM_Unicorn*>(user_data);
+        core->RecordBreak(bkpt);
+        uc_emu_stop(uc);
+    }
+}
+
 static void InterruptHook(uc_engine* uc, u32 intNo, void* user_data) {
     u32 esr{};
     CHECKED(uc_reg_read(uc, UC_ARM64_REG_ESR, &esr));
@@ -67,6 +78,10 @@ ARM_Unicorn::ARM_Unicorn() {
     uc_hook hook{};
     CHECKED(uc_hook_add(uc, &hook, UC_HOOK_INTR, (void*)InterruptHook, this, 0, -1));
     CHECKED(uc_hook_add(uc, &hook, UC_HOOK_MEM_INVALID, (void*)UnmappedMemoryHook, this, 0, -1));
+    if (GDBStub::IsServerEnabled()) {
+        CHECKED(uc_hook_add(uc, &hook, UC_HOOK_CODE, (void*)CodeHook, this, 0, -1));
+        last_bkpt_hit = false;
+    }
 }
 
 ARM_Unicorn::~ARM_Unicorn() {
@@ -155,7 +170,11 @@ void ARM_Unicorn::SetTlsAddress(VAddr base) {
 }
 
 void ARM_Unicorn::Run() {
-    ExecuteInstructions(std::max(CoreTiming::GetDowncount(), 0));
+    if (GDBStub::IsServerEnabled()) {
+        ExecuteInstructions(std::max(4000000, 0));
+    } else {
+        ExecuteInstructions(std::max(CoreTiming::GetDowncount(), 0));
+    }
 }
 
 void ARM_Unicorn::Step() {
@@ -168,6 +187,18 @@ void ARM_Unicorn::ExecuteInstructions(int num_instructions) {
     MICROPROFILE_SCOPE(ARM_Jit);
     CHECKED(uc_emu_start(uc, GetPC(), 1ULL << 63, 0, num_instructions));
     CoreTiming::AddTicks(num_instructions);
+    if (GDBStub::IsServerEnabled()) {
+        if (last_bkpt_hit) {
+            uc_reg_write(uc, UC_ARM64_REG_PC, &last_bkpt.address);
+        }
+        Kernel::Thread* thread = Kernel::GetCurrentThread();
+        SaveContext(thread->context);
+        if (last_bkpt_hit) {
+            last_bkpt_hit = false;
+            GDBStub::Break();
+        }
+        GDBStub::SendTrap(thread, 5);
+    }
 }
 
 void ARM_Unicorn::SaveContext(ARM_Interface::ThreadContext& ctx) {
@@ -233,3 +264,8 @@ void ARM_Unicorn::PrepareReschedule() {
 }
 
 void ARM_Unicorn::ClearInstructionCache() {}
+
+void ARM_Unicorn::RecordBreak(GDBStub::BreakpointAddress bkpt) {
+    last_bkpt = bkpt;
+    last_bkpt_hit = true;
+}

src/core/arm/unicorn/arm_unicorn.h

@@ -7,6 +7,7 @@
 #include <unicorn/unicorn.h>
 #include "common/common_types.h"
 #include "core/arm/arm_interface.h"
+#include "core/gdbstub/gdbstub.h"
 
 class ARM_Unicorn final : public ARM_Interface {
 public:
@@ -35,7 +36,10 @@ public:
     void Step() override;
     void ClearInstructionCache() override;
     void PageTableChanged() override{};
+    void RecordBreak(GDBStub::BreakpointAddress bkpt);
 
 private:
     uc_engine* uc{};
+    GDBStub::BreakpointAddress last_bkpt{};
+    bool last_bkpt_hit;
 };

src/core/core.cpp

@@ -19,6 +19,7 @@
 #include "core/loader/loader.h"
 #include "core/memory_setup.h"
 #include "core/settings.h"
+#include "file_sys/vfs_real.h"
 #include "video_core/video_core.h"
 
 namespace Core {
@@ -84,18 +85,18 @@ System::ResultStatus System::SingleStep() {
 }
 
 System::ResultStatus System::Load(EmuWindow* emu_window, const std::string& filepath) {
-    app_loader = Loader::GetLoader(filepath);
+    app_loader = Loader::GetLoader(std::make_shared<FileSys::RealVfsFile>(filepath));
 
     if (!app_loader) {
-        NGLOG_CRITICAL(Core, "Failed to obtain loader for {}!", filepath);
+        LOG_CRITICAL(Core, "Failed to obtain loader for {}!", filepath);
         return ResultStatus::ErrorGetLoader;
     }
     std::pair<boost::optional<u32>, Loader::ResultStatus> system_mode =
         app_loader->LoadKernelSystemMode();
 
     if (system_mode.second != Loader::ResultStatus::Success) {
-        NGLOG_CRITICAL(Core, "Failed to determine system mode (Error {})!",
-                       static_cast<int>(system_mode.second));
+        LOG_CRITICAL(Core, "Failed to determine system mode (Error {})!",
+                     static_cast<int>(system_mode.second));
 
         switch (system_mode.second) {
         case Loader::ResultStatus::ErrorEncrypted:
@@ -111,15 +112,15 @@ System::ResultStatus System::Load(EmuWindow* emu_window, const std::string& file
 
     ResultStatus init_result{Init(emu_window, system_mode.first.get())};
     if (init_result != ResultStatus::Success) {
-        NGLOG_CRITICAL(Core, "Failed to initialize system (Error {})!",
-                       static_cast<int>(init_result));
+        LOG_CRITICAL(Core, "Failed to initialize system (Error {})!",
+                     static_cast<int>(init_result));
         System::Shutdown();
         return init_result;
     }
 
     const Loader::ResultStatus load_result{app_loader->Load(current_process)};
     if (Loader::ResultStatus::Success != load_result) {
-        NGLOG_CRITICAL(Core, "Failed to load ROM (Error {})!", static_cast<int>(load_result));
+        LOG_CRITICAL(Core, "Failed to load ROM (Error {})!", static_cast<int>(load_result));
         System::Shutdown();
 
         switch (load_result) {
@@ -161,7 +162,7 @@ Cpu& System::CpuCore(size_t core_index) {
 }
 
 System::ResultStatus System::Init(EmuWindow* emu_window, u32 system_mode) {
-    NGLOG_DEBUG(HW_Memory, "initialized OK");
+    LOG_DEBUG(HW_Memory, "initialized OK");
 
     CoreTiming::Init();
 
@@ -196,7 +197,7 @@ System::ResultStatus System::Init(EmuWindow* emu_window, u32 system_mode) {
         }
     }
 
-    NGLOG_DEBUG(Core, "Initialized OK");
+    LOG_DEBUG(Core, "Initialized OK");
 
     // Reset counters and set time origin to current frame
     GetAndResetPerfStats();
@@ -245,7 +246,7 @@ void System::Shutdown() {
     // Close app loader
     app_loader.reset();
 
-    NGLOG_DEBUG(Core, "Shutdown OK");
+    LOG_DEBUG(Core, "Shutdown OK");
 }
 
 Service::SM::ServiceManager& System::ServiceManager() {

src/core/core_cpu.cpp

@@ -56,7 +56,7 @@ Cpu::Cpu(std::shared_ptr<CpuBarrier> cpu_barrier, size_t core_index)
         arm_interface = std::make_shared<ARM_Dynarmic>();
 #else
         cpu_core = std::make_shared<ARM_Unicorn>();
-        NGLOG_WARNING(Core, "CPU JIT requested, but Dynarmic not available");
+        LOG_WARNING(Core, "CPU JIT requested, but Dynarmic not available");
 #endif
     } else {
         arm_interface = std::make_shared<ARM_Unicorn>();
@@ -75,7 +75,7 @@ void Cpu::RunLoop(bool tight_loop) {
     // If we don't have a currently active thread then don't execute instructions,
     // instead advance to the next event and try to yield to the next thread
     if (Kernel::GetCurrentThread() == nullptr) {
-        NGLOG_TRACE(Core, "Core-{} idling", core_index);
+        LOG_TRACE(Core, "Core-{} idling", core_index);
 
         if (IsMainCore()) {
             CoreTiming::Idle();

src/core/core_timing.cpp

@@ -74,11 +74,11 @@ static void EmptyTimedCallback(u64 userdata, s64 cyclesLate) {}
 
 s64 usToCycles(s64 us) {
     if (us / 1000000 > MAX_VALUE_TO_MULTIPLY) {
-        NGLOG_ERROR(Core_Timing, "Integer overflow, use max value");
+        LOG_ERROR(Core_Timing, "Integer overflow, use max value");
         return std::numeric_limits<s64>::max();
     }
     if (us > MAX_VALUE_TO_MULTIPLY) {
-        NGLOG_DEBUG(Core_Timing, "Time very big, do rounding");
+        LOG_DEBUG(Core_Timing, "Time very big, do rounding");
         return BASE_CLOCK_RATE * (us / 1000000);
     }
     return (BASE_CLOCK_RATE * us) / 1000000;
@@ -86,11 +86,11 @@ s64 usToCycles(s64 us) {
 
 s64 usToCycles(u64 us) {
     if (us / 1000000 > MAX_VALUE_TO_MULTIPLY) {
-        NGLOG_ERROR(Core_Timing, "Integer overflow, use max value");
+        LOG_ERROR(Core_Timing, "Integer overflow, use max value");
         return std::numeric_limits<s64>::max();
     }
     if (us > MAX_VALUE_TO_MULTIPLY) {
-        NGLOG_DEBUG(Core_Timing, "Time very big, do rounding");
+        LOG_DEBUG(Core_Timing, "Time very big, do rounding");
         return BASE_CLOCK_RATE * static_cast<s64>(us / 1000000);
     }
     return (BASE_CLOCK_RATE * static_cast<s64>(us)) / 1000000;
@@ -98,11 +98,11 @@ s64 usToCycles(u64 us) {
 
 s64 nsToCycles(s64 ns) {
     if (ns / 1000000000 > MAX_VALUE_TO_MULTIPLY) {
-        NGLOG_ERROR(Core_Timing, "Integer overflow, use max value");
+        LOG_ERROR(Core_Timing, "Integer overflow, use max value");
         return std::numeric_limits<s64>::max();
     }
     if (ns > MAX_VALUE_TO_MULTIPLY) {
-        NGLOG_DEBUG(Core_Timing, "Time very big, do rounding");
+        LOG_DEBUG(Core_Timing, "Time very big, do rounding");
         return BASE_CLOCK_RATE * (ns / 1000000000);
     }
     return (BASE_CLOCK_RATE * ns) / 1000000000;
@@ -110,11 +110,11 @@ s64 nsToCycles(s64 ns) {
 
 s64 nsToCycles(u64 ns) {
     if (ns / 1000000000 > MAX_VALUE_TO_MULTIPLY) {
-        NGLOG_ERROR(Core_Timing, "Integer overflow, use max value");
+        LOG_ERROR(Core_Timing, "Integer overflow, use max value");
         return std::numeric_limits<s64>::max();
     }
     if (ns > MAX_VALUE_TO_MULTIPLY) {
-        NGLOG_DEBUG(Core_Timing, "Time very big, do rounding");
+        LOG_DEBUG(Core_Timing, "Time very big, do rounding");
         return BASE_CLOCK_RATE * (static_cast<s64>(ns) / 1000000000);
     }
     return (BASE_CLOCK_RATE * static_cast<s64>(ns)) / 1000000000;

src/core/file_sys/content_archive.cpp

@@ -0,0 +1,164 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/logging/log.h"
+#include "core/file_sys/content_archive.h"
+#include "core/file_sys/vfs_offset.h"
+#include "core/loader/loader.h"
+
+namespace FileSys {
+
+// Media offsets in headers are stored divided by 512. Mult. by this to get real offset.
+constexpr u64 MEDIA_OFFSET_MULTIPLIER = 0x200;
+
+constexpr u64 SECTION_HEADER_SIZE = 0x200;
+constexpr u64 SECTION_HEADER_OFFSET = 0x400;
+
+constexpr u32 IVFC_MAX_LEVEL = 6;
+
+enum class NCASectionFilesystemType : u8 { PFS0 = 0x2, ROMFS = 0x3 };
+
+struct NCASectionHeaderBlock {
+    INSERT_PADDING_BYTES(3);
+    NCASectionFilesystemType filesystem_type;
+    u8 crypto_type;
+    INSERT_PADDING_BYTES(3);
+};
+static_assert(sizeof(NCASectionHeaderBlock) == 0x8, "NCASectionHeaderBlock has incorrect size.");
+
+struct PFS0Superblock {
+    NCASectionHeaderBlock header_block;
+    std::array<u8, 0x20> hash;
+    u32_le size;
+    INSERT_PADDING_BYTES(4);
+    u64_le hash_table_offset;
+    u64_le hash_table_size;
+    u64_le pfs0_header_offset;
+    u64_le pfs0_size;
+    INSERT_PADDING_BYTES(432);
+};
+static_assert(sizeof(PFS0Superblock) == 0x200, "PFS0Superblock has incorrect size.");
+
+struct IVFCLevel {
+    u64_le offset;
+    u64_le size;
+    u32_le block_size;
+    u32_le reserved;
+};
+static_assert(sizeof(IVFCLevel) == 0x18, "IVFCLevel has incorrect size.");
+
+struct RomFSSuperblock {
+    NCASectionHeaderBlock header_block;
+    u32_le magic;
+    u32_le magic_number;
+    INSERT_PADDING_BYTES(8);
+    std::array<IVFCLevel, 6> levels;
+    INSERT_PADDING_BYTES(64);
+};
+static_assert(sizeof(RomFSSuperblock) == 0xE8, "RomFSSuperblock has incorrect size.");
+
+NCA::NCA(VirtualFile file_) : file(file_) {
+    if (sizeof(NCAHeader) != file->ReadObject(&header))
+        LOG_CRITICAL(Loader, "File reader errored out during header read.");
+
+    if (!IsValidNCA(header)) {
+        status = Loader::ResultStatus::ErrorInvalidFormat;
+        return;
+    }
+
+    std::ptrdiff_t number_sections =
+        std::count_if(std::begin(header.section_tables), std::end(header.section_tables),
+                      [](NCASectionTableEntry entry) { return entry.media_offset > 0; });
+
+    for (std::ptrdiff_t i = 0; i < number_sections; ++i) {
+        // Seek to beginning of this section.
+        NCASectionHeaderBlock block{};
+        if (sizeof(NCASectionHeaderBlock) !=
+            file->ReadObject(&block, SECTION_HEADER_OFFSET + i * SECTION_HEADER_SIZE))
+            LOG_CRITICAL(Loader, "File reader errored out during header read.");
+
+        if (block.filesystem_type == NCASectionFilesystemType::ROMFS) {
+            RomFSSuperblock sb{};
+            if (sizeof(RomFSSuperblock) !=
+                file->ReadObject(&sb, SECTION_HEADER_OFFSET + i * SECTION_HEADER_SIZE))
+                LOG_CRITICAL(Loader, "File reader errored out during header read.");
+
+            const size_t romfs_offset =
+                header.section_tables[i].media_offset * MEDIA_OFFSET_MULTIPLIER +
+                sb.levels[IVFC_MAX_LEVEL - 1].offset;
+            const size_t romfs_size = sb.levels[IVFC_MAX_LEVEL - 1].size;
+            files.emplace_back(std::make_shared<OffsetVfsFile>(file, romfs_size, romfs_offset));
+            romfs = files.back();
+        } else if (block.filesystem_type == NCASectionFilesystemType::PFS0) {
+            PFS0Superblock sb{};
+            // Seek back to beginning of this section.
+            if (sizeof(PFS0Superblock) !=
+                file->ReadObject(&sb, SECTION_HEADER_OFFSET + i * SECTION_HEADER_SIZE))
+                LOG_CRITICAL(Loader, "File reader errored out during header read.");
+
+            u64 offset = (static_cast<u64>(header.section_tables[i].media_offset) *
+                          MEDIA_OFFSET_MULTIPLIER) +
+                         sb.pfs0_header_offset;
+            u64 size = MEDIA_OFFSET_MULTIPLIER * (header.section_tables[i].media_end_offset -
+                                                  header.section_tables[i].media_offset);
+            auto npfs = std::make_shared<PartitionFilesystem>(
+                std::make_shared<OffsetVfsFile>(file, size, offset));
+
+            if (npfs->GetStatus() == Loader::ResultStatus::Success) {
+                dirs.emplace_back(npfs);
+                if (IsDirectoryExeFS(dirs.back()))
+                    exefs = dirs.back();
+            }
+        }
+    }
+
+    status = Loader::ResultStatus::Success;
+}
+
+Loader::ResultStatus NCA::GetStatus() const {
+    return status;
+}
+
+std::vector<std::shared_ptr<VfsFile>> NCA::GetFiles() const {
+    if (status != Loader::ResultStatus::Success)
+        return {};
+    return files;
+}
+
+std::vector<std::shared_ptr<VfsDirectory>> NCA::GetSubdirectories() const {
+    if (status != Loader::ResultStatus::Success)
+        return {};
+    return dirs;
+}
+
+std::string NCA::GetName() const {
+    return file->GetName();
+}
+
+std::shared_ptr<VfsDirectory> NCA::GetParentDirectory() const {
+    return file->GetContainingDirectory();
+}
+
+NCAContentType NCA::GetType() const {
+    return header.content_type;
+}
+
+u64 NCA::GetTitleId() const {
+    if (status != Loader::ResultStatus::Success)
+        return {};
+    return header.title_id;
+}
+
+VirtualFile NCA::GetRomFS() const {
+    return romfs;
+}
+
+VirtualDir NCA::GetExeFS() const {
+    return exefs;
+}
+
+bool NCA::ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) {
+    return false;
+}
+} // namespace FileSys

src/core/file_sys/content_archive.h

@@ -0,0 +1,89 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "common/swap.h"
+#include "core/file_sys/partition_filesystem.h"
+
+namespace FileSys {
+
+enum class NCAContentType : u8 { Program = 0, Meta = 1, Control = 2, Manual = 3, Data = 4 };
+
+struct NCASectionTableEntry {
+    u32_le media_offset;
+    u32_le media_end_offset;
+    INSERT_PADDING_BYTES(0x8);
+};
+static_assert(sizeof(NCASectionTableEntry) == 0x10, "NCASectionTableEntry has incorrect size.");
+
+struct NCAHeader {
+    std::array<u8, 0x100> rsa_signature_1;
+    std::array<u8, 0x100> rsa_signature_2;
+    u32_le magic;
+    u8 is_system;
+    NCAContentType content_type;
+    u8 crypto_type;
+    u8 key_index;
+    u64_le size;
+    u64_le title_id;
+    INSERT_PADDING_BYTES(0x4);
+    u32_le sdk_version;
+    u8 crypto_type_2;
+    INSERT_PADDING_BYTES(15);
+    std::array<u8, 0x10> rights_id;
+    std::array<NCASectionTableEntry, 0x4> section_tables;
+    std::array<std::array<u8, 0x20>, 0x4> hash_tables;
+    std::array<std::array<u8, 0x10>, 0x4> key_area;
+    INSERT_PADDING_BYTES(0xC0);
+};
+static_assert(sizeof(NCAHeader) == 0x400, "NCAHeader has incorrect size.");
+
+static bool IsDirectoryExeFS(std::shared_ptr<FileSys::VfsDirectory> pfs) {
+    // According to switchbrew, an exefs must only contain these two files:
+    return pfs->GetFile("main") != nullptr && pfs->GetFile("main.npdm") != nullptr;
+}
+
+static bool IsValidNCA(const NCAHeader& header) {
+    return header.magic == Common::MakeMagic('N', 'C', 'A', '2') ||
+           header.magic == Common::MakeMagic('N', 'C', 'A', '3');
+}
+
+// An implementation of VfsDirectory that represents a Nintendo Content Archive (NCA) conatiner.
+// After construction, use GetStatus to determine if the file is valid and ready to be used.
+class NCA : public ReadOnlyVfsDirectory {
+public:
+    explicit NCA(VirtualFile file);
+    Loader::ResultStatus GetStatus() const;
+
+    std::vector<std::shared_ptr<VfsFile>> GetFiles() const override;
+    std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const override;
+    std::string GetName() const override;
+    std::shared_ptr<VfsDirectory> GetParentDirectory() const override;
+
+    NCAContentType GetType() const;
+    u64 GetTitleId() const;
+
+    VirtualFile GetRomFS() const;
+    VirtualDir GetExeFS() const;
+
+protected:
+    bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) override;
+
+private:
+    std::vector<VirtualDir> dirs;
+    std::vector<VirtualFile> files;
+
+    VirtualFile romfs = nullptr;
+    VirtualDir exefs = nullptr;
+    VirtualFile file;
+
+    NCAHeader header{};
+
+    Loader::ResultStatus status{};
+};
+
+} // namespace FileSys

src/core/file_sys/disk_filesystem.cpp

@@ -1,237 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <cstring>
-#include <memory>
-#include "common/common_types.h"
-#include "common/logging/log.h"
-#include "core/file_sys/disk_filesystem.h"
-#include "core/file_sys/errors.h"
-
-namespace FileSys {
-
-static std::string ModeFlagsToString(Mode mode) {
-    std::string mode_str;
-    u32 mode_flags = static_cast<u32>(mode);
-
-    // Calculate the correct open mode for the file.
-    if ((mode_flags & static_cast<u32>(Mode::Read)) &&
-        (mode_flags & static_cast<u32>(Mode::Write))) {
-        if (mode_flags & static_cast<u32>(Mode::Append))
-            mode_str = "a+";
-        else
-            mode_str = "r+";
-    } else {
-        if (mode_flags & static_cast<u32>(Mode::Read))
-            mode_str = "r";
-        else if (mode_flags & static_cast<u32>(Mode::Append))
-            mode_str = "a";
-        else if (mode_flags & static_cast<u32>(Mode::Write))
-            mode_str = "w";
-    }
-
-    mode_str += "b";
-
-    return mode_str;
-}
-
-std::string Disk_FileSystem::GetName() const {
-    return "Disk";
-}
-
-ResultVal<std::unique_ptr<StorageBackend>> Disk_FileSystem::OpenFile(const std::string& path,
-                                                                     Mode mode) const {
-
-    // Calculate the correct open mode for the file.
-    std::string mode_str = ModeFlagsToString(mode);
-
-    std::string full_path = base_directory + path;
-    auto file = std::make_shared<FileUtil::IOFile>(full_path, mode_str.c_str());
-
-    if (!file->IsOpen()) {
-        return ERROR_PATH_NOT_FOUND;
-    }
-
-    return MakeResult<std::unique_ptr<StorageBackend>>(
-        std::make_unique<Disk_Storage>(std::move(file)));
-}
-
-ResultCode Disk_FileSystem::DeleteFile(const std::string& path) const {
-    if (!FileUtil::Exists(path)) {
-        return ERROR_PATH_NOT_FOUND;
-    }
-
-    FileUtil::Delete(path);
-
-    return RESULT_SUCCESS;
-}
-
-ResultCode Disk_FileSystem::RenameFile(const std::string& src_path,
-                                       const std::string& dest_path) const {
-    const std::string full_src_path = base_directory + src_path;
-    const std::string full_dest_path = base_directory + dest_path;
-
-    if (!FileUtil::Exists(full_src_path)) {
-        return ERROR_PATH_NOT_FOUND;
-    }
-    // TODO(wwylele): Use correct error code
-    return FileUtil::Rename(full_src_path, full_dest_path) ? RESULT_SUCCESS : ResultCode(-1);
-}
-
-ResultCode Disk_FileSystem::DeleteDirectory(const Path& path) const {
-    NGLOG_WARNING(Service_FS, "(STUBBED) called");
-    // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultCode Disk_FileSystem::DeleteDirectoryRecursively(const Path& path) const {
-    NGLOG_WARNING(Service_FS, "(STUBBED) called");
-    // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultCode Disk_FileSystem::CreateFile(const std::string& path, u64 size) const {
-    NGLOG_WARNING(Service_FS, "(STUBBED) called");
-
-    std::string full_path = base_directory + path;
-    if (size == 0) {
-        FileUtil::CreateEmptyFile(full_path);
-        return RESULT_SUCCESS;
-    }
-
-    FileUtil::IOFile file(full_path, "wb");
-    // Creates a sparse file (or a normal file on filesystems without the concept of sparse files)
-    // We do this by seeking to the right size, then writing a single null byte.
-    if (file.Seek(size - 1, SEEK_SET) && file.WriteBytes("", 1) == 1) {
-        return RESULT_SUCCESS;
-    }
-
-    NGLOG_ERROR(Service_FS, "Too large file");
-    // TODO(Subv): Find out the correct error code
-    return ResultCode(-1);
-}
-
-ResultCode Disk_FileSystem::CreateDirectory(const std::string& path) const {
-    // TODO(Subv): Perform path validation to prevent escaping the emulator sandbox.
-    std::string full_path = base_directory + path;
-
-    if (FileUtil::CreateDir(full_path)) {
-        return RESULT_SUCCESS;
-    }
-
-    NGLOG_CRITICAL(Service_FS, "(unreachable) Unknown error creating {}", full_path);
-    // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultCode Disk_FileSystem::RenameDirectory(const Path& src_path, const Path& dest_path) const {
-    NGLOG_WARNING(Service_FS, "(STUBBED) called");
-    // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultVal<std::unique_ptr<DirectoryBackend>> Disk_FileSystem::OpenDirectory(
-    const std::string& path) const {
-
-    std::string full_path = base_directory + path;
-
-    if (!FileUtil::IsDirectory(full_path)) {
-        // TODO(Subv): Find the correct error code for this.
-        return ResultCode(-1);
-    }
-
-    auto directory = std::make_unique<Disk_Directory>(full_path);
-    return MakeResult<std::unique_ptr<DirectoryBackend>>(std::move(directory));
-}
-
-u64 Disk_FileSystem::GetFreeSpaceSize() const {
-    NGLOG_WARNING(Service_FS, "(STUBBED) called");
-    return 0;
-}
-
-ResultVal<FileSys::EntryType> Disk_FileSystem::GetEntryType(const std::string& path) const {
-    std::string full_path = base_directory + path;
-    if (!FileUtil::Exists(full_path)) {
-        return ERROR_PATH_NOT_FOUND;
-    }
-
-    if (FileUtil::IsDirectory(full_path))
-        return MakeResult(EntryType::Directory);
-
-    return MakeResult(EntryType::File);
-}
-
-ResultVal<size_t> Disk_Storage::Read(const u64 offset, const size_t length, u8* buffer) const {
-    NGLOG_TRACE(Service_FS, "called offset={}, length={}", offset, length);
-    file->Seek(offset, SEEK_SET);
-    return MakeResult<size_t>(file->ReadBytes(buffer, length));
-}
-
-ResultVal<size_t> Disk_Storage::Write(const u64 offset, const size_t length, const bool flush,
-                                      const u8* buffer) const {
-    NGLOG_WARNING(Service_FS, "(STUBBED) called");
-    file->Seek(offset, SEEK_SET);
-    size_t written = file->WriteBytes(buffer, length);
-    if (flush) {
-        file->Flush();
-    }
-    return MakeResult<size_t>(written);
-}
-
-u64 Disk_Storage::GetSize() const {
-    return file->GetSize();
-}
-
-bool Disk_Storage::SetSize(const u64 size) const {
-    file->Resize(size);
-    file->Flush();
-    return true;
-}
-
-Disk_Directory::Disk_Directory(const std::string& path) {
-    unsigned size = FileUtil::ScanDirectoryTree(path, directory);
-    directory.size = size;
-    directory.isDirectory = true;
-    children_iterator = directory.children.begin();
-}
-
-u64 Disk_Directory::Read(const u64 count, Entry* entries) {
-    u64 entries_read = 0;
-
-    while (entries_read < count && children_iterator != directory.children.cend()) {
-        const FileUtil::FSTEntry& file = *children_iterator;
-        const std::string& filename = file.virtualName;
-        Entry& entry = entries[entries_read];
-
-        NGLOG_TRACE(Service_FS, "File {}: size={} dir={}", filename, file.size, file.isDirectory);
-
-        // TODO(Link Mauve): use a proper conversion to UTF-16.
-        for (size_t j = 0; j < FILENAME_LENGTH; ++j) {
-            entry.filename[j] = filename[j];
-            if (!filename[j])
-                break;
-        }
-
-        if (file.isDirectory) {
-            entry.file_size = 0;
-            entry.type = EntryType::Directory;
-        } else {
-            entry.file_size = file.size;
-            entry.type = EntryType::File;
-        }
-
-        ++entries_read;
-        ++children_iterator;
-    }
-    return entries_read;
-}
-
-u64 Disk_Directory::GetEntryCount() const {
-    // We convert the children iterator into a const_iterator to allow template argument deduction
-    // in std::distance.
-    std::vector<FileUtil::FSTEntry>::const_iterator current = children_iterator;
-    return std::distance(current, directory.children.end());
-}
-
-} // namespace FileSys

src/core/file_sys/disk_filesystem.h

@@ -1,84 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <cstddef>
-#include <memory>
-#include <string>
-#include "common/common_types.h"
-#include "common/file_util.h"
-#include "core/file_sys/directory.h"
-#include "core/file_sys/filesystem.h"
-#include "core/file_sys/storage.h"
-#include "core/hle/result.h"
-
-namespace FileSys {
-
-class Disk_FileSystem : public FileSystemBackend {
-public:
-    explicit Disk_FileSystem(std::string base_directory)
-        : base_directory(std::move(base_directory)) {}
-
-    std::string GetName() const override;
-
-    ResultVal<std::unique_ptr<StorageBackend>> OpenFile(const std::string& path,
-                                                        Mode mode) const override;
-    ResultCode DeleteFile(const std::string& path) const override;
-    ResultCode RenameFile(const std::string& src_path, const std::string& dest_path) const override;
-    ResultCode DeleteDirectory(const Path& path) const override;
-    ResultCode DeleteDirectoryRecursively(const Path& path) const override;
-    ResultCode CreateFile(const std::string& path, u64 size) const override;
-    ResultCode CreateDirectory(const std::string& path) const override;
-    ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override;
-    ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(
-        const std::string& path) const override;
-    u64 GetFreeSpaceSize() const override;
-    ResultVal<EntryType> GetEntryType(const std::string& path) const override;
-
-protected:
-    std::string base_directory;
-};
-
-class Disk_Storage : public StorageBackend {
-public:
-    explicit Disk_Storage(std::shared_ptr<FileUtil::IOFile> file) : file(std::move(file)) {}
-
-    ResultVal<size_t> Read(u64 offset, size_t length, u8* buffer) const override;
-    ResultVal<size_t> Write(u64 offset, size_t length, bool flush, const u8* buffer) const override;
-    u64 GetSize() const override;
-    bool SetSize(u64 size) const override;
-    bool Close() const override {
-        return false;
-    }
-    void Flush() const override {}
-
-private:
-    std::shared_ptr<FileUtil::IOFile> file;
-};
-
-class Disk_Directory : public DirectoryBackend {
-public:
-    explicit Disk_Directory(const std::string& path);
-
-    ~Disk_Directory() override {
-        Close();
-    }
-
-    u64 Read(const u64 count, Entry* entries) override;
-    u64 GetEntryCount() const override;
-
-    bool Close() const override {
-        return true;
-    }
-
-protected:
-    FileUtil::FSTEntry directory;
-
-    // We need to remember the last entry we returned, so a subsequent call to Read will continue
-    // from the next one. This iterator will always point to the next unread entry.
-    std::vector<FileUtil::FSTEntry>::iterator children_iterator;
-};
-
-} // namespace FileSys

src/core/file_sys/filesystem.cpp

@@ -71,7 +71,7 @@ std::string Path::AsString() const {
     case Binary:
     default:
         // TODO(yuriks): Add assert
-        NGLOG_ERROR(Service_FS, "LowPathType cannot be converted to string!");
+        LOG_ERROR(Service_FS, "LowPathType cannot be converted to string!");
         return {};
     }
 }
@@ -87,7 +87,7 @@ std::u16string Path::AsU16Str() const {
     case Invalid:
     case Binary:
         // TODO(yuriks): Add assert
-        NGLOG_ERROR(Service_FS, "LowPathType cannot be converted to u16string!");
+        LOG_ERROR(Service_FS, "LowPathType cannot be converted to u16string!");
         return {};
     }
 
@@ -115,7 +115,7 @@ std::vector<u8> Path::AsBinary() const {
     case Invalid:
     default:
         // TODO(yuriks): Add assert
-        NGLOG_ERROR(Service_FS, "LowPathType cannot be converted to binary!");
+        LOG_ERROR(Service_FS, "LowPathType cannot be converted to binary!");
         return {};
     }
 }

src/core/file_sys/filesystem.h

@@ -66,136 +66,4 @@ private:
     std::u16string u16str;
 };
 
-/// Parameters of the archive, as specified in the Create or Format call.
-struct ArchiveFormatInfo {
-    u32_le total_size;         ///< The pre-defined size of the archive.
-    u32_le number_directories; ///< The pre-defined number of directories in the archive.
-    u32_le number_files;       ///< The pre-defined number of files in the archive.
-    u8 duplicate_data;         ///< Whether the archive should duplicate the data.
-};
-static_assert(std::is_pod<ArchiveFormatInfo>::value, "ArchiveFormatInfo is not POD");
-
-class FileSystemBackend : NonCopyable {
-public:
-    virtual ~FileSystemBackend() {}
-
-    /**
-     * Get a descriptive name for the archive (e.g. "RomFS", "SaveData", etc.)
-     */
-    virtual std::string GetName() const = 0;
-
-    /**
-     * Create a file specified by its path
-     * @param path Path relative to the Archive
-     * @param size The size of the new file, filled with zeroes
-     * @return Result of the operation
-     */
-    virtual ResultCode CreateFile(const std::string& path, u64 size) const = 0;
-
-    /**
-     * Delete a file specified by its path
-     * @param path Path relative to the archive
-     * @return Result of the operation
-     */
-    virtual ResultCode DeleteFile(const std::string& path) const = 0;
-
-    /**
-     * Create a directory specified by its path
-     * @param path Path relative to the archive
-     * @return Result of the operation
-     */
-    virtual ResultCode CreateDirectory(const std::string& path) const = 0;
-
-    /**
-     * Delete a directory specified by its path
-     * @param path Path relative to the archive
-     * @return Result of the operation
-     */
-    virtual ResultCode DeleteDirectory(const Path& path) const = 0;
-
-    /**
-     * Delete a directory specified by its path and anything under it
-     * @param path Path relative to the archive
-     * @return Result of the operation
-     */
-    virtual ResultCode DeleteDirectoryRecursively(const Path& path) const = 0;
-
-    /**
-     * Rename a File specified by its path
-     * @param src_path Source path relative to the archive
-     * @param dest_path Destination path relative to the archive
-     * @return Result of the operation
-     */
-    virtual ResultCode RenameFile(const std::string& src_path,
-                                  const std::string& dest_path) const = 0;
-
-    /**
-     * Rename a Directory specified by its path
-     * @param src_path Source path relative to the archive
-     * @param dest_path Destination path relative to the archive
-     * @return Result of the operation
-     */
-    virtual ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const = 0;
-
-    /**
-     * Open a file specified by its path, using the specified mode
-     * @param path Path relative to the archive
-     * @param mode Mode to open the file with
-     * @return Opened file, or error code
-     */
-    virtual ResultVal<std::unique_ptr<StorageBackend>> OpenFile(const std::string& path,
-                                                                Mode mode) const = 0;
-
-    /**
-     * Open a directory specified by its path
-     * @param path Path relative to the archive
-     * @return Opened directory, or error code
-     */
-    virtual ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(
-        const std::string& path) const = 0;
-
-    /**
-     * Get the free space
-     * @return The number of free bytes in the archive
-     */
-    virtual u64 GetFreeSpaceSize() const = 0;
-
-    /**
-     * Get the type of the specified path
-     * @return The type of the specified path or error code
-     */
-    virtual ResultVal<EntryType> GetEntryType(const std::string& path) const = 0;
-};
-
-class FileSystemFactory : NonCopyable {
-public:
-    virtual ~FileSystemFactory() {}
-
-    /**
-     * Get a descriptive name for the archive (e.g. "RomFS", "SaveData", etc.)
-     */
-    virtual std::string GetName() const = 0;
-
-    /**
-     * Tries to open the archive of this type with the specified path
-     * @param path Path to the archive
-     * @return An ArchiveBackend corresponding operating specified archive path.
-     */
-    virtual ResultVal<std::unique_ptr<FileSystemBackend>> Open(const Path& path) = 0;
-
-    /**
-     * Deletes the archive contents and then re-creates the base folder
-     * @param path Path to the archive
-     * @return ResultCode of the operation, 0 on success
-     */
-    virtual ResultCode Format(const Path& path) = 0;
-
-    /**
-     * Retrieves the format info about the archive with the specified path
-     * @param path Path to the archive
-     * @return Format information about the archive or error code
-     */
-    virtual ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path) const = 0;
-};
-
 } // namespace FileSys

src/core/file_sys/partition_filesystem.cpp

@@ -6,119 +6,119 @@
 #include "common/file_util.h"
 #include "common/logging/log.h"
 #include "core/file_sys/partition_filesystem.h"
+#include "core/file_sys/vfs_offset.h"
 #include "core/loader/loader.h"
 
 namespace FileSys {
 
-Loader::ResultStatus PartitionFilesystem::Load(const std::string& file_path, size_t offset) {
-    FileUtil::IOFile file(file_path, "rb");
-    if (!file.IsOpen())
-        return Loader::ResultStatus::Error;
-
+PartitionFilesystem::PartitionFilesystem(std::shared_ptr<VfsFile> file) {
     // At least be as large as the header
-    if (file.GetSize() < sizeof(Header))
-        return Loader::ResultStatus::Error;
+    if (file->GetSize() < sizeof(Header)) {
+        status = Loader::ResultStatus::Error;
+        return;
+    }
 
     // For cartridges, HFSs can get very large, so we need to calculate the size up to
     // the actual content itself instead of just blindly reading in the entire file.
     Header pfs_header;
-    if (!file.ReadBytes(&pfs_header, sizeof(Header)))
-        return Loader::ResultStatus::Error;
+    if (sizeof(Header) != file->ReadObject(&pfs_header)) {
+        status = Loader::ResultStatus::Error;
+        return;
+    }
+
+    if (pfs_header.magic != Common::MakeMagic('H', 'F', 'S', '0') &&
+        pfs_header.magic != Common::MakeMagic('P', 'F', 'S', '0')) {
+        status = Loader::ResultStatus::ErrorInvalidFormat;
+        return;
+    }
+
+    bool is_hfs = pfs_header.magic == Common::MakeMagic('H', 'F', 'S', '0');
 
-    bool is_hfs = (memcmp(pfs_header.magic.data(), "HFS", 3) == 0);
     size_t entry_size = is_hfs ? sizeof(HFSEntry) : sizeof(PFSEntry);
     size_t metadata_size =
         sizeof(Header) + (pfs_header.num_entries * entry_size) + pfs_header.strtab_size;
 
     // Actually read in now...
-    file.Seek(offset, SEEK_SET);
-    std::vector<u8> file_data(metadata_size);
+    std::vector<u8> file_data = file->ReadBytes(metadata_size);
 
-    if (!file.ReadBytes(file_data.data(), metadata_size))
-        return Loader::ResultStatus::Error;
+    if (file_data.size() != metadata_size) {
+        status = Loader::ResultStatus::Error;
+        return;
+    }
 
-    Loader::ResultStatus result = Load(file_data);
-    if (result != Loader::ResultStatus::Success)
-        NGLOG_ERROR(Service_FS, "Failed to load PFS from file {}!", file_path);
+    size_t total_size = file_data.size();
+    if (total_size < sizeof(Header)) {
+        status = Loader::ResultStatus::Error;
+        return;
+    }
 
-    return result;
-}
+    memcpy(&pfs_header, file_data.data(), sizeof(Header));
+    if (pfs_header.magic != Common::MakeMagic('H', 'F', 'S', '0') &&
+        pfs_header.magic != Common::MakeMagic('P', 'F', 'S', '0')) {
+        status = Loader::ResultStatus::ErrorInvalidFormat;
+        return;
+    }
 
-Loader::ResultStatus PartitionFilesystem::Load(const std::vector<u8>& file_data, size_t offset) {
-    size_t total_size = file_data.size() - offset;
-    if (total_size < sizeof(Header))
-        return Loader::ResultStatus::Error;
+    is_hfs = pfs_header.magic == Common::MakeMagic('H', 'F', 'S', '0');
 
-    memcpy(&pfs_header, &file_data[offset], sizeof(Header));
-    is_hfs = (memcmp(pfs_header.magic.data(), "HFS", 3) == 0);
-
-    size_t entries_offset = offset + sizeof(Header);
-    size_t entry_size = is_hfs ? sizeof(HFSEntry) : sizeof(PFSEntry);
+    size_t entries_offset = sizeof(Header);
     size_t strtab_offset = entries_offset + (pfs_header.num_entries * entry_size);
-    for (u16 i = 0; i < pfs_header.num_entries; i++) {
-        FileEntry entry;
-
-        memcpy(&entry.fs_entry, &file_data[entries_offset + (i * entry_size)], sizeof(FSEntry));
-        entry.name = std::string(reinterpret_cast<const char*>(
-            &file_data[strtab_offset + entry.fs_entry.strtab_offset]));
-        pfs_entries.push_back(std::move(entry));
-    }
-
     content_offset = strtab_offset + pfs_header.strtab_size;
+    for (u16 i = 0; i < pfs_header.num_entries; i++) {
+        FSEntry entry;
 
-    return Loader::ResultStatus::Success;
-}
+        memcpy(&entry, &file_data[entries_offset + (i * entry_size)], sizeof(FSEntry));
+        std::string name(
+            reinterpret_cast<const char*>(&file_data[strtab_offset + entry.strtab_offset]));
 
-u32 PartitionFilesystem::GetNumEntries() const {
-    return pfs_header.num_entries;
-}
-
-u64 PartitionFilesystem::GetEntryOffset(int index) const {
-    if (index > GetNumEntries())
-        return 0;
-
-    return content_offset + pfs_entries[index].fs_entry.offset;
-}
-
-u64 PartitionFilesystem::GetEntrySize(int index) const {
-    if (index > GetNumEntries())
-        return 0;
-
-    return pfs_entries[index].fs_entry.size;
-}
-
-std::string PartitionFilesystem::GetEntryName(int index) const {
-    if (index > GetNumEntries())
-        return "";
-
-    return pfs_entries[index].name;
-}
-
-u64 PartitionFilesystem::GetFileOffset(const std::string& name) const {
-    for (u32 i = 0; i < pfs_header.num_entries; i++) {
-        if (pfs_entries[i].name == name)
-            return content_offset + pfs_entries[i].fs_entry.offset;
+        pfs_files.emplace_back(
+            std::make_shared<OffsetVfsFile>(file, entry.size, content_offset + entry.offset, name));
     }
 
-    return 0;
+    status = Loader::ResultStatus::Success;
 }
 
-u64 PartitionFilesystem::GetFileSize(const std::string& name) const {
-    for (u32 i = 0; i < pfs_header.num_entries; i++) {
-        if (pfs_entries[i].name == name)
-            return pfs_entries[i].fs_entry.size;
-    }
-
-    return 0;
+Loader::ResultStatus PartitionFilesystem::GetStatus() const {
+    return status;
 }
 
-void PartitionFilesystem::Print() const {
-    NGLOG_DEBUG(Service_FS, "Magic:                  {:.4}", pfs_header.magic.data());
-    NGLOG_DEBUG(Service_FS, "Files:                  {}", pfs_header.num_entries);
+std::vector<std::shared_ptr<VfsFile>> PartitionFilesystem::GetFiles() const {
+    return pfs_files;
+}
+
+std::vector<std::shared_ptr<VfsDirectory>> PartitionFilesystem::GetSubdirectories() const {
+    return {};
+}
+
+std::string PartitionFilesystem::GetName() const {
+    return is_hfs ? "HFS0" : "PFS0";
+}
+
+std::shared_ptr<VfsDirectory> PartitionFilesystem::GetParentDirectory() const {
+    // TODO(DarkLordZach): Add support for nested containers.
+    return nullptr;
+}
+
+void PartitionFilesystem::PrintDebugInfo() const {
+    LOG_DEBUG(Service_FS, "Magic:                  {:.4}", pfs_header.magic);
+    LOG_DEBUG(Service_FS, "Files:                  {}", pfs_header.num_entries);
     for (u32 i = 0; i < pfs_header.num_entries; i++) {
-        NGLOG_DEBUG(Service_FS, " > File {}:              {} (0x{:X} bytes, at 0x{:X})", i,
-                    pfs_entries[i].name.c_str(), pfs_entries[i].fs_entry.size,
-                    GetFileOffset(pfs_entries[i].name));
+        LOG_DEBUG(Service_FS, " > File {}:              {} (0x{:X} bytes, at 0x{:X})", i,
+                  pfs_files[i]->GetName(), pfs_files[i]->GetSize(),
+                  dynamic_cast<OffsetVfsFile*>(pfs_files[i].get())->GetOffset());
     }
 }
+
+bool PartitionFilesystem::ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) {
+    auto iter = std::find(pfs_files.begin(), pfs_files.end(), file);
+    if (iter == pfs_files.end())
+        return false;
+
+    pfs_files[iter - pfs_files.begin()] = pfs_files.back();
+    pfs_files.pop_back();
+
+    pfs_dirs.emplace_back(dir);
+
+    return true;
+}
 } // namespace FileSys

src/core/file_sys/partition_filesystem.h

@@ -10,6 +10,7 @@
 #include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "common/swap.h"
+#include "core/file_sys/vfs.h"
 
 namespace Loader {
 enum class ResultStatus;
@@ -21,23 +22,23 @@ namespace FileSys {
  * Helper which implements an interface to parse PFS/HFS filesystems.
  * Data can either be loaded from a file path or data with an offset into it.
  */
-class PartitionFilesystem {
+class PartitionFilesystem : public ReadOnlyVfsDirectory {
 public:
-    Loader::ResultStatus Load(const std::string& file_path, size_t offset = 0);
-    Loader::ResultStatus Load(const std::vector<u8>& file_data, size_t offset = 0);
+    explicit PartitionFilesystem(std::shared_ptr<VfsFile> file);
+    Loader::ResultStatus GetStatus() const;
 
-    u32 GetNumEntries() const;
-    u64 GetEntryOffset(int index) const;
-    u64 GetEntrySize(int index) const;
-    std::string GetEntryName(int index) const;
-    u64 GetFileOffset(const std::string& name) const;
-    u64 GetFileSize(const std::string& name) const;
+    std::vector<std::shared_ptr<VfsFile>> GetFiles() const override;
+    std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const override;
+    std::string GetName() const override;
+    std::shared_ptr<VfsDirectory> GetParentDirectory() const override;
+    void PrintDebugInfo() const;
 
-    void Print() const;
+protected:
+    bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) override;
 
 private:
     struct Header {
-        std::array<char, 4> magic;
+        u32_le magic;
         u32_le num_entries;
         u32_le strtab_size;
         INSERT_PADDING_BYTES(0x4);
@@ -72,16 +73,14 @@ private:
 
 #pragma pack(pop)
 
-    struct FileEntry {
-        FSEntry fs_entry;
-        std::string name;
-    };
+    Loader::ResultStatus status;
 
     Header pfs_header;
     bool is_hfs;
     size_t content_offset;
 
-    std::vector<FileEntry> pfs_entries;
+    std::vector<VirtualFile> pfs_files;
+    std::vector<VirtualDir> pfs_dirs;
 };
 
 } // namespace FileSys

src/core/file_sys/program_metadata.cpp

@@ -9,40 +9,29 @@
 
 namespace FileSys {
 
-Loader::ResultStatus ProgramMetadata::Load(const std::string& file_path) {
-    FileUtil::IOFile file(file_path, "rb");
-    if (!file.IsOpen())
-        return Loader::ResultStatus::Error;
-
-    std::vector<u8> file_data(file.GetSize());
-
-    if (!file.ReadBytes(file_data.data(), file_data.size()))
-        return Loader::ResultStatus::Error;
-
-    Loader::ResultStatus result = Load(file_data);
-    if (result != Loader::ResultStatus::Success)
-        NGLOG_ERROR(Service_FS, "Failed to load NPDM from file {}!", file_path);
-
-    return result;
-}
-
-Loader::ResultStatus ProgramMetadata::Load(const std::vector<u8> file_data, size_t offset) {
-    size_t total_size = static_cast<size_t>(file_data.size() - offset);
+Loader::ResultStatus ProgramMetadata::Load(VirtualFile file) {
+    size_t total_size = static_cast<size_t>(file->GetSize());
     if (total_size < sizeof(Header))
         return Loader::ResultStatus::Error;
 
-    size_t header_offset = offset;
-    memcpy(&npdm_header, &file_data[offset], sizeof(Header));
+    // TODO(DarkLordZach): Use ReadObject when Header/AcidHeader becomes trivially copyable.
+    std::vector<u8> npdm_header_data = file->ReadBytes(sizeof(Header));
+    if (sizeof(Header) != npdm_header_data.size())
+        return Loader::ResultStatus::Error;
+    std::memcpy(&npdm_header, npdm_header_data.data(), sizeof(Header));
 
-    size_t aci_offset = header_offset + npdm_header.aci_offset;
-    size_t acid_offset = header_offset + npdm_header.acid_offset;
-    memcpy(&aci_header, &file_data[aci_offset], sizeof(AciHeader));
-    memcpy(&acid_header, &file_data[acid_offset], sizeof(AcidHeader));
+    std::vector<u8> acid_header_data = file->ReadBytes(sizeof(AcidHeader), npdm_header.acid_offset);
+    if (sizeof(AcidHeader) != acid_header_data.size())
+        return Loader::ResultStatus::Error;
+    std::memcpy(&acid_header, acid_header_data.data(), sizeof(AcidHeader));
 
-    size_t fac_offset = acid_offset + acid_header.fac_offset;
-    size_t fah_offset = aci_offset + aci_header.fah_offset;
-    memcpy(&acid_file_access, &file_data[fac_offset], sizeof(FileAccessControl));
-    memcpy(&aci_file_access, &file_data[fah_offset], sizeof(FileAccessHeader));
+    if (sizeof(AciHeader) != file->ReadObject(&aci_header, npdm_header.aci_offset))
+        return Loader::ResultStatus::Error;
+
+    if (sizeof(FileAccessControl) != file->ReadObject(&acid_file_access, acid_header.fac_offset))
+        return Loader::ResultStatus::Error;
+    if (sizeof(FileAccessHeader) != file->ReadObject(&aci_file_access, aci_header.fah_offset))
+        return Loader::ResultStatus::Error;
 
     return Loader::ResultStatus::Success;
 }
@@ -76,14 +65,14 @@ u64 ProgramMetadata::GetFilesystemPermissions() const {
 }
 
 void ProgramMetadata::Print() const {
-    NGLOG_DEBUG(Service_FS, "Magic:                  {:.4}", npdm_header.magic.data());
-    NGLOG_DEBUG(Service_FS, "Main thread priority:   0x{:02X}", npdm_header.main_thread_priority);
-    NGLOG_DEBUG(Service_FS, "Main thread core:       {}", npdm_header.main_thread_cpu);
-    NGLOG_DEBUG(Service_FS, "Main thread stack size: 0x{:X} bytes", npdm_header.main_stack_size);
-    NGLOG_DEBUG(Service_FS, "Process category:       {}", npdm_header.process_category);
-    NGLOG_DEBUG(Service_FS, "Flags:                  0x{:02X}", npdm_header.flags);
-    NGLOG_DEBUG(Service_FS, " > 64-bit instructions: {}",
-                npdm_header.has_64_bit_instructions ? "YES" : "NO");
+    LOG_DEBUG(Service_FS, "Magic:                  {:.4}", npdm_header.magic.data());
+    LOG_DEBUG(Service_FS, "Main thread priority:   0x{:02X}", npdm_header.main_thread_priority);
+    LOG_DEBUG(Service_FS, "Main thread core:       {}", npdm_header.main_thread_cpu);
+    LOG_DEBUG(Service_FS, "Main thread stack size: 0x{:X} bytes", npdm_header.main_stack_size);
+    LOG_DEBUG(Service_FS, "Process category:       {}", npdm_header.process_category);
+    LOG_DEBUG(Service_FS, "Flags:                  0x{:02X}", npdm_header.flags);
+    LOG_DEBUG(Service_FS, " > 64-bit instructions: {}",
+              npdm_header.has_64_bit_instructions ? "YES" : "NO");
 
     auto address_space = "Unknown";
     switch (npdm_header.address_space_type) {
@@ -95,19 +84,19 @@ void ProgramMetadata::Print() const {
         break;
     }
 
-    NGLOG_DEBUG(Service_FS, " > Address space:       {}\n", address_space);
+    LOG_DEBUG(Service_FS, " > Address space:       {}\n", address_space);
 
     // Begin ACID printing (potential perms, signed)
-    NGLOG_DEBUG(Service_FS, "Magic:                  {:.4}", acid_header.magic.data());
-    NGLOG_DEBUG(Service_FS, "Flags:                  0x{:02X}", acid_header.flags);
-    NGLOG_DEBUG(Service_FS, " > Is Retail:           {}", acid_header.is_retail ? "YES" : "NO");
-    NGLOG_DEBUG(Service_FS, "Title ID Min:           0x{:016X}", acid_header.title_id_min);
-    NGLOG_DEBUG(Service_FS, "Title ID Max:           0x{:016X}", acid_header.title_id_max);
-    NGLOG_DEBUG(Service_FS, "Filesystem Access:      0x{:016X}\n", acid_file_access.permissions);
+    LOG_DEBUG(Service_FS, "Magic:                  {:.4}", acid_header.magic.data());
+    LOG_DEBUG(Service_FS, "Flags:                  0x{:02X}", acid_header.flags);
+    LOG_DEBUG(Service_FS, " > Is Retail:           {}", acid_header.is_retail ? "YES" : "NO");
+    LOG_DEBUG(Service_FS, "Title ID Min:           0x{:016X}", acid_header.title_id_min);
+    LOG_DEBUG(Service_FS, "Title ID Max:           0x{:016X}", acid_header.title_id_max);
+    LOG_DEBUG(Service_FS, "Filesystem Access:      0x{:016X}\n", acid_file_access.permissions);
 
     // Begin ACI0 printing (actual perms, unsigned)
-    NGLOG_DEBUG(Service_FS, "Magic:                  {:.4}", aci_header.magic.data());
-    NGLOG_DEBUG(Service_FS, "Title ID:               0x{:016X}", aci_header.title_id);
-    NGLOG_DEBUG(Service_FS, "Filesystem Access:      0x{:016X}\n", aci_file_access.permissions);
+    LOG_DEBUG(Service_FS, "Magic:                  {:.4}", aci_header.magic.data());
+    LOG_DEBUG(Service_FS, "Title ID:               0x{:016X}", aci_header.title_id);
+    LOG_DEBUG(Service_FS, "Filesystem Access:      0x{:016X}\n", aci_file_access.permissions);
 }
 } // namespace FileSys

src/core/file_sys/program_metadata.h

@@ -10,6 +10,7 @@
 #include "common/bit_field.h"
 #include "common/common_types.h"
 #include "common/swap.h"
+#include "partition_filesystem.h"
 
 namespace Loader {
 enum class ResultStatus;
@@ -37,8 +38,7 @@ enum class ProgramFilePermission : u64 {
  */
 class ProgramMetadata {
 public:
-    Loader::ResultStatus Load(const std::string& file_path);
-    Loader::ResultStatus Load(const std::vector<u8> file_data, size_t offset = 0);
+    Loader::ResultStatus Load(VirtualFile file);
 
     bool Is64BitProgram() const;
     ProgramAddressSpaceType GetAddressSpaceType() const;
@@ -51,6 +51,7 @@ public:
     void Print() const;
 
 private:
+    // TODO(DarkLordZach): BitField is not trivially copyable.
     struct Header {
         std::array<char, 4> magic;
         std::array<u8, 8> reserved;
@@ -77,6 +78,7 @@ private:
 
     static_assert(sizeof(Header) == 0x80, "NPDM header structure size is wrong");
 
+    // TODO(DarkLordZach): BitField is not trivially copyable.
     struct AcidHeader {
         std::array<u8, 0x100> signature;
         std::array<u8, 0x100> nca_modulus;

src/core/file_sys/romfs_factory.cpp

@@ -1,38 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <algorithm>
-#include <memory>
-#include "common/common_types.h"
-#include "common/logging/log.h"
-#include "core/file_sys/romfs_factory.h"
-#include "core/file_sys/romfs_filesystem.h"
-
-namespace FileSys {
-
-RomFS_Factory::RomFS_Factory(Loader::AppLoader& app_loader) {
-    // Load the RomFS from the app
-    if (Loader::ResultStatus::Success != app_loader.ReadRomFS(romfs_file, data_offset, data_size)) {
-        NGLOG_ERROR(Service_FS, "Unable to read RomFS!");
-    }
-}
-
-ResultVal<std::unique_ptr<FileSystemBackend>> RomFS_Factory::Open(const Path& path) {
-    auto archive = std::make_unique<RomFS_FileSystem>(romfs_file, data_offset, data_size);
-    return MakeResult<std::unique_ptr<FileSystemBackend>>(std::move(archive));
-}
-
-ResultCode RomFS_Factory::Format(const Path& path) {
-    NGLOG_ERROR(Service_FS, "Unimplemented Format archive {}", GetName());
-    // TODO(bunnei): Find the right error code for this
-    return ResultCode(-1);
-}
-
-ResultVal<ArchiveFormatInfo> RomFS_Factory::GetFormatInfo(const Path& path) const {
-    NGLOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive {}", GetName());
-    // TODO(bunnei): Find the right error code for this
-    return ResultCode(-1);
-}
-
-} // namespace FileSys

src/core/file_sys/romfs_factory.h

@@ -1,35 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <memory>
-#include <string>
-#include <vector>
-#include "common/common_types.h"
-#include "core/file_sys/filesystem.h"
-#include "core/hle/result.h"
-#include "core/loader/loader.h"
-
-namespace FileSys {
-
-/// File system interface to the RomFS archive
-class RomFS_Factory final : public FileSystemFactory {
-public:
-    explicit RomFS_Factory(Loader::AppLoader& app_loader);
-
-    std::string GetName() const override {
-        return "ArchiveFactory_RomFS";
-    }
-    ResultVal<std::unique_ptr<FileSystemBackend>> Open(const Path& path) override;
-    ResultCode Format(const Path& path) override;
-    ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path) const override;
-
-private:
-    std::shared_ptr<FileUtil::IOFile> romfs_file;
-    u64 data_offset;
-    u64 data_size;
-};
-
-} // namespace FileSys

src/core/file_sys/romfs_filesystem.cpp

@@ -1,112 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <cstring>
-#include <memory>
-#include "common/common_types.h"
-#include "common/logging/log.h"
-#include "core/file_sys/romfs_filesystem.h"
-
-namespace FileSys {
-
-std::string RomFS_FileSystem::GetName() const {
-    return "RomFS";
-}
-
-ResultVal<std::unique_ptr<StorageBackend>> RomFS_FileSystem::OpenFile(const std::string& path,
-                                                                      Mode mode) const {
-    return MakeResult<std::unique_ptr<StorageBackend>>(
-        std::make_unique<RomFS_Storage>(romfs_file, data_offset, data_size));
-}
-
-ResultCode RomFS_FileSystem::DeleteFile(const std::string& path) const {
-    NGLOG_CRITICAL(Service_FS, "Attempted to delete a file from an ROMFS archive ({}).", GetName());
-    // TODO(bunnei): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultCode RomFS_FileSystem::RenameFile(const std::string& src_path,
-                                        const std::string& dest_path) const {
-    NGLOG_CRITICAL(Service_FS, "Attempted to rename a file within an ROMFS archive ({}).",
-                   GetName());
-    // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultCode RomFS_FileSystem::DeleteDirectory(const Path& path) const {
-    NGLOG_CRITICAL(Service_FS, "Attempted to delete a directory from an ROMFS archive ({}).",
-                   GetName());
-    // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultCode RomFS_FileSystem::DeleteDirectoryRecursively(const Path& path) const {
-    NGLOG_CRITICAL(Service_FS, "Attempted to delete a directory from an ROMFS archive ({}).",
-                   GetName());
-    // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultCode RomFS_FileSystem::CreateFile(const std::string& path, u64 size) const {
-    NGLOG_CRITICAL(Service_FS, "Attempted to create a file in an ROMFS archive ({}).", GetName());
-    // TODO(bunnei): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultCode RomFS_FileSystem::CreateDirectory(const std::string& path) const {
-    NGLOG_CRITICAL(Service_FS, "Attempted to create a directory in an ROMFS archive ({}).",
-                   GetName());
-    // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultCode RomFS_FileSystem::RenameDirectory(const Path& src_path, const Path& dest_path) const {
-    NGLOG_CRITICAL(Service_FS, "Attempted to rename a file within an ROMFS archive ({}).",
-                   GetName());
-    // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultVal<std::unique_ptr<DirectoryBackend>> RomFS_FileSystem::OpenDirectory(
-    const std::string& path) const {
-    NGLOG_WARNING(Service_FS, "Opening Directory in a ROMFS archive");
-    return MakeResult<std::unique_ptr<DirectoryBackend>>(std::make_unique<ROMFSDirectory>());
-}
-
-u64 RomFS_FileSystem::GetFreeSpaceSize() const {
-    NGLOG_WARNING(Service_FS, "Attempted to get the free space in an ROMFS archive");
-    return 0;
-}
-
-ResultVal<FileSys::EntryType> RomFS_FileSystem::GetEntryType(const std::string& path) const {
-    NGLOG_CRITICAL(Service_FS, "Called within an ROMFS archive (path {}).", path);
-    // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultVal<size_t> RomFS_Storage::Read(const u64 offset, const size_t length, u8* buffer) const {
-    NGLOG_TRACE(Service_FS, "called offset={}, length={}", offset, length);
-    romfs_file->Seek(data_offset + offset, SEEK_SET);
-    size_t read_length = (size_t)std::min((u64)length, data_size - offset);
-
-    return MakeResult<size_t>(romfs_file->ReadBytes(buffer, read_length));
-}
-
-ResultVal<size_t> RomFS_Storage::Write(const u64 offset, const size_t length, const bool flush,
-                                       const u8* buffer) const {
-    NGLOG_ERROR(Service_FS, "Attempted to write to ROMFS file");
-    // TODO(Subv): Find error code
-    return MakeResult<size_t>(0);
-}
-
-u64 RomFS_Storage::GetSize() const {
-    return data_size;
-}
-
-bool RomFS_Storage::SetSize(const u64 size) const {
-    NGLOG_ERROR(Service_FS, "Attempted to set the size of an ROMFS file");
-    return false;
-}
-
-} // namespace FileSys

src/core/file_sys/romfs_filesystem.h

@@ -1,85 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <cstddef>
-#include <memory>
-#include <string>
-#include <vector>
-#include "common/common_types.h"
-#include "common/file_util.h"
-#include "core/file_sys/directory.h"
-#include "core/file_sys/filesystem.h"
-#include "core/file_sys/storage.h"
-#include "core/hle/result.h"
-
-namespace FileSys {
-
-/**
- * Helper which implements an interface to deal with Switch .istorage ROMFS images used in some
- * archives This should be subclassed by concrete archive types, which will provide the input data
- * (load the raw ROMFS archive) and override any required methods
- */
-class RomFS_FileSystem : public FileSystemBackend {
-public:
-    RomFS_FileSystem(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
-        : romfs_file(file), data_offset(offset), data_size(size) {}
-
-    std::string GetName() const override;
-
-    ResultVal<std::unique_ptr<StorageBackend>> OpenFile(const std::string& path,
-                                                        Mode mode) const override;
-    ResultCode DeleteFile(const std::string& path) const override;
-    ResultCode RenameFile(const std::string& src_path, const std::string& dest_path) const override;
-    ResultCode DeleteDirectory(const Path& path) const override;
-    ResultCode DeleteDirectoryRecursively(const Path& path) const override;
-    ResultCode CreateFile(const std::string& path, u64 size) const override;
-    ResultCode CreateDirectory(const std::string& path) const override;
-    ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override;
-    ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(
-        const std::string& path) const override;
-    u64 GetFreeSpaceSize() const override;
-    ResultVal<EntryType> GetEntryType(const std::string& path) const override;
-
-protected:
-    std::shared_ptr<FileUtil::IOFile> romfs_file;
-    u64 data_offset;
-    u64 data_size;
-};
-
-class RomFS_Storage : public StorageBackend {
-public:
-    RomFS_Storage(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
-        : romfs_file(file), data_offset(offset), data_size(size) {}
-
-    ResultVal<size_t> Read(u64 offset, size_t length, u8* buffer) const override;
-    ResultVal<size_t> Write(u64 offset, size_t length, bool flush, const u8* buffer) const override;
-    u64 GetSize() const override;
-    bool SetSize(u64 size) const override;
-    bool Close() const override {
-        return false;
-    }
-    void Flush() const override {}
-
-private:
-    std::shared_ptr<FileUtil::IOFile> romfs_file;
-    u64 data_offset;
-    u64 data_size;
-};
-
-class ROMFSDirectory : public DirectoryBackend {
-public:
-    u64 Read(const u64 count, Entry* entries) override {
-        return 0;
-    }
-    u64 GetEntryCount() const override {
-        return 0;
-    }
-    bool Close() const override {
-        return false;
-    }
-};
-
-} // namespace FileSys

src/core/file_sys/savedata_factory.cpp

@@ -1,54 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <memory>
-#include "common/common_types.h"
-#include "common/logging/log.h"
-#include "core/core.h"
-#include "core/file_sys/disk_filesystem.h"
-#include "core/file_sys/savedata_factory.h"
-#include "core/hle/kernel/process.h"
-
-namespace FileSys {
-
-SaveData_Factory::SaveData_Factory(std::string nand_directory)
-    : nand_directory(std::move(nand_directory)) {}
-
-ResultVal<std::unique_ptr<FileSystemBackend>> SaveData_Factory::Open(const Path& path) {
-    std::string save_directory = GetFullPath();
-    // Return an error if the save data doesn't actually exist.
-    if (!FileUtil::IsDirectory(save_directory)) {
-        // TODO(Subv): Find out correct error code.
-        return ResultCode(-1);
-    }
-
-    auto archive = std::make_unique<Disk_FileSystem>(save_directory);
-    return MakeResult<std::unique_ptr<FileSystemBackend>>(std::move(archive));
-}
-
-ResultCode SaveData_Factory::Format(const Path& path) {
-    NGLOG_WARNING(Service_FS, "Format archive {}", GetName());
-    // Create the save data directory.
-    if (!FileUtil::CreateFullPath(GetFullPath())) {
-        // TODO(Subv): Find the correct error code.
-        return ResultCode(-1);
-    }
-
-    return RESULT_SUCCESS;
-}
-
-ResultVal<ArchiveFormatInfo> SaveData_Factory::GetFormatInfo(const Path& path) const {
-    NGLOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive {}", GetName());
-    // TODO(bunnei): Find the right error code for this
-    return ResultCode(-1);
-}
-
-std::string SaveData_Factory::GetFullPath() const {
-    u64 title_id = Core::CurrentProcess()->program_id;
-    // TODO(Subv): Somehow obtain this value.
-    u32 user = 0;
-    return fmt::format("{}save/{:016X}/{:08X}/", nand_directory, title_id, user);
-}
-
-} // namespace FileSys

src/core/file_sys/savedata_factory.h

@@ -1,33 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <memory>
-#include <string>
-#include "common/common_types.h"
-#include "core/file_sys/filesystem.h"
-#include "core/hle/result.h"
-
-namespace FileSys {
-
-/// File system interface to the SaveData archive
-class SaveData_Factory final : public FileSystemFactory {
-public:
-    explicit SaveData_Factory(std::string nand_directory);
-
-    std::string GetName() const override {
-        return "SaveData_Factory";
-    }
-    ResultVal<std::unique_ptr<FileSystemBackend>> Open(const Path& path) override;
-    ResultCode Format(const Path& path) override;
-    ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path) const override;
-
-private:
-    std::string nand_directory;
-
-    std::string GetFullPath() const;
-};
-
-} // namespace FileSys

src/core/file_sys/sdmc_factory.cpp

@@ -1,39 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <memory>
-#include "common/common_types.h"
-#include "common/logging/log.h"
-#include "common/string_util.h"
-#include "core/core.h"
-#include "core/file_sys/disk_filesystem.h"
-#include "core/file_sys/sdmc_factory.h"
-
-namespace FileSys {
-
-SDMC_Factory::SDMC_Factory(std::string sd_directory) : sd_directory(std::move(sd_directory)) {}
-
-ResultVal<std::unique_ptr<FileSystemBackend>> SDMC_Factory::Open(const Path& path) {
-    // Create the SD Card directory if it doesn't already exist.
-    if (!FileUtil::IsDirectory(sd_directory)) {
-        FileUtil::CreateFullPath(sd_directory);
-    }
-
-    auto archive = std::make_unique<Disk_FileSystem>(sd_directory);
-    return MakeResult<std::unique_ptr<FileSystemBackend>>(std::move(archive));
-}
-
-ResultCode SDMC_Factory::Format(const Path& path) {
-    NGLOG_ERROR(Service_FS, "Unimplemented Format archive {}", GetName());
-    // TODO(Subv): Find the right error code for this
-    return ResultCode(-1);
-}
-
-ResultVal<ArchiveFormatInfo> SDMC_Factory::GetFormatInfo(const Path& path) const {
-    NGLOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive {}", GetName());
-    // TODO(bunnei): Find the right error code for this
-    return ResultCode(-1);
-}
-
-} // namespace FileSys

src/core/file_sys/sdmc_factory.h

@@ -1,31 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <memory>
-#include <string>
-#include "common/common_types.h"
-#include "core/file_sys/filesystem.h"
-#include "core/hle/result.h"
-
-namespace FileSys {
-
-/// File system interface to the SDCard archive
-class SDMC_Factory final : public FileSystemFactory {
-public:
-    explicit SDMC_Factory(std::string sd_directory);
-
-    std::string GetName() const override {
-        return "SDMC_Factory";
-    }
-    ResultVal<std::unique_ptr<FileSystemBackend>> Open(const Path& path) override;
-    ResultCode Format(const Path& path) override;
-    ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path) const override;
-
-private:
-    std::string sd_directory;
-};
-
-} // namespace FileSys

src/core/file_sys/vfs.cpp

@@ -0,0 +1,187 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include <numeric>
+#include "common/file_util.h"
+#include "core/file_sys/vfs.h"
+
+namespace FileSys {
+
+VfsFile::~VfsFile() = default;
+
+std::string VfsFile::GetExtension() const {
+    return FileUtil::GetExtensionFromFilename(GetName());
+}
+
+VfsDirectory::~VfsDirectory() = default;
+
+boost::optional<u8> VfsFile::ReadByte(size_t offset) const {
+    u8 out{};
+    size_t size = Read(&out, 1, offset);
+    if (size == 1)
+        return out;
+
+    return boost::none;
+}
+
+std::vector<u8> VfsFile::ReadBytes(size_t size, size_t offset) const {
+    std::vector<u8> out(size);
+    size_t read_size = Read(out.data(), size, offset);
+    out.resize(read_size);
+    return out;
+}
+
+std::vector<u8> VfsFile::ReadAllBytes() const {
+    return ReadBytes(GetSize());
+}
+
+bool VfsFile::WriteByte(u8 data, size_t offset) {
+    return Write(&data, 1, offset) == 1;
+}
+
+size_t VfsFile::WriteBytes(std::vector<u8> data, size_t offset) {
+    return Write(data.data(), data.size(), offset);
+}
+
+std::shared_ptr<VfsFile> VfsDirectory::GetFileRelative(const std::string& path) const {
+    auto vec = FileUtil::SplitPathComponents(path);
+    vec.erase(std::remove_if(vec.begin(), vec.end(), [](const auto& str) { return str.empty(); }),
+              vec.end());
+    if (vec.empty())
+        return nullptr;
+    if (vec.size() == 1)
+        return GetFile(vec[0]);
+    auto dir = GetSubdirectory(vec[0]);
+    for (size_t i = 1; i < vec.size() - 1; ++i) {
+        if (dir == nullptr)
+            return nullptr;
+        dir = dir->GetSubdirectory(vec[i]);
+    }
+    if (dir == nullptr)
+        return nullptr;
+    return dir->GetFile(vec.back());
+}
+
+std::shared_ptr<VfsFile> VfsDirectory::GetFileAbsolute(const std::string& path) const {
+    if (IsRoot())
+        return GetFileRelative(path);
+
+    return GetParentDirectory()->GetFileAbsolute(path);
+}
+
+std::shared_ptr<VfsDirectory> VfsDirectory::GetDirectoryRelative(const std::string& path) const {
+    auto vec = FileUtil::SplitPathComponents(path);
+    vec.erase(std::remove_if(vec.begin(), vec.end(), [](const auto& str) { return str.empty(); }),
+              vec.end());
+    if (vec.empty())
+        // return std::shared_ptr<VfsDirectory>(this);
+        return nullptr;
+    auto dir = GetSubdirectory(vec[0]);
+    for (size_t i = 1; i < vec.size(); ++i) {
+        dir = dir->GetSubdirectory(vec[i]);
+    }
+    return dir;
+}
+
+std::shared_ptr<VfsDirectory> VfsDirectory::GetDirectoryAbsolute(const std::string& path) const {
+    if (IsRoot())
+        return GetDirectoryRelative(path);
+
+    return GetParentDirectory()->GetDirectoryAbsolute(path);
+}
+
+std::shared_ptr<VfsFile> VfsDirectory::GetFile(const std::string& name) const {
+    const auto& files = GetFiles();
+    const auto iter = std::find_if(files.begin(), files.end(),
+                                   [&name](const auto& file1) { return name == file1->GetName(); });
+    return iter == files.end() ? nullptr : *iter;
+}
+
+std::shared_ptr<VfsDirectory> VfsDirectory::GetSubdirectory(const std::string& name) const {
+    const auto& subs = GetSubdirectories();
+    const auto iter = std::find_if(subs.begin(), subs.end(),
+                                   [&name](const auto& file1) { return name == file1->GetName(); });
+    return iter == subs.end() ? nullptr : *iter;
+}
+
+bool VfsDirectory::IsRoot() const {
+    return GetParentDirectory() == nullptr;
+}
+
+size_t VfsDirectory::GetSize() const {
+    const auto& files = GetFiles();
+    const auto file_total =
+        std::accumulate(files.begin(), files.end(), 0ull,
+                        [](const auto& f1, const auto& f2) { return f1 + f2->GetSize(); });
+
+    const auto& sub_dir = GetSubdirectories();
+    const auto subdir_total =
+        std::accumulate(sub_dir.begin(), sub_dir.end(), 0ull,
+                        [](const auto& f1, const auto& f2) { return f1 + f2->GetSize(); });
+
+    return file_total + subdir_total;
+}
+
+bool VfsDirectory::DeleteSubdirectoryRecursive(const std::string& name) {
+    auto dir = GetSubdirectory(name);
+    if (dir == nullptr)
+        return false;
+
+    bool success = true;
+    for (const auto& file : dir->GetFiles()) {
+        if (!DeleteFile(file->GetName()))
+            success = false;
+    }
+
+    for (const auto& sdir : dir->GetSubdirectories()) {
+        if (!dir->DeleteSubdirectoryRecursive(sdir->GetName()))
+            success = false;
+    }
+
+    return success;
+}
+
+bool VfsDirectory::Copy(const std::string& src, const std::string& dest) {
+    const auto f1 = GetFile(src);
+    auto f2 = CreateFile(dest);
+    if (f1 == nullptr || f2 == nullptr)
+        return false;
+
+    if (!f2->Resize(f1->GetSize())) {
+        DeleteFile(dest);
+        return false;
+    }
+
+    return f2->WriteBytes(f1->ReadAllBytes()) == f1->GetSize();
+}
+
+bool ReadOnlyVfsDirectory::IsWritable() const {
+    return false;
+}
+
+bool ReadOnlyVfsDirectory::IsReadable() const {
+    return true;
+}
+
+std::shared_ptr<VfsDirectory> ReadOnlyVfsDirectory::CreateSubdirectory(const std::string& name) {
+    return nullptr;
+}
+
+std::shared_ptr<VfsFile> ReadOnlyVfsDirectory::CreateFile(const std::string& name) {
+    return nullptr;
+}
+
+bool ReadOnlyVfsDirectory::DeleteSubdirectory(const std::string& name) {
+    return false;
+}
+
+bool ReadOnlyVfsDirectory::DeleteFile(const std::string& name) {
+    return false;
+}
+
+bool ReadOnlyVfsDirectory::Rename(const std::string& name) {
+    return false;
+}
+} // namespace FileSys

src/core/file_sys/vfs.h

@@ -0,0 +1,220 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+#include <string>
+#include <type_traits>
+#include <vector>
+#include "boost/optional.hpp"
+#include "common/common_types.h"
+#include "common/file_util.h"
+
+namespace FileSys {
+struct VfsFile;
+struct VfsDirectory;
+
+// Convenience typedefs to use VfsDirectory and VfsFile
+using VirtualDir = std::shared_ptr<FileSys::VfsDirectory>;
+using VirtualFile = std::shared_ptr<FileSys::VfsFile>;
+
+// A class representing a file in an abstract filesystem.
+struct VfsFile : NonCopyable {
+    virtual ~VfsFile();
+
+    // Retrieves the file name.
+    virtual std::string GetName() const = 0;
+    // Retrieves the extension of the file name.
+    virtual std::string GetExtension() const;
+    // Retrieves the size of the file.
+    virtual size_t GetSize() const = 0;
+    // Resizes the file to new_size. Returns whether or not the operation was successful.
+    virtual bool Resize(size_t new_size) = 0;
+    // Gets a pointer to the directory containing this file, returning nullptr if there is none.
+    virtual std::shared_ptr<VfsDirectory> GetContainingDirectory() const = 0;
+
+    // Returns whether or not the file can be written to.
+    virtual bool IsWritable() const = 0;
+    // Returns whether or not the file can be read from.
+    virtual bool IsReadable() const = 0;
+
+    // The primary method of reading from the file. Reads length bytes into data starting at offset
+    // into file. Returns number of bytes successfully read.
+    virtual size_t Read(u8* data, size_t length, size_t offset = 0) const = 0;
+    // The primary method of writing to the file. Writes length bytes from data starting at offset
+    // into file. Returns number of bytes successfully written.
+    virtual size_t Write(const u8* data, size_t length, size_t offset = 0) = 0;
+
+    // Reads exactly one byte at the offset provided, returning boost::none on error.
+    virtual boost::optional<u8> ReadByte(size_t offset = 0) const;
+    // Reads size bytes starting at offset in file into a vector.
+    virtual std::vector<u8> ReadBytes(size_t size, size_t offset = 0) const;
+    // Reads all the bytes from the file into a vector. Equivalent to 'file->Read(file->GetSize(),
+    // 0)'
+    virtual std::vector<u8> ReadAllBytes() const;
+
+    // Reads an array of type T, size number_elements starting at offset.
+    // Returns the number of bytes (sizeof(T)*number_elements) read successfully.
+    template <typename T>
+    size_t ReadArray(T* data, size_t number_elements, size_t offset = 0) const {
+        static_assert(std::is_trivially_copyable<T>::value,
+                      "Data type must be trivially copyable.");
+
+        return Read(reinterpret_cast<u8*>(data), number_elements * sizeof(T), offset);
+    }
+
+    // Reads size bytes into the memory starting at data starting at offset into the file.
+    // Returns the number of bytes read successfully.
+    template <typename T>
+    size_t ReadBytes(T* data, size_t size, size_t offset = 0) const {
+        static_assert(std::is_trivially_copyable<T>::value,
+                      "Data type must be trivially copyable.");
+        return Read(reinterpret_cast<u8*>(data), size, offset);
+    }
+
+    // Reads one object of type T starting at offset in file.
+    // Returns the number of bytes read successfully (sizeof(T)).
+    template <typename T>
+    size_t ReadObject(T* data, size_t offset = 0) const {
+        static_assert(std::is_trivially_copyable<T>::value,
+                      "Data type must be trivially copyable.");
+        return Read(reinterpret_cast<u8*>(data), sizeof(T), offset);
+    }
+
+    // Writes exactly one byte to offset in file and retuns whether or not the byte was written
+    // successfully.
+    virtual bool WriteByte(u8 data, size_t offset = 0);
+    // Writes a vector of bytes to offset in file and returns the number of bytes successfully
+    // written.
+    virtual size_t WriteBytes(std::vector<u8> data, size_t offset = 0);
+
+    // Writes an array of type T, size number_elements to offset in file.
+    // Returns the number of bytes (sizeof(T)*number_elements) written successfully.
+    template <typename T>
+    size_t WriteArray(T* data, size_t number_elements, size_t offset = 0) {
+        static_assert(std::is_trivially_copyable<T>::value,
+                      "Data type must be trivially copyable.");
+
+        return Write(data, number_elements * sizeof(T), offset);
+    }
+
+    // Writes size bytes starting at memory location data to offset in file.
+    // Returns the number of bytes written successfully.
+    template <typename T>
+    size_t WriteBytes(T* data, size_t size, size_t offset = 0) {
+        static_assert(std::is_trivially_copyable<T>::value,
+                      "Data type must be trivially copyable.");
+        return Write(reinterpret_cast<u8*>(data), size, offset);
+    }
+
+    // Writes one object of type T to offset in file.
+    // Returns the number of bytes written successfully (sizeof(T)).
+    template <typename T>
+    size_t WriteObject(const T& data, size_t offset = 0) {
+        static_assert(std::is_trivially_copyable<T>::value,
+                      "Data type must be trivially copyable.");
+        return Write(&data, sizeof(T), offset);
+    }
+
+    // Renames the file to name. Returns whether or not the operation was successsful.
+    virtual bool Rename(const std::string& name) = 0;
+};
+
+// A class representing a directory in an abstract filesystem.
+struct VfsDirectory : NonCopyable {
+    virtual ~VfsDirectory();
+
+    // Retrives the file located at path as if the current directory was root. Returns nullptr if
+    // not found.
+    virtual std::shared_ptr<VfsFile> GetFileRelative(const std::string& path) const;
+    // Calls GetFileRelative(path) on the root of the current directory.
+    virtual std::shared_ptr<VfsFile> GetFileAbsolute(const std::string& path) const;
+
+    // Retrives the directory located at path as if the current directory was root. Returns nullptr
+    // if not found.
+    virtual std::shared_ptr<VfsDirectory> GetDirectoryRelative(const std::string& path) const;
+    // Calls GetDirectoryRelative(path) on the root of the current directory.
+    virtual std::shared_ptr<VfsDirectory> GetDirectoryAbsolute(const std::string& path) const;
+
+    // Returns a vector containing all of the files in this directory.
+    virtual std::vector<std::shared_ptr<VfsFile>> GetFiles() const = 0;
+    // Returns the file with filename matching name. Returns nullptr if directory dosen't have a
+    // file with name.
+    virtual std::shared_ptr<VfsFile> GetFile(const std::string& name) const;
+
+    // Returns a vector containing all of the subdirectories in this directory.
+    virtual std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const = 0;
+    // Returns the directory with name matching name. Returns nullptr if directory dosen't have a
+    // directory with name.
+    virtual std::shared_ptr<VfsDirectory> GetSubdirectory(const std::string& name) const;
+
+    // Returns whether or not the directory can be written to.
+    virtual bool IsWritable() const = 0;
+    // Returns whether of not the directory can be read from.
+    virtual bool IsReadable() const = 0;
+
+    // Returns whether or not the directory is the root of the current file tree.
+    virtual bool IsRoot() const;
+
+    // Returns the name of the directory.
+    virtual std::string GetName() const = 0;
+    // Returns the total size of all files and subdirectories in this directory.
+    virtual size_t GetSize() const;
+    // Returns the parent directory of this directory. Returns nullptr if this directory is root or
+    // has no parent.
+    virtual std::shared_ptr<VfsDirectory> GetParentDirectory() const = 0;
+
+    // Creates a new subdirectory with name name. Returns a pointer to the new directory or nullptr
+    // if the operation failed.
+    virtual std::shared_ptr<VfsDirectory> CreateSubdirectory(const std::string& name) = 0;
+    // Creates a new file with name name. Returns a pointer to the new file or nullptr if the
+    // operation failed.
+    virtual std::shared_ptr<VfsFile> CreateFile(const std::string& name) = 0;
+
+    // Deletes the subdirectory with name and returns true on success.
+    virtual bool DeleteSubdirectory(const std::string& name) = 0;
+    // Deletes all subdirectories and files of subdirectory with name recirsively and then deletes
+    // the subdirectory. Returns true on success.
+    virtual bool DeleteSubdirectoryRecursive(const std::string& name);
+    // Returnes whether or not the file with name name was deleted successfully.
+    virtual bool DeleteFile(const std::string& name) = 0;
+
+    // Returns whether or not this directory was renamed to name.
+    virtual bool Rename(const std::string& name) = 0;
+
+    // Returns whether or not the file with name src was successfully copied to a new file with name
+    // dest.
+    virtual bool Copy(const std::string& src, const std::string& dest);
+
+    // Interprets the file with name file instead as a directory of type directory.
+    // The directory must have a constructor that takes a single argument of type
+    // std::shared_ptr<VfsFile>. Allows to reinterpret container files (i.e NCA, zip, XCI, etc) as a
+    // subdirectory in one call.
+    template <typename Directory>
+    bool InterpretAsDirectory(const std::string& file) {
+        auto file_p = GetFile(file);
+        if (file_p == nullptr)
+            return false;
+        return ReplaceFileWithSubdirectory(file, std::make_shared<Directory>(file_p));
+    }
+
+protected:
+    // Backend for InterpretAsDirectory.
+    // Removes all references to file and adds a reference to dir in the directory's implementation.
+    virtual bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) = 0;
+};
+
+// A convenience partial-implementation of VfsDirectory that stubs out methods that should only work
+// if writable. This is to avoid redundant empty methods everywhere.
+struct ReadOnlyVfsDirectory : public VfsDirectory {
+    bool IsWritable() const override;
+    bool IsReadable() const override;
+    std::shared_ptr<VfsDirectory> CreateSubdirectory(const std::string& name) override;
+    std::shared_ptr<VfsFile> CreateFile(const std::string& name) override;
+    bool DeleteSubdirectory(const std::string& name) override;
+    bool DeleteFile(const std::string& name) override;
+    bool Rename(const std::string& name) override;
+};
+} // namespace FileSys

src/core/file_sys/vfs_offset.cpp

@@ -0,0 +1,92 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "core/file_sys/vfs_offset.h"
+
+namespace FileSys {
+
+OffsetVfsFile::OffsetVfsFile(std::shared_ptr<VfsFile> file_, size_t size_, size_t offset_,
+                             const std::string& name_)
+    : file(file_), offset(offset_), size(size_), name(name_) {}
+
+std::string OffsetVfsFile::GetName() const {
+    return name.empty() ? file->GetName() : name;
+}
+
+size_t OffsetVfsFile::GetSize() const {
+    return size;
+}
+
+bool OffsetVfsFile::Resize(size_t new_size) {
+    if (offset + new_size < file->GetSize()) {
+        size = new_size;
+    } else {
+        auto res = file->Resize(offset + new_size);
+        if (!res)
+            return false;
+        size = new_size;
+    }
+
+    return true;
+}
+
+std::shared_ptr<VfsDirectory> OffsetVfsFile::GetContainingDirectory() const {
+    return file->GetContainingDirectory();
+}
+
+bool OffsetVfsFile::IsWritable() const {
+    return file->IsWritable();
+}
+
+bool OffsetVfsFile::IsReadable() const {
+    return file->IsReadable();
+}
+
+size_t OffsetVfsFile::Read(u8* data, size_t length, size_t r_offset) const {
+    return file->Read(data, TrimToFit(length, r_offset), offset + r_offset);
+}
+
+size_t OffsetVfsFile::Write(const u8* data, size_t length, size_t r_offset) {
+    return file->Write(data, TrimToFit(length, r_offset), offset + r_offset);
+}
+
+boost::optional<u8> OffsetVfsFile::ReadByte(size_t r_offset) const {
+    if (r_offset < size)
+        return file->ReadByte(offset + r_offset);
+
+    return boost::none;
+}
+
+std::vector<u8> OffsetVfsFile::ReadBytes(size_t r_size, size_t r_offset) const {
+    return file->ReadBytes(TrimToFit(r_size, r_offset), offset + r_offset);
+}
+
+std::vector<u8> OffsetVfsFile::ReadAllBytes() const {
+    return file->ReadBytes(size, offset);
+}
+
+bool OffsetVfsFile::WriteByte(u8 data, size_t r_offset) {
+    if (r_offset < size)
+        return file->WriteByte(data, offset + r_offset);
+
+    return false;
+}
+
+size_t OffsetVfsFile::WriteBytes(std::vector<u8> data, size_t r_offset) {
+    return file->Write(data.data(), TrimToFit(data.size(), r_offset), offset + r_offset);
+}
+
+bool OffsetVfsFile::Rename(const std::string& name) {
+    return file->Rename(name);
+}
+
+size_t OffsetVfsFile::GetOffset() const {
+    return offset;
+}
+
+size_t OffsetVfsFile::TrimToFit(size_t r_size, size_t r_offset) const {
+    return std::max<size_t>(std::min<size_t>(size - r_offset, r_size), 0);
+}
+
+} // namespace FileSys

src/core/file_sys/vfs_offset.h

@@ -0,0 +1,46 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/file_sys/vfs.h"
+
+namespace FileSys {
+
+// An implementation of VfsFile that wraps around another VfsFile at a certain offset.
+// Similar to seeking to an offset.
+// If the file is writable, operations that would write past the end of the offset file will expand
+// the size of this wrapper.
+struct OffsetVfsFile : public VfsFile {
+    OffsetVfsFile(std::shared_ptr<VfsFile> file, size_t size, size_t offset = 0,
+                  const std::string& new_name = "");
+
+    std::string GetName() const override;
+    size_t GetSize() const override;
+    bool Resize(size_t new_size) override;
+    std::shared_ptr<VfsDirectory> GetContainingDirectory() const override;
+    bool IsWritable() const override;
+    bool IsReadable() const override;
+    size_t Read(u8* data, size_t length, size_t offset) const override;
+    size_t Write(const u8* data, size_t length, size_t offset) override;
+    boost::optional<u8> ReadByte(size_t offset) const override;
+    std::vector<u8> ReadBytes(size_t size, size_t offset) const override;
+    std::vector<u8> ReadAllBytes() const override;
+    bool WriteByte(u8 data, size_t offset) override;
+    size_t WriteBytes(std::vector<u8> data, size_t offset) override;
+
+    bool Rename(const std::string& name) override;
+
+    size_t GetOffset() const;
+
+private:
+    size_t TrimToFit(size_t r_size, size_t r_offset) const;
+
+    std::shared_ptr<VfsFile> file;
+    size_t offset;
+    size_t size;
+    std::string name;
+};
+
+} // namespace FileSys

src/core/file_sys/vfs_real.cpp

@@ -0,0 +1,168 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/common_paths.h"
+#include "common/logging/log.h"
+#include "core/file_sys/vfs_real.h"
+
+namespace FileSys {
+
+static std::string PermissionsToCharArray(Mode perms) {
+    std::string out;
+    switch (perms) {
+    case Mode::Read:
+        out += "r";
+        break;
+    case Mode::Write:
+        out += "r+";
+        break;
+    case Mode::Append:
+        out += "a";
+        break;
+    }
+    return out + "b";
+}
+
+RealVfsFile::RealVfsFile(const std::string& path_, Mode perms_)
+    : backing(path_, PermissionsToCharArray(perms_).c_str()), path(path_),
+      parent_path(FileUtil::GetParentPath(path_)),
+      path_components(FileUtil::SplitPathComponents(path_)),
+      parent_components(FileUtil::SliceVector(path_components, 0, path_components.size() - 1)),
+      perms(perms_) {}
+
+std::string RealVfsFile::GetName() const {
+    return path_components.back();
+}
+
+size_t RealVfsFile::GetSize() const {
+    return backing.GetSize();
+}
+
+bool RealVfsFile::Resize(size_t new_size) {
+    return backing.Resize(new_size);
+}
+
+std::shared_ptr<VfsDirectory> RealVfsFile::GetContainingDirectory() const {
+    return std::make_shared<RealVfsDirectory>(parent_path, perms);
+}
+
+bool RealVfsFile::IsWritable() const {
+    return perms == Mode::Append || perms == Mode::Write;
+}
+
+bool RealVfsFile::IsReadable() const {
+    return perms == Mode::Read || perms == Mode::Write;
+}
+
+size_t RealVfsFile::Read(u8* data, size_t length, size_t offset) const {
+    if (!backing.Seek(offset, SEEK_SET))
+        return 0;
+    return backing.ReadBytes(data, length);
+}
+
+size_t RealVfsFile::Write(const u8* data, size_t length, size_t offset) {
+    if (!backing.Seek(offset, SEEK_SET))
+        return 0;
+    return backing.WriteBytes(data, length);
+}
+
+bool RealVfsFile::Rename(const std::string& name) {
+    const auto out = FileUtil::Rename(GetName(), name);
+    path = parent_path + DIR_SEP + name;
+    path_components = parent_components;
+    path_components.push_back(name);
+    backing = FileUtil::IOFile(path, PermissionsToCharArray(perms).c_str());
+    return out;
+}
+
+RealVfsDirectory::RealVfsDirectory(const std::string& path_, Mode perms_)
+    : path(FileUtil::RemoveTrailingSlash(path_)), parent_path(FileUtil::GetParentPath(path)),
+      path_components(FileUtil::SplitPathComponents(path)),
+      parent_components(FileUtil::SliceVector(path_components, 0, path_components.size() - 1)),
+      perms(perms_) {
+    if (!FileUtil::Exists(path) && (perms == Mode::Write || perms == Mode::Append))
+        FileUtil::CreateDir(path);
+    unsigned size;
+    if (perms != Mode::Append) {
+        FileUtil::ForeachDirectoryEntry(
+            &size, path,
+            [this](unsigned* entries_out, const std::string& directory,
+                   const std::string& filename) {
+                std::string full_path = directory + DIR_SEP + filename;
+                if (FileUtil::IsDirectory(full_path))
+                    subdirectories.emplace_back(
+                        std::make_shared<RealVfsDirectory>(full_path, perms));
+                else
+                    files.emplace_back(std::make_shared<RealVfsFile>(full_path, perms));
+                return true;
+            });
+    }
+}
+
+std::vector<std::shared_ptr<VfsFile>> RealVfsDirectory::GetFiles() const {
+    return std::vector<std::shared_ptr<VfsFile>>(files);
+}
+
+std::vector<std::shared_ptr<VfsDirectory>> RealVfsDirectory::GetSubdirectories() const {
+    return std::vector<std::shared_ptr<VfsDirectory>>(subdirectories);
+}
+
+bool RealVfsDirectory::IsWritable() const {
+    return perms == Mode::Write || perms == Mode::Append;
+}
+
+bool RealVfsDirectory::IsReadable() const {
+    return perms == Mode::Read || perms == Mode::Write;
+}
+
+std::string RealVfsDirectory::GetName() const {
+    return path_components.back();
+}
+
+std::shared_ptr<VfsDirectory> RealVfsDirectory::GetParentDirectory() const {
+    if (path_components.size() <= 1)
+        return nullptr;
+
+    return std::make_shared<RealVfsDirectory>(parent_path, perms);
+}
+
+std::shared_ptr<VfsDirectory> RealVfsDirectory::CreateSubdirectory(const std::string& name) {
+    if (!FileUtil::CreateDir(path + DIR_SEP + name))
+        return nullptr;
+    subdirectories.emplace_back(std::make_shared<RealVfsDirectory>(path + DIR_SEP + name, perms));
+    return subdirectories.back();
+}
+
+std::shared_ptr<VfsFile> RealVfsDirectory::CreateFile(const std::string& name) {
+    if (!FileUtil::CreateEmptyFile(path + DIR_SEP + name))
+        return nullptr;
+    files.emplace_back(std::make_shared<RealVfsFile>(path + DIR_SEP + name, perms));
+    return files.back();
+}
+
+bool RealVfsDirectory::DeleteSubdirectory(const std::string& name) {
+    return FileUtil::DeleteDirRecursively(path + DIR_SEP + name);
+}
+
+bool RealVfsDirectory::DeleteFile(const std::string& name) {
+    return FileUtil::Delete(path + DIR_SEP + name);
+}
+
+bool RealVfsDirectory::Rename(const std::string& name) {
+    return FileUtil::Rename(path, parent_path + DIR_SEP + name);
+}
+
+bool RealVfsDirectory::ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) {
+    auto iter = std::find(files.begin(), files.end(), file);
+    if (iter == files.end())
+        return false;
+
+    files[iter - files.begin()] = files.back();
+    files.pop_back();
+
+    subdirectories.emplace_back(dir);
+
+    return true;
+}
+} // namespace FileSys

src/core/file_sys/vfs_real.h

@@ -0,0 +1,65 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/file_util.h"
+#include "core/file_sys/filesystem.h"
+#include "core/file_sys/vfs.h"
+
+namespace FileSys {
+
+// An implmentation of VfsFile that represents a file on the user's computer.
+struct RealVfsFile : public VfsFile {
+    RealVfsFile(const std::string& name, Mode perms = Mode::Read);
+
+    std::string GetName() const override;
+    size_t GetSize() const override;
+    bool Resize(size_t new_size) override;
+    std::shared_ptr<VfsDirectory> GetContainingDirectory() const override;
+    bool IsWritable() const override;
+    bool IsReadable() const override;
+    size_t Read(u8* data, size_t length, size_t offset) const override;
+    size_t Write(const u8* data, size_t length, size_t offset) override;
+    bool Rename(const std::string& name) override;
+
+private:
+    FileUtil::IOFile backing;
+    std::string path;
+    std::string parent_path;
+    std::vector<std::string> path_components;
+    std::vector<std::string> parent_components;
+    Mode perms;
+};
+
+// An implementation of VfsDirectory that represents a directory on the user's computer.
+struct RealVfsDirectory : public VfsDirectory {
+    RealVfsDirectory(const std::string& path, Mode perms);
+
+    std::vector<std::shared_ptr<VfsFile>> GetFiles() const override;
+    std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const override;
+    bool IsWritable() const override;
+    bool IsReadable() const override;
+    std::string GetName() const override;
+    std::shared_ptr<VfsDirectory> GetParentDirectory() const override;
+    std::shared_ptr<VfsDirectory> CreateSubdirectory(const std::string& name) override;
+    std::shared_ptr<VfsFile> CreateFile(const std::string& name) override;
+    bool DeleteSubdirectory(const std::string& name) override;
+    bool DeleteFile(const std::string& name) override;
+    bool Rename(const std::string& name) override;
+
+protected:
+    bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) override;
+
+private:
+    std::string path;
+    std::string parent_path;
+    std::vector<std::string> path_components;
+    std::vector<std::string> parent_components;
+    Mode perms;
+    std::vector<std::shared_ptr<VfsFile>> files;
+    std::vector<std::shared_ptr<VfsDirectory>> subdirectories;
+};
+
+} // namespace FileSys

src/core/frontend/input.h

@@ -59,7 +59,7 @@ template <typename InputDeviceType>
 void RegisterFactory(const std::string& name, std::shared_ptr<Factory<InputDeviceType>> factory) {
     auto pair = std::make_pair(name, std::move(factory));
     if (!Impl::FactoryList<InputDeviceType>::list.insert(std::move(pair)).second) {
-        NGLOG_ERROR(Input, "Factory '{}' already registered", name);
+        LOG_ERROR(Input, "Factory '{}' already registered", name);
     }
 }
 
@@ -71,7 +71,7 @@ void RegisterFactory(const std::string& name, std::shared_ptr<Factory<InputDevic
 template <typename InputDeviceType>
 void UnregisterFactory(const std::string& name) {
     if (Impl::FactoryList<InputDeviceType>::list.erase(name) == 0) {
-        NGLOG_ERROR(Input, "Factory '{}' not registered", name);
+        LOG_ERROR(Input, "Factory '{}' not registered", name);
     }
 }
 
@@ -88,7 +88,7 @@ std::unique_ptr<InputDeviceType> CreateDevice(const std::string& params) {
     const auto pair = factory_list.find(engine);
     if (pair == factory_list.end()) {
         if (engine != "null") {
-            NGLOG_ERROR(Input, "Unknown engine name: {}", engine);
+            LOG_ERROR(Input, "Unknown engine name: {}", engine);
         }
         return std::make_unique<InputDeviceType>();
     }

src/core/gdbstub/gdbstub.cpp

@@ -32,9 +32,13 @@
 
 #include "common/logging/log.h"
 #include "common/string_util.h"
+#include "common/swap.h"
 #include "core/arm/arm_interface.h"
 #include "core/core.h"
+#include "core/core_cpu.h"
 #include "core/gdbstub/gdbstub.h"
+#include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/scheduler.h"
 #include "core/loader/loader.h"
 #include "core/memory.h"
 
@@ -137,15 +141,17 @@ static u8 command_buffer[GDB_BUFFER_SIZE];
 static u32 command_length;
 
 static u32 latest_signal = 0;
-static bool step_break = false;
 static bool memory_break = false;
 
+static Kernel::Thread* current_thread = nullptr;
+
 // Binding to a port within the reserved ports range (0-1023) requires root permissions,
 // so default to a port outside of that range.
 static u16 gdbstub_port = 24689;
 
 static bool halt_loop = true;
 static bool step_loop = false;
+static bool send_trap = false;
 
 // If set to false, the server will never be started and no
 // gdbstub-related functions will be executed.
@@ -165,6 +171,53 @@ static std::map<u64, Breakpoint> breakpoints_execute;
 static std::map<u64, Breakpoint> breakpoints_read;
 static std::map<u64, Breakpoint> breakpoints_write;
 
+static Kernel::Thread* FindThreadById(int id) {
+    for (int core = 0; core < Core::NUM_CPU_CORES; core++) {
+        auto threads = Core::System::GetInstance().Scheduler(core)->GetThreadList();
+        for (auto thread : threads) {
+            if (thread->GetThreadId() == id) {
+                current_thread = thread.get();
+                return current_thread;
+            }
+        }
+    }
+    return nullptr;
+}
+
+static u64 RegRead(int id, Kernel::Thread* thread = nullptr) {
+    if (!thread) {
+        return 0;
+    }
+
+    if (id < SP_REGISTER) {
+        return thread->context.cpu_registers[id];
+    } else if (id == SP_REGISTER) {
+        return thread->context.sp;
+    } else if (id == PC_REGISTER) {
+        return thread->context.pc;
+    } else if (id == CPSR_REGISTER) {
+        return thread->context.cpsr;
+    } else {
+        return 0;
+    }
+}
+
+static void RegWrite(int id, u64 val, Kernel::Thread* thread = nullptr) {
+    if (!thread) {
+        return;
+    }
+
+    if (id < SP_REGISTER) {
+        thread->context.cpu_registers[id] = val;
+    } else if (id == SP_REGISTER) {
+        thread->context.sp = val;
+    } else if (id == PC_REGISTER) {
+        thread->context.pc = val;
+    } else if (id == CPSR_REGISTER) {
+        thread->context.cpsr = val;
+    }
+}
+
 /**
  * Turns hex string character into the equivalent byte.
  *
@@ -179,7 +232,7 @@ static u8 HexCharToValue(u8 hex) {
         return hex - 'A' + 0xA;
     }
 
-    NGLOG_ERROR(Debug_GDBStub, "Invalid nibble: {} ({:02X})", hex, hex);
+    LOG_ERROR(Debug_GDBStub, "Invalid nibble: {} ({:02X})", hex, hex);
     return 0;
 }
 
@@ -193,7 +246,7 @@ static u8 NibbleToHex(u8 n) {
     if (n < 0xA) {
         return '0' + n;
     } else {
-        return 'A' + n - 0xA;
+        return 'a' + n - 0xA;
     }
 }
 
@@ -319,7 +372,7 @@ static u8 ReadByte() {
     u8 c;
     size_t received_size = recv(gdbserver_socket, reinterpret_cast<char*>(&c), 1, MSG_WAITALL);
     if (received_size != 1) {
-        NGLOG_ERROR(Debug_GDBStub, "recv failed: {}", received_size);
+        LOG_ERROR(Debug_GDBStub, "recv failed: {}", received_size);
         Shutdown();
     }
 
@@ -360,8 +413,8 @@ static void RemoveBreakpoint(BreakpointType type, PAddr addr) {
 
     auto bp = p.find(static_cast<u64>(addr));
     if (bp != p.end()) {
-        NGLOG_DEBUG(Debug_GDBStub, "gdb: removed a breakpoint: {:016X} bytes at {:016X} of type {}",
-                    bp->second.len, bp->second.addr, static_cast<int>(type));
+        LOG_DEBUG(Debug_GDBStub, "gdb: removed a breakpoint: {:016X} bytes at {:016X} of type {}",
+                  bp->second.len, bp->second.addr, static_cast<int>(type));
         p.erase(static_cast<u64>(addr));
     }
 }
@@ -406,10 +459,10 @@ bool CheckBreakpoint(PAddr addr, BreakpointType type) {
         }
 
         if (bp->second.active && (addr >= bp->second.addr && addr < bp->second.addr + len)) {
-            NGLOG_DEBUG(Debug_GDBStub,
-                        "Found breakpoint type {} @ {:016X}, range: {:016X}"
-                        " - {:016X} ({:X} bytes)",
-                        static_cast<int>(type), addr, bp->second.addr, bp->second.addr + len, len);
+            LOG_DEBUG(Debug_GDBStub,
+                      "Found breakpoint type {} @ {:016X}, range: {:016X}"
+                      " - {:016X} ({:X} bytes)",
+                      static_cast<int>(type), addr, bp->second.addr, bp->second.addr + len, len);
             return true;
         }
     }
@@ -425,7 +478,7 @@ bool CheckBreakpoint(PAddr addr, BreakpointType type) {
 static void SendPacket(const char packet) {
     size_t sent_size = send(gdbserver_socket, &packet, 1, 0);
     if (sent_size != 1) {
-        NGLOG_ERROR(Debug_GDBStub, "send failed");
+        LOG_ERROR(Debug_GDBStub, "send failed");
     }
 }
 
@@ -439,11 +492,13 @@ static void SendReply(const char* reply) {
         return;
     }
 
+    LOG_DEBUG(Debug_GDBStub, "Reply: {}", reply);
+
     memset(command_buffer, 0, sizeof(command_buffer));
 
     command_length = static_cast<u32>(strlen(reply));
     if (command_length + 4 > sizeof(command_buffer)) {
-        NGLOG_ERROR(Debug_GDBStub, "command_buffer overflow in SendReply");
+        LOG_ERROR(Debug_GDBStub, "command_buffer overflow in SendReply");
         return;
     }
 
@@ -460,7 +515,7 @@ static void SendReply(const char* reply) {
     while (left > 0) {
         int sent_size = send(gdbserver_socket, reinterpret_cast<char*>(ptr), left, 0);
         if (sent_size < 0) {
-            NGLOG_ERROR(Debug_GDBStub, "gdb: send failed");
+            LOG_ERROR(Debug_GDBStub, "gdb: send failed");
             return Shutdown();
         }
 
@@ -471,7 +526,7 @@ static void SendReply(const char* reply) {
 
 /// Handle query command from gdb client.
 static void HandleQuery() {
-    NGLOG_DEBUG(Debug_GDBStub, "gdb: query '{}'", command_buffer + 1);
+    LOG_DEBUG(Debug_GDBStub, "gdb: query '{}'", command_buffer + 1);
 
     const char* query = reinterpret_cast<const char*>(command_buffer + 1);
 
@@ -483,6 +538,22 @@ static void HandleQuery() {
     } else if (strncmp(query, "Xfer:features:read:target.xml:",
                        strlen("Xfer:features:read:target.xml:")) == 0) {
         SendReply(target_xml);
+    } else if (strncmp(query, "Offsets", strlen("Offsets")) == 0) {
+        std::string buffer = fmt::format("TextSeg={:0x}", Memory::PROCESS_IMAGE_VADDR);
+        SendReply(buffer.c_str());
+    } else if (strncmp(query, "fThreadInfo", strlen("fThreadInfo")) == 0) {
+        std::string val = "m";
+        for (int core = 0; core < Core::NUM_CPU_CORES; core++) {
+            auto threads = Core::System::GetInstance().Scheduler(core)->GetThreadList();
+            for (auto thread : threads) {
+                val += fmt::format("{:x}", thread->GetThreadId());
+                val += ",";
+            }
+        }
+        val.pop_back();
+        SendReply(val.c_str());
+    } else if (strncmp(query, "sThreadInfo", strlen("sThreadInfo")) == 0) {
+        SendReply("l");
     } else {
         SendReply("");
     }
@@ -490,11 +561,40 @@ static void HandleQuery() {
 
 /// Handle set thread command from gdb client.
 static void HandleSetThread() {
-    if (memcmp(command_buffer, "Hg0", 3) == 0 || memcmp(command_buffer, "Hc-1", 4) == 0 ||
-        memcmp(command_buffer, "Hc0", 4) == 0 || memcmp(command_buffer, "Hc1", 4) == 0) {
-        return SendReply("OK");
+    if (memcmp(command_buffer, "Hc", 2) == 0 || memcmp(command_buffer, "Hg", 2) == 0) {
+        int thread_id = -1;
+        if (command_buffer[2] != '-') {
+            thread_id = static_cast<int>(HexToInt(
+                command_buffer + 2,
+                command_length - 2 /*strlen(reinterpret_cast<char*>(command_buffer) + 2)*/));
+        }
+        if (thread_id >= 1) {
+            current_thread = FindThreadById(thread_id);
+        }
+        if (!current_thread) {
+            thread_id = 1;
+            current_thread = FindThreadById(thread_id);
+        }
+        if (current_thread) {
+            SendReply("OK");
+            return;
+        }
     }
+    SendReply("E01");
+}
 
+/// Handle thread alive command from gdb client.
+static void HandleThreadAlive() {
+    int thread_id = static_cast<int>(
+        HexToInt(command_buffer + 1,
+                 command_length - 1 /*strlen(reinterpret_cast<char*>(command_buffer) + 1)*/));
+    if (thread_id == 0) {
+        thread_id = 1;
+    }
+    if (FindThreadById(thread_id)) {
+        SendReply("OK");
+        return;
+    }
     SendReply("E01");
 }
 
@@ -503,15 +603,24 @@ static void HandleSetThread() {
  *
  * @param signal Signal to be sent to client.
  */
-static void SendSignal(u32 signal) {
+static void SendSignal(Kernel::Thread* thread, u32 signal, bool full = true) {
     if (gdbserver_socket == -1) {
         return;
     }
 
     latest_signal = signal;
 
-    std::string buffer = fmt::format("T{:02x}", latest_signal);
-    NGLOG_DEBUG(Debug_GDBStub, "Response: {}", buffer);
+    std::string buffer;
+    if (full) {
+        buffer = fmt::format("T{:02x}{:02x}:{:016x};{:02x}:{:016x};", latest_signal, PC_REGISTER,
+                             Common::swap64(RegRead(PC_REGISTER, thread)), SP_REGISTER,
+                             Common::swap64(RegRead(SP_REGISTER, thread)));
+    } else {
+        buffer = fmt::format("T{:02x};", latest_signal);
+    }
+
+    buffer += fmt::format("thread:{:x};", thread->GetThreadId());
+
     SendReply(buffer.c_str());
 }
 
@@ -525,18 +634,18 @@ static void ReadCommand() {
         // ignore ack
         return;
     } else if (c == 0x03) {
-        NGLOG_INFO(Debug_GDBStub, "gdb: found break command");
+        LOG_INFO(Debug_GDBStub, "gdb: found break command");
         halt_loop = true;
-        SendSignal(SIGTRAP);
+        SendSignal(current_thread, SIGTRAP);
         return;
     } else if (c != GDB_STUB_START) {
-        NGLOG_DEBUG(Debug_GDBStub, "gdb: read invalid byte {:02X}", c);
+        LOG_DEBUG(Debug_GDBStub, "gdb: read invalid byte {:02X}", c);
         return;
     }
 
     while ((c = ReadByte()) != GDB_STUB_END) {
         if (command_length >= sizeof(command_buffer)) {
-            NGLOG_ERROR(Debug_GDBStub, "gdb: command_buffer overflow");
+            LOG_ERROR(Debug_GDBStub, "gdb: command_buffer overflow");
             SendPacket(GDB_STUB_NACK);
             return;
         }
@@ -549,10 +658,9 @@ static void ReadCommand() {
     u8 checksum_calculated = CalculateChecksum(command_buffer, command_length);
 
     if (checksum_received != checksum_calculated) {
-        NGLOG_ERROR(
-            Debug_GDBStub,
-            "gdb: invalid checksum: calculated {:02X} and read {:02X} for ${}# (length: {})",
-            checksum_calculated, checksum_received, command_buffer, command_length);
+        LOG_ERROR(Debug_GDBStub,
+                  "gdb: invalid checksum: calculated {:02X} and read {:02X} for ${}# (length: {})",
+                  checksum_calculated, checksum_received, command_buffer, command_length);
 
         command_length = 0;
 
@@ -579,7 +687,7 @@ static bool IsDataAvailable() {
     t.tv_usec = 0;
 
     if (select(gdbserver_socket + 1, &fd_socket, nullptr, nullptr, &t) < 0) {
-        NGLOG_ERROR(Debug_GDBStub, "select failed");
+        LOG_ERROR(Debug_GDBStub, "select failed");
         return false;
     }
 
@@ -598,11 +706,11 @@ static void ReadRegister() {
     }
 
     if (id <= SP_REGISTER) {
-        LongToGdbHex(reply, Core::CurrentArmInterface().GetReg(static_cast<int>(id)));
+        LongToGdbHex(reply, RegRead(id, current_thread));
     } else if (id == PC_REGISTER) {
-        LongToGdbHex(reply, Core::CurrentArmInterface().GetPC());
+        LongToGdbHex(reply, RegRead(id, current_thread));
     } else if (id == CPSR_REGISTER) {
-        IntToGdbHex(reply, Core::CurrentArmInterface().GetCPSR());
+        IntToGdbHex(reply, (u32)RegRead(id, current_thread));
     } else {
         return SendReply("E01");
     }
@@ -618,16 +726,16 @@ static void ReadRegisters() {
     u8* bufptr = buffer;
 
     for (int reg = 0; reg <= SP_REGISTER; reg++) {
-        LongToGdbHex(bufptr + reg * 16, Core::CurrentArmInterface().GetReg(reg));
+        LongToGdbHex(bufptr + reg * 16, RegRead(reg, current_thread));
     }
 
     bufptr += (32 * 16);
 
-    LongToGdbHex(bufptr, Core::CurrentArmInterface().GetPC());
+    LongToGdbHex(bufptr, RegRead(PC_REGISTER, current_thread));
 
     bufptr += 16;
 
-    IntToGdbHex(bufptr, Core::CurrentArmInterface().GetCPSR());
+    IntToGdbHex(bufptr, (u32)RegRead(CPSR_REGISTER, current_thread));
 
     bufptr += 8;
 
@@ -646,11 +754,11 @@ static void WriteRegister() {
     }
 
     if (id <= SP_REGISTER) {
-        Core::CurrentArmInterface().SetReg(id, GdbHexToLong(buffer_ptr));
+        RegWrite(id, GdbHexToLong(buffer_ptr), current_thread);
     } else if (id == PC_REGISTER) {
-        Core::CurrentArmInterface().SetPC(GdbHexToLong(buffer_ptr));
+        RegWrite(id, GdbHexToLong(buffer_ptr), current_thread);
     } else if (id == CPSR_REGISTER) {
-        Core::CurrentArmInterface().SetCPSR(GdbHexToInt(buffer_ptr));
+        RegWrite(id, GdbHexToInt(buffer_ptr), current_thread);
     } else {
         return SendReply("E01");
     }
@@ -667,11 +775,11 @@ static void WriteRegisters() {
 
     for (int i = 0, reg = 0; reg <= CPSR_REGISTER; i++, reg++) {
         if (reg <= SP_REGISTER) {
-            Core::CurrentArmInterface().SetReg(reg, GdbHexToLong(buffer_ptr + i * 16));
+            RegWrite(reg, GdbHexToLong(buffer_ptr + i * 16), current_thread);
         } else if (reg == PC_REGISTER) {
-            Core::CurrentArmInterface().SetPC(GdbHexToLong(buffer_ptr + i * 16));
+            RegWrite(PC_REGISTER, GdbHexToLong(buffer_ptr + i * 16), current_thread);
         } else if (reg == CPSR_REGISTER) {
-            Core::CurrentArmInterface().SetCPSR(GdbHexToInt(buffer_ptr + i * 16));
+            RegWrite(CPSR_REGISTER, GdbHexToInt(buffer_ptr + i * 16), current_thread);
         } else {
             UNIMPLEMENTED();
         }
@@ -692,7 +800,7 @@ static void ReadMemory() {
     u64 len =
         HexToLong(start_offset, static_cast<u64>((command_buffer + command_length) - start_offset));
 
-    NGLOG_DEBUG(Debug_GDBStub, "gdb: addr: {:016X} len: {:016X}", addr, len);
+    LOG_DEBUG(Debug_GDBStub, "gdb: addr: {:016X} len: {:016X}", addr, len);
 
     if (len * 2 > sizeof(reply)) {
         SendReply("E01");
@@ -734,7 +842,7 @@ static void WriteMemory() {
 void Break(bool is_memory_break) {
     if (!halt_loop) {
         halt_loop = true;
-        SendSignal(SIGTRAP);
+        send_trap = true;
     }
 
     memory_break = is_memory_break;
@@ -744,10 +852,10 @@ void Break(bool is_memory_break) {
 static void Step() {
     step_loop = true;
     halt_loop = true;
-    step_break = true;
-    SendSignal(SIGTRAP);
+    send_trap = true;
 }
 
+/// Tell the CPU if we hit a memory breakpoint.
 bool IsMemoryBreak() {
     if (IsConnected()) {
         return false;
@@ -759,7 +867,6 @@ bool IsMemoryBreak() {
 /// Tell the CPU to continue executing.
 static void Continue() {
     memory_break = false;
-    step_break = false;
     step_loop = false;
     halt_loop = false;
 }
@@ -780,8 +887,8 @@ static bool CommitBreakpoint(BreakpointType type, PAddr addr, u64 len) {
     breakpoint.len = len;
     p.insert({addr, breakpoint});
 
-    NGLOG_DEBUG(Debug_GDBStub, "gdb: added {} breakpoint: {:016X} bytes at {:016X}",
-                static_cast<int>(type), breakpoint.len, breakpoint.addr);
+    LOG_DEBUG(Debug_GDBStub, "gdb: added {} breakpoint: {:016X} bytes at {:016X}",
+              static_cast<int>(type), breakpoint.len, breakpoint.addr);
 
     return true;
 }
@@ -888,7 +995,7 @@ void HandlePacket() {
         return;
     }
 
-    NGLOG_DEBUG(Debug_GDBStub, "Packet: {}", command_buffer);
+    LOG_DEBUG(Debug_GDBStub, "Packet: {}", command_buffer);
 
     switch (command_buffer[0]) {
     case 'q':
@@ -898,11 +1005,11 @@ void HandlePacket() {
         HandleSetThread();
         break;
     case '?':
-        SendSignal(latest_signal);
+        SendSignal(current_thread, latest_signal);
         break;
     case 'k':
         Shutdown();
-        NGLOG_INFO(Debug_GDBStub, "killed by gdb");
+        LOG_INFO(Debug_GDBStub, "killed by gdb");
         return;
     case 'g':
         ReadRegisters();
@@ -935,6 +1042,9 @@ void HandlePacket() {
     case 'Z':
         AddBreakpoint();
         break;
+    case 'T':
+        HandleThreadAlive();
+        break;
     default:
         SendReply("");
         break;
@@ -981,7 +1091,7 @@ static void Init(u16 port) {
     breakpoints_write.clear();
 
     // Start gdb server
-    NGLOG_INFO(Debug_GDBStub, "Starting GDB server on port {}...", port);
+    LOG_INFO(Debug_GDBStub, "Starting GDB server on port {}...", port);
 
     sockaddr_in saddr_server = {};
     saddr_server.sin_family = AF_INET;
@@ -994,28 +1104,28 @@ static void Init(u16 port) {
 
     int tmpsock = static_cast<int>(socket(PF_INET, SOCK_STREAM, 0));
     if (tmpsock == -1) {
-        NGLOG_ERROR(Debug_GDBStub, "Failed to create gdb socket");
+        LOG_ERROR(Debug_GDBStub, "Failed to create gdb socket");
     }
 
     // Set socket to SO_REUSEADDR so it can always bind on the same port
     int reuse_enabled = 1;
     if (setsockopt(tmpsock, SOL_SOCKET, SO_REUSEADDR, (const char*)&reuse_enabled,
                    sizeof(reuse_enabled)) < 0) {
-        NGLOG_ERROR(Debug_GDBStub, "Failed to set gdb socket option");
+        LOG_ERROR(Debug_GDBStub, "Failed to set gdb socket option");
     }
 
     const sockaddr* server_addr = reinterpret_cast<const sockaddr*>(&saddr_server);
     socklen_t server_addrlen = sizeof(saddr_server);
     if (bind(tmpsock, server_addr, server_addrlen) < 0) {
-        NGLOG_ERROR(Debug_GDBStub, "Failed to bind gdb socket");
+        LOG_ERROR(Debug_GDBStub, "Failed to bind gdb socket");
     }
 
     if (listen(tmpsock, 1) < 0) {
-        NGLOG_ERROR(Debug_GDBStub, "Failed to listen to gdb socket");
+        LOG_ERROR(Debug_GDBStub, "Failed to listen to gdb socket");
     }
 
     // Wait for gdb to connect
-    NGLOG_INFO(Debug_GDBStub, "Waiting for gdb to connect...");
+    LOG_INFO(Debug_GDBStub, "Waiting for gdb to connect...");
     sockaddr_in saddr_client;
     sockaddr* client_addr = reinterpret_cast<sockaddr*>(&saddr_client);
     socklen_t client_addrlen = sizeof(saddr_client);
@@ -1026,9 +1136,9 @@ static void Init(u16 port) {
         halt_loop = false;
         step_loop = false;
 
-        NGLOG_ERROR(Debug_GDBStub, "Failed to accept gdb client");
+        LOG_ERROR(Debug_GDBStub, "Failed to accept gdb client");
     } else {
-        NGLOG_INFO(Debug_GDBStub, "Client connected.");
+        LOG_INFO(Debug_GDBStub, "Client connected.");
         saddr_client.sin_addr.s_addr = ntohl(saddr_client.sin_addr.s_addr);
     }
 
@@ -1047,7 +1157,7 @@ void Shutdown() {
         return;
     }
 
-    NGLOG_INFO(Debug_GDBStub, "Stopping GDB ...");
+    LOG_INFO(Debug_GDBStub, "Stopping GDB ...");
     if (gdbserver_socket != -1) {
         shutdown(gdbserver_socket, SHUT_RDWR);
         gdbserver_socket = -1;
@@ -1057,7 +1167,7 @@ void Shutdown() {
     WSACleanup();
 #endif
 
-    NGLOG_INFO(Debug_GDBStub, "GDB stopped.");
+    LOG_INFO(Debug_GDBStub, "GDB stopped.");
 }
 
 bool IsServerEnabled() {
@@ -1079,4 +1189,11 @@ bool GetCpuStepFlag() {
 void SetCpuStepFlag(bool is_step) {
     step_loop = is_step;
 }
+
+void SendTrap(Kernel::Thread* thread, int trap) {
+    if (send_trap) {
+        send_trap = false;
+        SendSignal(thread, trap);
+    }
+}
 }; // namespace GDBStub

src/core/gdbstub/gdbstub.h

@@ -7,6 +7,7 @@
 #pragma once
 
 #include "common/common_types.h"
+#include "core/hle/kernel/thread.h"
 
 namespace GDBStub {
 
@@ -91,4 +92,12 @@ bool GetCpuStepFlag();
  * @param is_step
  */
 void SetCpuStepFlag(bool is_step);
+
+/**
+ * Send trap signal from thread back to the gdbstub server.
+ *
+ * @param thread Sending thread.
+ * @param trap Trap no.
+ */
+void SendTrap(Kernel::Thread* thread, int trap);
 } // namespace GDBStub

src/core/hle/ipc.h

@@ -29,7 +29,10 @@ enum class ControlCommand : u32 {
 };
 
 enum class CommandType : u32 {
+    Invalid = 0,
+    LegacyRequest = 1,
     Close = 2,
+    LegacyControl = 3,
     Request = 4,
     Control = 5,
     RequestWithContext = 6,

src/core/hle/kernel/address_arbiter.cpp

@@ -0,0 +1,173 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "core/core.h"
+#include "core/hle/kernel/errors.h"
+#include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/process.h"
+#include "core/hle/kernel/thread.h"
+#include "core/hle/lock.h"
+#include "core/memory.h"
+
+namespace Kernel {
+namespace AddressArbiter {
+
+// Performs actual address waiting logic.
+static ResultCode WaitForAddress(VAddr address, s64 timeout) {
+    SharedPtr<Thread> current_thread = GetCurrentThread();
+    current_thread->arb_wait_address = address;
+    current_thread->status = THREADSTATUS_WAIT_ARB;
+    current_thread->wakeup_callback = nullptr;
+
+    current_thread->WakeAfterDelay(timeout);
+
+    Core::System::GetInstance().CpuCore(current_thread->processor_id).PrepareReschedule();
+    return RESULT_TIMEOUT;
+}
+
+// Gets the threads waiting on an address.
+static void GetThreadsWaitingOnAddress(std::vector<SharedPtr<Thread>>& waiting_threads,
+                                       VAddr address) {
+    auto RetrieveWaitingThreads =
+        [](size_t core_index, std::vector<SharedPtr<Thread>>& waiting_threads, VAddr arb_addr) {
+            const auto& scheduler = Core::System::GetInstance().Scheduler(core_index);
+            auto& thread_list = scheduler->GetThreadList();
+
+            for (auto& thread : thread_list) {
+                if (thread->arb_wait_address == arb_addr)
+                    waiting_threads.push_back(thread);
+            }
+        };
+
+    // Retrieve a list of all threads that are waiting for this address.
+    RetrieveWaitingThreads(0, waiting_threads, address);
+    RetrieveWaitingThreads(1, waiting_threads, address);
+    RetrieveWaitingThreads(2, waiting_threads, address);
+    RetrieveWaitingThreads(3, waiting_threads, address);
+    // Sort them by priority, such that the highest priority ones come first.
+    std::sort(waiting_threads.begin(), waiting_threads.end(),
+              [](const SharedPtr<Thread>& lhs, const SharedPtr<Thread>& rhs) {
+                  return lhs->current_priority < rhs->current_priority;
+              });
+}
+
+// Wake up num_to_wake (or all) threads in a vector.
+static void WakeThreads(std::vector<SharedPtr<Thread>>& waiting_threads, s32 num_to_wake) {
+    // Only process up to 'target' threads, unless 'target' is <= 0, in which case process
+    // them all.
+    size_t last = waiting_threads.size();
+    if (num_to_wake > 0)
+        last = num_to_wake;
+
+    // Signal the waiting threads.
+    for (size_t i = 0; i < last; i++) {
+        ASSERT(waiting_threads[i]->status = THREADSTATUS_WAIT_ARB);
+        waiting_threads[i]->SetWaitSynchronizationResult(RESULT_SUCCESS);
+        waiting_threads[i]->arb_wait_address = 0;
+        waiting_threads[i]->ResumeFromWait();
+    }
+}
+
+// Signals an address being waited on.
+ResultCode SignalToAddress(VAddr address, s32 num_to_wake) {
+    // Get threads waiting on the address.
+    std::vector<SharedPtr<Thread>> waiting_threads;
+    GetThreadsWaitingOnAddress(waiting_threads, address);
+
+    WakeThreads(waiting_threads, num_to_wake);
+    return RESULT_SUCCESS;
+}
+
+// Signals an address being waited on and increments its value if equal to the value argument.
+ResultCode IncrementAndSignalToAddressIfEqual(VAddr address, s32 value, s32 num_to_wake) {
+    // Ensure that we can write to the address.
+    if (!Memory::IsValidVirtualAddress(address)) {
+        return ERR_INVALID_ADDRESS_STATE;
+    }
+
+    if (static_cast<s32>(Memory::Read32(address)) == value) {
+        Memory::Write32(address, static_cast<u32>(value + 1));
+    } else {
+        return ERR_INVALID_STATE;
+    }
+
+    return SignalToAddress(address, num_to_wake);
+}
+
+// Signals an address being waited on and modifies its value based on waiting thread count if equal
+// to the value argument.
+ResultCode ModifyByWaitingCountAndSignalToAddressIfEqual(VAddr address, s32 value,
+                                                         s32 num_to_wake) {
+    // Ensure that we can write to the address.
+    if (!Memory::IsValidVirtualAddress(address)) {
+        return ERR_INVALID_ADDRESS_STATE;
+    }
+
+    // Get threads waiting on the address.
+    std::vector<SharedPtr<Thread>> waiting_threads;
+    GetThreadsWaitingOnAddress(waiting_threads, address);
+
+    // Determine the modified value depending on the waiting count.
+    s32 updated_value;
+    if (waiting_threads.size() == 0) {
+        updated_value = value - 1;
+    } else if (num_to_wake <= 0 || waiting_threads.size() <= num_to_wake) {
+        updated_value = value + 1;
+    } else {
+        updated_value = value;
+    }
+
+    if (static_cast<s32>(Memory::Read32(address)) == value) {
+        Memory::Write32(address, static_cast<u32>(updated_value));
+    } else {
+        return ERR_INVALID_STATE;
+    }
+
+    WakeThreads(waiting_threads, num_to_wake);
+    return RESULT_SUCCESS;
+}
+
+// Waits on an address if the value passed is less than the argument value, optionally decrementing.
+ResultCode WaitForAddressIfLessThan(VAddr address, s32 value, s64 timeout, bool should_decrement) {
+    // Ensure that we can read the address.
+    if (!Memory::IsValidVirtualAddress(address)) {
+        return ERR_INVALID_ADDRESS_STATE;
+    }
+
+    s32 cur_value = static_cast<s32>(Memory::Read32(address));
+    if (cur_value < value) {
+        Memory::Write32(address, static_cast<u32>(cur_value - 1));
+    } else {
+        return ERR_INVALID_STATE;
+    }
+    // Short-circuit without rescheduling, if timeout is zero.
+    if (timeout == 0) {
+        return RESULT_TIMEOUT;
+    }
+
+    return WaitForAddress(address, timeout);
+}
+
+// Waits on an address if the value passed is equal to the argument value.
+ResultCode WaitForAddressIfEqual(VAddr address, s32 value, s64 timeout) {
+    // Ensure that we can read the address.
+    if (!Memory::IsValidVirtualAddress(address)) {
+        return ERR_INVALID_ADDRESS_STATE;
+    }
+    // Only wait for the address if equal.
+    if (static_cast<s32>(Memory::Read32(address)) != value) {
+        return ERR_INVALID_STATE;
+    }
+    // Short-circuit without rescheduling, if timeout is zero.
+    if (timeout == 0) {
+        return RESULT_TIMEOUT;
+    }
+
+    return WaitForAddress(address, timeout);
+}
+} // namespace AddressArbiter
+} // namespace Kernel

src/core/hle/kernel/address_arbiter.h

@@ -0,0 +1,32 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/result.h"
+
+namespace Kernel {
+
+namespace AddressArbiter {
+enum class ArbitrationType {
+    WaitIfLessThan = 0,
+    DecrementAndWaitIfLessThan = 1,
+    WaitIfEqual = 2,
+};
+
+enum class SignalType {
+    Signal = 0,
+    IncrementAndSignalIfEqual = 1,
+    ModifyByWaitingCountAndSignalIfEqual = 2,
+};
+
+ResultCode SignalToAddress(VAddr address, s32 num_to_wake);
+ResultCode IncrementAndSignalToAddressIfEqual(VAddr address, s32 value, s32 num_to_wake);
+ResultCode ModifyByWaitingCountAndSignalToAddressIfEqual(VAddr address, s32 value, s32 num_to_wake);
+
+ResultCode WaitForAddressIfLessThan(VAddr address, s32 value, s64 timeout, bool should_decrement);
+ResultCode WaitForAddressIfEqual(VAddr address, s32 value, s64 timeout);
+} // namespace AddressArbiter
+
+} // namespace Kernel

src/core/hle/kernel/errors.h

@@ -20,11 +20,16 @@ enum {
     MaxConnectionsReached = 52,
 
     // Confirmed Switch OS error codes
-    MisalignedAddress = 102,
+    InvalidAddress = 102,
+    InvalidMemoryState = 106,
+    InvalidProcessorId = 113,
     InvalidHandle = 114,
+    InvalidCombination = 116,
     Timeout = 117,
     SynchronizationCanceled = 118,
     TooLarge = 119,
+    InvalidEnumValue = 120,
+    InvalidState = 125,
 };
 }
 
@@ -37,14 +42,15 @@ constexpr ResultCode ERR_SESSION_CLOSED_BY_REMOTE(-1);
 constexpr ResultCode ERR_PORT_NAME_TOO_LONG(-1);
 constexpr ResultCode ERR_WRONG_PERMISSION(-1);
 constexpr ResultCode ERR_MAX_CONNECTIONS_REACHED(-1);
-constexpr ResultCode ERR_INVALID_ENUM_VALUE(-1);
+constexpr ResultCode ERR_INVALID_ENUM_VALUE(ErrorModule::Kernel, ErrCodes::InvalidEnumValue);
 constexpr ResultCode ERR_INVALID_ENUM_VALUE_FND(-1);
 constexpr ResultCode ERR_INVALID_COMBINATION(-1);
 constexpr ResultCode ERR_INVALID_COMBINATION_KERNEL(-1);
 constexpr ResultCode ERR_OUT_OF_MEMORY(-1);
-constexpr ResultCode ERR_INVALID_ADDRESS(-1);
-constexpr ResultCode ERR_INVALID_ADDRESS_STATE(-1);
+constexpr ResultCode ERR_INVALID_ADDRESS(ErrorModule::Kernel, ErrCodes::InvalidAddress);
+constexpr ResultCode ERR_INVALID_ADDRESS_STATE(ErrorModule::Kernel, ErrCodes::InvalidMemoryState);
 constexpr ResultCode ERR_INVALID_HANDLE(ErrorModule::Kernel, ErrCodes::InvalidHandle);
+constexpr ResultCode ERR_INVALID_STATE(ErrorModule::Kernel, ErrCodes::InvalidState);
 constexpr ResultCode ERR_INVALID_POINTER(-1);
 constexpr ResultCode ERR_INVALID_OBJECT_ADDR(-1);
 constexpr ResultCode ERR_NOT_AUTHORIZED(-1);

src/core/hle/kernel/handle_table.cpp

@@ -26,7 +26,7 @@ ResultVal<Handle> HandleTable::Create(SharedPtr<Object> obj) {
 
     u16 slot = next_free_slot;
     if (slot >= generations.size()) {
-        NGLOG_ERROR(Kernel, "Unable to allocate Handle, too many slots in use.");
+        LOG_ERROR(Kernel, "Unable to allocate Handle, too many slots in use.");
         return ERR_OUT_OF_HANDLES;
     }
     next_free_slot = generations[slot];
@@ -48,7 +48,7 @@ ResultVal<Handle> HandleTable::Create(SharedPtr<Object> obj) {
 ResultVal<Handle> HandleTable::Duplicate(Handle handle) {
     SharedPtr<Object> object = GetGeneric(handle);
     if (object == nullptr) {
-        NGLOG_ERROR(Kernel, "Tried to duplicate invalid handle: {:08X}", handle);
+        LOG_ERROR(Kernel, "Tried to duplicate invalid handle: {:08X}", handle);
         return ERR_INVALID_HANDLE;
     }
     return Create(std::move(object));

src/core/hle/kernel/hle_ipc.cpp

@@ -120,7 +120,7 @@ void HLERequestContext::ParseCommandBuffer(u32_le* src_cmdbuf, bool incoming) {
                 std::make_shared<IPC::DomainMessageHeader>(rp.PopRaw<IPC::DomainMessageHeader>());
         } else {
             if (Session()->IsDomain())
-                NGLOG_WARNING(IPC, "Domain request has no DomainMessageHeader!");
+                LOG_WARNING(IPC, "Domain request has no DomainMessageHeader!");
         }
     }
 
@@ -271,11 +271,16 @@ std::vector<u8> HLERequestContext::ReadBuffer(int buffer_index) const {
 }
 
 size_t HLERequestContext::WriteBuffer(const void* buffer, size_t size, int buffer_index) const {
+    if (size == 0) {
+        LOG_WARNING(Core, "skip empty buffer write");
+        return 0;
+    }
+
     const bool is_buffer_b{BufferDescriptorB().size() && BufferDescriptorB()[buffer_index].Size()};
     const size_t buffer_size{GetWriteBufferSize(buffer_index)};
     if (size > buffer_size) {
-        NGLOG_CRITICAL(Core, "size ({:016X}) is greater than buffer_size ({:016X})", size,
-                       buffer_size);
+        LOG_CRITICAL(Core, "size ({:016X}) is greater than buffer_size ({:016X})", size,
+                     buffer_size);
         size = buffer_size; // TODO(bunnei): This needs to be HW tested
     }
 

src/core/hle/kernel/mutex.cpp

@@ -59,7 +59,7 @@ ResultCode Mutex::TryAcquire(VAddr address, Handle holding_thread_handle,
                              Handle requesting_thread_handle) {
     // The mutex address must be 4-byte aligned
     if ((address % sizeof(u32)) != 0) {
-        return ResultCode(ErrorModule::Kernel, ErrCodes::MisalignedAddress);
+        return ResultCode(ErrorModule::Kernel, ErrCodes::InvalidAddress);
     }
 
     SharedPtr<Thread> holding_thread = g_handle_table.Get<Thread>(holding_thread_handle);
@@ -97,7 +97,7 @@ ResultCode Mutex::TryAcquire(VAddr address, Handle holding_thread_handle,
 ResultCode Mutex::Release(VAddr address) {
     // The mutex address must be 4-byte aligned
     if ((address % sizeof(u32)) != 0) {
-        return ResultCode(ErrorModule::Kernel, ErrCodes::MisalignedAddress);
+        return ResultCode(ErrorModule::Kernel, ErrCodes::InvalidAddress);
     }
 
     auto [thread, num_waiters] = GetHighestPriorityMutexWaitingThread(GetCurrentThread(), address);

src/core/hle/kernel/process.cpp

@@ -54,7 +54,7 @@ void Process::ParseKernelCaps(const u32* kernel_caps, size_t len) {
             continue;
         } else if ((type & 0xF00) == 0xE00) { // 0x0FFF
             // Allowed interrupts list
-            NGLOG_WARNING(Loader, "ExHeader allowed interrupts list ignored");
+            LOG_WARNING(Loader, "ExHeader allowed interrupts list ignored");
         } else if ((type & 0xF80) == 0xF00) { // 0x07FF
             // Allowed syscalls mask
             unsigned int index = ((descriptor >> 24) & 7) * 24;
@@ -74,7 +74,7 @@ void Process::ParseKernelCaps(const u32* kernel_caps, size_t len) {
         } else if ((type & 0xFFE) == 0xFF8) { // 0x001F
             // Mapped memory range
             if (i + 1 >= len || ((kernel_caps[i + 1] >> 20) & 0xFFE) != 0xFF8) {
-                NGLOG_WARNING(Loader, "Incomplete exheader memory range descriptor ignored.");
+                LOG_WARNING(Loader, "Incomplete exheader memory range descriptor ignored.");
                 continue;
             }
             u32 end_desc = kernel_caps[i + 1];
@@ -109,9 +109,9 @@ void Process::ParseKernelCaps(const u32* kernel_caps, size_t len) {
 
             int minor = kernel_version & 0xFF;
             int major = (kernel_version >> 8) & 0xFF;
-            NGLOG_INFO(Loader, "ExHeader kernel version: {}.{}", major, minor);
+            LOG_INFO(Loader, "ExHeader kernel version: {}.{}", major, minor);
         } else {
-            NGLOG_ERROR(Loader, "Unhandled kernel caps descriptor: 0x{:08X}", descriptor);
+            LOG_ERROR(Loader, "Unhandled kernel caps descriptor: 0x{:08X}", descriptor);
         }
     }
 }

src/core/hle/kernel/resource_limit.cpp

@@ -29,7 +29,7 @@ SharedPtr<ResourceLimit> ResourceLimit::GetForCategory(ResourceLimitCategory cat
     case ResourceLimitCategory::OTHER:
         return resource_limits[static_cast<u8>(category)];
     default:
-        NGLOG_CRITICAL(Kernel, "Unknown resource limit category");
+        LOG_CRITICAL(Kernel, "Unknown resource limit category");
         UNREACHABLE();
     }
 }
@@ -55,7 +55,7 @@ s32 ResourceLimit::GetCurrentResourceValue(ResourceType resource) const {
     case ResourceType::CPUTime:
         return current_cpu_time;
     default:
-        NGLOG_ERROR(Kernel, "Unknown resource type={:08X}", static_cast<u32>(resource));
+        LOG_ERROR(Kernel, "Unknown resource type={:08X}", static_cast<u32>(resource));
         UNIMPLEMENTED();
         return 0;
     }
@@ -84,7 +84,7 @@ u32 ResourceLimit::GetMaxResourceValue(ResourceType resource) const {
     case ResourceType::CPUTime:
         return max_cpu_time;
     default:
-        NGLOG_ERROR(Kernel, "Unknown resource type={:08X}", static_cast<u32>(resource));
+        LOG_ERROR(Kernel, "Unknown resource type={:08X}", static_cast<u32>(resource));
         UNIMPLEMENTED();
         return 0;
     }

src/core/hle/kernel/scheduler.cpp

@@ -99,11 +99,11 @@ void Scheduler::Reschedule() {
     Thread* next = PopNextReadyThread();
 
     if (cur && next) {
-        NGLOG_TRACE(Kernel, "context switch {} -> {}", cur->GetObjectId(), next->GetObjectId());
+        LOG_TRACE(Kernel, "context switch {} -> {}", cur->GetObjectId(), next->GetObjectId());
     } else if (cur) {
-        NGLOG_TRACE(Kernel, "context switch {} -> idle", cur->GetObjectId());
+        LOG_TRACE(Kernel, "context switch {} -> idle", cur->GetObjectId());
     } else if (next) {
-        NGLOG_TRACE(Kernel, "context switch idle -> {}", next->GetObjectId());
+        LOG_TRACE(Kernel, "context switch idle -> {}", next->GetObjectId());
     }
 
     SwitchContext(next);

src/core/hle/kernel/server_session.cpp

@@ -71,7 +71,7 @@ ResultCode ServerSession::HandleDomainSyncRequest(Kernel::HLERequestContext& con
             return domain_request_handlers[object_id - 1]->HandleSyncRequest(context);
 
         case IPC::DomainMessageHeader::CommandType::CloseVirtualHandle: {
-            NGLOG_DEBUG(IPC, "CloseVirtualHandle, object_id=0x{:08X}", object_id);
+            LOG_DEBUG(IPC, "CloseVirtualHandle, object_id=0x{:08X}", object_id);
 
             domain_request_handlers[object_id - 1] = nullptr;
 
@@ -81,8 +81,8 @@ ResultCode ServerSession::HandleDomainSyncRequest(Kernel::HLERequestContext& con
         }
         }
 
-        NGLOG_CRITICAL(IPC, "Unknown domain command={}",
-                       static_cast<int>(domain_message_header->command.Value()));
+        LOG_CRITICAL(IPC, "Unknown domain command={}",
+                     static_cast<int>(domain_message_header->command.Value()));
         ASSERT(false);
     }
 

src/core/hle/kernel/shared_memory.cpp

@@ -107,16 +107,16 @@ ResultCode SharedMemory::Map(Process* target_process, VAddr address, MemoryPermi
 
     // Error out if the requested permissions don't match what the creator process allows.
     if (static_cast<u32>(permissions) & ~static_cast<u32>(own_other_permissions)) {
-        NGLOG_ERROR(Kernel, "cannot map id={}, address=0x{:X} name={}, permissions don't match",
-                    GetObjectId(), address, name);
+        LOG_ERROR(Kernel, "cannot map id={}, address=0x{:X} name={}, permissions don't match",
+                  GetObjectId(), address, name);
         return ERR_INVALID_COMBINATION;
     }
 
     // Error out if the provided permissions are not compatible with what the creator process needs.
     if (other_permissions != MemoryPermission::DontCare &&
         static_cast<u32>(this->permissions) & ~static_cast<u32>(other_permissions)) {
-        NGLOG_ERROR(Kernel, "cannot map id={}, address=0x{:X} name={}, permissions don't match",
-                    GetObjectId(), address, name);
+        LOG_ERROR(Kernel, "cannot map id={}, address=0x{:X} name={}, permissions don't match",
+                  GetObjectId(), address, name);
         return ERR_WRONG_PERMISSION;
     }
 
@@ -131,7 +131,7 @@ ResultCode SharedMemory::Map(Process* target_process, VAddr address, MemoryPermi
     auto result = target_process->vm_manager.MapMemoryBlock(
         target_address, backing_block, backing_block_offset, size, MemoryState::Shared);
     if (result.Failed()) {
-        NGLOG_ERROR(
+        LOG_ERROR(
             Kernel,
             "cannot map id={}, target_address=0x{:X} name={}, error mapping to virtual memory",
             GetObjectId(), target_address, name);

src/core/hle/kernel/svc.cpp

@@ -11,6 +11,7 @@
 #include "common/string_util.h"
 #include "core/core.h"
 #include "core/core_timing.h"
+#include "core/hle/kernel/address_arbiter.h"
 #include "core/hle/kernel/client_port.h"
 #include "core/hle/kernel/client_session.h"
 #include "core/hle/kernel/event.h"
@@ -31,7 +32,7 @@ namespace Kernel {
 
 /// Set the process heap to a given Size. It can both extend and shrink the heap.
 static ResultCode SetHeapSize(VAddr* heap_addr, u64 heap_size) {
-    NGLOG_TRACE(Kernel_SVC, "called, heap_size=0x{:X}", heap_size);
+    LOG_TRACE(Kernel_SVC, "called, heap_size=0x{:X}", heap_size);
     auto& process = *Core::CurrentProcess();
     CASCADE_RESULT(*heap_addr,
                    process.HeapAllocate(Memory::HEAP_VADDR, heap_size, VMAPermission::ReadWrite));
@@ -39,21 +40,21 @@ static ResultCode SetHeapSize(VAddr* heap_addr, u64 heap_size) {
 }
 
 static ResultCode SetMemoryAttribute(VAddr addr, u64 size, u32 state0, u32 state1) {
-    NGLOG_WARNING(Kernel_SVC, "(STUBBED) called, addr=0x{:X}", addr);
+    LOG_WARNING(Kernel_SVC, "(STUBBED) called, addr=0x{:X}", addr);
     return RESULT_SUCCESS;
 }
 
 /// Maps a memory range into a different range.
 static ResultCode MapMemory(VAddr dst_addr, VAddr src_addr, u64 size) {
-    NGLOG_TRACE(Kernel_SVC, "called, dst_addr=0x{:X}, src_addr=0x{:X}, size=0x{:X}", dst_addr,
-                src_addr, size);
+    LOG_TRACE(Kernel_SVC, "called, dst_addr=0x{:X}, src_addr=0x{:X}, size=0x{:X}", dst_addr,
+              src_addr, size);
     return Core::CurrentProcess()->MirrorMemory(dst_addr, src_addr, size);
 }
 
 /// Unmaps a region that was previously mapped with svcMapMemory
 static ResultCode UnmapMemory(VAddr dst_addr, VAddr src_addr, u64 size) {
-    NGLOG_TRACE(Kernel_SVC, "called, dst_addr=0x{:X}, src_addr=0x{:X}, size=0x{:X}", dst_addr,
-                src_addr, size);
+    LOG_TRACE(Kernel_SVC, "called, dst_addr=0x{:X}, src_addr=0x{:X}, size=0x{:X}", dst_addr,
+              src_addr, size);
     return Core::CurrentProcess()->UnmapMemory(dst_addr, src_addr, size);
 }
 
@@ -68,11 +69,11 @@ static ResultCode ConnectToNamedPort(Handle* out_handle, VAddr port_name_address
     if (port_name.size() > PortNameMaxLength)
         return ERR_PORT_NAME_TOO_LONG;
 
-    NGLOG_TRACE(Kernel_SVC, "called port_name={}", port_name);
+    LOG_TRACE(Kernel_SVC, "called port_name={}", port_name);
 
     auto it = Service::g_kernel_named_ports.find(port_name);
     if (it == Service::g_kernel_named_ports.end()) {
-        NGLOG_WARNING(Kernel_SVC, "tried to connect to unknown port: {}", port_name);
+        LOG_WARNING(Kernel_SVC, "tried to connect to unknown port: {}", port_name);
         return ERR_NOT_FOUND;
     }
 
@@ -90,11 +91,11 @@ static ResultCode ConnectToNamedPort(Handle* out_handle, VAddr port_name_address
 static ResultCode SendSyncRequest(Handle handle) {
     SharedPtr<ClientSession> session = g_handle_table.Get<ClientSession>(handle);
     if (!session) {
-        NGLOG_ERROR(Kernel_SVC, "called with invalid handle=0x{:08X}", handle);
+        LOG_ERROR(Kernel_SVC, "called with invalid handle=0x{:08X}", handle);
         return ERR_INVALID_HANDLE;
     }
 
-    NGLOG_TRACE(Kernel_SVC, "called handle=0x{:08X}({})", handle, session->GetName());
+    LOG_TRACE(Kernel_SVC, "called handle=0x{:08X}({})", handle, session->GetName());
 
     Core::System::GetInstance().PrepareReschedule();
 
@@ -105,7 +106,7 @@ static ResultCode SendSyncRequest(Handle handle) {
 
 /// Get the ID for the specified thread.
 static ResultCode GetThreadId(u32* thread_id, Handle thread_handle) {
-    NGLOG_TRACE(Kernel_SVC, "called thread=0x{:08X}", thread_handle);
+    LOG_TRACE(Kernel_SVC, "called thread=0x{:08X}", thread_handle);
 
     const SharedPtr<Thread> thread = g_handle_table.Get<Thread>(thread_handle);
     if (!thread) {
@@ -118,7 +119,7 @@ static ResultCode GetThreadId(u32* thread_id, Handle thread_handle) {
 
 /// Get the ID of the specified process
 static ResultCode GetProcessId(u32* process_id, Handle process_handle) {
-    NGLOG_TRACE(Kernel_SVC, "called process=0x{:08X}", process_handle);
+    LOG_TRACE(Kernel_SVC, "called process=0x{:08X}", process_handle);
 
     const SharedPtr<Process> process = g_handle_table.Get<Process>(process_handle);
     if (!process) {
@@ -148,8 +149,8 @@ static bool DefaultThreadWakeupCallback(ThreadWakeupReason reason, SharedPtr<Thr
 /// Wait for the given handles to synchronize, timeout after the specified nanoseconds
 static ResultCode WaitSynchronization(Handle* index, VAddr handles_address, u64 handle_count,
                                       s64 nano_seconds) {
-    NGLOG_TRACE(Kernel_SVC, "called handles_address=0x{:X}, handle_count={}, nano_seconds={}",
-                handles_address, handle_count, nano_seconds);
+    LOG_TRACE(Kernel_SVC, "called handles_address=0x{:X}, handle_count={}, nano_seconds={}",
+              handles_address, handle_count, nano_seconds);
 
     if (!Memory::IsValidVirtualAddress(handles_address))
         return ERR_INVALID_POINTER;
@@ -209,7 +210,7 @@ static ResultCode WaitSynchronization(Handle* index, VAddr handles_address, u64
 
 /// Resumes a thread waiting on WaitSynchronization
 static ResultCode CancelSynchronization(Handle thread_handle) {
-    NGLOG_TRACE(Kernel_SVC, "called thread=0x{:X}", thread_handle);
+    LOG_TRACE(Kernel_SVC, "called thread=0x{:X}", thread_handle);
 
     const SharedPtr<Thread> thread = g_handle_table.Get<Thread>(thread_handle);
     if (!thread) {
@@ -226,24 +227,24 @@ static ResultCode CancelSynchronization(Handle thread_handle) {
 /// Attempts to locks a mutex, creating it if it does not already exist
 static ResultCode ArbitrateLock(Handle holding_thread_handle, VAddr mutex_addr,
                                 Handle requesting_thread_handle) {
-    NGLOG_TRACE(Kernel_SVC,
-                "called holding_thread_handle=0x{:08X}, mutex_addr=0x{:X}, "
-                "requesting_current_thread_handle=0x{:08X}",
-                holding_thread_handle, mutex_addr, requesting_thread_handle);
+    LOG_TRACE(Kernel_SVC,
+              "called holding_thread_handle=0x{:08X}, mutex_addr=0x{:X}, "
+              "requesting_current_thread_handle=0x{:08X}",
+              holding_thread_handle, mutex_addr, requesting_thread_handle);
 
     return Mutex::TryAcquire(mutex_addr, holding_thread_handle, requesting_thread_handle);
 }
 
 /// Unlock a mutex
 static ResultCode ArbitrateUnlock(VAddr mutex_addr) {
-    NGLOG_TRACE(Kernel_SVC, "called mutex_addr=0x{:X}", mutex_addr);
+    LOG_TRACE(Kernel_SVC, "called mutex_addr=0x{:X}", mutex_addr);
 
     return Mutex::Release(mutex_addr);
 }
 
 /// Break program execution
 static void Break(u64 unk_0, u64 unk_1, u64 unk_2) {
-    NGLOG_CRITICAL(Debug_Emulated, "Emulated program broke execution!");
+    LOG_CRITICAL(Debug_Emulated, "Emulated program broke execution!");
     ASSERT(false);
 }
 
@@ -251,13 +252,13 @@ static void Break(u64 unk_0, u64 unk_1, u64 unk_2) {
 static void OutputDebugString(VAddr address, s32 len) {
     std::string str(len, '\0');
     Memory::ReadBlock(address, str.data(), str.size());
-    NGLOG_DEBUG(Debug_Emulated, "{}", str);
+    LOG_DEBUG(Debug_Emulated, "{}", str);
 }
 
 /// Gets system/memory information for the current process
 static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id) {
-    NGLOG_TRACE(Kernel_SVC, "called info_id=0x{:X}, info_sub_id=0x{:X}, handle=0x{:08X}", info_id,
-                info_sub_id, handle);
+    LOG_TRACE(Kernel_SVC, "called info_id=0x{:X}, info_sub_id=0x{:X}, handle=0x{:08X}", info_id,
+              info_sub_id, handle);
 
     auto& vm_manager = Core::CurrentProcess()->vm_manager;
 
@@ -308,12 +309,17 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id)
         *result = Core::CurrentProcess()->is_virtual_address_memory_enabled;
         break;
     case GetInfoType::TitleId:
-        NGLOG_WARNING(Kernel_SVC, "(STUBBED) Attempted to query titleid, returned 0");
+        LOG_WARNING(Kernel_SVC, "(STUBBED) Attempted to query titleid, returned 0");
         *result = 0;
         break;
     case GetInfoType::PrivilegedProcessId:
-        NGLOG_WARNING(Kernel_SVC,
-                      "(STUBBED) Attempted to query privileged process id bounds, returned 0");
+        LOG_WARNING(Kernel_SVC,
+                    "(STUBBED) Attempted to query privileged process id bounds, returned 0");
+        *result = 0;
+        break;
+    case GetInfoType::UserExceptionContextAddr:
+        LOG_WARNING(Kernel_SVC,
+                    "(STUBBED) Attempted to query user exception context address, returned 0");
         *result = 0;
         break;
     default:
@@ -325,14 +331,13 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id)
 
 /// Sets the thread activity
 static ResultCode SetThreadActivity(Handle handle, u32 unknown) {
-    NGLOG_WARNING(Kernel_SVC, "(STUBBED) called, handle=0x{:08X}, unknown=0x{:08X}", handle,
-                  unknown);
+    LOG_WARNING(Kernel_SVC, "(STUBBED) called, handle=0x{:08X}, unknown=0x{:08X}", handle, unknown);
     return RESULT_SUCCESS;
 }
 
 /// Gets the thread context
 static ResultCode GetThreadContext(Handle handle, VAddr addr) {
-    NGLOG_WARNING(Kernel_SVC, "(STUBBED) called, handle=0x{:08X}, addr=0x{:X}", handle, addr);
+    LOG_WARNING(Kernel_SVC, "(STUBBED) called, handle=0x{:08X}, addr=0x{:X}", handle, addr);
     return RESULT_SUCCESS;
 }
 
@@ -371,16 +376,15 @@ static ResultCode SetThreadPriority(Handle handle, u32 priority) {
 
 /// Get which CPU core is executing the current thread
 static u32 GetCurrentProcessorNumber() {
-    NGLOG_TRACE(Kernel_SVC, "called");
+    LOG_TRACE(Kernel_SVC, "called");
     return GetCurrentThread()->processor_id;
 }
 
 static ResultCode MapSharedMemory(Handle shared_memory_handle, VAddr addr, u64 size,
                                   u32 permissions) {
-    NGLOG_TRACE(
-        Kernel_SVC,
-        "called, shared_memory_handle=0x{:X}, addr=0x{:X}, size=0x{:X}, permissions=0x{:08X}",
-        shared_memory_handle, addr, size, permissions);
+    LOG_TRACE(Kernel_SVC,
+              "called, shared_memory_handle=0x{:X}, addr=0x{:X}, size=0x{:X}, permissions=0x{:08X}",
+              shared_memory_handle, addr, size, permissions);
 
     SharedPtr<SharedMemory> shared_memory = g_handle_table.Get<SharedMemory>(shared_memory_handle);
     if (!shared_memory) {
@@ -400,15 +404,15 @@ static ResultCode MapSharedMemory(Handle shared_memory_handle, VAddr addr, u64 s
         return shared_memory->Map(Core::CurrentProcess().get(), addr, permissions_type,
                                   MemoryPermission::DontCare);
     default:
-        NGLOG_ERROR(Kernel_SVC, "unknown permissions=0x{:08X}", permissions);
+        LOG_ERROR(Kernel_SVC, "unknown permissions=0x{:08X}", permissions);
     }
 
     return RESULT_SUCCESS;
 }
 
 static ResultCode UnmapSharedMemory(Handle shared_memory_handle, VAddr addr, u64 size) {
-    NGLOG_WARNING(Kernel_SVC, "called, shared_memory_handle=0x{:08X}, addr=0x{:X}, size=0x{:X}",
-                  shared_memory_handle, addr, size);
+    LOG_WARNING(Kernel_SVC, "called, shared_memory_handle=0x{:08X}, addr=0x{:X}, size=0x{:X}",
+                shared_memory_handle, addr, size);
 
     SharedPtr<SharedMemory> shared_memory = g_handle_table.Get<SharedMemory>(shared_memory_handle);
 
@@ -436,19 +440,19 @@ static ResultCode QueryProcessMemory(MemoryInfo* memory_info, PageInfo* /*page_i
         memory_info->type = static_cast<u32>(vma->second.meminfo_state);
     }
 
-    NGLOG_TRACE(Kernel_SVC, "called process=0x{:08X} addr={:X}", process_handle, addr);
+    LOG_TRACE(Kernel_SVC, "called process=0x{:08X} addr={:X}", process_handle, addr);
     return RESULT_SUCCESS;
 }
 
 /// Query memory
 static ResultCode QueryMemory(MemoryInfo* memory_info, PageInfo* page_info, VAddr addr) {
-    NGLOG_TRACE(Kernel_SVC, "called, addr={:X}", addr);
+    LOG_TRACE(Kernel_SVC, "called, addr={:X}", addr);
     return QueryProcessMemory(memory_info, page_info, CurrentProcess, addr);
 }
 
 /// Exits the current process
 static void ExitProcess() {
-    NGLOG_INFO(Kernel_SVC, "Process {} exiting", Core::CurrentProcess()->process_id);
+    LOG_INFO(Kernel_SVC, "Process {} exiting", Core::CurrentProcess()->process_id);
 
     ASSERT_MSG(Core::CurrentProcess()->status == ProcessStatus::Running,
                "Process has already exited");
@@ -524,17 +528,17 @@ static ResultCode CreateThread(Handle* out_handle, VAddr entry_point, u64 arg, V
     Core::System::GetInstance().PrepareReschedule();
     Core::System::GetInstance().CpuCore(thread->processor_id).PrepareReschedule();
 
-    NGLOG_TRACE(Kernel_SVC,
-                "called entrypoint=0x{:08X} ({}), arg=0x{:08X}, stacktop=0x{:08X}, "
-                "threadpriority=0x{:08X}, processorid=0x{:08X} : created handle=0x{:08X}",
-                entry_point, name, arg, stack_top, priority, processor_id, *out_handle);
+    LOG_TRACE(Kernel_SVC,
+              "called entrypoint=0x{:08X} ({}), arg=0x{:08X}, stacktop=0x{:08X}, "
+              "threadpriority=0x{:08X}, processorid=0x{:08X} : created handle=0x{:08X}",
+              entry_point, name, arg, stack_top, priority, processor_id, *out_handle);
 
     return RESULT_SUCCESS;
 }
 
 /// Starts the thread for the provided handle
 static ResultCode StartThread(Handle thread_handle) {
-    NGLOG_TRACE(Kernel_SVC, "called thread=0x{:08X}", thread_handle);
+    LOG_TRACE(Kernel_SVC, "called thread=0x{:08X}", thread_handle);
 
     const SharedPtr<Thread> thread = g_handle_table.Get<Thread>(thread_handle);
     if (!thread) {
@@ -551,7 +555,7 @@ static ResultCode StartThread(Handle thread_handle) {
 
 /// Called when a thread exits
 static void ExitThread() {
-    NGLOG_TRACE(Kernel_SVC, "called, pc=0x{:08X}", Core::CurrentArmInterface().GetPC());
+    LOG_TRACE(Kernel_SVC, "called, pc=0x{:08X}", Core::CurrentArmInterface().GetPC());
 
     ExitCurrentThread();
     Core::System::GetInstance().PrepareReschedule();
@@ -559,7 +563,7 @@ static void ExitThread() {
 
 /// Sleep the current thread
 static void SleepThread(s64 nanoseconds) {
-    NGLOG_TRACE(Kernel_SVC, "called nanoseconds={}", nanoseconds);
+    LOG_TRACE(Kernel_SVC, "called nanoseconds={}", nanoseconds);
 
     // Don't attempt to yield execution if there are no available threads to run,
     // this way we avoid a useless reschedule to the idle thread.
@@ -575,10 +579,10 @@ static void SleepThread(s64 nanoseconds) {
     Core::System::GetInstance().PrepareReschedule();
 }
 
-/// Signal process wide key atomic
+/// Wait process wide key atomic
 static ResultCode WaitProcessWideKeyAtomic(VAddr mutex_addr, VAddr condition_variable_addr,
                                            Handle thread_handle, s64 nano_seconds) {
-    NGLOG_TRACE(
+    LOG_TRACE(
         Kernel_SVC,
         "called mutex_addr={:X}, condition_variable_addr={:X}, thread_handle=0x{:08X}, timeout={}",
         mutex_addr, condition_variable_addr, thread_handle, nano_seconds);
@@ -605,8 +609,8 @@ static ResultCode WaitProcessWideKeyAtomic(VAddr mutex_addr, VAddr condition_var
 
 /// Signal process wide key
 static ResultCode SignalProcessWideKey(VAddr condition_variable_addr, s32 target) {
-    NGLOG_TRACE(Kernel_SVC, "called, condition_variable_addr=0x{:X}, target=0x{:08X}",
-                condition_variable_addr, target);
+    LOG_TRACE(Kernel_SVC, "called, condition_variable_addr=0x{:X}, target=0x{:08X}",
+              condition_variable_addr, target);
 
     auto RetrieveWaitingThreads =
         [](size_t core_index, std::vector<SharedPtr<Thread>>& waiting_threads, VAddr condvar_addr) {
@@ -684,6 +688,57 @@ static ResultCode SignalProcessWideKey(VAddr condition_variable_addr, s32 target
     return RESULT_SUCCESS;
 }
 
+// Wait for an address (via Address Arbiter)
+static ResultCode WaitForAddress(VAddr address, u32 type, s32 value, s64 timeout) {
+    LOG_WARNING(Kernel_SVC, "called, address=0x{:X}, type=0x{:X}, value=0x{:X}, timeout={}",
+                address, type, value, timeout);
+    // If the passed address is a kernel virtual address, return invalid memory state.
+    if (Memory::IsKernelVirtualAddress(address)) {
+        return ERR_INVALID_ADDRESS_STATE;
+    }
+    // If the address is not properly aligned to 4 bytes, return invalid address.
+    if (address % sizeof(u32) != 0) {
+        return ERR_INVALID_ADDRESS;
+    }
+
+    switch (static_cast<AddressArbiter::ArbitrationType>(type)) {
+    case AddressArbiter::ArbitrationType::WaitIfLessThan:
+        return AddressArbiter::WaitForAddressIfLessThan(address, value, timeout, false);
+    case AddressArbiter::ArbitrationType::DecrementAndWaitIfLessThan:
+        return AddressArbiter::WaitForAddressIfLessThan(address, value, timeout, true);
+    case AddressArbiter::ArbitrationType::WaitIfEqual:
+        return AddressArbiter::WaitForAddressIfEqual(address, value, timeout);
+    default:
+        return ERR_INVALID_ENUM_VALUE;
+    }
+}
+
+// Signals to an address (via Address Arbiter)
+static ResultCode SignalToAddress(VAddr address, u32 type, s32 value, s32 num_to_wake) {
+    LOG_WARNING(Kernel_SVC, "called, address=0x{:X}, type=0x{:X}, value=0x{:X}, num_to_wake=0x{:X}",
+                address, type, value, num_to_wake);
+    // If the passed address is a kernel virtual address, return invalid memory state.
+    if (Memory::IsKernelVirtualAddress(address)) {
+        return ERR_INVALID_ADDRESS_STATE;
+    }
+    // If the address is not properly aligned to 4 bytes, return invalid address.
+    if (address % sizeof(u32) != 0) {
+        return ERR_INVALID_ADDRESS;
+    }
+
+    switch (static_cast<AddressArbiter::SignalType>(type)) {
+    case AddressArbiter::SignalType::Signal:
+        return AddressArbiter::SignalToAddress(address, num_to_wake);
+    case AddressArbiter::SignalType::IncrementAndSignalIfEqual:
+        return AddressArbiter::IncrementAndSignalToAddressIfEqual(address, value, num_to_wake);
+    case AddressArbiter::SignalType::ModifyByWaitingCountAndSignalIfEqual:
+        return AddressArbiter::ModifyByWaitingCountAndSignalToAddressIfEqual(address, value,
+                                                                             num_to_wake);
+    default:
+        return ERR_INVALID_ENUM_VALUE;
+    }
+}
+
 /// This returns the total CPU ticks elapsed since the CPU was powered-on
 static u64 GetSystemTick() {
     const u64 result{CoreTiming::GetTicks()};
@@ -696,13 +751,13 @@ static u64 GetSystemTick() {
 
 /// Close a handle
 static ResultCode CloseHandle(Handle handle) {
-    NGLOG_TRACE(Kernel_SVC, "Closing handle 0x{:08X}", handle);
+    LOG_TRACE(Kernel_SVC, "Closing handle 0x{:08X}", handle);
     return g_handle_table.Close(handle);
 }
 
 /// Reset an event
 static ResultCode ResetSignal(Handle handle) {
-    NGLOG_WARNING(Kernel_SVC, "(STUBBED) called handle 0x{:08X}", handle);
+    LOG_WARNING(Kernel_SVC, "(STUBBED) called handle 0x{:08X}", handle);
     auto event = g_handle_table.Get<Event>(handle);
     ASSERT(event != nullptr);
     event->Clear();
@@ -711,14 +766,14 @@ static ResultCode ResetSignal(Handle handle) {
 
 /// Creates a TransferMemory object
 static ResultCode CreateTransferMemory(Handle* handle, VAddr addr, u64 size, u32 permissions) {
-    NGLOG_WARNING(Kernel_SVC, "(STUBBED) called addr=0x{:X}, size=0x{:X}, perms=0x{:08X}", addr,
-                  size, permissions);
+    LOG_WARNING(Kernel_SVC, "(STUBBED) called addr=0x{:X}, size=0x{:X}, perms=0x{:08X}", addr, size,
+                permissions);
     *handle = 0;
     return RESULT_SUCCESS;
 }
 
 static ResultCode GetThreadCoreMask(Handle thread_handle, u32* core, u64* mask) {
-    NGLOG_TRACE(Kernel_SVC, "called, handle=0x{:08X}", thread_handle);
+    LOG_TRACE(Kernel_SVC, "called, handle=0x{:08X}", thread_handle);
 
     const SharedPtr<Thread> thread = g_handle_table.Get<Thread>(thread_handle);
     if (!thread) {
@@ -732,14 +787,39 @@ static ResultCode GetThreadCoreMask(Handle thread_handle, u32* core, u64* mask)
 }
 
 static ResultCode SetThreadCoreMask(Handle thread_handle, u32 core, u64 mask) {
-    NGLOG_TRACE(Kernel_SVC, "called, handle=0x{:08X}, mask=0x{:08X}, core=0x{:X}", thread_handle,
-                mask, core);
+    LOG_DEBUG(Kernel_SVC, "called, handle=0x{:08X}, mask=0x{:16X}, core=0x{:X}", thread_handle,
+              mask, core);
 
     const SharedPtr<Thread> thread = g_handle_table.Get<Thread>(thread_handle);
     if (!thread) {
         return ERR_INVALID_HANDLE;
     }
 
+    if (core == THREADPROCESSORID_DEFAULT) {
+        ASSERT(thread->owner_process->ideal_processor != THREADPROCESSORID_DEFAULT);
+        // Set the target CPU to the one specified in the process' exheader.
+        core = thread->owner_process->ideal_processor;
+        mask = 1ull << core;
+    }
+
+    if (mask == 0) {
+        return ResultCode(ErrorModule::Kernel, ErrCodes::InvalidCombination);
+    }
+
+    /// This value is used to only change the affinity mask without changing the current ideal core.
+    static constexpr u32 OnlyChangeMask = static_cast<u32>(-3);
+
+    if (core == OnlyChangeMask) {
+        core = thread->ideal_core;
+    } else if (core >= Core::NUM_CPU_CORES && core != -1) {
+        return ResultCode(ErrorModule::Kernel, ErrCodes::InvalidProcessorId);
+    }
+
+    // Error out if the input core isn't enabled in the input mask.
+    if (core < Core::NUM_CPU_CORES && (mask & (1ull << core)) == 0) {
+        return ResultCode(ErrorModule::Kernel, ErrCodes::InvalidCombination);
+    }
+
     thread->ChangeCore(core, mask);
 
     return RESULT_SUCCESS;
@@ -747,8 +827,8 @@ static ResultCode SetThreadCoreMask(Handle thread_handle, u32 core, u64 mask) {
 
 static ResultCode CreateSharedMemory(Handle* handle, u64 size, u32 local_permissions,
                                      u32 remote_permissions) {
-    NGLOG_TRACE(Kernel_SVC, "called, size=0x{:X}, localPerms=0x{:08X}, remotePerms=0x{:08X}", size,
-                local_permissions, remote_permissions);
+    LOG_TRACE(Kernel_SVC, "called, size=0x{:X}, localPerms=0x{:08X}, remotePerms=0x{:08X}", size,
+              local_permissions, remote_permissions);
     auto sharedMemHandle =
         SharedMemory::Create(g_handle_table.Get<Process>(KernelHandle::CurrentProcess), size,
                              static_cast<MemoryPermission>(local_permissions),
@@ -759,7 +839,7 @@ static ResultCode CreateSharedMemory(Handle* handle, u64 size, u32 local_permiss
 }
 
 static ResultCode ClearEvent(Handle handle) {
-    NGLOG_TRACE(Kernel_SVC, "called, event=0x{:08X}", handle);
+    LOG_TRACE(Kernel_SVC, "called, event=0x{:08X}", handle);
 
     SharedPtr<Event> evt = g_handle_table.Get<Event>(handle);
     if (evt == nullptr)
@@ -831,8 +911,8 @@ static const FunctionDef SVC_Table[] = {
     {0x31, nullptr, "GetResourceLimitCurrentValue"},
     {0x32, SvcWrap<SetThreadActivity>, "SetThreadActivity"},
     {0x33, SvcWrap<GetThreadContext>, "GetThreadContext"},
-    {0x34, nullptr, "WaitForAddress"},
-    {0x35, nullptr, "SignalToAddress"},
+    {0x34, SvcWrap<WaitForAddress>, "WaitForAddress"},
+    {0x35, SvcWrap<SignalToAddress>, "SignalToAddress"},
     {0x36, nullptr, "Unknown"},
     {0x37, nullptr, "Unknown"},
     {0x38, nullptr, "Unknown"},
@@ -911,7 +991,7 @@ static const FunctionDef SVC_Table[] = {
 
 static const FunctionDef* GetSVCInfo(u32 func_num) {
     if (func_num >= std::size(SVC_Table)) {
-        NGLOG_ERROR(Kernel_SVC, "Unknown svc=0x{:02X}", func_num);
+        LOG_ERROR(Kernel_SVC, "Unknown svc=0x{:02X}", func_num);
         return nullptr;
     }
     return &SVC_Table[func_num];
@@ -930,10 +1010,10 @@ void CallSVC(u32 immediate) {
         if (info->func) {
             info->func();
         } else {
-            NGLOG_CRITICAL(Kernel_SVC, "Unimplemented SVC function {}(..)", info->name);
+            LOG_CRITICAL(Kernel_SVC, "Unimplemented SVC function {}(..)", info->name);
         }
     } else {
-        NGLOG_CRITICAL(Kernel_SVC, "Unknown SVC function 0x{:X}", immediate);
+        LOG_CRITICAL(Kernel_SVC, "Unknown SVC function 0x{:X}", immediate);
     }
 }
 

src/core/hle/kernel/svc_wrap.h

@@ -179,6 +179,20 @@ void SvcWrap() {
     FuncReturn(retval);
 }
 
+template <ResultCode func(u64, u32, s32, s64)>
+void SvcWrap() {
+    FuncReturn(
+        func(PARAM(0), (u32)(PARAM(1) & 0xFFFFFFFF), (s32)(PARAM(2) & 0xFFFFFFFF), (s64)PARAM(3))
+            .raw);
+}
+
+template <ResultCode func(u64, u32, s32, s32)>
+void SvcWrap() {
+    FuncReturn(func(PARAM(0), (u32)(PARAM(1) & 0xFFFFFFFF), (s32)(PARAM(2) & 0xFFFFFFFF),
+                    (s32)(PARAM(3) & 0xFFFFFFFF))
+                   .raw);
+}
+
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // Function wrappers that return type u32
 

src/core/hle/kernel/thread.cpp

@@ -104,7 +104,7 @@ static void ThreadWakeupCallback(u64 thread_handle, int cycles_late) {
     const auto proper_handle = static_cast<Handle>(thread_handle);
     SharedPtr<Thread> thread = wakeup_callback_handle_table.Get<Thread>(proper_handle);
     if (thread == nullptr) {
-        NGLOG_CRITICAL(Kernel, "Callback fired for invalid thread {:08X}", proper_handle);
+        LOG_CRITICAL(Kernel, "Callback fired for invalid thread {:08X}", proper_handle);
         return;
     }
 
@@ -133,8 +133,16 @@ static void ThreadWakeupCallback(u64 thread_handle, int cycles_late) {
 
         auto lock_owner = thread->lock_owner;
         // Threads waking up by timeout from WaitProcessWideKey do not perform priority inheritance
-        // and don't have a lock owner.
-        ASSERT(lock_owner == nullptr);
+        // and don't have a lock owner unless SignalProcessWideKey was called first and the thread
+        // wasn't awakened due to the mutex already being acquired.
+        if (lock_owner) {
+            lock_owner->RemoveMutexWaiter(thread);
+        }
+    }
+
+    if (thread->arb_wait_address != 0) {
+        ASSERT(thread->status == THREADSTATUS_WAIT_ARB);
+        thread->arb_wait_address = 0;
     }
 
     if (resume)
@@ -176,6 +184,7 @@ void Thread::ResumeFromWait() {
     case THREADSTATUS_WAIT_SLEEP:
     case THREADSTATUS_WAIT_IPC:
     case THREADSTATUS_WAIT_MUTEX:
+    case THREADSTATUS_WAIT_ARB:
         break;
 
     case THREADSTATUS_READY:
@@ -281,19 +290,19 @@ ResultVal<SharedPtr<Thread>> Thread::Create(std::string name, VAddr entry_point,
                                             SharedPtr<Process> owner_process) {
     // Check if priority is in ranged. Lowest priority -> highest priority id.
     if (priority > THREADPRIO_LOWEST) {
-        NGLOG_ERROR(Kernel_SVC, "Invalid thread priority: {}", priority);
+        LOG_ERROR(Kernel_SVC, "Invalid thread priority: {}", priority);
         return ERR_OUT_OF_RANGE;
     }
 
     if (processor_id > THREADPROCESSORID_MAX) {
-        NGLOG_ERROR(Kernel_SVC, "Invalid processor id: {}", processor_id);
+        LOG_ERROR(Kernel_SVC, "Invalid processor id: {}", processor_id);
         return ERR_OUT_OF_RANGE_KERNEL;
     }
 
     // TODO(yuriks): Other checks, returning 0xD9001BEA
 
     if (!Memory::IsValidVirtualAddress(*owner_process, entry_point)) {
-        NGLOG_ERROR(Kernel_SVC, "(name={}): invalid entry {:016X}", name, entry_point);
+        LOG_ERROR(Kernel_SVC, "(name={}): invalid entry {:016X}", name, entry_point);
         // TODO (bunnei): Find the correct error code to use here
         return ResultCode(-1);
     }
@@ -334,8 +343,8 @@ ResultVal<SharedPtr<Thread>> Thread::Create(std::string name, VAddr entry_point,
         auto& linheap_memory = memory_region->linear_heap_memory;
 
         if (linheap_memory->size() + Memory::PAGE_SIZE > memory_region->size) {
-            NGLOG_ERROR(Kernel_SVC,
-                        "Not enough space in region to allocate a new TLS page for thread");
+            LOG_ERROR(Kernel_SVC,
+                      "Not enough space in region to allocate a new TLS page for thread");
             return ERR_OUT_OF_MEMORY;
         }
 
@@ -460,13 +469,13 @@ void Thread::UpdatePriority() {
 
 void Thread::ChangeCore(u32 core, u64 mask) {
     ideal_core = core;
-    mask = mask;
+    affinity_mask = mask;
 
     if (status != THREADSTATUS_READY) {
         return;
     }
 
-    boost::optional<s32> new_processor_id{GetNextProcessorId(mask)};
+    boost::optional<s32> new_processor_id{GetNextProcessorId(affinity_mask)};
 
     if (!new_processor_id) {
         new_processor_id = processor_id;
@@ -476,7 +485,7 @@ void Thread::ChangeCore(u32 core, u64 mask) {
         new_processor_id = ideal_core;
     }
 
-    ASSERT(new_processor_id < 4);
+    ASSERT(*new_processor_id < 4);
 
     // Add thread to new core's scheduler
     auto& next_scheduler = Core::System().GetInstance().Scheduler(*new_processor_id);

src/core/hle/kernel/thread.h

@@ -45,6 +45,7 @@ enum ThreadStatus {
     THREADSTATUS_WAIT_SYNCH_ANY, ///< Waiting due to WaitSynch1 or WaitSynchN with wait_all = false
     THREADSTATUS_WAIT_SYNCH_ALL, ///< Waiting due to WaitSynchronizationN with wait_all = true
     THREADSTATUS_WAIT_MUTEX,     ///< Waiting due to an ArbitrateLock/WaitProcessWideKey svc
+    THREADSTATUS_WAIT_ARB,       ///< Waiting due to a SignalToAddress/WaitForAddress svc
     THREADSTATUS_DORMANT,        ///< Created but not yet made ready
     THREADSTATUS_DEAD            ///< Run to completion, or forcefully terminated
 };
@@ -230,6 +231,9 @@ public:
     VAddr mutex_wait_address; ///< If waiting on a Mutex, this is the mutex address
     Handle wait_handle;       ///< The handle used to wait for the mutex.
 
+    // If waiting for an AddressArbiter, this is the address being waited on.
+    VAddr arb_wait_address{0};
+
     std::string name;
 
     /// Handle used by guest emulated application to access this thread

src/core/hle/kernel/timer.cpp

@@ -78,7 +78,7 @@ void Timer::WakeupAllWaitingThreads() {
 }
 
 void Timer::Signal(int cycles_late) {
-    NGLOG_TRACE(Kernel, "Timer {} fired", GetObjectId());
+    LOG_TRACE(Kernel, "Timer {} fired", GetObjectId());
 
     signaled = true;
 
@@ -98,7 +98,7 @@ static void TimerCallback(u64 timer_handle, int cycles_late) {
         timer_callback_handle_table.Get<Timer>(static_cast<Handle>(timer_handle));
 
     if (timer == nullptr) {
-        NGLOG_CRITICAL(Kernel, "Callback fired for invalid timer {:016X}", timer_handle);
+        LOG_CRITICAL(Kernel, "Callback fired for invalid timer {:016X}", timer_handle);
         return;
     }
 

src/core/hle/kernel/vm_manager.cpp

@@ -242,12 +242,12 @@ void VMManager::RefreshMemoryBlockMappings(const std::vector<u8>* block) {
 void VMManager::LogLayout() const {
     for (const auto& p : vma_map) {
         const VirtualMemoryArea& vma = p.second;
-        NGLOG_DEBUG(Kernel, "{:016X} - {:016X} size: {:016X} {}{}{} {}", vma.base,
-                    vma.base + vma.size, vma.size,
-                    (u8)vma.permissions & (u8)VMAPermission::Read ? 'R' : '-',
-                    (u8)vma.permissions & (u8)VMAPermission::Write ? 'W' : '-',
-                    (u8)vma.permissions & (u8)VMAPermission::Execute ? 'X' : '-',
-                    GetMemoryStateName(vma.meminfo_state));
+        LOG_DEBUG(Kernel, "{:016X} - {:016X} size: {:016X} {}{}{} {}", vma.base,
+                  vma.base + vma.size, vma.size,
+                  (u8)vma.permissions & (u8)VMAPermission::Read ? 'R' : '-',
+                  (u8)vma.permissions & (u8)VMAPermission::Write ? 'W' : '-',
+                  (u8)vma.permissions & (u8)VMAPermission::Execute ? 'X' : '-',
+                  GetMemoryStateName(vma.meminfo_state));
     }
 }
 
@@ -392,22 +392,22 @@ void VMManager::UpdatePageTableForVMA(const VirtualMemoryArea& vma) {
 }
 
 u64 VMManager::GetTotalMemoryUsage() {
-    NGLOG_WARNING(Kernel, "(STUBBED) called");
+    LOG_WARNING(Kernel, "(STUBBED) called");
     return 0xF8000000;
 }
 
 u64 VMManager::GetTotalHeapUsage() {
-    NGLOG_WARNING(Kernel, "(STUBBED) called");
+    LOG_WARNING(Kernel, "(STUBBED) called");
     return 0x0;
 }
 
 VAddr VMManager::GetAddressSpaceBaseAddr() {
-    NGLOG_WARNING(Kernel, "(STUBBED) called");
+    LOG_WARNING(Kernel, "(STUBBED) called");
     return 0x8000000;
 }
 
 u64 VMManager::GetAddressSpaceSize() {
-    NGLOG_WARNING(Kernel, "(STUBBED) called");
+    LOG_WARNING(Kernel, "(STUBBED) called");
     return MAX_ADDRESS;
 }
 

src/core/hle/service/acc/acc.cpp

@@ -47,7 +47,7 @@ public:
 
 private:
     void GetBase(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_ACC, "(STUBBED) called");
+        LOG_WARNING(Service_ACC, "(STUBBED) called");
         ProfileBase profile_base{};
         IPC::ResponseBuilder rb{ctx, 16};
         rb.Push(RESULT_SUCCESS);
@@ -72,14 +72,14 @@ public:
 
 private:
     void CheckAvailability(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_ACC, "(STUBBED) called");
+        LOG_WARNING(Service_ACC, "(STUBBED) called");
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
         rb.Push(true); // TODO: Check when this is supposed to return true and when not
     }
 
     void GetAccountId(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_ACC, "(STUBBED) called");
+        LOG_WARNING(Service_ACC, "(STUBBED) called");
         IPC::ResponseBuilder rb{ctx, 4};
         rb.Push(RESULT_SUCCESS);
         rb.Push<u64>(0x12345678ABCDEF);
@@ -87,14 +87,14 @@ private:
 };
 
 void Module::Interface::GetUserExistence(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_ACC, "(STUBBED) called");
+    LOG_WARNING(Service_ACC, "(STUBBED) called");
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(RESULT_SUCCESS);
     rb.Push(true); // TODO: Check when this is supposed to return true and when not
 }
 
 void Module::Interface::ListAllUsers(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_ACC, "(STUBBED) called");
+    LOG_WARNING(Service_ACC, "(STUBBED) called");
     constexpr std::array<u128, 10> user_ids{DEFAULT_USER_ID};
     ctx.WriteBuffer(user_ids.data(), user_ids.size());
     IPC::ResponseBuilder rb{ctx, 2};
@@ -102,7 +102,7 @@ void Module::Interface::ListAllUsers(Kernel::HLERequestContext& ctx) {
 }
 
 void Module::Interface::ListOpenUsers(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_ACC, "(STUBBED) called");
+    LOG_WARNING(Service_ACC, "(STUBBED) called");
     constexpr std::array<u128, 10> user_ids{DEFAULT_USER_ID};
     ctx.WriteBuffer(user_ids.data(), user_ids.size());
     IPC::ResponseBuilder rb{ctx, 2};
@@ -113,11 +113,11 @@ void Module::Interface::GetProfile(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<IProfile>();
-    NGLOG_DEBUG(Service_ACC, "called");
+    LOG_DEBUG(Service_ACC, "called");
 }
 
 void Module::Interface::InitializeApplicationInfo(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_ACC, "(STUBBED) called");
+    LOG_WARNING(Service_ACC, "(STUBBED) called");
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
@@ -126,11 +126,11 @@ void Module::Interface::GetBaasAccountManagerForApplication(Kernel::HLERequestCo
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<IManagerForApplication>();
-    NGLOG_DEBUG(Service_ACC, "called");
+    LOG_DEBUG(Service_ACC, "called");
 }
 
 void Module::Interface::GetLastOpenedUser(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_ACC, "(STUBBED) called");
+    LOG_WARNING(Service_ACC, "(STUBBED) called");
     IPC::ResponseBuilder rb{ctx, 6};
     rb.Push(RESULT_SUCCESS);
     rb.PushRaw(DEFAULT_USER_ID);

src/core/hle/service/am/am.cpp

@@ -3,6 +3,7 @@
 // Refer to the license.txt file included.
 
 #include <cinttypes>
+#include <stack>
 #include "core/file_sys/filesystem.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/kernel/event.h"
@@ -29,14 +30,14 @@ IWindowController::IWindowController() : ServiceFramework("IWindowController") {
 }
 
 void IWindowController::GetAppletResourceUserId(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(RESULT_SUCCESS);
     rb.Push<u64>(0);
 }
 
 void IWindowController::AcquireForegroundRights(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
@@ -55,20 +56,20 @@ IAudioController::IAudioController() : ServiceFramework("IAudioController") {
 }
 
 void IAudioController::SetExpectedMasterVolume(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
 
 void IAudioController::GetMainAppletExpectedMasterVolume(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(RESULT_SUCCESS);
     rb.Push(volume);
 }
 
 void IAudioController::GetLibraryAppletExpectedMasterVolume(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(RESULT_SUCCESS);
     rb.Push(volume);
@@ -154,7 +155,7 @@ ISelfController::ISelfController(std::shared_ptr<NVFlinger::NVFlinger> nvflinger
     RegisterHandlers(functions);
 
     launchable_event =
-        Kernel::Event::Create(Kernel::ResetType::OneShot, "ISelfController:LaunchableEvent");
+        Kernel::Event::Create(Kernel::ResetType::Sticky, "ISelfController:LaunchableEvent");
 }
 
 void ISelfController::SetFocusHandlingMode(Kernel::HLERequestContext& ctx) {
@@ -173,14 +174,14 @@ void ISelfController::SetFocusHandlingMode(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void ISelfController::SetRestartMessageEnabled(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void ISelfController::SetPerformanceModeChangedNotification(Kernel::HLERequestContext& ctx) {
@@ -191,14 +192,14 @@ void ISelfController::SetPerformanceModeChangedNotification(Kernel::HLERequestCo
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called flag={}", flag);
+    LOG_WARNING(Service_AM, "(STUBBED) called flag={}", flag);
 }
 
 void ISelfController::SetScreenShotPermission(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void ISelfController::SetOperationModeChangedNotification(Kernel::HLERequestContext& ctx) {
@@ -209,7 +210,7 @@ void ISelfController::SetOperationModeChangedNotification(Kernel::HLERequestCont
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called flag={}", flag);
+    LOG_WARNING(Service_AM, "(STUBBED) called flag={}", flag);
 }
 
 void ISelfController::SetOutOfFocusSuspendingEnabled(Kernel::HLERequestContext& ctx) {
@@ -222,21 +223,21 @@ void ISelfController::SetOutOfFocusSuspendingEnabled(Kernel::HLERequestContext&
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called enabled={}", enabled);
+    LOG_WARNING(Service_AM, "(STUBBED) called enabled={}", enabled);
 }
 
 void ISelfController::LockExit(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void ISelfController::UnlockExit(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void ISelfController::GetLibraryAppletLaunchableEvent(Kernel::HLERequestContext& ctx) {
@@ -246,7 +247,7 @@ void ISelfController::GetLibraryAppletLaunchableEvent(Kernel::HLERequestContext&
     rb.Push(RESULT_SUCCESS);
     rb.PushCopyObjects(launchable_event);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void ISelfController::CreateManagedDisplayLayer(Kernel::HLERequestContext& ctx) {
@@ -259,14 +260,14 @@ void ISelfController::CreateManagedDisplayLayer(Kernel::HLERequestContext& ctx)
     rb.Push(RESULT_SUCCESS);
     rb.Push(layer_id);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void ISelfController::SetHandlesRequestToDisplay(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 ICommonStateGetter::ICommonStateGetter() : ServiceFramework("ICommonStateGetter") {
@@ -310,7 +311,7 @@ void ICommonStateGetter::GetEventHandle(Kernel::HLERequestContext& ctx) {
     rb.Push(RESULT_SUCCESS);
     rb.PushCopyObjects(event);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void ICommonStateGetter::ReceiveMessage(Kernel::HLERequestContext& ctx) {
@@ -318,7 +319,7 @@ void ICommonStateGetter::ReceiveMessage(Kernel::HLERequestContext& ctx) {
     rb.Push(RESULT_SUCCESS);
     rb.Push<u32>(15);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void ICommonStateGetter::GetCurrentFocusState(Kernel::HLERequestContext& ctx) {
@@ -326,7 +327,7 @@ void ICommonStateGetter::GetCurrentFocusState(Kernel::HLERequestContext& ctx) {
     rb.Push(RESULT_SUCCESS);
     rb.Push(static_cast<u8>(FocusState::InFocus));
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void ICommonStateGetter::GetOperationMode(Kernel::HLERequestContext& ctx) {
@@ -335,7 +336,7 @@ void ICommonStateGetter::GetOperationMode(Kernel::HLERequestContext& ctx) {
     rb.Push(RESULT_SUCCESS);
     rb.Push(static_cast<u8>(use_docked_mode ? OperationMode::Docked : OperationMode::Handheld));
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void ICommonStateGetter::GetPerformanceMode(Kernel::HLERequestContext& ctx) {
@@ -345,22 +346,103 @@ void ICommonStateGetter::GetPerformanceMode(Kernel::HLERequestContext& ctx) {
     rb.Push(static_cast<u32>(use_docked_mode ? APM::PerformanceMode::Docked
                                              : APM::PerformanceMode::Handheld));
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
+class IStorageAccessor final : public ServiceFramework<IStorageAccessor> {
+public:
+    explicit IStorageAccessor(std::vector<u8> buffer)
+        : ServiceFramework("IStorageAccessor"), buffer(std::move(buffer)) {
+        static const FunctionInfo functions[] = {
+            {0, &IStorageAccessor::GetSize, "GetSize"},
+            {10, &IStorageAccessor::Write, "Write"},
+            {11, &IStorageAccessor::Read, "Read"},
+        };
+        RegisterHandlers(functions);
+    }
+
+private:
+    std::vector<u8> buffer;
+
+    void GetSize(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 4};
+
+        rb.Push(RESULT_SUCCESS);
+        rb.Push(static_cast<u64>(buffer.size()));
+
+        LOG_DEBUG(Service_AM, "called");
+    }
+
+    void Write(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+
+        const u64 offset{rp.Pop<u64>()};
+        const std::vector<u8> data{ctx.ReadBuffer()};
+
+        ASSERT(offset + data.size() <= buffer.size());
+
+        std::memcpy(&buffer[offset], data.data(), data.size());
+
+        IPC::ResponseBuilder rb{rp.MakeBuilder(2, 0, 0)};
+        rb.Push(RESULT_SUCCESS);
+
+        LOG_DEBUG(Service_AM, "called, offset={}", offset);
+    }
+
+    void Read(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+
+        const u64 offset{rp.Pop<u64>()};
+        const size_t size{ctx.GetWriteBufferSize()};
+
+        ASSERT(offset + size <= buffer.size());
+
+        ctx.WriteBuffer(buffer.data() + offset, size);
+
+        IPC::ResponseBuilder rb{rp.MakeBuilder(2, 0, 0)};
+        rb.Push(RESULT_SUCCESS);
+
+        LOG_DEBUG(Service_AM, "called, offset={}", offset);
+    }
+};
+
+class IStorage final : public ServiceFramework<IStorage> {
+public:
+    explicit IStorage(std::vector<u8> buffer)
+        : ServiceFramework("IStorage"), buffer(std::move(buffer)) {
+        static const FunctionInfo functions[] = {
+            {0, &IStorage::Open, "Open"},
+            {1, nullptr, "OpenTransferStorage"},
+        };
+        RegisterHandlers(functions);
+    }
+
+private:
+    std::vector<u8> buffer;
+
+    void Open(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface<AM::IStorageAccessor>(buffer);
+
+        LOG_DEBUG(Service_AM, "called");
+    }
+};
+
 class ILibraryAppletAccessor final : public ServiceFramework<ILibraryAppletAccessor> {
 public:
     explicit ILibraryAppletAccessor() : ServiceFramework("ILibraryAppletAccessor") {
         static const FunctionInfo functions[] = {
             {0, &ILibraryAppletAccessor::GetAppletStateChangedEvent, "GetAppletStateChangedEvent"},
             {1, nullptr, "IsCompleted"},
-            {10, nullptr, "Start"},
+            {10, &ILibraryAppletAccessor::Start, "Start"},
             {20, nullptr, "RequestExit"},
             {25, nullptr, "Terminate"},
-            {30, nullptr, "GetResult"},
+            {30, &ILibraryAppletAccessor::GetResult, "GetResult"},
             {50, nullptr, "SetOutOfFocusApplicationSuspendingEnabled"},
-            {100, nullptr, "PushInData"},
-            {101, nullptr, "PopOutData"},
+            {100, &ILibraryAppletAccessor::PushInData, "PushInData"},
+            {101, &ILibraryAppletAccessor::PopOutData, "PopOutData"},
             {102, nullptr, "PushExtraStorage"},
             {103, nullptr, "PushInteractiveInData"},
             {104, nullptr, "PopInteractiveOutData"},
@@ -385,9 +467,44 @@ private:
         rb.Push(RESULT_SUCCESS);
         rb.PushCopyObjects(state_changed_event);
 
-        NGLOG_WARNING(Service_AM, "(STUBBED) called");
+        LOG_WARNING(Service_AM, "(STUBBED) called");
     }
 
+    void GetResult(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+
+        LOG_WARNING(Service_AM, "(STUBBED) called");
+    }
+
+    void Start(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+
+        LOG_WARNING(Service_AM, "(STUBBED) called");
+    }
+
+    void PushInData(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        storage_stack.push(rp.PopIpcInterface<AM::IStorage>());
+
+        IPC::ResponseBuilder rb{rp.MakeBuilder(2, 0, 0)};
+        rb.Push(RESULT_SUCCESS);
+
+        LOG_DEBUG(Service_AM, "called");
+    }
+
+    void PopOutData(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface<AM::IStorage>(std::move(storage_stack.top()));
+
+        storage_stack.pop();
+
+        LOG_DEBUG(Service_AM, "called");
+    }
+
+    std::stack<std::shared_ptr<AM::IStorage>> storage_stack;
     Kernel::SharedPtr<Kernel::Event> state_changed_event;
 };
 
@@ -396,7 +513,7 @@ ILibraryAppletCreator::ILibraryAppletCreator() : ServiceFramework("ILibraryApple
         {0, &ILibraryAppletCreator::CreateLibraryApplet, "CreateLibraryApplet"},
         {1, nullptr, "TerminateAllLibraryApplets"},
         {2, nullptr, "AreAnyLibraryAppletsLeft"},
-        {10, nullptr, "CreateStorage"},
+        {10, &ILibraryAppletCreator::CreateStorage, "CreateStorage"},
         {11, nullptr, "CreateTransferMemoryStorage"},
         {12, nullptr, "CreateHandleStorage"},
     };
@@ -409,75 +526,20 @@ void ILibraryAppletCreator::CreateLibraryApplet(Kernel::HLERequestContext& ctx)
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<AM::ILibraryAppletAccessor>();
 
-    NGLOG_DEBUG(Service_AM, "called");
+    LOG_DEBUG(Service_AM, "called");
 }
 
-class IStorageAccessor final : public ServiceFramework<IStorageAccessor> {
-public:
-    explicit IStorageAccessor(std::vector<u8> buffer)
-        : ServiceFramework("IStorageAccessor"), buffer(std::move(buffer)) {
-        static const FunctionInfo functions[] = {
-            {0, &IStorageAccessor::GetSize, "GetSize"},
-            {10, nullptr, "Write"},
-            {11, &IStorageAccessor::Read, "Read"},
-        };
-        RegisterHandlers(functions);
-    }
+void ILibraryAppletCreator::CreateStorage(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 size{rp.Pop<u64>()};
+    std::vector<u8> buffer(size);
 
-private:
-    std::vector<u8> buffer;
+    IPC::ResponseBuilder rb{rp.MakeBuilder(2, 0, 1)};
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface<AM::IStorage>(std::move(buffer));
 
-    void GetSize(Kernel::HLERequestContext& ctx) {
-        IPC::ResponseBuilder rb{ctx, 4};
-
-        rb.Push(RESULT_SUCCESS);
-        rb.Push(static_cast<u64>(buffer.size()));
-
-        NGLOG_DEBUG(Service_AM, "called");
-    }
-
-    void Read(Kernel::HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-
-        u64 offset = rp.Pop<u64>();
-
-        const size_t size{ctx.GetWriteBufferSize()};
-
-        ASSERT(offset + size <= buffer.size());
-
-        ctx.WriteBuffer(buffer.data() + offset, size);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-
-        rb.Push(RESULT_SUCCESS);
-
-        NGLOG_DEBUG(Service_AM, "called");
-    }
-};
-
-class IStorage final : public ServiceFramework<IStorage> {
-public:
-    explicit IStorage(std::vector<u8> buffer)
-        : ServiceFramework("IStorage"), buffer(std::move(buffer)) {
-        static const FunctionInfo functions[] = {
-            {0, &IStorage::Open, "Open"},
-            {1, nullptr, "OpenTransferStorage"},
-        };
-        RegisterHandlers(functions);
-    }
-
-private:
-    std::vector<u8> buffer;
-
-    void Open(Kernel::HLERequestContext& ctx) {
-        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-
-        rb.Push(RESULT_SUCCESS);
-        rb.PushIpcInterface<AM::IStorageAccessor>(buffer);
-
-        NGLOG_DEBUG(Service_AM, "called");
-    }
-};
+    LOG_DEBUG(Service_AM, "called, size={}", size);
+}
 
 IApplicationFunctions::IApplicationFunctions() : ServiceFramework("IApplicationFunctions") {
     static const FunctionInfo functions[] = {
@@ -499,7 +561,7 @@ IApplicationFunctions::IApplicationFunctions() : ServiceFramework("IApplicationF
         {32, nullptr, "BeginBlockingHomeButton"},
         {33, nullptr, "EndBlockingHomeButton"},
         {40, &IApplicationFunctions::NotifyRunning, "NotifyRunning"},
-        {50, nullptr, "GetPseudoDeviceId"},
+        {50, &IApplicationFunctions::GetPseudoDeviceId, "GetPseudoDeviceId"},
         {60, nullptr, "SetMediaPlaybackStateForApplication"},
         {65, nullptr, "IsGamePlayRecordingSupported"},
         {66, &IApplicationFunctions::InitializeGamePlayRecording, "InitializeGamePlayRecording"},
@@ -540,26 +602,26 @@ void IApplicationFunctions::PopLaunchParameter(Kernel::HLERequestContext& ctx) {
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<AM::IStorage>(buffer);
 
-    NGLOG_DEBUG(Service_AM, "called");
+    LOG_DEBUG(Service_AM, "called");
 }
 
 void IApplicationFunctions::CreateApplicationAndRequestToStartForQuest(
     Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void IApplicationFunctions::EnsureSaveData(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     u128 uid = rp.PopRaw<u128>();
 
-    NGLOG_WARNING(Service, "(STUBBED) called uid = {:016X}{:016X}", uid[1], uid[0]);
+    LOG_WARNING(Service, "(STUBBED) called uid = {:016X}{:016X}", uid[1], uid[0]);
 
     IPC::ResponseBuilder rb{ctx, 4};
 
     FileSys::Path unused;
-    auto savedata = FileSystem::OpenFileSystem(FileSystem::Type::SaveData, unused);
+    auto savedata = FileSystem::OpenFileSystem(FileSystem::Type::SaveData);
     if (savedata.Failed()) {
         // Create the save data and return an error indicating that the operation was performed.
         FileSystem::FormatFileSystem(FileSystem::Type::SaveData);
@@ -582,7 +644,7 @@ void IApplicationFunctions::SetTerminateResult(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called, result=0x{:08X}", result);
+    LOG_WARNING(Service_AM, "(STUBBED) called, result=0x{:08X}", result);
 }
 
 void IApplicationFunctions::GetDisplayVersion(Kernel::HLERequestContext& ctx) {
@@ -590,7 +652,7 @@ void IApplicationFunctions::GetDisplayVersion(Kernel::HLERequestContext& ctx) {
     rb.Push(RESULT_SUCCESS);
     rb.Push<u64>(1);
     rb.Push<u64>(0);
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void IApplicationFunctions::GetDesiredLanguage(Kernel::HLERequestContext& ctx) {
@@ -598,20 +660,20 @@ void IApplicationFunctions::GetDesiredLanguage(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(RESULT_SUCCESS);
     rb.Push(static_cast<u64>(Service::Set::LanguageCode::EN_US));
-    NGLOG_DEBUG(Service_AM, "called");
+    LOG_DEBUG(Service_AM, "called");
 }
 
 void IApplicationFunctions::InitializeGamePlayRecording(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void IApplicationFunctions::SetGamePlayRecordingState(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void IApplicationFunctions::NotifyRunning(Kernel::HLERequestContext& ctx) {
@@ -619,7 +681,18 @@ void IApplicationFunctions::NotifyRunning(Kernel::HLERequestContext& ctx) {
     rb.Push(RESULT_SUCCESS);
     rb.Push<u8>(0); // Unknown, seems to be ignored by official processes
 
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+}
+
+void IApplicationFunctions::GetPseudoDeviceId(Kernel::HLERequestContext& ctx) {
+    IPC::ResponseBuilder rb{ctx, 6};
+    rb.Push(RESULT_SUCCESS);
+
+    // Returns a 128-bit UUID
+    rb.Push<u64>(0);
+    rb.Push<u64>(0);
+
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 void InstallInterfaces(SM::ServiceManager& service_manager,
@@ -644,7 +717,7 @@ IHomeMenuFunctions::IHomeMenuFunctions() : ServiceFramework("IHomeMenuFunctions"
 void IHomeMenuFunctions::RequestToGetForeground(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
-    NGLOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
 IGlobalStateController::IGlobalStateController() : ServiceFramework("IGlobalStateController") {

src/core/hle/service/am/am.h

@@ -121,6 +121,7 @@ public:
 
 private:
     void CreateLibraryApplet(Kernel::HLERequestContext& ctx);
+    void CreateStorage(Kernel::HLERequestContext& ctx);
 };
 
 class IApplicationFunctions final : public ServiceFramework<IApplicationFunctions> {
@@ -137,6 +138,7 @@ private:
     void InitializeGamePlayRecording(Kernel::HLERequestContext& ctx);
     void SetGamePlayRecordingState(Kernel::HLERequestContext& ctx);
     void NotifyRunning(Kernel::HLERequestContext& ctx);
+    void GetPseudoDeviceId(Kernel::HLERequestContext& ctx);
 };
 
 class IHomeMenuFunctions final : public ServiceFramework<IHomeMenuFunctions> {

src/core/hle/service/am/applet_ae.cpp

@@ -33,63 +33,63 @@ private:
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<ICommonStateGetter>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetSelfController(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<ISelfController>(nvflinger);
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetWindowController(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IWindowController>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetAudioController(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IAudioController>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetDisplayController(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IDisplayController>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetProcessWindingController(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IProcessWindingController>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetDebugFunctions(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IDebugFunctions>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetLibraryAppletCreator(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<ILibraryAppletCreator>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetApplicationFunctions(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IApplicationFunctions>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     std::shared_ptr<NVFlinger::NVFlinger> nvflinger;
@@ -120,70 +120,70 @@ private:
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<ICommonStateGetter>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetSelfController(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<ISelfController>(nvflinger);
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetWindowController(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IWindowController>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetAudioController(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IAudioController>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetDisplayController(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IDisplayController>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetDebugFunctions(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IDebugFunctions>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetLibraryAppletCreator(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<ILibraryAppletCreator>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetHomeMenuFunctions(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IHomeMenuFunctions>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetGlobalStateController(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IGlobalStateController>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetApplicationCreator(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IApplicationCreator>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
     std::shared_ptr<NVFlinger::NVFlinger> nvflinger;
 };
@@ -192,21 +192,21 @@ void AppletAE::OpenSystemAppletProxy(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<ISystemAppletProxy>(nvflinger);
-    NGLOG_DEBUG(Service_AM, "called");
+    LOG_DEBUG(Service_AM, "called");
 }
 
 void AppletAE::OpenLibraryAppletProxy(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<ILibraryAppletProxy>(nvflinger);
-    NGLOG_DEBUG(Service_AM, "called");
+    LOG_DEBUG(Service_AM, "called");
 }
 
 void AppletAE::OpenLibraryAppletProxyOld(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<ILibraryAppletProxy>(nvflinger);
-    NGLOG_DEBUG(Service_AM, "called");
+    LOG_DEBUG(Service_AM, "called");
 }
 
 AppletAE::AppletAE(std::shared_ptr<NVFlinger::NVFlinger> nvflinger)

src/core/hle/service/am/applet_oe.cpp

@@ -33,56 +33,56 @@ private:
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IAudioController>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetDisplayController(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IDisplayController>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetDebugFunctions(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IDebugFunctions>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetWindowController(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IWindowController>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetSelfController(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<ISelfController>(nvflinger);
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetCommonStateGetter(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<ICommonStateGetter>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetLibraryAppletCreator(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<ILibraryAppletCreator>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     void GetApplicationFunctions(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IApplicationFunctions>();
-        NGLOG_DEBUG(Service_AM, "called");
+        LOG_DEBUG(Service_AM, "called");
     }
 
     std::shared_ptr<NVFlinger::NVFlinger> nvflinger;
@@ -92,7 +92,7 @@ void AppletOE::OpenApplicationProxy(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<IApplicationProxy>(nvflinger);
-    NGLOG_DEBUG(Service_AM, "called");
+    LOG_DEBUG(Service_AM, "called");
 }
 
 AppletOE::AppletOE(std::shared_ptr<NVFlinger::NVFlinger> nvflinger)

src/core/hle/service/aoc/aoc_u.cpp

@@ -27,14 +27,14 @@ void AOC_U::CountAddOnContent(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(RESULT_SUCCESS);
     rb.Push<u64>(0);
-    NGLOG_WARNING(Service_AOC, "(STUBBED) called");
+    LOG_WARNING(Service_AOC, "(STUBBED) called");
 }
 
 void AOC_U::ListAddOnContent(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(RESULT_SUCCESS);
     rb.Push<u64>(0);
-    NGLOG_WARNING(Service_AOC, "(STUBBED) called");
+    LOG_WARNING(Service_AOC, "(STUBBED) called");
 }
 
 void InstallInterfaces(SM::ServiceManager& service_manager) {

src/core/hle/service/apm/interface.cpp

@@ -29,8 +29,8 @@ private:
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
 
-        NGLOG_WARNING(Service_APM, "(STUBBED) called mode={} config={}", static_cast<u32>(mode),
-                      config);
+        LOG_WARNING(Service_APM, "(STUBBED) called mode={} config={}", static_cast<u32>(mode),
+                    config);
     }
 
     void GetPerformanceConfiguration(Kernel::HLERequestContext& ctx) {
@@ -42,7 +42,7 @@ private:
         rb.Push(RESULT_SUCCESS);
         rb.Push<u32>(0); // Performance configuration
 
-        NGLOG_WARNING(Service_APM, "(STUBBED) called mode={}", static_cast<u32>(mode));
+        LOG_WARNING(Service_APM, "(STUBBED) called mode={}", static_cast<u32>(mode));
     }
 };
 

src/core/hle/service/audio/audio.cpp

@@ -8,6 +8,7 @@
 #include "core/hle/service/audio/audrec_u.h"
 #include "core/hle/service/audio/audren_u.h"
 #include "core/hle/service/audio/codecctl.h"
+#include "core/hle/service/audio/hwopus.h"
 
 namespace Service::Audio {
 
@@ -17,6 +18,7 @@ void InstallInterfaces(SM::ServiceManager& service_manager) {
     std::make_shared<AudRecU>()->InstallAsService(service_manager);
     std::make_shared<AudRenU>()->InstallAsService(service_manager);
     std::make_shared<CodecCtl>()->InstallAsService(service_manager);
+    std::make_shared<HwOpus>()->InstallAsService(service_manager);
 }
 
 } // namespace Service::Audio

src/core/hle/service/audio/audout_u.cpp

@@ -60,14 +60,14 @@ public:
 
 private:
     void GetAudioOutState(Kernel::HLERequestContext& ctx) {
-        NGLOG_DEBUG(Service_Audio, "called");
+        LOG_DEBUG(Service_Audio, "called");
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
         rb.Push(static_cast<u32>(audio_out_state));
     }
 
     void StartAudioOut(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+        LOG_WARNING(Service_Audio, "(STUBBED) called");
 
         // Start audio
         audio_out_state = AudioState::Started;
@@ -77,7 +77,7 @@ private:
     }
 
     void StopAudioOut(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+        LOG_WARNING(Service_Audio, "(STUBBED) called");
 
         // Stop audio
         audio_out_state = AudioState::Stopped;
@@ -89,7 +89,7 @@ private:
     }
 
     void RegisterBufferEvent(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+        LOG_WARNING(Service_Audio, "(STUBBED) called");
 
         IPC::ResponseBuilder rb{ctx, 2, 1};
         rb.Push(RESULT_SUCCESS);
@@ -97,7 +97,7 @@ private:
     }
 
     void AppendAudioOutBuffer(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+        LOG_WARNING(Service_Audio, "(STUBBED) called");
         IPC::RequestParser rp{ctx};
 
         const u64 key{rp.Pop<u64>()};
@@ -108,7 +108,7 @@ private:
     }
 
     void GetReleasedAudioOutBuffer(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+        LOG_WARNING(Service_Audio, "(STUBBED) called");
 
         // TODO(st4rk): This is how libtransistor currently implements the
         // GetReleasedAudioOutBuffer, it should return the key (a VAddr) to the app and this address
@@ -164,7 +164,7 @@ private:
 };
 
 void AudOutU::ListAudioOuts(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+    LOG_WARNING(Service_Audio, "(STUBBED) called");
     IPC::RequestParser rp{ctx};
 
     const std::string audio_interface = "AudioInterface";
@@ -180,7 +180,7 @@ void AudOutU::ListAudioOuts(Kernel::HLERequestContext& ctx) {
 }
 
 void AudOutU::OpenAudioOut(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+    LOG_WARNING(Service_Audio, "(STUBBED) called");
 
     if (!audio_out_interface) {
         audio_out_interface = std::make_shared<IAudioOut>();

src/core/hle/service/audio/audren_u.cpp

@@ -17,7 +17,8 @@ constexpr u64 audio_ticks{static_cast<u64>(CoreTiming::BASE_CLOCK_RATE / 200)};
 
 class IAudioRenderer final : public ServiceFramework<IAudioRenderer> {
 public:
-    IAudioRenderer() : ServiceFramework("IAudioRenderer") {
+    IAudioRenderer(AudioRendererParameter audren_params)
+        : ServiceFramework("IAudioRenderer"), worker_params(audren_params) {
         static const FunctionInfo functions[] = {
             {0, nullptr, "GetAudioRendererSampleRate"},
             {1, nullptr, "GetAudioRendererSampleCount"},
@@ -46,6 +47,7 @@ public:
 
         // Start the audio event
         CoreTiming::ScheduleEvent(audio_ticks, audio_event);
+        voice_status_list.reserve(worker_params.voice_count);
     }
     ~IAudioRenderer() {
         CoreTiming::UnscheduleEvent(audio_event, 0);
@@ -57,30 +59,63 @@ private:
     }
 
     void RequestUpdateAudioRenderer(Kernel::HLERequestContext& ctx) {
-        NGLOG_DEBUG(Service_Audio, "{}", ctx.Description());
-        AudioRendererResponseData response_data{};
+        UpdateDataHeader config{};
+        auto buf = ctx.ReadBuffer();
+        std::memcpy(&config, buf.data(), sizeof(UpdateDataHeader));
+        u32 memory_pool_count = worker_params.effect_count + (worker_params.voice_count * 4);
 
-        response_data.section_0_size =
-            static_cast<u32>(response_data.state_entries.size() * sizeof(AudioRendererStateEntry));
-        response_data.section_1_size = static_cast<u32>(response_data.section_1.size());
-        response_data.section_2_size = static_cast<u32>(response_data.section_2.size());
-        response_data.section_3_size = static_cast<u32>(response_data.section_3.size());
-        response_data.section_4_size = static_cast<u32>(response_data.section_4.size());
-        response_data.section_5_size = static_cast<u32>(response_data.section_5.size());
-        response_data.total_size = sizeof(AudioRendererResponseData);
+        std::vector<MemoryPoolInfo> mem_pool_info(memory_pool_count);
+        std::memcpy(mem_pool_info.data(),
+                    buf.data() + sizeof(UpdateDataHeader) + config.behavior_size,
+                    memory_pool_count * sizeof(MemoryPoolInfo));
 
-        for (unsigned i = 0; i < response_data.state_entries.size(); i++) {
-            // 4 = Busy and 5 = Ready?
-            response_data.state_entries[i].state = 5;
+        std::vector<VoiceInfo> voice_info(worker_params.voice_count);
+        std::memcpy(voice_info.data(),
+                    buf.data() + sizeof(UpdateDataHeader) + config.behavior_size +
+                        config.memory_pools_size + config.voice_resource_size,
+                    worker_params.voice_count * sizeof(VoiceInfo));
+
+        UpdateDataHeader response_data{worker_params};
+
+        ASSERT(ctx.GetWriteBufferSize() == response_data.total_size);
+
+        std::vector<u8> output(response_data.total_size);
+        std::memcpy(output.data(), &response_data, sizeof(UpdateDataHeader));
+        std::vector<MemoryPoolEntry> memory_pool(memory_pool_count);
+        for (unsigned i = 0; i < memory_pool.size(); i++) {
+            if (mem_pool_info[i].pool_state == MemoryPoolStates::RequestAttach)
+                memory_pool[i].state = MemoryPoolStates::Attached;
+            else if (mem_pool_info[i].pool_state == MemoryPoolStates::RequestDetach)
+                memory_pool[i].state = MemoryPoolStates::Detached;
+            else
+                memory_pool[i].state = mem_pool_info[i].pool_state;
         }
+        std::memcpy(output.data() + sizeof(UpdateDataHeader), memory_pool.data(),
+                    response_data.memory_pools_size);
 
-        ctx.WriteBuffer(&response_data, response_data.total_size);
+        for (unsigned i = 0; i < voice_info.size(); i++) {
+            if (voice_info[i].is_new) {
+                voice_status_list[i].played_sample_count = 0;
+                voice_status_list[i].wave_buffer_consumed = 0;
+            } else if (voice_info[i].play_state == (u8)PlayStates::Started) {
+                for (u32 buff_idx = 0; buff_idx < voice_info[i].wave_buffer_count; buff_idx++) {
+                    voice_status_list[i].played_sample_count +=
+                        (voice_info[i].wave_buffer[buff_idx].end_sample_offset -
+                         voice_info[i].wave_buffer[buff_idx].start_sample_offset) /
+                        2;
+                    voice_status_list[i].wave_buffer_consumed++;
+                }
+            }
+        }
+        std::memcpy(output.data() + sizeof(UpdateDataHeader) + response_data.memory_pools_size,
+                    voice_status_list.data(), response_data.voices_size);
+
+        ctx.WriteBuffer(output);
 
         IPC::ResponseBuilder rb{ctx, 2};
-
         rb.Push(RESULT_SUCCESS);
 
-        NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+        LOG_WARNING(Service_Audio, "(STUBBED) called");
     }
 
     void StartAudioRenderer(Kernel::HLERequestContext& ctx) {
@@ -88,7 +123,7 @@ private:
 
         rb.Push(RESULT_SUCCESS);
 
-        NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+        LOG_WARNING(Service_Audio, "(STUBBED) called");
     }
 
     void StopAudioRenderer(Kernel::HLERequestContext& ctx) {
@@ -96,7 +131,7 @@ private:
 
         rb.Push(RESULT_SUCCESS);
 
-        NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+        LOG_WARNING(Service_Audio, "(STUBBED) called");
     }
 
     void QuerySystemEvent(Kernel::HLERequestContext& ctx) {
@@ -106,51 +141,132 @@ private:
         rb.Push(RESULT_SUCCESS);
         rb.PushCopyObjects(system_event);
 
-        NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+        LOG_WARNING(Service_Audio, "(STUBBED) called");
     }
 
-    struct AudioRendererStateEntry {
-        u32_le state;
+    enum class MemoryPoolStates : u32 { // Should be LE
+        Invalid = 0x0,
+        Unknown = 0x1,
+        RequestDetach = 0x2,
+        Detached = 0x3,
+        RequestAttach = 0x4,
+        Attached = 0x5,
+        Released = 0x6,
+    };
+
+    enum class PlayStates : u8 {
+        Started = 0,
+        Stopped = 1,
+    };
+
+    struct MemoryPoolEntry {
+        MemoryPoolStates state;
         u32_le unknown_4;
         u32_le unknown_8;
         u32_le unknown_c;
     };
-    static_assert(sizeof(AudioRendererStateEntry) == 0x10,
-                  "AudioRendererStateEntry has wrong size");
+    static_assert(sizeof(MemoryPoolEntry) == 0x10, "MemoryPoolEntry has wrong size");
 
-    struct AudioRendererResponseData {
-        u32_le unknown_0;
-        u32_le section_5_size;
-        u32_le section_0_size;
-        u32_le section_1_size;
-        u32_le unknown_10;
-        u32_le section_2_size;
-        u32_le unknown_18;
-        u32_le section_3_size;
-        u32_le section_4_size;
-        u32_le unknown_24;
-        u32_le unknown_28;
-        u32_le unknown_2c;
-        u32_le unknown_30;
-        u32_le unknown_34;
-        u32_le unknown_38;
-        u32_le total_size;
-
-        std::array<AudioRendererStateEntry, 0x18e> state_entries;
-
-        std::array<u8, 0x600> section_1;
-        std::array<u8, 0xe0> section_2;
-        std::array<u8, 0x20> section_3;
-        std::array<u8, 0x10> section_4;
-        std::array<u8, 0xb0> section_5;
+    struct MemoryPoolInfo {
+        u64_le pool_address;
+        u64_le pool_size;
+        MemoryPoolStates pool_state;
+        INSERT_PADDING_WORDS(3); // Unknown
     };
-    static_assert(sizeof(AudioRendererResponseData) == 0x20e0,
-                  "AudioRendererResponseData has wrong size");
+    static_assert(sizeof(MemoryPoolInfo) == 0x20, "MemoryPoolInfo has wrong size");
+
+    struct UpdateDataHeader {
+        UpdateDataHeader() {}
+
+        UpdateDataHeader(const AudioRendererParameter& config) {
+            revision = Common::MakeMagic('R', 'E', 'V', '4'); // 5.1.0 Revision
+            behavior_size = 0xb0;
+            memory_pools_size = (config.effect_count + (config.voice_count * 4)) * 0x10;
+            voices_size = config.voice_count * 0x10;
+            effects_size = config.effect_count * 0x10;
+            sinks_size = config.sink_count * 0x20;
+            performance_manager_size = 0x10;
+            total_size = sizeof(UpdateDataHeader) + behavior_size + memory_pools_size +
+                         voices_size + effects_size + sinks_size + performance_manager_size;
+        }
+
+        u32_le revision;
+        u32_le behavior_size;
+        u32_le memory_pools_size;
+        u32_le voices_size;
+        u32_le voice_resource_size;
+        u32_le effects_size;
+        u32_le mixes_size;
+        u32_le sinks_size;
+        u32_le performance_manager_size;
+        INSERT_PADDING_WORDS(6);
+        u32_le total_size;
+    };
+    static_assert(sizeof(UpdateDataHeader) == 0x40, "UpdateDataHeader has wrong size");
+
+    struct BiquadFilter {
+        u8 enable;
+        INSERT_PADDING_BYTES(1);
+        s16_le numerator[3];
+        s16_le denominator[2];
+    };
+    static_assert(sizeof(BiquadFilter) == 0xc, "BiquadFilter has wrong size");
+
+    struct WaveBuffer {
+        u64_le buffer_addr;
+        u64_le buffer_sz;
+        s32_le start_sample_offset;
+        s32_le end_sample_offset;
+        u8 loop;
+        u8 end_of_stream;
+        u8 sent_to_server;
+        INSERT_PADDING_BYTES(5);
+        u64 context_addr;
+        u64 context_sz;
+        INSERT_PADDING_BYTES(8);
+    };
+    static_assert(sizeof(WaveBuffer) == 0x38, "WaveBuffer has wrong size");
+
+    struct VoiceInfo {
+        u32_le id;
+        u32_le node_id;
+        u8 is_new;
+        u8 is_in_use;
+        u8 play_state;
+        u8 sample_format;
+        u32_le sample_rate;
+        u32_le priority;
+        u32_le sorting_order;
+        u32_le channel_count;
+        float_le pitch;
+        float_le volume;
+        BiquadFilter biquad_filter[2];
+        u32_le wave_buffer_count;
+        u16_le wave_buffer_head;
+        INSERT_PADDING_BYTES(6);
+        u64_le additional_params_addr;
+        u64_le additional_params_sz;
+        u32_le mix_id;
+        u32_le splitter_info_id;
+        WaveBuffer wave_buffer[4];
+        u32_le voice_channel_resource_ids[6];
+        INSERT_PADDING_BYTES(24);
+    };
+    static_assert(sizeof(VoiceInfo) == 0x170, "VoiceInfo is wrong size");
+
+    struct VoiceOutStatus {
+        u64_le played_sample_count;
+        u32_le wave_buffer_consumed;
+        INSERT_PADDING_WORDS(1);
+    };
+    static_assert(sizeof(VoiceOutStatus) == 0x10, "VoiceOutStatus has wrong size");
 
     /// This is used to trigger the audio event callback.
     CoreTiming::EventType* audio_event;
 
     Kernel::SharedPtr<Kernel::Event> system_event;
+    AudioRendererParameter worker_params;
+    std::vector<VoiceOutStatus> voice_status_list;
 };
 
 class IAudioDevice final : public ServiceFramework<IAudioDevice> {
@@ -179,7 +295,7 @@ public:
 
 private:
     void ListAudioDeviceName(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+        LOG_WARNING(Service_Audio, "(STUBBED) called");
         IPC::RequestParser rp{ctx};
 
         const std::string audio_interface = "AudioInterface";
@@ -191,7 +307,7 @@ private:
     }
 
     void SetAudioDeviceOutputVolume(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+        LOG_WARNING(Service_Audio, "(STUBBED) called");
 
         IPC::RequestParser rp{ctx};
         f32 volume = static_cast<f32>(rp.Pop<u32>());
@@ -204,7 +320,7 @@ private:
     }
 
     void GetActiveAudioDeviceName(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+        LOG_WARNING(Service_Audio, "(STUBBED) called");
         IPC::RequestParser rp{ctx};
 
         const std::string audio_interface = "AudioDevice";
@@ -216,7 +332,7 @@ private:
     }
 
     void QueryAudioDeviceSystemEvent(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+        LOG_WARNING(Service_Audio, "(STUBBED) called");
 
         buffer_event->Signal();
 
@@ -226,7 +342,7 @@ private:
     }
 
     void GetActiveChannelCount(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_Audio, "(STUBBED) called");
+        LOG_WARNING(Service_Audio, "(STUBBED) called");
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
         rb.Push<u32>(1);
@@ -248,31 +364,33 @@ AudRenU::AudRenU() : ServiceFramework("audren:u") {
 }
 
 void AudRenU::OpenAudioRenderer(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    auto params = rp.PopRaw<AudioRendererParameter>();
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
 
     rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface<Audio::IAudioRenderer>();
+    rb.PushIpcInterface<Audio::IAudioRenderer>(std::move(params));
 
-    NGLOG_DEBUG(Service_Audio, "called");
+    LOG_DEBUG(Service_Audio, "called");
 }
 
 void AudRenU::GetAudioRendererWorkBufferSize(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
-    auto params = rp.PopRaw<WorkerBufferParameters>();
+    auto params = rp.PopRaw<AudioRendererParameter>();
 
-    u64 buffer_sz = Common::AlignUp(4 * params.unknown8, 0x40);
-    buffer_sz += params.unknownC * 1024;
-    buffer_sz += 0x940 * (params.unknownC + 1);
+    u64 buffer_sz = Common::AlignUp(4 * params.unknown_8, 0x40);
+    buffer_sz += params.unknown_c * 1024;
+    buffer_sz += 0x940 * (params.unknown_c + 1);
     buffer_sz += 0x3F0 * params.voice_count;
-    buffer_sz += Common::AlignUp(8 * (params.unknownC + 1), 0x10);
+    buffer_sz += Common::AlignUp(8 * (params.unknown_c + 1), 0x10);
     buffer_sz += Common::AlignUp(8 * params.voice_count, 0x10);
     buffer_sz +=
-        Common::AlignUp((0x3C0 * (params.sink_count + params.unknownC) + 4 * params.sample_count) *
-                            (params.unknown8 + 6),
+        Common::AlignUp((0x3C0 * (params.sink_count + params.unknown_c) + 4 * params.sample_count) *
+                            (params.unknown_8 + 6),
                         0x40);
 
-    if (IsFeatureSupported(AudioFeatures::Splitter, params.magic)) {
-        u32 count = params.unknownC + 1;
+    if (IsFeatureSupported(AudioFeatures::Splitter, params.revision)) {
+        u32 count = params.unknown_c + 1;
         u64 node_count = Common::AlignUp(count, 0x40);
         u64 node_state_buffer_sz =
             4 * (node_count * node_count) + 0xC * node_count + 2 * (node_count / 8);
@@ -287,20 +405,20 @@ void AudRenU::GetAudioRendererWorkBufferSize(Kernel::HLERequestContext& ctx) {
     }
 
     buffer_sz += 0x20 * (params.effect_count + 4 * params.voice_count) + 0x50;
-    if (IsFeatureSupported(AudioFeatures::Splitter, params.magic)) {
-        buffer_sz += 0xE0 * params.unknown2c;
+    if (IsFeatureSupported(AudioFeatures::Splitter, params.revision)) {
+        buffer_sz += 0xE0 * params.unknown_2c;
         buffer_sz += 0x20 * params.splitter_count;
-        buffer_sz += Common::AlignUp(4 * params.unknown2c, 0x10);
+        buffer_sz += Common::AlignUp(4 * params.unknown_2c, 0x10);
     }
     buffer_sz = Common::AlignUp(buffer_sz, 0x40) + 0x170 * params.sink_count;
     u64 output_sz = buffer_sz + 0x280 * params.sink_count + 0x4B0 * params.effect_count +
                     ((params.voice_count * 256) | 0x40);
 
-    if (params.unknown1c >= 1) {
+    if (params.unknown_1c >= 1) {
         output_sz = Common::AlignUp(((16 * params.sink_count + 16 * params.effect_count +
                                       16 * params.voice_count + 16) +
                                      0x658) *
-                                            (params.unknown1c + 1) +
+                                            (params.unknown_1c + 1) +
                                         0xc0,
                                     0x40) +
                     output_sz;
@@ -312,7 +430,7 @@ void AudRenU::GetAudioRendererWorkBufferSize(Kernel::HLERequestContext& ctx) {
     rb.Push(RESULT_SUCCESS);
     rb.Push<u64>(output_sz);
 
-    NGLOG_DEBUG(Service_Audio, "called, buffer_size=0x{:X}", output_sz);
+    LOG_DEBUG(Service_Audio, "called, buffer_size=0x{:X}", output_sz);
 }
 
 void AudRenU::GetAudioDevice(Kernel::HLERequestContext& ctx) {
@@ -321,14 +439,14 @@ void AudRenU::GetAudioDevice(Kernel::HLERequestContext& ctx) {
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<Audio::IAudioDevice>();
 
-    NGLOG_DEBUG(Service_Audio, "called");
+    LOG_DEBUG(Service_Audio, "called");
 }
 
 bool AudRenU::IsFeatureSupported(AudioFeatures feature, u32_le revision) const {
     u32_be version_num = (revision - Common::MakeMagic('R', 'E', 'V', '0')); // Byte swap
     switch (feature) {
     case AudioFeatures::Splitter:
-        return version_num >= 2;
+        return version_num >= 2u;
     default:
         return false;
     }

src/core/hle/service/audio/audren_u.h

@@ -12,6 +12,24 @@ class HLERequestContext;
 
 namespace Service::Audio {
 
+struct AudioRendererParameter {
+    u32_le sample_rate;
+    u32_le sample_count;
+    u32_le unknown_8;
+    u32_le unknown_c;
+    u32_le voice_count;
+    u32_le sink_count;
+    u32_le effect_count;
+    u32_le unknown_1c;
+    u8 unknown_20;
+    INSERT_PADDING_BYTES(3);
+    u32_le splitter_count;
+    u32_le unknown_2c;
+    INSERT_PADDING_WORDS(1);
+    u32_le revision;
+};
+static_assert(sizeof(AudioRendererParameter) == 52, "AudioRendererParameter is an invalid size");
+
 class AudRenU final : public ServiceFramework<AudRenU> {
 public:
     explicit AudRenU();
@@ -22,25 +40,6 @@ private:
     void GetAudioRendererWorkBufferSize(Kernel::HLERequestContext& ctx);
     void GetAudioDevice(Kernel::HLERequestContext& ctx);
 
-    struct WorkerBufferParameters {
-        u32_le sample_rate;
-        u32_le sample_count;
-        u32_le unknown8;
-        u32_le unknownC;
-        u32_le voice_count;
-        u32_le sink_count;
-        u32_le effect_count;
-        u32_le unknown1c;
-        u8 unknown20;
-        u8 padding1[3];
-        u32_le splitter_count;
-        u32_le unknown2c;
-        u8 padding2[4];
-        u32_le magic;
-    };
-    static_assert(sizeof(WorkerBufferParameters) == 52,
-                  "WorkerBufferParameters is an invalid size");
-
     enum class AudioFeatures : u32 {
         Splitter,
     };

src/core/hle/service/audio/hwopus.cpp

@@ -0,0 +1,29 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/logging/log.h"
+#include "core/hle/ipc_helpers.h"
+#include "core/hle/kernel/hle_ipc.h"
+#include "core/hle/service/audio/hwopus.h"
+
+namespace Service::Audio {
+
+void HwOpus::GetWorkBufferSize(Kernel::HLERequestContext& ctx) {
+    LOG_WARNING(Service_Audio, "(STUBBED) called");
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(RESULT_SUCCESS);
+    rb.Push<u32>(0x4000);
+}
+
+HwOpus::HwOpus() : ServiceFramework("hwopus") {
+    static const FunctionInfo functions[] = {
+        {0, nullptr, "Initialize"},
+        {1, &HwOpus::GetWorkBufferSize, "GetWorkBufferSize"},
+        {2, nullptr, "InitializeMultiStream"},
+        {3, nullptr, "GetWorkBufferSizeMultiStream"},
+    };
+    RegisterHandlers(functions);
+}
+
+} // namespace Service::Audio

src/core/hle/service/audio/hwopus.h

@@ -0,0 +1,20 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+namespace Service::Audio {
+
+class HwOpus final : public ServiceFramework<HwOpus> {
+public:
+    explicit HwOpus();
+    ~HwOpus() = default;
+
+private:
+    void GetWorkBufferSize(Kernel::HLERequestContext& ctx);
+};
+
+} // namespace Service::Audio

src/core/hle/service/bcat/module.cpp

@@ -36,7 +36,7 @@ void Module::Interface::CreateBcatService(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<IBcatService>();
-    NGLOG_DEBUG(Service_BCAT, "called");
+    LOG_DEBUG(Service_BCAT, "called");
 }
 
 Module::Interface::Interface(std::shared_ptr<Module> module, const char* name)

src/core/hle/service/fatal/fatal.cpp

@@ -16,13 +16,13 @@ Module::Interface::Interface(std::shared_ptr<Module> module, const char* name)
 void Module::Interface::ThrowFatalWithPolicy(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp(ctx);
     u32 error_code = rp.Pop<u32>();
-    NGLOG_WARNING(Service_Fatal, "(STUBBED) called, error_code=0x{:X}", error_code);
+    LOG_WARNING(Service_Fatal, "(STUBBED) called, error_code=0x{:X}", error_code);
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
 
 void Module::Interface::ThrowFatalWithCpuContext(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_Fatal, "(STUBBED) called");
+    LOG_WARNING(Service_Fatal, "(STUBBED) called");
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }

src/core/hle/service/filesystem/filesystem.cpp

@@ -2,37 +2,222 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <boost/container/flat_map.hpp>
+#include "boost/container/flat_map.hpp"
+#include "common/assert.h"
+#include "common/common_paths.h"
 #include "common/file_util.h"
+#include "core/core.h"
+#include "core/file_sys/errors.h"
 #include "core/file_sys/filesystem.h"
-#include "core/file_sys/savedata_factory.h"
-#include "core/file_sys/sdmc_factory.h"
+#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs_offset.h"
+#include "core/file_sys/vfs_real.h"
+#include "core/hle/kernel/process.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/filesystem/fsp_srv.h"
 
 namespace Service::FileSystem {
 
+// Size of emulated sd card free space, reported in bytes.
+// Just using 32GB because thats reasonable
+// TODO(DarkLordZach): Eventually make this configurable in settings.
+constexpr u64 EMULATED_SD_REPORTED_SIZE = 32000000000;
+
+static FileSys::VirtualDir GetDirectoryRelativeWrapped(FileSys::VirtualDir base,
+                                                       const std::string& dir_name) {
+    if (dir_name == "." || dir_name == "" || dir_name == "/" || dir_name == "\\")
+        return base;
+
+    return base->GetDirectoryRelative(dir_name);
+}
+
+VfsDirectoryServiceWrapper::VfsDirectoryServiceWrapper(FileSys::VirtualDir backing_)
+    : backing(backing_) {}
+
+std::string VfsDirectoryServiceWrapper::GetName() const {
+    return backing->GetName();
+}
+
+ResultCode VfsDirectoryServiceWrapper::CreateFile(const std::string& path, u64 size) const {
+    auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path));
+    auto file = dir->CreateFile(FileUtil::GetFilename(path));
+    if (file == nullptr)
+        return ResultCode(-1);
+    if (!file->Resize(size))
+        return ResultCode(-1);
+    return RESULT_SUCCESS;
+}
+
+ResultCode VfsDirectoryServiceWrapper::DeleteFile(const std::string& path) const {
+    auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path));
+    if (!backing->DeleteFile(FileUtil::GetFilename(path)))
+        return ResultCode(-1);
+    return RESULT_SUCCESS;
+}
+
+ResultCode VfsDirectoryServiceWrapper::CreateDirectory(const std::string& path) const {
+    auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path));
+    if (dir == nullptr && FileUtil::GetFilename(FileUtil::GetParentPath(path)).empty())
+        dir = backing;
+    auto new_dir = dir->CreateSubdirectory(FileUtil::GetFilename(path));
+    if (new_dir == nullptr)
+        return ResultCode(-1);
+    return RESULT_SUCCESS;
+}
+
+ResultCode VfsDirectoryServiceWrapper::DeleteDirectory(const std::string& path) const {
+    auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path));
+    if (!dir->DeleteSubdirectory(FileUtil::GetFilename(path)))
+        return ResultCode(-1);
+    return RESULT_SUCCESS;
+}
+
+ResultCode VfsDirectoryServiceWrapper::DeleteDirectoryRecursively(const std::string& path) const {
+    auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path));
+    if (!dir->DeleteSubdirectoryRecursive(FileUtil::GetFilename(path)))
+        return ResultCode(-1);
+    return RESULT_SUCCESS;
+}
+
+ResultCode VfsDirectoryServiceWrapper::RenameFile(const std::string& src_path,
+                                                  const std::string& dest_path) const {
+    auto src = backing->GetFileRelative(src_path);
+    if (FileUtil::GetParentPath(src_path) == FileUtil::GetParentPath(dest_path)) {
+        // Use more-optimized vfs implementation rename.
+        if (src == nullptr)
+            return FileSys::ERROR_PATH_NOT_FOUND;
+        if (!src->Rename(FileUtil::GetFilename(dest_path)))
+            return ResultCode(-1);
+        return RESULT_SUCCESS;
+    }
+
+    // Move by hand -- TODO(DarkLordZach): Optimize
+    auto c_res = CreateFile(dest_path, src->GetSize());
+    if (c_res != RESULT_SUCCESS)
+        return c_res;
+
+    auto dest = backing->GetFileRelative(dest_path);
+    ASSERT_MSG(dest != nullptr, "Newly created file with success cannot be found.");
+
+    ASSERT_MSG(dest->WriteBytes(src->ReadAllBytes()) == src->GetSize(),
+               "Could not write all of the bytes but everything else has succeded.");
+
+    if (!src->GetContainingDirectory()->DeleteFile(FileUtil::GetFilename(src_path)))
+        return ResultCode(-1);
+
+    return RESULT_SUCCESS;
+}
+
+ResultCode VfsDirectoryServiceWrapper::RenameDirectory(const std::string& src_path,
+                                                       const std::string& dest_path) const {
+    auto src = GetDirectoryRelativeWrapped(backing, src_path);
+    if (FileUtil::GetParentPath(src_path) == FileUtil::GetParentPath(dest_path)) {
+        // Use more-optimized vfs implementation rename.
+        if (src == nullptr)
+            return FileSys::ERROR_PATH_NOT_FOUND;
+        if (!src->Rename(FileUtil::GetFilename(dest_path)))
+            return ResultCode(-1);
+        return RESULT_SUCCESS;
+    }
+
+    // TODO(DarkLordZach): Implement renaming across the tree (move).
+    ASSERT_MSG(false,
+               "Could not rename directory with path \"{}\" to new path \"{}\" because parent dirs "
+               "don't match -- UNIMPLEMENTED",
+               src_path, dest_path);
+
+    return ResultCode(-1);
+}
+
+ResultVal<FileSys::VirtualFile> VfsDirectoryServiceWrapper::OpenFile(const std::string& path,
+                                                                     FileSys::Mode mode) const {
+    auto file = backing->GetFileRelative(path);
+    if (file == nullptr)
+        return FileSys::ERROR_PATH_NOT_FOUND;
+
+    if ((static_cast<u32>(mode) & static_cast<u32>(FileSys::Mode::Append)) != 0) {
+        return MakeResult<FileSys::VirtualFile>(
+            std::make_shared<FileSys::OffsetVfsFile>(file, 0, file->GetSize()));
+    }
+
+    return MakeResult<FileSys::VirtualFile>(file);
+}
+
+ResultVal<FileSys::VirtualDir> VfsDirectoryServiceWrapper::OpenDirectory(const std::string& path) {
+    auto dir = GetDirectoryRelativeWrapped(backing, path);
+    if (dir == nullptr)
+        return ResultCode(-1);
+    return MakeResult(dir);
+}
+
+u64 VfsDirectoryServiceWrapper::GetFreeSpaceSize() const {
+    if (backing->IsWritable())
+        return EMULATED_SD_REPORTED_SIZE;
+
+    return 0;
+}
+
+ResultVal<FileSys::EntryType> VfsDirectoryServiceWrapper::GetEntryType(
+    const std::string& path) const {
+    auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path));
+    if (dir == nullptr)
+        return ResultCode(-1);
+    auto filename = FileUtil::GetFilename(path);
+    if (dir->GetFile(filename) != nullptr)
+        return MakeResult(FileSys::EntryType::File);
+    if (dir->GetSubdirectory(filename) != nullptr)
+        return MakeResult(FileSys::EntryType::Directory);
+    return ResultCode(-1);
+}
+
+// A deferred filesystem for nand save data.
+// This must be deferred because the directory is dependent on title id, which is not set at
+// registration time.
+struct SaveDataDeferredFilesystem : DeferredFilesystem {
+protected:
+    FileSys::VirtualDir CreateFilesystem() override {
+        u64 title_id = Core::CurrentProcess()->program_id;
+        // TODO(DarkLordZach): Users
+        u32 user_id = 0;
+        std::string nand_directory = fmt::format(
+            "{}save/{:016X}/{:08X}/", FileUtil::GetUserPath(D_NAND_IDX), title_id, user_id);
+
+        auto savedata =
+            std::make_shared<FileSys::RealVfsDirectory>(nand_directory, FileSys::Mode::Write);
+        return savedata;
+    }
+};
+
 /**
  * Map of registered file systems, identified by type. Once an file system is registered here, it
  * is never removed until UnregisterFileSystems is called.
  */
-static boost::container::flat_map<Type, std::unique_ptr<FileSys::FileSystemFactory>> filesystem_map;
+static boost::container::flat_map<Type, std::unique_ptr<DeferredFilesystem>> filesystem_map;
+static FileSys::VirtualFile filesystem_romfs = nullptr;
 
-ResultCode RegisterFileSystem(std::unique_ptr<FileSys::FileSystemFactory>&& factory, Type type) {
+ResultCode RegisterFileSystem(std::unique_ptr<DeferredFilesystem>&& factory, Type type) {
     auto result = filesystem_map.emplace(type, std::move(factory));
 
     bool inserted = result.second;
     ASSERT_MSG(inserted, "Tried to register more than one system with same id code");
 
     auto& filesystem = result.first->second;
-    NGLOG_DEBUG(Service_FS, "Registered file system {} with id code 0x{:08X}",
-                filesystem->GetName(), static_cast<u32>(type));
+    LOG_DEBUG(Service_FS, "Registered file system with id code 0x{:08X}", static_cast<u32>(type));
     return RESULT_SUCCESS;
 }
 
-ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenFileSystem(Type type,
-                                                                      FileSys::Path& path) {
-    NGLOG_TRACE(Service_FS, "Opening FileSystem with type={}", static_cast<u32>(type));
+ResultCode RegisterRomFS(FileSys::VirtualFile filesystem) {
+    ASSERT_MSG(filesystem_romfs == nullptr,
+               "Tried to register more than one system with same id code");
+
+    filesystem_romfs = filesystem;
+    LOG_DEBUG(Service_FS, "Registered file system {} with id code 0x{:08X}", filesystem->GetName(),
+              static_cast<u32>(Type::RomFS));
+    return RESULT_SUCCESS;
+}
+
+ResultVal<FileSys::VirtualDir> OpenFileSystem(Type type) {
+    LOG_TRACE(Service_FS, "Opening FileSystem with type={}", static_cast<u32>(type));
 
     auto itr = filesystem_map.find(type);
     if (itr == filesystem_map.end()) {
@@ -40,11 +225,17 @@ ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenFileSystem(Type type,
         return ResultCode(-1);
     }
 
-    return itr->second->Open(path);
+    return MakeResult(itr->second->Get());
+}
+
+ResultVal<FileSys::VirtualFile> OpenRomFS() {
+    if (filesystem_romfs == nullptr)
+        return ResultCode(-1);
+    return MakeResult(filesystem_romfs);
 }
 
 ResultCode FormatFileSystem(Type type) {
-    NGLOG_TRACE(Service_FS, "Formatting FileSystem with type={}", static_cast<u32>(type));
+    LOG_TRACE(Service_FS, "Formatting FileSystem with type={}", static_cast<u32>(type));
 
     auto itr = filesystem_map.find(type);
     if (itr == filesystem_map.end()) {
@@ -52,21 +243,21 @@ ResultCode FormatFileSystem(Type type) {
         return ResultCode(-1);
     }
 
-    FileSys::Path unused;
-    return itr->second->Format(unused);
+    return itr->second->Get()->GetParentDirectory()->DeleteSubdirectory(
+               itr->second->Get()->GetName())
+               ? RESULT_SUCCESS
+               : ResultCode(-1);
 }
 
 void RegisterFileSystems() {
     filesystem_map.clear();
+    filesystem_romfs = nullptr;
 
-    std::string nand_directory = FileUtil::GetUserPath(D_NAND_IDX);
     std::string sd_directory = FileUtil::GetUserPath(D_SDMC_IDX);
+    auto sdcard = std::make_shared<FileSys::RealVfsDirectory>(sd_directory, FileSys::Mode::Write);
+    RegisterFileSystem(std::make_unique<DeferredFilesystem>(sdcard), Type::SDMC);
 
-    auto savedata = std::make_unique<FileSys::SaveData_Factory>(std::move(nand_directory));
-    RegisterFileSystem(std::move(savedata), Type::SaveData);
-
-    auto sdcard = std::make_unique<FileSys::SDMC_Factory>(std::move(sd_directory));
-    RegisterFileSystem(std::move(sdcard), Type::SDMC);
+    RegisterFileSystem(std::make_unique<SaveDataDeferredFilesystem>(), Type::SaveData);
 }
 
 void InstallInterfaces(SM::ServiceManager& service_manager) {

src/core/hle/service/filesystem/filesystem.h

@@ -6,6 +6,8 @@
 
 #include <memory>
 #include "common/common_types.h"
+#include "core/file_sys/filesystem.h"
+#include "core/file_sys/vfs.h"
 #include "core/hle/result.h"
 
 namespace FileSys {
@@ -29,12 +31,136 @@ enum class Type {
     SDMC = 3,
 };
 
+// A class that wraps a VfsDirectory with methods that return ResultVal and ResultCode instead of
+// pointers and booleans. This makes using a VfsDirectory with switch services much easier and
+// avoids repetitive code.
+class VfsDirectoryServiceWrapper {
+public:
+    explicit VfsDirectoryServiceWrapper(FileSys::VirtualDir backing);
+
+    /**
+     * Get a descriptive name for the archive (e.g. "RomFS", "SaveData", etc.)
+     */
+    std::string GetName() const;
+
+    /**
+     * Create a file specified by its path
+     * @param path Path relative to the Archive
+     * @param size The size of the new file, filled with zeroes
+     * @return Result of the operation
+     */
+    ResultCode CreateFile(const std::string& path, u64 size) const;
+
+    /**
+     * Delete a file specified by its path
+     * @param path Path relative to the archive
+     * @return Result of the operation
+     */
+    ResultCode DeleteFile(const std::string& path) const;
+
+    /**
+     * Create a directory specified by its path
+     * @param path Path relative to the archive
+     * @return Result of the operation
+     */
+    ResultCode CreateDirectory(const std::string& path) const;
+
+    /**
+     * Delete a directory specified by its path
+     * @param path Path relative to the archive
+     * @return Result of the operation
+     */
+    ResultCode DeleteDirectory(const std::string& path) const;
+
+    /**
+     * Delete a directory specified by its path and anything under it
+     * @param path Path relative to the archive
+     * @return Result of the operation
+     */
+    ResultCode DeleteDirectoryRecursively(const std::string& path) const;
+
+    /**
+     * Rename a File specified by its path
+     * @param src_path Source path relative to the archive
+     * @param dest_path Destination path relative to the archive
+     * @return Result of the operation
+     */
+    ResultCode RenameFile(const std::string& src_path, const std::string& dest_path) const;
+
+    /**
+     * Rename a Directory specified by its path
+     * @param src_path Source path relative to the archive
+     * @param dest_path Destination path relative to the archive
+     * @return Result of the operation
+     */
+    ResultCode RenameDirectory(const std::string& src_path, const std::string& dest_path) const;
+
+    /**
+     * Open a file specified by its path, using the specified mode
+     * @param path Path relative to the archive
+     * @param mode Mode to open the file with
+     * @return Opened file, or error code
+     */
+    ResultVal<FileSys::VirtualFile> OpenFile(const std::string& path, FileSys::Mode mode) const;
+
+    /**
+     * Open a directory specified by its path
+     * @param path Path relative to the archive
+     * @return Opened directory, or error code
+     */
+    ResultVal<FileSys::VirtualDir> OpenDirectory(const std::string& path);
+
+    /**
+     * Get the free space
+     * @return The number of free bytes in the archive
+     */
+    u64 GetFreeSpaceSize() const;
+
+    /**
+     * Get the type of the specified path
+     * @return The type of the specified path or error code
+     */
+    ResultVal<FileSys::EntryType> GetEntryType(const std::string& path) const;
+
+private:
+    FileSys::VirtualDir backing;
+};
+
+// A class that deferres the creation of a filesystem until a later time.
+// This is useful if construction depends on a variable not known when the filesystem is registered.
+// Construct this with a filesystem (VirtualDir) to avoid the deferrence feature or override the
+//     CreateFilesystem method which will be called on first use.
+struct DeferredFilesystem {
+    DeferredFilesystem() = default;
+
+    explicit DeferredFilesystem(FileSys::VirtualDir vfs_directory) : fs(std::move(vfs_directory)) {}
+
+    FileSys::VirtualDir Get() {
+        if (fs == nullptr)
+            fs = CreateFilesystem();
+
+        return fs;
+    }
+
+    virtual ~DeferredFilesystem() = default;
+
+protected:
+    virtual FileSys::VirtualDir CreateFilesystem() {
+        return fs;
+    }
+
+private:
+    FileSys::VirtualDir fs;
+};
+
 /**
  * Registers a FileSystem, instances of which can later be opened using its IdCode.
  * @param factory FileSystem backend interface to use
  * @param type Type used to access this type of FileSystem
  */
-ResultCode RegisterFileSystem(std::unique_ptr<FileSys::FileSystemFactory>&& factory, Type type);
+ResultCode RegisterFileSystem(std::unique_ptr<DeferredFilesystem>&& fs, Type type);
+
+ResultCode RegisterRomFS(FileSys::VirtualFile fs);
 
 /**
  * Opens a file system
@@ -42,8 +168,9 @@ ResultCode RegisterFileSystem(std::unique_ptr<FileSys::FileSystemFactory>&& fact
  * @param path Path to the file system, used with Binary paths
  * @return FileSys::FileSystemBackend interface to the file system
  */
-ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenFileSystem(Type type,
-                                                                      FileSys::Path& path);
+ResultVal<FileSys::VirtualDir> OpenFileSystem(Type type);
+
+ResultVal<FileSys::VirtualFile> OpenRomFS();
 
 /**
  * Formats a file system

src/core/hle/service/filesystem/fsp_srv.cpp

@@ -4,6 +4,7 @@
 
 #include <cinttypes>
 #include "common/logging/log.h"
+#include "common/string_util.h"
 #include "core/core.h"
 #include "core/file_sys/directory.h"
 #include "core/file_sys/filesystem.h"
@@ -18,8 +19,8 @@ namespace Service::FileSystem {
 
 class IStorage final : public ServiceFramework<IStorage> {
 public:
-    IStorage(std::unique_ptr<FileSys::StorageBackend>&& backend)
-        : ServiceFramework("IStorage"), backend(std::move(backend)) {
+    IStorage(FileSys::VirtualFile backend_)
+        : ServiceFramework("IStorage"), backend(std::move(backend_)) {
         static const FunctionInfo functions[] = {
             {0, &IStorage::Read, "Read"}, {1, nullptr, "Write"},   {2, nullptr, "Flush"},
             {3, nullptr, "SetSize"},      {4, nullptr, "GetSize"}, {5, nullptr, "OperateRange"},
@@ -28,14 +29,14 @@ public:
     }
 
 private:
-    std::unique_ptr<FileSys::StorageBackend> backend;
+    FileSys::VirtualFile backend;
 
     void Read(Kernel::HLERequestContext& ctx) {
         IPC::RequestParser rp{ctx};
         const s64 offset = rp.Pop<s64>();
         const s64 length = rp.Pop<s64>();
 
-        NGLOG_DEBUG(Service_FS, "called, offset=0x{:X}, length={}", offset, length);
+        LOG_DEBUG(Service_FS, "called, offset=0x{:X}, length={}", offset, length);
 
         // Error checking
         if (length < 0) {
@@ -50,8 +51,8 @@ private:
         }
 
         // Read the data from the Storage backend
-        std::vector<u8> output(length);
-        ResultVal<size_t> res = backend->Read(offset, length, output.data());
+        std::vector<u8> output = backend->ReadBytes(length, offset);
+        auto res = MakeResult<size_t>(output.size());
         if (res.Failed()) {
             IPC::ResponseBuilder rb{ctx, 2};
             rb.Push(res.Code());
@@ -68,8 +69,8 @@ private:
 
 class IFile final : public ServiceFramework<IFile> {
 public:
-    explicit IFile(std::unique_ptr<FileSys::StorageBackend>&& backend)
-        : ServiceFramework("IFile"), backend(std::move(backend)) {
+    explicit IFile(FileSys::VirtualFile backend_)
+        : ServiceFramework("IFile"), backend(std::move(backend_)) {
         static const FunctionInfo functions[] = {
             {0, &IFile::Read, "Read"},       {1, &IFile::Write, "Write"},
             {2, &IFile::Flush, "Flush"},     {3, &IFile::SetSize, "SetSize"},
@@ -79,7 +80,7 @@ public:
     }
 
 private:
-    std::unique_ptr<FileSys::StorageBackend> backend;
+    FileSys::VirtualFile backend;
 
     void Read(Kernel::HLERequestContext& ctx) {
         IPC::RequestParser rp{ctx};
@@ -87,7 +88,7 @@ private:
         const s64 offset = rp.Pop<s64>();
         const s64 length = rp.Pop<s64>();
 
-        NGLOG_DEBUG(Service_FS, "called, offset=0x{:X}, length={}", offset, length);
+        LOG_DEBUG(Service_FS, "called, offset=0x{:X}, length={}", offset, length);
 
         // Error checking
         if (length < 0) {
@@ -102,8 +103,8 @@ private:
         }
 
         // Read the data from the Storage backend
-        std::vector<u8> output(length);
-        ResultVal<size_t> res = backend->Read(offset, length, output.data());
+        std::vector<u8> output = backend->ReadBytes(length, offset);
+        auto res = MakeResult<size_t>(output.size());
         if (res.Failed()) {
             IPC::ResponseBuilder rb{ctx, 2};
             rb.Push(res.Code());
@@ -124,7 +125,7 @@ private:
         const s64 offset = rp.Pop<s64>();
         const s64 length = rp.Pop<s64>();
 
-        NGLOG_DEBUG(Service_FS, "called, offset=0x{:X}, length={}", offset, length);
+        LOG_DEBUG(Service_FS, "called, offset=0x{:X}, length={}", offset, length);
 
         // Error checking
         if (length < 0) {
@@ -138,9 +139,10 @@ private:
             return;
         }
 
-        // Write the data to the Storage backend
         std::vector<u8> data = ctx.ReadBuffer();
-        ResultVal<size_t> res = backend->Write(offset, length, true, data.data());
+        data.resize(length);
+        // Write the data to the Storage backend
+        auto res = MakeResult<size_t>(backend->WriteBytes(data, offset));
         if (res.Failed()) {
             IPC::ResponseBuilder rb{ctx, 2};
             rb.Push(res.Code());
@@ -152,8 +154,9 @@ private:
     }
 
     void Flush(Kernel::HLERequestContext& ctx) {
-        NGLOG_DEBUG(Service_FS, "called");
-        backend->Flush();
+        LOG_DEBUG(Service_FS, "called");
+
+        // Exists for SDK compatibiltity -- No need to flush file.
 
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
@@ -162,8 +165,8 @@ private:
     void SetSize(Kernel::HLERequestContext& ctx) {
         IPC::RequestParser rp{ctx};
         const u64 size = rp.Pop<u64>();
-        backend->SetSize(size);
-        NGLOG_DEBUG(Service_FS, "called, size={}", size);
+        backend->Resize(size);
+        LOG_DEBUG(Service_FS, "called, size={}", size);
 
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
@@ -171,7 +174,7 @@ private:
 
     void GetSize(Kernel::HLERequestContext& ctx) {
         const u64 size = backend->GetSize();
-        NGLOG_DEBUG(Service_FS, "called, size={}", size);
+        LOG_DEBUG(Service_FS, "called, size={}", size);
 
         IPC::ResponseBuilder rb{ctx, 4};
         rb.Push(RESULT_SUCCESS);
@@ -179,49 +182,73 @@ private:
     }
 };
 
+template <typename T>
+static void BuildEntryIndex(std::vector<FileSys::Entry>& entries, const std::vector<T>& new_data,
+                            FileSys::EntryType type) {
+    for (const auto& new_entry : new_data) {
+        FileSys::Entry entry;
+        entry.filename[0] = '\0';
+        std::strncat(entry.filename, new_entry->GetName().c_str(), FileSys::FILENAME_LENGTH - 1);
+        entry.type = type;
+        entry.file_size = new_entry->GetSize();
+        entries.emplace_back(std::move(entry));
+    }
+}
+
 class IDirectory final : public ServiceFramework<IDirectory> {
 public:
-    explicit IDirectory(std::unique_ptr<FileSys::DirectoryBackend>&& backend)
-        : ServiceFramework("IDirectory"), backend(std::move(backend)) {
+    explicit IDirectory(FileSys::VirtualDir backend_)
+        : ServiceFramework("IDirectory"), backend(std::move(backend_)) {
         static const FunctionInfo functions[] = {
             {0, &IDirectory::Read, "Read"},
             {1, &IDirectory::GetEntryCount, "GetEntryCount"},
         };
         RegisterHandlers(functions);
+
+        // Build entry index now to save time later.
+        BuildEntryIndex(entries, backend->GetFiles(), FileSys::File);
+        BuildEntryIndex(entries, backend->GetSubdirectories(), FileSys::Directory);
     }
 
 private:
-    std::unique_ptr<FileSys::DirectoryBackend> backend;
+    FileSys::VirtualDir backend;
+    std::vector<FileSys::Entry> entries;
+    u64 next_entry_index = 0;
 
     void Read(Kernel::HLERequestContext& ctx) {
         IPC::RequestParser rp{ctx};
         const u64 unk = rp.Pop<u64>();
 
-        NGLOG_DEBUG(Service_FS, "called, unk=0x{:X}", unk);
+        LOG_DEBUG(Service_FS, "called, unk=0x{:X}", unk);
 
         // Calculate how many entries we can fit in the output buffer
         u64 count_entries = ctx.GetWriteBufferSize() / sizeof(FileSys::Entry);
 
+        // Cap at total number of entries.
+        u64 actual_entries = std::min(count_entries, entries.size() - next_entry_index);
+
         // Read the data from the Directory backend
-        std::vector<FileSys::Entry> entries(count_entries);
-        u64 read_entries = backend->Read(count_entries, entries.data());
+        std::vector<FileSys::Entry> entry_data(entries.begin() + next_entry_index,
+                                               entries.begin() + next_entry_index + actual_entries);
+
+        next_entry_index += actual_entries;
 
         // Convert the data into a byte array
-        std::vector<u8> output(entries.size() * sizeof(FileSys::Entry));
-        std::memcpy(output.data(), entries.data(), output.size());
+        std::vector<u8> output(entry_data.size() * sizeof(FileSys::Entry));
+        std::memcpy(output.data(), entry_data.data(), output.size());
 
         // Write the data to memory
         ctx.WriteBuffer(output);
 
         IPC::ResponseBuilder rb{ctx, 4};
         rb.Push(RESULT_SUCCESS);
-        rb.Push(read_entries);
+        rb.Push(actual_entries);
     }
 
     void GetEntryCount(Kernel::HLERequestContext& ctx) {
-        NGLOG_DEBUG(Service_FS, "called");
+        LOG_DEBUG(Service_FS, "called");
 
-        u64 count = backend->GetEntryCount();
+        u64 count = entries.size() - next_entry_index;
 
         IPC::ResponseBuilder rb{ctx, 4};
         rb.Push(RESULT_SUCCESS);
@@ -231,7 +258,7 @@ private:
 
 class IFileSystem final : public ServiceFramework<IFileSystem> {
 public:
-    explicit IFileSystem(std::unique_ptr<FileSys::FileSystemBackend>&& backend)
+    explicit IFileSystem(FileSys::VirtualDir backend)
         : ServiceFramework("IFileSystem"), backend(std::move(backend)) {
         static const FunctionInfo functions[] = {
             {0, &IFileSystem::CreateFile, "CreateFile"},
@@ -258,45 +285,39 @@ public:
         IPC::RequestParser rp{ctx};
 
         auto file_buffer = ctx.ReadBuffer();
-        auto end = std::find(file_buffer.begin(), file_buffer.end(), '\0');
-
-        std::string name(file_buffer.begin(), end);
+        std::string name = Common::StringFromBuffer(file_buffer);
 
         u64 mode = rp.Pop<u64>();
         u32 size = rp.Pop<u32>();
 
-        NGLOG_DEBUG(Service_FS, "called file {} mode 0x{:X} size 0x{:08X}", name, mode, size);
+        LOG_DEBUG(Service_FS, "called file {} mode 0x{:X} size 0x{:08X}", name, mode, size);
 
         IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(backend->CreateFile(name, size));
+        rb.Push(backend.CreateFile(name, size));
     }
 
     void DeleteFile(Kernel::HLERequestContext& ctx) {
         IPC::RequestParser rp{ctx};
 
         auto file_buffer = ctx.ReadBuffer();
-        auto end = std::find(file_buffer.begin(), file_buffer.end(), '\0');
+        std::string name = Common::StringFromBuffer(file_buffer);
 
-        std::string name(file_buffer.begin(), end);
-
-        NGLOG_DEBUG(Service_FS, "called file {}", name);
+        LOG_DEBUG(Service_FS, "called file {}", name);
 
         IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(backend->DeleteFile(name));
+        rb.Push(backend.DeleteFile(name));
     }
 
     void CreateDirectory(Kernel::HLERequestContext& ctx) {
         IPC::RequestParser rp{ctx};
 
         auto file_buffer = ctx.ReadBuffer();
-        auto end = std::find(file_buffer.begin(), file_buffer.end(), '\0');
+        std::string name = Common::StringFromBuffer(file_buffer);
 
-        std::string name(file_buffer.begin(), end);
-
-        NGLOG_DEBUG(Service_FS, "called directory {}", name);
+        LOG_DEBUG(Service_FS, "called directory {}", name);
 
         IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(backend->CreateDirectory(name));
+        rb.Push(backend.CreateDirectory(name));
     }
 
     void RenameFile(Kernel::HLERequestContext& ctx) {
@@ -305,40 +326,36 @@ public:
         std::vector<u8> buffer;
         buffer.resize(ctx.BufferDescriptorX()[0].Size());
         Memory::ReadBlock(ctx.BufferDescriptorX()[0].Address(), buffer.data(), buffer.size());
-        auto end = std::find(buffer.begin(), buffer.end(), '\0');
-        std::string src_name(buffer.begin(), end);
+        std::string src_name = Common::StringFromBuffer(buffer);
 
         buffer.resize(ctx.BufferDescriptorX()[1].Size());
         Memory::ReadBlock(ctx.BufferDescriptorX()[1].Address(), buffer.data(), buffer.size());
-        end = std::find(buffer.begin(), buffer.end(), '\0');
-        std::string dst_name(buffer.begin(), end);
+        std::string dst_name = Common::StringFromBuffer(buffer);
 
-        NGLOG_DEBUG(Service_FS, "called file '{}' to file '{}'", src_name, dst_name);
+        LOG_DEBUG(Service_FS, "called file '{}' to file '{}'", src_name, dst_name);
 
         IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(backend->RenameFile(src_name, dst_name));
+        rb.Push(backend.RenameFile(src_name, dst_name));
     }
 
     void OpenFile(Kernel::HLERequestContext& ctx) {
         IPC::RequestParser rp{ctx};
 
         auto file_buffer = ctx.ReadBuffer();
-        auto end = std::find(file_buffer.begin(), file_buffer.end(), '\0');
-
-        std::string name(file_buffer.begin(), end);
+        std::string name = Common::StringFromBuffer(file_buffer);
 
         auto mode = static_cast<FileSys::Mode>(rp.Pop<u32>());
 
-        NGLOG_DEBUG(Service_FS, "called file {} mode {}", name, static_cast<u32>(mode));
+        LOG_DEBUG(Service_FS, "called file {} mode {}", name, static_cast<u32>(mode));
 
-        auto result = backend->OpenFile(name, mode);
+        auto result = backend.OpenFile(name, mode);
         if (result.Failed()) {
             IPC::ResponseBuilder rb{ctx, 2};
             rb.Push(result.Code());
             return;
         }
 
-        auto file = std::move(result.Unwrap());
+        IFile file(result.Unwrap());
 
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
@@ -349,23 +366,21 @@ public:
         IPC::RequestParser rp{ctx};
 
         auto file_buffer = ctx.ReadBuffer();
-        auto end = std::find(file_buffer.begin(), file_buffer.end(), '\0');
-
-        std::string name(file_buffer.begin(), end);
+        std::string name = Common::StringFromBuffer(file_buffer);
 
         // TODO(Subv): Implement this filter.
         u32 filter_flags = rp.Pop<u32>();
 
-        NGLOG_DEBUG(Service_FS, "called directory {} filter {}", name, filter_flags);
+        LOG_DEBUG(Service_FS, "called directory {} filter {}", name, filter_flags);
 
-        auto result = backend->OpenDirectory(name);
+        auto result = backend.OpenDirectory(name);
         if (result.Failed()) {
             IPC::ResponseBuilder rb{ctx, 2};
             rb.Push(result.Code());
             return;
         }
 
-        auto directory = std::move(result.Unwrap());
+        IDirectory directory(result.Unwrap());
 
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
@@ -376,13 +391,11 @@ public:
         IPC::RequestParser rp{ctx};
 
         auto file_buffer = ctx.ReadBuffer();
-        auto end = std::find(file_buffer.begin(), file_buffer.end(), '\0');
+        std::string name = Common::StringFromBuffer(file_buffer);
 
-        std::string name(file_buffer.begin(), end);
+        LOG_DEBUG(Service_FS, "called file {}", name);
 
-        NGLOG_DEBUG(Service_FS, "called file {}", name);
-
-        auto result = backend->GetEntryType(name);
+        auto result = backend.GetEntryType(name);
         if (result.Failed()) {
             IPC::ResponseBuilder rb{ctx, 2};
             rb.Push(result.Code());
@@ -395,14 +408,14 @@ public:
     }
 
     void Commit(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_FS, "(STUBBED) called");
+        LOG_WARNING(Service_FS, "(STUBBED) called");
 
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
     }
 
 private:
-    std::unique_ptr<FileSys::FileSystemBackend> backend;
+    VfsDirectoryServiceWrapper backend;
 };
 
 FSP_SRV::FSP_SRV() : ServiceFramework("fsp-srv") {
@@ -503,25 +516,23 @@ void FSP_SRV::TryLoadRomFS() {
     if (romfs) {
         return;
     }
-    FileSys::Path unused;
-    auto res = OpenFileSystem(Type::RomFS, unused);
+    auto res = OpenRomFS();
     if (res.Succeeded()) {
         romfs = std::move(res.Unwrap());
     }
 }
 
 void FSP_SRV::Initialize(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_FS, "(STUBBED) called");
+    LOG_WARNING(Service_FS, "(STUBBED) called");
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
 
 void FSP_SRV::MountSdCard(Kernel::HLERequestContext& ctx) {
-    NGLOG_DEBUG(Service_FS, "called");
+    LOG_DEBUG(Service_FS, "called");
 
-    FileSys::Path unused;
-    auto filesystem = OpenFileSystem(Type::SDMC, unused).Unwrap();
+    IFileSystem filesystem(OpenFileSystem(Type::SDMC).Unwrap());
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
@@ -535,17 +546,16 @@ void FSP_SRV::CreateSaveData(Kernel::HLERequestContext& ctx) {
     auto save_create_struct = rp.PopRaw<std::array<u8, 0x40>>();
     u128 uid = rp.PopRaw<u128>();
 
-    NGLOG_WARNING(Service_FS, "(STUBBED) called uid = {:016X}{:016X}", uid[1], uid[0]);
+    LOG_WARNING(Service_FS, "(STUBBED) called uid = {:016X}{:016X}", uid[1], uid[0]);
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
 
 void FSP_SRV::MountSaveData(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_FS, "(STUBBED) called");
+    LOG_WARNING(Service_FS, "(STUBBED) called");
 
-    FileSys::Path unused;
-    auto filesystem = OpenFileSystem(Type::SaveData, unused).Unwrap();
+    IFileSystem filesystem(OpenFileSystem(Type::SaveData).Unwrap());
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
@@ -553,7 +563,7 @@ void FSP_SRV::MountSaveData(Kernel::HLERequestContext& ctx) {
 }
 
 void FSP_SRV::GetGlobalAccessLogMode(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_FS, "(STUBBED) called");
+    LOG_WARNING(Service_FS, "(STUBBED) called");
 
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(RESULT_SUCCESS);
@@ -561,33 +571,26 @@ void FSP_SRV::GetGlobalAccessLogMode(Kernel::HLERequestContext& ctx) {
 }
 
 void FSP_SRV::OpenDataStorageByCurrentProcess(Kernel::HLERequestContext& ctx) {
-    NGLOG_DEBUG(Service_FS, "called");
+    LOG_DEBUG(Service_FS, "called");
 
     TryLoadRomFS();
     if (!romfs) {
         // TODO (bunnei): Find the right error code to use here
-        NGLOG_CRITICAL(Service_FS, "no file system interface available!");
+        LOG_CRITICAL(Service_FS, "no file system interface available!");
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(ResultCode(-1));
         return;
     }
 
-    // Attempt to open a StorageBackend interface to the RomFS
-    auto storage = romfs->OpenFile({}, {});
-    if (storage.Failed()) {
-        NGLOG_CRITICAL(Service_FS, "no storage interface available!");
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(storage.Code());
-        return;
-    }
+    IStorage storage(romfs);
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface<IStorage>(std::move(storage.Unwrap()));
+    rb.PushIpcInterface<IStorage>(std::move(storage));
 }
 
 void FSP_SRV::OpenRomStorage(Kernel::HLERequestContext& ctx) {
-    NGLOG_WARNING(Service_FS, "(STUBBED) called, using OpenDataStorageByCurrentProcess");
+    LOG_WARNING(Service_FS, "(STUBBED) called, using OpenDataStorageByCurrentProcess");
     OpenDataStorageByCurrentProcess(ctx);
 }
 

src/core/hle/service/filesystem/fsp_srv.h

@@ -29,7 +29,7 @@ private:
     void OpenDataStorageByCurrentProcess(Kernel::HLERequestContext& ctx);
     void OpenRomStorage(Kernel::HLERequestContext& ctx);
 
-    std::unique_ptr<FileSys::FileSystemBackend> romfs;
+    FileSys::VirtualFile romfs;
 };
 
 } // namespace Service::FileSystem

src/core/hle/service/friend/friend.cpp

@@ -13,7 +13,7 @@ namespace Service::Friend {
 void Module::Interface::CreateFriendService(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
-    NGLOG_WARNING(Service_Friend, "(STUBBED) called");
+    LOG_WARNING(Service_Friend, "(STUBBED) called");
 }
 
 Module::Interface::Interface(std::shared_ptr<Module> module, const char* name)

src/core/hle/service/hid/hid.cpp

@@ -53,7 +53,7 @@ private:
         IPC::ResponseBuilder rb{ctx, 2, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushCopyObjects(shared_mem);
-        NGLOG_DEBUG(Service_HID, "called");
+        LOG_DEBUG(Service_HID, "called");
     }
 
     void LoadInputDevices() {
@@ -84,6 +84,10 @@ private:
 
         for (size_t controller = 0; controller < mem.controllers.size(); controller++) {
             for (int index = 0; index < HID_NUM_LAYOUTS; index++) {
+                // TODO(DarkLordZach): Is this layout/controller config actually invalid?
+                if (controller == Controller_Handheld && index == Layout_Single)
+                    continue;
+
                 ControllerLayout& layout = mem.controllers[controller].layouts[index];
                 layout.header.num_entries = HID_NUM_ENTRIES;
                 layout.header.max_entry_index = HID_NUM_ENTRIES - 1;
@@ -94,7 +98,6 @@ private:
                 layout.header.latest_entry = (layout.header.latest_entry + 1) % HID_NUM_ENTRIES;
 
                 ControllerInputEntry& entry = layout.entries[layout.header.latest_entry];
-                entry.connection_state = ConnectionState_Connected | ConnectionState_Wired;
                 entry.timestamp++;
                 // TODO(shinyquagsire23): Is this always identical to timestamp?
                 entry.timestamp_2++;
@@ -103,6 +106,8 @@ private:
                 if (controller != Controller_Handheld)
                     continue;
 
+                entry.connection_state = ConnectionState_Connected | ConnectionState_Wired;
+
                 // TODO(shinyquagsire23): Set up some LUTs for each layout mapping in the future?
                 // For now everything is just the default handheld layout, but split Joy-Con will
                 // rotate the face buttons and directions for certain layouts.
@@ -262,7 +267,7 @@ private:
     void ActivateVibrationDevice(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 };
 
@@ -329,6 +334,7 @@ public:
             {130, nullptr, "SwapNpadAssignment"},
             {131, nullptr, "IsUnintendedHomeButtonInputProtectionEnabled"},
             {132, nullptr, "EnableUnintendedHomeButtonInputProtection"},
+            {133, nullptr, "SetNpadJoyAssignmentModeSingleWithDestination"},
             {200, &Hid::GetVibrationDeviceInfo, "GetVibrationDeviceInfo"},
             {201, &Hid::SendVibrationValue, "SendVibrationValue"},
             {202, &Hid::GetActualVibrationValue, "GetActualVibrationValue"},
@@ -336,12 +342,41 @@ public:
             {204, nullptr, "PermitVibration"},
             {205, nullptr, "IsVibrationPermitted"},
             {206, &Hid::SendVibrationValues, "SendVibrationValues"},
+            {207, nullptr, "SendVibrationGcErmCommand"},
+            {208, nullptr, "GetActualVibrationGcErmCommand"},
+            {209, nullptr, "BeginPermitVibrationSession"},
+            {210, nullptr, "EndPermitVibrationSession"},
             {300, nullptr, "ActivateConsoleSixAxisSensor"},
             {301, nullptr, "StartConsoleSixAxisSensor"},
             {302, nullptr, "StopConsoleSixAxisSensor"},
+            {303, nullptr, "ActivateSevenSixAxisSensor"},
+            {304, nullptr, "StartSevenSixAxisSensor"},
+            {305, nullptr, "StopSevenSixAxisSensor"},
+            {306, nullptr, "InitializeSevenSixAxisSensor"},
+            {307, nullptr, "FinalizeSevenSixAxisSensor"},
+            {308, nullptr, "SetSevenSixAxisSensorFusionStrength"},
+            {309, nullptr, "GetSevenSixAxisSensorFusionStrength"},
             {400, nullptr, "IsUsbFullKeyControllerEnabled"},
             {401, nullptr, "EnableUsbFullKeyController"},
             {402, nullptr, "IsUsbFullKeyControllerConnected"},
+            {403, nullptr, "HasBattery"},
+            {404, nullptr, "HasLeftRightBattery"},
+            {405, nullptr, "GetNpadInterfaceType"},
+            {406, nullptr, "GetNpadLeftRightInterfaceType"},
+            {500, nullptr, "GetPalmaConnectionHandle"},
+            {501, nullptr, "InitializePalma"},
+            {502, nullptr, "AcquirePalmaOperationCompleteEvent"},
+            {503, nullptr, "GetPalmaOperationInfo"},
+            {504, nullptr, "PlayPalmaActivity"},
+            {505, nullptr, "SetPalmaFrModeType"},
+            {506, nullptr, "ReadPalmaStep"},
+            {507, nullptr, "EnablePalmaStep"},
+            {508, nullptr, "SuspendPalmaStep"},
+            {509, nullptr, "ResetPalmaStep"},
+            {510, nullptr, "ReadPalmaApplicationSection"},
+            {511, nullptr, "WritePalmaApplicationSection"},
+            {512, nullptr, "ReadPalmaUniqueCode"},
+            {513, nullptr, "SetPalmaUniqueCodeInvalid"},
             {1000, nullptr, "SetNpadCommunicationMode"},
             {1001, nullptr, "GetNpadCommunicationMode"},
         };
@@ -364,144 +399,144 @@ private:
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IAppletResource>(applet_resource);
-        NGLOG_DEBUG(Service_HID, "called");
+        LOG_DEBUG(Service_HID, "called");
     }
 
     void ActivateDebugPad(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void ActivateTouchScreen(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void ActivateMouse(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void ActivateKeyboard(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void StartSixAxisSensor(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void SetGyroscopeZeroDriftMode(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void SetSupportedNpadStyleSet(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void GetSupportedNpadStyleSet(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
         rb.Push<u32>(0);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void SetSupportedNpadIdType(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void ActivateNpad(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void AcquireNpadStyleSetUpdateEventHandle(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushCopyObjects(event);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void GetPlayerLedPattern(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void SetNpadJoyHoldType(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void GetNpadJoyHoldType(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
         rb.Push(joy_hold_type);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void SetNpadJoyAssignmentModeSingleByDefault(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void SendVibrationValue(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void GetActualVibrationValue(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void SetNpadJoyAssignmentModeDual(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void SetNpadHandheldActivationMode(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void GetVibrationDeviceInfo(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 4};
         rb.Push(RESULT_SUCCESS);
         rb.Push<u64>(0);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 
     void CreateActiveVibrationDeviceList(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IActiveVibrationDeviceList>();
-        NGLOG_DEBUG(Service_HID, "called");
+        LOG_DEBUG(Service_HID, "called");
     }
 
     void SendVibrationValues(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
-        NGLOG_WARNING(Service_HID, "(STUBBED) called");
+        LOG_WARNING(Service_HID, "(STUBBED) called");
     }
 };
 

src/core/hle/service/hid/hid.h

@@ -12,7 +12,7 @@ namespace Service::HID {
 // Begin enums and output structs
 
 constexpr u32 HID_NUM_ENTRIES = 17;
-constexpr u32 HID_NUM_LAYOUTS = 2;
+constexpr u32 HID_NUM_LAYOUTS = 7;
 constexpr s32 HID_JOYSTICK_MAX = 0x8000;
 constexpr s32 HID_JOYSTICK_MIN = -0x8000;
 

src/core/hle/service/lm/lm.cpp

@@ -141,19 +141,19 @@ private:
         if (header.IsTailLog()) {
             switch (header.severity) {
             case MessageHeader::Severity::Trace:
-                NGLOG_TRACE(Debug_Emulated, "{}", log_stream.str());
+                LOG_TRACE(Debug_Emulated, "{}", log_stream.str());
                 break;
             case MessageHeader::Severity::Info:
-                NGLOG_INFO(Debug_Emulated, "{}", log_stream.str());
+                LOG_INFO(Debug_Emulated, "{}", log_stream.str());
                 break;
             case MessageHeader::Severity::Warning:
-                NGLOG_WARNING(Debug_Emulated, "{}", log_stream.str());
+                LOG_WARNING(Debug_Emulated, "{}", log_stream.str());
                 break;
             case MessageHeader::Severity::Error:
-                NGLOG_ERROR(Debug_Emulated, "{}", log_stream.str());
+                LOG_ERROR(Debug_Emulated, "{}", log_stream.str());
                 break;
             case MessageHeader::Severity::Critical:
-                NGLOG_CRITICAL(Debug_Emulated, "{}", log_stream.str());
+                LOG_CRITICAL(Debug_Emulated, "{}", log_stream.str());
                 break;
             }
         }
@@ -178,7 +178,7 @@ void LM::Initialize(Kernel::HLERequestContext& ctx) {
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<Logger>();
 
-    NGLOG_DEBUG(Service_LM, "called");
+    LOG_DEBUG(Service_LM, "called");
 }
 
 LM::LM() : ServiceFramework("lm") {

src/core/hle/service/mm/mm_u.cpp

@@ -0,0 +1,50 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/logging/log.h"
+#include "core/hle/ipc_helpers.h"
+#include "core/hle/kernel/client_session.h"
+#include "core/hle/service/mm/mm_u.h"
+
+namespace Service::MM {
+
+void InstallInterfaces(SM::ServiceManager& service_manager) {
+    std::make_shared<MM_U>()->InstallAsService(service_manager);
+}
+
+void MM_U::Initialize(Kernel::HLERequestContext& ctx) {
+    LOG_WARNING(Service_MM, "(STUBBED) called");
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+}
+
+void MM_U::SetAndWait(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    min = rp.Pop<u32>();
+    max = rp.Pop<u32>();
+    current = min;
+
+    LOG_WARNING(Service_MM, "(STUBBED) called, min=0x{:X}, max=0x{:X}", min, max);
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+}
+
+void MM_U::Get(Kernel::HLERequestContext& ctx) {
+    LOG_WARNING(Service_MM, "(STUBBED) called");
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(RESULT_SUCCESS);
+    rb.Push(current);
+}
+
+MM_U::MM_U() : ServiceFramework("mm:u") {
+    static const FunctionInfo functions[] = {
+        {0, nullptr, "InitializeOld"},        {1, nullptr, "FinalizeOld"},
+        {2, nullptr, "SetAndWaitOld"},        {3, nullptr, "GetOld"},
+        {4, &MM_U::Initialize, "Initialize"}, {5, nullptr, "Finalize"},
+        {6, &MM_U::SetAndWait, "SetAndWait"}, {7, &MM_U::Get, "Get"},
+    };
+    RegisterHandlers(functions);
+}
+
+} // namespace Service::MM

src/core/hle/service/mm/mm_u.h

@@ -0,0 +1,29 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+namespace Service::MM {
+
+class MM_U final : public ServiceFramework<MM_U> {
+public:
+    MM_U();
+    ~MM_U() = default;
+
+private:
+    void Initialize(Kernel::HLERequestContext& ctx);
+    void SetAndWait(Kernel::HLERequestContext& ctx);
+    void Get(Kernel::HLERequestContext& ctx);
+
+    u32 min{0};
+    u32 max{0};
+    u32 current{0};
+};
+
+/// Registers all MM services with the specified service manager.
+void InstallInterfaces(SM::ServiceManager& service_manager);
+
+} // namespace Service::MM

src/core/hle/service/nfp/nfp.cpp

@@ -4,6 +4,8 @@
 
 #include "common/logging/log.h"
 #include "core/hle/ipc_helpers.h"
+#include "core/hle/kernel/event.h"
+#include "core/hle/service/hid/hid.h"
 #include "core/hle/service/nfp/nfp.h"
 #include "core/hle/service/nfp/nfp_user.h"
 
@@ -18,7 +20,7 @@ public:
         static const FunctionInfo functions[] = {
             {0, &IUser::Initialize, "Initialize"},
             {1, nullptr, "Finalize"},
-            {2, nullptr, "ListDevices"},
+            {2, &IUser::ListDevices, "ListDevices"},
             {3, nullptr, "StartDetection"},
             {4, nullptr, "StopDetection"},
             {5, nullptr, "Mount"},
@@ -33,28 +35,120 @@ public:
             {14, nullptr, "GetRegisterInfo"},
             {15, nullptr, "GetCommonInfo"},
             {16, nullptr, "GetModelInfo"},
-            {17, nullptr, "AttachActivateEvent"},
-            {18, nullptr, "AttachDeactivateEvent"},
-            {19, nullptr, "GetState"},
-            {20, nullptr, "GetDeviceState"},
-            {21, nullptr, "GetNpadId"},
+            {17, &IUser::AttachActivateEvent, "AttachActivateEvent"},
+            {18, &IUser::AttachDeactivateEvent, "AttachDeactivateEvent"},
+            {19, &IUser::GetState, "GetState"},
+            {20, &IUser::GetDeviceState, "GetDeviceState"},
+            {21, &IUser::GetNpadId, "GetNpadId"},
             {22, nullptr, "GetApplicationArea2"},
-            {23, nullptr, "AttachAvailabilityChangeEvent"},
+            {23, &IUser::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
             {24, nullptr, "RecreateApplicationArea"},
         };
         RegisterHandlers(functions);
+
+        activate_event = Kernel::Event::Create(Kernel::ResetType::OneShot, "IUser:ActivateEvent");
+        deactivate_event =
+            Kernel::Event::Create(Kernel::ResetType::OneShot, "IUser:DeactivateEvent");
+        availability_change_event =
+            Kernel::Event::Create(Kernel::ResetType::OneShot, "IUser:AvailabilityChangeEvent");
     }
 
 private:
+    enum class State : u32 {
+        NonInitialized = 0,
+        Initialized = 1,
+    };
+
+    enum class DeviceState : u32 {
+        Initialized = 0,
+    };
+
     void Initialize(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_NFP, "(STUBBED) called");
+        LOG_WARNING(Service_NFP, "(STUBBED) called");
+
+        state = State::Initialized;
+
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
     }
+
+    void ListDevices(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const u32 array_size = rp.Pop<u32>();
+
+        ctx.WriteBuffer(&device_handle, sizeof(device_handle));
+
+        LOG_WARNING(Service_NFP, "(STUBBED) called, array_size={}", array_size);
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u32>(0);
+    }
+
+    void AttachActivateEvent(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const u64 dev_handle = rp.Pop<u64>();
+        LOG_WARNING(Service_NFP, "(STUBBED) called, dev_handle=0x{:X}", dev_handle);
+
+        IPC::ResponseBuilder rb{ctx, 2, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushCopyObjects(activate_event);
+    }
+
+    void AttachDeactivateEvent(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const u64 dev_handle = rp.Pop<u64>();
+        LOG_WARNING(Service_NFP, "(STUBBED) called, dev_handle=0x{:X}", dev_handle);
+
+        IPC::ResponseBuilder rb{ctx, 2, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushCopyObjects(deactivate_event);
+    }
+
+    void GetState(Kernel::HLERequestContext& ctx) {
+        LOG_WARNING(Service_NFP, "(STUBBED) called");
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u32>(static_cast<u32>(state));
+    }
+
+    void GetDeviceState(Kernel::HLERequestContext& ctx) {
+        LOG_WARNING(Service_NFP, "(STUBBED) called");
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u32>(static_cast<u32>(device_state));
+    }
+
+    void GetNpadId(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const u64 dev_handle = rp.Pop<u64>();
+        LOG_WARNING(Service_NFP, "(STUBBED) called, dev_handle=0x{:X}", dev_handle);
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u32>(npad_id);
+    }
+
+    void AttachAvailabilityChangeEvent(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const u64 dev_handle = rp.Pop<u64>();
+        LOG_WARNING(Service_NFP, "(STUBBED) called, dev_handle=0x{:X}", dev_handle);
+
+        IPC::ResponseBuilder rb{ctx, 2, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushCopyObjects(availability_change_event);
+    }
+
+    const u64 device_handle{0xDEAD};
+    const HID::ControllerID npad_id{HID::Controller_Player1};
+    State state{State::NonInitialized};
+    DeviceState device_state{DeviceState::Initialized};
+    Kernel::SharedPtr<Kernel::Event> activate_event;
+    Kernel::SharedPtr<Kernel::Event> deactivate_event;
+    Kernel::SharedPtr<Kernel::Event> availability_change_event;
 };
 
 void Module::Interface::CreateUserInterface(Kernel::HLERequestContext& ctx) {
-    NGLOG_DEBUG(Service_NFP, "called");
+    LOG_DEBUG(Service_NFP, "called");
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<IUser>();

src/core/hle/service/nifm/nifm.cpp

@@ -38,7 +38,7 @@ public:
             {8, nullptr, "SetPriority"},
             {9, nullptr, "SetNetworkProfileId"},
             {10, nullptr, "SetRejectable"},
-            {11, nullptr, "SetConnectionConfirmationOption"},
+            {11, &IRequest::SetConnectionConfirmationOption, "SetConnectionConfirmationOption"},
             {12, nullptr, "SetPersistent"},
             {13, nullptr, "SetInstant"},
             {14, nullptr, "SetSustainable"},
@@ -62,24 +62,33 @@ public:
 
 private:
     void GetRequestState(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_NIFM, "(STUBBED) called");
+        LOG_WARNING(Service_NIFM, "(STUBBED) called");
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
         rb.Push<u32>(0);
     }
+
     void GetResult(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_NIFM, "(STUBBED) called");
+        LOG_WARNING(Service_NIFM, "(STUBBED) called");
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
     }
+
     void GetSystemEventReadableHandles(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_NIFM, "(STUBBED) called");
+        LOG_WARNING(Service_NIFM, "(STUBBED) called");
         IPC::ResponseBuilder rb{ctx, 2, 2};
         rb.Push(RESULT_SUCCESS);
         rb.PushCopyObjects(event1, event2);
     }
+
     void Cancel(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_NIFM, "(STUBBED) called");
+        LOG_WARNING(Service_NIFM, "(STUBBED) called");
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void SetConnectionConfirmationOption(Kernel::HLERequestContext& ctx) {
+        LOG_WARNING(Service_NIFM, "(STUBBED) called");
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
     }
@@ -105,7 +114,7 @@ public:
 
 private:
     void GetClientId(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_NIFM, "(STUBBED) called");
+        LOG_WARNING(Service_NIFM, "(STUBBED) called");
         IPC::ResponseBuilder rb{ctx, 4};
         rb.Push(RESULT_SUCCESS);
         rb.Push<u64>(0);
@@ -116,7 +125,7 @@ private:
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IScanRequest>();
 
-        NGLOG_DEBUG(Service_NIFM, "called");
+        LOG_DEBUG(Service_NIFM, "called");
     }
     void CreateRequest(Kernel::HLERequestContext& ctx) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
@@ -124,10 +133,10 @@ private:
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IRequest>();
 
-        NGLOG_DEBUG(Service_NIFM, "called");
+        LOG_DEBUG(Service_NIFM, "called");
     }
     void RemoveNetworkProfile(Kernel::HLERequestContext& ctx) {
-        NGLOG_WARNING(Service_NIFM, "(STUBBED) called");
+        LOG_WARNING(Service_NIFM, "(STUBBED) called");
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
     }
@@ -137,7 +146,7 @@ private:
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<INetworkProfile>();
 
-        NGLOG_DEBUG(Service_NIFM, "called");
+        LOG_DEBUG(Service_NIFM, "called");
     }
 };
 
@@ -187,14 +196,14 @@ void Module::Interface::CreateGeneralServiceOld(Kernel::HLERequestContext& ctx)
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<IGeneralService>();
-    NGLOG_DEBUG(Service_NIFM, "called");
+    LOG_DEBUG(Service_NIFM, "called");
 }
 
 void Module::Interface::CreateGeneralService(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<IGeneralService>();
-    NGLOG_DEBUG(Service_NIFM, "called");
+    LOG_DEBUG(Service_NIFM, "called");
 }
 
 Module::Interface::Interface(std::shared_ptr<Module> module, const char* name)

src/core/hle/service/ns/pl_u.cpp

@@ -52,7 +52,7 @@ PL_U::PL_U() : ServiceFramework("pl:u") {
         ASSERT(file.GetSize() == SHARED_FONT_MEM_SIZE);
         file.ReadBytes(shared_font->data(), shared_font->size());
     } else {
-        NGLOG_WARNING(Service_NS, "Unable to load shared font: {}", filepath);
+        LOG_WARNING(Service_NS, "Unable to load shared font: {}", filepath);
     }
 }
 
@@ -60,7 +60,7 @@ void PL_U::RequestLoad(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const u32 shared_font_type{rp.Pop<u32>()};
 
-    NGLOG_DEBUG(Service_NS, "called, shared_font_type={}", shared_font_type);
+    LOG_DEBUG(Service_NS, "called, shared_font_type={}", shared_font_type);
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
@@ -69,7 +69,7 @@ void PL_U::GetLoadState(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const u32 font_id{rp.Pop<u32>()};
 
-    NGLOG_DEBUG(Service_NS, "called, font_id={}", font_id);
+    LOG_DEBUG(Service_NS, "called, font_id={}", font_id);
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(RESULT_SUCCESS);
     rb.Push<u32>(static_cast<u32>(LoadState::Done));
@@ -79,7 +79,7 @@ void PL_U::GetSize(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const u32 font_id{rp.Pop<u32>()};
 
-    NGLOG_DEBUG(Service_NS, "called, font_id={}", font_id);
+    LOG_DEBUG(Service_NS, "called, font_id={}", font_id);
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(RESULT_SUCCESS);
     rb.Push<u32>(SHARED_FONT_REGIONS[font_id].size);
@@ -89,7 +89,7 @@ void PL_U::GetSharedMemoryAddressOffset(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const u32 font_id{rp.Pop<u32>()};
 
-    NGLOG_DEBUG(Service_NS, "called, font_id={}", font_id);
+    LOG_DEBUG(Service_NS, "called, font_id={}", font_id);
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(RESULT_SUCCESS);
     rb.Push<u32>(SHARED_FONT_REGIONS[font_id].offset);
@@ -110,7 +110,7 @@ void PL_U::GetSharedMemoryNativeHandle(Kernel::HLERequestContext& ctx) {
         Kernel::MemoryPermission::Read, SHARED_FONT_MEM_VADDR, Kernel::MemoryRegion::BASE,
         "PL_U:shared_font_mem");
 
-    NGLOG_DEBUG(Service_NS, "called");
+    LOG_DEBUG(Service_NS, "called");
     IPC::ResponseBuilder rb{ctx, 2, 1};
     rb.Push(RESULT_SUCCESS);
     rb.PushCopyObjects(shared_font_mem);
@@ -119,7 +119,7 @@ void PL_U::GetSharedMemoryNativeHandle(Kernel::HLERequestContext& ctx) {
 void PL_U::GetSharedFontInOrderOfPriority(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const u64 language_code{rp.Pop<u64>()}; // TODO(ogniK): Find out what this is used for
-    NGLOG_DEBUG(Service_NS, "called, language_code=%lx", language_code);
+    LOG_DEBUG(Service_NS, "called, language_code=%lx", language_code);
     IPC::ResponseBuilder rb{ctx, 4};
     std::vector<u32> font_codes;
     std::vector<u32> font_offsets;