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Merge pull request #1499 from lioncash/nro

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nro/nso: Minor error handling changes
This commit is contained in:
bunnei 2018-10-15 17:48:36 -04:00 committed by GitHub
commit 50e6205c21
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GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 39 additions and 28 deletions
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16
src/core/loader/deconstructed_rom_directory.cpp
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@ -139,15 +139,23 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(Kernel::Process& process)
for (const auto& module : {"rtld", "main", "subsdk0", "subsdk1", "subsdk2", "subsdk3",
"subsdk4", "subsdk5", "subsdk6", "subsdk7", "sdk"}) {
const FileSys::VirtualFile module_file = dir->GetFile(module);
if (module_file != nullptr) {
if (module_file == nullptr) {
continue;
}
const VAddr load_addr = next_load_addr;
next_load_addr = AppLoader_NSO::LoadModule(module_file, load_addr,
std::strcmp(module, "rtld") == 0, pm);
const bool should_pass_arguments = std::strcmp(module, "rtld") == 0;
const auto tentative_next_load_addr =
AppLoader_NSO::LoadModule(*module_file, load_addr, should_pass_arguments, pm);
if (!tentative_next_load_addr) {
return ResultStatus::ErrorLoadingNSO;
}
next_load_addr = *tentative_next_load_addr;
LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", module, load_addr);
// Register module with GDBStub
GDBStub::RegisterModule(module, load_addr, next_load_addr - 1, false);
}
}
process.Run(base_address, metadata.GetMainThreadPriority(), metadata.GetMainThreadStackSize());

3
src/core/loader/loader.cpp
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@ -93,7 +93,7 @@ std::string GetFileTypeString(FileType type) {
return "unknown";
}
constexpr std::array<const char*, 59> RESULT_MESSAGES{
constexpr std::array<const char*, 60> RESULT_MESSAGES{
"The operation completed successfully.",
"The loader requested to load is already loaded.",
"The operation is not implemented.",
@ -128,6 +128,7 @@ constexpr std::array<const char*, 59> RESULT_MESSAGES{
"The RomFS could not be found.",
"The ELF file has incorrect size as determined by the header.",
"There was a general error loading the NRO into emulated memory.",
"There was a general error loading the NSO into emulated memory.",
"There is no icon available.",
"There is no control data available.",
"The NAX file has a bad header.",

1
src/core/loader/loader.h
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@ -90,6 +90,7 @@ enum class ResultStatus : u16 {
ErrorNoRomFS,
ErrorIncorrectELFFileSize,
ErrorLoadingNRO,
ErrorLoadingNSO,
ErrorNoIcon,
ErrorNoControl,
ErrorBadNAXHeader,

10
src/core/loader/nro.cpp
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@ -127,10 +127,10 @@ static constexpr u32 PageAlignSize(u32 size) {
return (size + Memory::PAGE_MASK) & ~Memory::PAGE_MASK;
}
bool AppLoader_NRO::LoadNro(FileSys::VirtualFile file, VAddr load_base) {
bool AppLoader_NRO::LoadNro(const FileSys::VfsFile& file, VAddr load_base) {
// Read NSO header
NroHeader nro_header{};
if (sizeof(NroHeader) != file->ReadObject(&nro_header)) {
if (sizeof(NroHeader) != file.ReadObject(&nro_header)) {
return {};
}
if (nro_header.magic != Common::MakeMagic('N', 'R', 'O', '0')) {
@ -138,7 +138,7 @@ bool AppLoader_NRO::LoadNro(FileSys::VirtualFile file, VAddr load_base) {
}
// Build program image
std::vector<u8> program_image = file->ReadBytes(PageAlignSize(nro_header.file_size));
std::vector<u8> program_image = file.ReadBytes(PageAlignSize(nro_header.file_size));
if (program_image.size() != PageAlignSize(nro_header.file_size)) {
return {};
}
@ -182,7 +182,7 @@ bool AppLoader_NRO::LoadNro(FileSys::VirtualFile file, VAddr load_base) {
Core::CurrentProcess()->LoadModule(std::move(codeset), load_base);
// Register module with GDBStub
GDBStub::RegisterModule(file->GetName(), load_base, load_base);
GDBStub::RegisterModule(file.GetName(), load_base, load_base);
return true;
}
@ -195,7 +195,7 @@ ResultStatus AppLoader_NRO::Load(Kernel::Process& process) {
// Load NRO
const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
if (!LoadNro(file, base_address)) {
if (!LoadNro(*file, base_address)) {
return ResultStatus::ErrorLoadingNRO;
}

2
src/core/loader/nro.h
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@ -41,7 +41,7 @@ public:
bool IsRomFSUpdatable() const override;
private:
bool LoadNro(FileSys::VirtualFile file, VAddr load_base);
bool LoadNro(const FileSys::VfsFile& file, VAddr load_base);
std::vector<u8> icon_data;
std::unique_ptr<FileSys::NACP> nacp;

21
src/core/loader/nso.cpp
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@ -93,17 +93,14 @@ static constexpr u32 PageAlignSize(u32 size) {
return (size + Memory::PAGE_MASK) & ~Memory::PAGE_MASK;
}
VAddr AppLoader_NSO::LoadModule(FileSys::VirtualFile file, VAddr load_base,
std::optional<VAddr> AppLoader_NSO::LoadModule(const FileSys::VfsFile& file, VAddr load_base,
bool should_pass_arguments,
boost::optional<FileSys::PatchManager> pm) {
if (file == nullptr)
return {};
if (file->GetSize() < sizeof(NsoHeader))
std::optional<FileSys::PatchManager> pm) {
if (file.GetSize() < sizeof(NsoHeader))
return {};
NsoHeader nso_header{};
if (sizeof(NsoHeader) != file->ReadObject(&nso_header))
if (sizeof(NsoHeader) != file.ReadObject(&nso_header))
return {};
if (nso_header.magic != Common::MakeMagic('N', 'S', 'O', '0'))
@ -114,7 +111,7 @@ VAddr AppLoader_NSO::LoadModule(FileSys::VirtualFile file, VAddr load_base,
std::vector<u8> program_image;
for (std::size_t i = 0; i < nso_header.segments.size(); ++i) {
std::vector<u8> data =
file->ReadBytes(nso_header.segments_compressed_size[i], nso_header.segments[i].offset);
file.ReadBytes(nso_header.segments_compressed_size[i], nso_header.segments[i].offset);
if (nso_header.IsSegmentCompressed(i)) {
data = DecompressSegment(data, nso_header.segments[i]);
}
@ -157,7 +154,7 @@ VAddr AppLoader_NSO::LoadModule(FileSys::VirtualFile file, VAddr load_base,
program_image.resize(image_size);
// Apply patches if necessary
if (pm != boost::none && pm->HasNSOPatch(nso_header.build_id)) {
if (pm && pm->HasNSOPatch(nso_header.build_id)) {
std::vector<u8> pi_header(program_image.size() + 0x100);
std::memcpy(pi_header.data(), &nso_header, sizeof(NsoHeader));
std::memcpy(pi_header.data() + 0x100, program_image.data(), program_image.size());
@ -172,7 +169,7 @@ VAddr AppLoader_NSO::LoadModule(FileSys::VirtualFile file, VAddr load_base,
Core::CurrentProcess()->LoadModule(std::move(codeset), load_base);
// Register module with GDBStub
GDBStub::RegisterModule(file->GetName(), load_base, load_base);
GDBStub::RegisterModule(file.GetName(), load_base, load_base);
return load_base + image_size;
}
@ -184,7 +181,9 @@ ResultStatus AppLoader_NSO::Load(Kernel::Process& process) {
// Load module
const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
LoadModule(file, base_address, true);
if (!LoadModule(*file, base_address, true)) {
return ResultStatus::ErrorLoadingNSO;
}
LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", file->GetName(), base_address);
process.Run(base_address, Kernel::THREADPRIO_DEFAULT, Memory::DEFAULT_STACK_SIZE);

6
src/core/loader/nso.h
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@ -4,6 +4,7 @@
#pragma once
#include <optional>
#include "common/common_types.h"
#include "core/file_sys/patch_manager.h"
#include "core/loader/linker.h"
@ -36,8 +37,9 @@ public:
return IdentifyType(file);
}
static VAddr LoadModule(FileSys::VirtualFile file, VAddr load_base, bool should_pass_arguments,
boost::optional<FileSys::PatchManager> pm = boost::none);
static std::optional<VAddr> LoadModule(const FileSys::VfsFile& file, VAddr load_base,
bool should_pass_arguments,
std::optional<FileSys::PatchManager> pm = {});
ResultStatus Load(Kernel::Process& process) override;
};