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Merge pull request #3745 from bunnei/fix-homebrew-load

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Fix process memory initialization for ELF and NRO
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bunnei 2020-04-21 18:59:16 -04:00 committed by GitHub
commit cd47ccec49
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 35 additions and 12 deletions
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11
src/core/file_sys/program_metadata.cpp
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@ -51,6 +51,17 @@ Loader::ResultStatus ProgramMetadata::Load(VirtualFile file) {
return Loader::ResultStatus::Success;
}
/*static*/ ProgramMetadata ProgramMetadata::GetDefault() {
ProgramMetadata result;
result.LoadManual(
true /*is_64_bit*/, FileSys::ProgramAddressSpaceType::Is39Bit /*address_space*/,
0x2c /*main_thread_prio*/, 0 /*main_thread_core*/, 0x00100000 /*main_thread_stack_size*/,
{}, 0xFFFFFFFFFFFFFFFF /*filesystem_permissions*/, {} /*capabilities*/);
return result;
}
void ProgramMetadata::LoadManual(bool is_64_bit, ProgramAddressSpaceType address_space,
s32 main_thread_prio, u32 main_thread_core,
u32 main_thread_stack_size, u64 title_id,

6
src/core/file_sys/program_metadata.h
View file

@ -44,9 +44,13 @@ public:
ProgramMetadata();
~ProgramMetadata();
/// Gets a default ProgramMetadata configuration, should only be used for homebrew formats where
/// we do not have an NPDM file
static ProgramMetadata GetDefault();
Loader::ResultStatus Load(VirtualFile file);
// Load from parameters instead of NPDM file, used for KIP
/// Load from parameters instead of NPDM file, used for KIP
void LoadManual(bool is_64_bit, ProgramAddressSpaceType address_space, s32 main_thread_prio,
u32 main_thread_core, u32 main_thread_stack_size, u64 title_id,
u64 filesystem_permissions, KernelCapabilityDescriptors capabilities);

5
src/core/loader/elf.cpp
View file

@ -398,6 +398,11 @@ AppLoader_ELF::LoadResult AppLoader_ELF::Load(Kernel::Process& process) {
Kernel::CodeSet codeset = elf_reader.LoadInto(base_address);
const VAddr entry_point = codeset.entrypoint;
// Setup the process code layout
if (process.LoadFromMetadata(FileSys::ProgramMetadata::GetDefault(), buffer.size()).IsError()) {
return {ResultStatus::ErrorNotInitialized, {}};
}
process.LoadModule(std::move(codeset), entry_point);
is_loaded = true;

23
src/core/loader/nro.cpp
View file

@ -131,7 +131,7 @@ static constexpr u32 PageAlignSize(u32 size) {
}
static bool LoadNroImpl(Kernel::Process& process, const std::vector<u8>& data,
const std::string& name, VAddr load_base) {
const std::string& name) {
if (data.size() < sizeof(NroHeader)) {
return {};
}
@ -187,19 +187,25 @@ static bool LoadNroImpl(Kernel::Process& process, const std::vector<u8>& data,
codeset.DataSegment().size += bss_size;
program_image.resize(static_cast<u32>(program_image.size()) + bss_size);
// Setup the process code layout
if (process.LoadFromMetadata(FileSys::ProgramMetadata::GetDefault(), program_image.size())
.IsError()) {
return false;
}
// Load codeset for current process
codeset.memory = std::move(program_image);
process.LoadModule(std::move(codeset), load_base);
process.LoadModule(std::move(codeset), process.PageTable().GetCodeRegionStart());
// Register module with GDBStub
GDBStub::RegisterModule(name, load_base, load_base);
GDBStub::RegisterModule(name, process.PageTable().GetCodeRegionStart(),
process.PageTable().GetCodeRegionEnd());
return true;
}
bool AppLoader_NRO::LoadNro(Kernel::Process& process, const FileSys::VfsFile& file,
VAddr load_base) {
return LoadNroImpl(process, file.ReadAllBytes(), file.GetName(), load_base);
bool AppLoader_NRO::LoadNro(Kernel::Process& process, const FileSys::VfsFile& file) {
return LoadNroImpl(process, file.ReadAllBytes(), file.GetName());
}
AppLoader_NRO::LoadResult AppLoader_NRO::Load(Kernel::Process& process) {
@ -207,10 +213,7 @@ AppLoader_NRO::LoadResult AppLoader_NRO::Load(Kernel::Process& process) {
return {ResultStatus::ErrorAlreadyLoaded, {}};
}
// Load NRO
const VAddr base_address = process.PageTable().GetCodeRegionStart();
if (!LoadNro(process, *file, base_address)) {
if (!LoadNro(process, *file)) {
return {ResultStatus::ErrorLoadingNRO, {}};
}

2
src/core/loader/nro.h
View file

@ -47,7 +47,7 @@ public:
bool IsRomFSUpdatable() const override;
private:
bool LoadNro(Kernel::Process& process, const FileSys::VfsFile& file, VAddr load_base);
bool LoadNro(Kernel::Process& process, const FileSys::VfsFile& file);
std::vector<u8> icon_data;
std::unique_ptr<FileSys::NACP> nacp;