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// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <cstring>
#include "core/file_sys/kernel_executable.h"
#include "core/file_sys/program_metadata.h"
#include "core/hle/kernel/code_set.h"
#include "core/hle/kernel/k_page_table.h"
#include "core/hle/kernel/k_process.h"
#include "core/loader/kip.h"
#include "core/memory.h"
namespace Loader {
namespace {
constexpr u32 PageAlignSize(u32 size) {
return static_cast<u32>((size + Core::Memory::YUZU_PAGEMASK) & ~Core::Memory::YUZU_PAGEMASK);
}
} // Anonymous namespace
AppLoader_KIP::AppLoader_KIP(FileSys::VirtualFile file_)
: AppLoader(std::move(file_)), kip(std::make_unique<FileSys::KIP>(file)) {}
AppLoader_KIP::~AppLoader_KIP() = default;
FileType AppLoader_KIP::IdentifyType(const FileSys::VirtualFile& in_file) {
u32_le magic{};
if (in_file->GetSize() < sizeof(u32) || in_file->ReadObject(&magic) != sizeof(u32)) {
return FileType::Error;
}
if (magic == Common::MakeMagic('K', 'I', 'P', '1')) {
return FileType::KIP;
}
return FileType::Error;
}
FileType AppLoader_KIP::GetFileType() const {
return (kip != nullptr && kip->GetStatus() == ResultStatus::Success) ? FileType::KIP
: FileType::Error;
}
AppLoader::LoadResult AppLoader_KIP::Load(Kernel::KProcess& process,
[[maybe_unused]] Core::System& system) {
if (is_loaded) {
return {ResultStatus::ErrorAlreadyLoaded, {}};
}
if (kip == nullptr) {
return {ResultStatus::ErrorNullFile, {}};
}
if (kip->GetStatus() != ResultStatus::Success) {
return {kip->GetStatus(), {}};
}
const auto get_kip_address_space_type = [](const auto& kip_type) {
return kip_type.Is64Bit()
? (kip_type.Is39BitAddressSpace() ? FileSys::ProgramAddressSpaceType::Is39Bit
: FileSys::ProgramAddressSpaceType::Is36Bit)
: FileSys::ProgramAddressSpaceType::Is32Bit;
};
const auto address_space = get_kip_address_space_type(*kip);
FileSys::ProgramMetadata metadata;
metadata.LoadManual(kip->Is64Bit(), address_space, kip->GetMainThreadPriority(),
kip->GetMainThreadCpuCore(), kip->GetMainThreadStackSize(),
kip->GetTitleID(), 0xFFFFFFFFFFFFFFFF, 0x1FE00000,
kip->GetKernelCapabilities());
Kernel::CodeSet codeset;
Kernel::PhysicalMemory program_image;
const auto load_segment = [&program_image](Kernel::CodeSet::Segment& segment,
const std::vector<u8>& data, u32 offset) {
segment.addr = offset;
segment.offset = offset;
segment.size = PageAlignSize(static_cast<u32>(data.size()));
program_image.resize(offset + data.size());
std::memcpy(program_image.data() + offset, data.data(), data.size());
};
load_segment(codeset.CodeSegment(), kip->GetTextSection(), kip->GetTextOffset());
load_segment(codeset.RODataSegment(), kip->GetRODataSection(), kip->GetRODataOffset());
load_segment(codeset.DataSegment(), kip->GetDataSection(), kip->GetDataOffset());
program_image.resize(PageAlignSize(kip->GetBSSOffset()) + kip->GetBSSSize());
codeset.DataSegment().size += kip->GetBSSSize();
// Setup the process code layout
if (process
.LoadFromMetadata(FileSys::ProgramMetadata::GetDefault(), program_image.size(), 0,
false)
.IsError()) {
return {ResultStatus::ErrorNotInitialized, {}};
}
codeset.memory = std::move(program_image);
const VAddr base_address = GetInteger(process.GetEntryPoint());
process.LoadModule(std::move(codeset), base_address);
LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", kip->GetName(), base_address);
is_loaded = true;
return {ResultStatus::Success,
LoadParameters{kip->GetMainThreadPriority(), kip->GetMainThreadStackSize()}};
}
} // namespace Loader
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