9bede4eeed
This commit ensures that all backing memory allocated for the Guest CPU is aligned to 256 bytes. This due to how gpu memory works and the heavy constraints it has in the alignment of physical memory.
103 lines
3.7 KiB
C++
103 lines
3.7 KiB
C++
// Copyright 2019 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "core/file_sys/kernel_executable.h"
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#include "core/file_sys/program_metadata.h"
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#include "core/gdbstub/gdbstub.h"
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#include "core/hle/kernel/code_set.h"
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#include "core/hle/kernel/process.h"
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#include "core/loader/kip.h"
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namespace Loader {
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namespace {
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constexpr u32 PageAlignSize(u32 size) {
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return (size + Memory::PAGE_MASK) & ~Memory::PAGE_MASK;
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}
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} // Anonymous namespace
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AppLoader_KIP::AppLoader_KIP(FileSys::VirtualFile file_)
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: AppLoader(std::move(file_)), kip(std::make_unique<FileSys::KIP>(file)) {}
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AppLoader_KIP::~AppLoader_KIP() = default;
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FileType AppLoader_KIP::IdentifyType(const FileSys::VirtualFile& file) {
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u32_le magic{};
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if (file->GetSize() < sizeof(u32) || file->ReadObject(&magic) != sizeof(u32)) {
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return FileType::Error;
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}
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if (magic == Common::MakeMagic('K', 'I', 'P', '1')) {
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return FileType::KIP;
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}
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return FileType::Error;
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}
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FileType AppLoader_KIP::GetFileType() const {
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return (kip != nullptr && kip->GetStatus() == ResultStatus::Success) ? FileType::KIP
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: FileType::Error;
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}
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AppLoader::LoadResult AppLoader_KIP::Load(Kernel::Process& process) {
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if (is_loaded) {
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return {ResultStatus::ErrorAlreadyLoaded, {}};
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}
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if (kip == nullptr) {
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return {ResultStatus::ErrorNullFile, {}};
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}
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if (kip->GetStatus() != ResultStatus::Success) {
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return {kip->GetStatus(), {}};
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}
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const auto get_kip_address_space_type = [](const auto& kip) {
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return kip.Is64Bit()
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? (kip.Is39BitAddressSpace() ? FileSys::ProgramAddressSpaceType::Is39Bit
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: FileSys::ProgramAddressSpaceType::Is36Bit)
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: FileSys::ProgramAddressSpaceType::Is32Bit;
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};
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const auto address_space = get_kip_address_space_type(*kip);
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FileSys::ProgramMetadata metadata;
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metadata.LoadManual(kip->Is64Bit(), address_space, kip->GetMainThreadPriority(),
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kip->GetMainThreadCpuCore(), kip->GetMainThreadStackSize(),
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kip->GetTitleID(), 0xFFFFFFFFFFFFFFFF, kip->GetKernelCapabilities());
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const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
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Kernel::CodeSet codeset;
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Kernel::PhysicalMemory program_image;
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const auto load_segment = [&program_image](Kernel::CodeSet::Segment& segment,
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const std::vector<u8>& data, u32 offset) {
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segment.addr = offset;
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segment.offset = offset;
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segment.size = PageAlignSize(static_cast<u32>(data.size()));
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program_image.resize(offset);
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program_image.insert(program_image.end(), data.begin(), data.end());
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};
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load_segment(codeset.CodeSegment(), kip->GetTextSection(), kip->GetTextOffset());
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load_segment(codeset.RODataSegment(), kip->GetRODataSection(), kip->GetRODataOffset());
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load_segment(codeset.DataSegment(), kip->GetDataSection(), kip->GetDataOffset());
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program_image.resize(PageAlignSize(kip->GetBSSOffset()) + kip->GetBSSSize());
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codeset.DataSegment().size += kip->GetBSSSize();
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GDBStub::RegisterModule(kip->GetName(), base_address, base_address + program_image.size());
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codeset.memory = std::move(program_image);
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process.LoadModule(std::move(codeset), base_address);
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LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", kip->GetName(), base_address);
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is_loaded = true;
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return {ResultStatus::Success,
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LoadParameters{kip->GetMainThreadPriority(), kip->GetMainThreadStackSize()}};
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}
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} // namespace Loader
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