mirror of
https://github.com/skyline-emu/skyline.git
synced 2024-06-18 21:18:48 +02:00
73 lines
3.0 KiB
C++
73 lines
3.0 KiB
C++
// SPDX-License-Identifier: MPL-2.0
|
|
// Copyright © 2020 Skyline Team and Contributors (https://github.com/skyline-emu/)
|
|
|
|
#include <nce.h>
|
|
#include <kernel/types/KProcess.h>
|
|
#include <vfs/nacp.h>
|
|
#include <vfs/region_backing.h>
|
|
#include "nro.h"
|
|
|
|
namespace skyline::loader {
|
|
NroLoader::NroLoader(const std::shared_ptr<vfs::Backing> &backing) : backing(backing) {
|
|
header = backing->Read<NroHeader>();
|
|
|
|
if (header.magic != util::MakeMagic<u32>("NRO0"))
|
|
throw exception("Invalid NRO magic! 0x{0:X}", header.magic);
|
|
|
|
// The homebrew asset section is appended to the end of an NRO file
|
|
if (backing->size > header.size) {
|
|
assetHeader = backing->Read<NroAssetHeader>(header.size);
|
|
|
|
if (assetHeader.magic != util::MakeMagic<u32>("ASET"))
|
|
throw exception("Invalid ASET magic! 0x{0:X}", assetHeader.magic);
|
|
|
|
NroAssetSection &nacpHeader{assetHeader.nacp};
|
|
nacp.emplace(std::make_shared<vfs::RegionBacking>(backing, header.size + nacpHeader.offset, nacpHeader.size));
|
|
|
|
NroAssetSection &romFsHeader{assetHeader.romFs};
|
|
romFs = std::make_shared<vfs::RegionBacking>(backing, header.size + romFsHeader.offset, romFsHeader.size);
|
|
}
|
|
}
|
|
|
|
std::vector<u8> NroLoader::GetIcon() {
|
|
NroAssetSection &segmentHeader{assetHeader.icon};
|
|
std::vector<u8> buffer(segmentHeader.size);
|
|
|
|
backing->Read(buffer, header.size + segmentHeader.offset);
|
|
return buffer;
|
|
}
|
|
|
|
std::vector<u8> NroLoader::GetSegment(const NroSegmentHeader &segment) {
|
|
std::vector<u8> buffer(segment.size);
|
|
|
|
backing->Read(buffer, segment.offset);
|
|
return buffer;
|
|
}
|
|
|
|
void *NroLoader::LoadProcessData(const std::shared_ptr<kernel::type::KProcess> process, const DeviceState &state) {
|
|
Executable executable{};
|
|
|
|
executable.text.contents = GetSegment(header.text);
|
|
executable.text.offset = 0;
|
|
|
|
executable.ro.contents = GetSegment(header.ro);
|
|
executable.ro.offset = header.text.size;
|
|
|
|
executable.data.contents = GetSegment(header.data);
|
|
executable.data.offset = header.text.size + header.ro.size;
|
|
|
|
executable.bssSize = header.bssSize;
|
|
|
|
if (header.dynsym.offset > header.ro.offset && header.dynsym.offset + header.dynsym.size < header.ro.offset + header.ro.size && header.dynstr.offset > header.ro.offset && header.dynstr.offset + header.dynstr.size < header.ro.offset + header.ro.size) {
|
|
executable.dynsym = {header.dynsym.offset, header.dynsym.size};
|
|
executable.dynstr = {header.dynstr.offset, header.dynstr.size};
|
|
}
|
|
|
|
state.process->memory.InitializeVmm(memory::AddressSpaceType::AddressSpace39Bit);
|
|
auto loadInfo{LoadExecutable(process, state, executable, 0, nacp->applicationName.empty() ? "main.nro" : nacp->applicationName + ".nro")};
|
|
state.process->memory.InitializeRegions(loadInfo.base, loadInfo.size);
|
|
|
|
return loadInfo.entry;
|
|
}
|
|
}
|