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authorliamwhite <liamwhite@users.noreply.github.com>2024-01-15 19:52:38 +0100
committerGitHub <noreply@github.com>2024-01-15 19:52:38 +0100
commit04f4eeaca2722b901a60dffd955aed993c95bd05 (patch)
treea8a16cfc59ac26bb8a56fa80d91bf311fa03810e /src/core/loader/nso.cpp
parentMerge pull request #12665 from german77/proof (diff)
parentcore: Support multiple modules per patcher (diff)
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Diffstat (limited to 'src/core/loader/nso.cpp')
-rw-r--r--src/core/loader/nso.cpp41
1 files changed, 21 insertions, 20 deletions
diff --git a/src/core/loader/nso.cpp b/src/core/loader/nso.cpp
index b053a0d14..583b7e927 100644
--- a/src/core/loader/nso.cpp
+++ b/src/core/loader/nso.cpp
@@ -77,7 +77,8 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::KProcess& process, Core::
const FileSys::VfsFile& nso_file, VAddr load_base,
bool should_pass_arguments, bool load_into_process,
std::optional<FileSys::PatchManager> pm,
- Core::NCE::Patcher* patch) {
+ std::vector<Core::NCE::Patcher>* patches,
+ s32 patch_index) {
if (nso_file.GetSize() < sizeof(NSOHeader)) {
return std::nullopt;
}
@@ -94,8 +95,11 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::KProcess& process, Core::
// Allocate some space at the beginning if we are patching in PreText mode.
const size_t module_start = [&]() -> size_t {
#ifdef HAS_NCE
- if (patch && patch->GetPatchMode() == Core::NCE::PatchMode::PreText) {
- return patch->GetSectionSize();
+ if (patches && load_into_process) {
+ auto* patch = &patches->operator[](patch_index);
+ if (patch->GetPatchMode() == Core::NCE::PatchMode::PreText) {
+ return patch->GetSectionSize();
+ }
}
#endif
return 0;
@@ -160,27 +164,24 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::KProcess& process, Core::
#ifdef HAS_NCE
// If we are computing the process code layout and using nce backend, patch.
const auto& code = codeset.CodeSegment();
- if (patch && patch->GetPatchMode() == Core::NCE::PatchMode::None) {
+ auto* patch = patches ? &patches->operator[](patch_index) : nullptr;
+ if (patch && !load_into_process) {
// Patch SVCs and MRS calls in the guest code
- patch->PatchText(program_image, code);
-
- // Add patch section size to the module size.
- image_size += static_cast<u32>(patch->GetSectionSize());
+ while (!patch->PatchText(program_image, code)) {
+ patch = &patches->emplace_back();
+ }
} else if (patch) {
// Relocate code patch and copy to the program_image.
- patch->RelocateAndCopy(load_base, code, program_image, &process.GetPostHandlers());
-
- // Update patch section.
- auto& patch_segment = codeset.PatchSegment();
- patch_segment.addr =
- patch->GetPatchMode() == Core::NCE::PatchMode::PreText ? 0 : image_size;
- patch_segment.size = static_cast<u32>(patch->GetSectionSize());
-
- // Add patch section size to the module size. In PreText mode image_size
- // already contains the patch segment as part of module_start.
- if (patch->GetPatchMode() == Core::NCE::PatchMode::PostData) {
- image_size += patch_segment.size;
+ if (patch->RelocateAndCopy(load_base, code, program_image, &process.GetPostHandlers())) {
+ // Update patch section.
+ auto& patch_segment = codeset.PatchSegment();
+ patch_segment.addr =
+ patch->GetPatchMode() == Core::NCE::PatchMode::PreText ? 0 : image_size;
+ patch_segment.size = static_cast<u32>(patch->GetSectionSize());
}
+
+ // Refresh image_size to take account the patch section if it was added by RelocateAndCopy
+ image_size = static_cast<u32>(program_image.size());
}
#endif