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-rw-r--r--src/core/loader/deconstructed_rom_directory.cpp75
-rw-r--r--src/core/loader/nso.cpp41
-rw-r--r--src/core/loader/nso.h3
3 files changed, 80 insertions, 39 deletions
diff --git a/src/core/loader/deconstructed_rom_directory.cpp b/src/core/loader/deconstructed_rom_directory.cpp
index 1e599e78b..9b75c660c 100644
--- a/src/core/loader/deconstructed_rom_directory.cpp
+++ b/src/core/loader/deconstructed_rom_directory.cpp
@@ -19,8 +19,54 @@
#include "core/arm/nce/patcher.h"
#endif
+#ifndef HAS_NCE
+namespace Core::NCE {
+class Patcher {};
+} // namespace Core::NCE
+#endif
+
namespace Loader {
+struct PatchCollection {
+ explicit PatchCollection(bool is_application_) : is_application{is_application_} {
+ module_patcher_indices.fill(-1);
+ patchers.emplace_back();
+ }
+
+ std::vector<Core::NCE::Patcher>* GetPatchers() {
+ if (is_application && Settings::IsNceEnabled()) {
+ return &patchers;
+ }
+ return nullptr;
+ }
+
+ size_t GetTotalPatchSize() const {
+ size_t total_size{};
+#ifdef HAS_NCE
+ for (auto& patcher : patchers) {
+ total_size += patcher.GetSectionSize();
+ }
+#endif
+ return total_size;
+ }
+
+ void SaveIndex(size_t module) {
+ module_patcher_indices[module] = static_cast<s32>(patchers.size() - 1);
+ }
+
+ s32 GetIndex(size_t module) const {
+ return module_patcher_indices[module];
+ }
+
+ s32 GetLastIndex() const {
+ return static_cast<s32>(patchers.size()) - 1;
+ }
+
+ bool is_application;
+ std::vector<Core::NCE::Patcher> patchers;
+ std::array<s32, 13> module_patcher_indices{};
+};
+
AppLoader_DeconstructedRomDirectory::AppLoader_DeconstructedRomDirectory(FileSys::VirtualFile file_,
bool override_update_)
: AppLoader(std::move(file_)), override_update(override_update_), is_hbl(false) {
@@ -142,18 +188,7 @@ AppLoader_DeconstructedRomDirectory::LoadResult AppLoader_DeconstructedRomDirect
std::size_t code_size{};
// Define an nce patch context for each potential module.
-#ifdef HAS_NCE
- std::array<Core::NCE::Patcher, 13> module_patchers;
-#endif
-
- const auto GetPatcher = [&](size_t i) -> Core::NCE::Patcher* {
-#ifdef HAS_NCE
- if (is_application && Settings::IsNceEnabled()) {
- return &module_patchers[i];
- }
-#endif
- return nullptr;
- };
+ PatchCollection patch_ctx{is_application};
// Use the NSO module loader to figure out the code layout
for (size_t i = 0; i < static_modules.size(); i++) {
@@ -164,13 +199,14 @@ AppLoader_DeconstructedRomDirectory::LoadResult AppLoader_DeconstructedRomDirect
}
const bool should_pass_arguments = std::strcmp(module, "rtld") == 0;
- const auto tentative_next_load_addr =
- AppLoader_NSO::LoadModule(process, system, *module_file, code_size,
- should_pass_arguments, false, {}, GetPatcher(i));
+ const auto tentative_next_load_addr = AppLoader_NSO::LoadModule(
+ process, system, *module_file, code_size, should_pass_arguments, false, {},
+ patch_ctx.GetPatchers(), patch_ctx.GetLastIndex());
if (!tentative_next_load_addr) {
return {ResultStatus::ErrorLoadingNSO, {}};
}
+ patch_ctx.SaveIndex(i);
code_size = *tentative_next_load_addr;
}
@@ -184,6 +220,9 @@ AppLoader_DeconstructedRomDirectory::LoadResult AppLoader_DeconstructedRomDirect
return 0;
}();
+ // Add patch size to the total module size
+ code_size += patch_ctx.GetTotalPatchSize();
+
// Setup the process code layout
if (process.LoadFromMetadata(metadata, code_size, fastmem_base, is_hbl).IsError()) {
return {ResultStatus::ErrorUnableToParseKernelMetadata, {}};
@@ -204,9 +243,9 @@ AppLoader_DeconstructedRomDirectory::LoadResult AppLoader_DeconstructedRomDirect
const VAddr load_addr{next_load_addr};
const bool should_pass_arguments = std::strcmp(module, "rtld") == 0;
- const auto tentative_next_load_addr =
- AppLoader_NSO::LoadModule(process, system, *module_file, load_addr,
- should_pass_arguments, true, pm, GetPatcher(i));
+ const auto tentative_next_load_addr = AppLoader_NSO::LoadModule(
+ process, system, *module_file, load_addr, should_pass_arguments, true, pm,
+ patch_ctx.GetPatchers(), patch_ctx.GetIndex(i));
if (!tentative_next_load_addr) {
return {ResultStatus::ErrorLoadingNSO, {}};
}
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
diff --git a/src/core/loader/nso.h b/src/core/loader/nso.h
index 29b86ed4c..6356697e3 100644
--- a/src/core/loader/nso.h
+++ b/src/core/loader/nso.h
@@ -93,7 +93,8 @@ public:
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 = nullptr);
+ std::vector<Core::NCE::Patcher>* patches = nullptr,
+ s32 patch_index = -1);
LoadResult Load(Kernel::KProcess& process, Core::System& system) override;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 15:32:03 +0100