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-rw-r--r--src/core/loader/deconstructed_rom_directory.cpp63
-rw-r--r--src/core/loader/kip.cpp3
-rw-r--r--src/core/loader/nro.cpp63
-rw-r--r--src/core/loader/nro.h2
-rw-r--r--src/core/loader/nso.cpp67
-rw-r--r--src/core/loader/nso.h7
6 files changed, 174 insertions, 31 deletions
diff --git a/src/core/loader/deconstructed_rom_directory.cpp b/src/core/loader/deconstructed_rom_directory.cpp
index 5c36b71e5..60ee78e89 100644
--- a/src/core/loader/deconstructed_rom_directory.cpp
+++ b/src/core/loader/deconstructed_rom_directory.cpp
@@ -3,6 +3,7 @@
#include <cstring>
#include "common/logging/log.h"
+#include "common/settings.h"
#include "core/core.h"
#include "core/file_sys/content_archive.h"
#include "core/file_sys/control_metadata.h"
@@ -14,6 +15,10 @@
#include "core/loader/deconstructed_rom_directory.h"
#include "core/loader/nso.h"
+#ifdef HAS_NCE
+#include "core/arm/nce/patcher.h"
+#endif
+
namespace Loader {
AppLoader_DeconstructedRomDirectory::AppLoader_DeconstructedRomDirectory(FileSys::VirtualFile file_,
@@ -124,21 +129,43 @@ AppLoader_DeconstructedRomDirectory::LoadResult AppLoader_DeconstructedRomDirect
}
metadata.Print();
- const auto static_modules = {"rtld", "main", "subsdk0", "subsdk1", "subsdk2",
- "subsdk3", "subsdk4", "subsdk5", "subsdk6", "subsdk7",
- "subsdk8", "subsdk9", "sdk"};
+ // Enable NCE only for programs with 39-bit address space.
+ const bool is_39bit =
+ metadata.GetAddressSpaceType() == FileSys::ProgramAddressSpaceType::Is39Bit;
+ Settings::SetNceEnabled(is_39bit);
+
+ const std::array static_modules = {"rtld", "main", "subsdk0", "subsdk1", "subsdk2",
+ "subsdk3", "subsdk4", "subsdk5", "subsdk6", "subsdk7",
+ "subsdk8", "subsdk9", "sdk"};
- // Use the NSO module loader to figure out the code layout
std::size_t code_size{};
- for (const auto& module : static_modules) {
+
+ // 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 (Settings::IsNceEnabled()) {
+ return &module_patchers[i];
+ }
+#endif
+ return nullptr;
+ };
+
+ // Use the NSO module loader to figure out the code layout
+ for (size_t i = 0; i < static_modules.size(); i++) {
+ const auto& module = static_modules[i];
const FileSys::VirtualFile module_file{dir->GetFile(module)};
if (!module_file) {
continue;
}
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);
+ const auto tentative_next_load_addr =
+ AppLoader_NSO::LoadModule(process, system, *module_file, code_size,
+ should_pass_arguments, false, {}, GetPatcher(i));
if (!tentative_next_load_addr) {
return {ResultStatus::ErrorLoadingNSO, {}};
}
@@ -146,8 +173,18 @@ AppLoader_DeconstructedRomDirectory::LoadResult AppLoader_DeconstructedRomDirect
code_size = *tentative_next_load_addr;
}
+ // Enable direct memory mapping in case of NCE.
+ const u64 fastmem_base = [&]() -> size_t {
+ if (Settings::IsNceEnabled()) {
+ auto& buffer = system.DeviceMemory().buffer;
+ buffer.EnableDirectMappedAddress();
+ return reinterpret_cast<u64>(buffer.VirtualBasePointer());
+ }
+ return 0;
+ }();
+
// Setup the process code layout
- if (process.LoadFromMetadata(metadata, code_size, is_hbl).IsError()) {
+ if (process.LoadFromMetadata(metadata, code_size, fastmem_base, is_hbl).IsError()) {
return {ResultStatus::ErrorUnableToParseKernelMetadata, {}};
}
@@ -157,7 +194,8 @@ AppLoader_DeconstructedRomDirectory::LoadResult AppLoader_DeconstructedRomDirect
VAddr next_load_addr{base_address};
const FileSys::PatchManager pm{metadata.GetTitleID(), system.GetFileSystemController(),
system.GetContentProvider()};
- for (const auto& module : static_modules) {
+ for (size_t i = 0; i < static_modules.size(); i++) {
+ const auto& module = static_modules[i];
const FileSys::VirtualFile module_file{dir->GetFile(module)};
if (!module_file) {
continue;
@@ -165,15 +203,16 @@ 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);
+ const auto tentative_next_load_addr =
+ AppLoader_NSO::LoadModule(process, system, *module_file, load_addr,
+ should_pass_arguments, true, pm, GetPatcher(i));
if (!tentative_next_load_addr) {
return {ResultStatus::ErrorLoadingNSO, {}};
}
next_load_addr = *tentative_next_load_addr;
modules.insert_or_assign(load_addr, module);
- LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", module, load_addr);
+ LOG_DEBUG(Loader, "loaded module {} @ {:#X}", module, load_addr);
}
// Find the RomFS by searching for a ".romfs" file in this directory
diff --git a/src/core/loader/kip.cpp b/src/core/loader/kip.cpp
index bf56a08b4..cd6982921 100644
--- a/src/core/loader/kip.cpp
+++ b/src/core/loader/kip.cpp
@@ -91,7 +91,8 @@ AppLoader::LoadResult AppLoader_KIP::Load(Kernel::KProcess& process,
// Setup the process code layout
if (process
- .LoadFromMetadata(FileSys::ProgramMetadata::GetDefault(), program_image.size(), false)
+ .LoadFromMetadata(FileSys::ProgramMetadata::GetDefault(), program_image.size(), 0,
+ false)
.IsError()) {
return {ResultStatus::ErrorNotInitialized, {}};
}
diff --git a/src/core/loader/nro.cpp b/src/core/loader/nro.cpp
index 69f1a54ed..e74697cda 100644
--- a/src/core/loader/nro.cpp
+++ b/src/core/loader/nro.cpp
@@ -22,6 +22,10 @@
#include "core/loader/nso.h"
#include "core/memory.h"
+#ifdef HAS_NCE
+#include "core/arm/nce/patcher.h"
+#endif
+
namespace Loader {
struct NroSegmentHeader {
@@ -139,7 +143,8 @@ static constexpr u32 PageAlignSize(u32 size) {
return static_cast<u32>((size + Core::Memory::YUZU_PAGEMASK) & ~Core::Memory::YUZU_PAGEMASK);
}
-static bool LoadNroImpl(Kernel::KProcess& process, const std::vector<u8>& data) {
+static bool LoadNroImpl(Core::System& system, Kernel::KProcess& process,
+ const std::vector<u8>& data) {
if (data.size() < sizeof(NroHeader)) {
return {};
}
@@ -194,14 +199,61 @@ static bool LoadNroImpl(Kernel::KProcess& process, const std::vector<u8>& data)
codeset.DataSegment().size += bss_size;
program_image.resize(static_cast<u32>(program_image.size()) + bss_size);
+ size_t image_size = program_image.size();
+
+#ifdef HAS_NCE
+ const auto& code = codeset.CodeSegment();
+
+ // NROs always have a 39-bit address space.
+ Settings::SetNceEnabled(true);
+
+ // Create NCE patcher
+ Core::NCE::Patcher patch{};
+
+ if (Settings::IsNceEnabled()) {
+ // Patch SVCs and MRS calls in the guest code
+ patch.PatchText(program_image, code);
+
+ // We only support PostData patching for NROs.
+ ASSERT(patch.GetPatchMode() == Core::NCE::PatchMode::PostData);
+
+ // Update patch section.
+ auto& patch_segment = codeset.PatchSegment();
+ patch_segment.addr = image_size;
+ patch_segment.size = static_cast<u32>(patch.GetSectionSize());
+
+ // Add patch section size to the module size.
+ image_size += patch_segment.size;
+ }
+#endif
+
+ // Enable direct memory mapping in case of NCE.
+ const u64 fastmem_base = [&]() -> size_t {
+ if (Settings::IsNceEnabled()) {
+ auto& buffer = system.DeviceMemory().buffer;
+ buffer.EnableDirectMappedAddress();
+ return reinterpret_cast<u64>(buffer.VirtualBasePointer());
+ }
+ return 0;
+ }();
// Setup the process code layout
if (process
- .LoadFromMetadata(FileSys::ProgramMetadata::GetDefault(), program_image.size(), false)
+ .LoadFromMetadata(FileSys::ProgramMetadata::GetDefault(), image_size, fastmem_base,
+ false)
.IsError()) {
return false;
}
+ // Relocate code patch and copy to the program_image if running under NCE.
+ // This needs to be after LoadFromMetadata so we can use the process entry point.
+#ifdef HAS_NCE
+ if (Settings::IsNceEnabled()) {
+ patch.RelocateAndCopy(process.GetEntryPoint(), code, program_image,
+ &process.GetPostHandlers());
+ }
+#endif
+
// Load codeset for current process
codeset.memory = std::move(program_image);
process.LoadModule(std::move(codeset), process.GetEntryPoint());
@@ -209,8 +261,9 @@ static bool LoadNroImpl(Kernel::KProcess& process, const std::vector<u8>& data)
return true;
}
-bool AppLoader_NRO::LoadNro(Kernel::KProcess& process, const FileSys::VfsFile& nro_file) {
- return LoadNroImpl(process, nro_file.ReadAllBytes());
+bool AppLoader_NRO::LoadNro(Core::System& system, Kernel::KProcess& process,
+ const FileSys::VfsFile& nro_file) {
+ return LoadNroImpl(system, process, nro_file.ReadAllBytes());
}
AppLoader_NRO::LoadResult AppLoader_NRO::Load(Kernel::KProcess& process, Core::System& system) {
@@ -218,7 +271,7 @@ AppLoader_NRO::LoadResult AppLoader_NRO::Load(Kernel::KProcess& process, Core::S
return {ResultStatus::ErrorAlreadyLoaded, {}};
}
- if (!LoadNro(process, *file)) {
+ if (!LoadNro(system, process, *file)) {
return {ResultStatus::ErrorLoadingNRO, {}};
}
diff --git a/src/core/loader/nro.h b/src/core/loader/nro.h
index 8de6eebc6..d2928cba0 100644
--- a/src/core/loader/nro.h
+++ b/src/core/loader/nro.h
@@ -54,7 +54,7 @@ public:
bool IsRomFSUpdatable() const override;
private:
- bool LoadNro(Kernel::KProcess& process, const FileSys::VfsFile& nro_file);
+ bool LoadNro(Core::System& system, Kernel::KProcess& process, const FileSys::VfsFile& nro_file);
std::vector<u8> icon_data;
std::unique_ptr<FileSys::NACP> nacp;
diff --git a/src/core/loader/nso.cpp b/src/core/loader/nso.cpp
index 1350da8dc..b053a0d14 100644
--- a/src/core/loader/nso.cpp
+++ b/src/core/loader/nso.cpp
@@ -20,6 +20,10 @@
#include "core/loader/nso.h"
#include "core/memory.h"
+#ifdef HAS_NCE
+#include "core/arm/nce/patcher.h"
+#endif
+
namespace Loader {
namespace {
struct MODHeader {
@@ -72,7 +76,8 @@ FileType AppLoader_NSO::IdentifyType(const FileSys::VirtualFile& in_file) {
std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::KProcess& process, Core::System& system,
const FileSys::VfsFile& nso_file, VAddr load_base,
bool should_pass_arguments, bool load_into_process,
- std::optional<FileSys::PatchManager> pm) {
+ std::optional<FileSys::PatchManager> pm,
+ Core::NCE::Patcher* patch) {
if (nso_file.GetSize() < sizeof(NSOHeader)) {
return std::nullopt;
}
@@ -86,6 +91,16 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::KProcess& process, Core::
return std::nullopt;
}
+ // 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();
+ }
+#endif
+ return 0;
+ }();
+
// Build program image
Kernel::CodeSet codeset;
Kernel::PhysicalMemory program_image;
@@ -95,11 +110,12 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::KProcess& process, Core::
if (nso_header.IsSegmentCompressed(i)) {
data = DecompressSegment(data, nso_header.segments[i]);
}
- program_image.resize(nso_header.segments[i].location + static_cast<u32>(data.size()));
- std::memcpy(program_image.data() + nso_header.segments[i].location, data.data(),
- data.size());
- codeset.segments[i].addr = nso_header.segments[i].location;
- codeset.segments[i].offset = nso_header.segments[i].location;
+ program_image.resize(module_start + nso_header.segments[i].location +
+ static_cast<u32>(data.size()));
+ std::memcpy(program_image.data() + module_start + nso_header.segments[i].location,
+ data.data(), data.size());
+ codeset.segments[i].addr = module_start + nso_header.segments[i].location;
+ codeset.segments[i].offset = module_start + nso_header.segments[i].location;
codeset.segments[i].size = nso_header.segments[i].size;
}
@@ -118,7 +134,7 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::KProcess& process, Core::
}
codeset.DataSegment().size += nso_header.segments[2].bss_size;
- const u32 image_size{
+ u32 image_size{
PageAlignSize(static_cast<u32>(program_image.size()) + nso_header.segments[2].bss_size)};
program_image.resize(image_size);
@@ -129,15 +145,44 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::KProcess& process, Core::
// Apply patches if necessary
const auto name = nso_file.GetName();
if (pm && (pm->HasNSOPatch(nso_header.build_id, name) || Settings::values.dump_nso)) {
- std::vector<u8> pi_header(sizeof(NSOHeader) + program_image.size());
+ std::span<u8> patchable_section(program_image.data() + module_start,
+ program_image.size() - module_start);
+ std::vector<u8> pi_header(sizeof(NSOHeader) + patchable_section.size());
std::memcpy(pi_header.data(), &nso_header, sizeof(NSOHeader));
- std::memcpy(pi_header.data() + sizeof(NSOHeader), program_image.data(),
- program_image.size());
+ std::memcpy(pi_header.data() + sizeof(NSOHeader), patchable_section.data(),
+ patchable_section.size());
pi_header = pm->PatchNSO(pi_header, name);
- std::copy(pi_header.begin() + sizeof(NSOHeader), pi_header.end(), program_image.data());
+ std::copy(pi_header.begin() + sizeof(NSOHeader), pi_header.end(), patchable_section.data());
+ }
+
+#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) {
+ // 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());
+ } 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;
+ }
}
+#endif
// If we aren't actually loading (i.e. just computing the process code layout), we are done
if (!load_into_process) {
diff --git a/src/core/loader/nso.h b/src/core/loader/nso.h
index 0b53b4ecd..29b86ed4c 100644
--- a/src/core/loader/nso.h
+++ b/src/core/loader/nso.h
@@ -15,6 +15,10 @@ namespace Core {
class System;
}
+namespace Core::NCE {
+class Patcher;
+}
+
namespace Kernel {
class KProcess;
}
@@ -88,7 +92,8 @@ public:
static std::optional<VAddr> LoadModule(Kernel::KProcess& process, Core::System& system,
const FileSys::VfsFile& nso_file, VAddr load_base,
bool should_pass_arguments, bool load_into_process,
- std::optional<FileSys::PatchManager> pm = {});
+ std::optional<FileSys::PatchManager> pm = {},
+ Core::NCE::Patcher* patch = nullptr);
LoadResult Load(Kernel::KProcess& process, Core::System& system) override;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 02:30:00 +0100