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-rw-r--r--src/core/loader/deconstructed_rom_directory.cpp47
-rw-r--r--src/core/loader/nso.cpp22
-rw-r--r--src/core/loader/nso.h3
3 files changed, 47 insertions, 25 deletions
diff --git a/src/core/loader/deconstructed_rom_directory.cpp b/src/core/loader/deconstructed_rom_directory.cpp
index 53559e8b1..134e83412 100644
--- a/src/core/loader/deconstructed_rom_directory.cpp
+++ b/src/core/loader/deconstructed_rom_directory.cpp
@@ -14,6 +14,7 @@
#include "core/file_sys/romfs_factory.h"
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/loader/deconstructed_rom_directory.h"
@@ -129,27 +130,47 @@ AppLoader_DeconstructedRomDirectory::LoadResult AppLoader_DeconstructedRomDirect
}
metadata.Print();
- if (process.LoadFromMetadata(metadata).IsError()) {
- return {ResultStatus::ErrorUnableToParseKernelMetadata, {}};
+ const auto static_modules = {"rtld", "main", "subsdk0", "subsdk1", "subsdk2", "subsdk3",
+ "subsdk4", "subsdk5", "subsdk6", "subsdk7", "sdk"};
+
+ // Use the NSO module loader to figure out the code layout
+ std::size_t code_size{};
+ for (const auto& module : static_modules) {
+ 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, *module_file, code_size, should_pass_arguments, false)};
+ if (!tentative_next_load_addr) {
+ return {ResultStatus::ErrorLoadingNSO, {}};
+ }
+
+ code_size = *tentative_next_load_addr;
}
- const FileSys::PatchManager pm(metadata.GetTitleID());
+ // Setup the process code layout
+ if (process.LoadFromMetadata(metadata, code_size).IsError()) {
+ return {ResultStatus::ErrorUnableToParseKernelMetadata, {}};
+ }
// Load NSO modules
modules.clear();
- const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
- VAddr next_load_addr = base_address;
- for (const auto& module : {"rtld", "main", "subsdk0", "subsdk1", "subsdk2", "subsdk3",
- "subsdk4", "subsdk5", "subsdk6", "subsdk7", "sdk"}) {
- const FileSys::VirtualFile module_file = dir->GetFile(module);
- if (module_file == nullptr) {
+ const VAddr base_address{process.PageTable().GetCodeRegionStart()};
+ VAddr next_load_addr{base_address};
+ const FileSys::PatchManager pm{metadata.GetTitleID()};
+ for (const auto& module : static_modules) {
+ const FileSys::VirtualFile module_file{dir->GetFile(module)};
+ if (!module_file) {
continue;
}
- 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, *module_file, load_addr, should_pass_arguments, pm);
+ 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, *module_file, load_addr, should_pass_arguments, true, pm)};
if (!tentative_next_load_addr) {
return {ResultStatus::ErrorLoadingNSO, {}};
}
diff --git a/src/core/loader/nso.cpp b/src/core/loader/nso.cpp
index ce9d52309..612ff9bf6 100644
--- a/src/core/loader/nso.cpp
+++ b/src/core/loader/nso.cpp
@@ -16,8 +16,8 @@
#include "core/file_sys/patch_manager.h"
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/code_set.h"
+#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process.h"
-#include "core/hle/kernel/vm_manager.h"
#include "core/loader/nso.h"
#include "core/memory.h"
#include "core/settings.h"
@@ -73,7 +73,7 @@ FileType AppLoader_NSO::IdentifyType(const FileSys::VirtualFile& file) {
std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::Process& process,
const FileSys::VfsFile& file, VAddr load_base,
- bool should_pass_arguments,
+ bool should_pass_arguments, bool load_into_process,
std::optional<FileSys::PatchManager> pm) {
if (file.GetSize() < sizeof(NSOHeader)) {
return {};
@@ -105,12 +105,9 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::Process& process,
codeset.segments[i].size = nso_header.segments[i].size;
}
- if (should_pass_arguments) {
- std::vector<u8> arg_data{Settings::values.program_args.begin(),
- Settings::values.program_args.end()};
- if (arg_data.empty()) {
- arg_data.resize(NSO_ARGUMENT_DEFAULT_SIZE);
- }
+ if (should_pass_arguments && !Settings::values.program_args.empty()) {
+ const auto arg_data{Settings::values.program_args};
+
codeset.DataSegment().size += NSO_ARGUMENT_DATA_ALLOCATION_SIZE;
NSOArgumentHeader args_header{
NSO_ARGUMENT_DATA_ALLOCATION_SIZE, static_cast<u32_le>(arg_data.size()), {}};
@@ -144,6 +141,11 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::Process& process,
std::copy(pi_header.begin() + sizeof(NSOHeader), pi_header.end(), program_image.data());
}
+ // If we aren't actually loading (i.e. just computing the process code layout), we are done
+ if (!load_into_process) {
+ return load_base + image_size;
+ }
+
// Apply cheats if they exist and the program has a valid title ID
if (pm) {
auto& system = Core::System::GetInstance();
@@ -172,8 +174,8 @@ AppLoader_NSO::LoadResult AppLoader_NSO::Load(Kernel::Process& process) {
modules.clear();
// Load module
- const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
- if (!LoadModule(process, *file, base_address, true)) {
+ const VAddr base_address = process.PageTable().GetCodeRegionStart();
+ if (!LoadModule(process, *file, base_address, true, true)) {
return {ResultStatus::ErrorLoadingNSO, {}};
}
diff --git a/src/core/loader/nso.h b/src/core/loader/nso.h
index d2d600cd9..b210830f0 100644
--- a/src/core/loader/nso.h
+++ b/src/core/loader/nso.h
@@ -56,8 +56,6 @@ static_assert(sizeof(NSOHeader) == 0x100, "NSOHeader has incorrect size.");
static_assert(std::is_trivially_copyable_v<NSOHeader>, "NSOHeader must be trivially copyable.");
constexpr u64 NSO_ARGUMENT_DATA_ALLOCATION_SIZE = 0x9000;
-// NOTE: Official software default argument state is unverified.
-constexpr u64 NSO_ARGUMENT_DEFAULT_SIZE = 1;
struct NSOArgumentHeader {
u32_le allocated_size;
@@ -84,6 +82,7 @@ public:
static std::optional<VAddr> LoadModule(Kernel::Process& process, const FileSys::VfsFile& file,
VAddr load_base, bool should_pass_arguments,
+ bool load_into_process,
std::optional<FileSys::PatchManager> pm = {});
LoadResult Load(Kernel::Process& process) override;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 02:53:23 +0200