From e09505ff6147815d7d3c7adcc0d260638cf49706 Mon Sep 17 00:00:00 2001 From: Zach Hilman Date: Sun, 30 Sep 2018 14:04:48 -0400 Subject: [PATCH] nso/nro: Add NSO arguments structure to data section Only added if arguments string is non-empty and a pass is requested by loader. --- src/core/loader/deconstructed_rom_directory.cpp | 4 +++- src/core/loader/nro.cpp | 13 +++++++++++++ src/core/loader/nso.cpp | 15 ++++++++++++++- src/core/loader/nso.h | 9 ++++++++- 4 files changed, 38 insertions(+), 3 deletions(-) diff --git a/src/core/loader/deconstructed_rom_directory.cpp b/src/core/loader/deconstructed_rom_directory.cpp index 9a86e5824..61808d094 100644 --- a/src/core/loader/deconstructed_rom_directory.cpp +++ b/src/core/loader/deconstructed_rom_directory.cpp @@ -3,6 +3,7 @@ // Refer to the license.txt file included. #include +#include #include "common/common_funcs.h" #include "common/file_util.h" #include "common/logging/log.h" @@ -140,7 +141,8 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(Kernel::Process& process) const FileSys::VirtualFile module_file = dir->GetFile(module); if (module_file != nullptr) { const VAddr load_addr = next_load_addr; - next_load_addr = AppLoader_NSO::LoadModule(module_file, load_addr, pm); + next_load_addr = + AppLoader_NSO::LoadModule(module_file, load_addr, std::strcmp(module, "rtld") == 0, pm); LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", module, load_addr); // Register module with GDBStub GDBStub::RegisterModule(module, load_addr, next_load_addr - 1, false); diff --git a/src/core/loader/nro.cpp b/src/core/loader/nro.cpp index c10f826a4..4109b9974 100644 --- a/src/core/loader/nro.cpp +++ b/src/core/loader/nro.cpp @@ -18,7 +18,9 @@ #include "core/hle/kernel/process.h" #include "core/hle/kernel/vm_manager.h" #include "core/loader/nro.h" +#include "core/loader/nso.h" #include "core/memory.h" +#include "core/settings.h" namespace Loader { @@ -150,6 +152,17 @@ bool AppLoader_NRO::LoadNro(FileSys::VirtualFile file, VAddr load_base) { codeset->segments[i].size = PageAlignSize(nro_header.segments[i].size); } + if (!Settings::values.program_args.empty()) { + const auto arg_data = Settings::values.program_args; + codeset->DataSegment().size += 0x9000; + NSOArgumentHeader args_header{0x9000, arg_data.size(), {}}; + program_image.resize(static_cast(program_image.size()) + 0x9000); + std::memcpy(program_image.data() + program_image.size() - 0x9000, &args_header, + sizeof(NSOArgumentHeader)); + std::memcpy(program_image.data() + program_image.size() - 0x8FE0, arg_data.data(), + arg_data.size()); + } + // Read MOD header ModHeader mod_header{}; // Default .bss to NRO header bss size if MOD0 section doesn't exist diff --git a/src/core/loader/nso.cpp b/src/core/loader/nso.cpp index 2186b02af..8ee2c6f2b 100644 --- a/src/core/loader/nso.cpp +++ b/src/core/loader/nso.cpp @@ -17,6 +17,7 @@ #include "core/hle/kernel/vm_manager.h" #include "core/loader/nso.h" #include "core/memory.h" +#include "core/settings.h" namespace Loader { @@ -94,6 +95,7 @@ static constexpr u32 PageAlignSize(u32 size) { } VAddr AppLoader_NSO::LoadModule(FileSys::VirtualFile file, VAddr load_base, + bool should_pass_arguments, boost::optional pm) { if (file == nullptr) return {}; @@ -125,6 +127,17 @@ VAddr AppLoader_NSO::LoadModule(FileSys::VirtualFile file, VAddr load_base, codeset->segments[i].size = PageAlignSize(static_cast(data.size())); } + if (should_pass_arguments && !Settings::values.program_args.empty()) { + const auto arg_data = Settings::values.program_args; + codeset->DataSegment().size += 0x9000; + NSOArgumentHeader args_header{0x9000, arg_data.size(), {}}; + program_image.resize(static_cast(program_image.size()) + 0x9000); + std::memcpy(program_image.data() + program_image.size() - 0x9000, &args_header, + sizeof(NSOArgumentHeader)); + std::memcpy(program_image.data() + program_image.size() - 0x8FE0, arg_data.data(), + arg_data.size()); + } + // MOD header pointer is at .text offset + 4 u32 module_offset; std::memcpy(&module_offset, program_image.data() + 4, sizeof(u32)); @@ -172,7 +185,7 @@ ResultStatus AppLoader_NSO::Load(Kernel::Process& process) { // Load module const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress(); - LoadModule(file, base_address); + LoadModule(file, base_address, true); LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", file->GetName(), base_address); process.Run(base_address, Kernel::THREADPRIO_DEFAULT, Memory::DEFAULT_STACK_SIZE); diff --git a/src/core/loader/nso.h b/src/core/loader/nso.h index 05353d4d9..7833af6ee 100644 --- a/src/core/loader/nso.h +++ b/src/core/loader/nso.h @@ -11,6 +11,13 @@ namespace Loader { +struct NSOArgumentHeader { + u32_le allocated_size; + u32_le actual_size; + INSERT_PADDING_BYTES(0x18); +}; +static_assert(sizeof(NSOArgumentHeader) == 0x20, "NSOArgumentHeader has incorrect size."); + /// Loads an NSO file class AppLoader_NSO final : public AppLoader, Linker { public: @@ -27,7 +34,7 @@ public: return IdentifyType(file); } - static VAddr LoadModule(FileSys::VirtualFile file, VAddr load_base, + static VAddr LoadModule(FileSys::VirtualFile file, VAddr load_base, bool should_pass_arguments, boost::optional pm = boost::none); ResultStatus Load(Kernel::Process& process) override;