diff options
Diffstat (limited to '')
-rw-r--r-- | src/core/loader/3dsx.cpp | 73 |
1 files changed, 47 insertions, 26 deletions
diff --git a/src/core/loader/3dsx.cpp b/src/core/loader/3dsx.cpp index 14aeebebb..530837d08 100644 --- a/src/core/loader/3dsx.cpp +++ b/src/core/loader/3dsx.cpp @@ -19,7 +19,7 @@ namespace Loader { -/** +/* * File layout: * - File header * - Code, rodata and data relocation table headers @@ -39,13 +39,16 @@ namespace Loader { * The entrypoint is always the start of the code segment. * The BSS section must be cleared manually by the application. */ + enum THREEDSX_Error { ERROR_NONE = 0, ERROR_READ = 1, ERROR_FILE = 2, ERROR_ALLOC = 3 }; + static const u32 RELOCBUFSIZE = 512; +static const unsigned int NUM_SEGMENTS = 3; // File header #pragma pack(1) @@ -98,7 +101,10 @@ static u32 TranslateAddr(u32 addr, const THREEloadinfo *loadinfo, u32* offsets) return loadinfo->seg_addrs[2] + addr - offsets[1]; } -static THREEDSX_Error Load3DSXFile(FileUtil::IOFile& file, u32 base_addr) +using Kernel::SharedPtr; +using Kernel::CodeSet; + +static THREEDSX_Error Load3DSXFile(FileUtil::IOFile& file, u32 base_addr, SharedPtr<CodeSet>* out_codeset) { if (!file.IsOpen()) return ERROR_FILE; @@ -116,15 +122,13 @@ static THREEDSX_Error Load3DSXFile(FileUtil::IOFile& file, u32 base_addr) loadinfo.seg_sizes[1] = (hdr.rodata_seg_size + 0xFFF) &~0xFFF; loadinfo.seg_sizes[2] = (hdr.data_seg_size + 0xFFF) &~0xFFF; u32 offsets[2] = { loadinfo.seg_sizes[0], loadinfo.seg_sizes[0] + loadinfo.seg_sizes[1] }; - u32 data_load_size = (hdr.data_seg_size - hdr.bss_size + 0xFFF) &~0xFFF; - u32 bss_load_size = loadinfo.seg_sizes[2] - data_load_size; - u32 n_reloc_tables = hdr.reloc_hdr_size / 4; - std::vector<u8> all_mem(loadinfo.seg_sizes[0] + loadinfo.seg_sizes[1] + loadinfo.seg_sizes[2] + 3 * n_reloc_tables); + u32 n_reloc_tables = hdr.reloc_hdr_size / sizeof(u32); + std::vector<u8> program_image(loadinfo.seg_sizes[0] + loadinfo.seg_sizes[1] + loadinfo.seg_sizes[2]); loadinfo.seg_addrs[0] = base_addr; loadinfo.seg_addrs[1] = loadinfo.seg_addrs[0] + loadinfo.seg_sizes[0]; loadinfo.seg_addrs[2] = loadinfo.seg_addrs[1] + loadinfo.seg_sizes[1]; - loadinfo.seg_ptrs[0] = &all_mem[0]; + loadinfo.seg_ptrs[0] = program_image.data(); loadinfo.seg_ptrs[1] = loadinfo.seg_ptrs[0] + loadinfo.seg_sizes[0]; loadinfo.seg_ptrs[2] = loadinfo.seg_ptrs[1] + loadinfo.seg_sizes[1]; @@ -132,10 +136,9 @@ static THREEDSX_Error Load3DSXFile(FileUtil::IOFile& file, u32 base_addr) file.Seek(hdr.header_size, SEEK_SET); // Read the relocation headers - u32* relocs = (u32*)(loadinfo.seg_ptrs[2] + hdr.data_seg_size); - - for (unsigned current_segment : {0, 1, 2}) { - size_t size = n_reloc_tables * 4; + std::vector<u32> relocs(n_reloc_tables * NUM_SEGMENTS); + for (unsigned int current_segment = 0; current_segment < NUM_SEGMENTS; ++current_segment) { + size_t size = n_reloc_tables * sizeof(u32); if (file.ReadBytes(&relocs[current_segment * n_reloc_tables], size) != size) return ERROR_READ; } @@ -152,7 +155,7 @@ static THREEDSX_Error Load3DSXFile(FileUtil::IOFile& file, u32 base_addr) memset((char*)loadinfo.seg_ptrs[2] + hdr.data_seg_size - hdr.bss_size, 0, hdr.bss_size); // Relocate the segments - for (unsigned current_segment : {0, 1, 2}) { + for (unsigned int current_segment = 0; current_segment < NUM_SEGMENTS; ++current_segment) { for (unsigned current_segment_reloc_table = 0; current_segment_reloc_table < n_reloc_tables; current_segment_reloc_table++) { u32 n_relocs = relocs[current_segment * n_reloc_tables + current_segment_reloc_table]; if (current_segment_reloc_table >= 2) { @@ -160,7 +163,7 @@ static THREEDSX_Error Load3DSXFile(FileUtil::IOFile& file, u32 base_addr) file.Seek(n_relocs*sizeof(THREEDSX_Reloc), SEEK_CUR); continue; } - static THREEDSX_Reloc reloc_table[RELOCBUFSIZE]; + THREEDSX_Reloc reloc_table[RELOCBUFSIZE]; u32* pos = (u32*)loadinfo.seg_ptrs[current_segment]; const u32* end_pos = pos + (loadinfo.seg_sizes[current_segment] / 4); @@ -179,7 +182,7 @@ static THREEDSX_Error Load3DSXFile(FileUtil::IOFile& file, u32 base_addr) pos += table.skip; s32 num_patches = table.patch; while (0 < num_patches && pos < end_pos) { - u32 in_addr = (char*)pos - (char*)&all_mem[0]; + u32 in_addr = (u8*)pos - program_image.data(); u32 addr = TranslateAddr(*pos, &loadinfo, offsets); LOG_TRACE(Loader, "Patching %08X <-- rel(%08X,%d) (%08X)\n", base_addr + in_addr, addr, current_segment_reloc_table, *pos); @@ -188,7 +191,7 @@ static THREEDSX_Error Load3DSXFile(FileUtil::IOFile& file, u32 base_addr) *pos = (addr); break; case 1: - *pos = (addr - in_addr); + *pos = static_cast<u32>(addr - in_addr); break; default: break; //this should never happen @@ -201,14 +204,29 @@ static THREEDSX_Error Load3DSXFile(FileUtil::IOFile& file, u32 base_addr) } } - // Write the data - memcpy(Memory::GetPointer(base_addr), &all_mem[0], loadinfo.seg_sizes[0] + loadinfo.seg_sizes[1] + loadinfo.seg_sizes[2]); + // Create the CodeSet + SharedPtr<CodeSet> code_set = CodeSet::Create("", 0); + + code_set->code.offset = loadinfo.seg_ptrs[0] - program_image.data(); + code_set->code.addr = loadinfo.seg_addrs[0]; + code_set->code.size = loadinfo.seg_sizes[0]; + + code_set->rodata.offset = loadinfo.seg_ptrs[1] - program_image.data(); + code_set->rodata.addr = loadinfo.seg_addrs[1]; + code_set->rodata.size = loadinfo.seg_sizes[1]; - LOG_DEBUG(Loader, "CODE: %u pages\n", loadinfo.seg_sizes[0] / 0x1000); - LOG_DEBUG(Loader, "RODATA: %u pages\n", loadinfo.seg_sizes[1] / 0x1000); - LOG_DEBUG(Loader, "DATA: %u pages\n", data_load_size / 0x1000); - LOG_DEBUG(Loader, "BSS: %u pages\n", bss_load_size / 0x1000); + code_set->data.offset = loadinfo.seg_ptrs[2] - program_image.data(); + code_set->data.addr = loadinfo.seg_addrs[2]; + code_set->data.size = loadinfo.seg_sizes[2]; + code_set->entrypoint = code_set->code.addr; + code_set->memory = std::make_shared<std::vector<u8>>(std::move(program_image)); + + LOG_DEBUG(Loader, "code size: 0x%X", loadinfo.seg_sizes[0]); + LOG_DEBUG(Loader, "rodata size: 0x%X", loadinfo.seg_sizes[1]); + LOG_DEBUG(Loader, "data size: 0x%X (including 0x%X of bss)", loadinfo.seg_sizes[2], hdr.bss_size); + + *out_codeset = code_set; return ERROR_NONE; } @@ -228,19 +246,22 @@ ResultStatus AppLoader_THREEDSX::Load() { if (is_loaded) return ResultStatus::ErrorAlreadyLoaded; - if (!file->IsOpen()) + if (!file.IsOpen()) + return ResultStatus::Error; + + SharedPtr<CodeSet> codeset; + if (Load3DSXFile(file, Memory::PROCESS_IMAGE_VADDR, &codeset) != ERROR_NONE) return ResultStatus::Error; + codeset->name = filename; - Kernel::g_current_process = Kernel::Process::Create(filename, 0); + Kernel::g_current_process = Kernel::Process::Create(std::move(codeset)); Kernel::g_current_process->svc_access_mask.set(); Kernel::g_current_process->address_mappings = default_address_mappings; // Attach the default resource limit (APPLICATION) to the process Kernel::g_current_process->resource_limit = Kernel::ResourceLimit::GetForCategory(Kernel::ResourceLimitCategory::APPLICATION); - Load3DSXFile(*file, Memory::PROCESS_IMAGE_VADDR); - - Kernel::g_current_process->Run(Memory::PROCESS_IMAGE_VADDR, 48, Kernel::DEFAULT_STACK_SIZE); + Kernel::g_current_process->Run(48, Kernel::DEFAULT_STACK_SIZE); is_loaded = true; return ResultStatus::Success; |