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-rw-r--r--src/core/loader/ncch.cpp62
1 files changed, 35 insertions, 27 deletions
diff --git a/src/core/loader/ncch.cpp b/src/core/loader/ncch.cpp
index fca091ff9..5b996d671 100644
--- a/src/core/loader/ncch.cpp
+++ b/src/core/loader/ncch.cpp
@@ -22,8 +22,8 @@
22 22
23namespace Loader { 23namespace Loader {
24 24
25static const int kMaxSections = 8; ///< Maximum number of sections (files) in an ExeFs 25static const int kMaxSections = 8; ///< Maximum number of sections (files) in an ExeFs
26static const int kBlockSize = 0x200; ///< Size of ExeFS blocks (in bytes) 26static const int kBlockSize = 0x200; ///< Size of ExeFS blocks (in bytes)
27 27
28/** 28/**
29 * Get the decompressed size of an LZSS compressed ExeFS file 29 * Get the decompressed size of an LZSS compressed ExeFS file
@@ -44,7 +44,8 @@ static u32 LZSS_GetDecompressedSize(const u8* buffer, u32 size) {
44 * @param decompressed_size Size of decompressed buffer 44 * @param decompressed_size Size of decompressed buffer
45 * @return True on success, otherwise false 45 * @return True on success, otherwise false
46 */ 46 */
47static bool LZSS_Decompress(const u8* compressed, u32 compressed_size, u8* decompressed, u32 decompressed_size) { 47static bool LZSS_Decompress(const u8* compressed, u32 compressed_size, u8* decompressed,
48 u32 decompressed_size) {
48 const u8* footer = compressed + compressed_size - 8; 49 const u8* footer = compressed + compressed_size - 8;
49 u32 buffer_top_and_bottom = *reinterpret_cast<const u32*>(footer); 50 u32 buffer_top_and_bottom = *reinterpret_cast<const u32*>(footer);
50 u32 out = decompressed_size; 51 u32 out = decompressed_size;
@@ -55,7 +56,7 @@ static bool LZSS_Decompress(const u8* compressed, u32 compressed_size, u8* decom
55 memcpy(decompressed, compressed, compressed_size); 56 memcpy(decompressed, compressed, compressed_size);
56 57
57 while (index > stop_index) { 58 while (index > stop_index) {
58 u8 control = compressed[--index]; 59 u8 control = compressed[--index];
59 60
60 for (unsigned i = 0; i < 8; i++) { 61 for (unsigned i = 0; i < 8; i++) {
61 if (index <= stop_index) 62 if (index <= stop_index)
@@ -128,7 +129,7 @@ ResultStatus AppLoader_NCCH::LoadExec() {
128 std::vector<u8> code; 129 std::vector<u8> code;
129 if (ResultStatus::Success == ReadCode(code)) { 130 if (ResultStatus::Success == ReadCode(code)) {
130 std::string process_name = Common::StringFromFixedZeroTerminatedBuffer( 131 std::string process_name = Common::StringFromFixedZeroTerminatedBuffer(
131 (const char*)exheader_header.codeset_info.name, 8); 132 (const char*)exheader_header.codeset_info.name, 8);
132 133
133 SharedPtr<CodeSet> codeset = CodeSet::Create(process_name, ncch_header.program_id); 134 SharedPtr<CodeSet> codeset = CodeSet::Create(process_name, ncch_header.program_id);
134 135
@@ -147,7 +148,8 @@ ResultStatus AppLoader_NCCH::LoadExec() {
147 148
148 codeset->data.offset = codeset->rodata.offset + codeset->rodata.size; 149 codeset->data.offset = codeset->rodata.offset + codeset->rodata.size;
149 codeset->data.addr = exheader_header.codeset_info.data.address; 150 codeset->data.addr = exheader_header.codeset_info.data.address;
150 codeset->data.size = exheader_header.codeset_info.data.num_max_pages * Memory::PAGE_SIZE + bss_page_size; 151 codeset->data.size =
152 exheader_header.codeset_info.data.num_max_pages * Memory::PAGE_SIZE + bss_page_size;
151 153
152 codeset->entrypoint = codeset->code.addr; 154 codeset->entrypoint = codeset->code.addr;
153 codeset->memory = std::make_shared<std::vector<u8>>(std::move(code)); 155 codeset->memory = std::make_shared<std::vector<u8>>(std::move(code));
@@ -155,15 +157,18 @@ ResultStatus AppLoader_NCCH::LoadExec() {
155 Kernel::g_current_process = Kernel::Process::Create(std::move(codeset)); 157 Kernel::g_current_process = Kernel::Process::Create(std::move(codeset));
156 158
157 // Attach a resource limit to the process based on the resource limit category 159 // Attach a resource limit to the process based on the resource limit category
158 Kernel::g_current_process->resource_limit = Kernel::ResourceLimit::GetForCategory( 160 Kernel::g_current_process->resource_limit =
159 static_cast<Kernel::ResourceLimitCategory>(exheader_header.arm11_system_local_caps.resource_limit_category)); 161 Kernel::ResourceLimit::GetForCategory(static_cast<Kernel::ResourceLimitCategory>(
162 exheader_header.arm11_system_local_caps.resource_limit_category));
160 163
161 // Set the default CPU core for this process 164 // Set the default CPU core for this process
162 Kernel::g_current_process->ideal_processor = exheader_header.arm11_system_local_caps.ideal_processor; 165 Kernel::g_current_process->ideal_processor =
166 exheader_header.arm11_system_local_caps.ideal_processor;
163 167
164 // Copy data while converting endianess 168 // Copy data while converting endianess
165 std::array<u32, ARRAY_SIZE(exheader_header.arm11_kernel_caps.descriptors)> kernel_caps; 169 std::array<u32, ARRAY_SIZE(exheader_header.arm11_kernel_caps.descriptors)> kernel_caps;
166 std::copy_n(exheader_header.arm11_kernel_caps.descriptors, kernel_caps.size(), begin(kernel_caps)); 170 std::copy_n(exheader_header.arm11_kernel_caps.descriptors, kernel_caps.size(),
171 begin(kernel_caps));
167 Kernel::g_current_process->ParseKernelCaps(kernel_caps.data(), kernel_caps.size()); 172 Kernel::g_current_process->ParseKernelCaps(kernel_caps.data(), kernel_caps.size());
168 173
169 s32 priority = exheader_header.arm11_system_local_caps.priority; 174 s32 priority = exheader_header.arm11_system_local_caps.priority;
@@ -192,7 +197,8 @@ ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector<u8>&
192 LOG_DEBUG(Loader, "%d - offset: 0x%08X, size: 0x%08X, name: %s", section_number, 197 LOG_DEBUG(Loader, "%d - offset: 0x%08X, size: 0x%08X, name: %s", section_number,
193 section.offset, section.size, section.name); 198 section.offset, section.size, section.name);
194 199
195 s64 section_offset = (section.offset + exefs_offset + sizeof(ExeFs_Header) + ncch_offset); 200 s64 section_offset =
201 (section.offset + exefs_offset + sizeof(ExeFs_Header) + ncch_offset);
196 file.Seek(section_offset, SEEK_SET); 202 file.Seek(section_offset, SEEK_SET);
197 203
198 if (strcmp(section.name, ".code") == 0 && is_compressed) { 204 if (strcmp(section.name, ".code") == 0 && is_compressed) {
@@ -254,25 +260,25 @@ ResultStatus AppLoader_NCCH::LoadExeFS() {
254 if (file.ReadBytes(&exheader_header, sizeof(ExHeader_Header)) != sizeof(ExHeader_Header)) 260 if (file.ReadBytes(&exheader_header, sizeof(ExHeader_Header)) != sizeof(ExHeader_Header))
255 return ResultStatus::Error; 261 return ResultStatus::Error;
256 262
257 is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1; 263 is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1;
258 entry_point = exheader_header.codeset_info.text.address; 264 entry_point = exheader_header.codeset_info.text.address;
259 code_size = exheader_header.codeset_info.text.code_size; 265 code_size = exheader_header.codeset_info.text.code_size;
260 stack_size = exheader_header.codeset_info.stack_size; 266 stack_size = exheader_header.codeset_info.stack_size;
261 bss_size = exheader_header.codeset_info.bss_size; 267 bss_size = exheader_header.codeset_info.bss_size;
262 core_version = exheader_header.arm11_system_local_caps.core_version; 268 core_version = exheader_header.arm11_system_local_caps.core_version;
263 priority = exheader_header.arm11_system_local_caps.priority; 269 priority = exheader_header.arm11_system_local_caps.priority;
264 resource_limit_category = exheader_header.arm11_system_local_caps.resource_limit_category; 270 resource_limit_category = exheader_header.arm11_system_local_caps.resource_limit_category;
265 271
266 LOG_INFO(Loader, "Name: %s" , exheader_header.codeset_info.name); 272 LOG_INFO(Loader, "Name: %s", exheader_header.codeset_info.name);
267 LOG_INFO(Loader, "Program ID: %016llX" , ncch_header.program_id); 273 LOG_INFO(Loader, "Program ID: %016llX", ncch_header.program_id);
268 LOG_DEBUG(Loader, "Code compressed: %s" , is_compressed ? "yes" : "no"); 274 LOG_DEBUG(Loader, "Code compressed: %s", is_compressed ? "yes" : "no");
269 LOG_DEBUG(Loader, "Entry point: 0x%08X", entry_point); 275 LOG_DEBUG(Loader, "Entry point: 0x%08X", entry_point);
270 LOG_DEBUG(Loader, "Code size: 0x%08X", code_size); 276 LOG_DEBUG(Loader, "Code size: 0x%08X", code_size);
271 LOG_DEBUG(Loader, "Stack size: 0x%08X", stack_size); 277 LOG_DEBUG(Loader, "Stack size: 0x%08X", stack_size);
272 LOG_DEBUG(Loader, "Bss size: 0x%08X", bss_size); 278 LOG_DEBUG(Loader, "Bss size: 0x%08X", bss_size);
273 LOG_DEBUG(Loader, "Core version: %d" , core_version); 279 LOG_DEBUG(Loader, "Core version: %d", core_version);
274 LOG_DEBUG(Loader, "Thread priority: 0x%X" , priority); 280 LOG_DEBUG(Loader, "Thread priority: 0x%X", priority);
275 LOG_DEBUG(Loader, "Resource limit category: %d" , resource_limit_category); 281 LOG_DEBUG(Loader, "Resource limit category: %d", resource_limit_category);
276 282
277 if (exheader_header.arm11_system_local_caps.program_id != ncch_header.program_id) { 283 if (exheader_header.arm11_system_local_caps.program_id != ncch_header.program_id) {
278 LOG_ERROR(Loader, "ExHeader Program ID mismatch: the ROM is probably encrypted."); 284 LOG_ERROR(Loader, "ExHeader Program ID mismatch: the ROM is probably encrypted.");
@@ -309,7 +315,8 @@ ResultStatus AppLoader_NCCH::Load() {
309 if (ResultStatus::Success != result) 315 if (ResultStatus::Success != result)
310 return result; 316 return result;
311 317
312 Service::FS::RegisterArchiveType(std::make_unique<FileSys::ArchiveFactory_RomFS>(*this), Service::FS::ArchiveIdCode::RomFS); 318 Service::FS::RegisterArchiveType(std::make_unique<FileSys::ArchiveFactory_RomFS>(*this),
319 Service::FS::ArchiveIdCode::RomFS);
313 return ResultStatus::Success; 320 return ResultStatus::Success;
314} 321}
315 322
@@ -329,7 +336,8 @@ ResultStatus AppLoader_NCCH::ReadLogo(std::vector<u8>& buffer) {
329 return LoadSectionExeFS("logo", buffer); 336 return LoadSectionExeFS("logo", buffer);
330} 337}
331 338
332ResultStatus AppLoader_NCCH::ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset, u64& size) { 339ResultStatus AppLoader_NCCH::ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset,
340 u64& size) {
333 if (!file.IsOpen()) 341 if (!file.IsOpen())
334 return ResultStatus::Error; 342 return ResultStatus::Error;
335 343
@@ -341,7 +349,7 @@ ResultStatus AppLoader_NCCH::ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_
341 LOG_DEBUG(Loader, "RomFS offset: 0x%08X", romfs_offset); 349 LOG_DEBUG(Loader, "RomFS offset: 0x%08X", romfs_offset);
342 LOG_DEBUG(Loader, "RomFS size: 0x%08X", romfs_size); 350 LOG_DEBUG(Loader, "RomFS size: 0x%08X", romfs_size);
343 351
344 if (file.GetSize () < romfs_offset + romfs_size) 352 if (file.GetSize() < romfs_offset + romfs_size)
345 return ResultStatus::Error; 353 return ResultStatus::Error;
346 354
347 // We reopen the file, to allow its position to be independent from file's 355 // We reopen the file, to allow its position to be independent from file's