1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <string>
#include "common/logging/log.h"
#include "common/make_unique.h"
#include "core/file_sys/archive_romfs.h"
#include "core/hle/kernel/process.h"
#include "core/hle/service/fs/archive.h"
#include "core/loader/3dsx.h"
#include "core/loader/elf.h"
#include "core/loader/ncch.h"
#include "core/mem_map.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
namespace Loader {
const std::initializer_list<Kernel::StaticAddressMapping> default_address_mappings = {
{ 0x1FF50000, 0x8000, true }, // part of DSP RAM
{ 0x1FF70000, 0x8000, true }, // part of DSP RAM
{ 0x1F000000, 0x600000, false }, // entire VRAM
};
/**
* Identifies the type of a bootable file
* @param file open file
* @return FileType of file
*/
static FileType IdentifyFile(FileUtil::IOFile& file) {
FileType type;
#define CHECK_TYPE(loader) \
type = AppLoader_##loader::IdentifyType(file); \
if (FileType::Error != type) \
return type;
CHECK_TYPE(THREEDSX)
CHECK_TYPE(ELF)
CHECK_TYPE(NCCH)
#undef CHECK_TYPE
return FileType::Unknown;
}
/**
* Guess the type of a bootable file from its extension
* @param extension String extension of bootable file
* @return FileType of file
*/
static FileType GuessFromExtension(const std::string& extension_) {
std::string extension = Common::ToLower(extension_);
if (extension == ".elf")
return FileType::ELF;
else if (extension == ".axf")
return FileType::ELF;
else if (extension == ".cxi")
return FileType::CXI;
else if (extension == ".cci")
return FileType::CCI;
else if (extension == ".bin")
return FileType::BIN;
else if (extension == ".3ds")
return FileType::CCI;
else if (extension == ".3dsx")
return FileType::THREEDSX;
return FileType::Unknown;
}
static const char* GetFileTypeString(FileType type) {
switch (type) {
case FileType::CCI:
return "NCSD";
case FileType::CXI:
return "NCCH";
case FileType::ELF:
return "ELF";
case FileType::THREEDSX:
return "3DSX";
case FileType::BIN:
return "raw";
case FileType::Error:
case FileType::Unknown:
break;
}
return "unknown";
}
ResultStatus LoadFile(const std::string& filename) {
std::unique_ptr<FileUtil::IOFile> file(new FileUtil::IOFile(filename, "rb"));
if (!file->IsOpen()) {
LOG_ERROR(Loader, "Failed to load file %s", filename.c_str());
return ResultStatus::Error;
}
std::string filename_filename, filename_extension;
Common::SplitPath(filename, nullptr, &filename_filename, &filename_extension);
FileType type = IdentifyFile(*file);
FileType filename_type = GuessFromExtension(filename_extension);
if (type != filename_type) {
LOG_WARNING(Loader, "File %s has a different type than its extension.", filename.c_str());
if (FileType::Unknown == type)
type = filename_type;
}
LOG_INFO(Loader, "Loading file %s as %s...", filename.c_str(), GetFileTypeString(type));
switch (type) {
//3DSX file format...
case FileType::THREEDSX:
return AppLoader_THREEDSX(std::move(file), filename_filename).Load();
// Standard ELF file format...
case FileType::ELF:
return AppLoader_ELF(std::move(file), filename_filename).Load();
// NCCH/NCSD container formats...
case FileType::CXI:
case FileType::CCI:
{
AppLoader_NCCH app_loader(std::move(file));
// Load application and RomFS
if (ResultStatus::Success == app_loader.Load()) {
Service::FS::RegisterArchiveType(Common::make_unique<FileSys::ArchiveFactory_RomFS>(app_loader), Service::FS::ArchiveIdCode::RomFS);
return ResultStatus::Success;
}
break;
}
// Raw BIN file format...
case FileType::BIN:
{
Kernel::g_current_process = Kernel::Process::Create(filename_filename, 0);
Kernel::g_current_process->svc_access_mask.set();
Kernel::g_current_process->static_address_mappings = default_address_mappings;
size_t size = (size_t)file->GetSize();
if (file->ReadBytes(Memory::GetPointer(Memory::EXEFS_CODE_VADDR), size) != size)
return ResultStatus::Error;
Kernel::g_current_process->Run(Memory::EXEFS_CODE_VADDR, 0x30, Kernel::DEFAULT_STACK_SIZE);
return ResultStatus::Success;
}
// Error occurred durring IdentifyFile...
case FileType::Error:
// IdentifyFile could know identify file type...
case FileType::Unknown:
{
LOG_CRITICAL(Loader, "File %s is of unknown type.", filename.c_str());
return ResultStatus::ErrorInvalidFormat;
}
}
return ResultStatus::Error;
}
} // namespace Loader
|
