mirror of
https://github.com/citra-mirror/citra.git
synced 2024-08-20 02:13:23 +02:00
Loader: Cleaned up and removed unused code, refactored ELF namespace.
This commit is contained in:
parent
1da361c7ab
commit
13bdaa6c60
@ -5,65 +5,17 @@
|
||||
#include <string>
|
||||
|
||||
#include "common/common.h"
|
||||
|
||||
#include "common/file_util.h"
|
||||
#include "common/symbols.h"
|
||||
|
||||
#include "core/mem_map.h"
|
||||
#include "core/loader/elf.h"
|
||||
#include "core/hle/kernel/kernel.h"
|
||||
|
||||
//void bswap(Elf32_Word &w) {w = Common::swap32(w);}
|
||||
//void bswap(Elf32_Half &w) {w = Common::swap16(w);}
|
||||
|
||||
#define bswap(w) w // Dirty bswap disable for now... 3DS is little endian, anyway
|
||||
|
||||
static void byteswapHeader(Elf32_Ehdr &ELF_H)
|
||||
{
|
||||
bswap(ELF_H.e_type);
|
||||
bswap(ELF_H.e_machine);
|
||||
bswap(ELF_H.e_ehsize);
|
||||
bswap(ELF_H.e_phentsize);
|
||||
bswap(ELF_H.e_phnum);
|
||||
bswap(ELF_H.e_shentsize);
|
||||
bswap(ELF_H.e_shnum);
|
||||
bswap(ELF_H.e_shstrndx);
|
||||
bswap(ELF_H.e_version);
|
||||
bswap(ELF_H.e_entry);
|
||||
bswap(ELF_H.e_phoff);
|
||||
bswap(ELF_H.e_shoff);
|
||||
bswap(ELF_H.e_flags);
|
||||
}
|
||||
|
||||
static void byteswapSegment(Elf32_Phdr &sec)
|
||||
{
|
||||
bswap(sec.p_align);
|
||||
bswap(sec.p_filesz);
|
||||
bswap(sec.p_flags);
|
||||
bswap(sec.p_memsz);
|
||||
bswap(sec.p_offset);
|
||||
bswap(sec.p_paddr);
|
||||
bswap(sec.p_vaddr);
|
||||
bswap(sec.p_type);
|
||||
}
|
||||
|
||||
static void byteswapSection(Elf32_Shdr &sec)
|
||||
{
|
||||
bswap(sec.sh_addr);
|
||||
bswap(sec.sh_addralign);
|
||||
bswap(sec.sh_entsize);
|
||||
bswap(sec.sh_flags);
|
||||
bswap(sec.sh_info);
|
||||
bswap(sec.sh_link);
|
||||
bswap(sec.sh_name);
|
||||
bswap(sec.sh_offset);
|
||||
bswap(sec.sh_size);
|
||||
bswap(sec.sh_type);
|
||||
}
|
||||
|
||||
ElfReader::ElfReader(void *ptr)
|
||||
{
|
||||
ElfReader::ElfReader(void *ptr) {
|
||||
base = (char*)ptr;
|
||||
base32 = (u32 *)ptr;
|
||||
header = (Elf32_Ehdr*)ptr;
|
||||
byteswapHeader(*header);
|
||||
|
||||
segments = (Elf32_Phdr *)(base + header->e_phoff);
|
||||
sections = (Elf32_Shdr *)(base + header->e_shoff);
|
||||
@ -73,8 +25,7 @@ ElfReader::ElfReader(void *ptr)
|
||||
LoadSymbols();
|
||||
}
|
||||
|
||||
const char *ElfReader::GetSectionName(int section) const
|
||||
{
|
||||
const char *ElfReader::GetSectionName(int section) const {
|
||||
if (sections[section].sh_type == SHT_NULL)
|
||||
return nullptr;
|
||||
|
||||
@ -87,8 +38,7 @@ const char *ElfReader::GetSectionName(int section) const
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
bool ElfReader::LoadInto(u32 vaddr)
|
||||
{
|
||||
bool ElfReader::LoadInto(u32 vaddr) {
|
||||
DEBUG_LOG(MASTER_LOG, "String section: %i", header->e_shstrndx);
|
||||
|
||||
// Should we relocate?
|
||||
@ -188,3 +138,48 @@ bool ElfReader::LoadSymbols()
|
||||
|
||||
return hasSymbols;
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||
// Loader namespace
|
||||
|
||||
namespace Loader {
|
||||
|
||||
/**
|
||||
* Loads an ELF file
|
||||
* @param filename String filename of ELF file
|
||||
* @param error_string Pointer to string to put error message if an error has occurred
|
||||
* @return True on success, otherwise false
|
||||
*/
|
||||
bool Load_ELF(std::string& filename, std::string* error_string) {
|
||||
std::string full_path = filename;
|
||||
std::string path, file, extension;
|
||||
SplitPath(ReplaceAll(full_path, "\\", "/"), &path, &file, &extension);
|
||||
#if EMU_PLATFORM == PLATFORM_WINDOWS
|
||||
path = ReplaceAll(path, "/", "\\");
|
||||
#endif
|
||||
File::IOFile f(filename, "rb");
|
||||
|
||||
if (f.IsOpen()) {
|
||||
u32 size = (u32)f.GetSize();
|
||||
u8* buffer = new u8[size];
|
||||
ElfReader* elf_reader = NULL;
|
||||
|
||||
f.ReadBytes(buffer, size);
|
||||
|
||||
elf_reader = new ElfReader(buffer);
|
||||
elf_reader->LoadInto(0x00100000);
|
||||
|
||||
Kernel::LoadExec(elf_reader->GetEntryPoint());
|
||||
|
||||
delete[] buffer;
|
||||
delete elf_reader;
|
||||
} else {
|
||||
*error_string = "Unable to open ELF file!";
|
||||
return false;
|
||||
}
|
||||
f.Close();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
} // namespace Loader
|
||||
|
@ -329,3 +329,18 @@ public:
|
||||
return bRelocate;
|
||||
}
|
||||
};
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||
// Loader namespace
|
||||
|
||||
namespace Loader {
|
||||
|
||||
/**
|
||||
* Loads an ELF file
|
||||
* @param filename String filename of ELF file
|
||||
* @param error_string Pointer to string to put error message if an error has occurred
|
||||
* @return True on success, otherwise false
|
||||
*/
|
||||
bool Load_ELF(std::string& filename, std::string* error_string);
|
||||
|
||||
} // namespace Loader
|
||||
|
@ -2,98 +2,14 @@
|
||||
// Licensed under GPLv2
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#include "common/common_types.h"
|
||||
#include "common/file_util.h"
|
||||
|
||||
#include "core/loader/loader.h"
|
||||
#include "core/loader/elf.h"
|
||||
#include "core/loader/ncch.h"
|
||||
#include "core/system.h"
|
||||
#include "core/core.h"
|
||||
#include "core/hle/kernel/kernel.h"
|
||||
#include "core/mem_map.h"
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
/// Loads a CTR ELF file
|
||||
bool Load_ELF(std::string &filename) {
|
||||
std::string full_path = filename;
|
||||
std::string path, file, extension;
|
||||
SplitPath(ReplaceAll(full_path, "\\", "/"), &path, &file, &extension);
|
||||
#if EMU_PLATFORM == PLATFORM_WINDOWS
|
||||
path = ReplaceAll(path, "/", "\\");
|
||||
#endif
|
||||
File::IOFile f(filename, "rb");
|
||||
|
||||
if (f.IsOpen()) {
|
||||
u64 size = f.GetSize();
|
||||
u8* buffer = new u8[size];
|
||||
ElfReader* elf_reader = NULL;
|
||||
|
||||
f.ReadBytes(buffer, size);
|
||||
|
||||
elf_reader = new ElfReader(buffer);
|
||||
elf_reader->LoadInto(0x00100000);
|
||||
|
||||
Kernel::LoadExec(elf_reader->GetEntryPoint());
|
||||
|
||||
delete[] buffer;
|
||||
delete elf_reader;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
f.Close();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/// Loads a CTR BIN file extracted from an ExeFS
|
||||
bool Load_BIN(std::string &filename) {
|
||||
std::string full_path = filename;
|
||||
std::string path, file, extension;
|
||||
SplitPath(ReplaceAll(full_path, "\\", "/"), &path, &file, &extension);
|
||||
#if EMU_PLATFORM == PLATFORM_WINDOWS
|
||||
path = ReplaceAll(path, "/", "\\");
|
||||
#endif
|
||||
File::IOFile f(filename, "rb");
|
||||
|
||||
if (f.IsOpen()) {
|
||||
u64 size = f.GetSize();
|
||||
u8* buffer = new u8[size];
|
||||
|
||||
f.ReadBytes(buffer, size);
|
||||
|
||||
u32 entry_point = 0x00100000; // Hardcoded, read from exheader
|
||||
|
||||
const u8 *src = buffer;
|
||||
u8 *dst = Memory::GetPointer(entry_point);
|
||||
u32 srcSize = size;
|
||||
u32 *s = (u32*)src;
|
||||
u32 *d = (u32*)dst;
|
||||
for (int j = 0; j < (int)(srcSize + 3) / 4; j++)
|
||||
{
|
||||
*d++ = (*s++);
|
||||
}
|
||||
|
||||
Kernel::LoadExec(entry_point);
|
||||
|
||||
delete[] buffer;
|
||||
}
|
||||
else {
|
||||
return false;
|
||||
}
|
||||
f.Close();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
namespace Loader {
|
||||
|
||||
bool IsBootableDirectory() {
|
||||
ERROR_LOG(TIME, "Unimplemented function!");
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Identifies the type of a bootable file
|
||||
* @param filename String filename of bootable file
|
||||
@ -107,15 +23,7 @@ FileType IdentifyFile(std::string &filename) {
|
||||
}
|
||||
std::string extension = filename.size() >= 5 ? filename.substr(filename.size() - 4) : "";
|
||||
|
||||
if (File::IsDirectory(filename)) {
|
||||
if (IsBootableDirectory()) {
|
||||
return FILETYPE_DIRECTORY_CXI;
|
||||
}
|
||||
else {
|
||||
return FILETYPE_NORMAL_DIRECTORY;
|
||||
}
|
||||
}
|
||||
else if (!strcasecmp(extension.c_str(), ".elf")) {
|
||||
if (!strcasecmp(extension.c_str(), ".elf")) {
|
||||
return FILETYPE_CTR_ELF; // TODO(bunnei): Do some filetype checking :p
|
||||
}
|
||||
else if (!strcasecmp(extension.c_str(), ".axf")) {
|
||||
@ -127,24 +35,6 @@ FileType IdentifyFile(std::string &filename) {
|
||||
else if (!strcasecmp(extension.c_str(), ".cci")) {
|
||||
return FILETYPE_CTR_CCI; // TODO(bunnei): Do some filetype checking :p
|
||||
}
|
||||
else if (!strcasecmp(extension.c_str(), ".bin")) {
|
||||
return FILETYPE_CTR_BIN;
|
||||
}
|
||||
else if (!strcasecmp(extension.c_str(), ".dat")) {
|
||||
return FILETYPE_LAUNCHER_DAT;
|
||||
}
|
||||
else if (!strcasecmp(extension.c_str(), ".zip")) {
|
||||
return FILETYPE_ARCHIVE_ZIP;
|
||||
}
|
||||
else if (!strcasecmp(extension.c_str(), ".rar")) {
|
||||
return FILETYPE_ARCHIVE_RAR;
|
||||
}
|
||||
else if (!strcasecmp(extension.c_str(), ".r00")) {
|
||||
return FILETYPE_ARCHIVE_RAR;
|
||||
}
|
||||
else if (!strcasecmp(extension.c_str(), ".r01")) {
|
||||
return FILETYPE_ARCHIVE_RAR;
|
||||
}
|
||||
return FILETYPE_UNKNOWN;
|
||||
}
|
||||
|
||||
@ -161,10 +51,7 @@ bool LoadFile(std::string &filename, std::string *error_string) {
|
||||
switch (IdentifyFile(filename)) {
|
||||
|
||||
case FILETYPE_CTR_ELF:
|
||||
return Load_ELF(filename);
|
||||
|
||||
case FILETYPE_CTR_BIN:
|
||||
return Load_BIN(filename);
|
||||
return Loader::Load_ELF(filename, error_string);
|
||||
|
||||
case FILETYPE_CTR_CXI:
|
||||
case FILETYPE_CTR_CCI:
|
||||
@ -175,29 +62,6 @@ bool LoadFile(std::string &filename, std::string *error_string) {
|
||||
*error_string = "Error reading file";
|
||||
break;
|
||||
|
||||
case FILETYPE_ARCHIVE_RAR:
|
||||
#ifdef WIN32
|
||||
*error_string = "RAR file detected (Require WINRAR)";
|
||||
#else
|
||||
*error_string = "RAR file detected (Require UnRAR)";
|
||||
#endif
|
||||
break;
|
||||
|
||||
case FILETYPE_ARCHIVE_ZIP:
|
||||
#ifdef WIN32
|
||||
*error_string = "ZIP file detected (Require WINRAR)";
|
||||
#else
|
||||
*error_string = "ZIP file detected (Require UnRAR)";
|
||||
#endif
|
||||
break;
|
||||
|
||||
case FILETYPE_NORMAL_DIRECTORY:
|
||||
ERROR_LOG(LOADER, "Just a directory.");
|
||||
*error_string = "Just a directory.";
|
||||
break;
|
||||
|
||||
case FILETYPE_UNKNOWN_BIN:
|
||||
case FILETYPE_UNKNOWN_ELF:
|
||||
case FILETYPE_UNKNOWN:
|
||||
default:
|
||||
ERROR_LOG(LOADER, "Failed to identify file");
|
||||
@ -207,4 +71,4 @@ bool LoadFile(std::string &filename, std::string *error_string) {
|
||||
return false;
|
||||
}
|
||||
|
||||
} // namespace
|
||||
} // namespace Loader
|
||||
|
@ -7,6 +7,7 @@
|
||||
#include "common/common.h"
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||
// Loader namespace
|
||||
|
||||
namespace Loader {
|
||||
|
||||
@ -19,23 +20,9 @@ enum FileType {
|
||||
FILETYPE_CTR_ELF,
|
||||
FILETYPE_CTR_BIN,
|
||||
|
||||
FILETYPE_LAUNCHER_DAT,
|
||||
|
||||
FILETYPE_DIRECTORY_CXI,
|
||||
|
||||
FILETYPE_UNKNOWN_BIN,
|
||||
FILETYPE_UNKNOWN_ELF,
|
||||
|
||||
FILETYPE_ARCHIVE_RAR,
|
||||
FILETYPE_ARCHIVE_ZIP,
|
||||
|
||||
FILETYPE_NORMAL_DIRECTORY,
|
||||
|
||||
FILETYPE_UNKNOWN
|
||||
};
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
/**
|
||||
* Identifies the type of a bootable file
|
||||
* @param filename String filename of bootable file
|
||||
|
Loading…
Reference in New Issue
Block a user