mirror of
https://github.com/wiiu-env/HBLInstallerWrapper.git
synced 2024-09-28 15:08:35 +02:00
70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
|
#include <string.h>
|
||
|
|
#include <coreinit/title.h>
|
||
|
|
#include <sysapp/title.h>
|
||
|
|
#include <sysapp/launch.h>
|
||
|
|
#include <coreinit/ios.h>
|
||
|
|
#include <coreinit/cache.h>
|
||
|
|
#include "../homebrew_launcher_installer/src/elf_abi.h"
|
||
|
|
#include "payload_elf.h"
|
||
|
|
|
||
|
|
static unsigned int load_elf_image (const uint8_t* elfstart) {
|
||
|
|
Elf32_Ehdr *ehdr;
|
||
|
|
Elf32_Phdr *phdrs;
|
||
|
|
unsigned char *image;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
ehdr = (Elf32_Ehdr *) elfstart;
|
||
|
|
|
||
|
|
if(ehdr->e_phoff == 0 || ehdr->e_phnum == 0)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
if(ehdr->e_phentsize != sizeof(Elf32_Phdr))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
phdrs = (Elf32_Phdr*)(elfstart + ehdr->e_phoff);
|
||
|
|
|
||
|
|
for(i = 0; i < ehdr->e_phnum; i++) {
|
||
|
|
if(phdrs[i].p_type != PT_LOAD)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
if(phdrs[i].p_filesz > phdrs[i].p_memsz)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
if(!phdrs[i].p_filesz)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
unsigned int p_paddr = phdrs[i].p_paddr;
|
||
|
|
image = (unsigned char *) (elfstart + phdrs[i].p_offset);
|
||
|
|
|
||
|
|
memcpy ((void *) p_paddr, image, phdrs[i].p_filesz);
|
||
|
|
DCFlushRange((void*)p_paddr, phdrs[i].p_filesz);
|
||
|
|
|
||
|
|
if(phdrs[i].p_flags & PF_X)
|
||
|
|
ICInvalidateRange ((void *) p_paddr, phdrs[i].p_memsz);
|
||
|
|
}
|
||
|
|
|
||
|
|
//! clear BSS
|
||
|
|
Elf32_Shdr *shdr = (Elf32_Shdr *) (elfstart + ehdr->e_shoff);
|
||
|
|
for(i = 0; i < ehdr->e_shnum; i++) {
|
||
|
|
const char *section_name = ((const char*)elfstart) + shdr[ehdr->e_shstrndx].sh_offset + shdr[i].sh_name;
|
||
|
|
if(section_name[0] == '.' && section_name[1] == 'b' && section_name[2] == 's' && section_name[3] == 's') {
|
||
|
|
memset((void*)shdr[i].sh_addr, 0, shdr[i].sh_size);
|
||
|
|
DCFlushRange((void*)shdr[i].sh_addr, shdr[i].sh_size);
|
||
|
|
} else if(section_name[0] == '.' && section_name[1] == 's' && section_name[2] == 'b' && section_name[3] == 's' && section_name[4] == 's') {
|
||
|
|
memset((void*)shdr[i].sh_addr, 0, shdr[i].sh_size);
|
||
|
|
DCFlushRange((void*)shdr[i].sh_addr, shdr[i].sh_size);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return ehdr->e_entry;
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(int argc, char **argv) {
|
||
|
|
uint32_t res = load_elf_image(payload_elf);
|
||
|
|
if(res != 0) {
|
||
|
|
((int (*)(int, char **)) res)(0, nullptr);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|