mirror of
https://github.com/fail0verflow/mini.git
synced 2024-11-16 08:29:25 +01:00
90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
#include "types.h"
|
|
#include "powerpc.h"
|
|
#include "hollywood.h"
|
|
#include "utils.h"
|
|
#include "start.h"
|
|
#include "gecko.h"
|
|
#include "ff.h"
|
|
#include "powerpc_elf.h"
|
|
#include "elf.h"
|
|
#include "string.h"
|
|
|
|
#define PHDR_MAX 10
|
|
|
|
Elf32_Ehdr elfhdr;
|
|
Elf32_Phdr phdrs[PHDR_MAX];
|
|
|
|
int powerpc_load_file(const char *path)
|
|
{
|
|
FIL fd;
|
|
u32 read;
|
|
FRESULT fres;
|
|
|
|
fres = f_open(&fd, path, FA_READ);
|
|
if(fres != FR_OK)
|
|
return -fres;
|
|
|
|
fres = f_read(&fd, &elfhdr, sizeof(elfhdr), &read);
|
|
|
|
if(fres != FR_OK)
|
|
return -fres;
|
|
if(read != sizeof(elfhdr))
|
|
return -100;
|
|
|
|
if(memcmp("\x7F" "ELF\x01\x02\x01\x00\x00",elfhdr.e_ident,9)) {
|
|
gecko_printf("Invalid ELF header! 0x%02x 0x%02x 0x%02x 0x%02x\n",elfhdr.e_ident[0], elfhdr.e_ident[1], elfhdr.e_ident[2], elfhdr.e_ident[3]);
|
|
return -101;
|
|
}
|
|
|
|
if(elfhdr.e_phoff == 0 || elfhdr.e_phnum == 0) {
|
|
gecko_puts("ELF has no program headers!\n");
|
|
return -102;
|
|
}
|
|
if(elfhdr.e_phnum > PHDR_MAX) {
|
|
gecko_printf("ELF has too many (%d) program headers!\n", elfhdr.e_phnum);
|
|
return -102;
|
|
}
|
|
|
|
fres = f_lseek(&fd, elfhdr.e_phoff);
|
|
if(fres != FR_OK)
|
|
return -fres;
|
|
|
|
fres = f_read(&fd, phdrs, sizeof(phdrs[0])*elfhdr.e_phnum, &read);
|
|
if(fres != FR_OK)
|
|
return -fres;
|
|
if(read != sizeof(phdrs[0])*elfhdr.e_phnum)
|
|
return -103;
|
|
|
|
int count = elfhdr.e_phnum;
|
|
Elf32_Phdr *phdr = phdrs;
|
|
|
|
powerpc_hang();
|
|
|
|
while(count--)
|
|
{
|
|
if(phdr->p_type != PT_LOAD) {
|
|
gecko_printf("Skipping PHDR of type %d\n",phdr->p_type);
|
|
} else {
|
|
void *dst = phdr->p_paddr;
|
|
dst = (void*)((u32)dst & ~0xC0000000);
|
|
|
|
gecko_printf("LOAD 0x%x -> %p [0x%x]\n", phdr->p_offset, phdr->p_paddr, phdr->p_filesz);
|
|
fres = f_lseek(&fd, phdr->p_offset);
|
|
if(fres != FR_OK)
|
|
return -fres;
|
|
fres = f_read(&fd, dst, phdr->p_filesz, &read);
|
|
if(fres != FR_OK)
|
|
return -fres;
|
|
if(read != phdr->p_filesz)
|
|
return -104;
|
|
}
|
|
phdr++;
|
|
}
|
|
gecko_puts("ELF load done, booting PPC...\n");
|
|
powerpc_upload_stub(NULL,0);
|
|
powerpc_reset();
|
|
gecko_puts("PPC booted!\n");
|
|
|
|
return 0;
|
|
}
|