usbloadergx/source/homebrewboot/dolloader.c

56 lines
1.5 KiB
C
Raw Normal View History

#include <malloc.h>
#include <stdio.h>
#include <stdlib.h>
#include <ogc/machine/processor.h>
#include <gccore.h>
#include <dirent.h>
#include <string.h>
#include "dolloader.h"
typedef struct _dolheader {
u32 text_pos[7];
u32 data_pos[11];
u32 text_start[7];
u32 data_start[11];
u32 text_size[7];
u32 data_size[11];
u32 bss_start;
u32 bss_size;
u32 entry_point;
} dolheader;
u32 load_dol(void *dolstart, struct __argv *argv) {
u32 i;
dolheader *dolfile;
if (dolstart) {
dolfile = (dolheader *) dolstart;
for (i = 0; i < 7; i++) {
if ((!dolfile->text_size[i]) || (dolfile->text_start[i] < 0x100)) continue;
VIDEO_WaitVSync();
ICInvalidateRange ((void *) dolfile->text_start[i],dolfile->text_size[i]);
memmove ((void *) dolfile->text_start[i],dolstart+dolfile->text_pos[i],dolfile->text_size[i]);
}
for(i = 0; i < 11; i++) {
if ((!dolfile->data_size[i]) || (dolfile->data_start[i] < 0x100)) continue;
VIDEO_WaitVSync();
memmove ((void *) dolfile->data_start[i],dolstart+dolfile->data_pos[i],dolfile->data_size[i]);
DCFlushRangeNoSync ((void *) dolfile->data_start[i],dolfile->data_size[i]);
}
memset ((void *) dolfile->bss_start, 0, dolfile->bss_size);
DCFlushRange((void *) dolfile->bss_start, dolfile->bss_size);
if (argv && argv->argvMagic == ARGV_MAGIC) {
void *new_argv = (void *)(dolfile->entry_point + 8);
memmove(new_argv, argv, sizeof(*argv));
DCFlushRange(new_argv, sizeof(*argv));
}
return dolfile->entry_point;
}
return 0;
}