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*Made forwarder Preloader compatible thanks to SpaceJump (only for DOLs though)

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dimok321 2009-06-13 22:26:43 +00:00
parent 6c7e7a2a03
commit 70d8b4f4a4
2 changed files with 75 additions and 43 deletions
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2
Makefile
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@ -31,8 +31,8 @@ CXXFLAGS = $(CFLAGS)
#--------------------------------------------------------------------------------- #---------------------------------------------------------------------------------
# move loader to another location - THANKS CREDIAR - 0x81330000 for HBC # move loader to another location - THANKS CREDIAR - 0x81330000 for HBC
#--------------------------------------------------------------------------------- #---------------------------------------------------------------------------------
LDFLAGS = -g $(MACHDEP) -Wl,-Map,$(notdir $@).map -Wl,--section-start,.init=0x81230000
#LDFLAGS = -g $(MACHDEP) -Wl,-Map,$(notdir $@).map #LDFLAGS = -g $(MACHDEP) -Wl,-Map,$(notdir $@).map
LDFLAGS = -g $(MACHDEP) -Wl,-Map,$(notdir $@).map -Wl,--section-start,.init=0x81000000
#LDFLAGS = -g $(MACHDEP) -Wl,-Map,$(notdir $@).map -Wl,--section-start,.init=0x80003f00 #LDFLAGS = -g $(MACHDEP) -Wl,-Map,$(notdir $@).map -Wl,--section-start,.init=0x80003f00
#--------------------------------------------------------------------------------- #---------------------------------------------------------------------------------

76
source/dolloader.c
View File

@ -1,42 +1,74 @@
#include <malloc.h> // this code was contributed by shagkur of the devkitpro team, thx!
#include <stdio.h> #include <stdio.h>
#include <stdlib.h>
#include <ogc/machine/processor.h>
#include <gccore.h>
#include <dirent.h>
#include <string.h> #include <string.h>
#include "dolloader.h" #include <gccore.h>
#include <ogcsys.h>
u32 load_dol_image (void *dolstart, struct __argv *argv) { 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_image (void *dolstart) {
u32 i; u32 i;
dolheader *dolfile; dolheader *dolfile;
if (dolstart) { if (dolstart) {
dolfile = (dolheader *) dolstart; dolfile = (dolheader *) dolstart;
for (i = 0; i < 7; i++) { for (i = 0; i < 7; i++) {
if ((!dolfile->text_size[i]) || (dolfile->text_start[i] < 0x100)) continue; if ((!dolfile->text_size[i]) ||
VIDEO_WaitVSync(); (dolfile->text_start[i] < 0x100))
ICInvalidateRange ((void *) dolfile->text_start[i],dolfile->text_size[i]); continue;
memmove ((void *) dolfile->text_start[i],dolstart+dolfile->text_pos[i],dolfile->text_size[i]);
/*printf ("loading text section %u @ 0x%08x "
"(0x%08x bytes)\n",
i, dolfile->text_start[i],
dolfile->text_size[i]);*/
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++) { for(i = 0; i < 11; i++) {
if ((!dolfile->data_size[i]) || (dolfile->data_start[i] < 0x100)) continue; if ((!dolfile->data_size[i]) ||
VIDEO_WaitVSync(); (dolfile->data_start[i] < 0x100))
memmove ((void *) dolfile->data_start[i],dolstart+dolfile->data_pos[i],dolfile->data_size[i]); continue;
DCFlushRangeNoSync ((void *) dolfile->data_start[i],dolfile->data_size[i]);
/*printf ("loading data section %u @ 0x%08x "
"(0x%08x bytes)\n",
i, dolfile->data_start[i],
dolfile->data_size[i]);*/
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]);
} }
//printf ("clearing bss\n");
VIDEO_WaitVSync();
memset ((void *) dolfile->bss_start, 0, dolfile->bss_size); memset ((void *) dolfile->bss_start, 0, dolfile->bss_size);
DCFlushRange((void *) dolfile->bss_start, dolfile->bss_size); DCFlushRange((void *) dolfile->bss_start, dolfile->bss_size);
if (argv && argv->argvMagic == ARGV_MAGIC) { return dolfile->entry_point;
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;
return 0;
} }