mirror of
https://github.com/libretro/RetroArch
synced 2024-07-08 12:15:49 +00:00
(GX) load new programs through app_booter instead of in MEM1
This commit is contained in:
Toad King
parent
3058363d49
commit
297723b836
1
.gitignore
vendored
1
.gitignore
vendored
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@ -21,3 +21,4 @@ Debug
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Release
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ipch
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*.user
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gx/app_booter/app_booter.bin
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@ -37,7 +37,9 @@ CFLAGS += -Wall -std=gnu99 $(MACHDEP) $(INCLUDE)
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LDFLAGS := $(MACHDEP) -Wl,-Map,$(notdir $(ELF_TARGET)).map,-wrap,malloc,-wrap,free,-wrap,memalign,-wrap,calloc,-wrap,realloc,-wrap,strdup,-wrap,strndup,-wrap,malloc_usable_size -T gx/ld/rvl.ld
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LIBS := -lfat -lretro_wii -lwiiuse -logc -lbte
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OBJ = console/griffin/griffin.o console/font.binobj console/rzlib/rzlib.o
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APP_BOOTER_DIR = gx/app_booter
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OBJ = console/griffin/griffin.o console/font.binobj console/rzlib/rzlib.o $(APP_BOOTER_DIR)/app_booter.binobj
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ifeq ($(HAVE_LOGGER), 1)
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CFLAGS += -DHAVE_LOGGER
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@ -76,6 +78,9 @@ $(ELF_TARGET): $(OBJ)
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%.binobj: %.bin
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$(LD) -r -b binary -o $@ $<
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$(APP_BOOTER_DIR)/app_booter.bin:
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$(MAKE) -C $(APP_BOOTER_DIR)
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pkg: all
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cp -r $(DOL_TARGET) gx/pkg/CORE.dol
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@ -83,6 +88,7 @@ clean:
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rm -f $(DOL_TARGET)
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rm -f $(ELF_TARGET)
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rm -f $(OBJ)
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$(MAKE) -C $(APP_BOOTER_DIR) clean
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.PHONY: clean
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@ -34,10 +34,12 @@ LIBDIRS := -L$(DEVKITPRO)/libogc/lib/wii -L.
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MACHDEP := -DGEKKO -DHW_RVL -mrvl -mcpu=750 -meabi -mhard-float
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CFLAGS += -Wall -std=gnu99 $(MACHDEP) $(INCLUDE)
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LDFLAGS := $(MACHDEP) -Wl,-Map,$(notdir $(ELF_TARGET)).map,--section-start,.init=0x81200000
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LDFLAGS := $(MACHDEP) -Wl,-Map,$(notdir $(ELF_TARGET)).map
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LIBS := -lfat -lretro_wii -lwiiuse -logc -lbte
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OBJ = gx/salamander/main.o console/rarch_console_exec.o console/rarch_console_libretro_mgmt.o file_path.o compat/compat.o conf/config_file.o console/exec/dol.o
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APP_BOOTER_DIR = gx/app_booter
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OBJ = gx/salamander/main.o console/rarch_console_exec.o console/rarch_console_libretro_mgmt.o file_path.o compat/compat.o conf/config_file.o $(APP_BOOTER_DIR)/app_booter.binobj
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ifeq ($(HAVE_LOGGER), 1)
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CFLAGS += -DHAVE_LOGGER
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@ -70,9 +72,12 @@ $(ELF_TARGET): $(OBJ)
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%.o: %.c
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$(CC) $(CFLAGS) -c -o $@ $<
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%.bmpobj: %.bmp
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%.binobj: %.bin
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$(LD) -r -b binary -o $@ $<
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$(APP_BOOTER_DIR)/app_booter.bin:
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$(MAKE) -C $(APP_BOOTER_DIR)
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pkg: all
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cp -r $(DOL_TARGET) gx/pkg/boot.dol
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@ -80,6 +85,7 @@ clean:
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rm -f $(DOL_TARGET)
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rm -f $(ELF_TARGET)
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rm -f $(OBJ)
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$(MAKE) -C $(APP_BOOTER_DIR) clean
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.PHONY: clean
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@ -1,89 +0,0 @@
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// this code was contributed by shagkur of the devkitpro team, thx!
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <gccore.h>
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#include <gctypes.h>
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#include <ogcsys.h>
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#include "../../retroarch_logger.h"
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typedef struct _dolheader
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{
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uint32_t text_pos[7];
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uint32_t data_pos[11];
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uint32_t text_start[7];
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uint32_t data_start[11];
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uint32_t text_size[7];
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uint32_t data_size[11];
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uint32_t bss_start;
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uint32_t bss_size;
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uint32_t entry_point;
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} dolheader;
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static char dol_argv_commandline[1024];
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uint32_t *load_dol_image (void *dolstart)
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{
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uint32_t i;
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dolheader *dolfile;
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if(dolstart)
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{
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dolfile = (dolheader *) dolstart;
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for(i = 0; i < 7; i++)
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{
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if ((!dolfile->text_size[i]) || (dolfile->text_start[i] < 0x100))
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continue;
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RARCH_LOG("loading text section %u @ 0x%08x (0x%08x bytes)\n",
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i, dolfile->text_start[i], dolfile->text_size[i]);
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ICInvalidateRange ((void *) dolfile->text_start[i],
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dolfile->text_size[i]);
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memmove ((void *) dolfile->text_start[i], dolstart+dolfile->text_pos[i],
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dolfile->text_size[i]);
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}
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for(i = 0; i < 11; i++)
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{
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if ((!dolfile->data_size[i]) || (dolfile->data_start[i] < 0x100))
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continue;
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RARCH_LOG("loading data section %u @ 0x%08x (0x%08x bytes)\n", i,
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dolfile->data_start[i], dolfile->data_size[i]);
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memmove ((void*) dolfile->data_start[i], dolstart+dolfile->data_pos[i],
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dolfile->data_size[i]);
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DCFlushRangeNoSync ((void *) dolfile->data_start[i], dolfile->data_size[i]);
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}
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// clearing bss will mess up loading the huge fba core, so we let libogc's startup routine do it
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// we also cross our fingers and pray to god launching the loader from the fba core doens't overwrite
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// anything too important in this section
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/* RARCH_LOG("clearing bss\n");
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memset ((void *) dolfile->bss_start, 0, dolfile->bss_size);
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DCFlushRange((void *) dolfile->bss_start, dolfile->bss_size); */
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return (uint32_t *) dolfile->entry_point;
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}
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return NULL;
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}
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// NOTE: this does not update the path to point to the new loading .dol file.
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// we only ues it for keeping the current path anyway.
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void dol_copy_argv(struct __argv *argv)
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{
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memcpy(dol_argv_commandline, __system_argv->commandLine, __system_argv->length);
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DCFlushRange((void *) dol_argv_commandline, sizeof(dol_argv_commandline));
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argv->argvMagic = ARGV_MAGIC;
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argv->commandLine = dol_argv_commandline;
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argv->length = __system_argv->length;
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DCFlushRange((void *) argv, sizeof(struct __argv));
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}
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@ -1,31 +0,0 @@
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/*
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* Copyright (C) 2008 dhewg, #wiidev efnet
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*
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* this file is part of geckoloader
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* http://wiibrew.org/index.php?title=Geckoloader
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _DOL_H_
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#define _DOL_H_
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#include <gctypes.h>
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uint32_t *load_dol_image (void *dolstart);
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void dol_copy_argv(struct __argv *argv);
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#endif
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@ -32,10 +32,6 @@ CONSOLE EXTENSIONS
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#include "../rarch_console_main_wrap.c"
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#endif
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#if defined(GEKKO)
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#include "../exec/dol.c"
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#endif
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#ifdef HAVE_RARCH_EXEC
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#include "../rarch_console_exec.c"
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#endif
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@ -25,21 +25,47 @@
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#include <np/drm.h>
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#elif defined(_XBOX)
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#include <xtl.h>
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#elif defined(GEKKO)
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#elif defined(HW_RVL)
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#include <string.h>
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#include <fat.h>
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#include <gctypes.h>
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#include <ogc/cache.h>
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#include <ogc/lwp_threads.h>
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#include <ogc/system.h>
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#include <gctypes.h>
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#ifdef HW_RVL
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#include <sdcard/wiisd_io.h>
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#include <ogc/usbstorage.h>
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#endif
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#include "exec/dol.h"
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#include <sdcard/wiisd_io.h>
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#endif
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#include "rarch_console_exec.h"
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#include "../retroarch_logger.h"
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#ifdef HW_RVL
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#define EXECUTE_ADDR ((uint8_t *) 0x91800000)
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#define BOOTER_ADDR ((uint8_t *) 0x93000000)
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#define ARGS_ADDR ((uint8_t *) 0x93200000)
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extern uint8_t _binary_gx_app_booter_app_booter_bin_start[];
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extern uint8_t _binary_gx_app_booter_app_booter_bin_end[];
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extern void __exception_closeall(void);
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// NOTE: this does not update the path to point to the new loading .dol file.
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// we only need it for keeping the current directory anyway.
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void dol_copy_argv_path(void)
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{
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struct __argv *argv = (struct __argv *) ARGS_ADDR;
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memset(ARGS_ADDR, 0, sizeof(struct __argv));
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char *cmdline = (char *) ARGS_ADDR + sizeof(struct __argv);
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argv->argvMagic = ARGV_MAGIC;
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argv->commandLine = cmdline;
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size_t len = strlen(__system_argv->argv[0]);
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memcpy(cmdline, __system_argv->argv[0], ++len);
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cmdline[len++] = 0;
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cmdline[len++] = 0;
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argv->length = len;
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DCFlushRange(ARGS_ADDR, sizeof(struct __argv) + argv->length);
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}
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#endif
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void rarch_console_exec(const char *path)
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{
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RARCH_LOG("Attempt to load executable: [%s].\n", path);
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@ -73,7 +99,7 @@ void rarch_console_exec(const char *path)
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sys_net_finalize_network();
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cellSysmoduleUnloadModule(CELL_SYSMODULE_SYSUTIL_NP);
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cellSysmoduleUnloadModule(CELL_SYSMODULE_NET);
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#elif defined(GEKKO)
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#elif defined(HW_RVL)
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FILE * fp = fopen(path, "rb");
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if (fp == NULL)
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{
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@ -83,29 +109,26 @@ void rarch_console_exec(const char *path)
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fseek(fp, 0, SEEK_END);
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size_t size = ftell(fp);
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fseek(fp, 0, SEEK_SET);
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uint8_t *mem = (uint8_t *)0x92000000; // should be safe for this small program to use
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fread(mem, 1, size, fp);
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fread(EXECUTE_ADDR, 1, size, fp);
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fclose(fp);
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#ifdef HW_RVL
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fatUnmount("sd:");
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fatUnmount("usb:");
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#endif
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DCFlushRange(EXECUTE_ADDR, size);
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dol_copy_argv_path();
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fatUnmount("carda:");
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fatUnmount("cardb:");
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#ifdef HW_RVL
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fatUnmount("sd:");
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fatUnmount("usb:");
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__io_wiisd.shutdown();
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__io_usbstorage.shutdown();
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#endif
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uint32_t *ep = load_dol_image(mem);
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if (ep[1] == ARGV_MAGIC)
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dol_copy_argv((struct __argv *) &ep[2]);
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RARCH_LOG("jumping to 0x%08X\n", (uint32_t) ep);
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size_t booter_size = _binary_gx_app_booter_app_booter_bin_end - _binary_gx_app_booter_app_booter_bin_start;
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memcpy(BOOTER_ADDR, _binary_gx_app_booter_app_booter_bin_start, booter_size);
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DCFlushRange(BOOTER_ADDR, booter_size);
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RARCH_LOG("jumping to %08x\n", BOOTER_ADDR);
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SYS_ResetSystem(SYS_SHUTDOWN,0,0);
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__lwp_thread_stopmultitasking((void(*)()) ep);
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__lwp_thread_stopmultitasking((void (*)(void)) BOOTER_ADDR);
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#else
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RARCH_WARN("External loading of executables is not supported for this platform.\n");
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#endif
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54
gx/app_booter/Makefile
Normal file
54
gx/app_booter/Makefile
Normal file
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@ -0,0 +1,54 @@
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###
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##
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# Makefile for app_booter.
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##
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# system platform
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system_platform = unix
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ifeq ($(shell uname -a),)
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EXE_EXT = .exe
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system_platform = win
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else ifneq ($(findstring Darwin,$(shell uname -a)),)
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system_platform = osx
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else ifneq ($(findstring MINGW,$(shell uname -a)),)
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system_platform = win
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endif
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CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
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LD = $(DEVKITPPC)/bin/powerpc-eabi-ld$(EXE_EXT)
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OBJCOPY = $(DEVKITPPC)/bin/powerpc-eabi-objcopy$(EXE_EXT)
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BIN_TARGET := app_booter.bin
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ELF_TARGET := app_booter.elf
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INCLUDE := -I. -I$(DEVKITPRO)/libogc/include
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LIBDIRS := -L$(DEVKITPRO)/libogc/lib/wii
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MACHDEP := -mno-eabi -mno-sdata -mcpu=750
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# todo: find out why -Os spits out linker errors
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CFLAGS += -Wall -O2 -ffreestanding -std=gnu99 $(MACHDEP) $(INCLUDE)
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LDFLAGS := -T link.ld
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OBJ = crt0.o dolloader.o elfloader.o main.o string.o sync.o
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all: $(BIN_TARGET)
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|
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%.bin: %.elf
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$(OBJCOPY) -O binary $< $@
|
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|
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$(ELF_TARGET): $(OBJ)
|
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$(LD) -o $@ $(LDFLAGS) $(LIBDIRS) $(OBJ) $(LIBS)
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|
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%.o: %.c
|
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$(CC) $(CFLAGS) -c -o $@ $<
|
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|
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%.o: %.s
|
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$(CC) $(CFLAGS) -c -o $@ $<
|
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|
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clean:
|
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rm -f $(BIN_TARGET)
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rm -f $(ELF_TARGET)
|
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rm -f $(OBJ)
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||||
|
||||
.PHONY: clean
|
||||
|
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21
gx/app_booter/crt0.s
Normal file
21
gx/app_booter/crt0.s
Normal file
|
|
@ -0,0 +1,21 @@
|
|||
# Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
# This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
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.globl _start
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_start:
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# Disable interrupts, enable FP.
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mfmsr 3 ; rlwinm 3,3,0,17,15 ; ori 3,3,0x2000 ; mtmsr 3 ; isync
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# Setup stack.
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lis 1,_stack_top@ha ; addi 1,1,_stack_top@l ; li 0,0 ; stwu 0,-64(1)
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# Clear BSS.
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lis 3,__bss_start@ha ; addi 3,3,__bss_start@l
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li 4,0
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lis 5,__bss_end@ha ; addi 5,5,__bss_end@l ; sub 5,5,3
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bl memset
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# Go!
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b app_booter_main
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56
gx/app_booter/dolloader.c
Normal file
56
gx/app_booter/dolloader.c
Normal file
|
|
@ -0,0 +1,56 @@
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#include <gctypes.h>
|
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#include "string.h"
|
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#include "dolloader.h"
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#include "sync.h"
|
||||
|
||||
#define ARENA1_HI_LIMIT 0x81800000
|
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|
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typedef struct _dolheader {
|
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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(const void *dolstart)
|
||||
{
|
||||
if(!dolstart)
|
||||
return 0;
|
||||
|
||||
u32 i;
|
||||
dolheader *dolfile = (dolheader *) dolstart;
|
||||
|
||||
/* if (dolfile->bss_start > 0 && dolfile->bss_start < ARENA1_HI_LIMIT) {
|
||||
u32 bss_size = dolfile->bss_size;
|
||||
if (dolfile->bss_start + bss_size > ARENA1_HI_LIMIT) {
|
||||
bss_size = ARENA1_HI_LIMIT - dolfile->bss_start;
|
||||
}
|
||||
memset((void *) dolfile->bss_start, 0, bss_size);
|
||||
sync_before_exec((void *) dolfile->bss_start, bss_size);
|
||||
} */
|
||||
|
||||
for (i = 0; i < 7; i++)
|
||||
{
|
||||
if ((!dolfile->text_size[i]) || (dolfile->text_start[i] < 0x100))
|
||||
continue;
|
||||
|
||||
memcpy((void *) dolfile->text_start[i], dolstart + dolfile->text_pos[i], dolfile->text_size[i]);
|
||||
sync_before_exec((void *) dolfile->text_start[i], dolfile->text_size[i]);
|
||||
}
|
||||
|
||||
for (i = 0; i < 11; i++)
|
||||
{
|
||||
if ((!dolfile->data_size[i]) || (dolfile->data_start[i] < 0x100))
|
||||
continue;
|
||||
|
||||
memcpy((void *) dolfile->data_start[i], dolstart + dolfile->data_pos[i], dolfile->data_size[i]);
|
||||
sync_before_exec((void *) dolfile->data_start[i], dolfile->data_size[i]);
|
||||
}
|
||||
|
||||
return dolfile->entry_point;
|
||||
}
|
||||
17
gx/app_booter/dolloader.h
Normal file
17
gx/app_booter/dolloader.h
Normal file
|
|
@ -0,0 +1,17 @@
|
|||
#ifndef _DOLLOADER_H_
|
||||
#define _DOLLOADER_H_
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
typedef void (*entrypoint) (void);
|
||||
|
||||
u32 load_dol_image(const void *dolstart);
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
593
gx/app_booter/elf_abi.h
Normal file
593
gx/app_booter/elf_abi.h
Normal file
|
|
@ -0,0 +1,593 @@
|
|||
/*
|
||||
* Copyright (c) 1995, 1996, 2001, 2002
|
||||
* Erik Theisen. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This is the ELF ABI header file
|
||||
* formerly known as "elf_abi.h".
|
||||
*/
|
||||
|
||||
#ifndef _ELF_ABI_H
|
||||
#define _ELF_ABI_H
|
||||
|
||||
#include <gctypes.h>
|
||||
|
||||
/*
|
||||
* This version doesn't work for 64-bit ABIs - Erik.
|
||||
*/
|
||||
|
||||
/*
|
||||
* These typedefs need to be handled better.
|
||||
*/
|
||||
typedef u32 Elf32_Addr; /* Unsigned program address */
|
||||
typedef u32 Elf32_Off; /* Unsigned file offset */
|
||||
typedef s32 Elf32_Sword; /* Signed large integer */
|
||||
typedef u32 Elf32_Word; /* Unsigned large integer */
|
||||
typedef u16 Elf32_Half; /* Unsigned medium integer */
|
||||
|
||||
/* e_ident[] identification indexes */
|
||||
#define EI_MAG0 0 /* file ID */
|
||||
#define EI_MAG1 1 /* file ID */
|
||||
#define EI_MAG2 2 /* file ID */
|
||||
#define EI_MAG3 3 /* file ID */
|
||||
#define EI_CLASS 4 /* file class */
|
||||
#define EI_DATA 5 /* data encoding */
|
||||
#define EI_VERSION 6 /* ELF header version */
|
||||
#define EI_OSABI 7 /* OS/ABI specific ELF extensions */
|
||||
#define EI_ABIVERSION 8 /* ABI target version */
|
||||
#define EI_PAD 9 /* start of pad bytes */
|
||||
#define EI_NIDENT 16 /* Size of e_ident[] */
|
||||
|
||||
/* e_ident[] magic number */
|
||||
#define ELFMAG0 0x7f /* e_ident[EI_MAG0] */
|
||||
#define ELFMAG1 'E' /* e_ident[EI_MAG1] */
|
||||
#define ELFMAG2 'L' /* e_ident[EI_MAG2] */
|
||||
#define ELFMAG3 'F' /* e_ident[EI_MAG3] */
|
||||
#define ELFMAG "\177ELF" /* magic */
|
||||
#define SELFMAG 4 /* size of magic */
|
||||
|
||||
/* e_ident[] file class */
|
||||
#define ELFCLASSNONE 0 /* invalid */
|
||||
#define ELFCLASS32 1 /* 32-bit objs */
|
||||
#define ELFCLASS64 2 /* 64-bit objs */
|
||||
#define ELFCLASSNUM 3 /* number of classes */
|
||||
|
||||
/* e_ident[] data encoding */
|
||||
#define ELFDATANONE 0 /* invalid */
|
||||
#define ELFDATA2LSB 1 /* Little-Endian */
|
||||
#define ELFDATA2MSB 2 /* Big-Endian */
|
||||
#define ELFDATANUM 3 /* number of data encode defines */
|
||||
|
||||
/* e_ident[] OS/ABI specific ELF extensions */
|
||||
#define ELFOSABI_NONE 0 /* No extension specified */
|
||||
#define ELFOSABI_HPUX 1 /* Hewlett-Packard HP-UX */
|
||||
#define ELFOSABI_NETBSD 2 /* NetBSD */
|
||||
#define ELFOSABI_LINUX 3 /* Linux */
|
||||
#define ELFOSABI_SOLARIS 6 /* Sun Solaris */
|
||||
#define ELFOSABI_AIX 7 /* AIX */
|
||||
#define ELFOSABI_IRIX 8 /* IRIX */
|
||||
#define ELFOSABI_FREEBSD 9 /* FreeBSD */
|
||||
#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX */
|
||||
#define ELFOSABI_MODESTO 11 /* Novell Modesto */
|
||||
#define ELFOSABI_OPENBSD 12 /* OpenBSD */
|
||||
/* 64-255 Architecture-specific value range */
|
||||
|
||||
/* e_ident[] ABI Version */
|
||||
#define ELFABIVERSION 0
|
||||
|
||||
/* e_ident */
|
||||
#define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
|
||||
(ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
|
||||
(ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
|
||||
(ehdr).e_ident[EI_MAG3] == ELFMAG3)
|
||||
|
||||
/* ELF Header */
|
||||
typedef struct elfhdr{
|
||||
unsigned char e_ident[EI_NIDENT]; /* ELF Identification */
|
||||
Elf32_Half e_type; /* object file type */
|
||||
Elf32_Half e_machine; /* machine */
|
||||
Elf32_Word e_version; /* object file version */
|
||||
Elf32_Addr e_entry; /* virtual entry point */
|
||||
Elf32_Off e_phoff; /* program header table offset */
|
||||
Elf32_Off e_shoff; /* section header table offset */
|
||||
Elf32_Word e_flags; /* processor-specific flags */
|
||||
Elf32_Half e_ehsize; /* ELF header size */
|
||||
Elf32_Half e_phentsize; /* program header entry size */
|
||||
Elf32_Half e_phnum; /* number of program header entries */
|
||||
Elf32_Half e_shentsize; /* section header entry size */
|
||||
Elf32_Half e_shnum; /* number of section header entries */
|
||||
Elf32_Half e_shstrndx; /* section header table's "section
|
||||
header string table" entry offset */
|
||||
} Elf32_Ehdr;
|
||||
|
||||
/* e_type */
|
||||
#define ET_NONE 0 /* No file type */
|
||||
#define ET_REL 1 /* relocatable file */
|
||||
#define ET_EXEC 2 /* executable file */
|
||||
#define ET_DYN 3 /* shared object file */
|
||||
#define ET_CORE 4 /* core file */
|
||||
#define ET_NUM 5 /* number of types */
|
||||
#define ET_LOOS 0xfe00 /* reserved range for operating */
|
||||
#define ET_HIOS 0xfeff /* system specific e_type */
|
||||
#define ET_LOPROC 0xff00 /* reserved range for processor */
|
||||
#define ET_HIPROC 0xffff /* specific e_type */
|
||||
|
||||
/* e_machine */
|
||||
#define EM_NONE 0 /* No Machine */
|
||||
#define EM_M32 1 /* AT&T WE 32100 */
|
||||
#define EM_SPARC 2 /* SPARC */
|
||||
#define EM_386 3 /* Intel 80386 */
|
||||
#define EM_68K 4 /* Motorola 68000 */
|
||||
#define EM_88K 5 /* Motorola 88000 */
|
||||
#if 0
|
||||
#define EM_486 6 /* RESERVED - was Intel 80486 */
|
||||
#endif
|
||||
#define EM_860 7 /* Intel 80860 */
|
||||
#define EM_MIPS 8 /* MIPS R3000 Big-Endian only */
|
||||
#define EM_S370 9 /* IBM System/370 Processor */
|
||||
#define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */
|
||||
#if 0
|
||||
#define EM_SPARC64 11 /* RESERVED - was SPARC v9
|
||||
64-bit unoffical */
|
||||
#endif
|
||||
/* RESERVED 11-14 for future use */
|
||||
#define EM_PARISC 15 /* HPPA */
|
||||
/* RESERVED 16 for future use */
|
||||
#define EM_VPP500 17 /* Fujitsu VPP500 */
|
||||
#define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */
|
||||
#define EM_960 19 /* Intel 80960 */
|
||||
#define EM_PPC 20 /* PowerPC */
|
||||
#define EM_PPC64 21 /* 64-bit PowerPC */
|
||||
#define EM_S390 22 /* IBM System/390 Processor */
|
||||
/* RESERVED 23-35 for future use */
|
||||
#define EM_V800 36 /* NEC V800 */
|
||||
#define EM_FR20 37 /* Fujitsu FR20 */
|
||||
#define EM_RH32 38 /* TRW RH-32 */
|
||||
#define EM_RCE 39 /* Motorola RCE */
|
||||
#define EM_ARM 40 /* Advanced Risc Machines ARM */
|
||||
#define EM_ALPHA 41 /* Digital Alpha */
|
||||
#define EM_SH 42 /* Hitachi SH */
|
||||
#define EM_SPARCV9 43 /* SPARC Version 9 */
|
||||
#define EM_TRICORE 44 /* Siemens TriCore embedded processor */
|
||||
#define EM_ARC 45 /* Argonaut RISC Core */
|
||||
#define EM_H8_300 46 /* Hitachi H8/300 */
|
||||
#define EM_H8_300H 47 /* Hitachi H8/300H */
|
||||
#define EM_H8S 48 /* Hitachi H8S */
|
||||
#define EM_H8_500 49 /* Hitachi H8/500 */
|
||||
#define EM_IA_64 50 /* Intel Merced */
|
||||
#define EM_MIPS_X 51 /* Stanford MIPS-X */
|
||||
#define EM_COLDFIRE 52 /* Motorola Coldfire */
|
||||
#define EM_68HC12 53 /* Motorola M68HC12 */
|
||||
#define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator*/
|
||||
#define EM_PCP 55 /* Siemens PCP */
|
||||
#define EM_NCPU 56 /* Sony nCPU embeeded RISC */
|
||||
#define EM_NDR1 57 /* Denso NDR1 microprocessor */
|
||||
#define EM_STARCORE 58 /* Motorola Start*Core processor */
|
||||
#define EM_ME16 59 /* Toyota ME16 processor */
|
||||
#define EM_ST100 60 /* STMicroelectronic ST100 processor */
|
||||
#define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/
|
||||
#define EM_X86_64 62 /* AMD x86-64 */
|
||||
#define EM_PDSP 63 /* Sony DSP Processor */
|
||||
/* RESERVED 64,65 for future use */
|
||||
#define EM_FX66 66 /* Siemens FX66 microcontroller */
|
||||
#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */
|
||||
#define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */
|
||||
#define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */
|
||||
#define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */
|
||||
#define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */
|
||||
#define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */
|
||||
#define EM_SVX 73 /* Silicon Graphics SVx */
|
||||
#define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */
|
||||
#define EM_VAX 75 /* Digital VAX */
|
||||
#define EM_CHRIS 76 /* Axis Communications embedded proc. */
|
||||
#define EM_JAVELIN 77 /* Infineon Technologies emb. proc. */
|
||||
#define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */
|
||||
#define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */
|
||||
#define EM_MMIX 80 /* Donald Knuth's edu 64-bit proc. */
|
||||
#define EM_HUANY 81 /* Harvard University mach-indep objs */
|
||||
#define EM_PRISM 82 /* SiTera Prism */
|
||||
#define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */
|
||||
#define EM_FR30 84 /* Fujitsu FR30 */
|
||||
#define EM_D10V 85 /* Mitsubishi DV10V */
|
||||
#define EM_D30V 86 /* Mitsubishi DV30V */
|
||||
#define EM_V850 87 /* NEC v850 */
|
||||
#define EM_M32R 88 /* Mitsubishi M32R */
|
||||
#define EM_MN10300 89 /* Matsushita MN10200 */
|
||||
#define EM_MN10200 90 /* Matsushita MN10200 */
|
||||
#define EM_PJ 91 /* picoJava */
|
||||
#define EM_NUM 92 /* number of machine types */
|
||||
|
||||
/* Version */
|
||||
#define EV_NONE 0 /* Invalid */
|
||||
#define EV_CURRENT 1 /* Current */
|
||||
#define EV_NUM 2 /* number of versions */
|
||||
|
||||
/* Section Header */
|
||||
typedef struct {
|
||||
Elf32_Word sh_name; /* name - index into section header
|
||||
string table section */
|
||||
Elf32_Word sh_type; /* type */
|
||||
Elf32_Word sh_flags; /* flags */
|
||||
Elf32_Addr sh_addr; /* address */
|
||||
Elf32_Off sh_offset; /* file offset */
|
||||
Elf32_Word sh_size; /* section size */
|
||||
Elf32_Word sh_link; /* section header table index link */
|
||||
Elf32_Word sh_info; /* extra information */
|
||||
Elf32_Word sh_addralign; /* address alignment */
|
||||
Elf32_Word sh_entsize; /* section entry size */
|
||||
} Elf32_Shdr;
|
||||
|
||||
/* Special Section Indexes */
|
||||
#define SHN_UNDEF 0 /* undefined */
|
||||
#define SHN_LORESERVE 0xff00 /* lower bounds of reserved indexes */
|
||||
#define SHN_LOPROC 0xff00 /* reserved range for processor */
|
||||
#define SHN_HIPROC 0xff1f /* specific section indexes */
|
||||
#define SHN_LOOS 0xff20 /* reserved range for operating */
|
||||
#define SHN_HIOS 0xff3f /* specific semantics */
|
||||
#define SHN_ABS 0xfff1 /* absolute value */
|
||||
#define SHN_COMMON 0xfff2 /* common symbol */
|
||||
#define SHN_XINDEX 0xffff /* Index is an extra table */
|
||||
#define SHN_HIRESERVE 0xffff /* upper bounds of reserved indexes */
|
||||
|
||||
/* sh_type */
|
||||
#define SHT_NULL 0 /* inactive */
|
||||
#define SHT_PROGBITS 1 /* program defined information */
|
||||
#define SHT_SYMTAB 2 /* symbol table section */
|
||||
#define SHT_STRTAB 3 /* string table section */
|
||||
#define SHT_RELA 4 /* relocation section with addends*/
|
||||
#define SHT_HASH 5 /* symbol hash table section */
|
||||
#define SHT_DYNAMIC 6 /* dynamic section */
|
||||
#define SHT_NOTE 7 /* note section */
|
||||
#define SHT_NOBITS 8 /* no space section */
|
||||
#define SHT_REL 9 /* relation section without addends */
|
||||
#define SHT_SHLIB 10 /* reserved - purpose unknown */
|
||||
#define SHT_DYNSYM 11 /* dynamic symbol table section */
|
||||
#define SHT_INIT_ARRAY 14 /* Array of constructors */
|
||||
#define SHT_FINI_ARRAY 15 /* Array of destructors */
|
||||
#define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */
|
||||
#define SHT_GROUP 17 /* Section group */
|
||||
#define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */
|
||||
#define SHT_NUM 19 /* number of section types */
|
||||
#define SHT_LOOS 0x60000000 /* Start OS-specific */
|
||||
#define SHT_HIOS 0x6fffffff /* End OS-specific */
|
||||
#define SHT_LOPROC 0x70000000 /* reserved range for processor */
|
||||
#define SHT_HIPROC 0x7fffffff /* specific section header types */
|
||||
#define SHT_LOUSER 0x80000000 /* reserved range for application */
|
||||
#define SHT_HIUSER 0xffffffff /* specific indexes */
|
||||
|
||||
/* Section names */
|
||||
#define ELF_BSS ".bss" /* uninitialized data */
|
||||
#define ELF_COMMENT ".comment" /* version control information */
|
||||
#define ELF_DATA ".data" /* initialized data */
|
||||
#define ELF_DATA1 ".data1" /* initialized data */
|
||||
#define ELF_DEBUG ".debug" /* debug */
|
||||
#define ELF_DYNAMIC ".dynamic" /* dynamic linking information */
|
||||
#define ELF_DYNSTR ".dynstr" /* dynamic string table */
|
||||
#define ELF_DYNSYM ".dynsym" /* dynamic symbol table */
|
||||
#define ELF_FINI ".fini" /* termination code */
|
||||
#define ELF_FINI_ARRAY ".fini_array" /* Array of destructors */
|
||||
#define ELF_GOT ".got" /* global offset table */
|
||||
#define ELF_HASH ".hash" /* symbol hash table */
|
||||
#define ELF_INIT ".init" /* initialization code */
|
||||
#define ELF_INIT_ARRAY ".init_array" /* Array of constuctors */
|
||||
#define ELF_INTERP ".interp" /* Pathname of program interpreter */
|
||||
#define ELF_LINE ".line" /* Symbolic line numnber information */
|
||||
#define ELF_NOTE ".note" /* Contains note section */
|
||||
#define ELF_PLT ".plt" /* Procedure linkage table */
|
||||
#define ELF_PREINIT_ARRAY ".preinit_array" /* Array of pre-constructors */
|
||||
#define ELF_REL_DATA ".rel.data" /* relocation data */
|
||||
#define ELF_REL_FINI ".rel.fini" /* relocation termination code */
|
||||
#define ELF_REL_INIT ".rel.init" /* relocation initialization code */
|
||||
#define ELF_REL_DYN ".rel.dyn" /* relocaltion dynamic link info */
|
||||
#define ELF_REL_RODATA ".rel.rodata" /* relocation read-only data */
|
||||
#define ELF_REL_TEXT ".rel.text" /* relocation code */
|
||||
#define ELF_RODATA ".rodata" /* read-only data */
|
||||
#define ELF_RODATA1 ".rodata1" /* read-only data */
|
||||
#define ELF_SHSTRTAB ".shstrtab" /* section header string table */
|
||||
#define ELF_STRTAB ".strtab" /* string table */
|
||||
#define ELF_SYMTAB ".symtab" /* symbol table */
|
||||
#define ELF_SYMTAB_SHNDX ".symtab_shndx"/* symbol table section index */
|
||||
#define ELF_TBSS ".tbss" /* thread local uninit data */
|
||||
#define ELF_TDATA ".tdata" /* thread local init data */
|
||||
#define ELF_TDATA1 ".tdata1" /* thread local init data */
|
||||
#define ELF_TEXT ".text" /* code */
|
||||
|
||||
/* Section Attribute Flags - sh_flags */
|
||||
#define SHF_WRITE 0x1 /* Writable */
|
||||
#define SHF_ALLOC 0x2 /* occupies memory */
|
||||
#define SHF_EXECINSTR 0x4 /* executable */
|
||||
#define SHF_MERGE 0x10 /* Might be merged */
|
||||
#define SHF_STRINGS 0x20 /* Contains NULL terminated strings */
|
||||
#define SHF_INFO_LINK 0x40 /* sh_info contains SHT index */
|
||||
#define SHF_LINK_ORDER 0x80 /* Preserve order after combining*/
|
||||
#define SHF_OS_NONCONFORMING 0x100 /* Non-standard OS specific handling */
|
||||
#define SHF_GROUP 0x200 /* Member of section group */
|
||||
#define SHF_TLS 0x400 /* Thread local storage */
|
||||
#define SHF_MASKOS 0x0ff00000 /* OS specific */
|
||||
#define SHF_MASKPROC 0xf0000000 /* reserved bits for processor */
|
||||
/* specific section attributes */
|
||||
|
||||
/* Section Group Flags */
|
||||
#define GRP_COMDAT 0x1 /* COMDAT group */
|
||||
#define GRP_MASKOS 0x0ff00000 /* Mask OS specific flags */
|
||||
#define GRP_MASKPROC 0xf0000000 /* Mask processor specific flags */
|
||||
|
||||
/* Symbol Table Entry */
|
||||
typedef struct elf32_sym {
|
||||
Elf32_Word st_name; /* name - index into string table */
|
||||
Elf32_Addr st_value; /* symbol value */
|
||||
Elf32_Word st_size; /* symbol size */
|
||||
unsigned char st_info; /* type and binding */
|
||||
unsigned char st_other; /* 0 - no defined meaning */
|
||||
Elf32_Half st_shndx; /* section header index */
|
||||
} Elf32_Sym;
|
||||
|
||||
/* Symbol table index */
|
||||
#define STN_UNDEF 0 /* undefined */
|
||||
|
||||
/* Extract symbol info - st_info */
|
||||
#define ELF32_ST_BIND(x) ((x) >> 4)
|
||||
#define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf)
|
||||
#define ELF32_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf))
|
||||
#define ELF32_ST_VISIBILITY(x) ((x) & 0x3)
|
||||
|
||||
/* Symbol Binding - ELF32_ST_BIND - st_info */
|
||||
#define STB_LOCAL 0 /* Local symbol */
|
||||
#define STB_GLOBAL 1 /* Global symbol */
|
||||
#define STB_WEAK 2 /* like global - lower precedence */
|
||||
#define STB_NUM 3 /* number of symbol bindings */
|
||||
#define STB_LOOS 10 /* reserved range for operating */
|
||||
#define STB_HIOS 12 /* system specific symbol bindings */
|
||||
#define STB_LOPROC 13 /* reserved range for processor */
|
||||
#define STB_HIPROC 15 /* specific symbol bindings */
|
||||
|
||||
/* Symbol type - ELF32_ST_TYPE - st_info */
|
||||
#define STT_NOTYPE 0 /* not specified */
|
||||
#define STT_OBJECT 1 /* data object */
|
||||
#define STT_FUNC 2 /* function */
|
||||
#define STT_SECTION 3 /* section */
|
||||
#define STT_FILE 4 /* file */
|
||||
#define STT_NUM 5 /* number of symbol types */
|
||||
#define STT_TLS 6 /* Thread local storage symbol */
|
||||
#define STT_LOOS 10 /* reserved range for operating */
|
||||
#define STT_HIOS 12 /* system specific symbol types */
|
||||
#define STT_LOPROC 13 /* reserved range for processor */
|
||||
#define STT_HIPROC 15 /* specific symbol types */
|
||||
|
||||
/* Symbol visibility - ELF32_ST_VISIBILITY - st_other */
|
||||
#define STV_DEFAULT 0 /* Normal visibility rules */
|
||||
#define STV_INTERNAL 1 /* Processor specific hidden class */
|
||||
#define STV_HIDDEN 2 /* Symbol unavailable in other mods */
|
||||
#define STV_PROTECTED 3 /* Not preemptible, not exported */
|
||||
|
||||
|
||||
/* Relocation entry with implicit addend */
|
||||
typedef struct
|
||||
{
|
||||
Elf32_Addr r_offset; /* offset of relocation */
|
||||
Elf32_Word r_info; /* symbol table index and type */
|
||||
} Elf32_Rel;
|
||||
|
||||
/* Relocation entry with explicit addend */
|
||||
typedef struct
|
||||
{
|
||||
Elf32_Addr r_offset; /* offset of relocation */
|
||||
Elf32_Word r_info; /* symbol table index and type */
|
||||
Elf32_Sword r_addend;
|
||||
} Elf32_Rela;
|
||||
|
||||
/* Extract relocation info - r_info */
|
||||
#define ELF32_R_SYM(i) ((i) >> 8)
|
||||
#define ELF32_R_TYPE(i) ((unsigned char) (i))
|
||||
#define ELF32_R_INFO(s,t) (((s) << 8) + (unsigned char)(t))
|
||||
|
||||
/* Program Header */
|
||||
typedef struct {
|
||||
Elf32_Word p_type; /* segment type */
|
||||
Elf32_Off p_offset; /* segment offset */
|
||||
Elf32_Addr p_vaddr; /* virtual address of segment */
|
||||
Elf32_Addr p_paddr; /* physical address - ignored? */
|
||||
Elf32_Word p_filesz; /* number of bytes in file for seg. */
|
||||
Elf32_Word p_memsz; /* number of bytes in mem. for seg. */
|
||||
Elf32_Word p_flags; /* flags */
|
||||
Elf32_Word p_align; /* memory alignment */
|
||||
} Elf32_Phdr;
|
||||
|
||||
/* Segment types - p_type */
|
||||
#define PT_NULL 0 /* unused */
|
||||
#define PT_LOAD 1 /* loadable segment */
|
||||
#define PT_DYNAMIC 2 /* dynamic linking section */
|
||||
#define PT_INTERP 3 /* the RTLD */
|
||||
#define PT_NOTE 4 /* auxiliary information */
|
||||
#define PT_SHLIB 5 /* reserved - purpose undefined */
|
||||
#define PT_PHDR 6 /* program header */
|
||||
#define PT_TLS 7 /* Thread local storage template */
|
||||
#define PT_NUM 8 /* Number of segment types */
|
||||
#define PT_LOOS 0x60000000 /* reserved range for operating */
|
||||
#define PT_HIOS 0x6fffffff /* system specific segment types */
|
||||
#define PT_LOPROC 0x70000000 /* reserved range for processor */
|
||||
#define PT_HIPROC 0x7fffffff /* specific segment types */
|
||||
|
||||
/* Segment flags - p_flags */
|
||||
#define PF_X 0x1 /* Executable */
|
||||
#define PF_W 0x2 /* Writable */
|
||||
#define PF_R 0x4 /* Readable */
|
||||
#define PF_MASKOS 0x0ff00000 /* OS specific segment flags */
|
||||
#define PF_MASKPROC 0xf0000000 /* reserved bits for processor */
|
||||
/* specific segment flags */
|
||||
/* Dynamic structure */
|
||||
typedef struct
|
||||
{
|
||||
Elf32_Sword d_tag; /* controls meaning of d_val */
|
||||
union
|
||||
{
|
||||
Elf32_Word d_val; /* Multiple meanings - see d_tag */
|
||||
Elf32_Addr d_ptr; /* program virtual address */
|
||||
} d_un;
|
||||
} Elf32_Dyn;
|
||||
|
||||
extern Elf32_Dyn _DYNAMIC[];
|
||||
|
||||
/* Dynamic Array Tags - d_tag */
|
||||
#define DT_NULL 0 /* marks end of _DYNAMIC array */
|
||||
#define DT_NEEDED 1 /* string table offset of needed lib */
|
||||
#define DT_PLTRELSZ 2 /* size of relocation entries in PLT */
|
||||
#define DT_PLTGOT 3 /* address PLT/GOT */
|
||||
#define DT_HASH 4 /* address of symbol hash table */
|
||||
#define DT_STRTAB 5 /* address of string table */
|
||||
#define DT_SYMTAB 6 /* address of symbol table */
|
||||
#define DT_RELA 7 /* address of relocation table */
|
||||
#define DT_RELASZ 8 /* size of relocation table */
|
||||
#define DT_RELAENT 9 /* size of relocation entry */
|
||||
#define DT_STRSZ 10 /* size of string table */
|
||||
#define DT_SYMENT 11 /* size of symbol table entry */
|
||||
#define DT_INIT 12 /* address of initialization func. */
|
||||
#define DT_FINI 13 /* address of termination function */
|
||||
#define DT_SONAME 14 /* string table offset of shared obj */
|
||||
#define DT_RPATH 15 /* string table offset of library
|
||||
search path */
|
||||
#define DT_SYMBOLIC 16 /* start sym search in shared obj. */
|
||||
#define DT_REL 17 /* address of rel. tbl. w addends */
|
||||
#define DT_RELSZ 18 /* size of DT_REL relocation table */
|
||||
#define DT_RELENT 19 /* size of DT_REL relocation entry */
|
||||
#define DT_PLTREL 20 /* PLT referenced relocation entry */
|
||||
#define DT_DEBUG 21 /* bugger */
|
||||
#define DT_TEXTREL 22 /* Allow rel. mod. to unwritable seg */
|
||||
#define DT_JMPREL 23 /* add. of PLT's relocation entries */
|
||||
#define DT_BIND_NOW 24 /* Process relocations of object */
|
||||
#define DT_INIT_ARRAY 25 /* Array with addresses of init fct */
|
||||
#define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */
|
||||
#define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */
|
||||
#define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */
|
||||
#define DT_RUNPATH 29 /* Library search path */
|
||||
#define DT_FLAGS 30 /* Flags for the object being loaded */
|
||||
#define DT_ENCODING 32 /* Start of encoded range */
|
||||
#define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/
|
||||
#define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */
|
||||
#define DT_NUM 34 /* Number used. */
|
||||
#define DT_LOOS 0x60000000 /* reserved range for OS */
|
||||
#define DT_HIOS 0x6fffffff /* specific dynamic array tags */
|
||||
#define DT_LOPROC 0x70000000 /* reserved range for processor */
|
||||
#define DT_HIPROC 0x7fffffff /* specific dynamic array tags */
|
||||
|
||||
/* Dynamic Tag Flags - d_un.d_val */
|
||||
#define DF_ORIGIN 0x01 /* Object may use DF_ORIGIN */
|
||||
#define DF_SYMBOLIC 0x02 /* Symbol resolutions starts here */
|
||||
#define DF_TEXTREL 0x04 /* Object contains text relocations */
|
||||
#define DF_BIND_NOW 0x08 /* No lazy binding for this object */
|
||||
#define DF_STATIC_TLS 0x10 /* Static thread local storage */
|
||||
|
||||
/* Standard ELF hashing function */
|
||||
unsigned long elf_hash(const unsigned char *name);
|
||||
|
||||
#define ELF_TARG_VER 1 /* The ver for which this code is intended */
|
||||
|
||||
/*
|
||||
* XXX - PowerPC defines really don't belong in here,
|
||||
* but we'll put them in for simplicity.
|
||||
*/
|
||||
|
||||
/* Values for Elf32/64_Ehdr.e_flags. */
|
||||
#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */
|
||||
|
||||
/* Cygnus local bits below */
|
||||
#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/
|
||||
#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib
|
||||
flag */
|
||||
|
||||
/* PowerPC relocations defined by the ABIs */
|
||||
#define R_PPC_NONE 0
|
||||
#define R_PPC_ADDR32 1 /* 32bit absolute address */
|
||||
#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */
|
||||
#define R_PPC_ADDR16 3 /* 16bit absolute address */
|
||||
#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */
|
||||
#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */
|
||||
#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */
|
||||
#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */
|
||||
#define R_PPC_ADDR14_BRTAKEN 8
|
||||
#define R_PPC_ADDR14_BRNTAKEN 9
|
||||
#define R_PPC_REL24 10 /* PC relative 26 bit */
|
||||
#define R_PPC_REL14 11 /* PC relative 16 bit */
|
||||
#define R_PPC_REL14_BRTAKEN 12
|
||||
#define R_PPC_REL14_BRNTAKEN 13
|
||||
#define R_PPC_GOT16 14
|
||||
#define R_PPC_GOT16_LO 15
|
||||
#define R_PPC_GOT16_HI 16
|
||||
#define R_PPC_GOT16_HA 17
|
||||
#define R_PPC_PLTREL24 18
|
||||
#define R_PPC_COPY 19
|
||||
#define R_PPC_GLOB_DAT 20
|
||||
#define R_PPC_JMP_SLOT 21
|
||||
#define R_PPC_RELATIVE 22
|
||||
#define R_PPC_LOCAL24PC 23
|
||||
#define R_PPC_UADDR32 24
|
||||
#define R_PPC_UADDR16 25
|
||||
#define R_PPC_REL32 26
|
||||
#define R_PPC_PLT32 27
|
||||
#define R_PPC_PLTREL32 28
|
||||
#define R_PPC_PLT16_LO 29
|
||||
#define R_PPC_PLT16_HI 30
|
||||
#define R_PPC_PLT16_HA 31
|
||||
#define R_PPC_SDAREL16 32
|
||||
#define R_PPC_SECTOFF 33
|
||||
#define R_PPC_SECTOFF_LO 34
|
||||
#define R_PPC_SECTOFF_HI 35
|
||||
#define R_PPC_SECTOFF_HA 36
|
||||
/* Keep this the last entry. */
|
||||
#define R_PPC_NUM 37
|
||||
|
||||
/* The remaining relocs are from the Embedded ELF ABI, and are not
|
||||
in the SVR4 ELF ABI. */
|
||||
#define R_PPC_EMB_NADDR32 101
|
||||
#define R_PPC_EMB_NADDR16 102
|
||||
#define R_PPC_EMB_NADDR16_LO 103
|
||||
#define R_PPC_EMB_NADDR16_HI 104
|
||||
#define R_PPC_EMB_NADDR16_HA 105
|
||||
#define R_PPC_EMB_SDAI16 106
|
||||
#define R_PPC_EMB_SDA2I16 107
|
||||
#define R_PPC_EMB_SDA2REL 108
|
||||
#define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */
|
||||
#define R_PPC_EMB_MRKREF 110
|
||||
#define R_PPC_EMB_RELSEC16 111
|
||||
#define R_PPC_EMB_RELST_LO 112
|
||||
#define R_PPC_EMB_RELST_HI 113
|
||||
#define R_PPC_EMB_RELST_HA 114
|
||||
#define R_PPC_EMB_BIT_FLD 115
|
||||
#define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */
|
||||
|
||||
/* Diab tool relocations. */
|
||||
#define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */
|
||||
#define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */
|
||||
#define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */
|
||||
#define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */
|
||||
#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */
|
||||
#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */
|
||||
|
||||
/* This is a phony reloc to handle any old fashioned TOC16 references
|
||||
that may still be in object files. */
|
||||
#define R_PPC_TOC16 255
|
||||
|
||||
#endif /* _ELF_H */
|
||||
92
gx/app_booter/elfloader.c
Normal file
92
gx/app_booter/elfloader.c
Normal file
|
|
@ -0,0 +1,92 @@
|
|||
/*
|
||||
* Copyright (c) 2001 William L. Pitts
|
||||
* Modifications (c) 2004 Felix Domke
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms are freely
|
||||
* permitted provided that the above copyright notice and this
|
||||
* paragraph and the following disclaimer are duplicated in all
|
||||
* such forms.
|
||||
*
|
||||
* This software is provided "AS IS" and without any express or
|
||||
* implied warranties, including, without limitation, the implied
|
||||
* warranties of merchantability and fitness for a particular
|
||||
* purpose.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#include "elf_abi.h"
|
||||
#include "sync.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ======================================================================
|
||||
* Determine if a valid ELF image exists at the given memory location.
|
||||
* First looks at the ELF header magic field, the makes sure that it is
|
||||
* executable and makes sure that it is for a PowerPC.
|
||||
* ====================================================================== */
|
||||
s32 valid_elf_image (void *addr)
|
||||
{
|
||||
Elf32_Ehdr *ehdr; /* Elf header structure pointer */
|
||||
|
||||
ehdr = (Elf32_Ehdr *) addr;
|
||||
|
||||
if (!IS_ELF (*ehdr))
|
||||
return 0;
|
||||
|
||||
if (ehdr->e_type != ET_EXEC)
|
||||
return -1;
|
||||
|
||||
if (ehdr->e_machine != EM_PPC)
|
||||
return -1;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
/* ======================================================================
|
||||
* A very simple elf loader, assumes the image is valid, returns the
|
||||
* entry point address.
|
||||
* ====================================================================== */
|
||||
|
||||
u32 load_elf_image (void *elfstart) {
|
||||
Elf32_Ehdr *ehdr;
|
||||
Elf32_Phdr *phdrs;
|
||||
u8 *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;
|
||||
|
||||
phdrs[i].p_paddr &= 0x3FFFFFFF;
|
||||
phdrs[i].p_paddr |= 0x80000000;
|
||||
|
||||
if(phdrs[i].p_filesz > phdrs[i].p_memsz)
|
||||
return 0;
|
||||
|
||||
if(!phdrs[i].p_filesz)
|
||||
continue;
|
||||
|
||||
image = (u8 *) (elfstart + phdrs[i].p_offset);
|
||||
memcpy ((void *) phdrs[i].p_paddr, (const void *) image, phdrs[i].p_filesz);
|
||||
|
||||
sync_before_exec ((void *) phdrs[i].p_paddr, phdrs[i].p_memsz);
|
||||
|
||||
//if(phdrs[i].p_flags & PF_X)
|
||||
//ICInvalidateRange ((void *) phdrs[i].p_paddr, phdrs[i].p_memsz);
|
||||
}
|
||||
|
||||
return ((ehdr->e_entry & 0x3FFFFFFF) | 0x80000000);
|
||||
}
|
||||
16
gx/app_booter/elfloader.h
Normal file
16
gx/app_booter/elfloader.h
Normal file
|
|
@ -0,0 +1,16 @@
|
|||
#ifndef _ELFLOADER_H_
|
||||
#define _ELFLOADER_H_
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif
|
||||
|
||||
s32 valid_elf_image (void *addr);
|
||||
u32 load_elf_image (void *addr);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
27
gx/app_booter/link.ld
Normal file
27
gx/app_booter/link.ld
Normal file
|
|
@ -0,0 +1,27 @@
|
|||
/* Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt */
|
||||
|
||||
OUTPUT_FORMAT("elf32-powerpc")
|
||||
OUTPUT_ARCH(powerpc:common)
|
||||
|
||||
ENTRY(_start)
|
||||
|
||||
SECTIONS {
|
||||
. = 0x93000000;
|
||||
|
||||
.start : { crt0.o(*) }
|
||||
.text : { *(.text) }
|
||||
.rodata : { *(.rodata .rodata.*)}
|
||||
.data : { *(.data) }
|
||||
|
||||
__bss_start = .;
|
||||
.bss : { *(.bss) }
|
||||
__bss_end = .;
|
||||
|
||||
. = ALIGN(0x40);
|
||||
.stack : {
|
||||
. += 0x8000;
|
||||
_stack_top = .;
|
||||
}
|
||||
}
|
||||
41
gx/app_booter/main.c
Normal file
41
gx/app_booter/main.c
Normal file
|
|
@ -0,0 +1,41 @@
|
|||
/* Copyright 2011 Dimok
|
||||
This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt */
|
||||
#include <gccore.h>
|
||||
#include <stdio.h>
|
||||
#include <stdarg.h>
|
||||
#include "string.h"
|
||||
|
||||
#include "dolloader.h"
|
||||
#include "elfloader.h"
|
||||
#include "sync.h"
|
||||
|
||||
#define EXECUTABLE_MEM_ADDR 0x91800000
|
||||
#define SYSTEM_ARGV ((struct __argv *) 0x93200000)
|
||||
|
||||
// if we name this main, GCC inserts the __eabi symbol, even when we specify -mno-eabi
|
||||
// what a lovely "feature"
|
||||
void app_booter_main(void)
|
||||
{
|
||||
void *exeBuffer = (void *) EXECUTABLE_MEM_ADDR;
|
||||
u32 exeEntryPointAddress = 0;
|
||||
entrypoint exeEntryPoint;
|
||||
|
||||
if (valid_elf_image(exeBuffer) == 1)
|
||||
exeEntryPointAddress = load_elf_image(exeBuffer);
|
||||
else
|
||||
exeEntryPointAddress = load_dol_image(exeBuffer);
|
||||
|
||||
exeEntryPoint = (entrypoint) exeEntryPointAddress;
|
||||
if (!exeEntryPoint)
|
||||
return;
|
||||
|
||||
if (SYSTEM_ARGV->argvMagic == ARGV_MAGIC)
|
||||
{
|
||||
void *new_argv = (void *) (exeEntryPointAddress + 8);
|
||||
memcpy(new_argv, SYSTEM_ARGV, sizeof(struct __argv));
|
||||
sync_before_exec(new_argv, sizeof(struct __argv));
|
||||
}
|
||||
|
||||
exeEntryPoint ();
|
||||
}
|
||||
25
gx/app_booter/string.c
Normal file
25
gx/app_booter/string.c
Normal file
|
|
@ -0,0 +1,25 @@
|
|||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
void *memset(void *b, int c, size_t len)
|
||||
{
|
||||
size_t i;
|
||||
|
||||
for (i = 0; i < len; i++)
|
||||
((unsigned char *)b)[i] = c;
|
||||
|
||||
return b;
|
||||
}
|
||||
|
||||
void *memcpy(void *dst, const void *src, size_t len)
|
||||
{
|
||||
size_t i;
|
||||
|
||||
for (i = 0; i < len; i++)
|
||||
((unsigned char *)dst)[i] = ((unsigned char *)src)[i];
|
||||
|
||||
return dst;
|
||||
}
|
||||
9
gx/app_booter/string.h
Normal file
9
gx/app_booter/string.h
Normal file
|
|
@ -0,0 +1,9 @@
|
|||
#ifndef STRING_H_
|
||||
#define STRING_H_
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
void *memcpy(void *dst, const void *src, size_t len);
|
||||
void *memset(void *b, int c, size_t len);
|
||||
|
||||
#endif
|
||||
18
gx/app_booter/sync.c
Normal file
18
gx/app_booter/sync.c
Normal file
|
|
@ -0,0 +1,18 @@
|
|||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
#include <gctypes.h>
|
||||
|
||||
void sync_before_exec(const void *p, u32 len)
|
||||
{
|
||||
u32 a, b;
|
||||
|
||||
a = (u32)p & ~0x1f;
|
||||
b = ((u32)p + len + 0x1f) & ~0x1f;
|
||||
|
||||
for ( ; a < b; a += 32)
|
||||
asm("dcbst 0,%0 ; sync ; icbi 0,%0" : : "b"(a));
|
||||
|
||||
asm("sync ; isync");
|
||||
}
|
||||
8
gx/app_booter/sync.h
Normal file
8
gx/app_booter/sync.h
Normal file
|
|
@ -0,0 +1,8 @@
|
|||
#ifndef __SYNC_H_
|
||||
#define __SYNC_H_
|
||||
|
||||
void sync_before_read(void *p, u32 len);
|
||||
void sync_after_write(const void *p, u32 len);
|
||||
void sync_before_exec(const void *p, u32 len);
|
||||
|
||||
#endif
|
||||
|
|
@ -163,11 +163,11 @@ int main(int argc, char *argv[])
|
|||
init_settings();
|
||||
}
|
||||
|
||||
rarch_console_exec(libretro_path);
|
||||
|
||||
#ifdef HAVE_LOGGER
|
||||
logger_shutdown();
|
||||
#endif
|
||||
|
||||
rarch_console_exec(libretro_path);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user