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sbinfo: first try at creating an elf file out of the .sb mess

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28717 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Amaury Pouly 2010-12-01 16:17:11 +00:00
parent 71ad3679dc
commit 1583b1cd53
4 changed files with 361 additions and 4 deletions
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52
utils/sbinfo/sbinfo.c
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@ -38,7 +38,9 @@
#include <string.h>
#include <ctype.h>
#include <time.h>
#include "crypto.h"
#include "elf.h"
#if 1 /* ANSI colors */
@ -117,7 +119,7 @@ struct sb_instruction_call_t
uint32_t arg;
} __attribute__((packed));
static void *xmalloc(size_t s) /* malloc helper */
void *xmalloc(size_t s) /* malloc helper, used in elf.c */
{
void * r = malloc(s);
if(!r) bugp("malloc");
@ -259,9 +261,31 @@ static uint8_t instruction_checksum(struct sb_instruction_header_t *hdr)
return sum;
}
static void elf_write(void *user, uint32_t addr, const void *buf, size_t count)
{
FILE *f = user;
fseek(f, addr, SEEK_SET);
fwrite(buf, count, 1, f);
}
static void extract_elf_section(struct elf_params_t *elf, int count, const char *prefix)
{
char *filename = xmalloc(strlen(prefix) + 32);
sprintf(filename, "%s.%d.elf", prefix, count);
printf("write %s\n", filename);
FILE *fd = fopen(filename, "wb");
free(filename);
if(fd == NULL)
return ;
elf_output(elf, elf_write, fd);
fclose(fd);
}
static void extract_section(int data_sec, char name[5], byte *buf, int size, const char *indent)
{
char filename[PREFIX_SIZE + 16];
char filename[PREFIX_SIZE + 32];
snprintf(filename, sizeof filename, "%s%s.bin", out_prefix, name);
FILE *fd = fopen(filename, "wb");
if (fd != NULL) {
@ -270,6 +294,13 @@ static void extract_section(int data_sec, char name[5], byte *buf, int size, con
}
if(data_sec)
return;
snprintf(filename, sizeof filename, "%s%s", out_prefix, name);
/* elf construction */
struct elf_params_t elf;
elf_init(&elf);
int elf_count = 0;
/* Pretty print the content */
int pos = 0;
while(pos < size)
@ -306,6 +337,10 @@ static void extract_section(int data_sec, char name[5], byte *buf, int size, con
else
printf(" Failed (crc=0x%08x)\n", computed_crc);
/* elf construction */
elf_add_load_section(&elf, load->addr, load->len,
&buf[pos + sizeof(struct sb_instruction_load_t)]);
pos += load->len + sizeof(struct sb_instruction_load_t);
// unsure about rounding
pos = ROUND_UP(pos, 16);
@ -326,6 +361,9 @@ static void extract_section(int data_sec, char name[5], byte *buf, int size, con
printf("pattern=0x%08x\n", fill->pattern);
color(OFF);
/* elf construction */
elf_add_fill_section(&elf, fill->addr, fill->len, fill->pattern);
pos += sizeof(struct sb_instruction_fill_t);
// fixme: useless as pos is a multiple of 16 and fill struct is 4-bytes wide ?
pos = ROUND_UP(pos, 16);
@ -348,6 +386,12 @@ static void extract_section(int data_sec, char name[5], byte *buf, int size, con
printf("arg=0x%08x\n", call->arg);
color(OFF);
/* elf construction */
elf_set_start_addr(&elf, call->addr);
extract_elf_section(&elf, elf_count++, filename);
elf_release(&elf);
elf_init(&elf);
pos += sizeof(struct sb_instruction_call_t);
// fixme: useless as pos is a multiple of 16 and call struct is 4-bytes wide ?
pos = ROUND_UP(pos, 16);
@ -359,6 +403,10 @@ static void extract_section(int data_sec, char name[5], byte *buf, int size, con
break;
}
}
if(elf_is_empty(&elf))
extract_elf_section(&elf, elf_count++, filename);
elf_release(&elf);
}
static void extract(unsigned long filesize)