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/* Copyright 2007, Google Inc. */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
#ifndef MEMBASE
#define MEMBASE 0
#endif
int main(int argc, char *argv[])
{
struct stat s;
unsigned size, base;
int unified_boot = 0;
unsigned unified_boot_magic[20];
unsigned non_unified_boot_magic[10];
unsigned magic_len = 0;
unsigned *magic;
int fd;
if(argc < 3) {
fprintf(stderr,"usage: mkheader <bin> <hdr>\n");
return -1;
}
if (argc == 4) {
if(!strcmp("unified-boot",argv[3])) {
unified_boot = 1;
}
}
if(stat(argv[1], &s)) {
perror("cannot stat binary");
return -1;
}
if(unified_boot) {
magic = unified_boot_magic;
magic_len = sizeof(unified_boot_magic);
} else {
magic = non_unified_boot_magic;
magic_len = sizeof(non_unified_boot_magic);
}
size = s.st_size;
base = MEMBASE;
magic[0] = 0x00000005; /* appsbl */
magic[1] = 0x00000002; /* nand */
magic[2] = 0x00000000;
magic[3] = base;
magic[4] = size;
magic[5] = size;
magic[6] = size + base;
magic[7] = 0x00000000;
magic[8] = size + base;
magic[9] = 0x00000000;
if (unified_boot == 1)
{
magic[10] = 0x33836685; /* cookie magic number */
magic[11] = 0x00000001; /* cookie version */
magic[12] = 0x00000002; /* file formats */
magic[13] = 0x00000000;
magic[14] = 0x00500000; /* 5M for boot.img */
magic[15] = 0x00000000;
magic[16] = 0x00000000;
magic[17] = 0x00000000;
magic[18] = 0x00000000;
magic[19] = 0x00000000;
}
fd = open(argv[2], O_WRONLY | O_CREAT | O_TRUNC, 0644);
if(fd < 0) {
perror("cannot open header for writing");
return -1;
}
if(write(fd, magic, magic_len) != magic_len) {
perror("cannot write header");
close(fd);
unlink(argv[2]);
return -1;
}
close(fd);
return 0;
}
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