llc2: Remove dead code for state machine
[linux/fpc-iii.git] / arch / mips / boot / compressed / calc_vmlinuz_load_addr.c
blob9a6243676e2203b4c3f9addcc3c236fb27ba6060
1 /*
2 * Copyright (C) 2010 "Wu Zhangjin" <wuzhangjin@gmail.com>
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
8 */
10 #include <sys/types.h>
11 #include <sys/stat.h>
12 #include <errno.h>
13 #include <stdint.h>
14 #include <stdio.h>
15 #include <stdlib.h>
17 int main(int argc, char *argv[])
19 unsigned long long vmlinux_size, vmlinux_load_addr, vmlinuz_load_addr;
20 struct stat sb;
22 if (argc != 3) {
23 fprintf(stderr, "Usage: %s <pathname> <vmlinux_load_addr>\n",
24 argv[0]);
25 return EXIT_FAILURE;
28 if (stat(argv[1], &sb) == -1) {
29 perror("stat");
30 return EXIT_FAILURE;
33 /* Convert hex characters to dec number */
34 errno = 0;
35 if (sscanf(argv[2], "%llx", &vmlinux_load_addr) != 1) {
36 if (errno != 0)
37 perror("sscanf");
38 else
39 fprintf(stderr, "No matching characters\n");
41 return EXIT_FAILURE;
44 vmlinux_size = (uint64_t)sb.st_size;
45 vmlinuz_load_addr = vmlinux_load_addr + vmlinux_size;
48 * Align with 16 bytes: "greater than that used for any standard data
49 * types by a MIPS compiler." -- See MIPS Run Linux (Second Edition).
52 vmlinuz_load_addr += (16 - vmlinux_size % 16);
54 printf("0x%llx\n", vmlinuz_load_addr);
56 return EXIT_SUCCESS;