1 /*
2  * Copyright (C) 2010 "Wu Zhangjin" <wuzhangjin@gmail.com>
3  *
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  */
9 
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>
16 
17 int main(int argc, char *argv[])
18 {
19 	unsigned long long vmlinux_size, vmlinux_load_addr, vmlinuz_load_addr;
20 	struct stat sb;
21 
22 	if (argc != 3) {
23 		fprintf(stderr, "Usage: %s <pathname> <vmlinux_load_addr>\n",
24 				argv[0]);
25 		return EXIT_FAILURE;
26 	}
27 
28 	if (stat(argv[1], &sb) == -1) {
29 		perror("stat");
30 		return EXIT_FAILURE;
31 	}
32 
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");
40 
41 		return EXIT_FAILURE;
42 	}
43 
44 	vmlinux_size = (uint64_t)sb.st_size;
45 	vmlinuz_load_addr = vmlinux_load_addr + vmlinux_size;
46 
47 	/*
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).
50 	 */
51 
52 	vmlinuz_load_addr += (16 - vmlinux_size % 16);
53 
54 	printf("0x%llx\n", vmlinuz_load_addr);
55 
56 	return EXIT_SUCCESS;
57 }
58