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