H. Peter Anvin | c889ba8 | 2013-04-16 16:02:58 -0700 | [diff] [blame] | 1 | #include "relocs.h" |
| 2 | |
| 3 | void die(char *fmt, ...) |
| 4 | { |
| 5 | va_list ap; |
| 6 | va_start(ap, fmt); |
| 7 | vfprintf(stderr, fmt, ap); |
| 8 | va_end(ap); |
| 9 | exit(1); |
| 10 | } |
| 11 | |
| 12 | static void usage(void) |
| 13 | { |
| 14 | die("relocs [--abs-syms|--abs-relocs|--text|--realmode] vmlinux\n"); |
| 15 | } |
| 16 | |
| 17 | int main(int argc, char **argv) |
| 18 | { |
| 19 | int show_absolute_syms, show_absolute_relocs; |
| 20 | int as_text, use_real_mode; |
| 21 | const char *fname; |
| 22 | FILE *fp; |
| 23 | int i; |
| 24 | unsigned char e_ident[EI_NIDENT]; |
| 25 | |
| 26 | show_absolute_syms = 0; |
| 27 | show_absolute_relocs = 0; |
| 28 | as_text = 0; |
| 29 | use_real_mode = 0; |
| 30 | fname = NULL; |
| 31 | for (i = 1; i < argc; i++) { |
| 32 | char *arg = argv[i]; |
| 33 | if (*arg == '-') { |
| 34 | if (strcmp(arg, "--abs-syms") == 0) { |
| 35 | show_absolute_syms = 1; |
| 36 | continue; |
| 37 | } |
| 38 | if (strcmp(arg, "--abs-relocs") == 0) { |
| 39 | show_absolute_relocs = 1; |
| 40 | continue; |
| 41 | } |
| 42 | if (strcmp(arg, "--text") == 0) { |
| 43 | as_text = 1; |
| 44 | continue; |
| 45 | } |
| 46 | if (strcmp(arg, "--realmode") == 0) { |
| 47 | use_real_mode = 1; |
| 48 | continue; |
| 49 | } |
| 50 | } |
| 51 | else if (!fname) { |
| 52 | fname = arg; |
| 53 | continue; |
| 54 | } |
| 55 | usage(); |
| 56 | } |
| 57 | if (!fname) { |
| 58 | usage(); |
| 59 | } |
| 60 | fp = fopen(fname, "r"); |
| 61 | if (!fp) { |
| 62 | die("Cannot open %s: %s\n", fname, strerror(errno)); |
| 63 | } |
| 64 | if (fread(&e_ident, 1, EI_NIDENT, fp) != EI_NIDENT) { |
| 65 | die("Cannot read %s: %s", fname, strerror(errno)); |
| 66 | } |
| 67 | rewind(fp); |
| 68 | if (e_ident[EI_CLASS] == ELFCLASS64) |
| 69 | process_64(fp, use_real_mode, as_text, |
| 70 | show_absolute_syms, show_absolute_relocs); |
| 71 | else |
| 72 | process_32(fp, use_real_mode, as_text, |
| 73 | show_absolute_syms, show_absolute_relocs); |
| 74 | fclose(fp); |
| 75 | return 0; |
| 76 | } |