1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun #include "relocs.h"
3*4882a593Smuzhiyun
die(char * fmt,...)4*4882a593Smuzhiyun void die(char *fmt, ...)
5*4882a593Smuzhiyun {
6*4882a593Smuzhiyun va_list ap;
7*4882a593Smuzhiyun va_start(ap, fmt);
8*4882a593Smuzhiyun vfprintf(stderr, fmt, ap);
9*4882a593Smuzhiyun va_end(ap);
10*4882a593Smuzhiyun exit(1);
11*4882a593Smuzhiyun }
12*4882a593Smuzhiyun
usage(void)13*4882a593Smuzhiyun static void usage(void)
14*4882a593Smuzhiyun {
15*4882a593Smuzhiyun die("relocs [--abs-syms|--abs-relocs|--reloc-info|--text|--realmode]" \
16*4882a593Smuzhiyun " vmlinux\n");
17*4882a593Smuzhiyun }
18*4882a593Smuzhiyun
main(int argc,char ** argv)19*4882a593Smuzhiyun int main(int argc, char **argv)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun int show_absolute_syms, show_absolute_relocs, show_reloc_info;
22*4882a593Smuzhiyun int as_text, use_real_mode;
23*4882a593Smuzhiyun const char *fname;
24*4882a593Smuzhiyun FILE *fp;
25*4882a593Smuzhiyun int i;
26*4882a593Smuzhiyun unsigned char e_ident[EI_NIDENT];
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun show_absolute_syms = 0;
29*4882a593Smuzhiyun show_absolute_relocs = 0;
30*4882a593Smuzhiyun show_reloc_info = 0;
31*4882a593Smuzhiyun as_text = 0;
32*4882a593Smuzhiyun use_real_mode = 0;
33*4882a593Smuzhiyun fname = NULL;
34*4882a593Smuzhiyun for (i = 1; i < argc; i++) {
35*4882a593Smuzhiyun char *arg = argv[i];
36*4882a593Smuzhiyun if (*arg == '-') {
37*4882a593Smuzhiyun if (strcmp(arg, "--abs-syms") == 0) {
38*4882a593Smuzhiyun show_absolute_syms = 1;
39*4882a593Smuzhiyun continue;
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun if (strcmp(arg, "--abs-relocs") == 0) {
42*4882a593Smuzhiyun show_absolute_relocs = 1;
43*4882a593Smuzhiyun continue;
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun if (strcmp(arg, "--reloc-info") == 0) {
46*4882a593Smuzhiyun show_reloc_info = 1;
47*4882a593Smuzhiyun continue;
48*4882a593Smuzhiyun }
49*4882a593Smuzhiyun if (strcmp(arg, "--text") == 0) {
50*4882a593Smuzhiyun as_text = 1;
51*4882a593Smuzhiyun continue;
52*4882a593Smuzhiyun }
53*4882a593Smuzhiyun if (strcmp(arg, "--realmode") == 0) {
54*4882a593Smuzhiyun use_real_mode = 1;
55*4882a593Smuzhiyun continue;
56*4882a593Smuzhiyun }
57*4882a593Smuzhiyun }
58*4882a593Smuzhiyun else if (!fname) {
59*4882a593Smuzhiyun fname = arg;
60*4882a593Smuzhiyun continue;
61*4882a593Smuzhiyun }
62*4882a593Smuzhiyun usage();
63*4882a593Smuzhiyun }
64*4882a593Smuzhiyun if (!fname) {
65*4882a593Smuzhiyun usage();
66*4882a593Smuzhiyun }
67*4882a593Smuzhiyun fp = fopen(fname, "r");
68*4882a593Smuzhiyun if (!fp) {
69*4882a593Smuzhiyun die("Cannot open %s: %s\n", fname, strerror(errno));
70*4882a593Smuzhiyun }
71*4882a593Smuzhiyun if (fread(&e_ident, 1, EI_NIDENT, fp) != EI_NIDENT) {
72*4882a593Smuzhiyun die("Cannot read %s: %s", fname, strerror(errno));
73*4882a593Smuzhiyun }
74*4882a593Smuzhiyun rewind(fp);
75*4882a593Smuzhiyun if (e_ident[EI_CLASS] == ELFCLASS64)
76*4882a593Smuzhiyun process_64(fp, use_real_mode, as_text,
77*4882a593Smuzhiyun show_absolute_syms, show_absolute_relocs,
78*4882a593Smuzhiyun show_reloc_info);
79*4882a593Smuzhiyun else
80*4882a593Smuzhiyun process_32(fp, use_real_mode, as_text,
81*4882a593Smuzhiyun show_absolute_syms, show_absolute_relocs,
82*4882a593Smuzhiyun show_reloc_info);
83*4882a593Smuzhiyun fclose(fp);
84*4882a593Smuzhiyun return 0;
85*4882a593Smuzhiyun }
86