int SHOW_MODULE_INFO(const char *filename, const char *fmtstr)
{
int fp;
struct obj_file *f;
/* Locate the file to be loaded. */
if (!strchr(filename, '/') && !strchr(filename, '.')) {
char *tmp = search_module_path(filename);
if (tmp == NULL) {
error("%s: no module by that name found", filename);
return 1;
}
filename = tmp;
}
error_file = filename;
/* Attempt to open and parse the module file. */
if ((fp = gzf_open(filename, O_RDONLY)) < 0) {
error("%s: %m", filename);
return -1;
} else if ((f = obj_load(fp, ET_REL, filename)) == NULL)
return -1;
gzf_close(fp);
format_query_string(f, fmtstr);
return 0;
}
int KALLSYMS_MAIN (int argc, char **argv)
{
struct option long_opts[] = {
{"version", 0, 0, 'V'},
{"help", 0, 0, 'h'},
{0, 0, 0, 0}
};
char *filename = NULL;
int fp;
struct obj_file *fin, *fout;
int i, c;
error_file = "kallsyms";
/* To handle repeated calls from combined modprobe */
errors = optind = 0;
/* Process the command line. */
while ((c = getopt_long(argc, argv, "Vh",
&long_opts[0], NULL)) != EOF)
switch (c) {
case 'V':
fputs("kallsyms version " MODUTILS_VERSION "\n", stderr);
return(0);
case 'h': /* Print the usage message. */
kallsyms_usage();
return(0);
default:
kallsyms_usage();
return(1);
}
if (optind != argc-1) {
kallsyms_usage();
return(1);
}
filename = argv[optind++];
error_file = filename;
if ((fp = gzf_open(filename, O_RDONLY)) < 0) {
error("%s: %m", filename);
return 1;
}
if ((fin = obj_load(fp, ET_EXEC, filename)) == NULL) {
gzf_close(fp);
return 1;
}
gzf_close(fp);
error_file = "kallsyms";
if (obj_kallsyms(fin, &fout))
return 1;
/* Write the extracted data */
fwrite(&fout->header, sizeof(fout->header), 1, stdout);
for (i = 0; i < fout->header.e_shnum; ++i)
fwrite(&fout->sections[i]->header, fout->header.e_shentsize, 1, stdout);
for (i = 0; i < fout->header.e_shnum; ++i) {
if (fout->sections[i]->header.sh_size) {
fseek(stdout, fout->sections[i]->header.sh_offset, SEEK_SET);
fwrite(fout->sections[i]->contents,
fout->sections[i]->header.sh_size, 1, stdout);
}
}
return 0;
}
