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-rw-r--r--modutils/depmod.c50
1 files changed, 42 insertions, 8 deletions
diff --git a/modutils/depmod.c b/modutils/depmod.c
index 5d51ba450..710c3e540 100644
--- a/modutils/depmod.c
+++ b/modutils/depmod.c
@@ -27,7 +27,7 @@ struct globals {
static int fill_lst(const char *modulename, struct stat ATTRIBUTE_UNUSED *sb,
void ATTRIBUTE_UNUSED *data, int ATTRIBUTE_UNUSED depth)
{
- llist_add_to(&G.lst, strdup(modulename));
+ llist_add_to(&G.lst, xstrdup(modulename));
return TRUE;
}
@@ -69,7 +69,7 @@ static int fileAction(const char *fname, struct stat *sb,
break;
len -= ++ptr - the_module;
} while (1);
- deps = depends = strdup (ptr + sizeof("depends=")-1);
+ deps = depends = xstrdup (ptr + sizeof("depends=")-1);
//bb_info_msg(" depends='%s'", depends);
while (*deps) {
llist_t * _lst = G.lst;
@@ -106,18 +106,49 @@ int depmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int depmod_main(int ATTRIBUTE_UNUSED argc, char **argv)
{
int retval = EXIT_SUCCESS;
-// static const char moddir_base[] ALIGN1 = "/lib/modules/%s";
- FILE *filedes = xfopen("/tmp/modules.dep", "w");
+ char *moddir_base, *system_map, *chp;
+ FILE *filedes = stdout;
+ enum {
+ ARG_a = (1<<0), /* All modules, ignore mods in argv */
+ ARG_A = (1<<1), /* Only emit .ko that are newer than modules.dep file */
+ ARG_b = (1<<2), /* not /lib/modules/$(uname -r)/ but this base-dir */
+ ARG_e = (1<<3), /* with -F, print unresolved symbols */
+ ARG_F = (1<<4), /* System.map that contains the symbols */
+ ARG_n = (1<<5) /* dry-run, print to stdout only */
+ };
- argv++;
+ getopt32(argv, "aAb:eF:n", &moddir_base, &system_map);
+ argv += optind;
+ if (*argv) /* got a version to use? */
+ chp = *argv++;
+ else {
+ struct utsname uts;
+ if (uname(&uts) < 0)
+ bb_simple_perror_msg_and_die("uname");
+ chp = xstrdup(uts.release);
+ }
+ moddir_base
+ = concat_path_file(option_mask32 & ARG_b ? moddir_base : "/lib/modules",
+ chp);
+ if (ENABLE_FEATURE_CLEAN_UP)
+ free(chp);
+ if (!(option_mask32 & ARG_n)) {
+ char *modules_dep = concat_path_file(moddir_base, "modules.dep");
+ filedes = xfopen(modules_dep, "w");
+ if (ENABLE_FEATURE_CLEAN_UP)
+ free(modules_dep);
+ }
do {
- if (!recursive_action(*argv,
+ chp = concat_path_file(moddir_base,
+ option_mask32 & ARG_a ? "/" : *argv++);
+
+ if (!recursive_action(chp,
ACTION_RECURSE, /* flags */
fill_lst, /* file action */
NULL, /* dir action */
NULL, /* user data */
0) || /* depth */
- !recursive_action(*argv,
+ !recursive_action(chp,
ACTION_RECURSE, /* flags */
fileAction, /* file action */
NULL, /* dir action */
@@ -125,11 +156,14 @@ int depmod_main(int ATTRIBUTE_UNUSED argc, char **argv)
0)) { /* depth */
retval = EXIT_FAILURE;
}
- } while (*++argv);
+ if (ENABLE_FEATURE_CLEAN_UP)
+ free(chp);
+ } while (!(option_mask32 & ARG_a) || *argv);
if (ENABLE_FEATURE_CLEAN_UP) {
fclose(filedes);
llist_free(G.lst, free);
+ free(moddir_base);
}
return retval;
}