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kmod_module_new_*: improve debugging.

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This commit is contained in:
Gustavo Sverzut Barbieri 2011-12-20 13:04:10 -02:00 committed by Lucas De Marchi
parent 95dd837daf
commit b55df2ee03
1 changed files with 18 additions and 4 deletions
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22
libkmod/libkmod-module.c
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@ -327,16 +327,21 @@ KMOD_EXPORT int kmod_module_new_from_path(struct kmod_ctx *ctx,
return -ENOENT;
abspath = path_make_absolute_cwd(path);
if (abspath == NULL)
if (abspath == NULL) {
DBG(ctx, "no absolute path for %s\n", path);
return -ENOMEM;
}
err = stat(abspath, &st);
if (err < 0) {
err = -errno;
DBG(ctx, "stat %s: %s\n", path, strerror(errno));
free(abspath);
return -errno;
return err;
}
if (path_to_modname(path, name, &namelen) == NULL) {
DBG(ctx, "could not get modname from path %s\n", path);
free(abspath);
return -ENOENT;
}
@ -477,29 +482,38 @@ KMOD_EXPORT int kmod_module_new_from_lookup(struct kmod_ctx *ctx,
return -ENOSYS;
}
if (alias_normalize(given_alias, alias, NULL) < 0)
if (alias_normalize(given_alias, alias, NULL) < 0) {
DBG(ctx, "invalid alias: %s\n", given_alias);
return -EINVAL;
}
DBG(ctx, "input alias=%s, normalized=%s\n", given_alias, alias);
/* Aliases from config file override all the others */
err = kmod_lookup_alias_from_config(ctx, alias, list);
CHECK_ERR_AND_FINISH(err, fail, list, finish);
DBG(ctx, "lookup modules.dep %s\n", alias);
err = kmod_lookup_alias_from_moddep_file(ctx, alias, list);
CHECK_ERR_AND_FINISH(err, fail, list, finish);
DBG(ctx, "lookup modules.symbols %s\n", alias);
err = kmod_lookup_alias_from_symbols_file(ctx, alias, list);
CHECK_ERR_AND_FINISH(err, fail, list, finish);
DBG(ctx, "lookup install and remove commands %s\n", alias);
err = kmod_lookup_alias_from_commands(ctx, alias, list);
CHECK_ERR_AND_FINISH(err, fail, list, finish);
DBG(ctx, "lookup modules.aliases %s\n", alias);
err = kmod_lookup_alias_from_aliases_file(ctx, alias, list);
CHECK_ERR_AND_FINISH(err, fail, list, finish);
finish:
DBG(ctx, "lookup %s=%d, list=%p\n", alias, err, *list);
return err;
fail:
DBG(ctx, "Failed to lookup %s\n", alias);
kmod_module_unref_list(*list);
*list = NULL;
return err;