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Diffstat (limited to 'tools/perf/util/config.c')
-rw-r--r--tools/perf/util/config.c160
1 files changed, 107 insertions, 53 deletions
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index dad7d8272168..18dae745034f 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -26,6 +26,7 @@ static FILE *config_file;
static const char *config_file_name;
static int config_linenr;
static int config_file_eof;
+static struct perf_config_set *config_set;
const char *config_exclusive_filename;
@@ -275,7 +276,8 @@ static int perf_parse_file(config_fn_t fn, void *data)
break;
}
}
- die("bad config file line %d in %s", config_linenr, config_file_name);
+ pr_err("bad config file line %d in %s\n", config_linenr, config_file_name);
+ return -1;
}
static int parse_unit_factor(const char *end, unsigned long *val)
@@ -371,7 +373,7 @@ int perf_config_bool(const char *name, const char *value)
return !!perf_config_bool_or_int(name, value, &discard);
}
-const char *perf_config_dirname(const char *name, const char *value)
+static const char *perf_config_dirname(const char *name, const char *value)
{
if (!name)
return NULL;
@@ -477,54 +479,6 @@ static int perf_config_global(void)
return !perf_env_bool("PERF_CONFIG_NOGLOBAL", 0);
}
-int perf_config(config_fn_t fn, void *data)
-{
- int ret = 0, found = 0;
- const char *home = NULL;
-
- /* Setting $PERF_CONFIG makes perf read _only_ the given config file. */
- if (config_exclusive_filename)
- return perf_config_from_file(fn, config_exclusive_filename, data);
- if (perf_config_system() && !access(perf_etc_perfconfig(), R_OK)) {
- ret += perf_config_from_file(fn, perf_etc_perfconfig(),
- data);
- found += 1;
- }
-
- home = getenv("HOME");
- if (perf_config_global() && home) {
- char *user_config = strdup(mkpath("%s/.perfconfig", home));
- struct stat st;
-
- if (user_config == NULL) {
- warning("Not enough memory to process %s/.perfconfig, "
- "ignoring it.", home);
- goto out;
- }
-
- if (stat(user_config, &st) < 0)
- goto out_free;
-
- if (st.st_uid && (st.st_uid != geteuid())) {
- warning("File %s not owned by current user or root, "
- "ignoring it.", user_config);
- goto out_free;
- }
-
- if (!st.st_size)
- goto out_free;
-
- ret += perf_config_from_file(fn, user_config, data);
- found += 1;
-out_free:
- free(user_config);
- }
-out:
- if (found == 0)
- return -1;
- return ret;
-}
-
static struct perf_config_section *find_section(struct list_head *sections,
const char *section_name)
{
@@ -609,8 +563,12 @@ static int collect_config(const char *var, const char *value,
struct perf_config_section *section = NULL;
struct perf_config_item *item = NULL;
struct perf_config_set *set = perf_config_set;
- struct list_head *sections = &set->sections;
+ struct list_head *sections;
+
+ if (set == NULL)
+ return -1;
+ sections = &set->sections;
key = ptr = strdup(var);
if (!key) {
pr_debug("%s: strdup failed\n", __func__);
@@ -641,22 +599,115 @@ static int collect_config(const char *var, const char *value,
out_free:
free(key);
- perf_config_set__delete(set);
return -1;
}
+static int perf_config_set__init(struct perf_config_set *set)
+{
+ int ret = -1;
+ const char *home = NULL;
+
+ /* Setting $PERF_CONFIG makes perf read _only_ the given config file. */
+ if (config_exclusive_filename)
+ return perf_config_from_file(collect_config, config_exclusive_filename, set);
+ if (perf_config_system() && !access(perf_etc_perfconfig(), R_OK)) {
+ if (perf_config_from_file(collect_config, perf_etc_perfconfig(), set) < 0)
+ goto out;
+ }
+
+ home = getenv("HOME");
+ if (perf_config_global() && home) {
+ char *user_config = strdup(mkpath("%s/.perfconfig", home));
+ struct stat st;
+
+ if (user_config == NULL) {
+ warning("Not enough memory to process %s/.perfconfig, "
+ "ignoring it.", home);
+ goto out;
+ }
+
+ if (stat(user_config, &st) < 0)
+ goto out_free;
+
+ if (st.st_uid && (st.st_uid != geteuid())) {
+ warning("File %s not owned by current user or root, "
+ "ignoring it.", user_config);
+ goto out_free;
+ }
+
+ if (!st.st_size)
+ goto out_free;
+
+ ret = perf_config_from_file(collect_config, user_config, set);
+
+out_free:
+ free(user_config);
+ }
+out:
+ return ret;
+}
+
struct perf_config_set *perf_config_set__new(void)
{
struct perf_config_set *set = zalloc(sizeof(*set));
if (set) {
INIT_LIST_HEAD(&set->sections);
- perf_config(collect_config, set);
+ if (perf_config_set__init(set) < 0) {
+ perf_config_set__delete(set);
+ set = NULL;
+ }
}
return set;
}
+int perf_config(config_fn_t fn, void *data)
+{
+ int ret = 0;
+ char key[BUFSIZ];
+ struct perf_config_section *section;
+ struct perf_config_item *item;
+
+ if (config_set == NULL)
+ return -1;
+
+ perf_config_set__for_each_entry(config_set, section, item) {
+ char *value = item->value;
+
+ if (value) {
+ scnprintf(key, sizeof(key), "%s.%s",
+ section->name, item->name);
+ ret = fn(key, value, data);
+ if (ret < 0) {
+ pr_err("Error: wrong config key-value pair %s=%s\n",
+ key, value);
+ break;
+ }
+ }
+ }
+
+ return ret;
+}
+
+void perf_config__init(void)
+{
+ if (config_set == NULL)
+ config_set = perf_config_set__new();
+}
+
+void perf_config__exit(void)
+{
+ perf_config_set__delete(config_set);
+ config_set = NULL;
+}
+
+void perf_config__refresh(void)
+{
+ perf_config__exit();
+ perf_config__init();
+}
+
static void perf_config_item__delete(struct perf_config_item *item)
{
zfree(&item->name);
@@ -693,6 +744,9 @@ static void perf_config_set__purge(struct perf_config_set *set)
void perf_config_set__delete(struct perf_config_set *set)
{
+ if (set == NULL)
+ return;
+
perf_config_set__purge(set);
free(set);
}