Show SDT events by perf-list as below.
----
# perf list sdt | head -n 7
List of pre-defined events (to be used in -e):
sdt_libc:lll_futex_wake [SDT event]
sdt_libc:lll_lock_wait_private [SDT event]
sdt_libc:longjmp [SDT event]
sdt_libc:longjmp_target [SDT event]
----
Signed-off-by: Masami Hiramatsu <[email protected]>
---
tools/perf/builtin-list.c | 3 +
tools/perf/util/parse-events.c | 83 ++++++++++++++++++++++++++++++++++++++++
tools/perf/util/parse-events.h | 2 +
3 files changed, 88 insertions(+)
diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index af5bd05..85331e1 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -60,6 +60,8 @@ int cmd_list(int argc, const char **argv, const char *prefix
__maybe_unused)
print_hwcache_events(NULL, raw_dump);
else if (strcmp(argv[i], "pmu") == 0)
print_pmu_events(NULL, raw_dump);
+ else if (strcmp(argv[i], "sdt") == 0)
+ print_sdt_events(NULL, NULL, raw_dump);
else {
char *sep = strchr(argv[i], ':'), *s;
int sep_idx;
@@ -75,6 +77,7 @@ int cmd_list(int argc, const char **argv, const char *prefix
__maybe_unused)
s[sep_idx] = '\0';
print_tracepoint_events(s, s + sep_idx + 1, raw_dump);
+ print_sdt_events(s, s + sep_idx + 1, raw_dump);
free(s);
}
}
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index d826e6f..485dbdc 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -5,6 +5,7 @@
#include "evsel.h"
#include "parse-options.h"
#include "parse-events.h"
+#include "probe-file.h"
#include "exec_cmd.h"
#include "string.h"
#include "symbol.h"
@@ -1519,6 +1520,86 @@ static bool is_event_supported(u8 type, unsigned config)
return ret;
}
+void print_sdt_events(const char *subsys_glob, const char *event_glob,
+ bool name_only)
+{
+ struct probe_cache *pcache;
+ struct probe_cache_entry *ent;
+ struct strlist *bidlist, *sdtlist;
+ struct strlist_config cfg = {.dont_dupstr = true};
+ struct str_node *nd, *nd2;
+ char *buf, *path, *ptr = NULL;
+ bool show_detail = false;
+ int ret;
+
+ sdtlist = strlist__new(NULL, &cfg);
+ if (!sdtlist) {
+ pr_debug("Failed to allocate new strlist for SDT\n");
+ return;
+ }
+ ret = build_id_cache__list_all(&bidlist);
+ if (ret < 0) {
+ pr_debug("Failed to get buildids: %d\n", ret);
+ return;
+ }
+ strlist__for_each(nd, bidlist) {
+ pcache = probe_cache__new(nd->s);
+ if (!pcache)
+ continue;
+ if (!list_empty(&pcache->list))
+ list_for_each_entry(ent, &pcache->list, list) {
+ if (!ent->sdt)
+ continue;
+ if (subsys_glob &&
+ !strglobmatch(ent->pev.group, subsys_glob))
+ continue;
+ if (event_glob &&
+ !strglobmatch(ent->pev.event, event_glob))
+ continue;
+ ret = asprintf(&buf, "%s:%s@%s", ent->pev.group,
+ ent->pev.event, nd->s);
+ if (ret > 0)
+ strlist__add(sdtlist, buf);
+ }
+ probe_cache__delete(pcache);
+ }
+ strlist__delete(bidlist);
+
+ strlist__for_each(nd, sdtlist) {
+ buf = strchr(nd->s, '@');
+ if (buf)
+ *buf = '\0';
+ if (name_only) {
+ printf("%s ", nd->s);
+ continue;
+ }
+ nd2 = strlist__next(nd);
+ if (nd2) {
+ ptr = strchr(nd2->s, '@');
+ if (ptr)
+ *ptr = '\0';
+ if (strcmp(nd->s, nd2->s) == 0)
+ show_detail = true;
+ }
+ if (show_detail) {
+ path = build_id_cache__origname(buf + 1);
+ ret = asprintf(&buf, "%s@%s@0x%.12s", nd->s, path, buf
+ 1);
+ if (ret > 0) {
+ printf(" %-50s [%s]\n", buf, "SDT event");
+ free(buf);
+ }
+ } else
+ printf(" %-50s [%s]\n", nd->s, "SDT event");
+ if (nd2) {
+ if (strcmp(nd->s, nd2->s) != 0)
+ show_detail = false;
+ if (ptr)
+ *ptr = '@';
+ }
+ }
+ strlist__delete(sdtlist);
+}
+
int print_hwcache_events(const char *event_glob, bool name_only)
{
unsigned int type, op, i, evt_i = 0, evt_num = 0;
@@ -1700,6 +1781,8 @@ void print_events(const char *event_glob, bool name_only)
}
print_tracepoint_events(NULL, NULL, name_only);
+
+ print_sdt_events(NULL, NULL, name_only);
}
int parse_events__is_hardcoded_term(struct parse_events_term *term)
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index a09b0e2..5dc631d 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -151,6 +151,8 @@ void print_symbol_events(const char *event_glob, unsigned
type,
bool name_only);
void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
bool name_only);
+void print_sdt_events(const char *subsys_glob, const char *event_glob,
+ bool name_only);
int print_hwcache_events(const char *event_glob, bool name_only);
extern int is_valid_tracepoint(const char *event_string);
--
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