perf jit: Move clockid validation

Move clockid validation into jit_process() so it can later be made
conditional.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1457005856-6143-6-git-send-email-adrian.hunter@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/tools/perf/util/jitdump.c b/tools/perf/util/jitdump.c
index bd9e44f9fff2..cd272cc21e05 100644
--- a/tools/perf/util/jitdump.c
+++ b/tools/perf/util/jitdump.c
@@ -99,6 +99,21 @@ jit_close(struct jit_buf_desc *jd)
 }
 
 static int
+jit_validate_events(struct perf_session *session)
+{
+        struct perf_evsel *evsel;
+
+        /*
+         * check that all events use CLOCK_MONOTONIC
+         */
+        evlist__for_each(session->evlist, evsel) {
+                if (evsel->attr.use_clockid == 0 || evsel->attr.clockid != CLOCK_MONOTONIC)
+                        return -1;
+        }
+        return 0;
+}
+
+static int
 jit_open(struct jit_buf_desc *jd, const char *name)
 {
         struct jitheader header;
@@ -157,6 +172,14 @@ jit_open(struct jit_buf_desc *jd, const char *name)
                 goto error;
         }
 
+        /*
+         * validate event is using the correct clockid
+         */
+        if (jit_validate_events(jd->session)) {
+                pr_err("error, jitted code must be sampled with perf record -k 1\n");
+                goto error;
+        }
+
         bs = header.total_size - sizeof(header);
 
         if (bs > bsz) {