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authorArnaldo Carvalho de Melo <acme@redhat.com>2009-12-28 00:37:01 +0100
committerIngo Molnar <mingo@elte.hu>2009-12-28 09:03:33 +0100
commit27295592c22e71bbd38110c302da8dbb43912a60 (patch)
tree01442f9b788e3b0a01bc29e22a0e799e1c45c91d /tools/perf/util/session.c
parentperf tools: Move the map class definition to a separate header (diff)
downloadlinux-27295592c22e71bbd38110c302da8dbb43912a60.tar.xz
linux-27295592c22e71bbd38110c302da8dbb43912a60.zip
perf session: Share the common trace sample_check routine as perf_session__has_traces
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1261957026-15580-5-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util/session.c')
-rw-r--r--tools/perf/util/session.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 736d4fda9272..60eab8b3ff34 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -393,3 +393,14 @@ done:
out_err:
return err;
}
+
+int perf_session__has_traces(struct perf_session *self)
+{
+ if (!(self->sample_type & PERF_SAMPLE_RAW)) {
+ pr_err("No trace sample to read. Did you call perf record "
+ "without -R?");
+ return -1;
+ }
+
+ return 0;
+}