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authorNamhyung Kim <namhyung.kim@lge.com>2013-04-11 12:25:04 +0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-01-26 17:42:59 +0300
commitcd4ceb63438e9e28299f4352ae7b75d2967a772d (patch)
tree0c1e0fb0dfee28f9f216f4ab5eec2b8a312e2d0f /tools/perf/util/trace-event.h
parent0a87e7bc6c55dd248270ee0ab4212cd0ef8ea04a (diff)
downloadlinux-cd4ceb63438e9e28299f4352ae7b75d2967a772d.tar.xz
perf util: Save pid-cmdline mapping into tracing header
Current trace info data lacks the saved cmdline mapping which is needed for pevent to find out the comm of a task. Add this and bump up the version number so that perf can determine its presence when reading. This is mostly corresponding to trace.dat file version 6, but still lacks 4 byte of number of cpus, and 10 bytes of type string - and I think we don't need those anyway. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jeremy Eder <jeder@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com>, Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> [ Change version test from == to >= ] Link: http://lkml.kernel.org/n/tip-vaooqpxsikxbb3359p0corcb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/trace-event.h')
-rw-r--r--tools/perf/util/trace-event.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index b0af9c81bb0d..1fbc044f9eb0 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -42,6 +42,7 @@ raw_field_value(struct event_format *event, const char *name, void *data);
void parse_proc_kallsyms(struct pevent *pevent, char *file, unsigned int size);
void parse_ftrace_printk(struct pevent *pevent, char *file, unsigned int size);
+void parse_saved_cmdline(struct pevent *pevent, char *file, unsigned int size);
ssize_t trace_report(int fd, struct trace_event *tevent, bool repipe);