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authorAdrian Hunter <adrian.hunter@intel.com>2014-07-23 23:19:57 +0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-07-24 00:00:46 +0400
commit6f917c70998d22bda6d06cb168665068c6066cd4 (patch)
treee95c8197436a12a45f7a02dd40cfcfa755d51a08 /tools
parent2a03068c5cfa104768703cbefa2e23a6353f8de5 (diff)
downloadlinux-6f917c70998d22bda6d06cb168665068c6066cd4.tar.xz
perf session: Add ability to 'skip' a non-piped event stream
A piped event stream may contain arbitary sized tracepoint information following a PERF_RECORD_HEADER_TRACING_DATA event. The position in the stream has to be 'skipped' to match the start of the next event. Provide the same ability to a non-piped event stream to allow for Instruction Trace data that may also be in a non-piped event stream. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1406143198-20732-1-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/util/session.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index eac14ce0ae8d..f4399b2087c4 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1284,6 +1284,7 @@ int __perf_session__process_events(struct perf_session *session,
union perf_event *event;
uint32_t size;
struct ui_progress prog;
+ int skip;
perf_tool__fill_defaults(tool);
@@ -1344,7 +1345,8 @@ more:
size = event->header.size;
if (size < sizeof(struct perf_event_header) ||
- perf_session__process_event(session, event, tool, file_pos) < 0) {
+ (skip = perf_session__process_event(session, event, tool, file_pos))
+ < 0) {
pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
file_offset + head, event->header.size,
event->header.type);
@@ -1352,6 +1354,9 @@ more:
goto out_err;
}
+ if (skip)
+ size += skip;
+
head += size;
file_pos += size;