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| author | Robert Richter <robert.richter@amd.com> | 2011-12-07 13:02:54 +0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-12-23 23:01:03 +0400 |
| commit | efad14150a0b4429f37da7245001a8096ef7ee38 (patch) | |
| tree | 61c41a83384266dca00a2a4c88f43ebf4bdf5b5e /tools/perf/builtin-timechart.c | |
| parent | 1b5495043d5bc058def21f9b66fd8feaa794eb44 (diff) | |
| download | linux-efad14150a0b4429f37da7245001a8096ef7ee38.tar.xz | |
perf report: Accept fifos as input file
The default input file for perf report is not handled the same way as
perf record does it for its output file. This leads to unexpected
behavior of perf report, etc. E.g.:
# perf record -a -e cpu-cycles sleep 2 | perf report | cat
failed to open perf.data: No such file or directory (try 'perf record' first)
While perf record writes to a fifo, perf report expects perf.data to be
read. This patch changes this to accept fifos as input file.
Applies to the following commands:
perf annotate
perf buildid-list
perf evlist
perf kmem
perf lock
perf report
perf sched
perf script
perf timechart
Also fixes char const* -> const char* type declaration for filename
strings.
v2:
* Prevent potential null pointer access to input_name in
builtin-report.c. Needed due to removal of patch "perf report: Setup
browser if stdout is a pipe"
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1323248577-11268-5-git-send-email-robert.richter@amd.com
Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-timechart.c')
| -rw-r--r-- | tools/perf/builtin-timechart.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c index 135376a37f97..3b75b2e21ea5 100644 --- a/tools/perf/builtin-timechart.c +++ b/tools/perf/builtin-timechart.c @@ -38,8 +38,8 @@ #define PWR_EVENT_EXIT -1 -static char const *input_name = "perf.data"; -static char const *output_name = "output.svg"; +static const char *input_name; +static const char *output_name = "output.svg"; static unsigned int numcpus; static u64 min_freq; /* Lowest CPU frequency seen */ |