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| author | Arnaldo Carvalho de Melo | 2013-10-17 17:07:58 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2013-10-17 19:35:20 +0200 |
| commit | 6ef068cb8e77784431b6c80adc49d0b0a6a5df66 (patch) | |
| tree | 8fa200b1faf042d580cd290c36a8d2e179043acf /tools/perf/builtin-trace.c | |
| parent | perf trace: Improve event processing exit (diff) | |
| download | kernel-qcow2-linux-6ef068cb8e77784431b6c80adc49d0b0a6a5df66.tar.gz kernel-qcow2-linux-6ef068cb8e77784431b6c80adc49d0b0a6a5df66.tar.xz kernel-qcow2-linux-6ef068cb8e77784431b6c80adc49d0b0a6a5df66.zip | |
perf evlist: Introduce perf_evlist__strerror_tp method
Out of 'perf trace', should be used by other tools that uses
tracepoints.
Cc: 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: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-lyvtxhchz4ga8fwht15x8wou@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-trace.c')
| -rw-r--r-- | tools/perf/builtin-trace.c | 26 |
1 files changed, 5 insertions, 21 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index ec8289570f4f..78b0d6a5fdff 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -1814,27 +1814,11 @@ out: trace->live = false; return err; out_error_tp: - switch(errno) { - case ENOENT: - fputs("Error:\tUnable to find debugfs\n" - "Hint:\tWas your kernel was compiled with debugfs support?\n" - "Hint:\tIs the debugfs filesystem mounted?\n" - "Hint:\tTry 'sudo mount -t debugfs nodev /sys/kernel/debug'\n", - trace->output); - break; - case EACCES: - fprintf(trace->output, - "Error:\tNo permissions to read %s/tracing/events/raw_syscalls\n" - "Hint:\tTry 'sudo mount -o remount,mode=755 %s'\n", - debugfs_mountpoint, debugfs_mountpoint); - break; - default: { - char bf[256]; - fprintf(trace->output, "Can't trace: %s\n", - strerror_r(errno, bf, sizeof(bf))); - } - break; - } +{ + char errbuf[BUFSIZ]; + perf_evlist__strerror_tp(evlist, errno, errbuf, sizeof(errbuf)); + fprintf(trace->output, "%s\n", errbuf); +} goto out_delete_evlist; } |