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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-11 20:02:13 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-11 20:02:13 +0100 |
| commit | 42776163e13a56ea3096edff7a5df95408e80eb4 (patch) | |
| tree | 92f17bb5dadc7261b2d9238244cd8d4cb6c1bfd7 /tools/perf/builtin-top.c | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb... (diff) | |
| parent | perf session: Fix infinite loop in __perf_session__process_events (diff) | |
| download | linux-42776163e13a56ea3096edff7a5df95408e80eb4.tar.xz linux-42776163e13a56ea3096edff7a5df95408e80eb4.zip | |
Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (28 commits)
perf session: Fix infinite loop in __perf_session__process_events
perf evsel: Support perf_evsel__open(cpus > 1 && threads > 1)
perf sched: Use PTHREAD_STACK_MIN to avoid pthread_attr_setstacksize() fail
perf tools: Emit clearer message for sys_perf_event_open ENOENT return
perf stat: better error message for unsupported events
perf sched: Fix allocation result check
perf, x86: P4 PMU - Fix unflagged overflows handling
dynamic debug: Fix build issue with older gcc
tracing: Fix TRACE_EVENT power tracepoint creation
tracing: Fix preempt count leak
tracepoint: Add __rcu annotation
tracing: remove duplicate null-pointer check in skb tracepoint
tracing/trivial: Add missing comma in TRACE_EVENT comment
tracing: Include module.h in define_trace.h
x86: Save rbp in pt_regs on irq entry
x86, dumpstack: Fix unused variable warning
x86, NMI: Clean-up default_do_nmi()
x86, NMI: Allow NMI reason io port (0x61) to be processed on any CPU
x86, NMI: Remove DIE_NMI_IPI
x86, NMI: Add priorities to handlers
...
Diffstat (limited to 'tools/perf/builtin-top.c')
| -rw-r--r-- | tools/perf/builtin-top.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 1e67ab9c7ebc..6ce4042421bd 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1247,6 +1247,8 @@ try_again: die("Permission error - are you root?\n" "\t Consider tweaking" " /proc/sys/kernel/perf_event_paranoid.\n"); + if (err == ENOENT) + die("%s event is not supported. ", event_name(evsel)); /* * If it's cycles then fall back to hrtimer * based cpu-clock-tick sw counter, which |