linux/tools/perf
David Ahern 20d23aaa31 perf stat: handle ENXIO error for perf_event_open
perf stat on PPC currently fails to run:

$ perf stat -- sleep 1
  Error: open_counter returned with 6 (No such device or address). /bin/dmesg may provide additional information.

  Fatal: Not all events could be opened.

The problem is that until 2.6.37 (behavior changed with commit b0a873e)
perf on PPC returns ENXIO when hw_perf_event_init() fails. With this
patch we get the expected behavior:

$ perf stat -v -- sleep 1
cycles event is not supported by the kernel.
stalled-cycles-frontend event is not supported by the kernel.
stalled-cycles-backend event is not supported by the kernel.
instructions event is not supported by the kernel.
branches event is not supported by the kernel.
branch-misses event is not supported by the kernel.

...

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1336490956-57145-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-05-09 14:14:41 -03:00
..
Documentation perf report: Add a simple GTK2-based 'perf report' browser 2012-03-19 15:13:29 -03:00
arch perf tools: Use scnprintf where applicable 2012-03-14 12:36:19 -03:00
bench perf tool: Fix perf stack to non executable on x86_64 2012-02-06 19:14:17 -02:00
config perf report: Add a simple GTK2-based 'perf report' browser 2012-03-19 15:13:29 -03:00
python perf python: Use attr.watermark in twatch.py 2012-01-30 18:38:23 -02:00
scripts perf script: Add drop monitor script 2011-09-29 16:41:37 -03:00
util perf build-id: Fix filename size calculation 2012-05-01 14:13:00 -03:00
.gitignore perf tools: Ignore auto-generated bison/flex files 2012-04-14 13:50:39 -03:00
CREDITS perf_counter tools: Add CREDITS file for Git contributors 2009-06-24 19:54:29 +02:00
MANIFEST perf tools: Fix out of tree compiles 2012-02-13 22:46:41 -02:00
Makefile perf: Turn off compiler warnings for flex and bison generated files 2012-05-07 10:03:01 +02:00
builtin-annotate.c perf annotate: Get rid of field_sep check 2012-01-08 13:29:34 -02:00
builtin-bench.c perf bench: Also allow measuring memset() 2012-01-24 20:25:32 -02:00
builtin-buildid-cache.c perf buildid: add perfconfig option to specify buildid cache dir 2010-06-05 09:34:04 -03:00
builtin-buildid-list.c perf report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
builtin-diff.c perf diff: Fix to work with new hists design 2012-03-22 15:12:09 -03:00
builtin-evlist.c perf report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
builtin-help.c perf options: Type check all the remaining OPT_ variants 2010-05-17 16:22:41 -03:00
builtin-inject.c perf tools: Rename perf_event_ops to perf_tool 2011-11-28 10:39:28 -02:00
builtin-kmem.c perf kmem: Fix a memory leak 2012-01-08 13:27:54 -02:00
builtin-kvm.c perf kvm: Do guest-only counting by default 2012-01-06 15:47:37 -02:00
builtin-list.c perf list: Allow filtering list of events 2011-02-17 15:38:58 -02:00
builtin-lock.c perf lock: Document lock info subcommand 2012-01-30 18:30:48 -02:00
builtin-probe.c perf probe: Rename target_module to target 2012-02-02 17:39:15 -02:00
builtin-record.c perf record: Add HEADER_BRANCH_STACK tag 2012-03-09 08:26:08 +01:00
builtin-report.c perf report: Fix crash showing warning related to kernel maps 2012-04-16 11:18:22 -03:00
builtin-sched.c perf tools: Fix getrusage() related build failure on glibc trunk 2012-04-04 11:59:00 +02:00
builtin-script.c perf script: Add option resolving vmlinux path 2012-01-30 18:13:07 -02:00
builtin-stat.c perf stat: handle ENXIO error for perf_event_open 2012-05-09 14:14:41 -03:00
builtin-test.c perf tools: Add 'G' and 'H' modifiers to event parsing 2012-04-17 11:20:23 -03:00
builtin-timechart.c perf report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
builtin-top.c perf annotate: Validate addr in symbol__inc_addr_samples 2012-04-05 19:51:14 -03:00
builtin.h perf tools: Make perf.data more self-descriptive (v8) 2011-10-07 17:01:24 -03:00
command-list.txt perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
design.txt perf: Fix few typos + cosmetics 2010-01-13 17:39:44 +01:00
perf-archive.sh perf archive: Correct cutting of symbolic link 2012-04-14 13:52:15 -03:00
perf.c perf tools: Simplify debugfs mountpoint handling code 2011-11-28 10:11:28 -02:00
perf.h Merge branch 'perf/urgent' into perf/core 2012-03-22 15:09:08 -03:00