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
..
arch	perf tools: Use scnprintf where applicable	2012-03-14 12:36:19 -03:00
bench
config	perf report: Add a simple GTK2-based 'perf report' browser	2012-03-19 15:13:29 -03:00
Documentation	perf report: Add a simple GTK2-based 'perf report' browser	2012-03-19 15:13:29 -03:00
python
scripts
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
builtin-annotate.c
builtin-bench.c
builtin-buildid-cache.c
builtin-buildid-list.c
builtin-diff.c	perf diff: Fix to work with new hists design	2012-03-22 15:12:09 -03:00
builtin-evlist.c
builtin-help.c
builtin-inject.c
builtin-kmem.c
builtin-kvm.c
builtin-list.c
builtin-lock.c
builtin-probe.c
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
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
builtin-top.c	perf annotate: Validate addr in symbol__inc_addr_samples	2012-04-05 19:51:14 -03:00
builtin.h
command-list.txt
CREDITS
design.txt
Makefile	perf: Turn off compiler warnings for flex and bison generated files	2012-05-07 10:03:01 +02:00
MANIFEST
perf-archive.sh	perf archive: Correct cutting of symbolic link	2012-04-14 13:52:15 -03:00
perf.c
perf.h	Merge branch 'perf/urgent' into perf/core	2012-03-22 15:09:08 -03:00