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30e68bcc67
linux/tools/perf
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Namhyung Kim 30e68bcc67 perf evlist: Return first evsel for non-sample event on old kernel 
On old kernels that don't support sample_id_all feature,
perf_evlist__id2evsel() returns NULL for non-sampling events.

This breaks perf top when multiple events are given on command line. Fix
it by using first evsel in the evlist. This will also prevent getting
the same (potential) problem in such new tool/ old kernel combo.

Suggested-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1329702447-25045-1-git-send-email-namhyung.kim@lge.com
Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-02-29 18:29:44 -03:00
..
arch perf/powerpc: Fix build for PowerPC with uclibc toolchains 2011-11-25 14:11:27 +11:00
bench perf tools: Fix perf stack to non executable on x86_64 2012-02-06 18:54:06 -02:00
config perf tools: git mv tools/perf/{features-tests.mak,config/} 2011-04-19 08:18:36 -03:00
Documentation Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-01-15 11:26:35 -08:00
python perf evlist: Store pointer to the cpu and thread maps 2011-01-31 12:40:52 -02:00
scripts perf script: Add drop monitor script 2011-09-29 16:41:37 -03:00
util perf evlist: Return first evsel for non-sample event on old kernel 2012-02-29 18:29:44 -03:00
.gitignore perf tools: Makefile: Remove various and sundry cruft 2011-02-18 07:43:06 -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 options: Type check all the remaining OPT_ variants 2010-05-17 16:22:41 -03:00
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 tools: Rename perf_event_ops to perf_tool 2011-11-28 10:39:28 -02:00
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 report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
builtin-probe.c perf tools: Fix broken build by defining _GNU_SOURCE in Makefile 2012-01-30 22:19:54 -02:00
builtin-record.c perf tools: Unify handling of features when writing feature section 2011-12-23 17:02:22 -02:00
builtin-report.c perf report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
builtin-sched.c perf report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
builtin-script.c perf script: Add missing closedir() calls 2012-01-08 12:35:41 -02:00
builtin-stat.c perf stat: Introduce get_ratio_color() helper 2012-01-03 14:36:32 -02:00
builtin-test.c perf test: Change type of '-v' option to INCR 2012-01-08 13:25:00 -02:00
builtin-timechart.c perf report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
builtin-top.c perf top: Fix number of samples displayed 2012-01-30 22:29:49 -02:00
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
CREDITS
design.txt perf: Fix few typos + cosmetics 2010-01-13 17:39:44 +01:00
Makefile perf tools: Fix broken build by defining _GNU_SOURCE in Makefile 2012-01-30 22:19:54 -02:00
MANIFEST perf tools: Add const.h to MANIFEST to make perf-tar-src-pkg work again 2012-01-06 15:52:18 -02:00
perf-archive.sh perf buildid: add perfconfig option to specify buildid cache dir 2010-06-05 09:34:04 -03:00
perf.c perf tools: Simplify debugfs mountpoint handling code 2011-11-28 10:11:28 -02:00
perf.h perf record: Add ability to record event period 2011-12-20 12:50:09 -02:00