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41c21a6830
linux/tools/perf/util
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Namhyung Kim 41c21a6830 perf evlist: Restore original errno after open failed 
If perf_evsel__open() failed, the errno was set and returned properly.

However since the perf_evlist__open() called close() on fd's for all of
evsel x cpu x thread after the failure, the errno was overridden by
other code (EBADF). So the caller of the function ended up seeing
different error message and getting confused.

Fit it by restoring original return value. Because one of caller of the
function is in the python extension, and it uses system errno
internally, it'd be better restoring the original value rather than
using the return value of the function directly, IMHO (i.e. I'm not a
python expert :)

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/1329966816-23175-1-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>
2012-03-05 10:15:49 -03:00
..
include perf tools: Add bitmap_or function into bitmap object 2012-02-13 23:28:10 -02:00
scripting-engines perf tools: Remove unnecessary ctype.h inclusion 2012-01-30 18:37:35 -02:00
ui perf tools: Fix broken build by defining _GNU_SOURCE in Makefile 2012-01-30 22:19:54 -02:00
abspath.c
alias.c
annotate.c perf tools: Fix truncated annotation 2011-12-23 16:39:19 -02:00
annotate.h perf symbols: Add nr_events to symbol_conf 2011-11-28 10:37:11 -02:00
bitmap.c perf tools: Add bitmap_or function into bitmap object 2012-02-13 23:28:10 -02:00
build-id.c perf tools: Rename perf_event_ops to perf_tool 2011-11-28 10:39:28 -02:00
build-id.h perf tools: Rename perf_event_ops to perf_tool 2011-11-28 10:39:28 -02:00
cache.h
callchain.c
callchain.h perf tools: Pass tool context in the the perf_event_ops functions 2011-11-28 10:38:56 -02:00
cgroup.c perf tools: Eliminate duplicate code and use PATH_MAX consistently 2011-11-28 10:11:04 -02:00
cgroup.h
color.c perf stat: Add -o and --append options 2011-08-18 07:46:13 -03:00
color.h
config.c perf tools: Remove stale git headlines from top comment 2011-12-20 13:43:36 -02:00
cpumap.c perf tools: Add fprintf methods for thread_map and cpu_map classes 2012-01-24 19:46:48 -02:00
cpumap.h perf tools: Add fprintf methods for thread_map and cpu_map classes 2012-01-24 19:46:48 -02:00
ctype.c perf tools: ctype.c only wants util.h 2012-02-13 23:17:40 -02:00
debug.c perf ui browser: Handle K_RESIZE in dialog windows 2011-10-26 13:15:07 -02:00
debug.h perf ui browser: Handle K_RESIZE in dialog windows 2011-10-26 13:15:07 -02:00
debugfs.c perf tools: Remove unused functions from debugfs object 2012-02-13 23:25:38 -02:00
debugfs.h perf tools: Remove unused functions from debugfs object 2012-02-13 23:25:38 -02:00
dwarf-aux.c perf probe: Filter out redundant inline-instances 2011-08-12 09:34:35 -03:00
dwarf-aux.h perf probe: Search concrete out-of-line instances 2011-08-12 09:32:10 -03:00
environment.c
event.c perf tools: Ensure comm string is properly terminated 2012-02-29 18:29:45 -03:00
event.h perf tools: Add ability to synthesize event according to a sample 2011-12-12 08:44:00 -02:00
evlist.c perf evlist: Restore original errno after open failed 2012-03-05 10:15:49 -03:00
evlist.h perf tools: Allow multiple threads or processes in record, stat, top 2012-02-13 22:54:11 -02:00
evsel.c perf tools: Invert the sample_id_all logic 2012-02-14 14:18:57 -02:00
evsel.h perf tools: Save some loops using perf_evlist__id2evsel 2011-11-28 17:57:40 -02:00
exec_cmd.c perf tools: Makefile: Remove various and sundry cruft 2011-02-18 07:43:06 -02:00
exec_cmd.h
generate-cmdlist.sh
header.c perf tools: Factor out feature op to process header sections 2012-02-13 23:33:36 -02:00
header.h perf record: Make feature initialization generic 2012-02-02 17:41:17 -02:00
help.c
help.h
hist.c perf report: Fix --stdio output alignment when --showcpuutilization used 2012-01-08 13:32:51 -02:00
hist.h perf top: Don't process samples with no valid machine object 2012-02-13 22:55:58 -02:00
hweight.c
levenshtein.c
levenshtein.h
map.c perf script: Add option resolving vmlinux path 2012-01-30 18:13:07 -02:00
map.h perf script: Unify the expressions indicating "unknown" 2012-01-30 17:57:57 -02:00
pager.c
parse-events.c perf tools: Add support for guest/host-only profiling 2012-01-06 15:49:49 -02:00
parse-events.h perf tools: Simplify debugfs mountpoint handling code 2011-11-28 10:11:28 -02:00
parse-options.c
parse-options.h
path.c
PERF-VERSION-GEN perf: clear out make flags when calling kernel make kernelver 2011-06-15 22:12:55 +02:00
probe-event.c Merge branch 'perf/urgent' into perf/core 2012-03-05 09:20:08 +01:00
probe-event.h perf probe: Add probed module in front of function 2011-07-15 16:19:08 -04:00
probe-finder.c Merge branch 'perf/urgent' into perf/core 2012-03-05 09:20:08 +01:00
probe-finder.h perf tools: Eliminate duplicate code and use PATH_MAX consistently 2011-11-28 10:11:04 -02:00
pstack.c
pstack.h
python-ext-sources perf tools: Allow multiple threads or processes in record, stat, top 2012-02-13 22:54:11 -02:00
python.c perf tools: Introduce per user view 2012-01-24 19:47:37 -02:00
quote.c
quote.h
run-command.c
run-command.h
session.c perf top: Don't process samples with no valid machine object 2012-02-13 22:55:58 -02:00
session.h perf script: Add the offset field specifier 2012-01-30 18:09:21 -02:00
setup.py perf tools: Fix build dependency of perf python extension 2012-02-13 18:01:25 -02:00
sigchain.c
sigchain.h
sort.c perf hists browser: Elide DSO column when it is set to just one DSO, ditto for threads 2011-10-20 08:02:30 -02:00
sort.h perf hists: Don't free decayed entries if in the annotation browser 2011-10-13 08:01:33 -03:00
strbuf.c
strbuf.h
strfilter.c perf: Fix missing strndup declaration 2011-03-04 01:17:18 +01:00
strfilter.h
string.c perf probe: Move strtailcmp to string.c 2011-07-15 16:00:47 -04:00
strlist.c
strlist.h
svghelper.c perf timechart: Fix black idle boxes in the title 2011-02-28 08:56:14 +01:00
svghelper.h
symbol.c perf tools: Get rid of ctype.h in symbol.c 2012-02-13 23:22:50 -02:00
symbol.h perf script: Add option resolving vmlinux path 2012-01-30 18:13:07 -02:00
sysfs.c perf tools: Add sysfs mountpoint interface 2012-02-13 23:27:15 -02:00
sysfs.h perf tools: Add sysfs mountpoint interface 2012-02-13 23:27:15 -02:00
thread_map.c perf tools: fix broken perf record -a mode 2012-02-21 15:05:43 -02:00
thread_map.h perf tools: Allow multiple threads or processes in record, stat, top 2012-02-13 22:54:11 -02:00
thread.c perf session: Move threads to struct machine 2011-11-28 10:35:31 -02:00
thread.h perf tools: Resolve machine earlier and pass it to perf_event_ops 2011-11-28 10:39:12 -02:00
tool.h perf tools: Save some loops using perf_evlist__id2evsel 2011-11-28 17:57:40 -02:00
top.c perf tools: Allow multiple threads or processes in record, stat, top 2012-02-13 22:54:11 -02:00
top.h perf tools: Handle kernels that don't support attr.exclude_{guest,host} 2012-03-03 12:19:56 -03:00
trace-event-info.c perf tools: Fix compile error on x86_64 Ubuntu 2012-01-08 13:34:55 -02:00
trace-event-parse.c perf tools: Allow expressions in __print_symbolic() fields 2012-02-17 16:34:08 -02:00
trace-event-read.c perf tools: Remove unnecessary ctype.h inclusion 2012-01-30 18:37:35 -02:00
trace-event-scripting.c perf tools: Remove unnecessary ctype.h inclusion 2012-01-30 18:37:35 -02:00
trace-event.h perf tools: Resolve machine earlier and pass it to perf_event_ops 2011-11-28 10:39:12 -02:00
types.h
usage.c perf tools: Allow multiple threads or processes in record, stat, top 2012-02-13 22:54:11 -02:00
util.c perf tools: Change perf_guest default back to false 2012-03-03 12:13:41 -03:00
util.h perf tools: Implement islower/isupper macro into util.h 2012-02-13 23:15:43 -02:00
values.c perf tools: Fix a memory leak on perf_read_values_destroy 2011-12-20 13:41:34 -02:00
values.h
wrapper.c
xyarray.c
xyarray.h