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Arnaldo Carvalho de Melo f33cbe72e6 perf evlist: Send the errno in the signal when workload fails 
When a tool uses perf_evlist__start_workload and the supplied workload
fails (e.g.: its binary wasn't found), perror was being used to print
the error reason.

This is undesirable, as the caller may be a GUI, when it wants to have
total control of the error reporting process.

So move to using sigaction(SA_SIGINFO) + siginfo_t->sa_value->sival_int
to communicate to the caller the errno and let it print it using the UI
of its choosing.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-epgcv7kjq8ll2udqfken92pz@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 		2014-01-13 10:06:21 -03:00
..
Documentation perf timechart: Add --highlight option 2013-12-17 16:33:55 -03:00
arch perf tools: Introduce zfree 2013-12-27 15:17:00 -03:00
bench perf bench: Fix two warnings 2013-11-01 10:41:54 -03:00
config perf config: Ignore generated files in feature-checks 2013-12-23 16:49:51 -03:00
python perf python: Remove duplicate TID bit from mask 2013-08-07 17:35:25 -03:00
scripts perf tools: Finish the removal of 'self' arguments 2013-11-05 15:32:36 -03:00
tests perf tests: Factor make install tests 2013-12-19 16:18:08 -03:00
ui perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
util perf evlist: Send the errno in the signal when workload fails 2014-01-13 10:06:21 -03:00
.gitignore perf tools: Ignore 'perf timechart' output file 2013-10-11 12:17:37 -03:00
CREDITS
…
MANIFEST tools lib symbol: Start carving out symbol parsing routines from perf 2013-12-13 10:30:20 -03:00
Makefile perf tools: Fix tags/TAGS targets rebuilding 2013-11-27 16:47:14 -03:00
Makefile.perf perf ui/tui: Implement header window 2013-12-26 11:22:02 -03:00
builtin-annotate.c perf tools: Introduce zfree 2013-12-27 15:17:00 -03:00
builtin-bench.c perf bench: Change the procps visible command-name of invididual benchmark tests plus cleanups 2013-10-23 09:57:34 -03:00
builtin-buildid-cache.c perf tools: Add data object to handle perf data file 2013-10-21 17:33:24 -03:00
builtin-buildid-list.c perf session: Separating data file properties from session 2013-10-21 17:33:25 -03:00
builtin-diff.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
builtin-evlist.c perf tools: Add data object to handle perf data file 2013-10-21 17:33:24 -03:00
builtin-help.c perf help: Fix --help for builtins 2012-10-22 12:35:49 -02:00
builtin-inject.c perf inject: Handle output file via perf_data_file object 2013-12-19 11:38:49 -03:00
builtin-kmem.c perf evsel: Ditch evsel->handler.data field 2013-11-07 10:40:47 -03:00
builtin-kvm.c perf tools: No need to test against NULL before calling free() 2013-12-26 15:58:52 -03:00
builtin-list.c perf list: Add usage 2013-11-05 14:26:41 -03:00
builtin-lock.c perf evsel: Ditch evsel->handler.data field 2013-11-07 10:40:47 -03:00
builtin-mem.c perf mem: Remove unused parameter from dump_raw_samples() 2013-12-19 17:03:39 -03:00
builtin-probe.c perf probe: Support basic dwarf-based operations on uprobe events 2013-12-26 11:22:01 -03:00
builtin-record.c perf evlist: Send the errno in the signal when workload fails 2014-01-13 10:06:21 -03:00
builtin-report.c perf report: Print session information only if --stdio is given 2013-12-20 13:36:41 -03:00
builtin-sched.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
builtin-script.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
builtin-stat.c perf evlist: Send the errno in the signal when workload fails 2014-01-13 10:06:21 -03:00
builtin-timechart.c perf tools: Introduce zfree 2013-12-27 15:17:00 -03:00
builtin-top.c perf tools: Rename 'perf_record_opts' to 'record_opts 2013-12-19 14:43:45 -03:00
builtin-trace.c perf tools: Introduce zfree 2013-12-27 15:17:00 -03:00
builtin.h perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
command-list.txt perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
design.txt
…
perf-archive.sh perf archive: Make 'f' the last parameter for tar 2012-09-17 13:10:42 -03:00
perf-completion.sh perf completion: Complete 'perf kvm' 2013-12-13 10:30:21 -03:00
perf.c tools/: Convert to new topic libraries 2013-12-16 16:03:27 -03:00
perf.h perf tools: Rename 'perf_record_opts' to 'record_opts 2013-12-19 14:43:45 -03:00