perf tools: Introduce perf_target__strerror()
authorNamhyung Kim <namhyung.kim@lge.com>
Mon, 7 May 2012 05:09:02 +0000 (14:09 +0900)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 7 May 2012 20:30:21 +0000 (17:30 -0300)
commit16ad2ffb822cd28e2330284a60fdfec8bb90bbb0
tree4455824202a98540493d75dc5333f77cb42b59ba
parentdfe78adaaca90417ece98edbd3eb1c9661334406
perf tools: Introduce perf_target__strerror()

The perf_target__strerror() sets @buf to a string that describes the
(perf_target-specific) error condition that is passed via @errnum.

This is similar to strerror_r() and does same thing if @errnum has a
standard errno value.

Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Suggested-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Reviewed-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1336367344-28071-6-git-send-email-namhyung.kim@lge.com
[ committer note: No need to use PERF_ERRNO_TARGET__SUCCESS, use shorter idiom ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/builtin-record.c
tools/perf/builtin-top.c
tools/perf/util/debug.c
tools/perf/util/target.c
tools/perf/util/target.h