From: Namhyung Kim <namhyung.kim@lge.com>
Date: Wed, 22 Aug 2012 07:00:30 +0000 (+0900)
Subject: tools lib traceevent: Introduce pevent_strerror
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~97^2~25^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2f197b9d7eeaa723a80243610956fe4a17e7b5a4;p=pandora-kernel.git

tools lib traceevent: Introduce pevent_strerror

The pevent_strerror() sets @buf to a string that describes the
(libtraceevent-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.

To sync error string with its code, define PEVENT_ERRORS with _PE()
macro and use it as suggested by Steven.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1345618831-9148-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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