[tip:perf/core] tools lib traceevent: Teach [ce]tags about libtraceeevent error codes

[tip-bot for Namhyung Kim]

Commit-ID:  6545e3a8f0666b60b26202a5271a94f7cd9601a8
Gitweb:     http://git.kernel.org/tip/6545e3a8f0666b60b26202a5271a94f7cd9601a8
Author:     Namhyung Kim <namhyung.kim@xxxxxxx>
AuthorDate: Fri, 22 Jun 2012 17:10:14 +0900
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 29 Jun 2012 13:28:12 -0300

tools lib traceevent: Teach [ce]tags about libtraceeevent error codes

As we use a macro trick to sync each error codes with its description
string, teach [ce]tags to process them properly.

This patch modifies the libtraceevent's Makefile not a kernel one.

Suggested-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-3101nsbg52glxdqih291qj74@xxxxxxxxxxxxxx
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1340352615-20737-1-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/lib/traceevent/Makefile |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile
index 423f4b8..34a577e 100644
--- a/tools/lib/traceevent/Makefile
+++ b/tools/lib/traceevent/Makefile
@@ -270,11 +270,13 @@ endif
 
 tags:	force
 	$(RM) tags
-	find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px
+	find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
+	--regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
 
 TAGS:	force
 	$(RM) TAGS
-	find . -name '*.[ch]' | xargs etags
+	find . -name '*.[ch]' | xargs etags \
+	--regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
 
 define do_install
 	$(print_install)				\
--
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