[PATCH 07/13] perf tools: Allow events with dot

From: Arnaldo Carvalho de Melo
Date: Tue Jun 23 2015 - 17:50:04 EST

From: Andi Kleen <ak@xxxxxxxxxxxxxxx>

The Intel events use a dot to separate event name and unit mask. Allow
dot in names in the scanner, and remove special handling of dot as EOF.
Also remove the hack in jevents to replace dot with underscore. This way
dotted events can be specified directly by the user.

I'm not fully sure this change to the scanner is correct (what was the
dot special case good for?), but I haven't found anything that breaks
with it so far at least.

Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Madhavan Srinivasan <maddy@xxxxxxxxxxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
Link: http://lkml.kernel.org/r/1433921123-25327-8-git-send-email-sukadev@xxxxxxxxxxxxxxxxxx
Signed-off-by: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
tools/perf/util/parse-events.l | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 09e738fe9ea2..13cef3c65565 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -119,8 +119,8 @@ event [^,{}/]+
num_dec [0-9]+
num_hex 0x[a-fA-F0-9]+
num_raw_hex [a-fA-F0-9]+
-name [a-zA-Z_*?][a-zA-Z0-9_*?]*
-name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?]*
+name [a-zA-Z_*?][a-zA-Z0-9_*?.]*
+name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?.]*
/* If you add a modifier you need to update check_modifier() */
modifier_event [ukhpGHSDI]+
modifier_bp [rwx]{1,3}
@@ -165,7 +165,6 @@ modifier_bp [rwx]{1,3}

-. |
<<EOF>> {

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