linux-kernel - [PATCH 13/15] parse-events: Allow '*' and '/' operations in TP

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Date:	Wed, 25 Apr 2012 14:26:57 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Steven Rostedt <srostedt@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Borislav Petkov <bp@...en8.de>, Jiri Olsa <jolsa@...hat.com>,
	Arun Sharma <asharma@...com>,
	Namhyung Kim <namhyung.kim@....com>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: [PATCH 13/15] parse-events: Allow '*' and '/' operations in TP_printk

From: Steven Rostedt <srostedt@...hat.com>

Add multiply and divide operations in the printk format.

Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Arnaldo Carvalho de Melo <acme@...radead.org>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Arun Sharma <asharma@...com>
Cc: Namhyung Kim <namhyung.kim@....com>
Cc: David Ahern <dsahern@...il.com>
Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
---
 tools/lib/traceevent/event-parse.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 476626a..876b2720 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -3130,6 +3130,12 @@ eval_num_arg(void *data, int size, struct event_format *event, struct print_arg
 		case '+':
 			val = left + right;
 			break;
+		case '/':
+			val = left / right;
+			break;
+		case '*':
+			val = left * right;
+			break;
 		default:
 			die("unknown op '%s'", arg->op.op);
 		}
-- 
1.7.5.4

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