linux-kernel - [tip:perfcounters/core] perf stat: Print out all arguments

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Message-ID: <tip-44db76c8553c328f4ae02481d77bb3a88ca17645@git.kernel.org>
Date:	Wed, 3 Jun 2009 18:42:45 GMT
From:	tip-bot for Ingo Molnar <mingo@...e.hu>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, acme@...hat.com, paulus@...ba.org,
	hpa@...or.com, mingo@...hat.com, a.p.zijlstra@...llo.nl,
	efault@....de, mtosatti@...hat.com, tglx@...utronix.de,
	cjashfor@...ux.vnet.ibm.com, mingo@...e.hu
Subject: [tip:perfcounters/core] perf stat: Print out all arguments

Commit-ID:  44db76c8553c328f4ae02481d77bb3a88ca17645
Gitweb:     http://git.kernel.org/tip/44db76c8553c328f4ae02481d77bb3a88ca17645
Author:     Ingo Molnar <mingo@...e.hu>
AuthorDate: Wed, 3 Jun 2009 19:36:07 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Wed, 3 Jun 2009 19:36:07 +0200

perf stat: Print out all arguments

Before:

 Performance counter stats for '/home/mingo/hackbench':

After:

 Performance counter stats for '/home/mingo/hackbench 10':

Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Mike Galbraith <efault@....de>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@...hat.com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 Documentation/perf_counter/builtin-stat.c |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/Documentation/perf_counter/builtin-stat.c b/Documentation/perf_counter/builtin-stat.c
index 2357a66..4fc0d80 100644
--- a/Documentation/perf_counter/builtin-stat.c
+++ b/Documentation/perf_counter/builtin-stat.c
@@ -228,6 +228,7 @@ static int do_perfstat(int argc, const char **argv)
 	int counter;
 	int status;
 	int pid;
+	int i;
 
 	if (!system_wide)
 		nr_cpus = 1;
@@ -243,14 +244,17 @@ static int do_perfstat(int argc, const char **argv)
 
 	if ((pid = fork()) < 0)
 		perror("failed to fork");
+
 	if (!pid) {
 		if (execvp(argv[0], (char **)argv)) {
 			perror(argv[0]);
 			exit(-1);
 		}
 	}
+
 	while (wait(&status) >= 0)
 		;
+
 	prctl(PR_TASK_PERF_COUNTERS_DISABLE);
 	t1 = rdclock();
 
@@ -259,8 +263,12 @@ static int do_perfstat(int argc, const char **argv)
 	fflush(stdout);
 
 	fprintf(stderr, "\n");
-	fprintf(stderr, " Performance counter stats for \'%s\':\n",
-		argv[0]);
+	fprintf(stderr, " Performance counter stats for \'%s", argv[0]);
+
+	for (i = 1; i < argc; i++)
+		fprintf(stderr, " %s", argv[i]);
+
+	fprintf(stderr, "\':\n");
 	fprintf(stderr, "\n");
 
 	for (counter = 0; counter < nr_counters; counter++)
--
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