linux-kernel - [tip:perfcounters/core] perf annotate: Automatically pick up vmlinux in the local directory

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Date:	Sat, 6 Jun 2009 19:21:32 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, tglx@...utronix.de, mingo@...e.hu
Subject: [tip:perfcounters/core] perf annotate: Automatically pick up vmlinux in the local directory

Commit-ID:  39273ee9756917129de3190d469b0b120f87e763
Gitweb:     http://git.kernel.org/tip/39273ee9756917129de3190d469b0b120f87e763
Author:     Ingo Molnar <mingo@...e.hu>
AuthorDate: Sat, 6 Jun 2009 21:17:03 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Sat, 6 Jun 2009 21:17:03 +0200

perf annotate: Automatically pick up vmlinux in the local directory

Right now kernel debug info does not get resolved by default, because
we dont know where to look for the vmlinux.

The -k option can be used for that - but if no option is given, pick
up vmlinux files in the current directory - in case a kernel hacker
runs profiling from the source directory that the kernel was built in.

The real solution would be to embedd the location (and perhaps the
date/timestamp) of the vmlinux file in /proc/kallsyms, so that
tools can pick it up automatically.

Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Mike Galbraith <efault@....de>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 tools/perf/builtin-annotate.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 4a3c279..80c5aa0 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -26,7 +26,7 @@
 #define SHOW_HV		4
 
 static char		const *input_name = "perf.data";
-static char		*vmlinux = NULL;
+static char		*vmlinux = "vmlinux";
 
 static char		default_sort_order[] = "comm,symbol";
 static char		*sort_order = default_sort_order;
--
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