linux-kernel - [tip:perf/urgent] perf probe: Support vmlinux on cwd by default

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Date:	Wed, 9 Dec 2009 07:25:47 GMT
From:	tip-bot for Masami Hiramatsu <mhiramat@...hat.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, mingo@...hat.com, peterz@...radead.org,
	dle-develop@...ts.sourceforge.net, fweisbec@...il.com,
	rostedt@...dmis.org, jbaron@...hat.com, tglx@...utronix.de,
	mhiramat@...hat.com, systemtap@...rces.redhat.com,
	linux-kernel@...r.kernel.org, hpa@...or.com, fche@...hat.com,
	jkenisto@...ibm.com, hch@...radead.org, ananth@...ibm.com,
	srikar@...ux.vnet.ibm.com, mingo@...e.hu, prasad@...ux.vnet.ibm.com
Subject: [tip:perf/urgent] perf probe: Support vmlinux on cwd by default

Commit-ID:  f984f03da35357b23d53e9cad29e909810857451
Gitweb:     http://git.kernel.org/tip/f984f03da35357b23d53e9cad29e909810857451
Author:     Masami Hiramatsu <mhiramat@...hat.com>
AuthorDate: Tue, 8 Dec 2009 17:03:09 -0500
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Wed, 9 Dec 2009 07:26:52 +0100

perf probe: Support vmlinux on cwd by default

Support vmlinux on current working direcotry by default and
also update file-open messages.
Now perf probe searches ./vmlinux too.

Signed-off-by: Masami Hiramatsu <mhiramat@...hat.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Jim Keniston <jkenisto@...ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@...ibm.com>
Cc: Christoph Hellwig <hch@...radead.org>
Cc: Frank Ch. Eigler <fche@...hat.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Jason Baron <jbaron@...hat.com>
Cc: K.Prasad <prasad@...ux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: systemtap <systemtap@...rces.redhat.com>
Cc: DLE <dle-develop@...ts.sourceforge.net>
LKML-Reference: <20091208220309.10142.33040.stgit@...p-100-2-132.bos.redhat.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 tools/perf/builtin-probe.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 1347fdf..1c97e13 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -43,11 +43,12 @@
 #include "util/probe-event.h"
 
 /* Default vmlinux search paths */
-#define NR_SEARCH_PATH 3
+#define NR_SEARCH_PATH 4
 const char *default_search_path[NR_SEARCH_PATH] = {
 "/lib/modules/%s/build/vmlinux",		/* Custom build kernel */
 "/usr/lib/debug/lib/modules/%s/vmlinux",	/* Red Hat debuginfo */
 "/boot/vmlinux-debug-%s",			/* Ubuntu */
+"./vmlinux",					/* CWD */
 };
 
 #define MAX_PATH_LEN 256
@@ -205,13 +206,14 @@ int cmd_probe(int argc, const char **argv, const char *prefix __used)
 #else	/* !NO_LIBDWARF */
 		pr_debug("Some probes require debuginfo.\n");
 
-	if (session.vmlinux)
+	if (session.vmlinux) {
+		pr_debug("Try to open %s.", session.vmlinux);
 		fd = open(session.vmlinux, O_RDONLY);
-	else
+	} else
 		fd = open_default_vmlinux();
 	if (fd < 0) {
 		if (session.need_dwarf)
-			die("Could not open vmlinux/module file.");
+			die("Could not open debuginfo file.");
 
 		pr_debug("Could not open vmlinux/module file."
 			 " Try to use symbols.\n");
--
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