linux-kernel - [tip:perf/probes] perf probe: Show more lines after last line

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Message-ID: <tip-5c8d1cbbbed39dcab2ecf429d6e56ea548c0fda4@git.kernel.org>
Date:	Thu, 25 Feb 2010 19:32:11 GMT
From:	tip-bot for Masami Hiramatsu <mhiramat@...hat.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, paulus@...ba.org, acme@...hat.com,
	hpa@...or.com, mingo@...hat.com, efault@....de,
	peterz@...radead.org, ananth@...ibm.com,
	dle-develop@...ts.sourceforge.net, fweisbec@...il.com,
	tglx@...utronix.de, mhiramat@...hat.com, mingo@...e.hu,
	prasad@...ux.vnet.ibm.com, systemtap@...rces.redhat.com
Subject: [tip:perf/probes] perf probe: Show more lines after last line

Commit-ID:  5c8d1cbbbed39dcab2ecf429d6e56ea548c0fda4
Gitweb:     http://git.kernel.org/tip/5c8d1cbbbed39dcab2ecf429d6e56ea548c0fda4
Author:     Masami Hiramatsu <mhiramat@...hat.com>
AuthorDate: Thu, 25 Feb 2010 08:36:04 -0500
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Thu, 25 Feb 2010 17:49:30 +0100

perf probe: Show more lines after last line

Show 2 more lines after the last probe-able line.
This will clearly show the last closed-brace of
inline functions.

Signed-off-by: Masami Hiramatsu <mhiramat@...hat.com>
Cc: systemtap <systemtap@...rces.redhat.com>
Cc: DLE <dle-develop@...ts.sourceforge.net>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Mike Galbraith <efault@....de>
Cc: K.Prasad <prasad@...ux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ananth N Mavinakayanahalli <ananth@...ibm.com>
LKML-Reference: <20100225133604.6725.76820.stgit@...alhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 tools/perf/util/probe-event.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 71b0dd5..91f55f2 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -716,6 +716,7 @@ void del_trace_kprobe_events(struct strlist *dellist)
 }
 
 #define LINEBUF_SIZE 256
+#define NR_ADDITIONAL_LINES 2
 
 static void show_one_line(FILE *fp, unsigned int l, bool skip, bool show_num)
 {
@@ -776,5 +777,11 @@ void show_line_range(struct line_range *lr)
 			show_one_line(fp, (l++) - lr->offset, false, false);
 		show_one_line(fp, (l++) - lr->offset, false, true);
 	}
+
+	if (lr->end == INT_MAX)
+		lr->end = l + NR_ADDITIONAL_LINES;
+	while (l < lr->end && !feof(fp))
+		show_one_line(fp, (l++) - lr->offset, false, false);
+
 	fclose(fp);
 }
--
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