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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@redhat.com>
AuthorDate: Thu, 25 Feb 2010 08:36:04 -0500
Committer: Ingo Molnar <mingo@elte.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@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
LKML-Reference: <20100225133604.6725.76820.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@elte.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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