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From: Masami Hiramatsu on 14 Apr 2010 18:40
Line range should reject the range if the number of lines is 0
(e.g. "sched.c:1024+0"), and it should show the lines include
the end of line number (e.g. "sched.c:1024-2048" should show
2048th line).

Signed-off-by: Masami Hiramatsu <mhiramat(a)redhat.com>
Cc: Arnaldo Carvalho de Melo <acme(a)redhat.com>
Cc: Paul Mackerras <paulus(a)samba.org>
Cc: Paul Mackerras <paulus(a)samba.org>
Cc: Peter Zijlstra <peterz(a)infradead.org>
Cc: Mike Galbraith <efault(a)gmx.de>
Cc: Frederic Weisbecker <fweisbec(a)gmail.com>
Cc: Ingo Molnar <mingo(a)elte.hu>
---

tools/perf/util/probe-event.c | 12 +++++++++---
1 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 954ca21..5bf8ab0 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -290,7 +290,7 @@ int show_line_range(struct line_range *lr)

if (lr->end == INT_MAX)
lr->end = l + NR_ADDITIONAL_LINES;
- while (l < lr->end && !feof(fp) && ret >= 0)
+ while (l <= lr->end && !feof(fp) && ret >= 0)
ret = show_one_line(fp, (l++) - lr->offset, false, false);
end:
fclose(fp);
@@ -341,9 +341,15 @@ int parse_line_range_desc(const char *arg, struct line_range *lr)
ptr = strchr(arg, ':');
if (ptr) {
lr->start = (int)strtoul(ptr + 1, &tmp, 0);
- if (*tmp == '+')
+ if (*tmp == '+') {
lr->end = lr->start + (int)strtoul(tmp + 1, &tmp, 0);
- else if (*tmp == '-')
+ lr->end--; /*
+ * Adjust the number of lines here.
+ * If the number of lines == 1, the
+ * the end of line should be equal to
+ * the start of line.
+ */
+ } else if (*tmp == '-')
lr->end = (int)strtoul(tmp + 1, &tmp, 0);
else
lr->end = INT_MAX;


--
Masami Hiramatsu
e-mail: mhiramat(a)redhat.com
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Prev: [PATCH -tip 5/6] perf probe: Support DW_OP_plus_uconst in DW_AT_data_member_location
Next: [ANNOUNCE] sdparm 1.05 available