perf probe: Fix line range to show end line
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).
LKML-Reference: <20100414223950.14630.42263.stgit@localhost6.localdomain6>
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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 @@
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 @@
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;