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Commit 9d95b580 authored by Franck Bui-Huu's avatar Franck Bui-Huu Committed by Arnaldo Carvalho de Melo
Browse files

perf probe: Fix line range description since a single file is allowed 



	$ perf-probe -L sched.c

is currently allowed but not documented.

Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
LKML-Reference: <1292854685-8230-5-git-send-email-fbuihuu@gmail.com>
Signed-off-by: default avatarFranck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 44b81e92

tools/perf/Documentation/perf-probe.txt

+1 −1
Original line number Diff line number Diff line
@@ -117,7 +117,7 @@ LINE SYNTAX 
-----------

Line range is described by following syntax.



 "FUNC[:RLN[+NUM|-RLN2]]|SRC:ALN[+NUM|-ALN2]"

 "FUNC[:RLN[+NUM|-RLN2]]|SRC[:ALN[+NUM|-ALN2]]"



FUNC specifies the function name of showing lines. 'RLN' is the start line

number from function entry line, and 'RLN2' is the end line number. As same as

tools/perf/util/probe-event.c

+8 −5
Original line number Diff line number Diff line
@@ -515,15 +515,18 @@ int show_available_vars(struct perf_probe_event *pevs __unused, 
}

#endif



/*

 * Stuff 'lr' according to the line range described by 'arg'.

 * The line range syntax is described by:

 *

 *         SRC[:SLN[+NUM|-ELN]]

 *         FNC[:SLN[+NUM|-ELN]]

 */

int parse_line_range_desc(const char *arg, struct line_range *lr)

{

	const char *ptr;

	char *tmp;

	/*

	 * <Syntax>

	 * SRC:SLN[+NUM|-ELN]

	 * FUNC[:SLN[+NUM|-ELN]]

	 */



	ptr = strchr(arg, ':');

	if (ptr) {

		lr->start = (int)strtoul(ptr + 1, &tmp, 0);