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Message-ID: <tip-74ca4c0ece52a2d19dae1bcbfc24fcfc5facfeb4@git.kernel.org>
Date: Tue, 1 Dec 2009 07:32:02 GMT
From: tip-bot for Masami Hiramatsu <mhiramat@...hat.com>
To: linux-tip-commits@...r.kernel.org
Cc: acme@...hat.com, mingo@...hat.com, peterz@...radead.org,
fweisbec@...il.com, dle-develop@...ts.sourceforge.net,
rostedt@...dmis.org, jbaron@...hat.com, tglx@...utronix.de,
mhiramat@...hat.com, systemtap@...rces.redhat.com,
linux-kernel@...r.kernel.org, hpa@...or.com, fche@...hat.com,
jkenisto@...ibm.com, hch@...radead.org, ananth@...ibm.com,
srikar@...ux.vnet.ibm.com, mingo@...e.hu, prasad@...ux.vnet.ibm.com
Subject: [tip:perf/core] perf probe: Fix argv array size in probe parser
Commit-ID: 74ca4c0ece52a2d19dae1bcbfc24fcfc5facfeb4
Gitweb: http://git.kernel.org/tip/74ca4c0ece52a2d19dae1bcbfc24fcfc5facfeb4
Author: Masami Hiramatsu <mhiramat@...hat.com>
AuthorDate: Mon, 30 Nov 2009 19:19:43 -0500
Committer: Ingo Molnar <mingo@...e.hu>
CommitDate: Tue, 1 Dec 2009 08:20:01 +0100
perf probe: Fix argv array size in probe parser
Since the syntax has been changed, probe definition needs
parameters less than MAX_PROBE_ARGS + 1 (probe-point +
arguments).
Signed-off-by: Masami Hiramatsu <mhiramat@...hat.com>
Cc: systemtap <systemtap@...rces.redhat.com>
Cc: DLE <dle-develop@...ts.sourceforge.net>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Jim Keniston <jkenisto@...ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@...ibm.com>
Cc: Christoph Hellwig <hch@...radead.org>
Cc: Frank Ch. Eigler <fche@...hat.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Jason Baron <jbaron@...hat.com>
Cc: K.Prasad <prasad@...ux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
LKML-Reference: <20091201001943.10235.80367.stgit@...usame>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
tools/perf/builtin-probe.c | 11 +++++++----
1 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 4e418af..510fdd4 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -151,7 +151,7 @@ static void parse_probe_point(char *arg, struct probe_point *pp)
/* Parse an event definition. Note that any error must die. */
static void parse_probe_event(const char *str)
{
- char *argv[MAX_PROBE_ARGS + 2]; /* Event + probe + args */
+ char *argv[MAX_PROBE_ARGS + 1]; /* probe + args */
int argc, i;
struct probe_point *pp = &session.probes[session.nr_probe];
@@ -169,6 +169,9 @@ static void parse_probe_event(const char *str)
/* Add an argument */
if (*str != '\0') {
const char *s = str;
+ /* Check the limit number of arguments */
+ if (argc == MAX_PROBE_ARGS + 1)
+ semantic_error("Too many arguments");
/* Skip the argument */
while (!isspace(*str) && *str != '\0')
@@ -178,9 +181,9 @@ static void parse_probe_event(const char *str)
argv[argc] = strndup(s, str - s);
if (argv[argc] == NULL)
die("strndup");
- if (++argc == MAX_PROBE_ARGS)
- semantic_error("Too many arguments");
- pr_debug("argv[%d]=%s\n", argc, argv[argc - 1]);
+ pr_debug("argv[%d]=%s\n", argc, argv[argc]);
+ argc++;
+
}
} while (*str != '\0');
if (!argc)
--
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