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| author | Masami Hiramatsu <mhiramat@redhat.com> | 2009-11-30 19:19:43 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-12-01 08:20:01 +0100 |
| commit | 74ca4c0ece52a2d19dae1bcbfc24fcfc5facfeb4 (patch) | |
| tree | ce2924790106487beab8a714c54ecf171539422f | |
| parent | 57d250df7deb3e1742fbf3cc3230119731109552 (diff) | |
| download | op-kernel-dev-74ca4c0ece52a2d19dae1bcbfc24fcfc5facfeb4.zip op-kernel-dev-74ca4c0ece52a2d19dae1bcbfc24fcfc5facfeb4.tar.gz | |
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@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20091201001943.10235.80367.stgit@harusame>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | 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) |
