Messages in this thread Patch in this message | | | From | David Ahern <> | Subject | [PATCH 2/3] perf probe: make a copy of exec path for passing to basename | Date | Sat, 8 Sep 2012 09:06:51 -0600 |
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basename may modify the string passed to it, so the string should not be marked const.
Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: Irina Tirdea <irina.tirdea@gmail.com> --- tools/perf/util/probe-event.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 0dda25d..e8c72de 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -2307,10 +2307,17 @@ static int convert_name_to_addr(struct perf_probe_event *pev, const char *exec) function = NULL; } if (!pev->group) { - char *ptr1, *ptr2; + char *ptr1, *ptr2, *exec_copy; pev->group = zalloc(sizeof(char *) * 64); - ptr1 = strdup(basename(exec)); + exec_copy = strdup(exec); + if (!exec_copy) { + ret = -ENOMEM; + pr_warning("Failed to copy exec string.\n"); + goto out; + } + + ptr1 = strdup(basename(exec_copy)); if (ptr1) { ptr2 = strpbrk(ptr1, "-._"); if (ptr2) @@ -2319,6 +2326,7 @@ static int convert_name_to_addr(struct perf_probe_event *pev, const char *exec) ptr1); free(ptr1); } + free(exec_copy); } free(pp->function); pp->function = zalloc(sizeof(char *) * MAX_PROBE_ARGS); -- 1.7.10.1
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