diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2026-06-04 23:49:32 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2026-06-10 18:55:49 -0300 |
| commit | 2f4e244b5968b1f7392d7de31dc961ef80f2e42e (patch) | |
| tree | e130d83d6536afacd3806fb5538f5efd52c5950e | |
| parent | 46510981d6c5e6cfa963e924b9e65b2f56222431 (diff) | |
perf jitdump: Fix a build error with ASAN
I found this error when I pass EXTRA_CFLAGS=-fsanitize=address on Fedora
44 with GCC 16. Fix it by copying one less byte.
CC util/jitdump.o
util/jitdump.c: In function ‘jit_process’:
util/jitdump.c:237:9: error: ‘__builtin_strncpy’ specified bound 4096 equals destination size
[-Werror=stringop-truncation]
237 | strncpy(jd->dir, name, PATH_MAX);
| ^
cc1: all warnings being treated as errors
make[4]: *** [tools/build/Makefile.build:95: util/jitdump.o] Error 1
make[4]: *** Waiting for unfinished jobs....
make[3]: *** [tools/build/Makefile.build:158: util] Error 2
make[2]: *** [Makefile.perf:578: perf-util-in.o] Error 2
make[1]: *** [Makefile.perf:288: sub-make] Error 2
make: *** [Makefile:76: all] Error 2
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/jitdump.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/jitdump.c b/tools/perf/util/jitdump.c index 18fd84a82153..83005b30b9bf 100644 --- a/tools/perf/util/jitdump.c +++ b/tools/perf/util/jitdump.c @@ -234,7 +234,7 @@ jit_open(struct jit_buf_desc *jd, const char *name) /* * keep dirname for generating files and mmap records */ - strncpy(jd->dir, name, PATH_MAX); + strncpy(jd->dir, name, PATH_MAX - 1); jd->dir[PATH_MAX - 1] = '\0'; dirname(jd->dir); free(buf); |