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| author | Martin Sebor <msebor@redhat.com> | 2022-01-25 15:39:38 -0700 |
|---|---|---|
| committer | Martin Sebor <msebor@redhat.com> | 2022-01-26 10:38:23 -0700 |
| commit | c094c232eb3246154265bb035182f92fe1b17ab8 (patch) | |
| tree | 4b5d30d81c1870bbda23f9d079be4509fd4d2843 /malloc/tst-malloc-backtrace.c | |
| parent | e4ba8fee1a8feea62f9f06099a116163848338db (diff) | |
| download | glibc-c094c232eb3246154265bb035182f92fe1b17ab8.tar.gz glibc-c094c232eb3246154265bb035182f92fe1b17ab8.tar.xz glibc-c094c232eb3246154265bb035182f92fe1b17ab8.zip | |
Avoid -Wuse-after-free in tests [BZ #26779].
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'malloc/tst-malloc-backtrace.c')
| -rw-r--r-- | malloc/tst-malloc-backtrace.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/malloc/tst-malloc-backtrace.c b/malloc/tst-malloc-backtrace.c index ea66da23ef..65e1a1ffbc 100644 --- a/malloc/tst-malloc-backtrace.c +++ b/malloc/tst-malloc-backtrace.c @@ -20,6 +20,7 @@ #include <stdlib.h> #include <support/support.h> +#include <libc-diag.h> #define SIZE 4096 @@ -29,7 +30,15 @@ __attribute__((noinline)) call_free (void *ptr) { free (ptr); +#if __GNUC_PREREQ (12, 0) + /* Ignore a valid warning about using a pointer made indeterminate + by a prior call to free(). */ + DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free"); +#endif *(size_t *)(ptr - sizeof (size_t)) = 1; +#if __GNUC_PREREQ (12, 0) + DIAG_POP_NEEDS_COMMENT; +#endif } int |