From c094c232eb3246154265bb035182f92fe1b17ab8 Mon Sep 17 00:00:00 2001 From: Martin Sebor Date: Tue, 25 Jan 2022 15:39:38 -0700 Subject: Avoid -Wuse-after-free in tests [BZ #26779]. Reviewed-by: Carlos O'Donell --- malloc/tst-malloc-too-large.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'malloc/tst-malloc-too-large.c') diff --git a/malloc/tst-malloc-too-large.c b/malloc/tst-malloc-too-large.c index e23aa08e4f..dac3c8086c 100644 --- a/malloc/tst-malloc-too-large.c +++ b/malloc/tst-malloc-too-large.c @@ -95,7 +95,15 @@ test_large_allocations (size_t size) DIAG_POP_NEEDS_COMMENT; #endif TEST_VERIFY (errno == ENOMEM); +#if __GNUC_PREREQ (12, 0) + /* Ignore a warning about using a pointer made indeterminate by + a prior call to realloc(). */ + DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free"); +#endif free (ptr_to_realloc); +#if __GNUC_PREREQ (12, 0) + DIAG_POP_NEEDS_COMMENT; +#endif for (size_t nmemb = 1; nmemb <= 8; nmemb *= 2) if ((size % nmemb) == 0) @@ -113,14 +121,30 @@ test_large_allocations (size_t size) test_setup (); TEST_VERIFY (reallocarray (ptr_to_realloc, nmemb, size / nmemb) == NULL); TEST_VERIFY (errno == ENOMEM); +#if __GNUC_PREREQ (12, 0) + /* Ignore a warning about using a pointer made indeterminate by + a prior call to realloc(). */ + DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free"); +#endif free (ptr_to_realloc); +#if __GNUC_PREREQ (12, 0) + DIAG_POP_NEEDS_COMMENT; +#endif ptr_to_realloc = malloc (16); TEST_VERIFY_EXIT (ptr_to_realloc != NULL); test_setup (); TEST_VERIFY (reallocarray (ptr_to_realloc, size / nmemb, nmemb) == NULL); TEST_VERIFY (errno == ENOMEM); +#if __GNUC_PREREQ (12, 0) + /* Ignore a warning about using a pointer made indeterminate by + a prior call to realloc(). */ + DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free"); +#endif free (ptr_to_realloc); +#if __GNUC_PREREQ (12, 0) + DIAG_POP_NEEDS_COMMENT; +#endif } else break; -- cgit v1.2.3