diff options
| -rw-r--r-- | malloc/tst-malloc-backtrace.c | 9 | ||||
| -rw-r--r-- | malloc/tst-malloc-check.c | 16 | ||||
| -rw-r--r-- | malloc/tst-malloc-too-large.c | 24 | ||||
| -rw-r--r-- | malloc/tst-obstack.c | 2 | ||||
| -rw-r--r-- | malloc/tst-realloc.c | 8 | ||||
| -rw-r--r-- | support/tst-support-open-dev-null-range.c | 3 |
6 files changed, 60 insertions, 2 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 diff --git a/malloc/tst-malloc-check.c b/malloc/tst-malloc-check.c index 46938c0dbb..eb46cf3bbb 100644 --- a/malloc/tst-malloc-check.c +++ b/malloc/tst-malloc-check.c @@ -86,7 +86,15 @@ do_test (void) merror ("errno is not set correctly."); DIAG_POP_NEEDS_COMMENT; +#if __GNUC_PREREQ (12, 0) + /* Ignore a valid warning about using a pointer made indeterminate + by a prior call to realloc(). */ + DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free"); +#endif free (p); +#if __GNUC_PREREQ (12, 0) + DIAG_POP_NEEDS_COMMENT; +#endif p = malloc (512); if (p == NULL) @@ -104,7 +112,15 @@ do_test (void) merror ("errno is not set correctly."); DIAG_POP_NEEDS_COMMENT; +#if __GNUC_PREREQ (12, 0) + /* Ignore a valid warning about using a pointer made indeterminate + by a prior call to realloc(). */ + DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free"); +#endif free (p); +#if __GNUC_PREREQ (12, 0) + DIAG_POP_NEEDS_COMMENT; +#endif free (q); return errors != 0; 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; diff --git a/malloc/tst-obstack.c b/malloc/tst-obstack.c index 18af8ea62f..d80f471fa0 100644 --- a/malloc/tst-obstack.c +++ b/malloc/tst-obstack.c @@ -20,8 +20,8 @@ verbose_malloc (size_t size) static void verbose_free (void *buf) { - free (buf); printf ("free (%p)\n", buf); + free (buf); } static int diff --git a/malloc/tst-realloc.c b/malloc/tst-realloc.c index 83f165516a..8ce59f2602 100644 --- a/malloc/tst-realloc.c +++ b/malloc/tst-realloc.c @@ -138,8 +138,16 @@ do_test (void) if (ok == 0) merror ("first 16 bytes were not correct after failed realloc"); +#if __GNUC_PREREQ (12, 0) + /* Ignore a valid warning about using a pointer made indeterminate + by a prior call to realloc(). */ + DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free"); +#endif /* realloc (p, 0) frees p (C89) and returns NULL (glibc). */ p = realloc (p, 0); +#if __GNUC_PREREQ (12, 0) + DIAG_POP_NEEDS_COMMENT; +#endif if (p != NULL) merror ("realloc (p, 0) returned non-NULL."); diff --git a/support/tst-support-open-dev-null-range.c b/support/tst-support-open-dev-null-range.c index 3ed3177d57..690b9d30b7 100644 --- a/support/tst-support-open-dev-null-range.c +++ b/support/tst-support-open-dev-null-range.c @@ -39,10 +39,11 @@ check_path (int fd) char file_path[PATH_MAX]; ssize_t file_path_length = readlink (proc_fd_path, file_path, sizeof (file_path)); - free (proc_fd_path); if (file_path_length < 0) FAIL_EXIT1 ("readlink (%s, %p, %zu)", proc_fd_path, file_path, sizeof (file_path)); + + free (proc_fd_path); file_path[file_path_length] = '\0'; TEST_COMPARE_STRING (file_path, "/dev/null"); } |