mirror of
https://sourceware.org/git/glibc.git
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133 lines
3.3 KiB
C
133 lines
3.3 KiB
C
/* Copyright (C) 2005-2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <libc-diag.h>
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#include "tst-malloc-aux.h"
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static int errors = 0;
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static void
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merror (const char *msg)
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{
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++errors;
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printf ("Error: %s\n", msg);
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}
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static int
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do_test (void)
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{
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void *p, *q;
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errno = 0;
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DIAG_PUSH_NEEDS_COMMENT;
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#if __GNUC_PREREQ (7, 0)
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/* GCC 7 warns about too-large allocations; here we want to test
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that they fail. */
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DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
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#endif
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p = malloc (-1);
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DIAG_POP_NEEDS_COMMENT;
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if (p != NULL)
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merror ("malloc (-1) succeeded.");
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else if (errno != ENOMEM)
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merror ("errno is not set correctly.");
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p = malloc (10);
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if (p == NULL)
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merror ("malloc (10) failed.");
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p = realloc (p, 0);
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if (p != NULL)
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merror ("realloc (p, 0) failed.");
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p = malloc (0);
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if (p == NULL)
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merror ("malloc (0) failed.");
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p = realloc (p, 0);
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if (p != NULL)
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merror ("realloc (p, 0) failed.");
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q = malloc (256);
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if (q == NULL)
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merror ("malloc (256) failed.");
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p = malloc (512);
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if (p == NULL)
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merror ("malloc (512) failed.");
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DIAG_PUSH_NEEDS_COMMENT;
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#if __GNUC_PREREQ (7, 0)
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/* GCC 7 warns about too-large allocations; here we want to test
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that they fail. */
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DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
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#endif
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if (realloc (p, -256) != NULL)
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merror ("realloc (p, -256) succeeded.");
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else if (errno != ENOMEM)
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merror ("errno is not set correctly.");
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DIAG_POP_NEEDS_COMMENT;
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#if __GNUC_PREREQ (12, 0)
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/* Ignore a valid warning about using a pointer made indeterminate
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by a prior call to realloc(). */
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DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free");
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#endif
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free (p);
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#if __GNUC_PREREQ (12, 0)
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DIAG_POP_NEEDS_COMMENT;
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#endif
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p = malloc (512);
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if (p == NULL)
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merror ("malloc (512) failed.");
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DIAG_PUSH_NEEDS_COMMENT;
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#if __GNUC_PREREQ (7, 0)
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/* GCC 7 warns about too-large allocations; here we want to test
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that they fail. */
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DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
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#endif
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if (realloc (p, -1) != NULL)
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merror ("realloc (p, -1) succeeded.");
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else if (errno != ENOMEM)
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merror ("errno is not set correctly.");
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DIAG_POP_NEEDS_COMMENT;
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#if __GNUC_PREREQ (12, 0)
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/* Ignore a valid warning about using a pointer made indeterminate
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by a prior call to realloc(). */
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DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free");
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#endif
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free (p);
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#if __GNUC_PREREQ (12, 0)
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DIAG_POP_NEEDS_COMMENT;
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#endif
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free (q);
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return errors != 0;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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