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dff8da6b | 1 | /* Copyright (C) 1999-2024 Free Software Foundation, Inc. |
d7807bfa | 2 | This file is part of the GNU C Library. |
d7807bfa UD |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
d7807bfa UD |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
d7807bfa | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
d7807bfa UD |
17 | |
18 | #include <errno.h> | |
19 | #include <malloc.h> | |
20 | #include <stdio.h> | |
e15f7de6 | 21 | #include <libc-diag.h> |
d7807bfa UD |
22 | |
23 | static int errors = 0; | |
24 | ||
25 | static void | |
26 | merror (const char *msg) | |
27 | { | |
28 | ++errors; | |
29 | printf ("Error: %s\n", msg); | |
30 | } | |
31 | ||
29955b5d AS |
32 | static int |
33 | do_test (void) | |
d7807bfa | 34 | { |
7463d5cb | 35 | void *p, *q; |
d7807bfa UD |
36 | int save; |
37 | ||
38 | errno = 0; | |
39 | ||
3d7229c2 JM |
40 | DIAG_PUSH_NEEDS_COMMENT; |
41 | #if __GNUC_PREREQ (7, 0) | |
42 | /* GCC 7 warns about too-large allocations; here we want to test | |
43 | that they fail. */ | |
44 | DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than="); | |
45 | #endif | |
d7807bfa | 46 | p = malloc (-1); |
3d7229c2 | 47 | DIAG_POP_NEEDS_COMMENT; |
d7807bfa UD |
48 | save = errno; |
49 | ||
50 | if (p != NULL) | |
51 | merror ("malloc (-1) succeeded."); | |
52 | ||
53 | if (p == NULL && save != ENOMEM) | |
54 | merror ("errno is not set correctly"); | |
55 | ||
56 | p = malloc (10); | |
57 | if (p == NULL) | |
58 | merror ("malloc (10) failed."); | |
59 | ||
60 | /* realloc (p, 0) == free (p). */ | |
61 | p = realloc (p, 0); | |
62 | if (p != NULL) | |
63 | merror ("realloc (p, 0) failed."); | |
64 | ||
65 | p = malloc (0); | |
66 | if (p == NULL) | |
67 | merror ("malloc (0) failed."); | |
68 | ||
69 | p = realloc (p, 0); | |
70 | if (p != NULL) | |
71 | merror ("realloc (p, 0) failed."); | |
72 | ||
7463d5cb UD |
73 | p = malloc (513 * 1024); |
74 | if (p == NULL) | |
75 | merror ("malloc (513K) failed."); | |
76 | ||
3d7229c2 JM |
77 | DIAG_PUSH_NEEDS_COMMENT; |
78 | #if __GNUC_PREREQ (7, 0) | |
79 | /* GCC 7 warns about too-large allocations; here we want to test | |
80 | that they fail. */ | |
81 | DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than="); | |
82 | #endif | |
7463d5cb | 83 | q = malloc (-512 * 1024); |
3d7229c2 | 84 | DIAG_POP_NEEDS_COMMENT; |
7463d5cb UD |
85 | if (q != NULL) |
86 | merror ("malloc (-512K) succeeded."); | |
87 | ||
88 | free (p); | |
89 | ||
d7807bfa UD |
90 | return errors != 0; |
91 | } | |
29955b5d AS |
92 | |
93 | #define TEST_FUNCTION do_test () | |
94 | #include "../test-skeleton.c" |