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7b869986 NP |
1 | /* GNU Objective C Runtime Memory allocation functions |
2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 2002, 2009, 2010 | |
40165636 | 3 | Free Software Foundation, Inc. |
88e17b57 BE |
4 | Contributed by Kresten Krab Thorup |
5 | ||
38709cad | 6 | This file is part of GCC. |
88e17b57 | 7 | |
38709cad | 8 | GCC is free software; you can redistribute it and/or modify it |
88e17b57 | 9 | under the terms of the GNU General Public License as published by the |
748086b7 | 10 | Free Software Foundation; either version 3, or (at your option) any |
88e17b57 BE |
11 | later version. |
12 | ||
38709cad | 13 | GCC is distributed in the hope that it will be useful, but WITHOUT |
88e17b57 BE |
14 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | for more details. | |
17 | ||
748086b7 JJ |
18 | Under Section 7 of GPL version 3, you are granted additional |
19 | permissions described in the GCC Runtime Library Exception, version | |
20 | 3.1, as published by the Free Software Foundation. | |
21 | ||
22 | You should have received a copy of the GNU General Public License and | |
23 | a copy of the GCC Runtime Library Exception along with this program; | |
24 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
25 | <http://www.gnu.org/licenses/>. */ | |
88e17b57 | 26 | |
d1be5d82 NP |
27 | /* |
28 | This file includes the standard functions for memory allocation and | |
29 | disposal. Users should use these functions in their ObjC programs | |
30 | so that they work properly with garbage collectors. | |
31 | */ | |
32 | ||
6dead247 | 33 | #include "objc-private/common.h" |
7b869986 | 34 | #include "objc-private/error.h" |
88e17b57 | 35 | |
6dead247 NP |
36 | /* __USE_FIXED_PROTOTYPES__ used to be required to get prototypes for |
37 | malloc, free, etc. on some platforms. It is unclear if we still | |
38 | need it, but it can't hurt. | |
39 | */ | |
88e17b57 BE |
40 | #define __USE_FIXED_PROTOTYPES__ |
41 | #include <stdlib.h> | |
6dead247 | 42 | |
a19fac96 NP |
43 | #include "objc/objc.h" |
44 | #include "objc/objc-api.h" | |
88e17b57 | 45 | |
d1be5d82 NP |
46 | #if OBJC_WITH_GC |
47 | #include <gc.h> | |
88e17b57 BE |
48 | |
49 | void * | |
40165636 | 50 | objc_malloc (size_t size) |
88e17b57 | 51 | { |
d1be5d82 | 52 | void *res = (void *)(GC_malloc (size)); |
40165636 | 53 | if (! res) |
7b869986 | 54 | _objc_abort ("Virtual memory exhausted\n"); |
88e17b57 BE |
55 | return res; |
56 | } | |
57 | ||
58 | void * | |
40165636 | 59 | objc_atomic_malloc (size_t size) |
88e17b57 | 60 | { |
d1be5d82 | 61 | void *res = (void *)(GC_malloc_atomic (size)); |
40165636 | 62 | if (! res) |
7b869986 | 63 | _objc_abort ("Virtual memory exhausted\n"); |
88e17b57 BE |
64 | return res; |
65 | } | |
66 | ||
67 | void * | |
d1be5d82 NP |
68 | objc_realloc (void *mem, size_t size) |
69 | { | |
70 | void *res = (void *)(GC_realloc (mem, size)); | |
71 | if (! res) | |
72 | _objc_abort ("Virtual memory exhausted\n"); | |
73 | return res; | |
74 | } | |
75 | ||
76 | void * | |
77 | objc_calloc (size_t nelem, size_t size) | |
78 | { | |
79 | /* Note that GC_malloc returns cleared memory (see documentation) so | |
80 | there is no need to clear it. */ | |
81 | void *res = (void *)(GC_malloc (nelem, size)); | |
82 | if (! res) | |
83 | _objc_abort ("Virtual memory exhausted\n"); | |
84 | return res; | |
85 | } | |
86 | ||
87 | void | |
88 | objc_free (void *mem) | |
89 | { | |
90 | return; | |
91 | } | |
92 | ||
93 | #else | |
94 | ||
95 | void * | |
96 | objc_malloc (size_t size) | |
88e17b57 | 97 | { |
d1be5d82 NP |
98 | void *res = (void *)(malloc (size)); |
99 | if (! res) | |
100 | _objc_abort ("Virtual memory exhausted\n"); | |
101 | return res; | |
102 | } | |
103 | ||
104 | void * | |
105 | objc_atomic_malloc (size_t size) | |
106 | { | |
107 | void *res = (void *)(malloc (size)); | |
40165636 | 108 | if (! res) |
7b869986 | 109 | _objc_abort ("Virtual memory exhausted\n"); |
88e17b57 BE |
110 | return res; |
111 | } | |
112 | ||
113 | void * | |
40165636 | 114 | objc_realloc (void *mem, size_t size) |
88e17b57 | 115 | { |
d1be5d82 | 116 | void *res = (void *)(realloc (mem, size)); |
40165636 | 117 | if (! res) |
7b869986 | 118 | _objc_abort ("Virtual memory exhausted\n"); |
88e17b57 BE |
119 | return res; |
120 | } | |
121 | ||
122 | void * | |
40165636 | 123 | objc_calloc (size_t nelem, size_t size) |
88e17b57 | 124 | { |
d1be5d82 | 125 | void *res = (void *)(calloc (nelem, size)); |
40165636 | 126 | if (! res) |
7b869986 | 127 | _objc_abort ("Virtual memory exhausted\n"); |
88e17b57 BE |
128 | return res; |
129 | } | |
130 | ||
131 | void | |
40165636 | 132 | objc_free (void *mem) |
88e17b57 | 133 | { |
d1be5d82 | 134 | free (mem); |
88e17b57 BE |
135 | } |
136 | ||
d1be5d82 NP |
137 | #endif /* !OBJC_WITH_GC */ |
138 | ||
139 | /* The rest of the file contains deprecated code. */ | |
88e17b57 BE |
140 | |
141 | #if OBJC_WITH_GC | |
88e17b57 | 142 | |
d1be5d82 NP |
143 | void * |
144 | objc_valloc (size_t size) | |
88e17b57 | 145 | { |
d1be5d82 NP |
146 | void *res = (void *)(GC_malloc (size)); |
147 | if (! res) | |
148 | _objc_abort ("Virtual memory exhausted\n"); | |
149 | return res; | |
88e17b57 BE |
150 | } |
151 | ||
d1be5d82 NP |
152 | #else |
153 | ||
154 | void * | |
155 | objc_valloc (size_t size) | |
40165636 | 156 | { |
d1be5d82 NP |
157 | void *res = (void *)(malloc (size)); |
158 | if (! res) | |
159 | _objc_abort ("Virtual memory exhausted\n"); | |
160 | return res; | |
40165636 | 161 | } |
88e17b57 | 162 | |
d1be5d82 | 163 | #endif /* !OBJC_WITH_GC */ |
88e17b57 | 164 | |
d1be5d82 NP |
165 | /* |
166 | Hook functions for memory allocation and disposal. Deprecated | |
167 | and currently unused. | |
168 | */ | |
88e17b57 | 169 | |
40165636 RB |
170 | void *(*_objc_malloc) (size_t) = malloc; |
171 | void *(*_objc_atomic_malloc) (size_t) = malloc; | |
172 | void *(*_objc_valloc) (size_t) = malloc; | |
173 | void *(*_objc_realloc) (void *, size_t) = realloc; | |
174 | void *(*_objc_calloc) (size_t, size_t) = calloc; | |
175 | void (*_objc_free) (void *) = free; |