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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 | ||
bc18535a NP |
33 | /* TODO: Turn these into macros or inline functions. */ |
34 | ||
6dead247 | 35 | #include "objc-private/common.h" |
7b869986 | 36 | #include "objc-private/error.h" |
88e17b57 | 37 | |
6dead247 NP |
38 | /* __USE_FIXED_PROTOTYPES__ used to be required to get prototypes for |
39 | malloc, free, etc. on some platforms. It is unclear if we still | |
40 | need it, but it can't hurt. | |
41 | */ | |
88e17b57 BE |
42 | #define __USE_FIXED_PROTOTYPES__ |
43 | #include <stdlib.h> | |
6dead247 | 44 | |
718a8e53 | 45 | #include "objc/runtime.h" |
88e17b57 | 46 | |
d1be5d82 NP |
47 | #if OBJC_WITH_GC |
48 | #include <gc.h> | |
88e17b57 BE |
49 | |
50 | void * | |
40165636 | 51 | objc_malloc (size_t size) |
88e17b57 | 52 | { |
d1be5d82 | 53 | void *res = (void *)(GC_malloc (size)); |
40165636 | 54 | if (! res) |
7b869986 | 55 | _objc_abort ("Virtual memory exhausted\n"); |
88e17b57 BE |
56 | return res; |
57 | } | |
58 | ||
59 | void * | |
40165636 | 60 | objc_atomic_malloc (size_t size) |
88e17b57 | 61 | { |
d1be5d82 | 62 | void *res = (void *)(GC_malloc_atomic (size)); |
40165636 | 63 | if (! res) |
7b869986 | 64 | _objc_abort ("Virtual memory exhausted\n"); |
88e17b57 BE |
65 | return res; |
66 | } | |
67 | ||
68 | void * | |
d1be5d82 NP |
69 | objc_realloc (void *mem, size_t size) |
70 | { | |
71 | void *res = (void *)(GC_realloc (mem, size)); | |
72 | if (! res) | |
73 | _objc_abort ("Virtual memory exhausted\n"); | |
74 | return res; | |
75 | } | |
76 | ||
77 | void * | |
78 | objc_calloc (size_t nelem, size_t size) | |
79 | { | |
80 | /* Note that GC_malloc returns cleared memory (see documentation) so | |
81 | there is no need to clear it. */ | |
7e268280 | 82 | void *res = (void *)(GC_malloc (nelem * size)); |
d1be5d82 NP |
83 | if (! res) |
84 | _objc_abort ("Virtual memory exhausted\n"); | |
85 | return res; | |
86 | } | |
87 | ||
88 | void | |
bc18535a | 89 | objc_free (void *mem __attribute__ ((__unused__))) |
d1be5d82 NP |
90 | { |
91 | return; | |
92 | } | |
93 | ||
94 | #else | |
95 | ||
96 | void * | |
97 | objc_malloc (size_t size) | |
88e17b57 | 98 | { |
d1be5d82 NP |
99 | void *res = (void *)(malloc (size)); |
100 | if (! res) | |
101 | _objc_abort ("Virtual memory exhausted\n"); | |
102 | return res; | |
103 | } | |
104 | ||
105 | void * | |
106 | objc_atomic_malloc (size_t size) | |
107 | { | |
108 | void *res = (void *)(malloc (size)); | |
40165636 | 109 | if (! res) |
7b869986 | 110 | _objc_abort ("Virtual memory exhausted\n"); |
88e17b57 BE |
111 | return res; |
112 | } | |
113 | ||
114 | void * | |
40165636 | 115 | objc_realloc (void *mem, size_t size) |
88e17b57 | 116 | { |
d1be5d82 | 117 | void *res = (void *)(realloc (mem, size)); |
40165636 | 118 | if (! res) |
7b869986 | 119 | _objc_abort ("Virtual memory exhausted\n"); |
88e17b57 BE |
120 | return res; |
121 | } | |
122 | ||
123 | void * | |
40165636 | 124 | objc_calloc (size_t nelem, size_t size) |
88e17b57 | 125 | { |
d1be5d82 | 126 | void *res = (void *)(calloc (nelem, size)); |
40165636 | 127 | if (! res) |
7b869986 | 128 | _objc_abort ("Virtual memory exhausted\n"); |
88e17b57 BE |
129 | return res; |
130 | } | |
131 | ||
132 | void | |
40165636 | 133 | objc_free (void *mem) |
88e17b57 | 134 | { |
d1be5d82 | 135 | free (mem); |
88e17b57 BE |
136 | } |
137 | ||
d1be5d82 NP |
138 | #endif /* !OBJC_WITH_GC */ |
139 | ||
140 | /* The rest of the file contains deprecated code. */ | |
88e17b57 BE |
141 | |
142 | #if OBJC_WITH_GC | |
88e17b57 | 143 | |
d1be5d82 NP |
144 | void * |
145 | objc_valloc (size_t size) | |
88e17b57 | 146 | { |
d1be5d82 NP |
147 | void *res = (void *)(GC_malloc (size)); |
148 | if (! res) | |
149 | _objc_abort ("Virtual memory exhausted\n"); | |
150 | return res; | |
88e17b57 BE |
151 | } |
152 | ||
d1be5d82 NP |
153 | #else |
154 | ||
155 | void * | |
156 | objc_valloc (size_t size) | |
40165636 | 157 | { |
d1be5d82 NP |
158 | void *res = (void *)(malloc (size)); |
159 | if (! res) | |
160 | _objc_abort ("Virtual memory exhausted\n"); | |
161 | return res; | |
40165636 | 162 | } |
88e17b57 | 163 | |
d1be5d82 | 164 | #endif /* !OBJC_WITH_GC */ |
88e17b57 | 165 | |
d1be5d82 NP |
166 | /* |
167 | Hook functions for memory allocation and disposal. Deprecated | |
168 | and currently unused. | |
169 | */ | |
88e17b57 | 170 | |
40165636 RB |
171 | void *(*_objc_malloc) (size_t) = malloc; |
172 | void *(*_objc_atomic_malloc) (size_t) = malloc; | |
173 | void *(*_objc_valloc) (size_t) = malloc; | |
174 | void *(*_objc_realloc) (void *, size_t) = realloc; | |
175 | void *(*_objc_calloc) (size_t, size_t) = calloc; | |
176 | void (*_objc_free) (void *) = free; |