Mercurial > hg > CbC > CbC_gcc
comparison libobjc/memory.c @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
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1 /* GNU Objective C Runtime Memory allocation functions | |
2 Copyright (C) 1993-2017 Free Software Foundation, Inc. | |
3 Contributed by Kresten Krab Thorup | |
4 | |
5 This file is part of GCC. | |
6 | |
7 GCC is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published by the | |
9 Free Software Foundation; either version 3, or (at your option) any | |
10 later version. | |
11 | |
12 GCC is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 for more details. | |
16 | |
17 Under Section 7 of GPL version 3, you are granted additional | |
18 permissions described in the GCC Runtime Library Exception, version | |
19 3.1, as published by the Free Software Foundation. | |
20 | |
21 You should have received a copy of the GNU General Public License and | |
22 a copy of the GCC Runtime Library Exception along with this program; | |
23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 <http://www.gnu.org/licenses/>. */ | |
25 | |
26 /* This file includes the standard functions for memory allocation and | |
27 disposal. Users should use these functions in their ObjC programs | |
28 so that they work properly with garbage collectors. */ | |
29 | |
30 /* TODO: Turn these into macros or inline functions. */ | |
31 | |
32 #include "objc-private/common.h" | |
33 #include "objc-private/error.h" | |
34 | |
35 /* __USE_FIXED_PROTOTYPES__ used to be required to get prototypes for | |
36 malloc, free, etc. on some platforms. It is unclear if we still | |
37 need it, but it can't hurt. */ | |
38 #define __USE_FIXED_PROTOTYPES__ | |
39 #include <stdlib.h> | |
40 | |
41 #include "objc/runtime.h" | |
42 | |
43 #if OBJC_WITH_GC | |
44 #include <gc/gc.h> | |
45 | |
46 void * | |
47 objc_malloc (size_t size) | |
48 { | |
49 void *res = (void *)(GC_malloc (size)); | |
50 if (! res) | |
51 _objc_abort ("Virtual memory exhausted\n"); | |
52 return res; | |
53 } | |
54 | |
55 void * | |
56 objc_atomic_malloc (size_t size) | |
57 { | |
58 void *res = (void *)(GC_malloc_atomic (size)); | |
59 if (! res) | |
60 _objc_abort ("Virtual memory exhausted\n"); | |
61 return res; | |
62 } | |
63 | |
64 void * | |
65 objc_realloc (void *mem, size_t size) | |
66 { | |
67 void *res = (void *)(GC_realloc (mem, size)); | |
68 if (! res) | |
69 _objc_abort ("Virtual memory exhausted\n"); | |
70 return res; | |
71 } | |
72 | |
73 void * | |
74 objc_calloc (size_t nelem, size_t size) | |
75 { | |
76 /* Note that GC_malloc returns cleared memory (see documentation) so | |
77 there is no need to clear it. */ | |
78 void *res = (void *)(GC_malloc (nelem * size)); | |
79 if (! res) | |
80 _objc_abort ("Virtual memory exhausted\n"); | |
81 return res; | |
82 } | |
83 | |
84 void | |
85 objc_free (void *mem __attribute__ ((__unused__))) | |
86 { | |
87 return; | |
88 } | |
89 | |
90 #else | |
91 | |
92 void * | |
93 objc_malloc (size_t size) | |
94 { | |
95 void *res = (void *)(malloc (size)); | |
96 if (! res) | |
97 _objc_abort ("Virtual memory exhausted\n"); | |
98 return res; | |
99 } | |
100 | |
101 void * | |
102 objc_atomic_malloc (size_t size) | |
103 { | |
104 void *res = (void *)(malloc (size)); | |
105 if (! res) | |
106 _objc_abort ("Virtual memory exhausted\n"); | |
107 return res; | |
108 } | |
109 | |
110 void * | |
111 objc_realloc (void *mem, size_t size) | |
112 { | |
113 void *res = (void *)(realloc (mem, size)); | |
114 if (! res) | |
115 _objc_abort ("Virtual memory exhausted\n"); | |
116 return res; | |
117 } | |
118 | |
119 void * | |
120 objc_calloc (size_t nelem, size_t size) | |
121 { | |
122 void *res = (void *)(calloc (nelem, size)); | |
123 if (! res) | |
124 _objc_abort ("Virtual memory exhausted\n"); | |
125 return res; | |
126 } | |
127 | |
128 void | |
129 objc_free (void *mem) | |
130 { | |
131 free (mem); | |
132 } | |
133 | |
134 #endif /* !OBJC_WITH_GC */ |