1 /* GNU Objective C Runtime Memory allocation functions 2 Copyright (C) 1993, 1994, 1995, 1996, 1997, 2002, 2009, 2010 3 Free Software Foundation, Inc. 4 Contributed by Kresten Krab Thorup 5 6 This file is part of GCC. 7 8 GCC is free software; you can redistribute it and/or modify it 9 under the terms of the GNU General Public License as published by the 10 Free Software Foundation; either version 3, or (at your option) any 11 later version. 12 13 GCC is distributed in the hope that it will be useful, but WITHOUT 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 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/>. */ 26 27 /* This file includes the standard functions for memory allocation and 28 disposal. Users should use these functions in their ObjC programs 29 so that they work properly with garbage collectors. */ 30 31 /* TODO: Turn these into macros or inline functions. */ 32 33 #include "objc-private/common.h" 34 #include "objc-private/error.h" 35 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 #define __USE_FIXED_PROTOTYPES__ 40 #include <stdlib.h> 41 42 #include "objc/runtime.h" 43 44 #if OBJC_WITH_GC 45 #include <gc.h> 46 47 void * 48 objc_malloc (size_t size) 49 { 50 void *res = (void *)(GC_malloc (size)); 51 if (! res) 52 _objc_abort ("Virtual memory exhausted\n"); 53 return res; 54 } 55 56 void * 57 objc_atomic_malloc (size_t size) 58 { 59 void *res = (void *)(GC_malloc_atomic (size)); 60 if (! res) 61 _objc_abort ("Virtual memory exhausted\n"); 62 return res; 63 } 64 65 void * 66 objc_realloc (void *mem, size_t size) 67 { 68 void *res = (void *)(GC_realloc (mem, size)); 69 if (! res) 70 _objc_abort ("Virtual memory exhausted\n"); 71 return res; 72 } 73 74 void * 75 objc_calloc (size_t nelem, size_t size) 76 { 77 /* Note that GC_malloc returns cleared memory (see documentation) so 78 there is no need to clear it. */ 79 void *res = (void *)(GC_malloc (nelem * size)); 80 if (! res) 81 _objc_abort ("Virtual memory exhausted\n"); 82 return res; 83 } 84 85 void 86 objc_free (void *mem __attribute__ ((__unused__))) 87 { 88 return; 89 } 90 91 #else 92 93 void * 94 objc_malloc (size_t size) 95 { 96 void *res = (void *)(malloc (size)); 97 if (! res) 98 _objc_abort ("Virtual memory exhausted\n"); 99 return res; 100 } 101 102 void * 103 objc_atomic_malloc (size_t size) 104 { 105 void *res = (void *)(malloc (size)); 106 if (! res) 107 _objc_abort ("Virtual memory exhausted\n"); 108 return res; 109 } 110 111 void * 112 objc_realloc (void *mem, size_t size) 113 { 114 void *res = (void *)(realloc (mem, size)); 115 if (! res) 116 _objc_abort ("Virtual memory exhausted\n"); 117 return res; 118 } 119 120 void * 121 objc_calloc (size_t nelem, size_t size) 122 { 123 void *res = (void *)(calloc (nelem, size)); 124 if (! res) 125 _objc_abort ("Virtual memory exhausted\n"); 126 return res; 127 } 128 129 void 130 objc_free (void *mem) 131 { 132 free (mem); 133 } 134 135 #endif /* !OBJC_WITH_GC */ 136