1/* GNU Objective C Runtime Memory allocation functions 2 Copyright (C) 1993-2022 Free Software Foundation, Inc. 3 Contributed by Kresten Krab Thorup 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify it 8under the terms of the GNU General Public License as published by the 9Free Software Foundation; either version 3, or (at your option) any 10later version. 11 12GCC is distributed in the hope that it will be useful, but WITHOUT 13ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15for more details. 16 17Under Section 7 of GPL version 3, you are granted additional 18permissions described in the GCC Runtime Library Exception, version 193.1, as published by the Free Software Foundation. 20 21You should have received a copy of the GNU General Public License and 22a copy of the GCC Runtime Library Exception along with this program; 23see 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 46void * 47objc_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 55void * 56objc_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 64void * 65objc_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 73void * 74objc_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 84void 85objc_free (void *mem __attribute__ ((__unused__))) 86{ 87 return; 88} 89 90#else 91 92void * 93objc_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 101void * 102objc_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 110void * 111objc_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 119void * 120objc_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 128void 129objc_free (void *mem) 130{ 131 free (mem); 132} 133 134#endif /* !OBJC_WITH_GC */ 135