gcc/libobjc/memory.c

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/* GNU Objective C Runtime Memory allocation functions
Copyright (C) 1993-2019 Free Software Foundation, Inc.
Contributed by Kresten Krab Thorup
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3, or (at your option) any
later version.
GCC is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
/* This file includes the standard functions for memory allocation and
disposal. Users should use these functions in their ObjC programs
so that they work properly with garbage collectors. */
objc.h: Updated comments. 2010-10-11 Nicola Pero <nicola.pero@meta-innovation.com> * objc/objc.h: Updated comments. * objc/objc-api.h: (object_copy): Added one argument; use a #define to maintain backwards-compatibility. Moved _objc_object_alloc, _objc_object_copy, _objc_object_dispose and objc_get_uninstalled_dtable into objc/deprecated/objc_get_uninstalled_dtable.h and objc/deprecated/objc_object_alloc.h. Include these files. * objc/deprecated/objc_get_uninstalled_dtable.h: New. * objc/deprecated/objc_object_alloc.h: New. * objc/runtime.h (set_getName): New. (sel_getType): New. (sel_getUid): New. (sel_registerName): New. (sel_registerTypedName): New. (sel_isEqual): New. (class_createInstance): New. (object_copy): New. (object_dispose): New. * objects.c: Do not include tconfig.h. Include gc_typed.h if building the garbage collection version. (__objc_object_alloc): Removed. (__objc_object_copy): Removed. (__objc_object_dispose): Removed. (class_createInstance): New from code in class_create_instance. Cast second argument of GC_malloc_explicitly_typed. Use objc_calloc. Do not call _objc_object_alloc. (class_create_instance): Call class_createInstance. (object_copy): Added extraBytes argument. Do not call _objc_object_copy. (object_dispose): Do not call _objc_object_dispose. * memory.c (objc_free): When using garbage collection, mark the argument as unused. * selector.c (sel_getName): New. (sel_get_name): Call sel_getName. (sel_getType): New. (sel_get_type): Call sel_getType. (sel_registerName): New. (sel_register_name): Call sel_registerName. (sel_registerTypedName): New. (sel_register_typed_name): Call sel_registerTypedName. (sel_getUid): New. (sel_get_uid): Call sel_getUid. From-SVN: r165264
2010-10-11 01:28:12 +02:00
/* TODO: Turn these into macros or inline functions. */
#include "objc-private/common.h"
#include "objc-private/error.h"
/* __USE_FIXED_PROTOTYPES__ used to be required to get prototypes for
malloc, free, etc. on some platforms. It is unclear if we still
need it, but it can't hurt. */
#define __USE_FIXED_PROTOTYPES__
#include <stdlib.h>
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#include "objc/runtime.h"
#if OBJC_WITH_GC
#include <gc/gc.h>
void *
objc_malloc (size_t size)
{
void *res = (void *)(GC_malloc (size));
if (! res)
_objc_abort ("Virtual memory exhausted\n");
return res;
}
void *
objc_atomic_malloc (size_t size)
{
void *res = (void *)(GC_malloc_atomic (size));
if (! res)
_objc_abort ("Virtual memory exhausted\n");
return res;
}
void *
objc_realloc (void *mem, size_t size)
{
void *res = (void *)(GC_realloc (mem, size));
if (! res)
_objc_abort ("Virtual memory exhausted\n");
return res;
}
void *
objc_calloc (size_t nelem, size_t size)
{
/* Note that GC_malloc returns cleared memory (see documentation) so
there is no need to clear it. */
void *res = (void *)(GC_malloc (nelem * size));
if (! res)
_objc_abort ("Virtual memory exhausted\n");
return res;
}
void
objc.h: Updated comments. 2010-10-11 Nicola Pero <nicola.pero@meta-innovation.com> * objc/objc.h: Updated comments. * objc/objc-api.h: (object_copy): Added one argument; use a #define to maintain backwards-compatibility. Moved _objc_object_alloc, _objc_object_copy, _objc_object_dispose and objc_get_uninstalled_dtable into objc/deprecated/objc_get_uninstalled_dtable.h and objc/deprecated/objc_object_alloc.h. Include these files. * objc/deprecated/objc_get_uninstalled_dtable.h: New. * objc/deprecated/objc_object_alloc.h: New. * objc/runtime.h (set_getName): New. (sel_getType): New. (sel_getUid): New. (sel_registerName): New. (sel_registerTypedName): New. (sel_isEqual): New. (class_createInstance): New. (object_copy): New. (object_dispose): New. * objects.c: Do not include tconfig.h. Include gc_typed.h if building the garbage collection version. (__objc_object_alloc): Removed. (__objc_object_copy): Removed. (__objc_object_dispose): Removed. (class_createInstance): New from code in class_create_instance. Cast second argument of GC_malloc_explicitly_typed. Use objc_calloc. Do not call _objc_object_alloc. (class_create_instance): Call class_createInstance. (object_copy): Added extraBytes argument. Do not call _objc_object_copy. (object_dispose): Do not call _objc_object_dispose. * memory.c (objc_free): When using garbage collection, mark the argument as unused. * selector.c (sel_getName): New. (sel_get_name): Call sel_getName. (sel_getType): New. (sel_get_type): Call sel_getType. (sel_registerName): New. (sel_register_name): Call sel_registerName. (sel_registerTypedName): New. (sel_register_typed_name): Call sel_registerTypedName. (sel_getUid): New. (sel_get_uid): Call sel_getUid. From-SVN: r165264
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objc_free (void *mem __attribute__ ((__unused__)))
{
return;
}
#else
void *
objc_malloc (size_t size)
{
void *res = (void *)(malloc (size));
if (! res)
_objc_abort ("Virtual memory exhausted\n");
return res;
}
void *
objc_atomic_malloc (size_t size)
{
void *res = (void *)(malloc (size));
if (! res)
_objc_abort ("Virtual memory exhausted\n");
return res;
}
void *
objc_realloc (void *mem, size_t size)
{
void *res = (void *)(realloc (mem, size));
if (! res)
_objc_abort ("Virtual memory exhausted\n");
return res;
}
void *
objc_calloc (size_t nelem, size_t size)
{
void *res = (void *)(calloc (nelem, size));
if (! res)
_objc_abort ("Virtual memory exhausted\n");
return res;
}
void
objc_free (void *mem)
{
free (mem);
}
#endif /* !OBJC_WITH_GC */