gcc/libobjc/memory.c

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/* GNU Objective C Runtime Memory allocation functions
Copyright (C) 1993, 1994, 1995, 1996, 1997, 2002, 2009, 2010
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.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
2010-10-11 01:28:12 +02:00
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 */