+++ /dev/null
-/* src/mm/memory.h - macros for memory management
-
- Copyright (C) 1996-2005, 2006, 2007, 2008
- CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
-
- This file is part of CACAO.
-
- This program 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 2, or (at
- your option) any later version.
-
- This program 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.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA.
-
-*/
-
-
-#ifndef _MEMORY_H
-#define _MEMORY_H
-
-#include "config.h"
-
-#include <stdint.h>
-
-
-// Align the size of memory allocations to this size.
-#define ALIGNSIZE 8
-#define MEMORY_ALIGN(pos,size) ((((pos) + (size) - 1) / (size)) * (size))
-
-
-// Constants for ENABLE_MEMCHECK.
-
-#if defined(ENABLE_MEMCHECK)
-#define MEMORY_CANARY_SIZE 16
-#define MEMORY_CANARY_FIRST_BYTE 0xca
-#define MEMORY_CLEAR_BYTE 0xa5
-#endif
-
-
-// Includes.
-#include "mm/codememory.h"
-#include "mm/dumpmemory.hpp"
-#include "mm/gc.hpp"
-
-
-/*
----------------------------- Interface description -----------------------
-
-There are two possible choices for allocating memory:
-
- 1. explicit allocating / deallocating
-
- mem_alloc ..... allocate a memory block
- mem_free ...... free a memory block
- mem_realloc ... change size of a memory block (position may change)
- mem_usage ..... amount of allocated memory
-
-There are some useful macros:
-
- NEW (type) ....... allocate memory for an element of type `type`
- FREE (ptr,type) .. free memory
-
- MNEW (type,num) .. allocate memory for an array
- MFREE (ptr,type,num) .. free memory
-
- MREALLOC (ptr,type,num1,num2) .. enlarge the array to size num2
-
--------------------------------------------------------------------------------
-
-Some more macros:
-
- MEMORY_ALIGN (pos, size) ... make pos divisible by size. always returns an
- address >= pos.
-
-
- OFFSET (s,el) ....... returns the offset of 'el' in structure 's' in bytes.
-
- MCOPY (dest,src,type,num) ... copy 'num' elements of type 'type'.
-
-
-*/
-
-#define PADDING(pos,size) (MEMORY_ALIGN((pos),(size)) - (pos))
-#define OFFSET(s,el) ((int32_t) ((ptrint) &(((s*) 0)->el)))
-
-
-#define NEW(type) ((type *) mem_alloc(sizeof(type)))
-#define FREE(ptr,type) mem_free((ptr), sizeof(type))
-
-#define MNEW(type,num) ((type *) mem_alloc(sizeof(type) * (num)))
-#define MFREE(ptr,type,num) mem_free((ptr), sizeof(type) * (num))
-
-#define MREALLOC(ptr,type,num1,num2) mem_realloc((ptr), sizeof(type) * (num1), \
- sizeof(type) * (num2))
-
-
-#define MCOPY(dest,src,type,num) memcpy((dest), (src), sizeof(type) * (num))
-#define MSET(ptr,byte,type,num) memset((ptr), (byte), sizeof(type) * (num))
-#define MZERO(ptr,type,num) MSET(ptr,0,type,num)
-#define MMOVE(dest,src,type,num) memmove((dest), (src), sizeof(type) * (num))
-
-
-/* GC macros (boehm only) *****************************************************/
-
-#if defined(ENABLE_GC_BOEHM)
-
-/* Uncollectable memory which can contain references */
-
-#define GCNEW_UNCOLLECTABLE(type,num) ((type *) heap_alloc_uncollectable(sizeof(type) * (num)))
-
-#define GCNEW(type) heap_alloc(sizeof(type), true, NULL, true)
-#define GCMNEW(type,num) heap_alloc(sizeof(type) * (num), true, NULL, true)
-
-#define GCFREE(ptr) heap_free((ptr))
-
-#endif
-
-
-/* function prototypes ********************************************************/
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-bool memory_init(void);
-
-void memory_mprotect(void *addr, size_t len, int prot);
-
-void *memory_checked_alloc(size_t size);
-
-void *memory_cnew(int32_t size);
-void memory_cfree(void *p, int32_t size);
-
-void *mem_alloc(int32_t size);
-void mem_free(void *m, int32_t size);
-void *mem_realloc(void *src, int32_t len1, int32_t len2);
-
-#if defined(ENABLE_THREADS)
-bool memory_start_thread(void);
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _MEMORY_H */
-
-
-/*
- * These are local overrides for various environment variables in Emacs.
- * Please do not remove this and leave it at the end of the file, where
- * Emacs will automagically detect them.
- * ---------------------------------------------------------------------
- * Local variables:
- * mode: c
- * indent-tabs-mode: t
- * c-basic-offset: 4
- * tab-width: 4
- * End:
- * vim:noexpandtab:sw=4:ts=4:
- */
projects / cacao.git / blobdiff