-/************************* toolbox/memory.h ************************************
+/* src/mm/memory.h - macros for memory management
- Copyright (c) 1997 A. Krall, R. Grafl, M. Gschwind, M. Probst
+ Copyright (C) 1996-2005, 2006, 2007, 2008
+ CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
- See file COPYRIGHT for information on usage and disclaimer of warranties
+ This file is part of CACAO.
- Macros for memory management
+ 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.
- Authors: Reinhard Grafl EMAIL: cacao@complang.tuwien.ac.at
+ 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.
- Last Change: 1996/10/03
+ 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.
-*******************************************************************************/
+*/
-#include "types.h"
-#ifdef USE_BOEHM
-/* Uncollectable memory which can contain references */
-void *heap_alloc_uncollectable(u4 bytelen);
-#define GCNEW(type,num) heap_alloc_uncollectable(sizeof(type) * (num))
+#ifndef _MEMORY_H
+#define _MEMORY_H
+
+#include "config.h"
+
+#ifdef __cplusplus
+extern "C" {
#endif
-#define ALIGN(pos,size) ( ( ((pos)+(size)-1) / (size))*(size) )
-#define PADDING(pos,size) ( ALIGN((pos),(size)) - (pos) )
-#define OFFSET(s,el) ( (int) ( (size_t) &( ((s*)0) -> el ) ) )
+#include <string.h>
+#include "vm/types.h"
-#define NEW(type) ((type*) mem_alloc ( sizeof(type) ))
-#define FREE(ptr,type) mem_free (ptr, sizeof(type) )
+#include "mm/codememory.h"
+#include "mm/dumpmemory.h"
-#define LNEW(type) ((type*) lit_mem_alloc ( sizeof(type) ))
-#define LFREE(ptr,type) lit_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) )
+/* constants for ENABLE_MEMCHECK **********************************************/
-#define DNEW(type) ((type*) mem_alloc ( sizeof(type) ))
-#define DMNEW(type,num) ((type*) mem_alloc ( sizeof(type) * (num) ))
-#define DMREALLOC(ptr,type,num1,num2) mem_realloc (ptr, sizeof(type)*(num1),\
- sizeof(type) * (num2) )
+#if defined(ENABLE_MEMCHECK)
+#define MEMORY_CANARY_SIZE 16
+#define MEMORY_CANARY_FIRST_BYTE 0xca
+#define MEMORY_CLEAR_BYTE 0xa5
+#endif /* defined(ENABLE_MEMCHECK) */
-#define MCOPY(dest,src,type,num) memcpy (dest,src, sizeof(type)* (num) )
-#ifdef USE_CODEMMAP
-#define CNEW(type,num) ((type*) mem_mmap ( sizeof(type) * (num) ))
-#define CFREE(ptr,num)
-#else
-#define CNEW(type,num) ((type*) mem_alloc ( sizeof(type) * (num) ))
-#define CFREE(ptr,num) mem_free (ptr, num)
-#endif
+/* internal includes **********************************************************/
+
+#include "mm/gc-common.h"
+
-void *mem_alloc(int length);
-void *mem_mmap(int length);
-void *lit_mem_alloc(int length);
-void mem_free(void *m, int length);
-void lit_mem_free(void *m, int length);
-void *mem_realloc(void *m, int len1, int len2);
-long int mem_usage();
-
-void *dump_alloc(int length);
-void *dump_realloc(void *m, int len1, int len2);
-long int dump_size();
-void dump_release(long int size);
-
-void mem_usagelog(int givewarnings);
-
-
-
/*
---------------------------- Interface description -----------------------
mem_realloc ... change size of a memory block (position may change)
mem_usage ..... amount of allocated memory
-
- 2. explicit allocating, automatic deallocating
-
- dump_alloc .... allocate a memory block in the dump area
- dump_realloc .. change size of a memory block (position may change)
- dump_size ..... marks the current top of dump
- dump_release .. free all memory requested after the mark
-
-
There are some useful macros:
NEW (type) ....... allocate memory for an element of type `type`
MREALLOC (ptr,type,num1,num2) .. enlarge the array to size num2
-These macros do the same except they operate on the dump area:
-
- DNEW, DMNEW, DMREALLOC (there is no DFREE)
-
-
-------------------------------------------------------------------------------
Some more macros:
- ALIGN (pos, size) ... make pos divisible by size. always returns an
- address >= pos.
+ 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.
*/
+
+#define MEMORY_ALIGN(pos,size) ((((pos) + (size) - 1) / (size)) * (size))
+#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 ********************************************************/
+
+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:
+ */
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