1 /* mm/boehm.c - interface for boehm gc
3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
4 R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser,
5 M. Probst, S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck,
6 P. Tomsich, J. Wenninger
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
25 Contact: cacao@complang.tuwien.ac.at
29 $Id: boehm.c 862 2004-01-06 23:42:01Z stefan $
40 #include "threads/thread.h"
41 #include "toolbox/loging.h"
43 /* this is temporary workaround */
44 #if defined(__X86_64__)
51 static void *stackcall_twoargs(struct otherstackcall *p)
53 return (*p->p2)(p->p, p->l);
57 static void *stackcall_malloc(void *p, u4 bytelength)
59 return GC_MALLOC(bytelength);
63 static void *stackcall_malloc_atomic(void *p, u4 bytelength)
65 return GC_MALLOC_ATOMIC(bytelength);
69 static void *stackcall_malloc_uncollectable(void *p, u4 bytelength)
71 return GC_MALLOC_UNCOLLECTABLE(bytelength);
75 static void *stackcall_realloc(void *p, u4 bytelength)
77 return GC_REALLOC(p, bytelength);
80 static void *stackcall_free(void *p, u4 bytelength)
88 #define MAINTHREADCALL(r,m,pp,ll) \
89 if (currentThread == NULL || currentThread == mainThread) { \
92 struct otherstackcall sc; \
96 r = (*asm_switchstackandcall)(CONTEXT(mainThread).usedStackTop, \
98 (void**)&(CONTEXT(currentThread).usedStackTop), &sc); \
101 #define MAINTHREADCALL(r,m,pp,ll) \
106 void *heap_alloc_uncollectable(u4 bytelength)
109 MAINTHREADCALL(result, stackcall_malloc_uncollectable, NULL, bytelength);
114 void runboehmfinalizer(void *o, void *p)
116 java_objectheader *ob = (java_objectheader *) o;
117 asm_calljavafunction(ob->vftbl->class->finalizer, ob, NULL, NULL, NULL);
119 /* if we had an exception in the finalizer, ignore it */
120 *exceptionptr = NULL;
124 void *heap_allocate(u4 bytelength, bool references, methodinfo *finalizer)
129 MAINTHREADCALL(result, stackcall_malloc, NULL, bytelength);
132 MAINTHREADCALL(result, stackcall_malloc_atomic, NULL, bytelength);
136 GC_REGISTER_FINALIZER(result, runboehmfinalizer, 0, 0, 0);
142 void *heap_reallocate(void *p, u4 bytelength)
146 MAINTHREADCALL(result, stackcall_realloc, p, bytelength);
151 void heap_free(void *p)
155 MAINTHREADCALL(result, stackcall_free, p, 0);
159 void heap_init(u4 size, u4 startsize, void **stackbottom)
178 dolog("Garbage Collection: previous/now = %d / %d ",
186 * These are local overrides for various environment variables in Emacs.
187 * Please do not remove this and leave it at the end of the file, where
188 * Emacs will automagically detect them.
189 * ---------------------------------------------------------------------
192 * indent-tabs-mode: t