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 984 2004-03-28 23:08:07Z twisti $
33 #if defined(USE_THREADS) && defined(NATIVE_THREADS) && defined(__LINUX__)
34 #define GC_LINUX_THREADS
43 #include "threads/thread.h"
44 #include "toolbox/loging.h"
48 static void *stackcall_twoargs(struct otherstackcall *p)
50 return (*p->p2)(p->p, p->l);
54 static void *stackcall_malloc(void *p, u4 bytelength)
56 return GC_MALLOC(bytelength);
60 static void *stackcall_malloc_atomic(void *p, u4 bytelength)
62 return GC_MALLOC_ATOMIC(bytelength);
66 static void *stackcall_malloc_uncollectable(void *p, u4 bytelength)
68 return GC_MALLOC_UNCOLLECTABLE(bytelength);
72 static void *stackcall_realloc(void *p, u4 bytelength)
74 return GC_REALLOC(p, bytelength);
77 static void *stackcall_free(void *p, u4 bytelength)
84 #if defined(USE_THREADS) && !defined(NATIVE_THREADS)
85 #define MAINTHREADCALL(r,m,pp,ll) \
86 if (currentThread == NULL || currentThread == mainThread) { \
89 struct otherstackcall sc; \
93 r = (*asm_switchstackandcall)(CONTEXT(mainThread).usedStackTop, \
95 (void**)&(CONTEXT(currentThread).usedStackTop), &sc); \
98 #define MAINTHREADCALL(r,m,pp,ll) \
103 void *heap_alloc_uncollectable(u4 bytelength)
106 MAINTHREADCALL(result, stackcall_malloc_uncollectable, NULL, bytelength);
111 void runboehmfinalizer(void *o, void *p)
113 java_objectheader *ob = (java_objectheader *) o;
114 asm_calljavafunction(ob->vftbl->class->finalizer, ob, NULL, NULL, NULL);
116 /* if we had an exception in the finalizer, ignore it */
117 *exceptionptr = NULL;
121 void *heap_allocate(u4 bytelength, bool references, methodinfo *finalizer)
126 MAINTHREADCALL(result, stackcall_malloc, NULL, bytelength);
129 MAINTHREADCALL(result, stackcall_malloc_atomic, NULL, bytelength);
133 log_text("java_lang_OutOfMemoryError");
134 *exceptionptr = new_exception(string_java_lang_OutOfMemoryError);
139 GC_REGISTER_FINALIZER(result, runboehmfinalizer, 0, 0, 0);
145 void *heap_reallocate(void *p, u4 bytelength)
149 MAINTHREADCALL(result, stackcall_realloc, p, bytelength);
154 void heap_free(void *p)
158 MAINTHREADCALL(result, stackcall_free, p, 0);
162 void heap_init(u4 size, u4 startsize, void **stackbottom)
182 dolog("Garbage Collection: previous/now = %d / %d ",
189 s8 gc_get_heap_size()
191 return GC_get_heap_size();
195 s8 gc_get_free_bytes()
197 return GC_get_free_bytes();
201 void gc_finalize_all()
208 * These are local overrides for various environment variables in Emacs.
209 * Please do not remove this and leave it at the end of the file, where
210 * Emacs will automagically detect them.
211 * ---------------------------------------------------------------------
214 * indent-tabs-mode: t