* Merged with default branch at rev 16f3633aaa5a.

[cacao.git] / src / mm / cacao-gc / gc.h

diff --git a/src/mm/cacao-gc/gc.h b/src/mm/cacao-gc/gc.h
index 0a9fbc2214a6d6edbf042ec43d6ac9112a04de63..ff2fa45e56c61abbf636ff3611d01de982c13157 100644 (file)
--- a/src/mm/cacao-gc/gc.h
+++ b/src/mm/cacao-gc/gc.h
@@ -1,6 +1,6 @@
 /* src/mm/cacao-gc/gc.h - main garbage collector header
 
-   Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
+   Copyright (C) 2006 R. Grafl, A. Krall, C. Kruegel,
    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
    J. Wenninger, Institut f. Computersprachen - TU Wien
@@ -22,11 +22,6 @@
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
    02110-1301, USA.
 
-   Contact: cacao@cacaojvm.org
-
-   Authors: Michael Starzinger
-
-
 */
 
 
@@ -39,12 +34,31 @@
 #define _GC_H
 
 
+#include "config.h"
+#include "vm/types.h"
+
+#if defined(ENABLE_THREADS)
+# include "threads/native/threads.h"
+#endif
+
+#include "toolbox/list.h"
+#include "vm/jit/replace.h"
+
+
+/* Configuration Switches *****************************************************/
+
+#define GCCONF_FINALIZER
+/*#define GCCONF_HDRFLAG_REFERENCING*/
+
+
 /* Debugging ******************************************************************/
 
 #define GC_DEBUGGING
+/*#define GC_DEBUGGING2*/
 
 #if !defined(NDEBUG) && defined(GC_DEBUGGING)
 # include <assert.h>
+# include "vmcore/options.h"
 # define GC_LOG(code) if (opt_verbosegc) { code; }
 # define GC_ASSERT(assertion) assert(assertion)
 #else
@@ -52,6 +66,39 @@
 # define GC_ASSERT(assertion)
 #endif
 
+#if !defined(NDEBUG) && defined(GC_DEBUGGING2)
+# define GC_LOG2(code) GC_LOG(code)
+#else
+# define GC_LOG2(code)
+#endif
+
+
+/* Development Break **********************************************************/
+
+#if 0 && defined(ENABLE_THREADS)
+# error "GC does not work with threads enabled!"
+#endif
+
+#if 1 && defined(ENABLE_INTRP)
+# error "GC does not work with interpreter enabled!"
+#endif
+
+#if 1 && defined(ENABLE_JVMTI)
+# error "GC does not work with JVMTI enabled!"
+#endif
+
+#if 1 && !defined(ENABLE_REPLACEMENT)
+# error "GC does only work with replacement enabled!"
+#endif
+
+#if 1 && !defined(ENABLE_HANDLES)
+# error "GC does only work with handles (indirection cells) enabled!"
+#endif
+
+#if 1 && !defined(__ALPHA__) && !defined(__ARM__) && !defined(__I386__) && !defined(__POWERPC__) && !defined(__X86_64__) && !defined(__M68K__) && !defined(__SPARC_64__)
+# error "GC was only ported to some architectures so far!"
+#endif
+
 
 /* Helper Macros **************************************************************/
 
@@ -60,7 +107,82 @@
 #define GC_TEST_FLAGS(obj, flags)  ((obj)->hdrflags  &  (flags))
 
 #define POINTS_INTO(ptr, ptr_start, ptr_end) \
-       ((void *) (ptr) > (ptr_start) && (void *) (ptr) < (ptr_end))
+       ((void *) (ptr) >= (ptr_start) && (void *) (ptr) < (ptr_end))
+
+#define GC_ALIGN_SIZE SIZEOF_VOID_P
+#define GC_ALIGN(val,size) ((((val) + (size) - 1) / (size)) * (size))
+
+
+/* Global Variables ***********************************************************/
+
+extern bool gc_pending;
+extern bool gc_notify_finalizer;
+
+extern list_t *gc_reflist;
+
+
+/* Structures *****************************************************************/
+
+typedef struct list_gcref_entry_t list_gcref_entry_t;
+
+struct list_gcref_entry_t {
+       listnode_t      linkage;
+       java_object_t **ref;
+#if !defined(NDEBUG)
+       s4              reftype;
+#endif
+};
+
+
+/* No-Thread specific stuff ***************************************************/
+
+#if defined(ENABLE_THREADS)
+# define GC_EXECUTIONSTATE (thread->es)
+# define GC_SOURCESTATE    (thread->ss)
+#else
+# define GC_EXECUTIONSTATE (_no_threads_executionstate)
+# define GC_SOURCESTATE    (_no_threads_sourcestate)
+
+extern executionstate_t *_no_threads_executionstate;
+extern sourcestate_t    *_no_threads_sourcestate;
+
+#endif
+
+
+/* Prototypes *****************************************************************/
+
+void gc_collect(s4 level);
+
+#if defined(ENABLE_THREADS)
+bool gc_suspend(threadobject *thread, u1 *pc, u1 *sp);
+#endif
+
+
+/* Statistics *****************************************************************/
+
+#if defined(ENABLE_STATISTICS)
+
+#define GCSTAT_INIT(cnt)  { (cnt) = 0; }
+#define GCSTAT_COUNT(cnt) { (cnt)++; }
+#define GCSTAT_DEC(cnt)   { (cnt)--; GC_ASSERT((cnt) >= 0); }
+#define GCSTAT_COUNT_MAX(cnt,max) { (cnt)++; if ((cnt) > (max)) (max) = (cnt); }
+
+extern int gcstat_collections;
+extern int gcstat_collections_forced;
+extern int gcstat_mark_depth;
+extern int gcstat_mark_depth_max;
+extern int gcstat_mark_count;
+
+void gcstat_println();
+
+#else /* defined(ENABLE_STATISTICS) */
+
+#define GCSTAT_INIT(cnt)
+#define GCSTAT_COUNT(cnt)
+#define GCSTAT_DEC(cnt)
+#define GCSTAT_COUNT_MAX(cnt,max)
+
+#endif /* defined(ENABLE_STATISTICS) */
 
 
 #endif /* _GC_H */