#include "mono/utils/mono-compiler.h"
#include "mono/utils/parse.h"
#include "mono/utils/memfuncs.h"
+#ifdef HAVE_SGEN_GC
+#include "mono/sgen/sgen-conf.h"
+#endif
+
+/* h indicates whether to hide or just tag.
+ * (-!!h ^ p) is used instead of (h ? ~p : p) to avoid multiple mentions of p.
+ */
+#define MONO_GC_HIDE_POINTER(p,t,h) ((gpointer)(((-(size_t)!!(h) ^ (size_t)(p)) & ~(size_t)3) | ((t) & (size_t)3)))
+#define MONO_GC_REVEAL_POINTER(p,h) ((gpointer)((-(size_t)!!(h) ^ (size_t)(p)) & ~(size_t)3))
+
+#define MONO_GC_POINTER_TAG(p) ((size_t)(p) & (size_t)3)
+
+#define MONO_GC_HANDLE_OCCUPIED_MASK (1)
+#define MONO_GC_HANDLE_VALID_MASK (2)
+#define MONO_GC_HANDLE_TAG_MASK (MONO_GC_HANDLE_OCCUPIED_MASK | MONO_GC_HANDLE_VALID_MASK)
+
+#define MONO_GC_HANDLE_METADATA_POINTER(p,h) (MONO_GC_HIDE_POINTER ((p), MONO_GC_HANDLE_OCCUPIED_MASK, (h)))
+#define MONO_GC_HANDLE_OBJECT_POINTER(p,h) (MONO_GC_HIDE_POINTER ((p), MONO_GC_HANDLE_OCCUPIED_MASK | MONO_GC_HANDLE_VALID_MASK, (h)))
+
+#define MONO_GC_HANDLE_OCCUPIED(slot) ((size_t)(slot) & MONO_GC_HANDLE_OCCUPIED_MASK)
+#define MONO_GC_HANDLE_VALID(slot) ((size_t)(slot) & MONO_GC_HANDLE_VALID_MASK)
+
+#define MONO_GC_HANDLE_TAG(slot) ((size_t)(slot) & MONO_GC_HANDLE_TAG_MASK)
+
+#define MONO_GC_HANDLE_IS_OBJECT_POINTER(slot) (MONO_GC_HANDLE_TAG (slot) == (MONO_GC_HANDLE_OCCUPIED_MASK | MONO_GC_HANDLE_VALID_MASK))
+#define MONO_GC_HANDLE_IS_METADATA_POINTER(slot) (MONO_GC_HANDLE_TAG (slot) == MONO_GC_HANDLE_OCCUPIED_MASK)
+
+typedef enum {
+ HANDLE_TYPE_MIN = 0,
+ HANDLE_WEAK = HANDLE_TYPE_MIN,
+ HANDLE_WEAK_TRACK,
+ HANDLE_NORMAL,
+ HANDLE_PINNED,
+ HANDLE_TYPE_MAX
+} GCHandleType;
+
+#define GC_HANDLE_TYPE_IS_WEAK(x) ((x) <= HANDLE_WEAK_TRACK)
+
+#define MONO_GC_HANDLE_TYPE_SHIFT (3)
+#define MONO_GC_HANDLE_TYPE_MASK ((1 << MONO_GC_HANDLE_TYPE_SHIFT) - 1)
+#define MONO_GC_HANDLE_TYPE(x) (((x) & MONO_GC_HANDLE_TYPE_MASK) - 1)
+#define MONO_GC_HANDLE_SLOT(x) ((x) >> MONO_GC_HANDLE_TYPE_SHIFT)
+#define MONO_GC_HANDLE_TYPE_IS_WEAK(x) ((x) <= HANDLE_WEAK_TRACK)
+#define MONO_GC_HANDLE(slot, type) (((slot) << MONO_GC_HANDLE_TYPE_SHIFT) | (((type) & MONO_GC_HANDLE_TYPE_MASK) + 1))
typedef struct {
guint minor_gc_count;
extern GCStats gc_stats;
+#ifdef HAVE_SGEN_GC
+typedef SgenDescriptor MonoGCDescriptor;
+#define MONO_GC_DESCRIPTOR_NULL SGEN_DESCRIPTOR_NULL
+#else
+typedef void* MonoGCDescriptor;
+#define MONO_GC_DESCRIPTOR_NULL NULL
+#endif
+
/*
* Try to register a foreign thread with the GC, if we fail or the backend
* can't cope with this concept - we return FALSE.
gboolean mono_gc_parse_environment_string_extract_number (const char *str, size_t *out);
-void* mono_gc_make_descr_for_object (gsize *bitmap, int numbits, size_t obj_size);
-void* mono_gc_make_descr_for_array (int vector, gsize *elem_bitmap, int numbits, size_t elem_size);
+MonoGCDescriptor mono_gc_make_descr_for_object (gsize *bitmap, int numbits, size_t obj_size);
+MonoGCDescriptor mono_gc_make_descr_for_array (int vector, gsize *elem_bitmap, int numbits, size_t elem_size);
/* simple interface for data structures needed in the runtime */
-void* mono_gc_make_descr_from_bitmap (gsize *bitmap, int numbits);
+MonoGCDescriptor mono_gc_make_descr_from_bitmap (gsize *bitmap, int numbits);
/* Return a root descriptor for a root with all refs */
-void* mono_gc_make_root_descr_all_refs (int numbits);
+MonoGCDescriptor mono_gc_make_root_descr_all_refs (int numbits);
/* Return the bitmap encoded by a descriptor */
-gsize* mono_gc_get_bitmap_for_descr (void *descr, int *numbits);
+gsize* mono_gc_get_bitmap_for_descr (MonoGCDescriptor descr, int *numbits);
/*
These functions must be used when it's possible that either destination is not