-#ifdef USE_JUMP_TABLES
-#define DEFAULT_JUMPTABLE_CHUNK_ELEMENTS 128
-
-typedef struct MonoJumpTableChunk {
- guint32 total;
- guint32 active;
- struct MonoJumpTableChunk *previous;
- /* gpointer entries[total]; */
-} MonoJumpTableChunk;
-
-static MonoJumpTableChunk* g_jumptable;
-#define mono_jumptable_lock() mono_mutex_lock (&jumptable_mutex)
-#define mono_jumptable_unlock() mono_mutex_unlock (&jumptable_mutex)
-static mono_mutex_t jumptable_mutex;
-
-static MonoJumpTableChunk*
-mono_create_jumptable_chunk (guint32 max_entries)
-{
- guint32 size = sizeof (MonoJumpTableChunk) + max_entries * sizeof(gpointer);
- MonoJumpTableChunk *chunk = (MonoJumpTableChunk*) g_new0 (guchar, size);
- chunk->total = max_entries;
- return chunk;
-}
-
-void
-mono_jumptable_init (void)
-{
- if (g_jumptable == NULL) {
- mono_mutex_init_recursive (&jumptable_mutex);
- g_jumptable = mono_create_jumptable_chunk (DEFAULT_JUMPTABLE_CHUNK_ELEMENTS);
- }
-}
-
-gpointer*
-mono_jumptable_add_entry (void)
-{
- return mono_jumptable_add_entries (1);
-}
-
-gpointer*
-mono_jumptable_add_entries (guint32 entries)
-{
- guint32 index;
- gpointer *result;
-
- mono_jumptable_init ();
- mono_jumptable_lock ();
- index = g_jumptable->active;
- if (index + entries >= g_jumptable->total) {
- /*
- * Grow jumptable, by adding one more chunk.
- * We cannot realloc jumptable, as there could be pointers
- * to existing jump table entries in the code, so instead
- * we just add one more chunk.
- */
- guint32 max_entries = entries;
- MonoJumpTableChunk *new_chunk;
-
- if (max_entries < DEFAULT_JUMPTABLE_CHUNK_ELEMENTS)
- max_entries = DEFAULT_JUMPTABLE_CHUNK_ELEMENTS;
- new_chunk = mono_create_jumptable_chunk (max_entries);
- /* Link old jumptable, so that we could free it up later. */
- new_chunk->previous = g_jumptable;
- g_jumptable = new_chunk;
- index = 0;
- }
- g_jumptable->active = index + entries;
- result = (gpointer*)((guchar*)g_jumptable + sizeof(MonoJumpTableChunk)) + index;
- mono_jumptable_unlock();
-
- return result;
-}
-
-void
-mono_jumptable_cleanup (void)
-{
- if (g_jumptable) {
- MonoJumpTableChunk *current = g_jumptable, *prev;
- while (current != NULL) {
- prev = current->previous;
- g_free (current);
- current = prev;
- }
- g_jumptable = NULL;
- mono_mutex_destroy (&jumptable_mutex);
- }
-}
-
-gpointer*
-mono_jumptable_get_entry (guint8 *code_ptr)
-{
- return mono_arch_jumptable_entry_from_code (code_ptr);
-}
-#endif
-
-/*
- * mini_replace_type:
- *
- * Replace the type used in the metadata stream with what the JIT will actually use during compilation.
-*/
-MonoType*
-mini_replace_type (MonoType *type)
-{
- type = mono_type_get_underlying_type (type);
- return mini_native_type_replace_type (type);
-}
-