#ifndef _backpatch_h_
#define _backpatch_h_

typedef struct _backpatch_t
{
  struct _backpatch_t *next;   /* Next in linked list.                  */
  int32 offset_location;       /* Bit index from block to index start.  */
  int32 const_offset;          /* Add this to src addr.                 */
  int8 num_bits;               /* Number of bits to be patched.         */
  int8 relative_p;             /* Boolean: relative offset?             */
  struct _Block *target;       /* Target block; we jmp to its code ptr. */
} backpatch_t;

extern void backpatch_apply_and_free (struct _Block *b, backpatch_t *p);
extern void backpatch_add (struct _Block *b, int offset_location, int num_bits,
			   BOOL relative_p, int const_offset,
			   struct _Block *target);

#include "block.h"

#endif  /* !_backpatch_h_ */