remove gc

1 files changed, 0 insertions, 233 deletions

diff --git a/gc/include/private/gc_hdrs.h b/gc/include/private/gc_hdrs.h
deleted file mode 100644
index 96749ab..0000000
--- a/gc/include/private/gc_hdrs.h
+++ /dev/null
@@ -1,233 +0,0 @@
-/* 
- * Copyright 1988, 1989 Hans-J. Boehm, Alan J. Demers
- * Copyright (c) 1991-1994 by Xerox Corporation.  All rights reserved.
- *
- * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
- * OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
- *
- * Permission is hereby granted to use or copy this program
- * for any purpose,  provided the above notices are retained on all copies.
- * Permission to modify the code and to distribute modified code is granted,
- * provided the above notices are retained, and a notice that the code was
- * modified is included with the above copyright notice.
- */
-/* Boehm, July 11, 1995 11:54 am PDT */
-# ifndef GC_HEADERS_H
-# define GC_HEADERS_H
-typedef struct hblkhdr hdr;
-
-# if CPP_WORDSZ != 32 && CPP_WORDSZ < 36
-	--> Get a real machine.
-# endif
-
-/*
- * The 2 level tree data structure that is used to find block headers.
- * If there are more than 32 bits in a pointer, the top level is a hash
- * table.
- *
- * This defines HDR, GET_HDR, and SET_HDR, the main macros used to
- * retrieve and set object headers.
- *
- * Since 5.0 alpha 5, we can also take advantage of a header lookup
- * cache.  This is a locally declared direct mapped cache, used inside
- * the marker.  The HC_GET_HDR macro uses and maintains this
- * cache.  Assuming we get reasonable hit rates, this shaves a few
- * memory references from each pointer validation.
- */
-
-# if CPP_WORDSZ > 32
-#   define HASH_TL
-# endif
-
-/* Define appropriate out-degrees for each of the two tree levels	*/
-# ifdef SMALL_CONFIG
-#   define LOG_BOTTOM_SZ 11
-	/* Keep top index size reasonable with smaller blocks. */
-# else
-#   define LOG_BOTTOM_SZ 10
-# endif
-# ifndef HASH_TL
-#   define LOG_TOP_SZ (WORDSZ - LOG_BOTTOM_SZ - LOG_HBLKSIZE)
-# else
-#   define LOG_TOP_SZ 11
-# endif
-# define TOP_SZ (1 << LOG_TOP_SZ)
-# define BOTTOM_SZ (1 << LOG_BOTTOM_SZ)
-
-#ifndef SMALL_CONFIG
-# define USE_HDR_CACHE
-#endif
-
-/* #define COUNT_HDR_CACHE_HITS  */
-
-extern hdr * GC_invalid_header; /* header for an imaginary block 	*/
-				/* containing no objects.		*/
-
-
-/* Check whether p and corresponding hhdr point to long or invalid	*/
-/* object.  If so, advance hhdr	to					*/
-/* beginning of	block, or set hhdr to GC_invalid_header.		*/
-#define ADVANCE(p, hhdr, source) \
-	    { \
-	      hdr * new_hdr = GC_invalid_header; \
-              p = GC_find_start(p, hhdr, &new_hdr); \
-	      hhdr = new_hdr; \
-    	    }
-
-#ifdef USE_HDR_CACHE
-
-# ifdef COUNT_HDR_CACHE_HITS
-    extern word GC_hdr_cache_hits;
-    extern word GC_hdr_cache_misses;
-#   define HC_HIT() ++GC_hdr_cache_hits
-#   define HC_MISS() ++GC_hdr_cache_misses
-# else
-#   define HC_HIT()
-#   define HC_MISS()
-# endif
-
-  typedef struct hce {
-    word block_addr;  	/* right shifted by LOG_HBLKSIZE */
-    hdr * hce_hdr;
-  } hdr_cache_entry;
-
-# define HDR_CACHE_SIZE 8  /* power of 2 */
-
-# define DECLARE_HDR_CACHE \
-	hdr_cache_entry hdr_cache[HDR_CACHE_SIZE]
-
-# define INIT_HDR_CACHE BZERO(hdr_cache, sizeof(hdr_cache));
-
-# define HCE(h) hdr_cache + (((word)(h) >> LOG_HBLKSIZE) & (HDR_CACHE_SIZE-1))
-
-# define HCE_VALID_FOR(hce,h) ((hce) -> block_addr == \
-				((word)(h) >> LOG_HBLKSIZE))
-
-# define HCE_HDR(h) ((hce) -> hce_hdr)
-
-
-/* Analogous to GET_HDR, except that in the case of large objects, it	*/
-/* Returns the header for the object beginning, and updates p.		*/
-/* Returns &GC_bad_header instead of 0.  All of this saves a branch	*/
-/* in the fast path.							*/
-# define HC_GET_HDR(p, hhdr, source) \
-	{ \
-	  hdr_cache_entry * hce = HCE(p); \
-	  if (HCE_VALID_FOR(hce, p)) { \
-	    HC_HIT(); \
-	    hhdr = hce -> hce_hdr; \
-	  } else { \
-	    HC_MISS(); \
-	    GET_HDR(p, hhdr); \
-            if (IS_FORWARDING_ADDR_OR_NIL(hhdr)) { \
-	      ADVANCE(p, hhdr, source); \
-	    } else { \
-	      hce -> block_addr = (word)(p) >> LOG_HBLKSIZE; \
-	      hce -> hce_hdr = hhdr; \
-	    } \
-	  } \
-	}
-
-#else /* !USE_HDR_CACHE */
-
-# define DECLARE_HDR_CACHE
-
-# define INIT_HDR_CACHE
-
-# define HC_GET_HDR(p, hhdr, source) \
-	{ \
-	  GET_HDR(p, hhdr); \
-          if (IS_FORWARDING_ADDR_OR_NIL(hhdr)) { \
-	    ADVANCE(p, hhdr, source); \
-	  } \
-	}
-#endif
-
-typedef struct bi {
-    hdr * index[BOTTOM_SZ];
-	/*
- 	 * The bottom level index contains one of three kinds of values:
-	 * 0 means we're not responsible for this block,
-	 *   or this is a block other than the first one in a free block.
-	 * 1 < (long)X <= MAX_JUMP means the block starts at least
-	 *        X * HBLKSIZE bytes before the current address.
-	 * A valid pointer points to a hdr structure. (The above can't be
-	 * valid pointers due to the GET_MEM return convention.)
-	 */
-    struct bi * asc_link;	/* All indices are linked in	*/
-    				/* ascending order...		*/
-    struct bi * desc_link;	/* ... and in descending order.	*/
-    word key;			/* high order address bits.	*/
-# ifdef HASH_TL
-    struct bi * hash_link;	/* Hash chain link.		*/
-# endif
-} bottom_index;
-
-/* extern bottom_index GC_all_nils; - really part of GC_arrays */
-
-/* extern bottom_index * GC_top_index []; - really part of GC_arrays */
-				/* Each entry points to a bottom_index.	*/
-				/* On a 32 bit machine, it points to 	*/
-				/* the index for a set of high order	*/
-				/* bits equal to the index.  For longer	*/
-				/* addresses, we hash the high order	*/
-				/* bits to compute the index in 	*/
-				/* GC_top_index, and each entry points	*/
-				/* to a hash chain.			*/
-				/* The last entry in each chain is	*/
-				/* GC_all_nils.				*/
-
-
-# define MAX_JUMP (HBLKSIZE - 1)
-
-# define HDR_FROM_BI(bi, p) \
-		((bi)->index[((word)(p) >> LOG_HBLKSIZE) & (BOTTOM_SZ - 1)])
-# ifndef HASH_TL
-#   define BI(p) (GC_top_index \
-		[(word)(p) >> (LOG_BOTTOM_SZ + LOG_HBLKSIZE)])
-#   define HDR_INNER(p) HDR_FROM_BI(BI(p),p)
-#   ifdef SMALL_CONFIG
-#	define HDR(p) GC_find_header((ptr_t)(p))
-#   else
-#	define HDR(p) HDR_INNER(p)
-#   endif
-#   define GET_BI(p, bottom_indx) (bottom_indx) = BI(p)
-#   define GET_HDR(p, hhdr) (hhdr) = HDR(p)
-#   define SET_HDR(p, hhdr) HDR_INNER(p) = (hhdr)
-#   define GET_HDR_ADDR(p, ha) (ha) = &(HDR_INNER(p))
-# else /* hash */
-/*  Hash function for tree top level */
-#   define TL_HASH(hi) ((hi) & (TOP_SZ - 1))
-/*  Set bottom_indx to point to the bottom index for address p */
-#   define GET_BI(p, bottom_indx) \
-	{ \
-	    register word hi = \
-	        (word)(p) >> (LOG_BOTTOM_SZ + LOG_HBLKSIZE); \
-	    register bottom_index * _bi = GC_top_index[TL_HASH(hi)]; \
-	    \
-	    while (_bi -> key != hi && _bi != GC_all_nils) \
-	    	_bi = _bi -> hash_link; \
-	    (bottom_indx) = _bi; \
-	}
-#   define GET_HDR_ADDR(p, ha) \
-	{ \
-	    register bottom_index * bi; \
-	    \
-	    GET_BI(p, bi);	\
-	    (ha) = &(HDR_FROM_BI(bi, p)); \
-	}
-#   define GET_HDR(p, hhdr) { register hdr ** _ha; GET_HDR_ADDR(p, _ha); \
-			      (hhdr) = *_ha; }
-#   define SET_HDR(p, hhdr) { register hdr ** _ha; GET_HDR_ADDR(p, _ha); \
-			      *_ha = (hhdr); }
-#   define HDR(p) GC_find_header((ptr_t)(p))
-# endif
-			    
-/* Is the result a forwarding address to someplace closer to the	*/
-/* beginning of the block or NIL?					*/
-# define IS_FORWARDING_ADDR_OR_NIL(hhdr) ((unsigned long) (hhdr) <= MAX_JUMP)
-
-/* Get an HBLKSIZE aligned address closer to the beginning of the block */
-/* h.  Assumes hhdr == HDR(h) and IS_FORWARDING_ADDR(hhdr).		*/
-# define FORWARDED_ADDR(h, hhdr) ((struct hblk *)(h) - (unsigned long)(hhdr))
-# endif /*  GC_HEADERS_H */