Updates from 0.2.1 into 0.2.1-inu-1.5release-0-2-1-inu-1-5

1 files changed, 0 insertions, 754 deletions

diff --git a/gc/cord/gc.h b/gc/cord/gc.h
deleted file mode 100644
index 3061409..0000000
--- a/gc/cord/gc.h
+++ /dev/null
@@ -1,754 +0,0 @@
-/* 
- * Copyright 1988, 1989 Hans-J. Boehm, Alan J. Demers
- * Copyright (c) 1991-1995 by Xerox Corporation.  All rights reserved.
- * Copyright 1996 by Silicon Graphics.  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.
- */
-
-/*
- * Note that this defines a large number of tuning hooks, which can
- * safely be ignored in nearly all cases.  For normal use it suffices
- * to call only GC_MALLOC and perhaps GC_REALLOC.
- * For better performance, also look at GC_MALLOC_ATOMIC, and
- * GC_enable_incremental.  If you need an action to be performed
- * immediately before an object is collected, look at GC_register_finalizer.
- * If you are using Solaris threads, look at the end of this file.
- * Everything else is best ignored unless you encounter performance
- * problems.
- */
- 
-#ifndef _GC_H
-
-# define _GC_H
-# define __GC
-# include <stddef.h>
-
-#if defined(__CYGWIN32__) && defined(GC_USE_DLL)
-#include "libgc_globals.h"
-#endif
-
-#if defined(_MSC_VER) && defined(_DLL)
-# ifdef GC_BUILD
-#   define GC_API __declspec(dllexport)
-# else
-#   define GC_API __declspec(dllimport)
-# endif
-#endif
-
-#if defined(__WATCOMC__) && defined(GC_DLL)
-# ifdef GC_BUILD
-#   define GC_API extern __declspec(dllexport)
-# else
-#   define GC_API extern __declspec(dllimport)
-# endif
-#endif
-
-#ifndef GC_API
-#define GC_API extern
-#endif
-
-# if defined(__STDC__) || defined(__cplusplus)
-#   define GC_PROTO(args) args
-    typedef void * GC_PTR;
-# else
-#   define GC_PROTO(args) ()
-    typedef char * GC_PTR;
-#  endif
-
-# ifdef __cplusplus
-    extern "C" {
-# endif
-
-
-/* Define word and signed_word to be unsigned and signed types of the 	*/
-/* size as char * or void *.  There seems to be no way to do this	*/
-/* even semi-portably.  The following is probably no better/worse 	*/
-/* than almost anything else.						*/
-/* The ANSI standard suggests that size_t and ptr_diff_t might be 	*/
-/* better choices.  But those appear to have incorrect definitions	*/
-/* on may systems.  Notably "typedef int size_t" seems to be both	*/
-/* frequent and WRONG.							*/
-typedef unsigned long GC_word;
-typedef long GC_signed_word;
-
-/* Public read-only variables */
-
-GC_API GC_word GC_gc_no;/* Counter incremented per collection.  	*/
-			/* Includes empty GCs at startup.		*/
-			
-
-/* Public R/W variables */
-
-GC_API GC_PTR (*GC_oom_fn) GC_PROTO((size_t bytes_requested));
-			/* When there is insufficient memory to satisfy */
-			/* an allocation request, we return		*/
-			/* (*GC_oom_fn)().  By default this just	*/
-			/* returns 0.					*/
-			/* If it returns, it must return 0 or a valid	*/
-			/* pointer to a previously allocated heap 	*/
-			/* object.					*/
-
-GC_API int GC_find_leak;
-			/* Do not actually garbage collect, but simply	*/
-			/* report inaccessible memory that was not	*/
-			/* deallocated with GC_free.  Initial value	*/
-			/* is determined by FIND_LEAK macro.		*/
-
-GC_API int GC_quiet;	/* Disable statistics output.  Only matters if	*/
-			/* collector has been compiled with statistics	*/
-			/* enabled.  This involves a performance cost,	*/
-			/* and is thus not the default.			*/
-
-GC_API int GC_finalize_on_demand;
-			/* If nonzero, finalizers will only be run in 	*/
-			/* response to an eplit GC_invoke_finalizers	*/
-			/* call.  The default is determined by whether	*/
-			/* the FINALIZE_ON_DEMAND macro is defined	*/
-			/* when the collector is built.			*/
-
-GC_API int GC_java_finalization;
-			/* Mark objects reachable from finalizable 	*/
-			/* objects in a separate postpass.  This makes	*/
-			/* it a bit safer to use non-topologically-	*/
-			/* ordered finalization.  Default value is	*/
-			/* determined by JAVA_FINALIZATION macro.	*/
-
-GC_API int GC_dont_gc;	/* Dont collect unless explicitly requested, e.g. */
-			/* because it's not safe.			  */
-
-GC_API int GC_dont_expand;
-			/* Dont expand heap unless explicitly requested */
-			/* or forced to.				*/
-
-GC_API int GC_full_freq;    /* Number of partial collections between	*/
-			    /* full collections.  Matters only if	*/
-			    /* GC_incremental is set.			*/
-			
-GC_API GC_word GC_non_gc_bytes;
-			/* Bytes not considered candidates for collection. */
-			/* Used only to control scheduling of collections. */
-
-GC_API GC_word GC_free_space_divisor;
-			/* We try to make sure that we allocate at 	*/
-			/* least N/GC_free_space_divisor bytes between	*/
-			/* collections, where N is the heap size plus	*/
-			/* a rough estimate of the root set size.	*/
-			/* Initially, GC_free_space_divisor = 4.	*/
-			/* Increasing its value will use less space	*/
-			/* but more collection time.  Decreasing it	*/
-			/* will appreciably decrease collection time	*/
-			/* at the expense of space.			*/
-			/* GC_free_space_divisor = 1 will effectively	*/
-			/* disable collections.				*/
-
-GC_API GC_word GC_max_retries;
-			/* The maximum number of GCs attempted before	*/
-			/* reporting out of memory after heap		*/
-			/* expansion fails.  Initially 0.		*/
-			
-
-GC_API char *GC_stackbottom;	/* Cool end of user stack.		*/
-				/* May be set in the client prior to	*/
-				/* calling any GC_ routines.  This	*/
-				/* avoids some overhead, and 		*/
-				/* potentially some signals that can 	*/
-				/* confuse debuggers.  Otherwise the	*/
-				/* collector attempts to set it 	*/
-				/* automatically.			*/
-				/* For multithreaded code, this is the	*/
-				/* cold end of the stack for the	*/
-				/* primordial thread.			*/
-				
-/* Public procedures */
-/*
- * general purpose allocation routines, with roughly malloc calling conv.
- * The atomic versions promise that no relevant pointers are contained
- * in the object.  The nonatomic versions guarantee that the new object
- * is cleared.  GC_malloc_stubborn promises that no changes to the object
- * will occur after GC_end_stubborn_change has been called on the
- * result of GC_malloc_stubborn. GC_malloc_uncollectable allocates an object
- * that is scanned for pointers to collectable objects, but is not itself
- * collectable.  GC_malloc_uncollectable and GC_free called on the resulting
- * object implicitly update GC_non_gc_bytes appropriately.
- */
-GC_API GC_PTR GC_malloc GC_PROTO((size_t size_in_bytes));
-GC_API GC_PTR GC_malloc_atomic GC_PROTO((size_t size_in_bytes));
-GC_API GC_PTR GC_malloc_uncollectable GC_PROTO((size_t size_in_bytes));
-GC_API GC_PTR GC_malloc_stubborn GC_PROTO((size_t size_in_bytes));
-
-/* The following is only defined if the library has been suitably	*/
-/* compiled:								*/
-GC_API GC_PTR GC_malloc_atomic_uncollectable GC_PROTO((size_t size_in_bytes));
-
-/* Explicitly deallocate an object.  Dangerous if used incorrectly.     */
-/* Requires a pointer to the base of an object.				*/
-/* If the argument is stubborn, it should not be changeable when freed. */
-/* An object should not be enable for finalization when it is 		*/
-/* explicitly deallocated.						*/
-/* GC_free(0) is a no-op, as required by ANSI C for free.		*/
-GC_API void GC_free GC_PROTO((GC_PTR object_addr));
-
-/*
- * Stubborn objects may be changed only if the collector is explicitly informed.
- * The collector is implicitly informed of coming change when such
- * an object is first allocated.  The following routines inform the
- * collector that an object will no longer be changed, or that it will
- * once again be changed.  Only nonNIL pointer stores into the object
- * are considered to be changes.  The argument to GC_end_stubborn_change
- * must be exacly the value returned by GC_malloc_stubborn or passed to
- * GC_change_stubborn.  (In the second case it may be an interior pointer
- * within 512 bytes of the beginning of the objects.)
- * There is a performance penalty for allowing more than
- * one stubborn object to be changed at once, but it is acceptable to
- * do so.  The same applies to dropping stubborn objects that are still
- * changeable.
- */
-GC_API void GC_change_stubborn GC_PROTO((GC_PTR));
-GC_API void GC_end_stubborn_change GC_PROTO((GC_PTR));
-
-/* Return a pointer to the base (lowest address) of an object given	*/
-/* a pointer to a location within the object.				*/
-/* Return 0 if displaced_pointer doesn't point to within a valid	*/
-/* object.								*/
-GC_API GC_PTR GC_base GC_PROTO((GC_PTR displaced_pointer));
-
-/* Given a pointer to the base of an object, return its size in bytes.	*/
-/* The returned size may be slightly larger than what was originally	*/
-/* requested.								*/
-GC_API size_t GC_size GC_PROTO((GC_PTR object_addr));
-
-/* For compatibility with C library.  This is occasionally faster than	*/
-/* a malloc followed by a bcopy.  But if you rely on that, either here	*/
-/* or with the standard C library, your code is broken.  In my		*/
-/* opinion, it shouldn't have been invented, but now we're stuck. -HB	*/
-/* The resulting object has the same kind as the original.		*/
-/* If the argument is stubborn, the result will have changes enabled.	*/
-/* It is an error to have changes enabled for the original object.	*/
-/* Follows ANSI comventions for NULL old_object.			*/
-GC_API GC_PTR GC_realloc
-	GC_PROTO((GC_PTR old_object, size_t new_size_in_bytes));
-				   
-/* Explicitly increase the heap size.	*/
-/* Returns 0 on failure, 1 on success.  */
-GC_API int GC_expand_hp GC_PROTO((size_t number_of_bytes));
-
-/* Limit the heap size to n bytes.  Useful when you're debugging, 	*/
-/* especially on systems that don't handle running out of memory well.	*/
-/* n == 0 ==> unbounded.  This is the default.				*/
-GC_API void GC_set_max_heap_size GC_PROTO((GC_word n));
-
-/* Inform the collector that a certain section of statically allocated	*/
-/* memory contains no pointers to garbage collected memory.  Thus it 	*/
-/* need not be scanned.  This is sometimes important if the application */
-/* maps large read/write files into the address space, which could be	*/
-/* mistaken for dynamic library data segments on some systems.		*/
-GC_API void GC_exclude_static_roots GC_PROTO((GC_PTR start, GC_PTR finish));
-
-/* Clear the set of root segments.  Wizards only. */
-GC_API void GC_clear_roots GC_PROTO((void));
-
-/* Add a root segment.  Wizards only. */
-GC_API void GC_add_roots GC_PROTO((char * low_address,
-				   char * high_address_plus_1));
-
-/* Add a displacement to the set of those considered valid by the	*/
-/* collector.  GC_register_displacement(n) means that if p was returned */
-/* by GC_malloc, then (char *)p + n will be considered to be a valid	*/
-/* pointer to n.  N must be small and less than the size of p.		*/
-/* (All pointers to the interior of objects from the stack are		*/
-/* considered valid in any case.  This applies to heap objects and	*/
-/* static data.)							*/
-/* Preferably, this should be called before any other GC procedures.	*/
-/* Calling it later adds to the probability of excess memory		*/
-/* retention.								*/
-/* This is a no-op if the collector was compiled with recognition of	*/
-/* arbitrary interior pointers enabled, which is now the default.	*/
-GC_API void GC_register_displacement GC_PROTO((GC_word n));
-
-/* The following version should be used if any debugging allocation is	*/
-/* being done.								*/
-GC_API void GC_debug_register_displacement GC_PROTO((GC_word n));
-
-/* Explicitly trigger a full, world-stop collection. 	*/
-GC_API void GC_gcollect GC_PROTO((void));
-
-/* Trigger a full world-stopped collection.  Abort the collection if 	*/
-/* and when stop_func returns a nonzero value.  Stop_func will be 	*/
-/* called frequently, and should be reasonably fast.  This works even	*/
-/* if virtual dirty bits, and hence incremental collection is not 	*/
-/* available for this architecture.  Collections can be aborted faster	*/
-/* than normal pause times for incremental collection.  However,	*/
-/* aborted collections do no useful work; the next collection needs	*/
-/* to start from the beginning.						*/
-/* Return 0 if the collection was aborted, 1 if it succeeded.		*/
-typedef int (* GC_stop_func) GC_PROTO((void));
-GC_API int GC_try_to_collect GC_PROTO((GC_stop_func stop_func));
-
-/* Return the number of bytes in the heap.  Excludes collector private	*/
-/* data structures.  Includes empty blocks and fragmentation loss.	*/
-/* Includes some pages that were allocated but never written.		*/
-GC_API size_t GC_get_heap_size GC_PROTO((void));
-
-/* Return the number of bytes allocated since the last collection.	*/
-GC_API size_t GC_get_bytes_since_gc GC_PROTO((void));
-
-/* Enable incremental/generational collection.	*/
-/* Not advisable unless dirty bits are 		*/
-/* available or most heap objects are		*/
-/* pointerfree(atomic) or immutable.		*/
-/* Don't use in leak finding mode.		*/
-/* Ignored if GC_dont_gc is true.		*/
-GC_API void GC_enable_incremental GC_PROTO((void));
-
-/* Perform some garbage collection work, if appropriate.	*/
-/* Return 0 if there is no more work to be done.		*/
-/* Typically performs an amount of work corresponding roughly	*/
-/* to marking from one page.  May do more work if further	*/
-/* progress requires it, e.g. if incremental collection is	*/
-/* disabled.  It is reasonable to call this in a wait loop	*/
-/* until it returns 0.						*/
-GC_API int GC_collect_a_little GC_PROTO((void));
-
-/* Allocate an object of size lb bytes.  The client guarantees that	*/
-/* as long as the object is live, it will be referenced by a pointer	*/
-/* that points to somewhere within the first 256 bytes of the object.	*/
-/* (This should normally be declared volatile to prevent the compiler	*/
-/* from invalidating this assertion.)  This routine is only useful	*/
-/* if a large array is being allocated.  It reduces the chance of 	*/
-/* accidentally retaining such an array as a result of scanning an	*/
-/* integer that happens to be an address inside the array.  (Actually,	*/
-/* it reduces the chance of the allocator not finding space for such	*/
-/* an array, since it will try hard to avoid introducing such a false	*/
-/* reference.)  On a SunOS 4.X or MS Windows system this is recommended */
-/* for arrays likely to be larger than 100K or so.  For other systems,	*/
-/* or if the collector is not configured to recognize all interior	*/
-/* pointers, the threshold is normally much higher.			*/
-GC_API GC_PTR GC_malloc_ignore_off_page GC_PROTO((size_t lb));
-GC_API GC_PTR GC_malloc_atomic_ignore_off_page GC_PROTO((size_t lb));
-
-#if defined(__sgi) && !defined(__GNUC__) && _COMPILER_VERSION >= 720
-#   define GC_ADD_CALLER
-#   define GC_RETURN_ADDR (GC_word)__return_address
-#endif
-
-#ifdef GC_ADD_CALLER
-#  define GC_EXTRAS GC_RETURN_ADDR, __FILE__, __LINE__
-#  define GC_EXTRA_PARAMS GC_word ra, char * descr_string, int descr_int
-#else
-#  define GC_EXTRAS __FILE__, __LINE__
-#  define GC_EXTRA_PARAMS char * descr_string, int descr_int
-#endif
-
-/* Debugging (annotated) allocation.  GC_gcollect will check 		*/
-/* objects allocated in this way for overwrites, etc.			*/
-GC_API GC_PTR GC_debug_malloc
-	GC_PROTO((size_t size_in_bytes, GC_EXTRA_PARAMS));
-GC_API GC_PTR GC_debug_malloc_atomic
-	GC_PROTO((size_t size_in_bytes, GC_EXTRA_PARAMS));
-GC_API GC_PTR GC_debug_malloc_uncollectable
-	GC_PROTO((size_t size_in_bytes, GC_EXTRA_PARAMS));
-GC_API GC_PTR GC_debug_malloc_stubborn
-	GC_PROTO((size_t size_in_bytes, GC_EXTRA_PARAMS));
-GC_API void GC_debug_free GC_PROTO((GC_PTR object_addr));
-GC_API GC_PTR GC_debug_realloc
-	GC_PROTO((GC_PTR old_object, size_t new_size_in_bytes,
-  		  GC_EXTRA_PARAMS));
-  			 	 
-GC_API void GC_debug_change_stubborn GC_PROTO((GC_PTR));
-GC_API void GC_debug_end_stubborn_change GC_PROTO((GC_PTR));
-# ifdef GC_DEBUG
-#   define GC_MALLOC(sz) GC_debug_malloc(sz, GC_EXTRAS)
-#   define GC_MALLOC_ATOMIC(sz) GC_debug_malloc_atomic(sz, GC_EXTRAS)
-#   define GC_MALLOC_UNCOLLECTABLE(sz) GC_debug_malloc_uncollectable(sz, \
-							GC_EXTRAS)
-#   define GC_REALLOC(old, sz) GC_debug_realloc(old, sz, GC_EXTRAS)
-#   define GC_FREE(p) GC_debug_free(p)
-#   define GC_REGISTER_FINALIZER(p, f, d, of, od) \
-	GC_debug_register_finalizer(p, f, d, of, od)
-#   define GC_REGISTER_FINALIZER_IGNORE_SELF(p, f, d, of, od) \
-	GC_debug_register_finalizer_ignore_self(p, f, d, of, od)
-#   define GC_MALLOC_STUBBORN(sz) GC_debug_malloc_stubborn(sz, GC_EXTRAS);
-#   define GC_CHANGE_STUBBORN(p) GC_debug_change_stubborn(p)
-#   define GC_END_STUBBORN_CHANGE(p) GC_debug_end_stubborn_change(p)
-#   define GC_GENERAL_REGISTER_DISAPPEARING_LINK(link, obj) \
-	GC_general_register_disappearing_link(link, GC_base(obj))
-#   define GC_REGISTER_DISPLACEMENT(n) GC_debug_register_displacement(n)
-# else
-#   define GC_MALLOC(sz) GC_malloc(sz)
-#   define GC_MALLOC_ATOMIC(sz) GC_malloc_atomic(sz)
-#   define GC_MALLOC_UNCOLLECTABLE(sz) GC_malloc_uncollectable(sz)
-#   define GC_REALLOC(old, sz) GC_realloc(old, sz)
-#   define GC_FREE(p) GC_free(p)
-#   define GC_REGISTER_FINALIZER(p, f, d, of, od) \
-	GC_register_finalizer(p, f, d, of, od)
-#   define GC_REGISTER_FINALIZER_IGNORE_SELF(p, f, d, of, od) \
-	GC_register_finalizer_ignore_self(p, f, d, of, od)
-#   define GC_MALLOC_STUBBORN(sz) GC_malloc_stubborn(sz)
-#   define GC_CHANGE_STUBBORN(p) GC_change_stubborn(p)
-#   define GC_END_STUBBORN_CHANGE(p) GC_end_stubborn_change(p)
-#   define GC_GENERAL_REGISTER_DISAPPEARING_LINK(link, obj) \
-	GC_general_register_disappearing_link(link, obj)
-#   define GC_REGISTER_DISPLACEMENT(n) GC_register_displacement(n)
-# endif
-/* The following are included because they are often convenient, and	*/
-/* reduce the chance for a misspecifed size argument.  But calls may	*/
-/* expand to something syntactically incorrect if t is a complicated	*/
-/* type expression.  							*/
-# define GC_NEW(t) (t *)GC_MALLOC(sizeof (t))
-# define GC_NEW_ATOMIC(t) (t *)GC_MALLOC_ATOMIC(sizeof (t))
-# define GC_NEW_STUBBORN(t) (t *)GC_MALLOC_STUBBORN(sizeof (t))
-# define GC_NEW_UNCOLLECTABLE(t) (t *)GC_MALLOC_UNCOLLECTABLE(sizeof (t))
-
-/* Finalization.  Some of these primitives are grossly unsafe.		*/
-/* The idea is to make them both cheap, and sufficient to build		*/
-/* a safer layer, closer to PCedar finalization.			*/
-/* The interface represents my conclusions from a long discussion	*/
-/* with Alan Demers, Dan Greene, Carl Hauser, Barry Hayes, 		*/
-/* Christian Jacobi, and Russ Atkinson.  It's not perfect, and		*/
-/* probably nobody else agrees with it.	    Hans-J. Boehm  3/13/92	*/
-typedef void (*GC_finalization_proc)
-  	GC_PROTO((GC_PTR obj, GC_PTR client_data));
-
-GC_API void GC_register_finalizer
-    	GC_PROTO((GC_PTR obj, GC_finalization_proc fn, GC_PTR cd,
-		  GC_finalization_proc *ofn, GC_PTR *ocd));
-GC_API void GC_debug_register_finalizer
-    	GC_PROTO((GC_PTR obj, GC_finalization_proc fn, GC_PTR cd,
-		  GC_finalization_proc *ofn, GC_PTR *ocd));
-	/* When obj is no longer accessible, invoke		*/
-	/* (*fn)(obj, cd).  If a and b are inaccessible, and	*/
-	/* a points to b (after disappearing links have been	*/
-	/* made to disappear), then only a will be		*/
-	/* finalized.  (If this does not create any new		*/
-	/* pointers to b, then b will be finalized after the	*/
-	/* next collection.)  Any finalizable object that	*/
-	/* is reachable from itself by following one or more	*/
-	/* pointers will not be finalized (or collected).	*/
-	/* Thus cycles involving finalizable objects should	*/
-	/* be avoided, or broken by disappearing links.		*/
-	/* All but the last finalizer registered for an object  */
-	/* is ignored.						*/
-	/* Finalization may be removed by passing 0 as fn.	*/
-	/* Finalizers are implicitly unregistered just before   */
-	/* they are invoked.					*/
-	/* The old finalizer and client data are stored in	*/
-	/* *ofn and *ocd.					*/ 
-	/* Fn is never invoked on an accessible object,		*/
-	/* provided hidden pointers are converted to real 	*/
-	/* pointers only if the allocation lock is held, and	*/
-	/* such conversions are not performed by finalization	*/
-	/* routines.						*/
-	/* If GC_register_finalizer is aborted as a result of	*/
-	/* a signal, the object may be left with no		*/
-	/* finalization, even if neither the old nor new	*/
-	/* finalizer were NULL.					*/
-	/* Obj should be the nonNULL starting address of an 	*/
-	/* object allocated by GC_malloc or friends.		*/
-	/* Note that any garbage collectable object referenced	*/
-	/* by cd will be considered accessible until the	*/
-	/* finalizer is invoked.				*/
-
-/* Another versions of the above follow.  It ignores		*/
-/* self-cycles, i.e. pointers from a finalizable object to	*/
-/* itself.  There is a stylistic argument that this is wrong,	*/
-/* but it's unavoidable for C++, since the compiler may		*/
-/* silently introduce these.  It's also benign in that specific	*/
-/* case.							*/
-GC_API void GC_register_finalizer_ignore_self
-	GC_PROTO((GC_PTR obj, GC_finalization_proc fn, GC_PTR cd,
-		  GC_finalization_proc *ofn, GC_PTR *ocd));
-GC_API void GC_debug_register_finalizer_ignore_self
-	GC_PROTO((GC_PTR obj, GC_finalization_proc fn, GC_PTR cd,
-		  GC_finalization_proc *ofn, GC_PTR *ocd));
-
-/* The following routine may be used to break cycles between	*/
-/* finalizable objects, thus causing cyclic finalizable		*/
-/* objects to be finalized in the correct order.  Standard	*/
-/* use involves calling GC_register_disappearing_link(&p),	*/
-/* where p is a pointer that is not followed by finalization	*/
-/* code, and should not be considered in determining 		*/
-/* finalization order.						*/
-GC_API int GC_register_disappearing_link GC_PROTO((GC_PTR * /* link */));
-	/* Link should point to a field of a heap allocated 	*/
-	/* object obj.  *link will be cleared when obj is	*/
-	/* found to be inaccessible.  This happens BEFORE any	*/
-	/* finalization code is invoked, and BEFORE any		*/
-	/* decisions about finalization order are made.		*/
-	/* This is useful in telling the finalizer that 	*/
-	/* some pointers are not essential for proper		*/
-	/* finalization.  This may avoid finalization cycles.	*/
-	/* Note that obj may be resurrected by another		*/
-	/* finalizer, and thus the clearing of *link may	*/
-	/* be visible to non-finalization code.  		*/
-	/* There's an argument that an arbitrary action should  */
-	/* be allowed here, instead of just clearing a pointer. */
-	/* But this causes problems if that action alters, or 	*/
-	/* examines connectivity.				*/
-	/* Returns 1 if link was already registered, 0		*/
-	/* otherwise.						*/
-	/* Only exists for backward compatibility.  See below:	*/
-	
-GC_API int GC_general_register_disappearing_link
-	GC_PROTO((GC_PTR * /* link */, GC_PTR obj));
-	/* A slight generalization of the above. *link is	*/
-	/* cleared when obj first becomes inaccessible.  This	*/
-	/* can be used to implement weak pointers easily and	*/
-	/* safely. Typically link will point to a location	*/
-	/* holding a disguised pointer to obj.  (A pointer 	*/
-	/* inside an "atomic" object is effectively  		*/
-	/* disguised.)   In this way soft			*/
-	/* pointers are broken before any object		*/
-	/* reachable from them are finalized.  Each link	*/
-	/* May be registered only once, i.e. with one obj	*/
-	/* value.  This was added after a long email discussion */
-	/* with John Ellis.					*/
-	/* Obj must be a pointer to the first word of an object */
-	/* we allocated.  It is unsafe to explicitly deallocate */
-	/* the object containing link.  Explicitly deallocating */
-	/* obj may or may not cause link to eventually be	*/
-	/* cleared.						*/
-GC_API int GC_unregister_disappearing_link GC_PROTO((GC_PTR * /* link */));
-	/* Returns 0 if link was not actually registered.	*/
-	/* Undoes a registration by either of the above two	*/
-	/* routines.						*/
-
-/* Auxiliary fns to make finalization work correctly with displaced	*/
-/* pointers introduced by the debugging allocators.			*/
-GC_API GC_PTR GC_make_closure GC_PROTO((GC_finalization_proc fn, GC_PTR data));
-GC_API void GC_debug_invoke_finalizer GC_PROTO((GC_PTR obj, GC_PTR data));
-
-GC_API int GC_invoke_finalizers GC_PROTO((void));
-	/* Run finalizers for all objects that are ready to	*/
-	/* be finalized.  Return the number of finalizers	*/
-	/* that were run.  Normally this is also called		*/
-	/* implicitly during some allocations.	If		*/
-	/* GC-finalize_on_demand is nonzero, it must be called	*/
-	/* explicitly.						*/
-
-/* GC_set_warn_proc can be used to redirect or filter warning messages.	*/
-/* p may not be a NULL pointer.						*/
-typedef void (*GC_warn_proc) GC_PROTO((char *msg, GC_word arg));
-GC_API GC_warn_proc GC_set_warn_proc GC_PROTO((GC_warn_proc p));
-    /* Returns old warning procedure.	*/
-	
-/* The following is intended to be used by a higher level	*/
-/* (e.g. cedar-like) finalization facility.  It is expected	*/
-/* that finalization code will arrange for hidden pointers to	*/
-/* disappear.  Otherwise objects can be accessed after they	*/
-/* have been collected.						*/
-/* Note that putting pointers in atomic objects or in 		*/
-/* nonpointer slots of "typed" objects is equivalent to 	*/
-/* disguising them in this way, and may have other advantages.	*/
-# if defined(I_HIDE_POINTERS) || defined(GC_I_HIDE_POINTERS)
-    typedef GC_word GC_hidden_pointer;
-#   define HIDE_POINTER(p) (~(GC_hidden_pointer)(p))
-#   define REVEAL_POINTER(p) ((GC_PTR)(HIDE_POINTER(p)))
-    /* Converting a hidden pointer to a real pointer requires verifying	*/
-    /* that the object still exists.  This involves acquiring the  	*/
-    /* allocator lock to avoid a race with the collector.		*/
-# endif /* I_HIDE_POINTERS */
-
-typedef GC_PTR (*GC_fn_type) GC_PROTO((GC_PTR client_data));
-GC_API GC_PTR GC_call_with_alloc_lock
-        	GC_PROTO((GC_fn_type fn, GC_PTR client_data));
-
-/* Check that p and q point to the same object.  		*/
-/* Fail conspicuously if they don't.				*/
-/* Returns the first argument.  				*/
-/* Succeeds if neither p nor q points to the heap.		*/
-/* May succeed if both p and q point to between heap objects.	*/
-GC_API GC_PTR GC_same_obj GC_PROTO((GC_PTR p, GC_PTR q));
-
-/* Checked pointer pre- and post- increment operations.  Note that	*/
-/* the second argument is in units of bytes, not multiples of the	*/
-/* object size.  This should either be invoked from a macro, or the	*/
-/* call should be automatically generated.				*/
-GC_API GC_PTR GC_pre_incr GC_PROTO((GC_PTR *p, size_t how_much));
-GC_API GC_PTR GC_post_incr GC_PROTO((GC_PTR *p, size_t how_much));
-
-/* Check that p is visible						*/
-/* to the collector as a possibly pointer containing location.		*/
-/* If it isn't fail conspicuously.					*/
-/* Returns the argument in all cases.  May erroneously succeed		*/
-/* in hard cases.  (This is intended for debugging use with		*/
-/* untyped allocations.  The idea is that it should be possible, though	*/
-/* slow, to add such a call to all indirect pointer stores.)		*/
-/* Currently useless for multithreaded worlds.				*/
-GC_API GC_PTR GC_is_visible GC_PROTO((GC_PTR p));
-
-/* Check that if p is a pointer to a heap page, then it points to	*/
-/* a valid displacement within a heap object.				*/
-/* Fail conspicuously if this property does not hold.			*/
-/* Uninteresting with ALL_INTERIOR_POINTERS.				*/
-/* Always returns its argument.						*/
-GC_API GC_PTR GC_is_valid_displacement GC_PROTO((GC_PTR	p));
-
-/* Safer, but slow, pointer addition.  Probably useful mainly with 	*/
-/* a preprocessor.  Useful only for heap pointers.			*/
-#ifdef GC_DEBUG
-#   define GC_PTR_ADD3(x, n, type_of_result) \
-	((type_of_result)GC_same_obj((x)+(n), (x)))
-#   define GC_PRE_INCR3(x, n, type_of_result) \
-	((type_of_result)GC_pre_incr(&(x), (n)*sizeof(*x))
-#   define GC_POST_INCR2(x, type_of_result) \
-	((type_of_result)GC_post_incr(&(x), sizeof(*x))
-#   ifdef __GNUC__
-#       define GC_PTR_ADD(x, n) \
-	    GC_PTR_ADD3(x, n, typeof(x))
-#   define GC_PRE_INCR(x, n) \
-	    GC_PRE_INCR3(x, n, typeof(x))
-#   define GC_POST_INCR(x, n) \
-	    GC_POST_INCR3(x, typeof(x))
-#   else
-	/* We can't do this right without typeof, which ANSI	*/
-	/* decided was not sufficiently useful.  Repeatedly	*/
-	/* mentioning the arguments seems too dangerous to be	*/
-	/* useful.  So does not casting the result.		*/
-#   	define GC_PTR_ADD(x, n) ((x)+(n))
-#   endif
-#else	/* !GC_DEBUG */
-#   define GC_PTR_ADD3(x, n, type_of_result) ((x)+(n))
-#   define GC_PTR_ADD(x, n) ((x)+(n))
-#   define GC_PRE_INCR3(x, n, type_of_result) ((x) += (n))
-#   define GC_PRE_INCR(x, n) ((x) += (n))
-#   define GC_POST_INCR2(x, n, type_of_result) ((x)++)
-#   define GC_POST_INCR(x, n) ((x)++)
-#endif
-
-/* Safer assignment of a pointer to a nonstack location.	*/
-#ifdef GC_DEBUG
-# ifdef __STDC__
-#   define GC_PTR_STORE(p, q) \
-	(*(void **)GC_is_visible(p) = GC_is_valid_displacement(q))
-# else
-#   define GC_PTR_STORE(p, q) \
-	(*(char **)GC_is_visible(p) = GC_is_valid_displacement(q))
-# endif
-#else /* !GC_DEBUG */
-#   define GC_PTR_STORE(p, q) *((p) = (q))
-#endif
-
-/* Fynctions called to report pointer checking errors */
-GC_API void (*GC_same_obj_print_proc) GC_PROTO((GC_PTR p, GC_PTR q));
-
-GC_API void (*GC_is_valid_displacement_print_proc)
-	GC_PROTO((GC_PTR p));
-
-GC_API void (*GC_is_visible_print_proc)
-	GC_PROTO((GC_PTR p));
-
-#if defined(_SOLARIS_PTHREADS) && !defined(SOLARIS_THREADS)
-#   define SOLARIS_THREADS
-#endif
-
-#ifdef SOLARIS_THREADS
-/* We need to intercept calls to many of the threads primitives, so 	*/
-/* that we can locate thread stacks and stop the world.			*/
-/* Note also that the collector cannot see thread specific data.	*/
-/* Thread specific data should generally consist of pointers to		*/
-/* uncollectable objects, which are deallocated using the destructor	*/
-/* facility in thr_keycreate.						*/
-# include <thread.h>
-# include <signal.h>
-  int GC_thr_create(void *stack_base, size_t stack_size,
-                    void *(*start_routine)(void *), void *arg, long flags,
-                    thread_t *new_thread);
-  int GC_thr_join(thread_t wait_for, thread_t *departed, void **status);
-  int GC_thr_suspend(thread_t target_thread);
-  int GC_thr_continue(thread_t target_thread);
-  void * GC_dlopen(const char *path, int mode);
-
-# ifdef _SOLARIS_PTHREADS
-#   include <pthread.h>
-    extern int GC_pthread_create(pthread_t *new_thread,
-    			         const pthread_attr_t *attr,
-          			 void * (*thread_execp)(void *), void *arg);
-    extern int GC_pthread_join(pthread_t wait_for, void **status);
-
-#   undef thread_t
-
-#   define pthread_join GC_pthread_join
-#   define pthread_create GC_pthread_create
-#endif
-
-# define thr_create GC_thr_create
-# define thr_join GC_thr_join
-# define thr_suspend GC_thr_suspend
-# define thr_continue GC_thr_continue
-# define dlopen GC_dlopen
-
-# endif /* SOLARIS_THREADS */
-
-
-#if defined(IRIX_THREADS) || defined(LINUX_THREADS)
-/* We treat these similarly. */
-# include <pthread.h>
-# include <signal.h>
-
-  int GC_pthread_create(pthread_t *new_thread,
-                        const pthread_attr_t *attr,
-		        void *(*start_routine)(void *), void *arg);
-  int GC_pthread_sigmask(int how, const sigset_t *set, sigset_t *oset);
-  int GC_pthread_join(pthread_t thread, void **retval);
-
-# define pthread_create GC_pthread_create
-# define pthread_sigmask GC_pthread_sigmask
-# define pthread_join GC_pthread_join
-
-#endif /* IRIX_THREADS || LINUX_THREADS */
-
-# if defined(PCR) || defined(SOLARIS_THREADS) || defined(WIN32_THREADS) || \
-	defined(IRIX_THREADS) || defined(LINUX_THREADS) || \
-	defined(IRIX_JDK_THREADS)
-   	/* Any flavor of threads except SRC_M3.	*/
-/* This returns a list of objects, linked through their first		*/
-/* word.  Its use can greatly reduce lock contention problems, since	*/
-/* the allocation lock can be acquired and released many fewer times.	*/
-/* lb must be large enough to hold the pointer field.			*/
-GC_PTR GC_malloc_many(size_t lb);
-#define GC_NEXT(p) (*(GC_PTR *)(p)) 	/* Retrieve the next element	*/
-					/* in returned list.		*/
-extern void GC_thr_init();	/* Needed for Solaris/X86	*/
-
-#endif /* THREADS && !SRC_M3 */
-
-/*
- * If you are planning on putting
- * the collector in a SunOS 5 dynamic library, you need to call GC_INIT()
- * from the statically loaded program section.
- * This circumvents a Solaris 2.X (X<=4) linker bug.
- */
-#if defined(sparc) || defined(__sparc)
-#   define GC_INIT() { extern end, etext; \
-		       GC_noop(&end, &etext); }
-#else
-# if defined(__CYGWIN32__) && defined(GC_USE_DLL)
-    /*
-     * Similarly gnu-win32 DLLs need explicit initialization
-     */
-#   define GC_INIT() { GC_add_roots(DATASTART, DATAEND); }
-# else
-#   define GC_INIT()
-# endif
-#endif
-
-#if (defined(_MSDOS) || defined(_MSC_VER)) && (_M_IX86 >= 300) \
-     || defined(_WIN32)
-  /* win32S may not free all resources on process exit.  */
-  /* This explicitly deallocates the heap.		 */
-    GC_API void GC_win32_free_heap ();
-#endif
-
-#ifdef __cplusplus
-    }  /* end of extern "C" */
-#endif
-
-#endif /* _GC_H */