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Diff for /parser3/src/lib/gc/include/gc.h between versions 1.1.2.1 and 1.4

version 1.1.2.1, 2003/03/26 08:16:20 version 1.4, 2020/12/15 00:21:01
Line 30 Line 30
   
 # define _GC_H  # define _GC_H
   
 /*  
  * Some tests for old macros.  These violate our namespace rules and will  
  * disappear shortly.  Use the GC_ names.  
  */  
 #if defined(SOLARIS_THREADS) || defined(_SOLARIS_THREADS)  
 # define GC_SOLARIS_THREADS  
 #endif  
 #if defined(_SOLARIS_PTHREADS)  
 # define GC_SOLARIS_PTHREADS  
 #endif  
 #if defined(IRIX_THREADS)  
 # define GC_IRIX_THREADS  
 #endif  
 #if defined(DGUX_THREADS)  
 # if !defined(GC_DGUX386_THREADS)  
 #  define GC_DGUX386_THREADS  
 # endif  
 #endif  
 #if defined(HPUX_THREADS)  
 # define GC_HPUX_THREADS  
 #endif  
 #if defined(OSF1_THREADS)  
 # define GC_OSF1_THREADS  
 #endif  
 #if defined(LINUX_THREADS)  
 # define GC_LINUX_THREADS  
 #endif  
 #if defined(WIN32_THREADS)  
 # define GC_WIN32_THREADS  
 #endif  
 #if defined(USE_LD_WRAP)  
 # define GC_USE_LD_WRAP  
 #endif  
   
 #if !defined(_REENTRANT) && (defined(GC_SOLARIS_THREADS) \  
                              || defined(GC_SOLARIS_PTHREADS) \  
                              || defined(GC_HPUX_THREADS) \  
                              || defined(GC_LINUX_THREADS))  
 # define _REENTRANT  
         /* Better late than never.  This fails if system headers that   */  
         /* depend on this were previously included.                     */  
 #endif  
   
 #if defined(GC_DGUX386_THREADS) && !defined(_POSIX4A_DRAFT10_SOURCE)  
 # define _POSIX4A_DRAFT10_SOURCE 1  
 #endif  
   
 #if defined(GC_SOLARIS_PTHREADS) && !defined(GC_SOLARIS_THREADS)  
 #   define GC_SOLARIS_THREADS  
 #endif  
   
 # if defined(GC_SOLARIS_PTHREADS) || defined(GC_FREEBSD_THREADS) || \  
         defined(GC_IRIX_THREADS) || defined(GC_LINUX_THREADS) || \  
         defined(GC_HPUX_THREADS) || defined(GC_OSF1_THREADS) || \  
         defined(GC_DGUX386_THREADS) || \  
         (defined(GC_WIN32_THREADS) && defined(__CYGWIN32__))  
 #   define GC_PTHREADS  
 # endif  
   
 # define __GC  # define __GC
 # include <stddef.h>  # include <stddef.h>
   
 # ifdef _WIN32_WCE  # ifdef _WIN32_WCE
 /* Yet more kluges for WinCE */  /* Yet more kluges for WinCE */
 #   include <stdlib.h>          /* size_t is defined here */  #   include <stdlib.h>          /* size_t is defined here */
Line 105 Line 47
 # endif  # endif
 #endif  #endif
   
 #if (defined(__DMC__) || defined(_MSC_VER)) \  #if (defined(__DMC__) || defined(_MSC_VER)) && (defined(_DLL) && !defined(GC_NOT_DLL) || defined(GC_DLL))
                 && (defined(_DLL) && !defined(GC_NOT_DLL) \  
                     || defined(GC_DLL))  
 # ifdef GC_BUILD  # ifdef GC_BUILD
 #   define GC_API extern __declspec(dllexport)  #   define GC_API extern __declspec(dllexport)
 # else  # else
Line 115 Line 55
 # endif  # endif
 #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  #ifndef GC_API
 #define GC_API extern  #define GC_API extern
 #endif  #endif
Line 142 Line 74
 # endif  # 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 unsigned long GC_word;
 typedef long GC_signed_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.               */  
   
 GC_API int GC_parallel; /* GC is parallelized for performance on        */  
                         /* multiprocessors.  Currently set only         */  
                         /* implicitly if collector is built with        */  
                         /* -DPARALLEL_MARK and if either:               */  
                         /*  Env variable GC_NPROC is set to > 1, or     */  
                         /*  GC_NPROC is not set and this is an MP.      */  
                         /* If GC_parallel is set, incremental           */  
                         /* collection is only partially functional,     */  
                         /* and may not be desirable.                    */  
                           
   
 /* 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_all_interior_pointers;  
                         /* Arrange for pointers to object interiors to  */  
                         /* be recognized as valid.  May not be changed  */  
                         /* after GC initialization.                     */  
                         /* Initial value is determined by               */  
                         /* -DALL_INTERIOR_POINTERS.                     */  
                         /* Unless DONT_ADD_BYTE_AT_END is defined, this */  
                         /* also affects whether sizes are increased by  */  
                         /* at least a byte to allow "off the end"       */  
                         /* pointer recognition.                         */  
                         /* MUST BE 0 or 1.                              */  
   
 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 explicit 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 void (* GC_finalizer_notifier)();  
                         /* Invoked by the collector when there are      */  
                         /* objects to be finalized.  Invoked at most    */  
                         /* once per GC cycle.  Never invoked unless     */  
                         /* GC_finalize_on_demand is set.                */  
                         /* Typically this will notify a finalization    */  
                         /* thread, which will call GC_invoke_finalizers */  
                         /* in response.                                 */  
   
 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_use_entire_heap;  
                 /* Causes the nonincremental collector to use the       */  
                 /* entire heap before collecting.  This was the only    */  
                 /* option for GC versions < 5.0.  This sometimes        */  
                 /* results in more large block fragmentation, since     */  
                 /* very larg blocks will tend to get broken up          */  
                 /* during each GC cycle.  It is likely to result in a   */  
                 /* larger working set, but lower collection             */  
                 /* frequencies, and hence fewer instructions executed   */  
                 /* in the collector.                                    */  
   
 GC_API int GC_full_freq;    /* Number of partial collections between    */  
                             /* full collections.  Matters only if       */  
                             /* GC_incremental is set.                   */  
                             /* Full collections are also triggered if   */  
                             /* the collector detects a substantial      */  
                             /* increase in the number of in-use heap    */  
                             /* blocks.  Values in the tens are now      */  
                             /* perfectly reasonable, unlike for         */  
                             /* earlier GC versions.                     */  
                           
 GC_API GC_word GC_non_gc_bytes;  
                         /* Bytes not considered candidates for collection. */  
                         /* Used only to control scheduling of collections. */  
                         /* Updated by GC_malloc_uncollectable and GC_free. */  
                         /* Wizards only.                                   */  
   
 GC_API int GC_no_dls;  
                         /* Don't register dynamic library data segments. */  
                         /* Wizards only.  Should be used only if the     */  
                         /* application explicitly registers all roots.   */  
                         /* In Microsoft Windows environments, this will  */  
                         /* usually also prevent registration of the      */  
                         /* main data segment as part of the root set.    */  
   
 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.                   */        
                                   
 GC_API int GC_dont_precollect;  /* Don't collect as part of             */  
                                 /* initialization.  Should be set only  */  
                                 /* if the client wants a chance to      */  
                                 /* manually initialize the root set     */  
                                 /* before the first collection.         */  
                                 /* Interferes with blacklisting.        */  
                                 /* Wizards only.                        */  
   
 GC_API unsigned long GC_time_limit;  
                                 /* If incremental collection is enabled, */  
                                 /* We try to terminate collections       */  
                                 /* after this many milliseconds.  Not a  */  
                                 /* hard time bound.  Setting this to     */  
                                 /* GC_TIME_UNLIMITED will essentially    */  
                                 /* disable incremental collection while  */  
                                 /* leaving generational collection       */  
                                 /* enabled.                              */  
 #       define GC_TIME_UNLIMITED 999999  
                                 /* Setting GC_time_limit to this value   */  
                                 /* will disable the "pause time exceeded"*/  
                                 /* tests.                                */  
   
 /* Public procedures */  /* Public procedures */
   
 /* Initialize the collector.  This is only required when using thread-local  /* Initialize the collector.  This is only required when using thread-local
Line 330  GC_API unsigned long GC_time_limit; Line 86  GC_API unsigned long GC_time_limit;
  */   */
 GC_API void GC_init GC_PROTO((void));  GC_API void GC_init GC_PROTO((void));
   
   /* Disable garbage collection.  Even GC_gcollect calls will be          */
   /* ineffective.                                                         */
   GC_API void GC_disable(void);
   
   /* Try to re-enable garbage collection.  GC_disable() and GC_enable()   */
   /* calls nest.  Garbage collection is enabled if the number of calls to */
   /* both functions is equal.                                             */
   GC_API void GC_enable(void);
   
 /*  /*
  * general purpose allocation routines, with roughly malloc calling conv.   * general purpose allocation routines, with roughly malloc calling conv.
  * The atomic versions promise that no relevant pointers are contained   * The atomic versions promise that no relevant pointers are contained
Line 341  GC_API void GC_init GC_PROTO((void)); Line 106  GC_API void GC_init GC_PROTO((void));
  * collectable.  The object is scanned even if it does not appear to   * collectable.  The object is scanned even if it does not appear to
  * be reachable.  GC_malloc_uncollectable and GC_free called on the resulting   * be reachable.  GC_malloc_uncollectable and GC_free called on the resulting
  * object implicitly update GC_non_gc_bytes appropriately.   * object implicitly update GC_non_gc_bytes appropriately.
  *  
  * Note that the GC_malloc_stubborn support is stubbed out by default  
  * starting in 6.0.  GC_malloc_stubborn is an alias for GC_malloc unless  
  * the collector is built with STUBBORN_ALLOC defined.  
  */   */
 GC_API GC_PTR GC_malloc GC_PROTO((size_t size_in_bytes));  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_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.     */  /* Explicitly deallocate an object.  Dangerous if used incorrectly.     */
 /* Requires a pointer to the base of an object.                         */  /* Requires a pointer to the base of an object.                         */
Line 363  GC_API GC_PTR GC_malloc_atomic_uncollect Line 118  GC_API GC_PTR GC_malloc_atomic_uncollect
 /* GC_free(0) is a no-op, as required by ANSI C for free.               */  /* 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));  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.                           */  
 /* I.e. map an interior pointer to the corresponding bas pointer.       */  
 /* Note that with debugging allocation, this returns a pointer to the   */  
 /* actual base of the object, i.e. the debug information, not to        */  
 /* the base of the user 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  */  /* For compatibility with C library.  This is occasionally faster than  */
 /* a malloc followed by a bcopy.  But if you rely on that, either here  */  /* 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          */  /* or with the standard C library, your code is broken.  In my          */
Line 404  GC_API size_t GC_size GC_PROTO((GC_PTR o Line 126  GC_API size_t GC_size GC_PROTO((GC_PTR o
 /* If the argument is stubborn, the result will have changes enabled.   */  /* If the argument is stubborn, the result will have changes enabled.   */
 /* It is an error to have changes enabled for the original object.      */  /* It is an error to have changes enabled for the original object.      */
 /* Follows ANSI comventions for NULL old_object.                        */  /* Follows ANSI comventions for NULL old_object.                        */
 GC_API GC_PTR GC_realloc  GC_API GC_PTR GC_realloc GC_PROTO((GC_PTR old_object, size_t new_size_in_bytes));
         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.    */  /* Explicitly trigger a full, world-stop collection.    */
 GC_API void GC_gcollect GC_PROTO((void));  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  */  /* Return the number of bytes in the heap.  Excludes collector private  */
 /* data structures.  Includes empty blocks and fragmentation loss.      */  /* data structures.  Includes empty blocks and fragmentation loss.      */
 /* Includes some pages that were allocated but never written.           */  /* Includes some pages that were allocated but never written.           */
Line 478  GC_API size_t GC_get_bytes_since_gc GC_P Line 146  GC_API size_t GC_get_bytes_since_gc GC_P
 /* Never decreases.                                                     */  /* Never decreases.                                                     */
 GC_API size_t GC_get_total_bytes GC_PROTO((void));  GC_API size_t GC_get_total_bytes 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.               */  
 /* Only the generational piece of this is       */  
 /* functional if GC_parallel is TRUE            */  
 /* or if GC_time_limit is GC_TIME_UNLIMITED.    */  
 /* Causes GC_local_gcj_malloc() to revert to    */  
 /* locked allocation.  Must be called           */  
 /* before any GC_local_gcj_malloc() calls.      */  
 GC_API void GC_enable_incremental GC_PROTO((void));  
   
 /* Does incremental mode write-protect pages?  Returns zero or  */  
 /* more of the following, or'ed together:                       */  
 #define GC_PROTECTS_POINTER_HEAP  1 /* May protect non-atomic objs.     */  
 #define GC_PROTECTS_PTRFREE_HEAP  2  
 #define GC_PROTECTS_STATIC_DATA   4 /* Curently never.                  */  
 #define GC_PROTECTS_STACK         8 /* Probably impractical.            */  
   
 #define GC_PROTECTS_NONE 0  
 GC_API int GC_incremental_protection_needs 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  #if defined(__sgi) && !defined(__GNUC__) && _COMPILER_VERSION >= 720
 #   define GC_ADD_CALLER  #   define GC_ADD_CALLER
 #   define GC_RETURN_ADDR (GC_word)__return_address  #   define GC_RETURN_ADDR (GC_word)__return_address
Line 543  GC_API GC_PTR GC_malloc_atomic_ignore_of Line 161  GC_API GC_PTR GC_malloc_atomic_ignore_of
   
 /* Debugging (annotated) allocation.  GC_gcollect will check            */  /* Debugging (annotated) allocation.  GC_gcollect will check            */
 /* objects allocated in this way for overwrites, etc.                   */  /* objects allocated in this way for overwrites, etc.                   */
 GC_API GC_PTR GC_debug_malloc  GC_API GC_PTR GC_debug_malloc GC_PROTO((size_t size_in_bytes, GC_EXTRA_PARAMS));
         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_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 void GC_debug_free GC_PROTO((GC_PTR object_addr));
 GC_API GC_PTR GC_debug_realloc  GC_API GC_PTR GC_debug_realloc GC_PROTO((GC_PTR old_object, size_t new_size_in_bytes, GC_EXTRA_PARAMS));
         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));  
   
 /* Routines that allocate objects with debug information (like the      */  /* Routines that allocate objects with debug information (like the      */
 /* above), but just fill in dummy file and line number information.     */  /* above), but just fill in dummy file and line number information.     */
Line 571  GC_API void GC_debug_end_stubborn_change Line 179  GC_API void GC_debug_end_stubborn_change
 /*    leak detection.  This can be accomplished by instructing the      */  /*    leak detection.  This can be accomplished by instructing the      */
 /*    linker to replace malloc/realloc with these.                      */  /*    linker to replace malloc/realloc with these.                      */
 GC_API GC_PTR GC_debug_malloc_replacement GC_PROTO((size_t size_in_bytes));  GC_API GC_PTR GC_debug_malloc_replacement GC_PROTO((size_t size_in_bytes));
 GC_API GC_PTR GC_debug_realloc_replacement  GC_API GC_PTR GC_debug_realloc_replacement GC_PROTO((GC_PTR object_addr, size_t size_in_bytes));
               GC_PROTO((GC_PTR object_addr, size_t size_in_bytes));  
                                    
 # ifdef GC_DEBUG  # ifdef GC_DEBUG
 #   define GC_MALLOC(sz) GC_debug_malloc(sz, GC_EXTRAS)  #   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_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_REALLOC(old, sz) GC_debug_realloc(old, sz, GC_EXTRAS)
 #   define GC_FREE(p) GC_debug_free(p)  #   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_REGISTER_FINALIZER_NO_ORDER(p, f, d, of, od) \  
         GC_debug_register_finalizer_no_order(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  # else
 #   define GC_MALLOC(sz) GC_malloc(sz)  #   define GC_MALLOC(sz) GC_malloc(sz)
 #   define GC_MALLOC_ATOMIC(sz) GC_malloc_atomic(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_REALLOC(old, sz) GC_realloc(old, sz)
 #   define GC_FREE(p) GC_free(p)  #   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_REGISTER_FINALIZER_NO_ORDER(p, f, d, of, od) \  
         GC_register_finalizer_no_order(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  # endif
 /* The following are included because they are often convenient, and    */  /* The following are included because they are often convenient, and    */
 /* reduce the chance for a misspecifed size argument.  But calls may    */  /* reduce the chance for a misspecifed size argument.  But calls may    */
Line 618  GC_API GC_PTR GC_debug_realloc_replaceme Line 198  GC_API GC_PTR GC_debug_realloc_replaceme
 /* type expression.                                                     */  /* type expression.                                                     */
 # define GC_NEW(t) (t *)GC_MALLOC(sizeof (t))  # define GC_NEW(t) (t *)GC_MALLOC(sizeof (t))
 # define GC_NEW_ATOMIC(t) (t *)GC_MALLOC_ATOMIC(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.  And it helps if finalizable objects are split to      */  
 /* avoid cycles.                                                */  
 /* Note that cd will still be viewed as accessible, even if it  */  
 /* refers to the object itself.                                 */  
 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));  
   
 /* Another version of the above.  It ignores all cycles.        */  
 /* It should probably only be used by Java implementations.     */  
 /* Note that cd will still be viewed as accessible, even if it  */  
 /* refers to the object itself.                                 */  
 GC_API void GC_register_finalizer_no_order  
         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_no_order  
         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));  
   
 /* Returns !=0  if GC_invoke_finalizers has something to do.            */  
 GC_API int GC_should_invoke_finalizers GC_PROTO((void));  
   
 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. */  /* GC_set_warn_proc can be used to redirect or filter warning messages. */
 /* p may not be a NULL pointer.                                         */  /* p may not be a NULL pointer.                                         */
 typedef void (*GC_warn_proc) GC_PROTO((char *msg, GC_word arg));  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));  GC_API void 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. Java-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));  
   
 /* The following routines are primarily intended for use with a         */  
 /* preprocessor which inserts calls to check C pointer arithmetic.      */  
   
 /* 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 GC_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));  
   
   /* GC_ignore_warn_proc may be used as an argument for GC_set_warn_proc  */
   /* to suppress all warnings (unless statistics printing is turned on).  */
   GC_API void GC_ignore_warn_proc(char *, GC_word);
   
 /* For pthread support, we generally need to intercept a number of      */  
 /* thread library calls.  We do that here by macro defining them.       */  
   
 #if !defined(GC_USE_LD_WRAP) && \  GC_API int GC_pthread_create(pthread_t *, const pthread_attr_t *, void *(*)(void *), void * /* arg */);
     (defined(GC_PTHREADS) || defined(GC_SOLARIS_THREADS))  
 # include "gc_pthread_redirects.h"  
 #endif  
   
 # if defined(PCR) || defined(GC_SOLARIS_THREADS) || \  
      defined(GC_PTHREADS) || defined(GC_WIN32_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.                   */  
 /* It is used internally by gc_local_alloc.h, which provides a simpler  */  
 /* programming interface on Linux.                                      */  
 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 defined(GC_WIN32_THREADS)  #if defined(GC_WIN32_THREADS)
 # include <windows.h>  # include <windows.h>
Line 940  extern void GC_thr_init(); /* Needed for Line 247  extern void GC_thr_init(); /* Needed for
   
 #endif /* defined(GC_WIN32_THREADS) */  #endif /* defined(GC_WIN32_THREADS) */
   
 /*  
  * 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) || defined (_AIX)  
     /*  
      * Similarly gnu-win32 DLLs need explicit initialization from  
      * the main program, as does AIX.  
      */  
 #   define GC_INIT() { GC_add_roots(DATASTART, DATAEND); }  
 # else  
 #   define GC_INIT()  
 # endif  
 #endif  
   
 #if !defined(_WIN32_WCE) \  
     && ((defined(_MSDOS) || defined(_MSC_VER)) && (_M_IX86 >= 300) \  
         || defined(_WIN32) && !defined(__CYGWIN32__) && !defined(__CYGWIN__))  
   /* win32S may not free all resources on process exit.  */  
   /* This explicitly deallocates the heap.               */  
     GC_API void GC_win32_free_heap ();  
 #endif  
   
 #if ( defined(_AMIGA) && !defined(GC_AMIGA_MAKINGLIB) )  
   /* Allocation really goes through GC_amiga_allocwrapper_do */  
 # include "gc_amiga_redirects.h"  
 #endif  
   
 #if defined(GC_REDIRECT_TO_LOCAL) && !defined(GC_LOCAL_ALLOC_H)  
 #  include  "gc_local_alloc.h"  
 #endif  
   
 #ifdef __cplusplus  #ifdef __cplusplus
     }  /* end of extern "C" */      }  /* end of extern "C" */
 #endif  #endif
Removed from v.1.1.2.1  
changed lines
  Added in v.1.4

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