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Diff for /OpenXM_contrib2/asir2000/gc/dbg_mlc.c between version 1.4 and 1.7

version 1.4, 2001/04/20 07:39:18 version 1.7, 2003/06/24 05:11:32
Line 26  GC_API void GC_register_finalizer_no_order
Line 26  GC_API void GC_register_finalizer_no_order
 /* Check whether object with base pointer p has debugging info  */  /* Check whether object with base pointer p has debugging info  */
 /* p is assumed to point to a legitimate object in our part     */  /* p is assumed to point to a legitimate object in our part     */
 /* of the heap.                                                 */  /* of the heap.                                                 */
 /* This excludes the check as to whether tha back pointer is    */  /* This excludes the check as to whether the back pointer is    */
 /* odd, which is added by the GC_HAS_DEBUG_INFO macro.          */  /* odd, which is added by the GC_HAS_DEBUG_INFO macro.          */
 /* Note that if DBG_HDRS_ALL is set, uncollectable objects      */  /* Note that if DBG_HDRS_ALL is set, uncollectable objects      */
 /* on free lists may not have debug information set.  Thus it's */  /* on free lists may not have debug information set.  Thus it's */
Line 40  ptr_t p;
Line 40  ptr_t p;
     register word sz = GC_size((ptr_t) ohdr);      register word sz = GC_size((ptr_t) ohdr);
   
     if (HBLKPTR((ptr_t)ohdr) != HBLKPTR((ptr_t)body)      if (HBLKPTR((ptr_t)ohdr) != HBLKPTR((ptr_t)body)
         || sz < sizeof (oh)) {          || sz < DEBUG_BYTES + EXTRA_BYTES) {
         return(FALSE);          return(FALSE);
     }      }
     if (ohdr -> oh_sz == sz) {      if (ohdr -> oh_sz == sz) {
Line 60  ptr_t p;
Line 60  ptr_t p;
 # include <stdlib.h>  # include <stdlib.h>
   
 # if defined(LINUX) || defined(SUNOS4) || defined(SUNOS5) \  # if defined(LINUX) || defined(SUNOS4) || defined(SUNOS5) \
      || defined(HPUX) || defined(IRIX) || defined(OSF1)       || defined(HPUX) || defined(IRIX5) || defined(OSF1)
 #   define RANDOM() random()  #   define RANDOM() random()
 # else  # else
 #   define RANDOM() (long)rand()  #   define RANDOM() (long)rand()
Line 228  ptr_t p;
Line 228  ptr_t p;
   
 #endif /* KEEP_BACK_PTRS */  #endif /* KEEP_BACK_PTRS */
   
   # define CROSSES_HBLK(p, sz) \
           (((word)(p + sizeof(oh) + sz - 1) ^ (word)p) >= HBLKSIZE)
 /* Store debugging info into p.  Return displaced pointer. */  /* Store debugging info into p.  Return displaced pointer. */
 /* Assumes we don't hold allocation lock.                  */  /* Assumes we don't hold allocation lock.                  */
 ptr_t GC_store_debug_info(p, sz, string, integer)  ptr_t GC_store_debug_info(p, sz, string, integer)
 register ptr_t p;       /* base pointer */  register ptr_t p;       /* base pointer */
 word sz;        /* bytes */  word sz;        /* bytes */
 char * string;  GC_CONST char * string;
 word integer;  word integer;
 {  {
     register word * result = (word *)((oh *)p + 1);      register word * result = (word *)((oh *)p + 1);
Line 243  word integer;
Line 245  word integer;
     /* But that's expensive.  And this way things should only appear    */      /* But that's expensive.  And this way things should only appear    */
     /* inconsistent while we're in the handler.                         */      /* inconsistent while we're in the handler.                         */
     LOCK();      LOCK();
       GC_ASSERT(GC_size(p) >= sizeof(oh) + sz);
       GC_ASSERT(!(SMALL_OBJ(sz) && CROSSES_HBLK(p, sz)));
 #   ifdef KEEP_BACK_PTRS  #   ifdef KEEP_BACK_PTRS
       ((oh *)p) -> oh_back_ptr = HIDE_BACK_PTR(NOT_MARKED);        ((oh *)p) -> oh_back_ptr = HIDE_BACK_PTR(NOT_MARKED);
 #   endif  #   endif
   #   ifdef MAKE_BACK_GRAPH
         ((oh *)p) -> oh_bg_ptr = HIDE_BACK_PTR((ptr_t)0);
   #   endif
     ((oh *)p) -> oh_string = string;      ((oh *)p) -> oh_string = string;
     ((oh *)p) -> oh_int = integer;      ((oh *)p) -> oh_int = integer;
 #   ifndef SHORT_DBG_HDRS  #   ifndef SHORT_DBG_HDRS
       ((oh *)p) -> oh_sz = sz;        ((oh *)p) -> oh_sz = sz;
       ((oh *)p) -> oh_sf = START_FLAG ^ (word)result;        ((oh *)p) -> oh_sf = START_FLAG ^ (word)result;
       ((word *)p)[BYTES_TO_WORDS(GC_size(p))-1] =        ((word *)p)[BYTES_TO_WORDS(GC_size(p))-1] =
          result[ROUNDED_UP_WORDS(sz)] = END_FLAG ^ (word)result;           result[SIMPLE_ROUNDED_UP_WORDS(sz)] = END_FLAG ^ (word)result;
 #   endif  #   endif
     UNLOCK();      UNLOCK();
     return((ptr_t)result);      return((ptr_t)result);
Line 272  word integer;
Line 279  word integer;
     /* There is some argument that we should disable signals here.      */      /* There is some argument that we should disable signals here.      */
     /* But that's expensive.  And this way things should only appear    */      /* But that's expensive.  And this way things should only appear    */
     /* inconsistent while we're in the handler.                         */      /* inconsistent while we're in the handler.                         */
       GC_ASSERT(GC_size(p) >= sizeof(oh) + sz);
       GC_ASSERT(!(SMALL_OBJ(sz) && CROSSES_HBLK(p, sz)));
 #   ifdef KEEP_BACK_PTRS  #   ifdef KEEP_BACK_PTRS
       ((oh *)p) -> oh_back_ptr = 0;        ((oh *)p) -> oh_back_ptr = HIDE_BACK_PTR(NOT_MARKED);
 #   endif  #   endif
   #   ifdef MAKE_BACK_GRAPH
         ((oh *)p) -> oh_bg_ptr = HIDE_BACK_PTR((ptr_t)0);
   #   endif
     ((oh *)p) -> oh_string = string;      ((oh *)p) -> oh_string = string;
     ((oh *)p) -> oh_int = integer;      ((oh *)p) -> oh_int = integer;
 #   ifndef SHORT_DBG_HDRS  #   ifndef SHORT_DBG_HDRS
       ((oh *)p) -> oh_sz = sz;        ((oh *)p) -> oh_sz = sz;
       ((oh *)p) -> oh_sf = START_FLAG ^ (word)result;        ((oh *)p) -> oh_sf = START_FLAG ^ (word)result;
       ((word *)p)[BYTES_TO_WORDS(GC_size(p))-1] =        ((word *)p)[BYTES_TO_WORDS(GC_size(p))-1] =
          result[ROUNDED_UP_WORDS(sz)] = END_FLAG ^ (word)result;           result[SIMPLE_ROUNDED_UP_WORDS(sz)] = END_FLAG ^ (word)result;
 #   endif  #   endif
     return((ptr_t)result);      return((ptr_t)result);
 }  }
Line 305  register oh * ohdr;
Line 317  register oh * ohdr;
     if (((word *)ohdr)[BYTES_TO_WORDS(gc_sz)-1] != (END_FLAG ^ (word)body)) {      if (((word *)ohdr)[BYTES_TO_WORDS(gc_sz)-1] != (END_FLAG ^ (word)body)) {
         return((ptr_t)((word *)ohdr + BYTES_TO_WORDS(gc_sz)-1));          return((ptr_t)((word *)ohdr + BYTES_TO_WORDS(gc_sz)-1));
     }      }
     if (((word *)body)[ROUNDED_UP_WORDS(ohdr -> oh_sz)]      if (((word *)body)[SIMPLE_ROUNDED_UP_WORDS(ohdr -> oh_sz)]
         != (END_FLAG ^ (word)body)) {          != (END_FLAG ^ (word)body)) {
         return((ptr_t)((word *)body + ROUNDED_UP_WORDS(ohdr -> oh_sz)));          return((ptr_t)((word *)body + SIMPLE_ROUNDED_UP_WORDS(ohdr -> oh_sz)));
     }      }
     return(0);      return(0);
 }  }
Line 318  ptr_t p;
Line 330  ptr_t p;
 {  {
     register oh * ohdr = (oh *)GC_base(p);      register oh * ohdr = (oh *)GC_base(p);
   
       GC_ASSERT(!I_HOLD_LOCK());
     GC_err_printf1("0x%lx (", ((unsigned long)ohdr + sizeof(oh)));      GC_err_printf1("0x%lx (", ((unsigned long)ohdr + sizeof(oh)));
     GC_err_puts(ohdr -> oh_string);      GC_err_puts(ohdr -> oh_string);
 #   ifdef SHORT_DBG_HDRS  #   ifdef SHORT_DBG_HDRS
       GC_err_printf1(":%ld, sz=%ld)\n", (unsigned long)(ohdr -> oh_int));        GC_err_printf1(":%ld)\n", (unsigned long)(ohdr -> oh_int));
 #   else  #   else
       GC_err_printf2(":%ld, sz=%ld)\n", (unsigned long)(ohdr -> oh_int),        GC_err_printf2(":%ld, sz=%ld)\n", (unsigned long)(ohdr -> oh_int),
                                         (unsigned long)(ohdr -> oh_sz));                                          (unsigned long)(ohdr -> oh_sz));
Line 336  ptr_t p;
Line 349  ptr_t p;
     ptr_t p;      ptr_t p;
 # endif  # endif
 {  {
       GC_ASSERT(!I_HOLD_LOCK());
     if (GC_HAS_DEBUG_INFO(p)) {      if (GC_HAS_DEBUG_INFO(p)) {
         GC_print_obj(p);          GC_print_obj(p);
     } else {      } else {
Line 349  ptr_t p, clobbered_addr;
Line 363  ptr_t p, clobbered_addr;
 {  {
     register oh * ohdr = (oh *)GC_base(p);      register oh * ohdr = (oh *)GC_base(p);
   
       GC_ASSERT(!I_HOLD_LOCK());
     GC_err_printf2("0x%lx in object at 0x%lx(", (unsigned long)clobbered_addr,      GC_err_printf2("0x%lx in object at 0x%lx(", (unsigned long)clobbered_addr,
                                                 (unsigned long)p);                                                  (unsigned long)p);
     if (clobbered_addr <= (ptr_t)(&(ohdr -> oh_sz))      if (clobbered_addr <= (ptr_t)(&(ohdr -> oh_sz))
Line 370  ptr_t p, clobbered_addr;
Line 385  ptr_t p, clobbered_addr;
   
 void GC_check_heap_proc GC_PROTO((void));  void GC_check_heap_proc GC_PROTO((void));
   
   void GC_print_all_smashed_proc GC_PROTO((void));
   
 void GC_do_nothing() {}  void GC_do_nothing() {}
   
 void GC_start_debugging()  void GC_start_debugging()
 {  {
 #   ifndef SHORT_DBG_HDRS  #   ifndef SHORT_DBG_HDRS
       GC_check_heap = GC_check_heap_proc;        GC_check_heap = GC_check_heap_proc;
         GC_print_all_smashed = GC_print_all_smashed_proc;
 #   else  #   else
       GC_check_heap = GC_do_nothing;        GC_check_heap = GC_do_nothing;
         GC_print_all_smashed = GC_do_nothing;
 #   endif  #   endif
     GC_print_heap_obj = GC_debug_print_heap_obj_proc;      GC_print_heap_obj = GC_debug_print_heap_obj_proc;
     GC_debugging_started = TRUE;      GC_debugging_started = TRUE;
Line 423  void GC_start_debugging()
Line 442  void GC_start_debugging()
     return (GC_store_debug_info(result, (word)lb, s, (word)i));      return (GC_store_debug_info(result, (word)lb, s, (word)i));
 }  }
   
   # ifdef __STDC__
       GC_PTR GC_debug_malloc_ignore_off_page(size_t lb, GC_EXTRA_PARAMS)
   # else
       GC_PTR GC_debug_malloc_ignore_off_page(lb, s, i)
       size_t lb;
       char * s;
       int i;
   #   ifdef GC_ADD_CALLER
           --> GC_ADD_CALLER not implemented for K&R C
   #   endif
   # endif
   {
       GC_PTR result = GC_malloc_ignore_off_page(lb + DEBUG_BYTES);
   
       if (result == 0) {
           GC_err_printf1("GC_debug_malloc_ignore_off_page(%ld) returning NIL (",
                          (unsigned long) lb);
           GC_err_puts(s);
           GC_err_printf1(":%ld)\n", (unsigned long)i);
           return(0);
       }
       if (!GC_debugging_started) {
           GC_start_debugging();
       }
       ADD_CALL_CHAIN(result, ra);
       return (GC_store_debug_info(result, (word)lb, s, (word)i));
   }
   
   # ifdef __STDC__
       GC_PTR GC_debug_malloc_atomic_ignore_off_page(size_t lb, GC_EXTRA_PARAMS)
   # else
       GC_PTR GC_debug_malloc_atomic_ignore_off_page(lb, s, i)
       size_t lb;
       char * s;
       int i;
   #   ifdef GC_ADD_CALLER
           --> GC_ADD_CALLER not implemented for K&R C
   #   endif
   # endif
   {
       GC_PTR result = GC_malloc_atomic_ignore_off_page(lb + DEBUG_BYTES);
   
       if (result == 0) {
           GC_err_printf1("GC_debug_malloc_atomic_ignore_off_page(%ld)"
                          " returning NIL (", (unsigned long) lb);
           GC_err_puts(s);
           GC_err_printf1(":%ld)\n", (unsigned long)i);
           return(0);
       }
       if (!GC_debugging_started) {
           GC_start_debugging();
       }
       ADD_CALL_CHAIN(result, ra);
       return (GC_store_debug_info(result, (word)lb, s, (word)i));
   }
   
 # ifdef DBG_HDRS_ALL  # ifdef DBG_HDRS_ALL
 /*  /*
  * An allocation function for internal use.   * An allocation function for internal use.
Line 441  void GC_start_debugging()
Line 516  void GC_start_debugging()
                        (unsigned long) lb);                         (unsigned long) lb);
         return(0);          return(0);
     }      }
     ADD_CALL_CHAIN(result, ra);      ADD_CALL_CHAIN(result, GC_RETURN_ADDR);
     return (GC_store_debug_info_inner(result, (word)lb, "INTERNAL", (word)0));      return (GC_store_debug_info_inner(result, (word)lb, "INTERNAL", (word)0));
   }    }
   
Line 455  void GC_start_debugging()
Line 530  void GC_start_debugging()
                        (unsigned long) lb);                         (unsigned long) lb);
         return(0);          return(0);
     }      }
     ADD_CALL_CHAIN(result, ra);      ADD_CALL_CHAIN(result, GC_RETURN_ADDR);
     return (GC_store_debug_info_inner(result, (word)lb, "INTERNAL", (word)0));      return (GC_store_debug_info_inner(result, (word)lb, "INTERNAL", (word)0));
   }    }
 # endif  # endif
Line 586  GC_PTR p;
Line 661  GC_PTR p;
     int i;      int i;
 # endif  # endif
 {  {
     GC_PTR result = GC_malloc_uncollectable(lb + DEBUG_BYTES);      GC_PTR result = GC_malloc_uncollectable(lb + UNCOLLECTABLE_DEBUG_BYTES);
   
     if (result == 0) {      if (result == 0) {
         GC_err_printf1("GC_debug_malloc_uncollectable(%ld) returning NIL (",          GC_err_printf1("GC_debug_malloc_uncollectable(%ld) returning NIL (",
Line 612  GC_PTR p;
Line 687  GC_PTR p;
     int i;      int i;
 # endif  # endif
 {  {
     GC_PTR result = GC_malloc_atomic_uncollectable(lb + DEBUG_BYTES);      GC_PTR result =
           GC_malloc_atomic_uncollectable(lb + UNCOLLECTABLE_DEBUG_BYTES);
   
     if (result == 0) {      if (result == 0) {
         GC_err_printf1(          GC_err_printf1(
Line 768  void GC_debug_free_inner(GC_PTR p)
Line 844  void GC_debug_free_inner(GC_PTR p)
 }  }
   
 #ifndef SHORT_DBG_HDRS  #ifndef SHORT_DBG_HDRS
   
   /* List of smashed objects.  We defer printing these, since we can't    */
   /* always print them nicely with the allocation lock held.              */
   /* We put them here instead of in GC_arrays, since it may be useful to  */
   /* be able to look at them with the debugger.                           */
   #define MAX_SMASHED 20
   ptr_t GC_smashed[MAX_SMASHED];
   unsigned GC_n_smashed = 0;
   
   # if defined(__STDC__) || defined(__cplusplus)
       void GC_add_smashed(ptr_t smashed)
   # else
       void GC_add_smashed(smashed)
       ptr_t smashed;
   #endif
   {
       GC_ASSERT(GC_is_marked(GC_base(smashed)));
       GC_smashed[GC_n_smashed] = smashed;
       if (GC_n_smashed < MAX_SMASHED - 1) ++GC_n_smashed;
         /* In case of overflow, we keep the first MAX_SMASHED-1   */
         /* entries plus the last one.                             */
       GC_have_errors = TRUE;
   }
   
   /* Print all objects on the list.  Clear the list.      */
   void GC_print_all_smashed_proc ()
   {
       unsigned i;
   
       GC_ASSERT(!I_HOLD_LOCK());
       if (GC_n_smashed == 0) return;
       GC_err_printf0("GC_check_heap_block: found smashed heap objects:\n");
       for (i = 0; i < GC_n_smashed; ++i) {
           GC_print_smashed_obj(GC_base(GC_smashed[i]), GC_smashed[i]);
           GC_smashed[i] = 0;
       }
       GC_n_smashed = 0;
   }
   
 /* Check all marked objects in the given block for validity */  /* Check all marked objects in the given block for validity */
 /*ARGSUSED*/  /*ARGSUSED*/
 # if defined(__STDC__) || defined(__cplusplus)  # if defined(__STDC__) || defined(__cplusplus)
Line 796  void GC_debug_free_inner(GC_PTR p)
Line 911  void GC_debug_free_inner(GC_PTR p)
                 && GC_HAS_DEBUG_INFO((ptr_t)p)) {                  && GC_HAS_DEBUG_INFO((ptr_t)p)) {
                 ptr_t clobbered = GC_check_annotated_obj((oh *)p);                  ptr_t clobbered = GC_check_annotated_obj((oh *)p);
   
                 if (clobbered != 0) {                  if (clobbered != 0) GC_add_smashed(clobbered);
                     GC_err_printf0(  
                         "GC_check_heap_block: found smashed location at ");  
                     GC_print_smashed_obj((ptr_t)p, clobbered);  
                 }  
             }              }
             word_no += sz;              word_no += sz;
             p += sz;              p += sz;
Line 813  void GC_debug_free_inner(GC_PTR p)
Line 924  void GC_debug_free_inner(GC_PTR p)
 void GC_check_heap_proc()  void GC_check_heap_proc()
 {  {
 #   ifndef SMALL_CONFIG  #   ifndef SMALL_CONFIG
         if (sizeof(oh) & (2 * sizeof(word) - 1) != 0) {  #     ifdef ALIGN_DOUBLE
             ABORT("Alignment problem: object header has inappropriate size\n");          GC_STATIC_ASSERT((sizeof(oh) & (2 * sizeof(word) - 1)) == 0);
         }  #     else
           GC_STATIC_ASSERT((sizeof(oh) & (sizeof(word) - 1)) == 0);
   #     endif
 #   endif  #   endif
     GC_apply_to_all_blocks(GC_check_heap_block, (word)0);      GC_apply_to_all_blocks(GC_check_heap_block, (word)0);
 }  }
Line 836  struct closure {
Line 949  struct closure {
 # endif  # endif
 {  {
     struct closure * result =      struct closure * result =
 #               ifdef DBG_HDRS_ALL  #   ifdef DBG_HDRS_ALL
                   (struct closure *) GC_debug_malloc(sizeof (struct closure),        (struct closure *) GC_debug_malloc(sizeof (struct closure),
                                                      GC_EXTRAS);                                           GC_EXTRAS);
 #               else  #   else
                   (struct closure *) GC_malloc(sizeof (struct closure));        (struct closure *) GC_malloc(sizeof (struct closure));
 #               endif  #   endif
   
     result -> cl_fn = fn;      result -> cl_fn = fn;
     result -> cl_data = data;      result -> cl_data = data;
Line 861  struct closure {
Line 974  struct closure {
     (*(cl -> cl_fn))((GC_PTR)((char *)obj + sizeof(oh)), cl -> cl_data);      (*(cl -> cl_fn))((GC_PTR)((char *)obj + sizeof(oh)), cl -> cl_data);
 }  }
   
   /* Set ofn and ocd to reflect the values we got back.   */
   static void store_old (obj, my_old_fn, my_old_cd, ofn, ocd)
   GC_PTR obj;
   GC_finalization_proc my_old_fn;
   struct closure * my_old_cd;
   GC_finalization_proc *ofn;
   GC_PTR *ocd;
   {
       if (0 != my_old_fn) {
         if (my_old_fn != GC_debug_invoke_finalizer) {
           GC_err_printf1("Debuggable object at 0x%lx had non-debug finalizer.\n",
                          obj);
           /* This should probably be fatal. */
         } else {
           if (ofn) *ofn = my_old_cd -> cl_fn;
           if (ocd) *ocd = my_old_cd -> cl_data;
         }
       } else {
         if (ofn) *ofn = 0;
         if (ocd) *ocd = 0;
       }
   }
   
 # ifdef __STDC__  # ifdef __STDC__
     void GC_debug_register_finalizer(GC_PTR obj, GC_finalization_proc fn,      void GC_debug_register_finalizer(GC_PTR obj, GC_finalization_proc fn,
Line 875  struct closure {
Line 1010  struct closure {
     GC_PTR *ocd;      GC_PTR *ocd;
 # endif  # endif
 {  {
       GC_finalization_proc my_old_fn;
       GC_PTR my_old_cd;
     ptr_t base = GC_base(obj);      ptr_t base = GC_base(obj);
     if (0 == base || (ptr_t)obj - base != sizeof(oh)) {      if (0 == base || (ptr_t)obj - base != sizeof(oh)) {
         GC_err_printf1(          GC_err_printf1(
             "GC_register_finalizer called with non-base-pointer 0x%lx\n",              "GC_debug_register_finalizer called with non-base-pointer 0x%lx\n",
             obj);              obj);
     }      }
     GC_register_finalizer(base, GC_debug_invoke_finalizer,      if (0 == fn) {
                           GC_make_closure(fn,cd), ofn, ocd);        GC_register_finalizer(base, 0, 0, &my_old_fn, &my_old_cd);
       } else {
         GC_register_finalizer(base, GC_debug_invoke_finalizer,
                               GC_make_closure(fn,cd), &my_old_fn, &my_old_cd);
       }
       store_old(obj, my_old_fn, (struct closure *)my_old_cd, ofn, ocd);
 }  }
   
 # ifdef __STDC__  # ifdef __STDC__
Line 900  struct closure {
Line 1042  struct closure {
     GC_PTR *ocd;      GC_PTR *ocd;
 # endif  # endif
 {  {
       GC_finalization_proc my_old_fn;
       GC_PTR my_old_cd;
     ptr_t base = GC_base(obj);      ptr_t base = GC_base(obj);
     if (0 == base || (ptr_t)obj - base != sizeof(oh)) {      if (0 == base || (ptr_t)obj - base != sizeof(oh)) {
         GC_err_printf1(          GC_err_printf1(
           "GC_register_finalizer_no_order called with non-base-pointer 0x%lx\n",            "GC_debug_register_finalizer_no_order called with non-base-pointer 0x%lx\n",
           obj);            obj);
     }      }
     GC_register_finalizer_no_order(base, GC_debug_invoke_finalizer,      if (0 == fn) {
                                       GC_make_closure(fn,cd), ofn, ocd);        GC_register_finalizer_no_order(base, 0, 0, &my_old_fn, &my_old_cd);
       } else {
         GC_register_finalizer_no_order(base, GC_debug_invoke_finalizer,
                                        GC_make_closure(fn,cd), &my_old_fn,
                                        &my_old_cd);
       }
       store_old(obj, my_old_fn, (struct closure *)my_old_cd, ofn, ocd);
  }   }
   
 # ifdef __STDC__  # ifdef __STDC__
Line 925  struct closure {
Line 1075  struct closure {
     GC_PTR *ocd;      GC_PTR *ocd;
 # endif  # endif
 {  {
       GC_finalization_proc my_old_fn;
       GC_PTR my_old_cd;
     ptr_t base = GC_base(obj);      ptr_t base = GC_base(obj);
     if (0 == base || (ptr_t)obj - base != sizeof(oh)) {      if (0 == base || (ptr_t)obj - base != sizeof(oh)) {
         GC_err_printf1(          GC_err_printf1(
             "GC_register_finalizer_ignore_self called with non-base-pointer 0x%lx\n",              "GC_debug_register_finalizer_ignore_self called with non-base-pointer 0x%lx\n",
             obj);              obj);
     }      }
     GC_register_finalizer_ignore_self(base, GC_debug_invoke_finalizer,      if (0 == fn) {
                                       GC_make_closure(fn,cd), ofn, ocd);        GC_register_finalizer_ignore_self(base, 0, 0, &my_old_fn, &my_old_cd);
       } else {
         GC_register_finalizer_ignore_self(base, GC_debug_invoke_finalizer,
                                        GC_make_closure(fn,cd), &my_old_fn,
                                        &my_old_cd);
       }
       store_old(obj, my_old_fn, (struct closure *)my_old_cd, ofn, ocd);
 }  }
   
   #ifdef GC_ADD_CALLER
   # define RA GC_RETURN_ADDR,
   #else
   # define RA
   #endif
   
 GC_PTR GC_debug_malloc_replacement(lb)  GC_PTR GC_debug_malloc_replacement(lb)
 size_t lb;  size_t lb;
 {  {
     return GC_debug_malloc(lb, "unknown", 0);      return GC_debug_malloc(lb, RA "unknown", 0);
 }  }
   
 GC_PTR GC_debug_realloc_replacement(p, lb)  GC_PTR GC_debug_realloc_replacement(p, lb)
 GC_PTR p;  GC_PTR p;
 size_t lb;  size_t lb;
 {  {
     return GC_debug_realloc(p, lb, "unknown", 0);      return GC_debug_realloc(p, lb, RA "unknown", 0);
 }  }
Legend:
Removed from v.1.4  
changed lines
  Added in v.1.7
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