Reorganisation of the source tree

[ghc-hetmet.git] / ghc / rts / gmp / stack-alloc.c

diff --git a/ghc/rts/gmp/stack-alloc.c b/ghc/rts/gmp/stack-alloc.c
deleted file mode 100644 (file)
index 9ab98fe..0000000
--- a/ghc/rts/gmp/stack-alloc.c
+++ /dev/null
@@ -1,136 +0,0 @@
-/* Stack allocation routines.  This is intended for machines without support
-   for the `alloca' function.
-
-Copyright (C) 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
-
-This file is part of the GNU MP Library.
-
-The GNU MP Library is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or (at your
-option) any later version.
-
-The GNU MP Library is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
-License for more details.
-
-You should have received a copy of the GNU Lesser General Public License
-along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
-MA 02111-1307, USA. */
-
-#include "stack-alloc.h"
-
-#define __need_size_t
-#include <stddef.h>
-#undef __need_size_t
-
-/* gmp-impl.h and stack-alloc.h conflict when not USE_STACK_ALLOC, so these
-   declarations are copied here */
-#if __STDC__
-extern void *  (*__gmp_allocate_func) (size_t);
-extern void    (*__gmp_free_func) (void *, size_t);
-#else
-extern void *  (*__gmp_allocate_func) ();
-extern void    (*__gmp_free_func) ();
-#endif
-
-typedef struct tmp_stack tmp_stack;
-
-static unsigned long max_total_allocation = 0;
-static unsigned long current_total_allocation = 0;
-
-static tmp_stack xxx = {&xxx, &xxx, 0};
-static tmp_stack *current = &xxx;
-
-/* The rounded size of the header of each allocation block.  */
-#define HSIZ ((sizeof (tmp_stack) + __TMP_ALIGN - 1) & -__TMP_ALIGN)
-
-/* Allocate a block of exactly <size> bytes.  This should only be called
-   through the TMP_ALLOC macro, which takes care of rounding/alignment.  */
-void *
-#if __STDC__
-__gmp_tmp_alloc (unsigned long size)
-#else
-__gmp_tmp_alloc (size)
-     unsigned long size;
-#endif
-{
-  void *that;
-
-  if (size > (char *) current->end - (char *) current->alloc_point)
-    {
-      void *chunk;
-      tmp_stack *header;
-      unsigned long chunk_size;
-      unsigned long now;
-
-      /* Allocate a chunk that makes the total current allocation somewhat
-        larger than the maximum allocation ever.  If size is very large, we
-        allocate that much.  */
-
-      now = current_total_allocation + size;
-      if (now > max_total_allocation)
-       {
-         /* We need more temporary memory than ever before.  Increase
-            for future needs.  */
-         now = now * 3 / 2;
-         chunk_size = now - current_total_allocation + HSIZ;
-         current_total_allocation = now;
-         max_total_allocation = current_total_allocation;
-       }
-      else
-       {
-         chunk_size = max_total_allocation - current_total_allocation + HSIZ;
-         current_total_allocation = max_total_allocation;
-       }
-
-      chunk = (*__gmp_allocate_func) (chunk_size);
-      header = (tmp_stack *) chunk;
-      header->end = (char *) chunk + chunk_size;
-      header->alloc_point = (char *) chunk + HSIZ;
-      header->prev = current;
-      current = header;
-    }
-
-  that = current->alloc_point;
-  current->alloc_point = (char *) that + size;
-  return that;
-}
-
-/* Typically called at function entry.  <mark> is assigned so that
-   __gmp_tmp_free can later be used to reclaim all subsequently allocated
-   storage.  */
-void
-#if __STDC__
-__gmp_tmp_mark (tmp_marker *mark)
-#else
-__gmp_tmp_mark (mark)
-     tmp_marker *mark;
-#endif
-{
-  mark->which_chunk = current;
-  mark->alloc_point = current->alloc_point;
-}
-
-/* Free everything allocated since <mark> was assigned by __gmp_tmp_mark */
-void
-#if __STDC__
-__gmp_tmp_free (tmp_marker *mark)
-#else
-__gmp_tmp_free (mark)
-     tmp_marker *mark;
-#endif
-{
-  while (mark->which_chunk != current)
-    {
-      tmp_stack *tmp;
-
-      tmp = current;
-      current = tmp->prev;
-      current_total_allocation -= (((char *) (tmp->end) - (char *) tmp) - HSIZ);
-      (*__gmp_free_func) (tmp, (char *) tmp->end - (char *) tmp);
-    }
-  current->alloc_point = mark->alloc_point;
-}