=================================================================== RCS file: /home/cvs/OpenXM_contrib/gmp/Attic/memory.c,v retrieving revision 1.1 retrieving revision 1.1.1.2 diff -u -p -r1.1 -r1.1.1.2 --- OpenXM_contrib/gmp/Attic/memory.c 2000/01/10 15:35:22 1.1 +++ OpenXM_contrib/gmp/Attic/memory.c 2000/09/09 14:12:15 1.1.1.2 @@ -1,25 +1,26 @@ /* Memory allocation routines. -Copyright (C) 1991, 1993, 1994 Free Software Foundation, Inc. +Copyright (C) 1991, 1993, 1994, 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 Library General Public License as published by -the Free Software Foundation; either version 2 of the License, or (at your +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 Library General Public +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 Library General Public License +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 +#include /* for malloc, realloc, free */ #include "gmp.h" #include "gmp-impl.h" @@ -28,17 +29,13 @@ MA 02111-1307, USA. */ #define static #endif -#if __STDC__ -void * (*_mp_allocate_func) (size_t) = _mp_default_allocate; -void * (*_mp_reallocate_func) (void *, size_t, size_t) + +void * (*_mp_allocate_func) _PROTO ((size_t)) = _mp_default_allocate; +void * (*_mp_reallocate_func) _PROTO ((void *, size_t, size_t)) = _mp_default_reallocate; -void (*_mp_free_func) (void *, size_t) = _mp_default_free; -#else -void * (*_mp_allocate_func) () = _mp_default_allocate; -void * (*_mp_reallocate_func) () = _mp_default_reallocate; -void (*_mp_free_func) () = _mp_default_free; -#endif +void (*_mp_free_func) _PROTO ((void *, size_t)) = _mp_default_free; + /* Default allocation functions. In case of failure to allocate/reallocate an error message is written to stderr and the program aborts. */ @@ -51,14 +48,27 @@ _mp_default_allocate (size) #endif { void *ret; - +#ifdef DEBUG + size_t req_size = size; + size += 2 * BYTES_PER_MP_LIMB; +#endif ret = malloc (size); if (ret == 0) { perror ("cannot allocate in gmp"); abort (); } - + +#ifdef DEBUG + { + mp_ptr p = ret; + p++; + p[-1] = (0xdeadbeef << 31) + 0xdeafdeed; + if (req_size % BYTES_PER_MP_LIMB == 0) + p[req_size / BYTES_PER_MP_LIMB] = ~((0xdeadbeef << 31) + 0xdeafdeed); + ret = p; + } +#endif return ret; } @@ -74,6 +84,29 @@ _mp_default_reallocate (oldptr, old_size, new_size) { void *ret; +#ifdef DEBUG + size_t req_size = new_size; + + if (old_size != 0) + { + mp_ptr p = oldptr; + if (p[-1] != (0xdeadbeef << 31) + 0xdeafdeed) + { + fprintf (stderr, "gmp: (realloc) data clobbered before allocation block\n"); + abort (); + } + if (old_size % BYTES_PER_MP_LIMB == 0) + if (p[old_size / BYTES_PER_MP_LIMB] != ~((0xdeadbeef << 31) + 0xdeafdeed)) + { + fprintf (stderr, "gmp: (realloc) data clobbered after allocation block\n"); + abort (); + } + oldptr = p - 1; + } + + new_size += 2 * BYTES_PER_MP_LIMB; +#endif + ret = realloc (oldptr, new_size); if (ret == 0) { @@ -81,6 +114,16 @@ _mp_default_reallocate (oldptr, old_size, new_size) abort (); } +#ifdef DEBUG + { + mp_ptr p = ret; + p++; + p[-1] = (0xdeadbeef << 31) + 0xdeafdeed; + if (req_size % BYTES_PER_MP_LIMB == 0) + p[req_size / BYTES_PER_MP_LIMB] = ~((0xdeadbeef << 31) + 0xdeafdeed); + ret = p; + } +#endif return ret; } @@ -93,5 +136,25 @@ _mp_default_free (blk_ptr, blk_size) size_t blk_size; #endif { +#ifdef DEBUG + { + mp_ptr p = blk_ptr; + if (blk_size != 0) + { + if (p[-1] != (0xdeadbeef << 31) + 0xdeafdeed) + { + fprintf (stderr, "gmp: (free) data clobbered before allocation block\n"); + abort (); + } + if (blk_size % BYTES_PER_MP_LIMB == 0) + if (p[blk_size / BYTES_PER_MP_LIMB] != ~((0xdeadbeef << 31) + 0xdeafdeed)) + { + fprintf (stderr, "gmp: (free) data clobbered after allocation block\n"); + abort (); + } + } + blk_ptr = p - 1; + } +#endif free (blk_ptr); }