gdb/gdb_obstack.h

   1 /* Obstack wrapper for GDB.
   2
   3    Copyright (C) 2002 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20    Boston, MA 02110-1301, USA.  */
  21
  22 #if !defined (GDB_OBSTACK_H)
  23 #define GDB_OBSTACK_H 1
  24
  25 #include "obstack.h"
  26
  27 /* Utility macros - wrap obstack alloc into something more robust.  */
  28
  29 #define OBSTACK_ZALLOC(OBSTACK,TYPE) (memset (obstack_alloc ((OBSTACK), sizeof (TYPE)), 0, sizeof (TYPE)))
  30
  31 #define OBSTACK_CALLOC(OBSTACK,NUMBER,TYPE) (memset (obstack_alloc ((OBSTACK), (NUMBER) * sizeof (TYPE)), 0, (NUMBER) * sizeof (TYPE)))
  32
  33 /* Unless explicitly specified, GDB obstacks always use xmalloc() and
  34    xfree().  */
  35 /* Note: ezannoni 2004-02-09: One could also specify the allocation
  36    functions using a special init function for each obstack,
  37    obstack_specify_allocation.  However we just use obstack_init and
  38    let these defines here do the job.  While one could argue the
  39    superiority of one approach over the other, we just chose one
  40    throughout.  */
  41
  42 #define obstack_chunk_alloc xmalloc
  43 #define obstack_chunk_free xfree
  44
  45 #endif