gcc/ggc-none.c

   1 /* Null garbage collection for the GNU compiler.
   2    Copyright (C) 1998, 1999 Free Software Foundation, Inc.
   3
   4    This file is part of GNU CC.
   5
   6    GNU CC is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    GNU CC is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with GNU CC; see the file COPYING.  If not, write to
  18    the Free Software Foundation, 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 /* This version is used by the gen* programs, where we don't really
  22    need GC at all.  This prevents problems with pulling in all the
  23    tree stuff.  */
  24
  25 /* We are used by gengenrtl, before genrtl.h exists.  But we don't
  26    need it either.  */
  27 #define NO_GENRTL_H
  28
  29 #include "config.h"
  30 #include "system.h"
  31 #include "rtl.h"
  32 #include "ggc.h"
  33
  34 /* For now, keep using the old obstack scheme in the gen* programs.  */
  35 int ggc_p = 0;
  36
  37 rtx
  38 ggc_alloc_rtx (nslots)
  39      int nslots;
  40 {
  41   int size = sizeof(struct rtx_def) + (nslots - 1) * sizeof(rtunion);
  42   rtx n;
  43
  44   n = (rtx) xmalloc (size);
  45   bzero ((char *) n, size);
  46
  47   return n;
  48 }
  49
  50 rtvec
  51 ggc_alloc_rtvec (nelt)
  52      int nelt;
  53 {
  54   int size = sizeof (struct rtvec_def) + (nelt - 1) * sizeof (rtunion);
  55   rtvec v;
  56
  57   v = (rtvec) xmalloc (size);
  58   bzero ((char *) v, size);
  59
  60   return v;
  61 }