gcc/config/xm-interix.h

   1 /* Configuration for GNU compiler for processor running Interix
   2    Copyright (C) 1993, 1995, 1999, 2001 Free Software Foundation, Inc.
   3    Donn Terry, Softway Systems, Inc,
   4    from code
   5       Contributed by Douglas B. Rupp (drupp@cs.washington.edu)
   6
   7 This file is part of GNU CC.
   8
   9 GNU CC is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 2, or (at your option)
  12 any later version.
  13
  14 GNU CC is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with GNU CC; see the file COPYING.  If not, write to
  21 the Free Software Foundation, 59 Temple Place - Suite 330,
  22 Boston, MA 02111-1307, USA.  */
  23
  24 /* Our strategy for finding global constructors is a bit different, although
  25    not a lot. */
  26 #define DO_GLOBAL_CTORS_BODY                                            \
  27 do {                                                                    \
  28   int i;                                                                \
  29   unsigned long nptrs;                                                  \
  30   func_ptr *p;                                                          \
  31   asm(                                                                  \
  32        "     .section .ctor_head, \"rw\"\n"                             \
  33        "1:\n"                                                           \
  34        "     .text \n"                                                  \
  35        ASM_LOAD_ADDR(1b,%0)                                             \
  36        : "=r" (p) : : "cc");                                            \
  37   for (nptrs = 0; p[nptrs] != 0; nptrs++);                              \
  38   for (i = nptrs-1; i >= 0; i--)                                        \
  39     p[i] ();                                                            \
  40 } while (0)
  41
  42 #define DO_GLOBAL_DTORS_BODY                                            \
  43 do {                                                                    \
  44   func_ptr *p;                                                          \
  45   asm(                                                                  \
  46        "     .section .dtor_head, \"rw\"\n"                             \
  47        "1:\n"                                                           \
  48        "     .text \n"                                                  \
  49        ASM_LOAD_ADDR(1b,%0)                                             \
  50        : "=r" (p) : : "cc");                                            \
  51   while (*p)                                                            \
  52     {                                                                   \
  53       p++;                                                              \
  54       (*(p-1)) ();                                                      \
  55     }                                                                   \
  56 } while (0)