gcc/config/sparc/sunos4.h

   1 /* Definitions of target machine for GNU compiler, for SunOS 4.x
   2    Copyright (C) 1994, 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 #define SUNOS4_SHARED_LIBRARIES 1
  22
  23 /* Use N_BINCL stabs.  */
  24
  25 #define DBX_USE_BINCL
  26
  27 #include "sparc/sparc.h"
  28
  29 /* The Sun as doesn't like unaligned data.  */
  30 #define DWARF2_UNWIND_INFO 0
  31
  32 /* Override MACHINE_STATE_{SAVE,RESTORE} because we have special
  33    traps available which can get and set the condition codes
  34    reliably.  */
  35 #undef MACHINE_STATE_SAVE
  36 #define MACHINE_STATE_SAVE(ID)                          \
  37   unsigned long int ms_flags, ms_saveret;               \
  38   asm volatile("ta      0x20\n\t"                       \
  39                "mov     %%g1, %0\n\t"                   \
  40                "mov     %%g2, %1\n\t"                   \
  41                : "=r" (ms_flags), "=r" (ms_saveret));
  42
  43 #undef MACHINE_STATE_RESTORE
  44 #define MACHINE_STATE_RESTORE(ID)                       \
  45   asm volatile("mov     %0, %%g1\n\t"                   \
  46                "mov     %1, %%g2\n\t"                   \
  47                "ta      0x21\n\t"                       \
  48                : /* no outputs */                       \
  49                : "r" (ms_flags), "r" (ms_saveret));
  50
  51 /* SunOS has on_exit instead of atexit.  */
  52 /* The man page says it returns int. */
  53 extern int on_exit PARAMS ((void *, void *));
  54 #define ON_EXIT(FUNC) on_exit ((FUNC), 0)
  55 #define NEED_ATEXIT