gcc/config/m88k/sysv4.h

   1 /* Definitions of target machine for GNU compiler.
   2    Motorola 88100 in an 88open ABI environment.
   3    Copyright (C) 1990, 1991, 2000, 2001 Free Software Foundation, Inc.
   4
   5    Written by Ron Guilmette (rfg@netcom.com).
   6    Contributed to FSF by Network Computing Devices.
   7
   8    Other contributions by Vince Guarna (vguarna@urbana.mcd.mot.com),
   9    Ray Essick (essick@i88.isc.com), Wilson Tien (wtien@urbana.mcd.mot.com),
  10    and Tom Wood (Tom_Wood@NeXT.com)
  11
  12 This file is part of GNU CC.
  13
  14 GNU CC is free software; you can redistribute it and/or modify
  15 it under the terms of the GNU General Public License as published by
  16 the Free Software Foundation; either version 2, or (at your option)
  17 any later version.
  18
  19 GNU CC is distributed in the hope that it will be useful,
  20 but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22 GNU General Public License for more details.
  23
  24 You should have received a copy of the GNU General Public License
  25 along with GNU CC; see the file COPYING.  If not, write to
  26 the Free Software Foundation, 59 Temple Place - Suite 330,
  27 Boston, MA 02111-1307, USA.  */
  28
  29 /* DWARF_DEBUGGING_INFO defined in svr4.h.  */
  30
  31 #ifndef NO_BUGS
  32 #define AS_BUG_DOT_LABELS
  33 #define AS_BUG_POUND_TYPE
  34 #endif
  35
  36 /* TODO: convert includes to ${tm_file} list in config.gcc.  */
  37 #include "m88k/m88k.h"
  38
  39 /* Identify the compiler.  */
  40 #undef  VERSION_INFO1
  41 #define VERSION_INFO1 "88open ABI"
  42
  43 /* Default switches */
  44 #undef  TARGET_DEFAULT
  45 #define TARGET_DEFAULT  (MASK_CHECK_ZERO_DIV | \
  46                          MASK_OCS_DEBUG_INFO | \
  47                          MASK_SVR4)
  48
  49 /* Cpp spec.  These pre-assertions are needed for SVR4 as they occur
  50    often in the system header files.  __svr4__ is our extension.  */
  51
  52 #undef  CPP_PREDEFINES
  53 #define CPP_PREDEFINES \
  54   "-Dm88000 -Dm88k -Dunix -D__svr4__ -Amachine=m88k -Acpu=m88k -Asystem=unix -Asystem=svr4"
  55
  56 /* For the AT&T SVR4 port, the function is _mcount.  */
  57 #undef  FUNCTION_PROFILER
  58 #define FUNCTION_PROFILER(FILE, LABELNO) \
  59   output_function_profiler (FILE, LABELNO, "_mcount", 1)
  60
  61 /* Override svr4.h and m88k.h.  */
  62 #undef  INIT_SECTION_ASM_OP
  63 #define INIT_SECTION_ASM_OP "\tsection\t.init,\"xa\",#progbits"
  64 #undef  FINI_SECTION_ASM_OP
  65 #define FINI_SECTION_ASM_OP "\tsection\t.fini,\"xa\",#progbits"
  66
  67 /* Define the pseudo-ops used to switch to the .ctors and .dtors sections.
  68
  69    Note that we want to give these sections the SHF_WRITE attribute
  70    because these sections will actually contain data (i.e. tables of
  71    addresses of functions in the current root executable or shared library
  72    file) and, in the case of a shared library, the relocatable addresses
  73    will have to be properly resolved/relocated (and then written into) by
  74    the dynamic linker when it actually attaches the given shared library
  75    to the executing process.  (Note that on SVR4, you may wish to use the
  76    `-z text' option to the ELF linker, when building a shared library, as
  77    an additional check that you are doing everything right.  But if you do
  78    use the `-z text' option when building a shared library, you will get
  79    errors unless the .ctors and .dtors sections are marked as writable
  80    via the SHF_WRITE attribute.)  */
  81
  82 #undef  CTORS_SECTION_ASM_OP
  83 #define CTORS_SECTION_ASM_OP    "\tsection\t.ctors,\"aw\""
  84 #undef  DTORS_SECTION_ASM_OP
  85 #define DTORS_SECTION_ASM_OP    "\tsection\t.dtors,\"aw\""