gcc/config/rs6000/linux.h

   1 /* Definitions of target machine for GNU compiler,
   2    for IBM RS/6000 running AIX version 3.1.
   3    Copyright (C) 1996, 1997 Free Software Foundation, Inc.
   4    Contributed by Michael Meissner (meissner@cygnus.com).
   5
   6 This file is part of GNU CC.
   7
   8 GNU CC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2, or (at your option)
  11 any later version.
  12
  13 GNU CC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GNU CC; see the file COPYING.  If not, write to
  20 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  21
  22 #include "rs6000/sysv4.h"
  23
  24 #undef CPP_PREDEFINES
  25 #define CPP_PREDEFINES \
  26  "-DPPC -Dunix -Dlinux -Dpowerpc -Asystem(unix) -Asystem(linux) -Acpu(powerpc) -Amachine(powerpc)"
  27
  28 #undef LINK_SPEC
  29 #define LINK_SPEC "-m elf32ppc %{shared:-shared} \
  30   %{!shared: \
  31     %{!static: \
  32       %{rdynamic:-export-dynamic} \
  33       %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}} \
  34     %{static:-static}}"
  35
  36 #undef  LIB_DEFAULT_SPEC
  37 #define LIB_DEFAULT_SPEC "%(lib_linux)"
  38
  39 #undef  STARTFILE_DEFAULT_SPEC
  40 #define STARTFILE_DEFAULT_SPEC "%(startfile_linux)"
  41
  42 #undef  ENDFILE_DEFAULT_SPEC
  43 #define ENDFILE_DEFAULT_SPEC "%(endfile_linux)"
  44
  45 #undef  LINK_START_DEFAULT_SPEC
  46 #define LINK_START_DEFAULT_SPEC "%(link_start_linux)"
  47
  48 #undef  LINK_OS_DEFAULT_SPEC
  49 #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"
  50
  51 #undef TARGET_VERSION
  52 #define TARGET_VERSION fprintf (stderr, " (PowerPC GNU/Linux)");
  53
  54 /* Define this macro as a C expression for the initializer of an
  55    array of string to tell the driver program which options are
  56    defaults for this target and thus do not need to be handled
  57    specially when using `MULTILIB_OPTIONS'.
  58
  59    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
  60    the target makefile fragment or if none of the options listed in
  61    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
  62
  63 #undef  MULTILIB_DEFAULTS
  64 #define MULTILIB_DEFAULTS { "mbig", "mcall-linux" }
  65
  66 #undef DEFAULT_VTABLE_THUNKS
  67 #define DEFAULT_VTABLE_THUNKS 1