gcc/config.host

   1 # GCC host-specific configuration file.
   2 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2006
   3 # Free Software Foundation, Inc.
   4
   5 #This file is part of GCC.
   6
   7 #GCC is free software; you can redistribute it and/or modify it under
   8 #the terms of the GNU General Public License as published by the Free
   9 #Software Foundation; either version 2, or (at your option) any later
  10 #version.
  11
  12 #GCC is distributed in the hope that it will be useful, but WITHOUT
  13 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 #FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 #for more details.
  16
  17 #You should have received a copy of the GNU General Public License
  18 #along with GCC; see the file COPYING.  If not, write to the Free
  19 #Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
  20 #02110-1301, USA.
  21
  22 # This is the GCC host-specific configuration file
  23 # where a configuration type is mapped to different system-specific
  24 # definitions and files.  This is invoked by the autoconf-generated
  25 # configure script.  Putting it in a separate shell file lets us skip
  26 # running autoconf when modifying host-specific information.
  27
  28 # This file switches on the shell variable ${host}.  As much of this as
  29 # is reasonable should be replaced with autoconf tests in the future.
  30
  31 # This file sets the following shell variables for use by the
  32 # autoconf-generated configure script:
  33 #
  34 #  host_xm_file         List of files to include when compiling for the
  35 #                       host machine.
  36 #
  37 #  host_xm_defines      List of macros to define when compiling for the
  38 #                       host machine.
  39 #
  40 #  host_xmake_file      List of host-specific makefile-fragments.
  41 #
  42 #  host_exeext          Set to the suffix, if the host machine requires
  43 #                       executables to have a file name suffix.
  44 #
  45 #  host_extra_objs      List of extra host-dependent objects that should
  46 #                       be linked into the compiler proper.
  47 #
  48 #  host_extra_gcc_objs  List of extra host-dependent objects that should
  49 #                       be linked into the gcc driver.
  50 #
  51 #  out_host_hook_obj    An object file that provides the host hooks.
  52 #
  53 #  host_can_use_collect2 Set to yes normally; to no if the host cannot
  54 #                       link or otherwise use collect2
  55 #  use_long_long_for_widest_fast_int Set this to 'yes' if 'long long'
  56 #                       (or '__int64') is wider than 'long' but still
  57 #                       efficeiently supported by the host hardware.
  58 #                       Only affects compile speed.  Default is 'no'.
  59
  60 # When setting any of these variables, check to see if a corresponding
  61 # variable is present in config.build; if so, you will likely want to
  62 # set it in both places.
  63
  64 # Default settings.
  65 host_xm_file=
  66 host_xm_defines=
  67 host_xmake_file=
  68 host_exeext=
  69 host_extra_objs=
  70 host_extra_gcc_objs=
  71 out_host_hook_obj=host-default.o
  72 host_can_use_collect2=yes
  73 use_long_long_for_widest_fast_int=no
  74
  75 # Unsupported hosts list.  Generally, only include hosts known to fail here,
  76 # since we allow hosts not listed to be supported generically.
  77 case ${host} in
  78    i[34567]86-sequent-sysv \
  79  | i[34567]86-sequent-sysv[123]* \
  80  | i[34567]86-go32-* \
  81  | i[34567]86-*-go32* \
  82  | vax-*-vms*)
  83     echo "*** Configuration for host ${host} not supported" 1>&2
  84     exit 1
  85     ;;
  86 esac
  87
  88 # Common parts for widely ported systems.
  89 case ${host} in
  90   *-darwin*)
  91     # Generic darwin host support.
  92     out_host_hook_obj=host-darwin.o
  93     host_xmake_file="${host_xmake_file} x-darwin"
  94     ;;
  95 esac
  96
  97 case ${host} in
  98   i[34567]86-*-* \
  99   | x86_64-*-* )
 100     case ${target} in
 101       i[34567]86-*-* \
 102       | x86_64-*-* )
 103         host_extra_gcc_objs="driver-i386.o"
 104         host_xmake_file="${host_xmake_file} i386/x-i386"
 105         ;;
 106     esac
 107     ;;
 108 esac
 109
 110 # Machine-specific settings.
 111 case ${host} in
 112   alpha*-dec-*vms*)
 113     host_xm_file=alpha/xm-vms.h
 114     host_xmake_file="${host_xmake_file} alpha/x-vms"
 115     host_exeext=.exe
 116     host_can_use_collect2=no
 117     # This removes the cpu type and manufacturer components and
 118     #  replaces "." with "_" in the operating system version.
 119     target_noncanonical=`echo $host | sed 's/.*-.*-\(.*\)$/\1/' | sed 's/\./_/g'`
 120     prefix=/gnu
 121     local_prefix=/gnu
 122     ;;
 123   hppa1.1-*-pro*)
 124     host_xmake_file="${host_xmake_file} pa/x-ada"
 125     ;;
 126   hppa1.1-*-osf*)
 127     host_xmake_file="${host_xmake_file} pa/x-ada"
 128     ;;
 129   hppa1.1-*-rtems*)
 130     host_xmake_file="${host_xmake_file} pa/x-ada"
 131     ;;
 132   hppa1.1-*-bsd*)
 133     host_xmake_file="${host_xmake_file} pa/x-ada"
 134     ;;
 135   hppa1.0-*-hpux10* | hppa1.1-*-hpux10* | hppa2*-*-hpux10*)
 136     out_host_hook_obj=host-hpux.o
 137     host_xmake_file="${host_xmake_file} pa/x-ada-hpux10 x-hpux"
 138     ;;
 139   hppa1.0-*-hpux11* | hppa1.1-*-hpux11* | hppa2*-*-hpux11* | \
 140   hppa*64*-*-hpux11*)
 141     out_host_hook_obj=host-hpux.o
 142     host_xmake_file="${host_xmake_file} pa/x-ada x-hpux"
 143     ;;
 144   hppa*-*-linux*)
 145     out_host_hook_obj=host-hpux.o
 146     host_xmake_file="${host_xmake_file} x-hpux"
 147     ;;
 148   i370-*-opened* | i370-*-mvs* ) # IBM 360/370/390 Architecture
 149     host_xm_defines='FATAL_EXIT_CODE=12'
 150     ;;
 151   i[34567]86-*-solaris2*)
 152     out_host_hook_obj=host-solaris.o
 153     host_xmake_file="${host_xmake_file} x-solaris"
 154     ;;
 155   i[34567]86-pc-msdosdjgpp*)
 156     host_xm_file=i386/xm-djgpp.h
 157     host_exeext=.exe
 158     # Shorten $target_noncanonical for 8.3 filename conventions.
 159     case ${target} in
 160       *pc-msdosdjgpp*)
 161         target_noncanonical=djgpp
 162         ;;
 163     esac
 164     ;;
 165   i[34567]86-*-pe | i[34567]86-*-cygwin*)
 166     host_xm_file=i386/xm-cygwin.h
 167     out_host_hook_obj=host-cygwin.o
 168     host_xmake_file="${host_xmake_file} i386/x-cygwin"
 169     host_exeext=.exe
 170     ;;
 171   i[34567]86-*-mingw32* | x86_64-*-mingw*)
 172     host_xm_file=i386/xm-mingw32.h
 173     host_xmake_file="${host_xmake_file} i386/x-mingw32"
 174     host_exeext=.exe
 175     out_host_hook_obj=host-mingw32.o
 176     ;;
 177   i[34567]86-*-uwin*)
 178     echo "*** UWIN may not be used as a host platform because"
 179     echo "*** linking with posix.dll is not allowed by the GNU GPL."
 180     exit 1
 181     ;;
 182   i[34567]86-*-interix3*)
 183     host_xmake_file="${host_xmake_file} x-interix"
 184     ;;
 185   i[34567]86-*-darwin* | x86_64-*-darwin*)
 186     out_host_hook_obj="${out_host_hook_obj} host-i386-darwin.o"
 187     host_xmake_file="${host_xmake_file} i386/x-darwin"
 188     ;;
 189   powerpc-*-beos*)
 190     host_can_use_collect2=no
 191     ;;
 192   powerpc-*-darwin*)
 193     out_host_hook_obj="${out_host_hook_obj} host-ppc-darwin.o"
 194     host_xmake_file="${host_xmake_file} rs6000/x-darwin"
 195     ;;
 196   powerpc64-*-darwin*)
 197     out_host_hook_obj="${out_host_hook_obj} host-ppc64-darwin.o"
 198     host_xmake_file="${host_xmake_file} rs6000/x-darwin64"
 199     ;;
 200   *-*-solaris2*)
 201     out_host_hook_obj=host-solaris.o
 202     host_xmake_file="${host_xmake_file} x-solaris"
 203     ;;
 204   *-*-linux*)
 205     out_host_hook_obj=host-linux.o
 206     host_xmake_file="${host_xmake_file} x-linux"
 207     ;;
 208   ia64-*-hpux*)
 209     use_long_long_for_widest_fast_int=yes
 210     out_host_hook_obj=host-hpux.o
 211     host_xmake_file="${host_xmake_file} x-hpux"
 212     ;;
 213 esac