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 ${host} in
  98   i[34567]86-*-* \
  99   | x86_64-*-* )
 100     # include the support for -march=native only when not cross compiling
 101     if test x${host} = x${target} ; then
 102       host_extra_gcc_objs="driver-i386.o"
 103       host_xmake_file="${host_xmake_file} i386/x-i386"
 104     fi
 105     ;;
 106 esac
 107
 108 # Machine-specific settings.
 109 case ${host} in
 110   alpha*-dec-*vms*)
 111     host_xm_file=alpha/xm-vms.h
 112     host_xmake_file="${host_xmake_file} alpha/x-vms"
 113     host_exeext=.exe
 114     host_can_use_collect2=no
 115     # This removes the cpu type and manufacturer components and
 116     #  replaces "." with "_" in the operating system version.
 117     target_noncanonical=`echo $host | sed 's/.*-.*-\(.*\)$/\1/' | sed 's/\./_/g'`
 118     prefix=/gnu
 119     local_prefix=/gnu
 120     ;;
 121   hppa1.1-*-pro*)
 122     host_xmake_file="${host_xmake_file} pa/x-ada"
 123     ;;
 124   hppa1.1-*-osf*)
 125     host_xmake_file="${host_xmake_file} pa/x-ada"
 126     ;;
 127   hppa1.1-*-rtems*)
 128     host_xmake_file="${host_xmake_file} pa/x-ada"
 129     ;;
 130   hppa1.1-*-bsd*)
 131     host_xmake_file="${host_xmake_file} pa/x-ada"
 132     ;;
 133   hppa1.0-*-hpux10* | hppa1.1-*-hpux10* | hppa2*-*-hpux10*)
 134     out_host_hook_obj=host-hpux.o
 135     host_xmake_file="${host_xmake_file} pa/x-ada-hpux10 x-hpux"
 136     ;;
 137   hppa1.0-*-hpux11* | hppa1.1-*-hpux11* | hppa2*-*-hpux11* | \
 138   hppa*64*-*-hpux11*)
 139     out_host_hook_obj=host-hpux.o
 140     host_xmake_file="${host_xmake_file} pa/x-ada x-hpux"
 141     ;;
 142   hppa*-*-linux*)
 143     out_host_hook_obj=host-hpux.o
 144     host_xmake_file="${host_xmake_file} x-hpux"
 145     ;;
 146   i370-*-opened* | i370-*-mvs* ) # IBM 360/370/390 Architecture
 147     host_xm_defines='FATAL_EXIT_CODE=12'
 148     ;;
 149   i[34567]86-*-solaris2*)
 150     out_host_hook_obj=host-solaris.o
 151     host_xmake_file="${host_xmake_file} x-solaris"
 152     ;;
 153   i[34567]86-pc-msdosdjgpp*)
 154     host_xm_file=i386/xm-djgpp.h
 155     host_exeext=.exe
 156     # Shorten $target_noncanonical for 8.3 filename conventions.
 157     case ${target} in
 158       *pc-msdosdjgpp*)
 159         target_noncanonical=djgpp
 160         ;;
 161     esac
 162     ;;
 163   i[34567]86-*-pe | i[34567]86-*-cygwin*)
 164     host_xm_file=i386/xm-cygwin.h
 165     out_host_hook_obj=host-cygwin.o
 166     host_xmake_file="${host_xmake_file} i386/x-cygwin"
 167     host_exeext=.exe
 168     ;;
 169   i[34567]86-*-mingw32*)
 170     host_xm_file=i386/xm-mingw32.h
 171     host_xmake_file="${host_xmake_file} i386/x-mingw32"
 172     host_exeext=.exe
 173     out_host_hook_obj=host-mingw32.o
 174     ;;
 175   i[34567]86-*-uwin*)
 176     echo "*** UWIN may not be used as a host platform because"
 177     echo "*** linking with posix.dll is not allowed by the GNU GPL."
 178     exit 1
 179     ;;
 180   i[34567]86-*-interix3*)
 181     host_xmake_file="${host_xmake_file} x-interix"
 182     ;;
 183   i[34567]86-*-darwin*)
 184     out_host_hook_obj="${out_host_hook_obj} host-i386-darwin.o"
 185     host_xmake_file="${host_xmake_file} i386/x-darwin"
 186     ;;
 187   powerpc-*-beos*)
 188     host_can_use_collect2=no
 189     ;;
 190   powerpc-*-darwin*)
 191     out_host_hook_obj="${out_host_hook_obj} host-ppc-darwin.o"
 192     host_xmake_file="${host_xmake_file} rs6000/x-darwin"
 193     ;;
 194   *-*-solaris2*)
 195     out_host_hook_obj=host-solaris.o
 196     host_xmake_file="${host_xmake_file} x-solaris"
 197     ;;
 198   *-*-linux*)
 199     out_host_hook_obj=host-linux.o
 200     host_xmake_file="${host_xmake_file} x-linux"
 201     ;;
 202   ia64-*-hpux*)
 203     use_long_long_for_widest_fast_int=yes
 204     out_host_hook_obj=host-hpux.o
 205     host_xmake_file="${host_xmake_file} x-hpux"
 206     ;;
 207 esac