gcc/config.host

   1 # GCC host-specific configuration file.
   2 # Copyright (C) 1997-2013 Free Software Foundation, Inc.
   3
   4 #This file is part of GCC.
   5
   6 #GCC is free software; you can redistribute it and/or modify it under
   7 #the terms of the GNU General Public License as published by the Free
   8 #Software Foundation; either version 3, or (at your option) any later
   9 #version.
  10
  11 #GCC is distributed in the hope that it will be useful, but WITHOUT
  12 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 #FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 #for more details.
  15
  16 #You should have received a copy of the GNU General Public License
  17 #along with GCC; see the file COPYING3.  If not see
  18 #<http://www.gnu.org/licenses/>.
  19
  20 # This is the GCC host-specific configuration file
  21 # where a configuration type is mapped to different system-specific
  22 # definitions and files.  This is invoked by the autoconf-generated
  23 # configure script.  Putting it in a separate shell file lets us skip
  24 # running autoconf when modifying host-specific information.
  25
  26 # This file switches on the shell variable ${host}.  As much of this as
  27 # is reasonable should be replaced with autoconf tests in the future.
  28
  29 # This file sets the following shell variables for use by the
  30 # autoconf-generated configure script:
  31 #
  32 #  host_xm_file         List of files to include when compiling for the
  33 #                       host machine.
  34 #
  35 #  host_xm_defines      List of macros to define when compiling for the
  36 #                       host machine.
  37 #
  38 #  host_xmake_file      List of host-specific makefile-fragments.
  39 #
  40 #  host_exeext          Set to the suffix, if the host machine requires
  41 #                       executables to have a file name suffix.
  42 #
  43 #  host_extra_objs      List of extra host-dependent objects that should
  44 #                       be linked into the compiler proper.
  45 #
  46 #  host_extra_gcc_objs  List of extra host-dependent objects that should
  47 #                       be linked into the gcc driver.
  48 #
  49 #  out_host_hook_obj    An object file that provides the host hooks.
  50 #
  51 #  host_can_use_collect2 Set to yes normally; to no if the host cannot
  52 #                       link or otherwise use collect2
  53 #
  54 #  use_long_long_for_widest_fast_int Set this to 'yes' if 'long long'
  55 #                       (or '__int64') is wider than 'long' but still
  56 #                       efficeiently supported by the host hardware.
  57 #                       Only affects compile speed.  Default is 'no'.
  58 #
  59 #  host_lto_plugin_soname Set this to the name to which the LTO linker
  60 #                       plugin gets compiled on this host, if it is
  61 #                       different from the default "liblto_plugin.so".
  62
  63 # When setting any of these variables, check to see if a corresponding
  64 # variable is present in config.build; if so, you will likely want to
  65 # set it in both places.
  66
  67 # Default settings.
  68 host_xm_file=
  69 host_xm_defines=
  70 host_xmake_file=
  71 host_exeext=
  72 host_extra_objs=
  73 host_extra_gcc_objs=
  74 out_host_hook_obj=host-default.o
  75 host_can_use_collect2=yes
  76 use_long_long_for_widest_fast_int=no
  77 host_lto_plugin_soname=liblto_plugin.so
  78
  79 # Unsupported hosts list.  Generally, only include hosts known to fail here,
  80 # since we allow hosts not listed to be supported generically.
  81 case ${host} in
  82    i[34567]86-sequent-sysv \
  83  | i[34567]86-sequent-sysv[123]* \
  84  | i[34567]86-go32-* \
  85  | i[34567]86-*-go32* \
  86  | vax-*-vms*)
  87     echo "*** Configuration for host ${host} not supported" 1>&2
  88     exit 1
  89     ;;
  90 esac
  91
  92 # Common parts for widely ported systems.
  93 case ${host} in
  94   *-darwin*)
  95     # Generic darwin host support.
  96     out_host_hook_obj=host-darwin.o
  97     host_xmake_file="${host_xmake_file} x-darwin"
  98     ;;
  99 esac
 100
 101 case ${host} in
 102   arm*-*-linux*)
 103     case ${target} in
 104       arm*-*-*)
 105         host_extra_gcc_objs="driver-arm.o"
 106         host_xmake_file="${host_xmake_file} arm/x-arm"
 107         ;;
 108     esac
 109     ;;
 110   alpha*-*-linux*)
 111     case ${target} in
 112       alpha*-*-linux*)
 113         host_extra_gcc_objs="driver-alpha.o"
 114         host_xmake_file="${host_xmake_file} alpha/x-alpha"
 115         ;;
 116     esac
 117     ;;
 118   i[34567]86-*-* \
 119   | x86_64-*-* )
 120     case ${target} in
 121       i[34567]86-*-* \
 122       | x86_64-*-* )
 123         host_extra_gcc_objs="driver-i386.o"
 124         host_xmake_file="${host_xmake_file} i386/x-i386"
 125         ;;
 126     esac
 127     ;;
 128   mips*-*-linux*)
 129     case ${target} in
 130       mips*-*-linux*)
 131         host_extra_gcc_objs="driver-native.o"
 132         host_xmake_file="${host_xmake_file} mips/x-native"
 133       ;;
 134     esac
 135     ;;
 136   rs6000-*-* \
 137   | powerpc*-*-* )
 138     case ${target} in
 139       rs6000-*-* \
 140       | powerpc*-*-* )
 141         host_extra_gcc_objs="driver-rs6000.o"
 142         host_xmake_file="${host_xmake_file} rs6000/x-rs6000"
 143         ;;
 144     esac
 145     case ${host} in
 146       *-*-linux* | *-*-freebsd*)
 147         if test "${GCC}:${ac_cv_sizeof_long}" = yes:4; then
 148           # On powerpc*-*-linux* use -Wl,--relax to link cc1,
 149           # if ld is new enough, otherwise force -O1 in CFLAGS.
 150           host_ppc_relax_xmake_file=
 151           host_ld_ver=`${CC} -Wl,--version 2>/dev/null | sed 1q`
 152           if echo "$host_ld_ver" | grep GNU > /dev/null; then
 153             host_ld_date=`echo $host_ld_ver \
 154                           | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
 155             if test 0"$host_ld_date" -gt 20080806; then
 156               host_ppc_relax_xmake_file=rs6000/x-linux-relax
 157             fi
 158           fi
 159           if test -z "${host_ppc_relax_xmake_file}"; then
 160             host_ppc_relax_xmake_file=x-cflags-O1
 161           fi
 162           host_xmake_file="${host_xmake_file} ${host_ppc_relax_xmake_file}"
 163         fi
 164         ;;
 165     esac
 166     ;;
 167   sparc*-*-solaris2*)
 168     case ${target} in
 169       sparc*-*-solaris2*)
 170         host_extra_gcc_objs="driver-sparc.o"
 171         host_xmake_file="${host_xmake_file} sparc/x-sparc"
 172         ;;
 173     esac
 174     ;;
 175   sparc*-*-linux*)
 176     case ${target} in
 177       sparc*-*-linux*)
 178         host_extra_gcc_objs="driver-sparc.o"
 179         host_xmake_file="${host_xmake_file} sparc/x-sparc"
 180         ;;
 181     esac
 182     ;;
 183 esac
 184
 185 # Machine-specific settings.
 186 case ${host} in
 187   hppa1.0-*-hpux10* | hppa1.1-*-hpux10* | hppa2*-*-hpux10*)
 188     out_host_hook_obj=host-hpux.o
 189     host_xmake_file="${host_xmake_file} x-hpux"
 190     ;;
 191   hppa1.0-*-hpux11* | hppa1.1-*-hpux11* | hppa2*-*-hpux11* | \
 192   hppa*64*-*-hpux11*)
 193     out_host_hook_obj=host-hpux.o
 194     host_xmake_file="${host_xmake_file} x-hpux"
 195     ;;
 196   hppa*-*-linux*)
 197     out_host_hook_obj=host-hpux.o
 198     host_xmake_file="${host_xmake_file} x-hpux"
 199     ;;
 200   i370-*-opened* | i370-*-mvs* ) # IBM 360/370/390 Architecture
 201     host_xm_defines='FATAL_EXIT_CODE=12'
 202     ;;
 203   i[34567]86-*-solaris2* | x86_64-*-solaris2.1[0-9]*)
 204     out_host_hook_obj=host-solaris.o
 205     host_xmake_file="${host_xmake_file} x-solaris"
 206     ;;
 207   i[34567]86-pc-msdosdjgpp*)
 208     host_xm_file=i386/xm-djgpp.h
 209     host_exeext=.exe
 210     # Shorten $target_noncanonical for 8.3 filename conventions.
 211     case ${target} in
 212       *pc-msdosdjgpp*)
 213         target_noncanonical=djgpp
 214         ;;
 215     esac
 216     ;;
 217   i[34567]86-*-cygwin* | x86_64-*-cygwin*)
 218     host_xm_file=i386/xm-cygwin.h
 219     out_host_hook_obj=host-cygwin.o
 220     host_xmake_file="${host_xmake_file} i386/x-cygwin"
 221     host_exeext=.exe
 222     host_lto_plugin_soname=cyglto_plugin-0.dll
 223     ;;
 224   i[34567]86-*-mingw32*)
 225     host_xm_file=i386/xm-mingw32.h
 226     host_xmake_file="${host_xmake_file} i386/x-mingw32"
 227     host_exeext=.exe
 228     out_host_hook_obj=host-mingw32.o
 229     host_lto_plugin_soname=liblto_plugin-0.dll
 230     ;;
 231   x86_64-*-mingw*)
 232     use_long_long_for_widest_fast_int=yes
 233     host_xm_file=i386/xm-mingw32.h
 234     host_xmake_file="${host_xmake_file} i386/x-mingw32"
 235     host_exeext=.exe
 236     out_host_hook_obj=host-mingw32.o
 237     host_lto_plugin_soname=liblto_plugin-0.dll
 238     ;;
 239   i[34567]86-*-uwin*)
 240     echo "*** UWIN may not be used as a host platform because"
 241     echo "*** linking with posix.dll is not allowed by the GNU GPL."
 242     exit 1
 243     ;;
 244   i[34567]86-*-darwin* | x86_64-*-darwin*)
 245     out_host_hook_obj="${out_host_hook_obj} host-i386-darwin.o"
 246     host_xmake_file="${host_xmake_file} i386/x-darwin"
 247     ;;
 248   powerpc-*-beos*)
 249     host_can_use_collect2=no
 250     ;;
 251   powerpc-*-darwin*)
 252     out_host_hook_obj="${out_host_hook_obj} host-ppc-darwin.o"
 253     host_xmake_file="${host_xmake_file} rs6000/x-darwin"
 254     ;;
 255   powerpc64-*-darwin*)
 256     out_host_hook_obj="${out_host_hook_obj} host-ppc64-darwin.o"
 257     host_xmake_file="${host_xmake_file} rs6000/x-darwin64"
 258     ;;
 259   rs6000-ibm-aix* | powerpc-ibm-aix*)
 260     host_xmake_file="${host_xmake_file} rs6000/x-aix"
 261     ;;
 262   *-*-solaris2*)
 263     out_host_hook_obj=host-solaris.o
 264     host_xmake_file="${host_xmake_file} x-solaris"
 265     ;;
 266   *-*-linux*)
 267     out_host_hook_obj=host-linux.o
 268     host_xmake_file="${host_xmake_file} x-linux"
 269     ;;
 270   *-*-openbsd*)
 271     out_host_hook_obj=host-openbsd.o
 272     host_xmake_file="${host_xmake_file} x-openbsd"
 273     ;;
 274   ia64-*-hpux*)
 275     use_long_long_for_widest_fast_int=yes
 276     out_host_hook_obj=host-hpux.o
 277     host_xmake_file="${host_xmake_file} x-hpux"
 278     ;;
 279   *-*-*vms*)
 280     host_xm_file="vms/xm-vms.h"
 281     host_xmake_file=vms/x-vms
 282     host_exeext=.exe
 283     host_can_use_collect2=no
 284     ;;
 285 esac