gcc/config.host

   1 # GCC host-specific configuration file.
   2 # Copyright (C) 1997-2015 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   aarch64*-*-linux*)
 103     case ${target} in
 104       aarch64*-*-*)
 105         host_extra_gcc_objs="driver-aarch64.o"
 106         host_xmake_file="${host_xmake_file} aarch64/x-aarch64"
 107         ;;
 108     esac
 109     ;;
 110   arm*-*-freebsd* | arm*-*-linux*)
 111     case ${target} in
 112       arm*-*-*)
 113         host_extra_gcc_objs="driver-arm.o"
 114         host_xmake_file="${host_xmake_file} arm/x-arm"
 115         ;;
 116     esac
 117     ;;
 118   alpha*-*-linux*)
 119     case ${target} in
 120       alpha*-*-linux*)
 121         host_extra_gcc_objs="driver-alpha.o"
 122         host_xmake_file="${host_xmake_file} alpha/x-alpha"
 123         ;;
 124     esac
 125     ;;
 126   i[34567]86-*-* \
 127   | x86_64-*-* )
 128     case ${target} in
 129       i[34567]86-*-* \
 130       | x86_64-*-* )
 131         host_extra_gcc_objs="driver-i386.o"
 132         host_xmake_file="${host_xmake_file} i386/x-i386"
 133         ;;
 134     esac
 135     ;;
 136   mips*-*-linux*)
 137     case ${target} in
 138       mips*-*-linux*)
 139         host_extra_gcc_objs="driver-native.o"
 140         host_xmake_file="${host_xmake_file} mips/x-native"
 141       ;;
 142     esac
 143     ;;
 144   rs6000-*-* \
 145   | powerpc*-*-* )
 146     case ${target} in
 147       rs6000-*-* \
 148       | powerpc*-*-* )
 149         host_extra_gcc_objs="driver-rs6000.o"
 150         host_xmake_file="${host_xmake_file} rs6000/x-rs6000"
 151         ;;
 152     esac
 153     case ${host} in
 154       *-*-linux* | *-*-freebsd*)
 155         if test "${GCC}:${ac_cv_sizeof_long}" = yes:4; then
 156           # On powerpc*-*-linux* use -Wl,--relax to link cc1,
 157           # if ld is new enough, otherwise force -O1 in CFLAGS.
 158           host_ppc_relax_xmake_file=
 159           host_ld_ver=`${CC} -Wl,--version 2>/dev/null | sed 1q`
 160           if echo "$host_ld_ver" | grep GNU > /dev/null; then
 161             host_ld_date=`echo $host_ld_ver \
 162                           | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
 163             if test 0"$host_ld_date" -gt 20080806; then
 164               host_ppc_relax_xmake_file=rs6000/x-linux-relax
 165             fi
 166           fi
 167           if test -z "${host_ppc_relax_xmake_file}"; then
 168             host_ppc_relax_xmake_file=x-cflags-O1
 169           fi
 170           host_xmake_file="${host_xmake_file} ${host_ppc_relax_xmake_file}"
 171         fi
 172         ;;
 173     esac
 174     ;;
 175   s390-*-* | s390x-*-*)
 176     host_extra_gcc_objs="driver-native.o"
 177     host_xmake_file="${host_xmake_file} s390/x-native"
 178     ;;
 179   sparc*-*-solaris2*)
 180     case ${target} in
 181       sparc*-*-solaris2*)
 182         host_extra_gcc_objs="driver-sparc.o"
 183         host_xmake_file="${host_xmake_file} sparc/x-sparc"
 184         ;;
 185     esac
 186     ;;
 187   sparc*-*-linux*)
 188     case ${target} in
 189       sparc*-*-linux*)
 190         host_extra_gcc_objs="driver-sparc.o"
 191         host_xmake_file="${host_xmake_file} sparc/x-sparc"
 192         ;;
 193     esac
 194     ;;
 195 esac
 196
 197 # Machine-specific settings.
 198 case ${host} in
 199   hppa1.0-*-hpux10* | hppa1.1-*-hpux10* | hppa2*-*-hpux10*)
 200     out_host_hook_obj=host-hpux.o
 201     host_xmake_file="${host_xmake_file} x-hpux"
 202     ;;
 203   hppa1.0-*-hpux11* | hppa1.1-*-hpux11* | hppa2*-*-hpux11* | \
 204   hppa*64*-*-hpux11*)
 205     out_host_hook_obj=host-hpux.o
 206     host_xmake_file="${host_xmake_file} x-hpux"
 207     ;;
 208   hppa*-*-linux*)
 209     out_host_hook_obj=host-hpux.o
 210     host_xmake_file="${host_xmake_file} x-hpux"
 211     ;;
 212   i370-*-opened* | i370-*-mvs* ) # IBM 360/370/390 Architecture
 213     host_xm_defines='FATAL_EXIT_CODE=12'
 214     ;;
 215   i[34567]86-*-solaris2* | x86_64-*-solaris2.1[0-9]*)
 216     out_host_hook_obj=host-solaris.o
 217     host_xmake_file="${host_xmake_file} x-solaris"
 218     ;;
 219   i[34567]86-pc-msdosdjgpp*)
 220     host_xm_file=i386/xm-djgpp.h
 221     host_exeext=.exe
 222     # Shorten $target_noncanonical for 8.3 filename conventions.
 223     case ${target} in
 224       *pc-msdosdjgpp*)
 225         target_noncanonical=djgpp
 226         ;;
 227     esac
 228     ;;
 229   i[34567]86-*-cygwin* | x86_64-*-cygwin*)
 230     host_xm_file=i386/xm-cygwin.h
 231     out_host_hook_obj=host-cygwin.o
 232     host_xmake_file="${host_xmake_file} i386/x-cygwin"
 233     host_exeext=.exe
 234     host_lto_plugin_soname=cyglto_plugin-0.dll
 235     ;;
 236   i[34567]86-*-mingw32*)
 237     host_xm_file=i386/xm-mingw32.h
 238     host_xmake_file="${host_xmake_file} i386/x-mingw32"
 239     host_exeext=.exe
 240     out_host_hook_obj=host-mingw32.o
 241     host_lto_plugin_soname=liblto_plugin-0.dll
 242     ;;
 243   x86_64-*-mingw*)
 244     use_long_long_for_widest_fast_int=yes
 245     host_xm_file=i386/xm-mingw32.h
 246     host_xmake_file="${host_xmake_file} i386/x-mingw32"
 247     host_exeext=.exe
 248     out_host_hook_obj=host-mingw32.o
 249     host_lto_plugin_soname=liblto_plugin-0.dll
 250     ;;
 251   i[34567]86-*-uwin*)
 252     echo "*** UWIN may not be used as a host platform because"
 253     echo "*** linking with posix.dll is not allowed by the GNU GPL."
 254     exit 1
 255     ;;
 256   i[34567]86-*-darwin* | x86_64-*-darwin*)
 257     out_host_hook_obj="${out_host_hook_obj} host-i386-darwin.o"
 258     host_xmake_file="${host_xmake_file} i386/x-darwin"
 259     ;;
 260   powerpc-*-beos*)
 261     host_can_use_collect2=no
 262     ;;
 263   powerpc-*-darwin*)
 264     out_host_hook_obj="${out_host_hook_obj} host-ppc-darwin.o"
 265     host_xmake_file="${host_xmake_file} rs6000/x-darwin"
 266     ;;
 267   powerpc64-*-darwin*)
 268     out_host_hook_obj="${out_host_hook_obj} host-ppc64-darwin.o"
 269     host_xmake_file="${host_xmake_file} rs6000/x-darwin64"
 270     ;;
 271   rs6000-ibm-aix* | powerpc-ibm-aix*)
 272     host_xmake_file="${host_xmake_file} rs6000/x-aix"
 273     ;;
 274   *-*-solaris2*)
 275     out_host_hook_obj=host-solaris.o
 276     host_xmake_file="${host_xmake_file} x-solaris"
 277     ;;
 278   *-*-linux*)
 279     out_host_hook_obj=host-linux.o
 280     host_xmake_file="${host_xmake_file} x-linux"
 281     ;;
 282   *-*-openbsd*)
 283     out_host_hook_obj=host-openbsd.o
 284     host_xmake_file="${host_xmake_file} x-openbsd"
 285     ;;
 286   ia64-*-hpux*)
 287     use_long_long_for_widest_fast_int=yes
 288     out_host_hook_obj=host-hpux.o
 289     host_xmake_file="${host_xmake_file} x-hpux"
 290     ;;
 291   *-*-*vms*)
 292     host_xm_file="vms/xm-vms.h"
 293     host_xmake_file=vms/x-vms
 294     host_exeext=.exe
 295     host_can_use_collect2=no
 296     ;;
 297 esac