gcc/config.host

   1 # GCC host-specific configuration file.
   2 # Copyright (C) 1997-2024 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*-*-freebsd* | aarch64*-*-linux* | aarch64*-*-fuchsia* |\
 103   aarch64*-*-darwin*)
 104     case ${target} in
 105       aarch64*-*-*)
 106         host_extra_gcc_objs="driver-aarch64.o"
 107         host_xmake_file="${host_xmake_file} aarch64/x-aarch64"
 108         ;;
 109     esac
 110     ;;
 111   arm*-*-freebsd* | arm*-*-netbsd* | arm*-*-linux* | arm*-*-fuchsia*)
 112     case ${target} in
 113       arm*-*-*)
 114         host_extra_gcc_objs="driver-arm.o"
 115         host_xmake_file="${host_xmake_file} arm/x-arm"
 116         ;;
 117     esac
 118     ;;
 119   alpha*-*-linux*)
 120     case ${target} in
 121       alpha*-*-linux*)
 122         host_extra_gcc_objs="driver-alpha.o"
 123         host_xmake_file="${host_xmake_file} alpha/x-alpha"
 124         ;;
 125     esac
 126     ;;
 127   i[34567]86-*-* \
 128   | x86_64-*-* )
 129     case ${target} in
 130       i[34567]86-*-* \
 131       | x86_64-*-* )
 132         host_extra_gcc_objs="driver-i386.o"
 133         host_xmake_file="${host_xmake_file} i386/x-i386"
 134         ;;
 135     esac
 136     ;;
 137   mips*-*-linux*)
 138     case ${target} in
 139       mips*-*-linux*)
 140         host_extra_gcc_objs="driver-native.o"
 141         host_xmake_file="${host_xmake_file} mips/x-native"
 142       ;;
 143     esac
 144     ;;
 145   rs6000-*-* \
 146   | powerpc*-*-* )
 147     case ${target} in
 148       rs6000-*-* \
 149       | powerpc*-*-* )
 150         host_extra_gcc_objs="driver-rs6000.o"
 151         host_xmake_file="${host_xmake_file} rs6000/x-rs6000"
 152         ;;
 153     esac
 154     case ${host} in
 155       *-*-linux* | *-*-freebsd*)
 156         if test "${GCC}:${ac_cv_sizeof_long}" = yes:4; then
 157           # On powerpc*-*-linux* use -Wl,--relax to link cc1,
 158           # if ld is new enough, otherwise force -O1 in CFLAGS.
 159           host_ppc_relax_xmake_file=
 160           host_ld_ver=`${CC} -Wl,--version 2>/dev/null | sed 1q`
 161           if echo "$host_ld_ver" | grep GNU > /dev/null; then
 162             host_ld_date=`echo $host_ld_ver \
 163                           | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
 164             if test 0"$host_ld_date" -gt 20080806; then
 165               host_ppc_relax_xmake_file=rs6000/x-linux-relax
 166             fi
 167           fi
 168           if test -z "${host_ppc_relax_xmake_file}"; then
 169             host_ppc_relax_xmake_file=x-cflags-O1
 170           fi
 171           host_xmake_file="${host_xmake_file} ${host_ppc_relax_xmake_file}"
 172         fi
 173         ;;
 174     esac
 175     ;;
 176   s390-*-* | s390x-*-*)
 177     case ${target} in
 178       s390-*-* | s390x-*-*)
 179         host_extra_gcc_objs="driver-native.o"
 180         host_xmake_file="${host_xmake_file} s390/x-native"
 181         ;;
 182     esac
 183     ;;
 184   sparc*-*-solaris2*)
 185     case ${target} in
 186       sparc*-*-solaris2*)
 187         host_extra_gcc_objs="driver-sparc.o"
 188         host_xmake_file="${host_xmake_file} sparc/x-sparc"
 189         ;;
 190     esac
 191     ;;
 192   sparc*-*-linux*)
 193     case ${target} in
 194       sparc*-*-linux*)
 195         host_extra_gcc_objs="driver-sparc.o"
 196         host_xmake_file="${host_xmake_file} sparc/x-sparc"
 197         ;;
 198     esac
 199     ;;
 200 esac
 201
 202 # Machine-specific settings.
 203 case ${host} in
 204   hppa*64*-*-hpux11*)
 205     out_host_hook_obj=host-hpux.o
 206     host_xmake_file="${host_xmake_file} x-hpux"
 207     ;;
 208   hppa*-*-linux*)
 209     out_host_hook_obj=host-hpux.o
 210     host_xmake_file="${host_xmake_file} x-hpux"
 211     ;;
 212   i[34567]86-*-solaris2* | x86_64-*-solaris2*)
 213     out_host_hook_obj=host-solaris.o
 214     host_xmake_file="${host_xmake_file} x-solaris"
 215     ;;
 216   i[34567]86-pc-msdosdjgpp*)
 217     host_xm_file=i386/xm-djgpp.h
 218     host_exeext=.exe
 219     # Shorten $target_noncanonical for 8.3 filename conventions.
 220     case ${target} in
 221       *pc-msdosdjgpp*)
 222         target_noncanonical=djgpp
 223         ;;
 224     esac
 225     ;;
 226   i[34567]86-*-cygwin* | x86_64-*-cygwin*)
 227     host_xm_file=i386/xm-cygwin.h
 228     out_host_hook_obj=host-cygwin.o
 229     host_xmake_file="${host_xmake_file} i386/x-cygwin"
 230     host_exeext=.exe
 231     host_lto_plugin_soname=cyglto_plugin.dll
 232     ;;
 233   i[34567]86-*-mingw32* | x86_64-*-mingw*)
 234     host_xm_file=i386/xm-mingw32.h
 235     host_xmake_file="${host_xmake_file} ${host_xmake_mingw} i386/x-mingw32"
 236     host_extra_gcc_objs="${host_extra_gcc_objs} ${host_extra_gcc_objs_mingw} driver-mingw32.o"
 237     host_extra_objs="${host_extra_objs} ${host_extra_objs_mingw}"
 238     host_exeext=.exe
 239     out_host_hook_obj=host-mingw32.o
 240     host_lto_plugin_soname=liblto_plugin.dll
 241     case ${host} in
 242       x86_64-*-*)
 243         use_long_long_for_widest_fast_int=yes
 244         ;;
 245     esac
 246     ;;
 247   aarch64*-*-darwin*)
 248     out_host_hook_obj="${out_host_hook_obj} host-aarch64-darwin.o"
 249     host_xmake_file="${host_xmake_file} aarch64/x-darwin"
 250     ;;
 251   i[34567]86-*-darwin* | x86_64-*-darwin*)
 252     out_host_hook_obj="${out_host_hook_obj} host-i386-darwin.o"
 253     host_xmake_file="${host_xmake_file} i386/x-darwin"
 254     ;;
 255   powerpc-*-darwin*)
 256     out_host_hook_obj="${out_host_hook_obj} host-ppc-darwin.o"
 257     host_xmake_file="${host_xmake_file} rs6000/x-darwin"
 258     ;;
 259   powerpc64-*-darwin*)
 260     out_host_hook_obj="${out_host_hook_obj} host-ppc64-darwin.o"
 261     host_xmake_file="${host_xmake_file} rs6000/x-darwin64"
 262     ;;
 263   rs6000-ibm-aix* | powerpc-ibm-aix*)
 264     host_xmake_file="${host_xmake_file} rs6000/x-aix"
 265     ;;
 266   *-*-solaris2*)
 267     out_host_hook_obj=host-solaris.o
 268     host_xmake_file="${host_xmake_file} x-solaris"
 269     ;;
 270   *-*-linux*)
 271     out_host_hook_obj=host-linux.o
 272     host_xmake_file="${host_xmake_file} x-linux"
 273     ;;
 274   *-*-openbsd*)
 275     out_host_hook_obj=host-openbsd.o
 276     host_xmake_file="${host_xmake_file} x-openbsd"
 277     ;;
 278   *-*-netbsd*)
 279     out_host_hook_obj=host-netbsd.o
 280     host_xmake_file="${host_xmake_file} x-netbsd"
 281     ;;
 282   ia64-*-hpux*)
 283     use_long_long_for_widest_fast_int=yes
 284     out_host_hook_obj=host-hpux.o
 285     host_xmake_file="${host_xmake_file} x-hpux"
 286     ;;
 287   *-*-*vms*)
 288     host_xm_file="vms/xm-vms.h"
 289     host_xmake_file=vms/x-vms
 290     host_exeext=.exe
 291     host_can_use_collect2=no
 292     ;;
 293 esac