20180-12-08 Steven G. Kargl <kargl@gcc.gnu.org>
[official-gcc.git] / gcc / config.host
blob970d4d549f210d7653257b8d255cc82a7de45bde
1 # GCC host-specific configuration file.
2 # Copyright (C) 1997-2018 Free Software Foundation, Inc.
4 #This file is part of GCC.
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.
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.
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/>.
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.
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.
29 # This file sets the following shell variables for use by the
30 # autoconf-generated configure script:
32 #  host_xm_file         List of files to include when compiling for the
33 #                       host machine.
35 #  host_xm_defines      List of macros to define when compiling for the
36 #                       host machine.
38 #  host_xmake_file      List of host-specific makefile-fragments.
40 #  host_exeext          Set to the suffix, if the host machine requires
41 #                       executables to have a file name suffix.
43 #  host_extra_objs      List of extra host-dependent objects that should
44 #                       be linked into the compiler proper.
46 #  host_extra_gcc_objs  List of extra host-dependent objects that should
47 #                       be linked into the gcc driver.
49 #  out_host_hook_obj    An object file that provides the host hooks.
51 #  host_can_use_collect2 Set to yes normally; to no if the host cannot
52 #                       link or otherwise use collect2
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'.
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".
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.
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
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
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
101 case ${host} in
102   aarch64*-*-freebsd* | aarch64*-*-linux* | aarch64*-*-fuchsia*)
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* | arm*-*-fuchsia*)
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 ${target} in
147       powerpc*-*-*spe*)
148         host_extra_gcc_objs="driver-powerpcspe.o"
149         host_xmake_file="${host_xmake_file} powerpcspe/x-powerpcspe"
150         ;;
151       rs6000-*-* \
152       | powerpc*-*-* )
153         host_extra_gcc_objs="driver-rs6000.o"
154         host_xmake_file="${host_xmake_file} rs6000/x-rs6000"
155         ;;
156     esac
157     case ${host} in
158       *-*-linux* | *-*-freebsd*)
159         if test "${GCC}:${ac_cv_sizeof_long}" = yes:4; then
160           # On powerpc*-*-linux* use -Wl,--relax to link cc1,
161           # if ld is new enough, otherwise force -O1 in CFLAGS.
162           host_ppc_relax_xmake_file=
163           host_ld_ver=`${CC} -Wl,--version 2>/dev/null | sed 1q`
164           if echo "$host_ld_ver" | grep GNU > /dev/null; then
165             host_ld_date=`echo $host_ld_ver \
166                           | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
167             if test 0"$host_ld_date" -gt 20080806; then
168               host_ppc_relax_xmake_file=rs6000/x-linux-relax
169             fi
170           fi
171           if test -z "${host_ppc_relax_xmake_file}"; then
172             host_ppc_relax_xmake_file=x-cflags-O1
173           fi
174           host_xmake_file="${host_xmake_file} ${host_ppc_relax_xmake_file}"
175         fi
176         ;;
177     esac
178     ;;
179   s390-*-* | s390x-*-*)
180     case ${target} in
181       s390-*-* | s390x-*-*)
182         host_extra_gcc_objs="driver-native.o"
183         host_xmake_file="${host_xmake_file} s390/x-native"
184         ;;
185     esac
186     ;;
187   sparc*-*-solaris2*)
188     case ${target} in
189       sparc*-*-solaris2*)
190         host_extra_gcc_objs="driver-sparc.o"
191         host_xmake_file="${host_xmake_file} sparc/x-sparc"
192         ;;
193     esac
194     ;;
195   sparc*-*-linux*)
196     case ${target} in
197       sparc*-*-linux*)
198         host_extra_gcc_objs="driver-sparc.o"
199         host_xmake_file="${host_xmake_file} sparc/x-sparc"
200         ;;
201     esac
202     ;;
203 esac
205 # Machine-specific settings.
206 case ${host} in
207   hppa1.0-*-hpux10* | hppa1.1-*-hpux10* | hppa2*-*-hpux10*)
208     out_host_hook_obj=host-hpux.o
209     host_xmake_file="${host_xmake_file} x-hpux"
210     ;;
211   hppa1.0-*-hpux11* | hppa1.1-*-hpux11* | hppa2*-*-hpux11* | \
212   hppa*64*-*-hpux11*)
213     out_host_hook_obj=host-hpux.o
214     host_xmake_file="${host_xmake_file} x-hpux"
215     ;;
216   hppa*-*-linux*)
217     out_host_hook_obj=host-hpux.o
218     host_xmake_file="${host_xmake_file} x-hpux"
219     ;;
220   i[34567]86-*-solaris2* | x86_64-*-solaris2.1[0-9]*)
221     out_host_hook_obj=host-solaris.o
222     host_xmake_file="${host_xmake_file} x-solaris"
223     ;;
224   i[34567]86-pc-msdosdjgpp*)
225     host_xm_file=i386/xm-djgpp.h
226     host_exeext=.exe
227     # Shorten $target_noncanonical for 8.3 filename conventions.
228     case ${target} in
229       *pc-msdosdjgpp*)
230         target_noncanonical=djgpp
231         ;;
232     esac
233     ;;
234   i[34567]86-*-cygwin* | x86_64-*-cygwin*)
235     host_xm_file=i386/xm-cygwin.h
236     out_host_hook_obj=host-cygwin.o
237     host_xmake_file="${host_xmake_file} i386/x-cygwin"
238     host_exeext=.exe
239     host_lto_plugin_soname=cyglto_plugin-0.dll
240     ;;
241   i[34567]86-*-mingw32*)
242     host_xm_file=i386/xm-mingw32.h
243     host_xmake_file="${host_xmake_file} i386/x-mingw32"
244     host_exeext=.exe
245     out_host_hook_obj=host-mingw32.o
246     host_extra_gcc_objs="${host_extra_gcc_objs} driver-mingw32.o"
247     host_lto_plugin_soname=liblto_plugin-0.dll
248     ;;
249   x86_64-*-mingw*)
250     use_long_long_for_widest_fast_int=yes
251     host_xm_file=i386/xm-mingw32.h
252     host_xmake_file="${host_xmake_file} i386/x-mingw32"
253     host_exeext=.exe
254     out_host_hook_obj=host-mingw32.o
255     host_extra_gcc_objs="${host_extra_gcc_objs} driver-mingw32.o"
256     host_lto_plugin_soname=liblto_plugin-0.dll
257     ;;
258   i[34567]86-*-darwin* | x86_64-*-darwin*)
259     out_host_hook_obj="${out_host_hook_obj} host-i386-darwin.o"
260     host_xmake_file="${host_xmake_file} i386/x-darwin"
261     ;;
262   powerpc-*-darwin*)
263     out_host_hook_obj="${out_host_hook_obj} host-ppc-darwin.o"
264     host_xmake_file="${host_xmake_file} rs6000/x-darwin"
265     ;;
266   powerpc64-*-darwin*)
267     out_host_hook_obj="${out_host_hook_obj} host-ppc64-darwin.o"
268     host_xmake_file="${host_xmake_file} rs6000/x-darwin64"
269     ;;
270   rs6000-ibm-aix* | powerpc-ibm-aix*)
271     host_xmake_file="${host_xmake_file} rs6000/x-aix"
272     ;;
273   *-*-solaris2*)
274     out_host_hook_obj=host-solaris.o
275     host_xmake_file="${host_xmake_file} x-solaris"
276     ;;
277   *-*-linux*)
278     out_host_hook_obj=host-linux.o
279     host_xmake_file="${host_xmake_file} x-linux"
280     ;;
281   *-*-openbsd*)
282     out_host_hook_obj=host-openbsd.o
283     host_xmake_file="${host_xmake_file} x-openbsd"
284     ;;
285   *-*-netbsd*)
286     out_host_hook_obj=host-netbsd.o
287     host_xmake_file="${host_xmake_file} x-netbsd"
288     ;;
289   ia64-*-hpux*)
290     use_long_long_for_widest_fast_int=yes
291     out_host_hook_obj=host-hpux.o
292     host_xmake_file="${host_xmake_file} x-hpux"
293     ;;
294   *-*-*vms*)
295     host_xm_file="vms/xm-vms.h"
296     host_xmake_file=vms/x-vms
297     host_exeext=.exe
298     host_can_use_collect2=no
299     ;;
300 esac