2015-05-12 Pierre-Marie de Rodat <derodat@adacore.com>
[official-gcc.git] / gcc / config.host
bloba8896d1c382ea65e3101292b27b60e049094bec4
1 # GCC host-specific configuration file.
2 # Copyright (C) 1997-2015 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*-*-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   sparc*-*-solaris2*)
176     case ${target} in
177       sparc*-*-solaris2*)
178         host_extra_gcc_objs="driver-sparc.o"
179         host_xmake_file="${host_xmake_file} sparc/x-sparc"
180         ;;
181     esac
182     ;;
183   sparc*-*-linux*)
184     case ${target} in
185       sparc*-*-linux*)
186         host_extra_gcc_objs="driver-sparc.o"
187         host_xmake_file="${host_xmake_file} sparc/x-sparc"
188         ;;
189     esac
190     ;;
191 esac
193 # Machine-specific settings.
194 case ${host} in
195   hppa1.0-*-hpux10* | hppa1.1-*-hpux10* | hppa2*-*-hpux10*)
196     out_host_hook_obj=host-hpux.o
197     host_xmake_file="${host_xmake_file} x-hpux"
198     ;;
199   hppa1.0-*-hpux11* | hppa1.1-*-hpux11* | hppa2*-*-hpux11* | \
200   hppa*64*-*-hpux11*)
201     out_host_hook_obj=host-hpux.o
202     host_xmake_file="${host_xmake_file} x-hpux"
203     ;;
204   hppa*-*-linux*)
205     out_host_hook_obj=host-hpux.o
206     host_xmake_file="${host_xmake_file} x-hpux"
207     ;;
208   i370-*-opened* | i370-*-mvs* ) # IBM 360/370/390 Architecture
209     host_xm_defines='FATAL_EXIT_CODE=12'
210     ;;
211   i[34567]86-*-solaris2* | x86_64-*-solaris2.1[0-9]*)
212     out_host_hook_obj=host-solaris.o
213     host_xmake_file="${host_xmake_file} x-solaris"
214     ;;
215   i[34567]86-pc-msdosdjgpp*)
216     host_xm_file=i386/xm-djgpp.h
217     host_exeext=.exe
218     # Shorten $target_noncanonical for 8.3 filename conventions.
219     case ${target} in
220       *pc-msdosdjgpp*)
221         target_noncanonical=djgpp
222         ;;
223     esac
224     ;;
225   i[34567]86-*-cygwin* | x86_64-*-cygwin*)
226     host_xm_file=i386/xm-cygwin.h
227     out_host_hook_obj=host-cygwin.o
228     host_xmake_file="${host_xmake_file} i386/x-cygwin"
229     host_exeext=.exe
230     host_lto_plugin_soname=cyglto_plugin-0.dll
231     ;;
232   i[34567]86-*-mingw32*)
233     host_xm_file=i386/xm-mingw32.h
234     host_xmake_file="${host_xmake_file} i386/x-mingw32"
235     host_exeext=.exe
236     out_host_hook_obj=host-mingw32.o
237     host_lto_plugin_soname=liblto_plugin-0.dll
238     ;;
239   x86_64-*-mingw*)
240     use_long_long_for_widest_fast_int=yes
241     host_xm_file=i386/xm-mingw32.h
242     host_xmake_file="${host_xmake_file} i386/x-mingw32"
243     host_exeext=.exe
244     out_host_hook_obj=host-mingw32.o
245     host_lto_plugin_soname=liblto_plugin-0.dll
246     ;;
247   i[34567]86-*-uwin*)
248     echo "*** UWIN may not be used as a host platform because"
249     echo "*** linking with posix.dll is not allowed by the GNU GPL."
250     exit 1
251     ;;
252   i[34567]86-*-darwin* | x86_64-*-darwin*)
253     out_host_hook_obj="${out_host_hook_obj} host-i386-darwin.o"
254     host_xmake_file="${host_xmake_file} i386/x-darwin"
255     ;;
256   powerpc-*-beos*)
257     host_can_use_collect2=no
258     ;;
259   powerpc-*-darwin*)
260     out_host_hook_obj="${out_host_hook_obj} host-ppc-darwin.o"
261     host_xmake_file="${host_xmake_file} rs6000/x-darwin"
262     ;;
263   powerpc64-*-darwin*)
264     out_host_hook_obj="${out_host_hook_obj} host-ppc64-darwin.o"
265     host_xmake_file="${host_xmake_file} rs6000/x-darwin64"
266     ;;
267   rs6000-ibm-aix* | powerpc-ibm-aix*)
268     host_xmake_file="${host_xmake_file} rs6000/x-aix"
269     ;;
270   *-*-solaris2*)
271     out_host_hook_obj=host-solaris.o
272     host_xmake_file="${host_xmake_file} x-solaris"
273     ;;
274   *-*-linux*)
275     out_host_hook_obj=host-linux.o
276     host_xmake_file="${host_xmake_file} x-linux"
277     ;;
278   *-*-openbsd*)
279     out_host_hook_obj=host-openbsd.o
280     host_xmake_file="${host_xmake_file} x-openbsd"
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