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.
68host_xm_file=
69host_xm_defines=
70host_xmake_file=
71host_exeext=
72host_extra_objs=
73host_extra_gcc_objs=
74out_host_hook_obj=host-default.o
75host_can_use_collect2=yes
76use_long_long_for_widest_fast_int=no
77host_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.
81case ${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    ;;
90esac
91
92# Common parts for widely ported systems.
93case ${host} in
94  *-darwin*)
95    # Generic darwin host support.
96    out_host_hook_obj=host-darwin.o
97    host_xmake_file="${host_xmake_file} x-darwin"
98    ;;
99esac
100
101case ${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    ;;
183esac
184
185# Machine-specific settings.
186case ${host} in
187  hppa1.0-*-hpux10* | hppa1.1-*-hpux10* | hppa2*-*-hpux10*)
188    out_host_hook_obj=host-hpux.o
189    host_xmake_file="${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 ${target} in
212      *pc-msdosdjgpp*)
213        target_noncanonical=djgpp
214        ;;
215    esac
216    ;;
217  i[34567]86-*-cygwin*)
218    host_xm_file=i386/xm-cygwin.h
219    out_host_hook_obj=host-cygwin.o
220    host_xmake_file="${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    ;;
285esac
286