1# GCC host-specific configuration file.
2# Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2006, 2007, 2008, 2009,
3# 2011 Free Software Foundation, Inc.
4
5#This file is part of GCC.
6
7#GCC is free software; you can redistribute it and/or modify it under
8#the terms of the GNU General Public License as published by the Free
9#Software Foundation; either version 3, or (at your option) any later
10#version.
11
12#GCC is distributed in the hope that it will be useful, but WITHOUT
13#ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14#FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
15#for more details.
16
17#You should have received a copy of the GNU General Public License
18#along with GCC; see the file COPYING3.  If not see
19#<http://www.gnu.org/licenses/>.
20
21# This is the GCC host-specific configuration file
22# where a configuration type is mapped to different system-specific
23# definitions and files.  This is invoked by the autoconf-generated
24# configure script.  Putting it in a separate shell file lets us skip
25# running autoconf when modifying host-specific information.
26
27# This file switches on the shell variable ${host}.  As much of this as
28# is reasonable should be replaced with autoconf tests in the future.
29
30# This file sets the following shell variables for use by the
31# autoconf-generated configure script:
32#
33#  host_xm_file         List of files to include when compiling for the
34#                       host machine.
35#
36#  host_xm_defines      List of macros to define when compiling for the
37#                       host machine.
38#
39#  host_xmake_file      List of host-specific makefile-fragments.
40#
41#  host_exeext          Set to the suffix, if the host machine requires
42#                       executables to have a file name suffix.
43#
44#  host_extra_objs      List of extra host-dependent objects that should
45#                       be linked into the compiler proper.
46#
47#  host_extra_gcc_objs  List of extra host-dependent objects that should
48#                       be linked into the gcc driver.
49#
50#  out_host_hook_obj    An object file that provides the host hooks.
51#
52#  host_can_use_collect2 Set to yes normally; to no if the host cannot
53#			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'.
58
59# When setting any of these variables, check to see if a corresponding
60# variable is present in config.build; if so, you will likely want to 
61# set it in both places.
62
63# Default settings.
64host_xm_file=
65host_xm_defines=
66host_xmake_file=
67host_exeext=
68host_extra_objs=
69host_extra_gcc_objs=
70out_host_hook_obj=host-default.o
71host_can_use_collect2=yes
72use_long_long_for_widest_fast_int=no
73
74# Unsupported hosts list.  Generally, only include hosts known to fail here,
75# since we allow hosts not listed to be supported generically.
76case ${host} in
77   i[34567]86-sequent-sysv \
78 | i[34567]86-sequent-sysv[123]* \
79 | i[34567]86-go32-* \
80 | i[34567]86-*-go32* \
81 | vax-*-vms*)
82    echo "*** Configuration for host ${host} not supported" 1>&2
83    exit 1
84    ;;
85esac
86
87# Common parts for widely ported systems.
88case ${host} in
89  *-darwin*)
90    # Generic darwin host support.
91    out_host_hook_obj=host-darwin.o
92    host_xmake_file="${host_xmake_file} x-darwin"
93    ;;
94esac
95
96case ${host} in
97  alpha*-*-linux*)
98    case ${target} in
99      alpha*-*-linux*)
100	host_extra_gcc_objs="driver-alpha.o"
101	host_xmake_file="${host_xmake_file} alpha/x-alpha"
102	;;
103    esac
104    ;;
105  i[34567]86-*-* \
106  | x86_64-*-* )
107    case ${target} in
108      i[34567]86-*-* \
109      | x86_64-*-* )
110	host_extra_gcc_objs="driver-i386.o"
111	host_xmake_file="${host_xmake_file} i386/x-i386"
112	;;
113    esac
114    ;;
115  mips*-*-linux*)
116    case ${target} in
117      mips*-*-linux*)
118	host_extra_gcc_objs="driver-native.o"
119	host_xmake_file="${host_xmake_file} mips/x-native"
120      ;;
121    esac
122    ;;
123  rs6000-*-* \
124  | powerpc*-*-* )
125    case ${target} in
126      rs6000-*-* \
127      | powerpc*-*-* )
128        host_extra_gcc_objs="driver-rs6000.o"
129        host_xmake_file="${host_xmake_file} rs6000/x-rs6000"
130        ;;
131    esac
132    case ${host} in
133      *-*-linux* | *-*-freebsd*)
134	if test "${GCC}:${ac_cv_sizeof_long}" = yes:4; then
135	  # On powerpc*-*-linux* use -Wl,--relax to link cc1,
136	  # if ld is new enough, otherwise force -O1 in CFLAGS.
137	  host_ppc_relax_xmake_file=
138	  host_ld_ver=`${CC} -Wl,--version 2>/dev/null | sed 1q`
139	  if echo "$host_ld_ver" | grep GNU > /dev/null; then
140	    host_ld_date=`echo $host_ld_ver \
141			  | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
142	    if test 0"$host_ld_date" -gt 20080806; then
143	      host_ppc_relax_xmake_file=rs6000/x-linux-relax
144	    fi
145	  fi
146	  if test -z "${host_ppc_relax_xmake_file}"; then
147	    host_ppc_relax_xmake_file=x-cflags-O1
148	  fi
149	  host_xmake_file="${host_xmake_file} ${host_ppc_relax_xmake_file}"
150	fi
151	;;
152    esac
153    ;;
154esac
155
156# Machine-specific settings.
157case ${host} in
158  alpha64-dec-*vms*)
159    host_xm_file="vms/xm-vms.h vms/xm-vms64.h"
160    host_xmake_file=vms/x-vms
161    host_exeext=.exe
162    host_can_use_collect2=no
163    prefix=/gnu
164    local_prefix=/gnu/local
165    ;;
166  alpha*-dec-osf*)
167    out_host_hook_obj=host-osf.o
168    host_xmake_file="${host_xmake_file} alpha/x-osf"
169    ;;
170  alpha*-dec-*vms*)
171    host_xm_file="vms/xm-vms.h"
172    host_xmake_file=vms/x-vms
173    host_exeext=.exe
174    host_can_use_collect2=no
175    prefix=/gnu
176    local_prefix=/gnu/local
177    ;;
178  hppa1.0-*-hpux10* | hppa1.1-*-hpux10* | hppa2*-*-hpux10*)
179    out_host_hook_obj=host-hpux.o
180    host_xmake_file="${host_xmake_file} x-hpux"
181    ;;
182  hppa1.0-*-hpux11* | hppa1.1-*-hpux11* | hppa2*-*-hpux11* | \
183  hppa*64*-*-hpux11*)
184    out_host_hook_obj=host-hpux.o
185    host_xmake_file="${host_xmake_file} x-hpux"
186    ;;
187  hppa*-*-linux*)
188    out_host_hook_obj=host-hpux.o
189    host_xmake_file="${host_xmake_file} x-hpux"
190    ;;
191  i370-*-opened* | i370-*-mvs* ) # IBM 360/370/390 Architecture
192    host_xm_defines='FATAL_EXIT_CODE=12'
193    ;;
194  i[34567]86-*-solaris2*)
195    out_host_hook_obj=host-solaris.o
196    host_xmake_file="${host_xmake_file} x-solaris"
197    ;;
198  i[34567]86-pc-msdosdjgpp*)
199    host_xm_file=i386/xm-djgpp.h
200    host_exeext=.exe
201    # Shorten $target_noncanonical for 8.3 filename conventions.
202    case ${target} in
203      *pc-msdosdjgpp*)
204        target_noncanonical=djgpp
205        ;;
206    esac
207    ;;
208  i[34567]86-*-pe | i[34567]86-*-cygwin*)
209    host_xm_file=i386/xm-cygwin.h
210    out_host_hook_obj=host-cygwin.o
211    host_xmake_file="${host_xmake_file} i386/x-cygwin"
212    host_exeext=.exe
213    ;;
214  i[34567]86-*-mingw32*)
215    host_xm_file=i386/xm-mingw32.h
216    host_xmake_file="${host_xmake_file} i386/x-mingw32"
217    host_exeext=.exe
218    out_host_hook_obj=host-mingw32.o
219    ;;
220  x86_64-*-mingw*)
221    use_long_long_for_widest_fast_int=yes
222    host_xm_file=i386/xm-mingw32.h
223    host_xmake_file="${host_xmake_file} i386/x-mingw32"
224    host_exeext=.exe
225    out_host_hook_obj=host-mingw32.o
226    ;;
227  i[34567]86-*-uwin*)
228    echo "*** UWIN may not be used as a host platform because"
229    echo "*** linking with posix.dll is not allowed by the GNU GPL."
230    exit 1
231    ;;
232  i[34567]86-*-darwin* | x86_64-*-darwin*)
233    out_host_hook_obj="${out_host_hook_obj} host-i386-darwin.o"
234    host_xmake_file="${host_xmake_file} i386/x-darwin"
235    ;;
236  ia64-hp-*vms*)
237    host_xm_file="vms/xm-vms.h vms/xm-vms64.h"
238    host_xmake_file=vms/x-vms
239    host_exeext=.exe
240    host_can_use_collect2=no
241    prefix=/gnu
242    local_prefix=/gnu/local
243    ;;
244  powerpc-*-beos*)
245    host_can_use_collect2=no
246    ;;
247  powerpc-*-darwin*)
248    out_host_hook_obj="${out_host_hook_obj} host-ppc-darwin.o"
249    host_xmake_file="${host_xmake_file} rs6000/x-darwin"
250    ;;
251  powerpc64-*-darwin*)
252    out_host_hook_obj="${out_host_hook_obj} host-ppc64-darwin.o"
253    host_xmake_file="${host_xmake_file} rs6000/x-darwin64"
254    ;;
255  rs6000-ibm-aix* | powerpc-ibm-aix*)
256    host_xmake_file="${host_xmake_file} rs6000/x-aix"
257    ;;
258  *-*-solaris2*)
259    out_host_hook_obj=host-solaris.o
260    host_xmake_file="${host_xmake_file} x-solaris"
261    ;;
262  *-*-linux*)
263    out_host_hook_obj=host-linux.o
264    host_xmake_file="${host_xmake_file} x-linux"
265    ;;
266  ia64-*-hpux*)
267    use_long_long_for_widest_fast_int=yes
268    out_host_hook_obj=host-hpux.o
269    host_xmake_file="${host_xmake_file} x-hpux"
270    ;;
271esac
272