config.host revision 285830
181588Sru# GCC host-specific configuration file.
257260Sjasone# Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2006
379754Sdd# Free Software Foundation, Inc.
457260Sjasone
557260Sjasone#This file is part of GCC.
657260Sjasone
757260Sjasone#GCC is free software; you can redistribute it and/or modify it under
857260Sjasone#the terms of the GNU General Public License as published by the Free
957260Sjasone#Software Foundation; either version 2, or (at your option) any later
1057260Sjasone#version.
1157260Sjasone
1257260Sjasone#GCC is distributed in the hope that it will be useful, but WITHOUT
1357260Sjasone#ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1457260Sjasone#FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
1579754Sdd#for more details.
1657260Sjasone
1757260Sjasone#You should have received a copy of the GNU General Public License
1857260Sjasone#along with GCC; see the file COPYING.  If not, write to the Free
1957260Sjasone#Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
2057260Sjasone#02110-1301, USA.
2157260Sjasone
2257260Sjasone# This is the GCC host-specific configuration file
2357260Sjasone# where a configuration type is mapped to different system-specific
2457260Sjasone# definitions and files.  This is invoked by the autoconf-generated
2557260Sjasone# configure script.  Putting it in a separate shell file lets us skip
2657260Sjasone# running autoconf when modifying host-specific information.
2779754Sdd
2857260Sjasone# This file switches on the shell variable ${host}.  As much of this as
29131465Sru# is reasonable should be replaced with autoconf tests in the future.
30202133Sdavidxu
3157260Sjasone# This file sets the following shell variables for use by the
3257260Sjasone# autoconf-generated configure script:
3357260Sjasone#
3457260Sjasone#  host_xm_file         List of files to include when compiling for the
3557260Sjasone#                       host machine.
3659501Sphantom#
37124530Sru#  host_xm_defines      List of macros to define when compiling for the
3857260Sjasone#                       host machine.
3984306Sru#
4057260Sjasone#  host_xmake_file      List of host-specific makefile-fragments.
4157260Sjasone#
4257260Sjasone#  host_exeext          Set to the suffix, if the host machine requires
4357260Sjasone#                       executables to have a file name suffix.
4457260Sjasone#
4557260Sjasone#  host_extra_objs      List of extra host-dependent objects that should
4657260Sjasone#                       be linked into the compiler proper.
4757260Sjasone#
4857260Sjasone#  host_extra_gcc_objs  List of extra host-dependent objects that should
49201884Sdavidxu#                       be linked into the gcc driver.
5057260Sjasone#
5157260Sjasone#  out_host_hook_obj    An object file that provides the host hooks.
52201884Sdavidxu#
53201884Sdavidxu#  host_can_use_collect2 Set to yes normally; to no if the host cannot
54201884Sdavidxu#			link or otherwise use collect2
55202133Sdavidxu#  use_long_long_for_widest_fast_int Set this to 'yes' if 'long long'
56201884Sdavidxu#			(or '__int64') is wider than 'long' but still
57201884Sdavidxu#			efficeiently supported by the host hardware.
58201884Sdavidxu#			Only affects compile speed.  Default is 'no'.
59201884Sdavidxu
60201884Sdavidxu# When setting any of these variables, check to see if a corresponding
61201884Sdavidxu# variable is present in config.build; if so, you will likely want to 
6257260Sjasone# set it in both places.
6357260Sjasone
6457260Sjasone# Default settings.
6557260Sjasonehost_xm_file=
6657260Sjasonehost_xm_defines=
67112542Scharnierhost_xmake_file=
68112542Scharnierhost_exeext=
69112542Scharnierhost_extra_objs=
7057260Sjasonehost_extra_gcc_objs=
71112542Scharnierout_host_hook_obj=host-default.o
72112542Scharnierhost_can_use_collect2=yes
7357260Sjasoneuse_long_long_for_widest_fast_int=no
74112542Scharnier
75112542Scharnier# Unsupported hosts list.  Generally, only include hosts known to fail here,
7657260Sjasone# since we allow hosts not listed to be supported generically.
7781352Syarcase ${host} in
7857260Sjasone   i[34567]86-sequent-sysv \
79112542Scharnier | i[34567]86-sequent-sysv[123]* \
8057260Sjasone | i[34567]86-go32-* \
81112542Scharnier | i[34567]86-*-go32* \
8257260Sjasone | vax-*-vms*)
8357260Sjasone    echo "*** Configuration for host ${host} not supported" 1>&2
84131465Sru    exit 1
8557260Sjasone    ;;
86131465Sruesac
87131465Sru
8857260Sjasone# Common parts for widely ported systems.
8957260Sjasonecase ${host} in
9057260Sjasone  *-darwin*)
9157260Sjasone    # Generic darwin host support.
9263352Sjasone    out_host_hook_obj=host-darwin.o
93147952Srwatson    host_xmake_file="${host_xmake_file} x-darwin"
9463352Sjasone    ;;
9557260Sjasoneesac
96109220Stjr
97109220Stjrcase ${host} in
9857260Sjasone  i[34567]86-*-* \
99112542Scharnier  | x86_64-*-* )
10057260Sjasone    case ${target} in
101112542Scharnier      i[34567]86-*-* \
10273093Sru      | x86_64-*-* )
103	host_extra_gcc_objs="driver-i386.o"
104	host_xmake_file="${host_xmake_file} i386/x-i386"
105      ;;
106    esac
107    ;;
108esac
109
110# Machine-specific settings.
111case ${host} in
112  alpha*-dec-*vms*)
113    host_xm_file=alpha/xm-vms.h
114    host_xmake_file="${host_xmake_file} alpha/x-vms"
115    host_exeext=.exe
116    host_can_use_collect2=no
117    # This removes the cpu type and manufacturer components and
118    #  replaces "." with "_" in the operating system version.
119    target_noncanonical=`echo $host | sed 's/.*-.*-\(.*\)$/\1/' | sed 's/\./_/g'`
120    prefix=/gnu
121    local_prefix=/gnu
122    ;;
123  hppa1.1-*-pro*)
124    host_xmake_file="${host_xmake_file} pa/x-ada"
125    ;;
126  hppa1.1-*-osf*)
127    host_xmake_file="${host_xmake_file} pa/x-ada"
128    ;;
129  hppa1.1-*-rtems*)
130    host_xmake_file="${host_xmake_file} pa/x-ada"
131    ;;
132  hppa1.1-*-bsd*)
133    host_xmake_file="${host_xmake_file} pa/x-ada"
134    ;;
135  hppa1.0-*-hpux10* | hppa1.1-*-hpux10* | hppa2*-*-hpux10*)
136    out_host_hook_obj=host-hpux.o
137    host_xmake_file="${host_xmake_file} pa/x-ada-hpux10 x-hpux"
138    ;;
139  hppa1.0-*-hpux11* | hppa1.1-*-hpux11* | hppa2*-*-hpux11* | \
140  hppa*64*-*-hpux11*)
141    out_host_hook_obj=host-hpux.o
142    host_xmake_file="${host_xmake_file} pa/x-ada x-hpux"
143    ;;
144  hppa*-*-linux*)
145    out_host_hook_obj=host-hpux.o
146    host_xmake_file="${host_xmake_file} x-hpux"
147    ;;
148  i370-*-opened* | i370-*-mvs* ) # IBM 360/370/390 Architecture
149    host_xm_defines='FATAL_EXIT_CODE=12'
150    ;;
151  i[34567]86-*-solaris2*)
152    out_host_hook_obj=host-solaris.o
153    host_xmake_file="${host_xmake_file} x-solaris"
154    ;;
155  i[34567]86-pc-msdosdjgpp*)
156    host_xm_file=i386/xm-djgpp.h
157    host_exeext=.exe
158    # Shorten $target_noncanonical for 8.3 filename conventions.
159    case ${target} in
160      *pc-msdosdjgpp*)
161        target_noncanonical=djgpp
162        ;;
163    esac
164    ;;
165  i[34567]86-*-pe | i[34567]86-*-cygwin*)
166    host_xm_file=i386/xm-cygwin.h
167    out_host_hook_obj=host-cygwin.o
168    host_xmake_file="${host_xmake_file} i386/x-cygwin"
169    host_exeext=.exe
170    ;;
171  i[34567]86-*-mingw32*)
172    host_xm_file=i386/xm-mingw32.h
173    host_xmake_file="${host_xmake_file} i386/x-mingw32"
174    host_exeext=.exe
175    out_host_hook_obj=host-mingw32.o
176    ;;
177  i[34567]86-*-uwin*)
178    echo "*** UWIN may not be used as a host platform because"
179    echo "*** linking with posix.dll is not allowed by the GNU GPL."
180    exit 1
181    ;;
182  i[34567]86-*-interix3*)
183    host_xmake_file="${host_xmake_file} x-interix"
184    ;;
185  i[34567]86-*-darwin* | x86_64-*-darwin*)
186    out_host_hook_obj="${out_host_hook_obj} host-i386-darwin.o"
187    host_xmake_file="${host_xmake_file} i386/x-darwin"
188    ;;
189  powerpc-*-beos*)
190    host_can_use_collect2=no
191    ;;
192  powerpc-*-darwin*)
193    out_host_hook_obj="${out_host_hook_obj} host-ppc-darwin.o"
194    host_xmake_file="${host_xmake_file} rs6000/x-darwin"
195    ;;
196  powerpc64-*-darwin*)
197    out_host_hook_obj="${out_host_hook_obj} host-ppc64-darwin.o"
198    host_xmake_file="${host_xmake_file} rs6000/x-darwin64"
199    ;;
200  *-*-solaris2*)
201    out_host_hook_obj=host-solaris.o
202    host_xmake_file="${host_xmake_file} x-solaris"
203    ;;
204  *-*-linux*)
205    out_host_hook_obj=host-linux.o
206    host_xmake_file="${host_xmake_file} x-linux"
207    ;;
208  ia64-*-hpux*)
209    use_long_long_for_widest_fast_int=yes
210    out_host_hook_obj=host-hpux.o
211    host_xmake_file="${host_xmake_file} x-hpux"
212    ;;
213esac
214