341 lines
6.7 KiB
Text
341 lines
6.7 KiB
Text
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#!/bin/sh
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# Configuration script for GNU GAS
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# Copyright (C) 1988, 1990, 1991 Free Software Foundation, Inc.
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#This file is not yet part of GNU GAS.
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#GNU GAS is free software; you can redistribute it and/or modify
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#it under the terms of the GNU General Public License as published by
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#the Free Software Foundation; either version 1, or (at your option)
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#any later version.
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#GNU GAS is distributed in the hope that it will be useful,
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#but WITHOUT ANY WARRANTY; without even the implied warranty of
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#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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#GNU General Public License for more details.
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#You should have received a copy of the GNU General Public License
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#along with GNU GAS; see the file COPYING. If not, write to
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#the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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# $Id$
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#
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# Shell script to create proper links to machine-dependent files in
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# preparation for compiling gas.
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#
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# Usage: configure [-srcdir=DIR] [-host=HOST] TARGET
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#
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# If configure succeeds, it leaves its status in config.status.
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# If configure fails after disturbing the status quo,
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# config.status is removed.
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#
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progname=$0
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remove=rm
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hard_link=ln
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symbolic_link='ln -s'
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host=
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target=
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#for Test
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#remove="echo rm"
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#hard_link="echo ln"
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#symbolic_link="echo ln -s"
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for arg in $*;
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do
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case $arg in
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-srcdir=* | +srcdir=* | +srcdi=* | +srcd=* | +src=* | +sr=* | +s=*)
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srcdir=`echo $arg | sed 's/[+-]s[a-z]*=//'`
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;;
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-host=* | +host=* | +hos=* | +ho=* | +h=*)
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host=`echo $arg | sed 's/[+-]h[a-z]*=//'`
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;;
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*)
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# Allow configure HOST TARGET
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if [ x$host = x ]
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then
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host=$target
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fi
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target=$arg
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;;
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esac
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done
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# Complain if an arg is missing
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if [ x$target = x ]
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then
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echo "Usage: $progname [+srcdir=DIR] [+host=HOST] TARGET"
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echo -n "Where HOST and TARGET are something like "
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echo "\`vax', \`sun3', \`encore', etc."
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if [ -r config.status ]
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then
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cat config.status
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fi
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exit 1
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fi
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# Default other arg
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if [ x$host = x ]
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then
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host=$target
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fi
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# Find the source files, if location was not specified.
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if [ x$srcdir = x ]
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then
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srcdirdefaulted=1
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srcdir=.
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if [ ! -r as.c ]
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then
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srcdir=..
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fi
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fi
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if [ ! -r ${srcdir}/as.c ]
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then
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if [ x$srcdirdefaulted = x ]
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then
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echo "$progname: Can't find assembler sources in \`${srcdir}'." 1>&2
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else
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echo "$progname: Can't find assembler sources in \`.' or \`..'." 1>&2
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fi
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exit 1
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fi
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# Decode the host machine, then the target machine.
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# For the host machine, we save the ho variable as host_ho;
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# then we decode the target machine and forget everything else
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# that came from the host machine.
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for machine in $host $target; do
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tc=
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obj=
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host_header=
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obj_header=
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obj_source=
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te_header=
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tc_header=
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tc_source=
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make_var_file=
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case $machine in
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generic)
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;;
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i860)
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tc=i860
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obj=aout
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;;
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pmax | dec3100)
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ho=pmax
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;;
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sun386)
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ho=sun386
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;;
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sun4 | sun4-aout | sun-4 | sun4-os4 | sun-4-os4)
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ho=sun4
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tc=sparc
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obj=aout
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;;
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sun4-bout)
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tc=sparc
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obj=bout
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;;
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sun4-bfd-sunos)
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tc=sparc
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obj=bfd-sunos
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;;
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i960 | i960-coff)
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tc=i960
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obj=coff
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te=ic960
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;;
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i960-bout)
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tc=i960
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obj=bout
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;;
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i960-aout)
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tc=i960
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obj=aout
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;;
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sun3 | sun3-aout)
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ho=sun3
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tc=m68k
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obj=aout
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te=sun3
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;;
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a29k | a29k-aout)
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tc=a29k
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obj=aout
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;;
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a29k-coff)
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tc=a29k
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obj=coff
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;;
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i386)
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tc=i386
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obj=aout
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;;
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ns32k)
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tc=ns32k
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obj=aout
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;;
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vax)
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tc=vax
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obj=aout
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;;
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rs6000)
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;;
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esac
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if [ x$pass1done = x ]
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then
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if [ x$ho = x ]; then ho=$host; fi
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if [ x$ho_header = x ]; then ho_ho_header=ho-$ho.h
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else ho_ho_header=$ho_header
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fi
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if [ x$make_var_file = x ]
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then make_var_file=make-$ho; fi
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ho_make_var_file=$make_var_file
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pass1done=yes
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else
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host_make_var_file=$ho_make_var_file
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ho_header=$ho_ho_header
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fi
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done
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# Default the machine-specific variables that were not explicitly set.
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if [ x$te = x ]
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then te=generic; fi
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if [ x$te_header = x ]
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then te_header=te-$te.h; fi
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if [ x$tc = x ]
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then tc=generic; fi
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if [ x$tc_header = x ]
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then tc_header=tc-$tc.h; fi
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if [ x$tc_source = x ]
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then tc_source=tc-$tc.c; fi
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if [ x$obj = x ]
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then obj=generic; fi
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if [ x$obj_header = x ]
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then obj_header=obj-$obj.h; fi
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if [ x$obj_source = x ]
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then obj_source=obj-$obj.c; fi
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if [ x$atof_source = x ]
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then atof_source=atof-ieee.c; fi
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# Set up the list of links to be made.
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# $links is the list of link names, and $files is the list of names to link to.
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files="$ho_header $te_header $tc_header $tc_source $obj_header $obj_source $atof_source"
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links="host.h targ-env.h targ-cpu.h targ-cpu.c obj-format.h obj-format.c atof-targ.c"
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# Make the links.
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while [ -n "$files" ]
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do
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# set file to car of files, files to cdr of files
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set $files; file=$1; shift; files=$*
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set $links; link=$1; shift; links=$*
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if [ ! -r ${srcdir}/config/$file ]
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then
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echo "$progname: cannot create a link \`$link'," 1>&2
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echo "since the file \`config/$file' does not exist." 1>&2
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exit 1
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fi
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$remove -f $link
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rm -f config.status
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# Make a symlink if possible, otherwise try a hard link
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$symbolic_link ${srcdir}/config/$file $link 2>/dev/null || $hard_link ${srcdir}/config/$file $link
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if [ ! -r $link ]
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then
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echo "$progname: unable to link \`$link' to \`${srcdir}/config/$file'." 1>&2
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exit 1
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fi
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echo "Linked \`$link' to \`${srcdir}/config/$file'."
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done
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# Build a Makefile
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# Install a makefile, and make it set srcdir
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# if necessary so that the sources are found.
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# Also change its value of srcdir.
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# Also create a .gdbinit file which runs the one in srcdir
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# and tells GDB to look there for source files.
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case $srcdir in
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.)
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;;
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*)
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echo "VPATH = ${srcdir}" > x
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cat x ${srcdir}/Makefile.in | sed "s@^srcdir = \.@srcdir = ${srcdir}@" > Makefile.in
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rm x
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echo "dir ." > .gdbinit
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echo "dir ${srcdir}" >> .gdbinit
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echo "source ${srcdir}/.gdbinit" >> .gdbinit
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;;
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esac
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# Conditionalize the makefile for this machine.
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if [ -f ${srcdir}/config/${host_make_var_file} ]
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then
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sed -e "/####/ r ${srcdir}/config/${host_make_var_file}" Makefile.in > Makefile.tem
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else
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cp Makefile.in Makefile.tem
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fi
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# Remove all formfeeds, since some Makes get confused by them.
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sed "s/ //" Makefile.tem > Makefile.tem1
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# Delete the intermediate files
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rm Makefile.tem
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if [ x$srcdir != x. ]
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then
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rm Makefile.in
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fi
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# actual Makefile starts here.
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echo "host = $host" > Makefile
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echo "target = $target" >> Makefile
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# Define macro CROSS_ASSEMBLE in compilation if this is a cross-assembler.
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if [ x$host = x$target ]
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then
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sed "/^ALL=gas/s//ALL=bootstrap/" < Makefile.tem1 >> Makefile
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else
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echo "CROSS=-DCROSS_ASSEMBLE" >> Makefile
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cat Makefile.tem1 >> Makefile
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fi
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rm Makefile.tem1
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echo "Edited the makefile"
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if [ x$host = x$target ]
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then
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echo "Links are now set up for use with a $target." \
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| tee config.status
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else
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echo "Links are now set up for host $host and target $target." \
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| tee config.status
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fi
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exit 0
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