CoCalc -- crossexec.sh

GitHub Repository: att/ast
Path: blob/master/src/cmd/INIT/crossexec.sh
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########################################################################
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#                                                                      #
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#               This software is part of the ast package               #
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#          Copyright (c) 1994-2011 AT&T Intellectual Property          #
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#                      and is licensed under the                       #
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#                 Eclipse Public License, Version 1.0                  #
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#                    by AT&T Intellectual Property                     #
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#                                                                      #
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#                A copy of the License is available at                 #
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#          http://www.eclipse.org/org/documents/epl-v10.html           #
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#         (with md5 checksum b35adb5213ca9657e911e9befb180842)         #
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#                                                                      #
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#              Information and Software Systems Research               #
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#                            AT&T Research                             #
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#                           Florham Park NJ                            #
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#                                                                      #
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#                 Glenn Fowler <[email protected]>                  #
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#                                                                      #
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########################################################################
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: cross compiler a.out execution
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command=crossexec
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tmp=/tmp/cross$$
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case `(getopts '[-][123:xyz]' opt --xyz; echo 0$opt) 2>/dev/null` in
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0123)	ARGV0="-a $command"
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	USAGE=$'
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[-?
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@(#)$Id: crossexec (AT&T Labs Research) 2004-01-04 $
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]
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'$USAGE_LICENSE$'
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[+NAME?crossexec - cross compiler a.out execution]
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[+DESCRIPTION?\bcrossexec\b runs a cross-compiled \acommand\a in an environment
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	that supports a cross-compilation architecture different from the
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	current host. The cross environment is determined by \acrosstype\a,
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	usually a host type name produced by \bpackage\b(1). \acrosstype\a
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	is used to find an entry in \b$HOME/.crossexec\b that specifies
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	the cross compiler host and access details.]
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[+?The exit status of \bcrossexec\b is the exit status of \acommand\a.]
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[+CROSS ENVIRONMENT FILE?\b$HOME/.crossexec\b contains one line for each
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	supported \acrosstype\a. Each line contains 5 tab separated fields.
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	Field default values are specified as \b-\b. The fields are:]{
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	[+crosstype?The host type produced by \bpackage\b(1).]
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	[+host?The host name.]
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	[+user?The user name on \ahost\a. The default is the current user.]
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	[+dir?The directory to copy \acommand\a and execute it. The default
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		is the \auser\a \b$HOME\b on \ahost\a.]
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	[+shell?The command used to get shell access to \ahost\a. Currently
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		only \brsh\b and \bssh\b are supported.]
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	[+copy?The command used to copy \acommand\a to \ahost\a. Currently
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		only \brcp\b and \bscp\b are supported.]
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}
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[n:show?Show the underlying commands but do not execute.]
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crosstype command [ option ... ] [ file ... ]
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[+SEE ALSO?\brcp\b(1), \brsh\b(1), \bscp\b(1), \bssh\b(1)]
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'
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	;;
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*)	ARGV0=""
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	USAGE="crosstype command [ option ... ] [ file ... ]"
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	;;
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esac
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usage()
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{
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	OPTIND=0
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	getopts $ARGV0 "$USAGE" OPT '-?'
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	exit 2
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}
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exec=
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# get the options and operands
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while	getopts $ARGV0 "$USAGE" OPT
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do	case $OPT in
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	n)	exec=echo ;;
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	*)	usage ;;
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	esac
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done
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shift $OPTIND-1
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case $# in
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[01])	usage ;;
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esac
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type=$1
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shift
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cmd=$1
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shift
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# get the host info
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info=$HOME/.$command
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if	test ! -r $info
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then	echo "$command: $info: not found" >&2
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	exit 1
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fi
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ifs=${IFS-'
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	 '}
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while	:
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do	IFS='	'
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	read hosttype hostname usr dir sh cp
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	code=$?
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	IFS=$ifs
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	case $code in
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	0)	;;
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	*)	echo "$command: $type: unknown cross compiler host type" >&2
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		exit 1
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		;;
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	esac
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	case $hosttype in
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	$type)	break ;;
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	esac
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done < $info
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# fill in the defaults
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case $usr in
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-)	cpu= shu= ;;
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*)	cpu=${usr}@ shu="-l $usr" ;;
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esac
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case $dir in
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-)	dir= ;;
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esac
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case $sh in
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''|-)	sh=ssh ;;
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esac
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case $cp in
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''|-)	cp=scp ;;
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scp)	cp="$cp -q" ;;
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esac
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trap "rm -f $tmp" 0 1 2 3 15
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$exec $cp $cmd $cpu$hostname:$dir </dev/null || exit 1
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cmd=./${cmd##*/}
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$exec $sh $shu $hostname "cd $dir; LD_LIBRARY_PATH=: $cmd $@ </dev/null 2>/dev/null; code=\$?; rm -f $cmd; echo $command: exit \$code >&2" </dev/null 2>$tmp
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exit `sed -e '/^'$command': exit [0-9][0-9]*$/!d' -e 's/.* //' $tmp`
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