src/cmd/INIT/crossexec.sh

   1 ########################################################################
   2 #                                                                      #
   3 #               This software is part of the ast package               #
   4 #          Copyright (c) 1994-2016 AT&T Intellectual Property          #
   5 #                      and is licensed under the                       #
   6 #                 Eclipse Public License, Version 1.0                  #
   7 #                    by AT&T Intellectual Property                     #
   8 #                                                                      #
   9 #                A copy of the License is available at                 #
  10 #          http://www.eclipse.org/org/documents/epl-v10.html           #
  11 #         (with md5 checksum b35adb5213ca9657e911e9befb180842)         #
  12 #                                                                      #
  13 #              Information and Software Systems Research               #
  14 #                            AT&T Research                             #
  15 #                           Florham Park NJ                            #
  16 #                                                                      #
  17 #               Glenn Fowler <glenn.s.fowler@gmail.com>                #
  18 #                                                                      #
  19 ########################################################################
  20 ########################################################################
  21 #                                                                      #
  22 #               This software is part of the ast package               #
  23 #          Copyright (c) 1994-2011 AT&T Intellectual Property          #
  24 #                      and is licensed under the                       #
  25 #                 Eclipse Public License, Version 1.0                  #
  26 #                    by AT&T Intellectual Property                     #
  27 #                                                                      #
  28 #                A copy of the License is available at                 #
  29 #          http://www.eclipse.org/org/documents/epl-v10.html           #
  30 #         (with md5 checksum b35adb5213ca9657e911e9befb180842)         #
  31 #                                                                      #
  32 #              Information and Software Systems Research               #
  33 #                            AT&T Research                             #
  34 #                           Florham Park NJ                            #
  35 #                                                                      #
  36 #               Glenn Fowler <glenn.s.fowler@gmail.com>                #
  37 #                                                                      #
  38 ########################################################################
  39 : cross compiler a.out execution
  40
  41 command=crossexec
  42
  43 tmp=/tmp/cross$$
  44
  45 case `(getopts '[-][123:xyz]' opt --xyz; echo 0$opt) 2>/dev/null` in
  46 0123)   ARGV0="-a $command"
  47         USAGE=$'
  48 [-?
  49 @(#)$Id: crossexec (AT&T Labs Research) 2004-01-04 $
  50 ]
  51 '$USAGE_LICENSE$'
  52 [+NAME?crossexec - cross compiler a.out execution]
  53 [+DESCRIPTION?\bcrossexec\b runs a cross-compiled \acommand\a in an environment
  54         that supports a cross-compilation architecture different from the
  55         current host. The cross environment is determined by \acrosstype\a,
  56         usually a host type name produced by \bpackage\b(1). \acrosstype\a
  57         is used to find an entry in \b$HOME/.crossexec\b that specifies
  58         the cross compiler host and access details.]
  59 [+?The exit status of \bcrossexec\b is the exit status of \acommand\a.]
  60 [+CROSS ENVIRONMENT FILE?\b$HOME/.crossexec\b contains one line for each
  61         supported \acrosstype\a. Each line contains 5 tab separated fields.
  62         Field default values are specified as \b-\b. The fields are:]{
  63         [+crosstype?The host type produced by \bpackage\b(1).]
  64         [+host?The host name.]
  65         [+user?The user name on \ahost\a. The default is the current user.]
  66         [+dir?The directory to copy \acommand\a and execute it. The default
  67                 is the \auser\a \b$HOME\b on \ahost\a.]
  68         [+shell?The command used to get shell access to \ahost\a. Currently
  69                 only \brsh\b and \bssh\b are supported.]
  70         [+copy?The command used to copy \acommand\a to \ahost\a. Currently
  71                 only \brcp\b and \bscp\b are supported.]
  72 }
  73 [n:show?Show the underlying commands but do not execute.]
  74
  75 crosstype command [ option ... ] [ file ... ]
  76
  77 [+SEE ALSO?\brcp\b(1), \brsh\b(1), \bscp\b(1), \bssh\b(1)]
  78 '
  79         ;;
  80 *)      ARGV0=""
  81         USAGE="crosstype command [ option ... ] [ file ... ]"
  82         ;;
  83 esac
  84
  85 usage()
  86 {
  87         OPTIND=0
  88         getopts $ARGV0 "$USAGE" OPT '-?'
  89         exit 2
  90 }
  91
  92 exec=
  93
  94 # get the options and operands
  95
  96 while   getopts $ARGV0 "$USAGE" OPT
  97 do      case $OPT in
  98         n)      exec=echo ;;
  99         *)      usage ;;
 100         esac
 101 done
 102 shift $OPTIND-1
 103 case $# in
 104 [01])   usage ;;
 105 esac
 106
 107 type=$1
 108 shift
 109 cmd=$1
 110 shift
 111
 112 # get the host info
 113
 114 info=$HOME/.$command
 115 if      test ! -r $info
 116 then    echo "$command: $info: not found" >&2
 117         exit 1
 118 fi
 119 ifs=${IFS-'
 120          '}
 121 while   :
 122 do      IFS='   '
 123         read hosttype hostname usr dir sh cp
 124         code=$?
 125         IFS=$ifs
 126         case $code in
 127         0)      ;;
 128         *)      echo "$command: $type: unknown cross compiler host type" >&2
 129                 exit 1
 130                 ;;
 131         esac
 132         case $hosttype in
 133         $type)  break ;;
 134         esac
 135 done < $info
 136
 137 # fill in the defaults
 138
 139 case $usr in
 140 -)      cpu= shu= ;;
 141 *)      cpu=${usr}@ shu="-l $usr" ;;
 142 esac
 143 case $dir in
 144 -)      dir= ;;
 145 esac
 146 case $sh in
 147 ''|-)   sh=ssh ;;
 148 esac
 149 case $cp in
 150 ''|-)   cp=scp ;;
 151 scp)    cp="$cp -q" ;;
 152 esac
 153
 154 trap "rm -f $tmp" 0 1 2 3 15
 155 $exec $cp $cmd $cpu$hostname:$dir </dev/null || exit 1
 156 cmd=./${cmd##*/}
 157 $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
 158 exit `sed -e '/^'$command': exit [0-9][0-9]*$/!d' -e 's/.* //' $tmp`