rtlinux

fsmlabs的real time linux的内核

#!/bin/sh
#
#  Utility : rtlinux
#   Author : Edgar F. Hilton
#     Date : Nov. 18, 1999 and Sep 18, 2000
# Warranty : GPL
#   System : Linux 2.2.x kernels
# 
# NOTE: 
# A full list of RTLinux modules must be edited into the "INSERT_LIST"
# variable below in the proper sequence of insertion

# insertion sequence for RTLinux modules (assume user modules will go last)
RTL_MODULES_LIST=`rtl-config --modules`

# usage message
usage ()
{
    echo "USAGE: "
    echo "     rtlinux {start|stop|status} [module(s)]"
    echo
    echo "EXAMPLES:"
    echo 
    echo "                       To insert RTLinux only --> ./rtlinux start"
    echo "               To remove RTLinux modules only --> ./rtlinux stop"
    echo "              To check status of RTLinux only --> ./rtlinux status"
    echo "     To insert RTLinux and foo{1,2}.o modules --> ./rtlinux start foo1 foo2"
    echo "     To remove foo{1,2}.o and RTLinux modules --> ./rtlinux stop foo1 foo2"
    echo "To check status of RTLinux and foo{1,2}.o modules --> ./rtlinux status foo1 foo2"
    echo
    echo "Copyright 2000, Finite State Machine Labs, Inc."
    echo "Questions? Contact Edgar F. Hilton <[e-mail]>"
    echo
}

if [ $# -eq 0 ]; then
    usage 1 1
    exit 1
else
    COMMAND=$1
fi

# binary used to insert the modules
if [ -x /sbin/modprobe ]; then
    MODPROBE="/sbin/modprobe -a"
else
    MODPROBE="`which modprobe` -a"
    if [ ! -x $MODPROBE ]; then
	echo "ERROR: 'modprobe' was not found in your path"
	exit 1
    fi
fi

if [ -x /sbin/insmod ]; then
    INSMOD=/sbin/insmod
else
    INSMOD=`which insmod`
    if [ ! -x $INSMOD ]; then
	echo "ERROR: 'insmod' was not found in your path"
	exit 1
    fi
fi

# binary used to remove the modules
if [ -x /sbin/rmmod ]; then
    RMMOD="/sbin/rmmod -r"
else
    RMMOD="`which rmmod` -r"
    if [ ! -x $RMMOD ]; then
	echo "ERROR: 'rmmod' was not found in your path"
	exit 1
    fi
fi

# binary used to list modules
if [ -x /sbin/lsmod ]; then
    LSMOD=/sbin/lsmod
else
    LSMOD=`which lsmod`
    if [ ! -x $LSMOD ]; then
	echo "ERROR: 'lsmod' was not found in your path"
	exit 1
    fi
fi

# path to grep
GREP=`which grep`
if [ ! -x $GREP ]; then
    echo "ERROR: 'grep' was not found in your path"
    exit 1
fi

# add the user-specified module to the insert and remove list, respectively
USER_INS_LIST=""
TOTAL_LIST=${RTL_MODULES_LIST}

if [ $# -ge 2 ] ; then
    shift 1
    for modules in $@
    do
	TEMP=`echo $modules | sed -e s/"\.o"$//`
	USER_INS_LIST="$USER_INS_LIST $TEMP.o"
    done
fi

# reverse the USER_INS_LIST to create a removal sequence for user modules
USER_DEL_LIST=""
for modules in $USER_INS_LIST; do
    TEMP=`echo $modules | sed -e s/"\.o"$//`
    USER_DEL_LIST="$TEMP $USER_DEL_LIST"
done
TOTAL_LIST="${USER_DEL_LIST} ${TOTAL_LIST}"

# Do the heavy work...
case "$COMMAND" in
  start|insert)
	${MODPROBE} ${RTL_MODULES_LIST}

	for modules in $USER_INS_LIST
	do
           ${INSMOD}  $modules
	done
	
	$0 status ${USER_INS_LIST}
	;;
  stop|remove)
	for modules in $USER_DEL_LIST
	do
	    MODINS=`${LSMOD} | ${GREP} ^$modules`
	    if [ "$MODINS" ]; then
		${RMMOD} $modules
	    fi
	done

	for modules in ${RTL_MODULES_LIST}
	do
	    MODINS=`${LSMOD} | ${GREP} ^$modules`
	    if [ "$MODINS" ]; then
		${RMMOD} $modules
	    fi
	done

	$0 status ${USER_DEL_LIST}
	;;
  status)
	echo
	echo "Scheme: (-) not loaded, (+) loaded"
	for modules in $TOTAL_LIST
	do
	    MODINS=`${LSMOD} | ${GREP} ^$modules`
	    if [ "$MODINS" ]; then
		echo "  (+) $modules "
	    else	
		echo "  (-) $modules "
	    fi
	done
	;;
  *)
    usage 1 1
    exit 1
esac

# Exit normally
echo
exit 0