651 lines
18 KiB
Bash
651 lines
18 KiB
Bash
#! /bin/sh -
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# $NetBSD: makesyscalls.sh,v 1.75 2008/11/16 18:40:13 pooka Exp $
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#
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# Copyright (c) 1994, 1996, 2000 Christopher G. Demetriou
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. All advertising materials mentioning features or use of this software
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# must display the following acknowledgement:
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# This product includes software developed for the NetBSD Project
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# by Christopher G. Demetriou.
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# 4. The name of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93
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set -e
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case $# in
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2) ;;
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*) echo "Usage: $0 config-file input-file" 1>&2
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exit 1
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;;
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esac
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# the config file sets the following variables:
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# sysalign check for alignment of off_t
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# sysnames the syscall names file
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# sysnumhdr the syscall numbers file
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# syssw the syscall switch file
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# sysarghdr the syscall argument struct definitions
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# compatopts those syscall types that are for 'compat' syscalls
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# switchname the name for the 'struct sysent' we define
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# namesname the name for the 'const char *[]' we define
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# constprefix the prefix for the system call constants
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# registertype the type for register_t
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# nsysent the size of the sysent table
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# sys_nosys [optional] name of function called for unsupported
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# syscalls, if not sys_nosys()
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# maxsysargs [optiona] the maximum number or arguments
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#
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# NOTE THAT THIS makesyscalls.sh DOES NOT SUPPORT 'SYSLIBCOMPAT'.
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# source the config file.
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sys_nosys="sys_nosys" # default is sys_nosys(), if not specified otherwise
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maxsysargs=8 # default limit is 8 (32bit) arguments
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rumpcalls="/dev/null"
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rumpcallshdr="/dev/null"
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. ./$1
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# tmp files:
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sysdcl="sysent.dcl"
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sysprotos="sys.protos"
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syscompat_pref="sysent."
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sysent="sysent.switch"
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sysnamesbottom="sysnames.bottom"
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trap "rm $sysdcl $sysprotos $sysent $sysnamesbottom" 0
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# Awk program (must support nawk extensions)
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# Use "awk" at Berkeley, "nawk" or "gawk" elsewhere.
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awk=${AWK:-awk}
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# Does this awk have a "toupper" function?
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have_toupper=`$awk 'BEGIN { print toupper("true"); exit; }' 2>/dev/null`
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# If this awk does not define "toupper" then define our own.
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if [ "$have_toupper" = TRUE ] ; then
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# Used awk (GNU awk or nawk) provides it
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toupper=
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else
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# Provide our own toupper()
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toupper='
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function toupper(str) {
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_toupper_cmd = "echo "str" |tr a-z A-Z"
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_toupper_cmd | getline _toupper_str;
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close(_toupper_cmd);
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return _toupper_str;
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}'
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fi
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# before handing it off to awk, make a few adjustments:
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# (1) insert spaces around {, }, (, ), *, and commas.
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# (2) get rid of any and all dollar signs (so that rcs id use safe)
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#
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# The awk script will deal with blank lines and lines that
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# start with the comment character (';').
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sed -e '
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s/\$//g
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:join
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/\\$/{a\
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N
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s/\\\n//
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b join
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}
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2,${
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/^#/!s/\([{}()*,]\)/ \1 /g
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}
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' < $2 | $awk "
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$toupper
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BEGIN {
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# Create a NetBSD tag that does not get expanded when checking
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# this script out of CVS. (This part of the awk script is in a
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# shell double-quoted string, so the backslashes are eaten by
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# the shell.)
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tag = \"\$\" \"NetBSD\" \"\$\"
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# to allow nested #if/#else/#endif sets
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savedepth = 0
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# to track already processed syscalls
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sysnames = \"$sysnames\"
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sysprotos = \"$sysprotos\"
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sysnumhdr = \"$sysnumhdr\"
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sysarghdr = \"$sysarghdr\"
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rumpcalls = \"$rumpcalls\"
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rumpcallshdr = \"$rumpcallshdr\"
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switchname = \"$switchname\"
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namesname = \"$namesname\"
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constprefix = \"$constprefix\"
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registertype = \"$registertype\"
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sysalign=\"$sysalign\"
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if (!registertype) {
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registertype = \"register_t\"
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}
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nsysent = \"$nsysent\"
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sysdcl = \"$sysdcl\"
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syscompat_pref = \"$syscompat_pref\"
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sysent = \"$sysent\"
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sysnamesbottom = \"$sysnamesbottom\"
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sys_nosys = \"$sys_nosys\"
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maxsysargs = \"$maxsysargs\"
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infile = \"$2\"
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compatopts = \"$compatopts\"
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"'
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printf "/* %s */\n\n", tag > sysdcl
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printf "/*\n * System call switch table.\n *\n" > sysdcl
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printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysdcl
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ncompat = split(compatopts,compat)
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for (i = 1; i <= ncompat; i++) {
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compat_upper[i] = toupper(compat[i])
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printf "\n#ifdef %s\n", compat_upper[i] > sysent
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printf "#define %s(func) __CONCAT(%s_,func)\n", compat[i], \
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compat[i] > sysent
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printf "#else\n" > sysent
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printf "#define %s(func) %s\n", compat[i], sys_nosys > sysent
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printf "#endif\n" > sysent
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}
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printf "\n#define\ts(type)\tsizeof(type)\n" > sysent
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printf "#define\tn(type)\t(sizeof(type)/sizeof (%s))\n", registertype > sysent
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printf "#define\tns(type)\tn(type), s(type)\n\n", registertype > sysent
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printf "struct sysent %s[] = {\n",switchname > sysent
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printf "/* %s */\n\n", tag > sysnames
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printf "/*\n * System call names.\n *\n" > sysnames
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printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
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printf "\n/*\n * System call prototypes.\n */\n\n" > sysprotos
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printf "/* %s */\n\n", tag > sysnumhdr
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printf "/*\n * System call numbers.\n *\n" > sysnumhdr
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printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnumhdr
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printf "/* %s */\n\n", tag > sysarghdr
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printf "/*\n * System call argument lists.\n *\n" > sysarghdr
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printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarghdr
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printf "/* %s */\n\n", tag > rumpcalls
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printf "/*\n * System call marshalling for rump.\n *\n" > rumpcalls
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printf " * DO NOT EDIT-- this file is automatically generated.\n" > rumpcalls
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printf "/* %s */\n\n", tag > rumpcallshdr
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printf "/*\n * System call protos in rump namespace.\n *\n" > rumpcallshdr
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printf " * DO NOT EDIT-- this file is automatically generated.\n" > rumpcallshdr
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}
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NR == 1 {
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sub(/ $/, "")
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printf " * created from%s\n */\n\n", $0 > sysdcl
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printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"%s\");\n\n", tag > sysdcl
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printf " * created from%s\n */\n\n", $0 > sysnames
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printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"%s\");\n\n", tag > sysnames
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printf " * created from%s\n */\n\n", $0 > rumpcalls
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printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"%s\");\n\n", tag > rumpcalls
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printf "#include <sys/types.h>\n" > rumpcalls
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printf "#include <sys/param.h>\n" > rumpcalls
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printf "#include <sys/proc.h>\n" > rumpcalls
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printf "#include <sys/syscallargs.h>\n" > rumpcalls
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printf "#include <rump/rump_syscalls.h>\n" > rumpcalls
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printf "#include \"rump_private.h\"\n\n" > rumpcalls
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printf "#if\tBYTE_ORDER == BIG_ENDIAN\n" > rumpcalls
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printf "#define SPARG(p,k)\t((p)->k.be.datum)\n" > rumpcalls
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printf "#else /* LITTLE_ENDIAN, I hope dearly */\n" > rumpcalls
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printf "#define SPARG(p,k)\t((p)->k.le.datum)\n" > rumpcalls
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printf "#endif\n\n" > rumpcalls
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printf "int rump_enosys(void);\n" > rumpcalls
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printf "int\nrump_enosys()\n{\n\n\treturn ENOSYS;\n}\n" > rumpcalls
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# System call names are included by userland (kdump(1)), so
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# hide the include files from it.
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printf "#if defined(_KERNEL_OPT)\n" > sysnames
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printf "#endif /* _KERNEL_OPT */\n\n" > sysnamesbottom
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printf "const char *const %s[] = {\n",namesname > sysnamesbottom
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printf " * created from%s\n */\n\n", $0 > sysnumhdr
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printf " * created from%s\n */\n\n", $0 > sysarghdr
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printf " * created from%s\n */\n\n", $0 > rumpcallshdr
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printf "#ifndef _" constprefix "SYSCALL_H_\n" > sysnumhdr
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printf "#define _" constprefix "SYSCALL_H_\n\n" > sysnumhdr
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printf "#ifndef _" constprefix "SYSCALLARGS_H_\n" > sysarghdr
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printf "#define _" constprefix "SYSCALLARGS_H_\n\n" > sysarghdr
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# Write max number of system call arguments to both headers
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printf("#define\t%sMAXSYSARGS\t%d\n\n", constprefix, maxsysargs) \
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> sysnumhdr
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printf("#define\t%sMAXSYSARGS\t%d\n\n", constprefix, maxsysargs) \
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> sysarghdr
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printf "#undef\tsyscallarg\n" > sysarghdr
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printf "#define\tsyscallarg(x)\t\t\t\t\t\t\t\\\n" > sysarghdr
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printf "\tunion {\t\t\t\t\t\t\t\t\\\n" > sysarghdr
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printf "\t\t%s pad;\t\t\t\t\t\t\\\n", registertype > sysarghdr
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printf "\t\tstruct { x datum; } le;\t\t\t\t\t\\\n" > sysarghdr
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printf "\t\tstruct { /* LINTED zero array dimension */\t\t\\\n" \
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> sysarghdr
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printf "\t\t\tint8_t pad[ /* CONSTCOND */\t\t\t\\\n" > sysarghdr
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printf "\t\t\t\t(sizeof (%s) < sizeof (x))\t\\\n", \
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registertype > sysarghdr
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printf "\t\t\t\t? 0\t\t\t\t\t\\\n" > sysarghdr
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printf "\t\t\t\t: sizeof (%s) - sizeof (x)];\t\\\n", \
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registertype > sysarghdr
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printf "\t\t\tx datum;\t\t\t\t\t\\\n" > sysarghdr
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printf "\t\t} be;\t\t\t\t\t\t\t\\\n" > sysarghdr
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printf "\t}\n" > sysarghdr
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printf("\n#undef check_syscall_args\n") >sysarghdr
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printf("#define check_syscall_args(call) \\\n" \
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"\ttypedef char call##_check_args" \
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"[sizeof (struct call##_args) \\\n" \
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"\t\t<= %sMAXSYSARGS * sizeof (%s) ? 1 : -1];\n", \
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constprefix, registertype) >sysarghdr
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next
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}
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NF == 0 || $1 ~ /^;/ {
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next
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}
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$0 ~ /^%%$/ {
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intable = 1
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next
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}
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$1 ~ /^#[ ]*include/ {
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print > sysdcl
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print > sysnames
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next
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}
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$1 ~ /^#/ && !intable {
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print > sysdcl
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print > sysnames
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next
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}
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$1 ~ /^#/ && intable {
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if ($1 ~ /^#[ ]*if/) {
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savedepth++
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savesyscall[savedepth] = syscall
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}
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if ($1 ~ /^#[ ]*else/) {
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if (savedepth <= 0) {
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printf("%s: line %d: unbalanced #else\n", \
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infile, NR)
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exit 1
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}
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syscall = savesyscall[savedepth]
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}
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if ($1 ~ /^#[ ]*endif/) {
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if (savedepth <= 0) {
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printf("%s: line %d: unbalanced #endif\n", \
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infile, NR)
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exit 1
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}
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savedepth--
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}
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print > sysent
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print > sysarghdr
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print > sysnumhdr
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print > sysprotos
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print > sysnamesbottom
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next
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}
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syscall != $1 {
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printf "%s: line %d: syscall number out of sync at %d\n", \
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infile, NR, syscall
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printf "line is:\n"
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print
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exit 1
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}
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function parserr(was, wanted) {
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printf "%s: line %d: unexpected %s (expected %s)\n", \
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infile, NR, was, wanted
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printf "line is:\n"
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print
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exit 1
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}
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function parseline() {
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f=3 # toss number and type
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if ($2 == "INDIR")
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sycall_flags="SYCALL_INDIRECT"
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else
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sycall_flags="0"
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if ($NF != "}") {
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funcalias=$NF
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end=NF-1
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} else {
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funcalias=""
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end=NF
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}
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if ($f == "INDIR") { # allow for "NOARG INDIR"
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sycall_flags = "SYCALL_INDIRECT | " sycall_flags
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f++
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}
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if ($f == "MODULAR") { # registered at runtime
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modular = 1
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f++
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} else {
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modular = 0;
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}
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if ($f == "RUMP") {
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rumpable = 1
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f++
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} else {
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rumpable = 0
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}
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if ($f ~ /^[a-z0-9_]*$/) { # allow syscall alias
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funcalias=$f
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f++
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}
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if ($f != "{")
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parserr($f, "{")
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f++
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if ($end != "}")
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parserr($end, "}")
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end--
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if ($end != ";")
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parserr($end, ";")
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end--
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if ($end != ")")
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parserr($end, ")")
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end--
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returntype = oldf = "";
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do {
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if (returntype != "" && oldf != "*")
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returntype = returntype" ";
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returntype = returntype$f;
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oldf = $f;
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f++
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} while (f < (end - 1) && $(f+1) != "(");
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if (f == (end - 1)) {
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parserr($f, "function argument definition (maybe \"(\"?)");
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}
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funcname=$f
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if (funcalias == "") {
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funcalias=funcname
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sub(/^([^_]+_)*sys_/, "", funcalias)
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}
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f++
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if ($f != "(")
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parserr($f, ")")
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f++
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argc=0;
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argalign=0;
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if (f == end) {
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if ($f != "void")
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parserr($f, "argument definition")
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isvarargs = 0;
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varargc = 0;
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return
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}
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# some system calls (open() and fcntl()) can accept a variable
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# number of arguments. If syscalls accept a variable number of
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# arguments, they must still have arguments specified for
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# the remaining argument "positions," because of the way the
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# kernel system call argument handling works.
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#
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# Indirect system calls, e.g. syscall(), are exceptions to this
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# rule, since they are handled entirely by machine-dependent code
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# and do not need argument structures built.
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isvarargs = 0;
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while (f <= end) {
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if ($f == "...") {
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f++;
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isvarargs = 1;
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varargc = argc;
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continue;
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}
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argc++
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argtype[argc]=""
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oldf=""
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while (f < end && $(f+1) != ",") {
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if (argtype[argc] != "" && oldf != "*")
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argtype[argc] = argtype[argc]" ";
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argtype[argc] = argtype[argc]$f;
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oldf = $f;
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f++
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}
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if (argtype[argc] == "")
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parserr($f, "argument definition")
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if (argtype[argc] == "off_t") {
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if ((argalign % 2) != 0 && sysalign &&
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funcname != "sys_posix_fadvise") # XXX for now
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parserr($f, "a padding argument")
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} else {
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argalign++;
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}
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argname[argc]=$f;
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f += 2; # skip name, and any comma
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}
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# must see another argument after varargs notice.
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if (isvarargs) {
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if (argc == varargc)
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parserr($f, "argument definition")
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} else
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varargc = argc;
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}
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function printproto(wrap) {
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printf("/* syscall: \"%s%s\" ret: \"%s\" args:", wrap, funcalias,
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returntype) > sysnumhdr
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for (i = 1; i <= varargc; i++)
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printf(" \"%s\"", argtype[i]) > sysnumhdr
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if (isvarargs)
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printf(" \"...\"") > sysnumhdr
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printf(" */\n") > sysnumhdr
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printf("#define\t%s%s%s\t%d\n\n", constprefix, wrap, funcalias,
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syscall) > sysnumhdr
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# rumpalooza
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if (!rumpable)
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return
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if (wrap == "")
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wrap = "sys"
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printf("%s rump_%s_%s(", returntype, wrap, funcalias) > rumpcallshdr
|
|
for (i = 1; i <= argc; i++)
|
|
printf("%s, ", argtype[i]) > rumpcallshdr
|
|
printf("int *);\n") > rumpcallshdr
|
|
}
|
|
|
|
function putent(type, compatwrap) {
|
|
# output syscall declaration for switch table.
|
|
if (compatwrap == "")
|
|
compatwrap_ = ""
|
|
else
|
|
compatwrap_ = compatwrap "_"
|
|
if (argc == 0)
|
|
arg_type = "void";
|
|
else {
|
|
arg_type = "struct " compatwrap_ funcname "_args";
|
|
}
|
|
proto = "int\t" compatwrap_ funcname "(struct lwp *, const " \
|
|
arg_type " *, register_t *);\n"
|
|
if (sysmap[proto] != 1) {
|
|
sysmap[proto] = 1;
|
|
print proto > sysprotos;
|
|
}
|
|
|
|
# output syscall switch entry
|
|
printf("\t{ ") > sysent
|
|
if (argc == 0) {
|
|
printf("0, 0, ") > sysent
|
|
} else {
|
|
printf("ns(struct %s%s_args), ", compatwrap_, funcname) > sysent
|
|
}
|
|
if (modular)
|
|
wfn = "(sy_call_t *)sys_nomodule";
|
|
else if (compatwrap == "")
|
|
wfn = "(sy_call_t *)" funcname;
|
|
else
|
|
wfn = "(sy_call_t *)" compatwrap "(" funcname ")";
|
|
printf("%s,\n\t %s },", sycall_flags, wfn) > sysent
|
|
for (i = 0; i < (33 - length(wfn)) / 8; i++)
|
|
printf("\t") > sysent
|
|
printf("/* %d = %s%s */\n", syscall, compatwrap_, funcalias) > sysent
|
|
|
|
# output syscall name for names table
|
|
printf("\t/* %3d */\t\"%s%s\",\n", syscall, compatwrap_, funcalias) \
|
|
> sysnamesbottom
|
|
|
|
# output syscall number of header, if appropriate
|
|
if (type == "STD" || type == "NOARGS" || type == "INDIR") {
|
|
# output a prototype, to be used to generate lint stubs in
|
|
# libc.
|
|
printproto("")
|
|
} else if (type == "COMPAT") {
|
|
# Just define the syscall number with a comment. These
|
|
# may be used by compatibility stubs in libc.
|
|
printproto(compatwrap_)
|
|
}
|
|
|
|
# output syscall argument structure, if it has arguments
|
|
if (argc != 0) {
|
|
printf("\nstruct %s%s_args", compatwrap_, funcname) > sysarghdr
|
|
if (type != "NOARGS") {
|
|
print " {" >sysarghdr;
|
|
for (i = 1; i <= argc; i++)
|
|
printf("\tsyscallarg(%s) %s;\n", argtype[i],
|
|
argname[i]) > sysarghdr
|
|
printf "}" >sysarghdr;
|
|
}
|
|
printf(";\n") > sysarghdr
|
|
if (type != "NOARGS" && type != "INDIR") {
|
|
printf("check_syscall_args(%s%s)\n", compatwrap_,
|
|
funcname) >sysarghdr
|
|
}
|
|
}
|
|
|
|
# output rump marshalling code if necessary
|
|
if (!rumpable)
|
|
return
|
|
|
|
printf("\n%s\nrump_%s(", returntype, funcname) > rumpcalls
|
|
for (i = 1; i <= argc; i++) {
|
|
printf("%s %s, ", argtype[i], argname[i]) > rumpcalls
|
|
}
|
|
printf("int *error)\n") > rumpcalls
|
|
printf("{\n\tregister_t retval = 0;\n") > rumpcalls
|
|
argarg = "NULL"
|
|
if (argc) {
|
|
argarg = "&arg"
|
|
printf("\tstruct %s%s_args arg;\n\n", funcname, compatwrap_) \
|
|
> rumpcalls
|
|
for (i = 1; i <= argc; i++) {
|
|
printf("\tSPARG(&arg, %s) = %s;\n", \
|
|
argname[i], argname[i]) > rumpcalls
|
|
}
|
|
printf("\n") > rumpcalls
|
|
} else {
|
|
printf("\n") > rumpcalls
|
|
}
|
|
printf("\t*error = %s(curlwp, %s, &retval);\n", funcname, argarg) \
|
|
> rumpcalls
|
|
printf("\tif (*error)\n\t\tretval = -1;\n") > rumpcalls
|
|
if (returntype != "void")
|
|
printf("\treturn retval;\n") > rumpcalls
|
|
printf("}\n") > rumpcalls
|
|
printf("__weak_alias(%s,rump_enosys);\n", funcname) > rumpcalls
|
|
}
|
|
$2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "INDIR" {
|
|
parseline()
|
|
putent($2, "")
|
|
syscall++
|
|
next
|
|
}
|
|
$2 == "OBSOL" || $2 == "UNIMPL" || $2 == "EXCL" || $2 == "IGNORED" {
|
|
if ($2 == "OBSOL")
|
|
comment="obsolete"
|
|
else if ($2 == "EXCL")
|
|
comment="excluded"
|
|
else if ($2 == "IGNORED")
|
|
comment="ignored"
|
|
else
|
|
comment="unimplemented"
|
|
for (i = 3; i <= NF; i++)
|
|
comment=comment " " $i
|
|
|
|
if ($2 == "IGNORED")
|
|
sys_stub = "(sy_call_t *)nullop";
|
|
else
|
|
sys_stub = sys_nosys;
|
|
|
|
printf("\t{ 0, 0, 0,\n\t %s },\t\t\t/* %d = %s */\n", \
|
|
sys_stub, syscall, comment) > sysent
|
|
printf("\t/* %3d */\t\"#%d (%s)\",\n", syscall, syscall, comment) \
|
|
> sysnamesbottom
|
|
if ($2 != "UNIMPL")
|
|
printf("\t\t\t\t/* %d is %s */\n", syscall, comment) > sysnumhdr
|
|
syscall++
|
|
next
|
|
}
|
|
{
|
|
for (i = 1; i <= ncompat; i++) {
|
|
if ($2 == compat_upper[i]) {
|
|
parseline();
|
|
putent("COMPAT", compat[i])
|
|
syscall++
|
|
next
|
|
}
|
|
}
|
|
printf("%s: line %d: unrecognized keyword %s\n", infile, NR, $2)
|
|
exit 1
|
|
}
|
|
END {
|
|
maxsyscall = syscall
|
|
if (nsysent) {
|
|
if (syscall > nsysent) {
|
|
printf("%s: line %d: too many syscalls [%d > %d]\n", infile, NR, syscall, nsysent)
|
|
exit 1
|
|
}
|
|
while (syscall < nsysent) {
|
|
printf("\t{ 0, 0, 0,\n\t %s },\t\t\t/* %d = filler */\n", \
|
|
sys_nosys, syscall) > sysent
|
|
syscall++
|
|
}
|
|
}
|
|
printf("};\n\n") > sysent
|
|
printf("};\n") > sysnamesbottom
|
|
printf("#define\t%sMAXSYSCALL\t%d\n", constprefix, maxsyscall) > sysnumhdr
|
|
if (nsysent)
|
|
printf("#define\t%sNSYSENT\t%d\n", constprefix, nsysent) > sysnumhdr
|
|
} '
|
|
|
|
cat $sysprotos >> $sysarghdr
|
|
echo "#endif /* _${constprefix}SYSCALL_H_ */" >> $sysnumhdr
|
|
echo "#endif /* _${constprefix}SYSCALLARGS_H_ */" >> $sysarghdr
|
|
cat $sysdcl $sysent > $syssw
|
|
cat $sysnamesbottom >> $sysnames
|
|
|
|
#chmod 444 $sysnames $sysnumhdr $syssw
|