827 lines
26 KiB
Bash
827 lines
26 KiB
Bash
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#! /bin/sh -
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# @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93
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# $FreeBSD: src/sys/kern/makesyscalls.sh,v 1.60 2003/04/01 01:12:24 jeff Exp $
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#
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# Copyright (c) 2004-2008 Apple Inc. All rights reserved.
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#
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# @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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#
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# This file contains Original Code and/or Modifications of Original Code
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# as defined in and that are subject to the Apple Public Source License
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# Version 2.0 (the 'License'). You may not use this file except in
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# compliance with the License. Please obtain a copy of the License at
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# http://www.opensource.apple.com/apsl/ and read it before using this
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# file.
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#
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# The Original Code and all software distributed under the License are
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# distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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# EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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# INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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# Please see the License for the specific language governing rights and
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# limitations under the License.
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#
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# @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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#
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set -e
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input_file="" # first argument
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# output type:
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output_syscallnamesfile=0
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output_sysprotofile=0
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output_syshdrfile=0
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output_syscalltablefile=0
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output_auditevfile=0
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output_tracecodes=0
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output_systrace=0
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use_stdout=0
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# output files:
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syscallnamesfile="syscalls.c"
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sysprotofile="sysproto.h"
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sysproto_h=_SYS_SYSPROTO_H_
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syshdrfile="syscall.h"
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syscall_h=_SYS_SYSCALL_H_
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syscalltablefile="init_sysent.c"
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auditevfile="audit_kevents.c"
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syscallprefix="SYS_"
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switchname="sysent"
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namesname="syscallnames"
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tracecodename="syscall.codes"
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systraceargsfile="systrace_args.c"
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# tmp files:
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syslegal="sysent.syslegal.$$"
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sysent="sysent.switch.$$"
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sysinc="sysinc.switch.$$"
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sysarg="sysarg.switch.$$"
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sysprotoend="sysprotoend.$$"
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syscallnamestempfile="syscallnamesfile.$$"
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syshdrtempfile="syshdrtempfile.$$"
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audittempfile="audittempfile.$$"
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tracecodetempfile="tracecodetempfile.$$"
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systraceargstempfile="systraceargstempfile.$$"
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systraceargdesctempfile="systraceargdesctempfile.$$"
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systracerettempfile="systracerettempfile.$$"
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trap "rm $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile $audittempfile $tracecodetempfile $systraceargstempfile $systraceargdesctempfile $systracerettempfile" 0
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touch $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile $audittempfile $tracecodetempfile $systraceargstempfile $systraceargdesctempfile $systracerettempfile
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case $# in
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0)
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echo "usage: $0 input-file [<names|proto|header|table|audit|trace> [<config-file>]]" 1>&2
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exit 1
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;;
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esac
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input_file="$1"
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shift
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if [ -n "$1" ]; then
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case $1 in
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names)
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output_syscallnamesfile=1
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;;
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proto)
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output_sysprotofile=1
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;;
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header)
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output_syshdrfile=1
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;;
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table)
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output_syscalltablefile=1
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;;
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audit)
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output_auditevfile=1
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;;
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systrace)
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output_systrace=1
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;;
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trace)
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output_tracecodes=1
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use_stdout=1
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;;
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esac
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shift;
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else
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output_syscallnamesfile=1
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output_sysprotofile=1
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output_syshdrfile=1
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output_syscalltablefile=1
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output_auditevfile=1
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output_tracecodes=1
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fi
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if [ -n "$1" -a -f "$1" ]; then
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. $1
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fi
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sed -e '
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s/\$//g
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:join
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/\\$/{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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' < "$input_file" | awk "
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BEGIN {
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syslegal = \"$syslegal\"
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sysprotofile = \"$sysprotofile\"
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sysprotoend = \"$sysprotoend\"
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sysproto_h = \"$sysproto_h\"
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syscall_h = \"$syscall_h\"
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sysent = \"$sysent\"
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syscalltablefile = \"$syscalltablefile\"
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sysinc = \"$sysinc\"
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sysarg = \"$sysarg\"
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syscallnamesfile = \"$syscallnamesfile\"
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syscallnamestempfile = \"$syscallnamestempfile\"
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syshdrfile = \"$syshdrfile\"
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syshdrtempfile = \"$syshdrtempfile\"
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systraceargstempfile = \"$systraceargstempfile\"
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systraceargdesctempfile = \"$systraceargdesctempfile\"
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systracerettempfile = \"$systracerettempfile\"
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audittempfile = \"$audittempfile\"
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tracecodetempfile = \"$tracecodetempfile\"
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syscallprefix = \"$syscallprefix\"
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switchname = \"$switchname\"
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namesname = \"$namesname\"
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infile = \"$input_file\"
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infilepretty = \"${input_file#"$TARGET"}\"
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"'
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printf "/*\n" > syslegal
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printf " * Copyright (c) 2004-2008 Apple Inc. All rights reserved.\n" > syslegal
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printf " * \n" > syslegal
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printf " * @APPLE_OSREFERENCE_LICENSE_HEADER_START@\n" > syslegal
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printf " * \n" > syslegal
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printf " * This file contains Original Code and/or Modifications of Original Code\n" > syslegal
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printf " * as defined in and that are subject to the Apple Public Source License\n" > syslegal
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printf " * Version 2.0 (the \047License\047). You may not use this file except in\n" > syslegal
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printf " * compliance with the License. The rights granted to you under the License\n" > syslegal
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printf " * may not be used to create, or enable the creation or redistribution of,\n" > syslegal
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printf " * unlawful or unlicensed copies of an Apple operating system, or to\n" > syslegal
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printf " * circumvent, violate, or enable the circumvention or violation of, any\n" > syslegal
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printf " * terms of an Apple operating system software license agreement.\n" > syslegal
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printf " * \n" > syslegal
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printf " * Please obtain a copy of the License at\n" > syslegal
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printf " * http://www.opensource.apple.com/apsl/ and read it before using this file.\n" > syslegal
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printf " * \n" > syslegal
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printf " * The Original Code and all software distributed under the License are\n" > syslegal
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printf " * distributed on an \047AS IS\047 basis, WITHOUT WARRANTY OF ANY KIND, EITHER\n" > syslegal
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printf " * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,\n" > syslegal
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printf " * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,\n" > syslegal
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printf " * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.\n" > syslegal
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printf " * Please see the License for the specific language governing rights and\n" > syslegal
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printf " * limitations under the License.\n" > syslegal
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printf " * \n" > syslegal
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printf " * @APPLE_OSREFERENCE_LICENSE_HEADER_END@\n" > syslegal
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printf " * \n" > syslegal
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printf " * \n" > syslegal
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printf " * System call switch table.\n *\n" > syslegal
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printf " * DO NOT EDIT-- this file is automatically generated.\n" > syslegal
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printf " * created from %s\n */\n\n", infilepretty > syslegal
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}
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NR == 1 {
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printf "\n/* The casts are bogus but will do for now. */\n" > sysent
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printf "__private_extern__ const struct sysent %s[] = {\n",switchname > sysent
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printf "#ifndef %s\n", sysproto_h > sysarg
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printf "#define\t%s\n\n", sysproto_h > sysarg
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printf "#ifndef %s\n", syscall_h > syshdrtempfile
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printf "#define\t%s\n\n", syscall_h > syshdrtempfile
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printf "#include <sys/appleapiopts.h>\n" > syshdrtempfile
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printf "#ifdef __APPLE_API_PRIVATE\n" > syshdrtempfile
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printf "#include <sys/appleapiopts.h>\n" > sysarg
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printf "#include <sys/cdefs.h>\n" > sysarg
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printf "#include <sys/mount_internal.h>\n" > sysarg
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printf "#include <sys/types.h>\n" > sysarg
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printf "#include <sys/sem_internal.h>\n" > sysarg
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printf "#include <sys/semaphore.h>\n" > sysarg
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printf "#include <sys/wait.h>\n" > sysarg
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printf "#include <mach/shared_region.h>\n" > sysarg
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printf "\n#ifdef KERNEL\n" > sysarg
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printf "#ifdef __APPLE_API_PRIVATE\n" > sysarg
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printf "/*\n" > sysarg
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printf " * The kernel may support multiple userspace ABIs, and must use\n" > sysarg
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printf " * argument structures with elements large enough for any of them.\n" > sysarg
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printf "*/\n" > sysarg
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printf "\n" > sysarg
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printf "#if CONFIG_REQUIRES_U32_MUNGING\n" > sysarg
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printf "#define\tPAD_(t)\t(sizeof(uint64_t) <= sizeof(t) \\\n " > sysarg
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printf "\t\t? 0 : sizeof(uint64_t) - sizeof(t))\n" > sysarg
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printf "#else\n" > sysarg
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printf "#define\tPAD_(t)\t(sizeof(uint32_t) <= sizeof(t) \\\n" > sysarg
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printf " ? 0 : sizeof(uint32_t) - sizeof(t))\n" > sysarg
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printf "#endif\n" > sysarg
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printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
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printf "#define\tPADL_(t)\t0\n" > sysarg
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printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
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printf "#else\n" > sysarg
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printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
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printf "#define\tPADR_(t)\t0\n" > sysarg
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printf "#endif\n" > sysarg
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printf "\n__BEGIN_DECLS\n" > sysarg
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printf "#include <sys/munge.h>\n" > sysarg
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printf "\n" > sysarg
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printf "const char *%s[] = {\n", namesname > syscallnamestempfile
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printf "#include <sys/param.h>\n" > audittempfile
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printf "#include <sys/types.h>\n\n" > audittempfile
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printf "#include <bsm/audit.h>\n" > audittempfile
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printf "#include <bsm/audit_kevents.h>\n\n" > audittempfile
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printf "#if CONFIG_AUDIT\n\n" > audittempfile
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printf "au_event_t sys_au_event[] = {\n" > audittempfile
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printf "/*\n * System call argument to DTrace register array conversion.\n */\n" > systraceargstempfile
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printf "#include <sys/systrace_args.h>\n" > systraceargstempfile
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printf "void\nsystrace_args(int sysnum, void *params, uint64_t *uarg)\n{\n" > systraceargstempfile
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printf "\tint64_t *iarg = (int64_t *) uarg;\n" > systraceargstempfile
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printf "\tswitch (sysnum) {\n" > systraceargstempfile
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printf "void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceargdesctempfile
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printf "\tswitch (sysnum) {\n" > systraceargdesctempfile
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printf "void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracerettempfile
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printf "\tswitch (sysnum) {\n" > systracerettempfile
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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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$1 ~ /^#[ ]*include/ {
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print > sysinc
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next
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}
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$1 ~ /^#[ ]*if/ {
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print > sysent
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print > sysarg
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print > syscallnamestempfile
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print > sysprotoend
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print > audittempfile
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print > systraceargstempfile
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print > systraceargdesctempfile
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print > systracerettempfile
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savesyscall = syscall_num
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skip_for_header = 0
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next
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}
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$1 ~ /^#[ ]*else/ {
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print > sysent
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print > sysarg
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print > syscallnamestempfile
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print > sysprotoend
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print > audittempfile
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print > systraceargstempfile
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print > systraceargdesctempfile
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print > systracerettempfile
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syscall_num = savesyscall
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skip_for_header = 1
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next
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}
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$1 ~ /^#/ {
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print > sysent
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print > sysarg
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print > syscallnamestempfile
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print > sysprotoend
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print > audittempfile
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print > systraceargstempfile
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print > systraceargdesctempfile
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print > systracerettempfile
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skip_for_header = 0
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next
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}
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syscall_num != $1 {
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printf "%s: line %d: syscall number out of sync at %d\n",
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infile, NR, syscall_num
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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 align_comment(linesize, location, thefile) {
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printf(" ") > thefile
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while (linesize < location) {
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printf(" ") > thefile
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linesize++
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}
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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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exit 1
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}
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function parseline() {
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funcname = ""
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current_field = 4 # skip number, audit event, type
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args_start = 0
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args_end = 0
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comments_start = 0
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comments_end = 0
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argc = 0
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argssize = "0"
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additional_comments = " "
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obs_comments = "_"
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# find start and end of call name and arguments
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||
|
|
if ($current_field != "{")
|
||
|
|
parserr($current_field, "{")
|
||
|
|
args_start = current_field
|
||
|
|
current_field++
|
||
|
|
while (current_field <= NF) {
|
||
|
|
if ($current_field == "}") {
|
||
|
|
args_end = current_field
|
||
|
|
break
|
||
|
|
}
|
||
|
|
current_field++
|
||
|
|
}
|
||
|
|
if (args_end == 0) {
|
||
|
|
printf "%s: line %d: invalid call name and arguments\n",
|
||
|
|
infile, NR
|
||
|
|
exit 1
|
||
|
|
}
|
||
|
|
|
||
|
|
# find start and end of optional comments
|
||
|
|
current_field++
|
||
|
|
if (current_field < NF && $current_field == "{") {
|
||
|
|
comments_start = current_field
|
||
|
|
while (current_field <= NF) {
|
||
|
|
if ($current_field == "}") {
|
||
|
|
comments_end = current_field
|
||
|
|
break
|
||
|
|
}
|
||
|
|
current_field++
|
||
|
|
}
|
||
|
|
if (comments_end == 0) {
|
||
|
|
printf "%s: line %d: invalid comments \n",
|
||
|
|
infile, NR
|
||
|
|
exit 1
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($args_end != "}")
|
||
|
|
parserr($args_end, "}")
|
||
|
|
args_end--
|
||
|
|
if ($args_end != ";")
|
||
|
|
parserr($args_end, ";")
|
||
|
|
args_end--
|
||
|
|
|
||
|
|
# skip any NO_SYSCALL_STUB qualifier
|
||
|
|
if ($args_end == "NO_SYSCALL_STUB")
|
||
|
|
args_end--
|
||
|
|
|
||
|
|
if ($args_end != ")")
|
||
|
|
parserr($args_end, ")")
|
||
|
|
args_end--
|
||
|
|
|
||
|
|
# extract additional comments
|
||
|
|
if (comments_start != 0) {
|
||
|
|
current_field = comments_start + 1
|
||
|
|
while (current_field < comments_end) {
|
||
|
|
additional_comments = additional_comments $current_field " "
|
||
|
|
obs_comments = obs_comments $current_field "_"
|
||
|
|
current_field++
|
||
|
|
}
|
||
|
|
}
|
||
|
|
sub(/old/, "obs", obs_comments)
|
||
|
|
obs_comments = substr(obs_comments, 1, length(obs_comments)-1)
|
||
|
|
if (obs_comments == "_") {
|
||
|
|
obs_comments = ""
|
||
|
|
}
|
||
|
|
|
||
|
|
# get function return type
|
||
|
|
current_field = args_start + 1
|
||
|
|
returntype = $current_field
|
||
|
|
|
||
|
|
# get function name and set up to get arguments
|
||
|
|
current_field++
|
||
|
|
funcname = $current_field
|
||
|
|
argalias = funcname "_args"
|
||
|
|
if (substr(argalias, 1, 4) == "sys_") {
|
||
|
|
argalias = substr(argalias, 5)
|
||
|
|
}
|
||
|
|
current_field++ # bump past function name
|
||
|
|
|
||
|
|
if ($current_field != "(")
|
||
|
|
parserr($current_field, "(")
|
||
|
|
current_field++
|
||
|
|
|
||
|
|
if (current_field == args_end) {
|
||
|
|
if ($current_field != "void")
|
||
|
|
parserr($current_field, "argument definition")
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
# extract argument types and names
|
||
|
|
while (current_field <= args_end) {
|
||
|
|
argc++
|
||
|
|
argtype[argc]=""
|
||
|
|
ext_argtype[argc]=""
|
||
|
|
oldf=""
|
||
|
|
while (current_field < args_end && $(current_field + 1) != ",") {
|
||
|
|
if (argtype[argc] != "" && oldf != "*") {
|
||
|
|
argtype[argc] = argtype[argc] " ";
|
||
|
|
}
|
||
|
|
argtype[argc] = argtype[argc] $current_field;
|
||
|
|
ext_argtype[argc] = argtype[argc];
|
||
|
|
oldf = $current_field;
|
||
|
|
current_field++
|
||
|
|
}
|
||
|
|
if (argtype[argc] == "")
|
||
|
|
parserr($current_field, "argument definition")
|
||
|
|
argname[argc] = $current_field;
|
||
|
|
current_field += 2; # skip name, and any comma
|
||
|
|
}
|
||
|
|
if (argc > 8) {
|
||
|
|
printf "%s: line %d: too many arguments!\n", infile, NR
|
||
|
|
exit 1
|
||
|
|
}
|
||
|
|
if (argc != 0)
|
||
|
|
argssize = "AC(" argalias ")"
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
auditev = $2;
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
add_sysent_entry = 1
|
||
|
|
add_sysnames_entry = 1
|
||
|
|
add_sysheader_entry = 1
|
||
|
|
add_sysproto_entry = 1
|
||
|
|
|
||
|
|
|
||
|
|
if ($3 != "ALL") {
|
||
|
|
files_keyword_OK = 0
|
||
|
|
add_sysent_entry = 0
|
||
|
|
add_sysnames_entry = 0
|
||
|
|
add_sysheader_entry = 0
|
||
|
|
add_sysproto_entry = 0
|
||
|
|
|
||
|
|
if (match($3, "[T]") != 0) {
|
||
|
|
add_sysent_entry = 1
|
||
|
|
files_keyword_OK = 1
|
||
|
|
}
|
||
|
|
if (match($3, "[N]") != 0) {
|
||
|
|
add_sysnames_entry = 1
|
||
|
|
files_keyword_OK = 1
|
||
|
|
}
|
||
|
|
if (match($3, "[H]") != 0) {
|
||
|
|
add_sysheader_entry = 1
|
||
|
|
files_keyword_OK = 1
|
||
|
|
}
|
||
|
|
if (match($3, "[P]") != 0) {
|
||
|
|
add_sysproto_entry = 1
|
||
|
|
files_keyword_OK = 1
|
||
|
|
}
|
||
|
|
|
||
|
|
if (files_keyword_OK == 0) {
|
||
|
|
printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2
|
||
|
|
exit 1
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
parseline()
|
||
|
|
|
||
|
|
# output function argument structures to sysproto.h and build the
|
||
|
|
# name of the appropriate argument mungers
|
||
|
|
munge32 = "NULL"
|
||
|
|
size32 = 0
|
||
|
|
|
||
|
|
if ((funcname != "nosys" && funcname != "enosys") || (syscall_num == 0 && funcname == "nosys")) {
|
||
|
|
printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall_num) > systraceargstempfile
|
||
|
|
printf("\t/* %s */\n\tcase %d:\n", funcname, syscall_num) > systraceargdesctempfile
|
||
|
|
printf("\t/* %s */\n\tcase %d:\n", funcname, syscall_num) > systracerettempfile
|
||
|
|
if (argc > 0) {
|
||
|
|
printf("\t\tswitch(ndx) {\n") > systraceargdesctempfile
|
||
|
|
printf("\t\tstruct %s *p = params;\n", argalias) > systraceargstempfile
|
||
|
|
for (i = 1; i <= argc; i++) {
|
||
|
|
arg = argtype[i]
|
||
|
|
sub("__restrict$", "", arg)
|
||
|
|
if (index(arg, "*") > 0)
|
||
|
|
printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systraceargdesctempfile
|
||
|
|
else
|
||
|
|
printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systraceargdesctempfile
|
||
|
|
if (index(arg, "*") > 0 || arg == "caddr_t")
|
||
|
|
printf("\t\tuarg[%d] = (uint64_t) p->%s; /* %s */\n", \
|
||
|
|
i - 1, \
|
||
|
|
argname[i], arg) > systraceargstempfile
|
||
|
|
else if (substr(arg, 1, 1) == "u" || arg == "size_t")
|
||
|
|
printf("\t\tuarg[%d] = (uint64_t) p->%s; /* %s */\n", \
|
||
|
|
i - 1, \
|
||
|
|
argname[i], arg) > systraceargstempfile
|
||
|
|
else
|
||
|
|
printf("\t\tiarg[%d] = (int64_t) p->%s; /* %s */\n", \
|
||
|
|
i - 1, \
|
||
|
|
argname[i], arg) > systraceargstempfile
|
||
|
|
}
|
||
|
|
printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systraceargdesctempfile
|
||
|
|
|
||
|
|
}
|
||
|
|
printf("\t\tbreak;\n\t}\n", argc) > systraceargstempfile
|
||
|
|
printf("\t\tif (ndx == 0 || ndx == 1)\n") > systracerettempfile
|
||
|
|
printf("\t\t\tp = \"%s\";\n", returntype) > systracerettempfile
|
||
|
|
printf("\t\tbreak;\n") > systracerettempfile
|
||
|
|
printf("\t\tbreak;\n") > systraceargdesctempfile
|
||
|
|
if (argc != 0) {
|
||
|
|
if (add_sysproto_entry == 1) {
|
||
|
|
printf("struct %s {\n", argalias) > sysarg
|
||
|
|
}
|
||
|
|
munge32 = "munge_"
|
||
|
|
for (i = 1; i <= argc; i++) {
|
||
|
|
# Build name of argument munger.
|
||
|
|
# We account for all sys call argument types here.
|
||
|
|
# This is where you add any new types. With LP64 support
|
||
|
|
# each argument consumes 64-bits.
|
||
|
|
# see .../xnu/bsd/dev/munge.c for munge argument types.
|
||
|
|
if (argtype[i] == "long") {
|
||
|
|
ext_argtype[i] = "user_long_t";
|
||
|
|
munge32 = munge32 "s"
|
||
|
|
size32 += 4
|
||
|
|
}
|
||
|
|
else if (argtype[i] == "u_long") {
|
||
|
|
ext_argtype[i] = "user_ulong_t";
|
||
|
|
munge32 = munge32 "w"
|
||
|
|
size32 += 4
|
||
|
|
}
|
||
|
|
else if (argtype[i] == "size_t") {
|
||
|
|
ext_argtype[i] = "user_size_t";
|
||
|
|
munge32 = munge32 "w"
|
||
|
|
size32 += 4
|
||
|
|
}
|
||
|
|
else if (argtype[i] == "ssize_t") {
|
||
|
|
ext_argtype[i] = "user_ssize_t";
|
||
|
|
munge32 = munge32 "s"
|
||
|
|
size32 += 4
|
||
|
|
}
|
||
|
|
else if (argtype[i] == "user_ssize_t" || argtype[i] == "user_long_t") {
|
||
|
|
munge32 = munge32 "s"
|
||
|
|
size32 += 4
|
||
|
|
}
|
||
|
|
else if (argtype[i] == "user_addr_t" || argtype[i] == "user_size_t" ||
|
||
|
|
argtype[i] == "user_ulong_t") {
|
||
|
|
munge32 = munge32 "w"
|
||
|
|
size32 += 4
|
||
|
|
}
|
||
|
|
else if (argtype[i] == "caddr_t" || argtype[i] == "semun_t" ||
|
||
|
|
argtype[i] == "uuid_t" || match(argtype[i], "[\*]") != 0) {
|
||
|
|
ext_argtype[i] = "user_addr_t";
|
||
|
|
munge32 = munge32 "w"
|
||
|
|
size32 += 4
|
||
|
|
}
|
||
|
|
else if (argtype[i] == "int" || argtype[i] == "u_int" ||
|
||
|
|
argtype[i] == "uid_t" || argtype[i] == "pid_t" ||
|
||
|
|
argtype[i] == "id_t" || argtype[i] == "idtype_t" ||
|
||
|
|
argtype[i] == "socklen_t" || argtype[i] == "uint32_t" || argtype[i] == "int32_t" ||
|
||
|
|
argtype[i] == "sigset_t" || argtype[i] == "gid_t" || argtype[i] == "unsigned int" ||
|
||
|
|
argtype[i] == "mode_t" || argtype[i] == "key_t" ||
|
||
|
|
argtype[i] == "mach_port_name_t" || argtype[i] == "au_asid_t" ||
|
||
|
|
argtype[i] == "sae_associd_t" || argtype[i] == "sae_connid_t") {
|
||
|
|
munge32 = munge32 "w"
|
||
|
|
size32 += 4
|
||
|
|
}
|
||
|
|
else if (argtype[i] == "off_t" || argtype[i] == "int64_t" || argtype[i] == "uint64_t") {
|
||
|
|
munge32 = munge32 "l"
|
||
|
|
size32 += 8
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
printf "%s: line %d: invalid type \"%s\" \n",
|
||
|
|
infile, NR, argtype[i]
|
||
|
|
printf "You need to add \"%s\" into the type checking code. \n",
|
||
|
|
argtype[i]
|
||
|
|
exit 1
|
||
|
|
}
|
||
|
|
if (add_sysproto_entry == 1) {
|
||
|
|
printf("\tchar %s_l_[PADL_(%s)]; " \
|
||
|
|
"%s %s; char %s_r_[PADR_(%s)];\n",
|
||
|
|
argname[i], ext_argtype[i],
|
||
|
|
ext_argtype[i], argname[i],
|
||
|
|
argname[i], ext_argtype[i]) > sysarg
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (add_sysproto_entry == 1) {
|
||
|
|
printf("};\n") > sysarg
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (add_sysproto_entry == 1) {
|
||
|
|
printf("struct %s {\n\tint32_t dummy;\n};\n", argalias) > sysarg
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
# output to init_sysent.c
|
||
|
|
tempname = funcname
|
||
|
|
if (add_sysent_entry == 0) {
|
||
|
|
argssize = "0"
|
||
|
|
munge32 = "NULL"
|
||
|
|
munge_ret = "_SYSCALL_RET_NONE"
|
||
|
|
if (tempname != "enosys") {
|
||
|
|
tempname = "nosys"
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
# figure out which return value type to munge
|
||
|
|
if (returntype == "user_addr_t") {
|
||
|
|
munge_ret = "_SYSCALL_RET_ADDR_T"
|
||
|
|
}
|
||
|
|
else if (returntype == "user_ssize_t") {
|
||
|
|
munge_ret = "_SYSCALL_RET_SSIZE_T"
|
||
|
|
}
|
||
|
|
else if (returntype == "user_size_t") {
|
||
|
|
munge_ret = "_SYSCALL_RET_SIZE_T"
|
||
|
|
}
|
||
|
|
else if (returntype == "int") {
|
||
|
|
munge_ret = "_SYSCALL_RET_INT_T"
|
||
|
|
}
|
||
|
|
else if (returntype == "u_int" || returntype == "mach_port_name_t") {
|
||
|
|
munge_ret = "_SYSCALL_RET_UINT_T"
|
||
|
|
}
|
||
|
|
else if (returntype == "uint32_t") {
|
||
|
|
munge_ret = "_SYSCALL_RET_UINT_T"
|
||
|
|
}
|
||
|
|
else if (returntype == "uint64_t") {
|
||
|
|
munge_ret = "_SYSCALL_RET_UINT64_T"
|
||
|
|
}
|
||
|
|
else if (returntype == "off_t") {
|
||
|
|
munge_ret = "_SYSCALL_RET_OFF_T"
|
||
|
|
}
|
||
|
|
else if (returntype == "void") {
|
||
|
|
munge_ret = "_SYSCALL_RET_NONE"
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
printf "%s: line %d: invalid return type \"%s\" \n",
|
||
|
|
infile, NR, returntype
|
||
|
|
printf "You need to add \"%s\" into the return type checking code. \n",
|
||
|
|
returntype
|
||
|
|
exit 1
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
printf("#if CONFIG_REQUIRES_U32_MUNGING\n") > sysent
|
||
|
|
printf("\t{ \(sy_call_t *\)(void (*)(void))%s, %s, %s, %s, %s},",
|
||
|
|
tempname, munge32, munge_ret, argssize, size32) > sysent
|
||
|
|
linesize = length(tempname) + length(munge32) + \
|
||
|
|
length(munge_ret) + length(argssize) + length(size32) + 28
|
||
|
|
align_comment(linesize, 88, sysent)
|
||
|
|
printf("/* %d = %s%s*/\n", syscall_num, funcname, additional_comments) > sysent
|
||
|
|
printf("#else\n") > sysent
|
||
|
|
printf("\t{ \(sy_call_t *\)(void (*)(void))%s, %s, %s, %s},\n",
|
||
|
|
tempname, munge_ret, argssize, size32) > sysent
|
||
|
|
printf("#endif\n") > sysent
|
||
|
|
|
||
|
|
# output to syscalls.c
|
||
|
|
if (add_sysnames_entry == 1) {
|
||
|
|
tempname = funcname
|
||
|
|
if (substr(tempname, 1, 4) == "sys_") {
|
||
|
|
tempname = substr(tempname, 5)
|
||
|
|
}
|
||
|
|
if (funcname == "nosys" || funcname == "enosys") {
|
||
|
|
if (syscall_num == 0)
|
||
|
|
tempname = "syscall"
|
||
|
|
else
|
||
|
|
tempname = "#" syscall_num
|
||
|
|
}
|
||
|
|
printf("\t\"%s\", ", tempname) > syscallnamestempfile
|
||
|
|
linesize = length(tempname) + 8
|
||
|
|
align_comment(linesize, 25, syscallnamestempfile)
|
||
|
|
if (substr(tempname,1,1) == "#") {
|
||
|
|
printf("/* %d =%s*/\n", syscall_num, additional_comments) > syscallnamestempfile
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
printf("/* %d = %s%s*/\n", syscall_num, tempname, additional_comments) > syscallnamestempfile
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
# output to syscalls.h
|
||
|
|
if (add_sysheader_entry == 1) {
|
||
|
|
tempname = funcname
|
||
|
|
if (substr(tempname, 1, 4) == "sys_") {
|
||
|
|
tempname = substr(tempname, 5)
|
||
|
|
}
|
||
|
|
if (syscall_num == 0) {
|
||
|
|
tempname = "syscall"
|
||
|
|
}
|
||
|
|
if (tempname != "nosys" && tempname != "enosys") {
|
||
|
|
printf("#define\t%s%s", syscallprefix, tempname) > syshdrtempfile
|
||
|
|
linesize = length(syscallprefix) + length(tempname) + 12
|
||
|
|
align_comment(linesize, 30, syshdrtempfile)
|
||
|
|
printf("%d\n", syscall_num) > syshdrtempfile
|
||
|
|
}
|
||
|
|
else if (skip_for_header == 0) {
|
||
|
|
printf("\t\t\t/* %d %s*/\n", syscall_num, additional_comments) > syshdrtempfile
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
# output function prototypes to sysproto.h
|
||
|
|
if (add_sysproto_entry == 1) {
|
||
|
|
if (funcname =="exit") {
|
||
|
|
printf("void %s(struct proc *, struct %s *, int32_t *);\n",
|
||
|
|
funcname, argalias) > sysprotoend
|
||
|
|
}
|
||
|
|
else if ((funcname != "nosys" && funcname != "enosys") || (syscall_num == 0 && funcname == "nosys")) {
|
||
|
|
printf("int %s(struct proc *, struct %s *, %s *);\n",
|
||
|
|
funcname, argalias, returntype) > sysprotoend
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
# output to audit_kevents.c
|
||
|
|
printf("\t%s,\t\t", auditev) > audittempfile
|
||
|
|
printf("/* %d = %s%s*/\n", syscall_num, tempname, additional_comments) > audittempfile
|
||
|
|
|
||
|
|
tempname = funcname
|
||
|
|
if (skip_for_header == 0) {
|
||
|
|
if (tempname == "nosys" || tempname == "enosys") {
|
||
|
|
if (obs_comments == "") {
|
||
|
|
printf("0x40c%04x\tBSC_#%d%s\n", (syscall_num*4), syscall_num, obs_comments) > tracecodetempfile
|
||
|
|
} else {
|
||
|
|
printf("0x40c%04x\tBSC%s\n", (syscall_num*4), obs_comments) > tracecodetempfile
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
sub(/^_+/, "", tempname)
|
||
|
|
printf("0x40c%04x\tBSC_%s\n", (syscall_num*4), tempname) > tracecodetempfile
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
syscall_num++
|
||
|
|
next
|
||
|
|
}
|
||
|
|
|
||
|
|
END {
|
||
|
|
printf "#define AC(name) (sizeof(struct name) / sizeof(syscall_arg_t))\n" > sysinc
|
||
|
|
printf "\n" > sysinc
|
||
|
|
|
||
|
|
printf("\n__END_DECLS\n") > sysprotoend
|
||
|
|
printf("#undef PAD_\n") > sysprotoend
|
||
|
|
printf("#undef PADL_\n") > sysprotoend
|
||
|
|
printf("#undef PADR_\n") > sysprotoend
|
||
|
|
printf "\n#endif /* __APPLE_API_PRIVATE */\n" > sysprotoend
|
||
|
|
printf "#endif /* KERNEL */\n" > sysprotoend
|
||
|
|
printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
|
||
|
|
|
||
|
|
printf("};\n") > sysent
|
||
|
|
printf("const unsigned int nsysent = sizeof(sysent) / sizeof(sysent[0]);\n") > sysent
|
||
|
|
|
||
|
|
printf("};\n") > syscallnamestempfile
|
||
|
|
printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall_num) \
|
||
|
|
> syshdrtempfile
|
||
|
|
printf("#define\t%sinvalid\t%d\n", syscallprefix, 63) \
|
||
|
|
> syshdrtempfile
|
||
|
|
printf("\n#endif /* __APPLE_API_PRIVATE */\n") > syshdrtempfile
|
||
|
|
printf("#endif /* !%s */\n", syscall_h) > syshdrtempfile
|
||
|
|
printf("};\n\n") > audittempfile
|
||
|
|
printf("#endif /* AUDIT */\n") > audittempfile
|
||
|
|
|
||
|
|
printf "\tdefault:\n\t\tbreak;\n\t};\n}\n" > systraceargstempfile
|
||
|
|
printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceargdesctempfile
|
||
|
|
printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracerettempfile
|
||
|
|
} '
|
||
|
|
|
||
|
|
if [ $output_syscalltablefile -eq 1 ]; then
|
||
|
|
cat $syslegal > $syscalltablefile
|
||
|
|
cat $sysinc $sysent >> $syscalltablefile
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ $output_syscallnamesfile -eq 1 ]; then
|
||
|
|
cat $syslegal $syscallnamestempfile > $syscallnamesfile
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ $output_sysprotofile -eq 1 ]; then
|
||
|
|
cat $syslegal $sysarg $sysprotoend > $sysprotofile
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ $output_syshdrfile -eq 1 ]; then
|
||
|
|
cat $syslegal $syshdrtempfile > $syshdrfile
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ $output_auditevfile -eq 1 ]; then
|
||
|
|
cat $syslegal $audittempfile > $auditevfile
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ $output_systrace -eq 1 ]; then
|
||
|
|
cat $systraceargstempfile > $systraceargsfile
|
||
|
|
cat $systraceargdesctempfile >> $systraceargsfile
|
||
|
|
cat $systracerettempfile >> $systraceargsfile
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ $output_tracecodes -eq 1 ]; then
|
||
|
|
if [ $use_stdout -eq 1 ]; then
|
||
|
|
cat $tracecodetempfile
|
||
|
|
else
|
||
|
|
cat $tracecodetempfile > $tracecodename
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|