# $NetBSD: syscallargs.awk,v 1.1 2014/09/05 18:09:37 matt Exp $
#
# Copyright (c) 2014 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Matt Thomas of 3am Software Foundry.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

BEGIN {
}

/#define.SYS_MAXSYS.*/ { next; }

/#define.SYS_.*/ {
	x = substr($2, 5);
	syscall[x] = "0";
}

/^check_syscall_args/ {
	l = length() - 20;
	x = substr($0, 20, l);
	y = gensub("sys_", "", 1, x);
	syscall[y] = sprintf("sizeof(struct %s_args) / sizeof(register_t)", x);
}

END {
	print "include <sys/types.h>"
	print "include <sys/lwp.h>"
	print "include <sys/ucontext.h>"
	print "include <sys/syscallargs.h>"
	print;
	for (i in syscall) {
		printf "define NSYSARGS_%s %s\n", i, syscall[i];
	}
}