config root man

/*-
 * Copyright (c) 1989, 1990 William F. Jolitz.
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * 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.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 *
 *	from: vector.s, 386BSD 0.1 unknown origin
 * $FreeBSD: release/9.1.0/sys/i386/i386/atpic_vector.s 209483 2010-06-23 20:44:07Z kib $
 */

/*
 * Interrupt entry points for external interrupts triggered by the 8259A
 * master and slave interrupt controllers.
 */

#include <machine/asmacros.h>

#include "assym.s"

/*
 * Macros for interrupt entry, call to handler, and exit.
 */
#define	INTR(irq_num, vec_name) \
	.text ;								\
	SUPERALIGN_TEXT ;						\
IDTVEC(vec_name) ;							\
	PUSH_FRAME ;							\
	SET_KERNEL_SREGS ;						\
	cld ;								\
;									\
	FAKE_MCOUNT(TF_EIP(%esp)) ;					\
	pushl	%esp		;                                       \
	pushl	$irq_num; 	/* pass the IRQ */			\
	call	atpic_handle_intr ;					\
	addl	$8, %esp ;	/* discard the parameters */		\
;									\
	MEXITCOUNT ;							\
	jmp	doreti

	INTR(0, atpic_intr0)
	INTR(1, atpic_intr1)
	INTR(2, atpic_intr2)
	INTR(3, atpic_intr3)
	INTR(4, atpic_intr4)
	INTR(5, atpic_intr5)
	INTR(6, atpic_intr6)
	INTR(7, atpic_intr7)
	INTR(8, atpic_intr8)
	INTR(9, atpic_intr9)
	INTR(10, atpic_intr10)
	INTR(11, atpic_intr11)
	INTR(12, atpic_intr12)
	INTR(13, atpic_intr13)
	INTR(14, atpic_intr14)
	INTR(15, atpic_intr15)