1/* $NetBSD: locore.S,v 1.12 2008/04/28 20:23:22 martin Exp $ */ 2 3/*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#include <sh3/asm.h> 30 31/* 32 * LINTSTUB: include <sys/types.h> 33 * LINTSTUB: include <dev/kloader.h> 34 * 35 * LINTSTUB: Var: char kernel_text[1]; 36 * 37 * LINTSTUB: Func: void start(int argc, char *argv[], struct bootinfo *bi) 38 * __attribute__((__noreturn__)) 39 * Kernel entry point. setup bootstrap stack pointer. 40 * Don't pollute r4, r5, r6, since these are passed down to 41 * machine_startup(). 42 */ 43NENTRY(start) 44ALTENTRY(kernel_text) 45 mov.l .L_machine_startup, r0 46 mov.l .L_bootstrap_stack, r1 47 jmp @r0 48 mov r1, sp 49 /* NOTREACHED */ 50 51 .align 2 52.L_machine_startup: .long _C_LABEL(machine_startup) 53.L_bootstrap_stack: .long _C_LABEL(start) 54 55 SET_ENTRY_SIZE(start) 56