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      1  1.7     joerg /* $NetBSD: crt0.S,v 1.7 2018/11/26 17:37:45 joerg Exp $ */
      2  1.1     joerg 
      3  1.1     joerg /*
      4  1.1     joerg  * Copyright (c) 1998 Christos Zoulas
      5  1.1     joerg  * Copyright (c) 1995 Christopher G. Demetriou
      6  1.1     joerg  * All rights reserved.
      7  1.1     joerg  *
      8  1.1     joerg  * Redistribution and use in source and binary forms, with or without
      9  1.1     joerg  * modification, are permitted provided that the following conditions
     10  1.1     joerg  * are met:
     11  1.1     joerg  * 1. Redistributions of source code must retain the above copyright
     12  1.1     joerg  *    notice, this list of conditions and the following disclaimer.
     13  1.1     joerg  * 2. Redistributions in binary form must reproduce the above copyright
     14  1.1     joerg  *    notice, this list of conditions and the following disclaimer in the
     15  1.1     joerg  *    documentation and/or other materials provided with the distribution.
     16  1.1     joerg  * 3. All advertising materials mentioning features or use of this software
     17  1.1     joerg  *    must display the following acknowledgement:
     18  1.1     joerg  *          This product includes software developed for the
     19  1.1     joerg  *          NetBSD Project.  See http://www.NetBSD.org/ for
     20  1.1     joerg  *          information about NetBSD.
     21  1.1     joerg  * 4. The name of the author may not be used to endorse or promote products
     22  1.1     joerg  *    derived from this software without specific prior written permission.
     23  1.1     joerg  *
     24  1.1     joerg  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     25  1.1     joerg  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     26  1.1     joerg  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     27  1.1     joerg  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     28  1.1     joerg  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     29  1.1     joerg  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     30  1.1     joerg  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     31  1.1     joerg  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     32  1.1     joerg  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     33  1.1     joerg  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     34  1.1     joerg  *
     35  1.1     joerg  * <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
     36  1.1     joerg  */
     37  1.1     joerg 
     38  1.1     joerg #include <machine/asm.h>
     39  1.1     joerg 
     40  1.7     joerg RCSID("$NetBSD: crt0.S,v 1.7 2018/11/26 17:37:45 joerg Exp $")
     41  1.1     joerg 
     42  1.1     joerg STRONG_ALIAS(_start,__start)
     43  1.1     joerg 
     44  1.2       uwe /*
     45  1.4       uwe  * Kernel setregs() passes arguments for the 6-argument version of
     46  1.4       uwe  * ___start (but with 5th and 6th in registers, to avoid copyout).
     47  1.7     joerg  * Since we now use 2-argument version of ___start - that obtains
     48  1.4       uwe  * argc, argv and environ from ps_strings - move its arguments to
     49  1.4       uwe  * proper registers.
     50  1.2       uwe  */
     51  1.1     joerg _ENTRY(__start)
     52  1.3       uwe 	mov.l	.L___start, r0
     53  1.4       uwe 	mov	r7, r4		! void (*cleanup)(void)
     54  1.5  christos 1:	JUMP	r0
     55  1.7     joerg 	 mov	r9, r5		! struct ps_strings *ps_strings
     56  1.3       uwe 
     57  1.3       uwe 	.p2align 2
     58  1.5  christos .L___start:
     59  1.6       uwe 	CALL_DATUM_LOCAL(___start, 1b)
     60