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Annotation of sys/arch/alpha/alpha/osf1_locore.s, Revision 1.1.1.1

1.1       nbrk        1: /* $OpenBSD: osf1_locore.s,v 1.1 2000/08/12 20:10:31 ericj Exp $ */
                      2: /* $NetBSD$ */
                      3:
                      4: /*
                      5:  * Copyright (c) 1999 Christopher G. Demetriou.  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:  * 3. All advertising materials mentioning features or use of this software
                     16:  *    must display the following acknowledgement:
                     17:  *      This product includes software developed by Christopher G. Demetriou
                     18:  *     for the NetBSD Project.
                     19:  * 4. The name of the author may not be used to endorse or promote products
                     20:  *    derived from this software without specific prior written permission
                     21:  *
                     22:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     23:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     24:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     25:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     26:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     27:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     28:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     29:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     30:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     31:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     32:  */
                     33:
                     34: /*
                     35:  * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
                     36:  * All rights reserved.
                     37:  *
                     38:  * Author: Chris G. Demetriou
                     39:  *
                     40:  * Permission to use, copy, modify and distribute this software and
                     41:  * its documentation is hereby granted, provided that both the copyright
                     42:  * notice and this permission notice appear in all copies of the
                     43:  * software, derivative works or modified versions, and any portions
                     44:  * thereof, and that both notices appear in supporting documentation.
                     45:  *
                     46:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
                     47:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
                     48:  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
                     49:  *
                     50:  * Carnegie Mellon requests users of this software to return to
                     51:  *
                     52:  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
                     53:  *  School of Computer Science
                     54:  *  Carnegie Mellon University
                     55:  *  Pittsburgh PA 15213-3890
                     56:  *
                     57:  * any improvements or extensions that they make and grant Carnegie the
                     58:  * rights to redistribute these changes.
                     59:  */
                     60:
                     61: #include <machine/asm.h>
                     62:
                     63: #ifdef COMPAT_OSF1
                     64: #include <compat/osf1/osf1_syscall.h>
                     65: #endif
                     66:
                     67: /*
                     68:  * OSF/1 signal trampoline code.
                     69:  */
                     70:
                     71: #define OSF1_SYSCALLNUM(name)                                  \
                     72:        ___CONCAT(OSF1_SYS_,name)
                     73:
                     74: #define OSF1_CALLSYS_NOERROR(name)                             \
                     75:        ldiq    v0, OSF1_SYSCALLNUM(name);                      \
                     76:        call_pal PAL_OSF1_callsys
                     77:
                     78: NESTED(osf1_sigcode,0,0,ra,0,0)
                     79:        lda     sp, -16(sp)
                     80:        stq     a2, 0(sp)
                     81:        jsr     ra, (t12)
                     82:        ldq     a0, 0(sp)
                     83:        lda     sp, 16(sp)
                     84:        OSF1_CALLSYS_NOERROR(sigreturn)
                     85:        mov     v0, a0
                     86:        OSF1_CALLSYS_NOERROR(exit)
                     87: XNESTED(osf1_esigcode,0)
                     88:        END(osf1_sigcode)