Return to sigcode.S CVS log

Up to [local] / sys / arch / arm / arm

Annotation of sys/arch/arm/arm/sigcode.S, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: sigcode.S,v 1.2 2006/12/27 17:49:26 drahn Exp $       */
        !             2: /*     $NetBSD: sigcode.S,v 1.6 2003/10/05 19:44:58 matt Exp $ */
        !             3:
        !             4: /*
        !             5:  * Copyright (C) 1994-1997 Mark Brinicombe
        !             6:  * Copyright (C) 1994 Brini
        !             7:  * All rights reserved.
        !             8:  *
        !             9:  * Redistribution and use in source and binary forms, with or without
        !            10:  * modification, are permitted provided that the following conditions
        !            11:  * are met:
        !            12:  * 1. Redistributions of source code must retain the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer.
        !            14:  * 2. Redistributions in binary form must reproduce the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer in the
        !            16:  *    documentation and/or other materials provided with the distribution.
        !            17:  * 3. All advertising materials mentioning features or use of this software
        !            18:  *    must display the following acknowledgement:
        !            19:  *     This product includes software developed by Brini.
        !            20:  * 4. The name of Brini may not be used to endorse or promote products
        !            21:  *    derived from this software without specific prior written permission.
        !            22:  *
        !            23:  * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR
        !            24:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            25:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            26:  * IN NO EVENT SHALL BRINI BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
        !            27:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
        !            28:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
        !            29:  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
        !            30:  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
        !            31:  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
        !            32:  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            33:  */
        !            34:
        !            35: #include <machine/asm.h>
        !            36:
        !            37: #include "assym.h"
        !            38: #include <sys/syscall.h>
        !            39:
        !            40: /*
        !            41:  * Signal trampoline;
        !            42:  */
        !            43:
        !            44: ENTRY_NP(sigcode)
        !            45: /*
        !            46:  * The kernel arranges for the handler to be invoked directly.  This
        !            47:  * trampoline is used only to return from the signal.
        !            48:  *
        !            49:  * The stack pointer points to the saved sigcontext.
        !            50:  */
        !            51: /*     mov     r0, sp */
        !            52:        add     r0, sp, #SIGF_SC
        !            53:        ldr     r12, =SYS_sigreturn
        !            54:        swi     SYS_sigreturn
        !            55:
        !            56: /* Well if that failed we better exit quick ! */
        !            57:
        !            58:        swi     SYS_exit
        !            59:        b       . - 8
        !            60:
        !            61:        .align  0
        !            62:         .global _C_LABEL(esigcode)
        !            63: _C_LABEL(esigcode):