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Annotation of src/lib/libc/arch/sparc64/sys/__sigtramp2.S, Revision 1.3

1.3     ! martin      1: /*     $NetBSD: __sigtramp2.S,v 1.2 2003/10/27 02:33:06 christos Exp $ */
1.1       christos    2:
                      3: /*-
                      4:  * Copyright (c) 2003 The NetBSD Foundation, Inc.
                      5:  * All rights reserved.
                      6:  *
                      7:  * This code is derived from software contributed to The NetBSD Foundation
                      8:  * by Paul Kranenburg.
                      9:  *
                     10:  * Redistribution and use in source and binary forms, with or without
                     11:  * modification, are permitted provided that the following conditions
                     12:  * are met:
                     13:  * 1. Redistributions of source code must retain the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer.
                     15:  * 2. Redistributions in binary form must reproduce the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer in the
                     17:  *    documentation and/or other materials provided with the distribution.
                     18:  *
                     19:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     20:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     21:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     22:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     23:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     24:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     25:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     26:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     27:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     28:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     29:  * POSSIBILITY OF SUCH DAMAGE.
                     30:  */
                     31:
                     32: #include <machine/asm.h>
                     33: #if defined(SYSLIBC_SCCS) && !defined(lint)
1.3     ! martin     34:        RCSID("$NetBSD: __sigtramp2.S,v 1.2 2003/10/27 02:33:06 christos Exp $")
1.1       christos   35: #endif /* SYSLIBC_SCCS and not lint */
                     36:
                     37: #include "SYS.h"
                     38:
                     39: #define _LOCORE
1.2       christos   40: #include <sparc/frame.h>       /* BIAS, CC64FSZ */
1.1       christos   41:
                     42: /*
                     43:  * When this code is run, the stack looks like:
                     44:  *     [%sp + BIAS]                    struct frame
1.2       christos   45:  *     [%sp + BIAS + CC64FSZ]          siginfo_t
                     46:  *     [%sp + BIAS + CC64FSZ + 128]    ucontext_t
1.1       christos   47:  *         .
                     48:  *         .
                     49:  */
                     50: ENTRY_NOPROFILE(__sigtramp_siginfo_2)
1.2       christos   51:        add     %sp, BIAS + CC64FSZ + 128, %o0  /* get pointer to ucontext */
1.1       christos   52:        mov     SYS_setcontext, %g1
                     53:        t       ST_SYSCALL              /* call setcontext */
                     54:        mov     SYS_exit, %g1           /* exit with errno */
                     55:        t       ST_SYSCALL              /* if sigreturn fails */