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Annotation of sys/arch/powerpc/include/signal.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: signal.h,v 1.7 2006/01/08 14:20:17 millert Exp $      */
                      2: /*     $NetBSD: signal.h,v 1.1 1996/09/30 16:34:34 ws Exp $    */
                      3:
                      4: /*
                      5:  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
                      6:  * Copyright (C) 1995, 1996 TooLs GmbH.
                      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 TooLs GmbH.
                     20:  * 4. The name of TooLs GmbH 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 TOOLS GMBH ``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 TOOLS GMBH 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: #ifndef        _POWERPC_SIGNAL_H_
                     35: #define        _POWERPC_SIGNAL_H_
                     36:
                     37: #include <sys/cdefs.h>
                     38:
                     39: typedef int sig_atomic_t;
                     40:
                     41: #if __BSD_VISIBLE || __XPG_VISIBLE >= 420
                     42: #include <machine/_types.h>
                     43:
                     44: /*
                     45:  * We have to save all registers on every trap, because
                     46:  *     1. user could attach this process every time
                     47:  *     2. we must be able to restore all user registers in case of fork
                     48:  * Actually, we do not save the fp registers on trap, since
                     49:  * these are not used by the kernel. They are saved only when switching
                     50:  * between processes using the FPU.
                     51:  *
                     52:  */
                     53: struct trapframe {
                     54:        __register_t fixreg[32];
                     55:        __register_t lr;
                     56:        __register_t cr;
                     57:        __register_t xer;
                     58:        __register_t ctr;
                     59:        int srr0;
                     60:        int srr1;
                     61:        int dar;                        /* dar & dsisr are only filled on a DSI trap */
                     62:        int dsisr;
                     63:        __register_t exc;
                     64: };
                     65:
                     66: struct sigcontext {
                     67:        int sc_onstack;                 /* saved onstack flag */
                     68:        int sc_mask;                    /* saved signal mask */
                     69:        struct trapframe sc_frame;      /* saved registers */
                     70: };
                     71: #endif /* __BSD_VISIBLE || __XPG_VISIBLE >= 420 */
                     72: #endif /* _POWERPC_SIGNAL_H_ */