bsd/i386/signal.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Copyright (c) 1992 NeXT Computer, Inc.
  24  *
  25  * HISTORY
  26  *
  27  * 8 April 1992 ? at NeXT
  28  *      Created.
  29  */
  30
  31 #ifndef _i386_SIGNAL_
  32 #define _i386_SIGNAL_ 1
  33
  34 typedef int sig_atomic_t;
  35
  36 /*
  37  * Information pushed on stack when a signal is delivered.
  38  * This is used by the kernel to restore state following
  39  * execution of the signal handler.  It is also made available
  40  * to the handler to allow it to properly restore state if
  41  * a non-standard exit is performed.
  42  */
  43 struct  sigcontext {
  44     int                 sc_onstack;     /* sigstack state to restore */
  45     int                 sc_mask;        /* signal mask to restore */
  46     unsigned int        sc_eax;
  47     unsigned int        sc_ebx;
  48     unsigned int        sc_ecx;
  49     unsigned int        sc_edx;
  50     unsigned int        sc_edi;
  51     unsigned int        sc_esi;
  52     unsigned int        sc_ebp;
  53     unsigned int        sc_esp;
  54     unsigned int        sc_ss;
  55     unsigned int        sc_eflags;
  56     unsigned int        sc_eip;
  57     unsigned int        sc_cs;
  58     unsigned int        sc_ds;
  59     unsigned int        sc_es;
  60     unsigned int        sc_fs;
  61     unsigned int        sc_gs;
  62 };
  63
  64 #endif  /* _i386_SIGNAL_ */