bsd/ppc/signal.h

   1 /*
   2  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * Copyright (c) 1992, 1993 NeXT Computer, Inc.
  30  */
  31
  32 #ifndef _PPC_SIGNAL_H_
  33 #define _PPC_SIGNAL_H_ 1
  34
  35 #include <sys/cdefs.h>
  36
  37 #ifndef _ANSI_SOURCE
  38
  39 typedef int sig_atomic_t;
  40
  41 #include <sys/appleapiopts.h>
  42
  43 #ifdef __APPLE_API_OBSOLETE
  44
  45 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
  46
  47 #define __need_struct_sigcontext
  48 #define __need_struct_sigcontext32
  49 #define __need_struct_sigcontext64
  50 #include <ppc/_structs.h>
  51
  52 /*
  53  * Machine-dependant flags used in sigvec call.
  54  */
  55 #define SV_SAVE_REGS    0x1000  /* Save all regs in sigcontext */
  56
  57 /*
  58  * regs_saved_t -- Describes which registers beyond what the kernel cares
  59  *                 about are saved to and restored from this sigcontext.
  60  *
  61  * The default is REGS_SAVED_CALLER, only the caller saved registers
  62  * are saved.  If the SV_SAVE_REGS flag was set when the signal
  63  * handler was registered with sigvec() then all the registers will be
  64  * saved in the sigcontext, and REGS_SAVED_ALL will be set.  The C
  65  * library uses REGS_SAVED_NONE in order to quickly restore kernel
  66  * state during a longjmp().
  67  */
  68 typedef enum {
  69         REGS_SAVED_NONE,                /* Only kernel managed regs restored */
  70         REGS_SAVED_CALLER,              /* "Caller saved" regs: rpc, a0-a7,
  71                                            t0-t4, at, lk0-lk1, xt1-xt20,
  72                                            xr0-xr1 */
  73         REGS_SAVED_ALL                  /* All registers */
  74 } regs_saved_t;
  75
  76 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
  77
  78 #endif /* __APPLE_API_OBSOLETE */
  79
  80 #endif /* _ANSI_SOURCE */
  81
  82 #endif /* _PPC_SIGNAL_H_ */
  83