projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b | 1 | /* |
| 9bccf70c | 2 | * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. |
| 1c79356b A |
3 | * |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
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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. | |
| 1c79356b | 11 | * |
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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 | |
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14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
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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. | |
| 1c79356b A |
19 | * |
| 20 | * @APPLE_LICENSE_HEADER_END@ | |
| 21 | */ | |
| 22 | /* | |
| 23 | * Copyright (c) 1992, 1993 NeXT Computer, Inc. | |
| 1c79356b A |
24 | */ |
| 25 | ||
| 26 | #ifndef _PPC_SIGNAL_ | |
| 27 | #define _PPC_SIGNAL_ 1 | |
| 28 | ||
| 9bccf70c A |
29 | #include <sys/appleapiopts.h> |
| 30 | ||
| 31 | #ifdef __APPLE_API_OBSOLETE | |
| 1c79356b A |
32 | typedef int sig_atomic_t; |
| 33 | ||
| 34 | /* | |
| 35 | * Machine-dependant flags used in sigvec call. | |
| 36 | */ | |
| 37 | #define SV_SAVE_REGS 0x1000 /* Save all regs in sigcontext */ | |
| 38 | ||
| 39 | /* | |
| 40 | * regs_saved_t -- Describes which registers beyond what the kernel cares | |
| 41 | * about are saved to and restored from this sigcontext. | |
| 42 | * | |
| 43 | * The default is REGS_SAVED_CALLER, only the caller saved registers | |
| 44 | * are saved. If the SV_SAVE_REGS flag was set when the signal | |
| 45 | * handler was registered with sigvec() then all the registers will be | |
| 46 | * saved in the sigcontext, and REGS_SAVED_ALL will be set. The C | |
| 47 | * library uses REGS_SAVED_NONE in order to quickly restore kernel | |
| 48 | * state during a longjmp(). | |
| 49 | */ | |
| 50 | typedef enum { | |
| 51 | REGS_SAVED_NONE, /* Only kernel managed regs restored */ | |
| 52 | REGS_SAVED_CALLER, /* "Caller saved" regs: rpc, a0-a7, | |
| 53 | t0-t4, at, lk0-lk1, xt1-xt20, | |
| 54 | xr0-xr1 */ | |
| 55 | REGS_SAVED_ALL /* All registers */ | |
| 56 | } regs_saved_t; | |
| 57 | ||
| 58 | ||
| 59 | /* | |
| 60 | * Information pushed on stack when a signal is delivered. | |
| 61 | * This is used by the kernel to restore state following | |
| 62 | * execution of the signal handler. It is also made available | |
| 63 | * to the handler to allow it to properly restore state if | |
| 64 | * a non-standard exit is performed. | |
| 65 | */ | |
| 66 | struct sigcontext { | |
| 67 | int sc_onstack; /* sigstack state to restore */ | |
| 68 | int sc_mask; /* signal mask to restore */ | |
| 69 | int sc_ir; /* pc */ | |
| 70 | int sc_psw; /* processor status word */ | |
| 71 | int sc_sp; /* stack pointer if sc_regs == NULL */ | |
| 72 | void *sc_regs; /* (kernel private) saved state */ | |
| 73 | }; | |
| 74 | ||
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75 | #endif /* __APPLE_API_OBSOLETE */ |
| 76 | ||
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77 | #endif /* _PPC_SIGNAL_ */ |
| 78 |