/* * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved. * * @APPLE_LICENSE_OSREFERENCE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the * License may not be used to create, or enable the creation or * redistribution of, unlawful or unlicensed copies of an Apple operating * system, or to circumvent, violate, or enable the circumvention or * violation of, any terms of an Apple operating system software license * agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_OSREFERENCE_HEADER_END@ */ /* * Copyright (c) 1992, 1993 NeXT Computer, Inc. */ #ifndef _PPC_SIGNAL_ #define _PPC_SIGNAL_ 1 #include <sys/appleapiopts.h> #ifdef __APPLE_API_OBSOLETE typedef int sig_atomic_t; /* * Machine-dependant flags used in sigvec call. */ #define SV_SAVE_REGS 0x1000 /* Save all regs in sigcontext */ /* * regs_saved_t -- Describes which registers beyond what the kernel cares * about are saved to and restored from this sigcontext. * * The default is REGS_SAVED_CALLER, only the caller saved registers * are saved. If the SV_SAVE_REGS flag was set when the signal * handler was registered with sigvec() then all the registers will be * saved in the sigcontext, and REGS_SAVED_ALL will be set. The C * library uses REGS_SAVED_NONE in order to quickly restore kernel * state during a longjmp(). */ typedef enum { REGS_SAVED_NONE, /* Only kernel managed regs restored */ REGS_SAVED_CALLER, /* "Caller saved" regs: rpc, a0-a7, t0-t4, at, lk0-lk1, xt1-xt20, xr0-xr1 */ REGS_SAVED_ALL /* All registers */ } regs_saved_t; /* * Information pushed on stack when a signal is delivered. * This is used by the kernel to restore state following * execution of the signal handler. It is also made available * to the handler to allow it to properly restore state if * a non-standard exit is performed. */ struct sigcontext32 { int sc_onstack; /* sigstack state to restore */ int sc_mask; /* signal mask to restore */ int sc_ir; /* pc */ int sc_psw; /* processor status word */ int sc_sp; /* stack pointer if sc_regs == NULL */ void *sc_regs; /* (kernel private) saved state */ }; struct sigcontext64 { int sc_onstack; /* sigstack state to restore */ int sc_mask; /* signal mask to restore */ long long sc_ir; /* pc */ long long sc_psw; /* processor status word */ long long sc_sp; /* stack pointer if sc_regs == NULL */ void *sc_regs; /* (kernel private) saved state */ }; /* * LP64todo - Have to decide how to handle this. * For now, just duplicate the 32-bit context as the generic one. */ struct sigcontext { int sc_onstack; /* sigstack state to restore */ int sc_mask; /* signal mask to restore */ int sc_ir; /* pc */ int sc_psw; /* processor status word */ int sc_sp; /* stack pointer if sc_regs == NULL */ void *sc_regs; /* (kernel private) saved state */ }; #endif /* __APPLE_API_OBSOLETE */ #endif /* _PPC_SIGNAL_ */