120 lines
4.3 KiB
C
120 lines
4.3 KiB
C
/* $NetBSD: signal.h,v 1.27 2005/12/11 12:18:09 christos Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)signal.h 8.1 (Berkeley) 6/10/93
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*/
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#ifndef _MIPS_SIGNAL_H_
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#define _MIPS_SIGNAL_H_
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#include <sys/featuretest.h>
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#include <machine/cdefs.h> /* for API selection */
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#ifdef _KERNEL
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#ifdef _KERNEL_OPT
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#include "opt_compat_netbsd.h"
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#include "opt_compat_ultrix.h"
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#endif
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#ifdef COMPAT_16
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#define SIGTRAMP_VALID(vers) ((unsigned)(vers) <= 2)
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#else
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#define SIGTRAMP_VALID(vers) ((vers) == 2)
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#endif
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#endif
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#if !defined(__ASSEMBLER__)
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/*
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* Machine-dependent signal definitions
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*/
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typedef int sig_atomic_t;
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/*
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* Information pushed on stack when a signal is delivered.
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* This is used by the kernel to restore state following
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* execution of the signal handler. It is also made available
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* to the handler to allow it to restore state properly if
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* a non-standard exit is performed.
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*
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* sizeof(sigcontext) = 45 * sizeof(int) + 35 * sizeof(mips_reg_t)
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*/
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#if defined(_KERNEL) && (defined(COMPAT_13) || defined(COMPAT_ULTRIX))
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struct sigcontext13 {
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int sc_onstack; /* sigstack state to restore */
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int sc_mask; /* signal mask to restore (old style) */
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mips_reg_t sc_pc; /* pc at time of signal */
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mips_reg_t sc_regs[32]; /* processor regs 0 to 31 */
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mips_reg_t mullo, mulhi;/* mullo and mulhi registers... */
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int sc_fpused; /* fp has been used */
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int sc_fpregs[33]; /* fp regs 0 to 31 and csr */
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int sc_fpc_eir; /* floating point exception instruction reg */
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int sc_xxx[8]; /* XXX reserved */
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};
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#endif /* _KERNEL && COMPAT_13 */
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#if defined(_LIBC) || (defined(_KERNEL) && (defined(COMPAT_16) || defined(COMPAT_ULTRIX)))
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struct sigcontext {
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int sc_onstack; /* sigstack state to restore */
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int __sc_mask13; /* signal mask to restore (old style) */
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mips_reg_t sc_pc; /* pc at time of signal */
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mips_reg_t sc_regs[32]; /* processor regs 0 to 31 */
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mips_reg_t mullo, mulhi;/* mullo and mulhi registers... */
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int sc_fpused; /* fp has been used */
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int sc_fpregs[33]; /* fp regs 0 to 31 and csr */
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int sc_fpc_eir; /* floating point exception instruction reg */
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int sc_xxx[8]; /* XXX reserved */
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sigset_t sc_mask; /* signal mask to restore (new style) */
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};
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#endif /* _LIBC || _KERNEL */
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#endif /* !_LANGUAGE_ASSEMBLY */
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#if defined(_LIBC)
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/*
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* Hard code these to make people think twice about breaking compatibility.
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* These macros are generated independently for the kernel.
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*/
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#if !defined(_MIPS_BSD_API) || _MIPS_BSD_API == _MIPS_BSD_API_LP32
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#define _OFFSETOF_SC_REGS 12
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#define _OFFSETOF_SC_FPREGS 152
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#define _OFFSETOF_SC_MASK 320
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#else
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#define _OFFSETOF_SC_REGS 16
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#define _OFFSETOF_SC_FPREGS 292
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#define _OFFSETOF_SC_MASK 460
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#endif
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#endif /* _LIBC */
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#endif /* !_MIPS_SIGNAL_H_ */
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