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signal.h revision 1.15 
      1 /*	$NetBSD: signal.h,v 1.15 2002/03/05 14:17:16 simonb Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * Ralph Campbell.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	@(#)signal.h	8.1 (Berkeley) 6/10/93
     39  */
     40 
     41 #ifndef	_MIPS_SIGNAL_H_
     42 #define	_MIPS_SIGNAL_H_
     43 
     44 #include <machine/cdefs.h>	/* for API selection */
     45 
     46 #if !defined(__ASSEMBLER__)
     47 
     48 /*
     49  * Machine-dependent signal definitions
     50  */
     51 
     52 typedef int sig_atomic_t;
     53 
     54 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
     55     !defined(_XOPEN_SOURCE)
     56 /*
     57  * Information pushed on stack when a signal is delivered.
     58  * This is used by the kernel to restore state following
     59  * execution of the signal handler.  It is also made available
     60  * to the handler to allow it to restore state properly if
     61  * a non-standard exit is performed.
     62  *
     63  * sizeof(sigcontext) = 45 * sizeof(int) + 35 * sizeof(mips_reg_t)
     64  */
     65 #if defined(__LIBC12_SOURCE__) || defined(_KERNEL)
     66 struct sigcontext13 {
     67 	int	sc_onstack;	/* sigstack state to restore */
     68 	int	sc_mask;	/* signal mask to restore (old style) */
     69 	mips_reg_t sc_pc;	/* pc at time of signal */
     70 	mips_reg_t sc_regs[32];	/* processor regs 0 to 31 */
     71 	mips_reg_t mullo, mulhi;/* mullo and mulhi registers... */
     72 	int	sc_fpused;	/* fp has been used */
     73 	int	sc_fpregs[33];	/* fp regs 0 to 31 and csr */
     74 	int	sc_fpc_eir;	/* floating point exception instruction reg */
     75 	int	sc_xxx[8];	/* XXX reserved */
     76 };
     77 #endif /* __LIBC12_SOURCE__ || _KERNEL */
     78 
     79 struct sigcontext {
     80 	int	sc_onstack;	/* sigstack state to restore */
     81 	int	__sc_mask13;	/* signal mask to restore (old style) */
     82 	mips_reg_t sc_pc;	/* pc at time of signal */
     83 	mips_reg_t sc_regs[32];	/* processor regs 0 to 31 */
     84 	mips_reg_t mullo, mulhi;/* mullo and mulhi registers... */
     85 	int	sc_fpused;	/* fp has been used */
     86 	int	sc_fpregs[33];	/* fp regs 0 to 31 and csr */
     87 	int	sc_fpc_eir;	/* floating point exception instruction reg */
     88 	int	sc_xxx[8];	/* XXX reserved */
     89 	sigset_t sc_mask;	/* signal mask to restore (new style) */
     90 };
     91 
     92 #endif	/* !_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE */
     93 
     94 #endif	/* !_LANGUAGE_ASSEMBLY */
     95 #if !defined(_KERNEL)
     96 /*
     97  * Hard code these to make people think twice about breaking compatibility.
     98  * These macros are generated independently for the kernel.
     99  */
    100 #if !defined(_MIPS_BSD_API) || _MIPS_BSD_API == _MIPS_BSD_API_LP32
    101 #define _OFFSETOF_SC_REGS	12
    102 #define _OFFSETOF_SC_FPREGS	152
    103 #define _OFFSETOF_SC_MASK	320
    104 #else
    105 #define _OFFSETOF_SC_REGS	16
    106 #define _OFFSETOF_SC_FPREGS	292
    107 #define _OFFSETOF_SC_MASK	460
    108 #endif
    109 #endif	/* !_KERNEL */
    110 #endif	/* !_MIPS_SIGNAL_H_ */
    111