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      1 /*	$OpenBSD: signal.h,v 1.8 2006/01/09 18:18:37 millert 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. Neither the name of the University nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  *
     34  *	@(#)signal.h	8.1 (Berkeley) 6/10/93
     35  */
     36 
     37 #ifndef _MIPS_SIGNAL_H_
     38 #define _MIPS_SIGNAL_H_
     39 
     40 #include <sys/cdefs.h>
     41 
     42 #if !defined(__LANGUAGE_ASSEMBLY)
     43 #include <sys/types.h>
     44 
     45 /*
     46  * Machine-dependent signal definitions
     47  */
     48 typedef int sig_atomic_t;
     49 
     50 #if __BSD_VISIBLE || __XPG_VISIBLE >= 420
     51 
     52 /*
     53  * Information pushed on stack when a signal is delivered.
     54  * This is used by the kernel to restore state following
     55  * execution of the signal handler.  It is also made available
     56  * to the handler to allow it to restore state properly if
     57  * a non-standard exit is performed.
     58  */
     59 
     60 #if defined(__ANDROID__)
     61 
     62 /*
     63  * The Linux and OpenBSD sigcontext structures are slightly different
     64  * This is the Linux O32 ABI compatible sigcontext
     65  */
     66 
     67 struct sigcontext {
     68 	unsigned int sc_regmask;
     69 	unsigned int sc_status;
     70 	unsigned long long sc_pc;
     71 	unsigned long long sc_regs[32];
     72 	unsigned long long sc_fpregs[32];
     73 	unsigned int sc_acx;
     74 	unsigned int sc_fpc_csr;
     75 	unsigned int sc_fpc_eir;
     76 	unsigned int sc_used_math;
     77 	unsigned int sc_dsp;
     78 	unsigned long long sc_mdhi;
     79 	unsigned long long sc_mdlo;
     80 	unsigned long sc_hi1;
     81 	unsigned long sc_lo1;
     82 	unsigned long sc_hi2;
     83 	unsigned long sc_lo2;
     84 	unsigned long sc_hi3;
     85 	unsigned long sc_lo3;
     86 };
     87 
     88 #else
     89 
     90 struct	sigcontext {
     91 	long	sc_onstack;	/* sigstack state to restore */
     92 	long	 sc_mask;	/* signal mask to restore */
     93 	__register_t sc_pc;	/* pc at time of signal */
     94 	__register_t sc_regs[32]; /* processor regs 0 to 31 */
     95 	__register_t mullo;	/* mullo and mulhi registers... */
     96 	__register_t mulhi;	/* mullo and mulhi registers... */
     97 	f_register_t sc_fpregs[33]; /* fp regs 0 to 31 and csr */
     98 	long	sc_fpused;	/* fp has been used */
     99 	long	sc_fpc_eir;	/* floating point exception instruction reg */
    100 	long	xxx[8];		/* XXX reserved */
    101 };
    102 #endif
    103 #endif /* __BSD_VISIBLE || __XPG_VISIBLE >= 420 */
    104 
    105 #else /* __LANGUAGE_ASSEMBLY */
    106 
    107 #ifdef __ANDROID__
    108 
    109 #define	SC_REGMASK	(0*REGSZ)
    110 #define	SC_STATUS	(1*REGSZ)
    111 #define	SC_PC		(2*REGSZ)
    112 #define	SC_REGS		(SC_PC+8)
    113 #define	SC_FPREGS	(SC_REGS+32*8)
    114 #define	SC_ACX		(SC_FPREGS+32*REGSZ_FP)
    115 #define	SC_FPC_CSR	(SC_ACX+1*REGSZ)
    116 #define	SC_FPC_EIR	(SC_ACX+2*REGSZ)
    117 #define	SC_USED_MATH	(SC_ACX+3*REGSZ)
    118 #define	SC_DSP		(SC_ACX+4*REGSZ)
    119 #define	SC_MDHI		(SC_ACX+5*REGSZ)
    120 #define	SC_MDLO		(SC_MDHI+8)
    121 #define	SC_HI1		(SC_MDLO+8)
    122 #define	SC_LO1		(SC_HI1+1*REGSZ)
    123 #define	SC_HI2		(SC_HI1+2*REGSZ)
    124 #define	SC_LO2		(SC_HI1+3*REGSZ)
    125 #define	SC_HI3		(SC_HI1+4*REGSZ)
    126 #define	SC_LO3		(SC_HI1+5*REGSZ)
    127 /* OpenBSD compatibility */
    128 #define	SC_MASK		SC_REGMASK
    129 #define	SC_FPUSED	SC_USED_MATH
    130 
    131 #else
    132 
    133 #define SC_ONSTACK	(0 * REGSZ)
    134 #define	SC_MASK		(1 * REGSZ)
    135 #define	SC_PC		(2 * REGSZ)
    136 #define	SC_REGS		(3 * REGSZ)
    137 #define	SC_MULLO	(35 * REGSZ)
    138 #define	SC_MULHI	(36 * REGSZ)
    139 #define	SC_FPREGS	(37 * REGSZ)
    140 #define	SC_FPUSED	(70 * REGSZ)
    141 #define	SC_FPC_EIR	(71 * REGSZ)
    142 
    143 #endif /* __ANDROID__ */
    144 
    145 #endif /* __LANGUAGE_ASSEMBLY */
    146 
    147 #endif	/* !_MIPS_SIGNAL_H_ */
    148