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linux_signal.h revision 1.14 
      1 /* $NetBSD: linux_signal.h,v 1.14 2015/11/14 13:29:35 christos Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1995, 1998, 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Frank van der Linden, Eric Haszlakiewicz and Emmanuel Dreyfus.
      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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _MIPS_LINUX_SIGNAL_H
     33 #define _MIPS_LINUX_SIGNAL_H
     34 
     35 /*
     36  * From Linux's include/asm-mips/ptrace.h
     37  */
     38 struct linux_pt_regs {
     39 	unsigned long lpad0[6];
     40 	unsigned long lregs[32];
     41 	unsigned long llo;
     42 	unsigned long lhi;
     43 	unsigned long lcp0_epc;
     44 	unsigned long lcp0_badvaddr;
     45 	unsigned long lcp0_status;
     46 	unsigned long lcp0_cause;
     47 };
     48 
     49 /*
     50  * Everything is from Linux's include/asm-mips/signal.h
     51  */
     52 #define LINUX_SIGHUP	 	1
     53 #define LINUX_SIGINT		2
     54 #define LINUX_SIGQUIT		3
     55 #define LINUX_SIGILL		4
     56 #define LINUX_SIGTRAP		5
     57 #define LINUX_SIGABRT		6
     58 #define LINUX_SIGIOT		6
     59 #define LINUX_SIGEMT		7
     60 #define LINUX_SIGFPE		8
     61 #define LINUX_SIGKILL		9
     62 #define LINUX_SIGBUS		10
     63 #define LINUX_SIGSEGV		11
     64 #define LINUX_SIGSYS		12
     65 #define LINUX_SIGPIPE		13
     66 #define LINUX_SIGALRM		14
     67 #define LINUX_SIGTERM		15
     68 #define LINUX_SIGUSR1		16
     69 #define LINUX_SIGUSR2		17
     70 #define LINUX_SIGCHLD		18
     71 #define LINUX_SIGCLD		18
     72 #define LINUX_SIGPWR		19
     73 #define LINUX_SIGWINCH		20
     74 #define LINUX_SIGURG		21
     75 #define LINUX_SIGIO		22
     76 #define LINUX_SIGPOLL		22
     77 #define LINUX_SIGSTOP		23
     78 #define LINUX_SIGTSTP		24
     79 #define LINUX_SIGCONT		25
     80 #define LINUX_SIGTTIN		26
     81 #define LINUX_SIGTTOU		27
     82 #define LINUX_SIGVTALRM		28
     83 #define LINUX_SIGPROF		29
     84 #define LINUX_SIGXCPU		30
     85 #define LINUX_SIGXFSZ		31
     86 
     87 /* Min/max real-time linux signal */
     88 #define LINUX_SIGRTMIN		32
     89 #define LINUX_SIGRTMAX		(LINUX__NSIG - 1)
     90 
     91 #define LINUX__NSIG		128
     92 #if defined(ELFSIZE) && (ELFSIZE == 64)
     93 #define LINUX__NSIG_BPW		64
     94 #else
     95 #define LINUX__NSIG_BPW		32
     96 #endif
     97 #define LINUX__NSIG_WORDS (LINUX__NSIG / LINUX__NSIG_BPW)
     98 
     99 #define LINUX_SIG_BLOCK		1
    100 #define LINUX_SIG_UNBLOCK	2
    101 #define LINUX_SIG_SETMASK	3
    102 
    103 /* sa_flags */
    104 #define LINUX_SA_NOCLDSTOP	0x00000001
    105 #define LINUX_SA_SIGINFO	0x00000008
    106 #define LINUX_SA_NOCLDWAIT	0x00010000
    107 #define LINUX_SA_ONSTACK	0x08000000
    108 #define LINUX_SA_RESTART	0x10000000
    109 #define LINUX_SA_NODEFER	0x40000000
    110 #define LINUX_SA_RESETHAND	0x80000000
    111 #define LINUX_SA_NOMASK		LINUX_SA_NODEFER
    112 #define LINUX_SA_ONESHOT	LINUX_SA_RESETHAND
    113 #define LINUX_SA_ALLBITS	0xd8010009
    114 /* XXX LINUX_SA_RESTORER has been deprecated; not used any version of glibc */
    115 
    116 #define	LINUX_MINSIGSTKSZ	2048
    117 
    118 typedef void (*linux___sighandler_t)(int);
    119 
    120 typedef unsigned long linux_old_sigset_t;
    121 typedef struct {
    122 	unsigned long sig[LINUX__NSIG_WORDS];
    123 } linux_sigset_t;
    124 
    125 /* Used in rt_* calls. No old_sigaction is defined for MIPS */
    126 struct linux_sigaction {
    127 	unsigned int		linux_sa_flags;
    128 	linux___sighandler_t	linux_sa_handler;
    129 	linux_sigset_t		linux_sa_mask;
    130 	void			(*linux_sa_restorer)(void);
    131 	int			linux_sa_resv[1];
    132 };
    133 
    134 struct linux_k_sigaction {
    135 	struct linux_sigaction sa;
    136 };
    137 
    138 struct linux_old_sigaction {
    139 	unsigned int		linux_sa_flags;
    140 	linux___sighandler_t	linux_sa_handler;
    141 	linux_old_sigset_t	linux_sa_mask;
    142 	void			(*linux_sa_restorer)(void);
    143 	int			linux_sa_resv[1];
    144 };
    145 
    146 #define	LINUX_SS_ONSTACK	1
    147 #define	LINUX_SS_DISABLE	2
    148 
    149 #define	LINUX_MINSIGSTKSZ	2048
    150 #define	LINUX_SIGSTKSZ		8192
    151 
    152 struct linux_sigaltstack {
    153 	void *ss_sp;
    154 	size_t ss_size;
    155 	int ss_flags;
    156 };
    157 typedef struct linux_sigaltstack linux_stack_t; /* XXX really needed ? */
    158 
    159 #endif /* !_MIPS_LINUX_SIGNAL_H */
    160