sys/arch/arm/include/signal.h

   1 /*      $NetBSD: signal.h,v 1.13 2014/01/29 00:42:15 matt Exp $ */
   2
   3 /*
   4  * Copyright (c) 1994-1996 Mark Brinicombe.
   5  * Copyright (c) 1994 Brini.
   6  * All rights reserved.
   7  *
   8  * This code is derived from software written for Brini by Mark Brinicombe
   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 Brini.
  21  * 4. The name of the company nor the name of the author may be used to
  22  *    endorse or promote products derived from this software without specific
  23  *    prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
  26  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  27  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  28  * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  29  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  30  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  31  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35  * SUCH DAMAGE.
  36  *
  37  * RiscBSD kernel project
  38  *
  39  * signal.h
  40  *
  41  * Architecture dependent signal types and structures
  42  *
  43  * Created      : 30/09/94
  44  */
  45
  46 #ifndef _ARM_SIGNAL_H_
  47 #define _ARM_SIGNAL_H_
  48
  49 #include <sys/featuretest.h>
  50
  51 #ifndef _LOCORE
  52 typedef int sig_atomic_t;
  53 #endif
  54
  55 #if defined(_NETBSD_SOURCE)
  56
  57 #ifndef _LOCORE
  58 /*
  59  * Information pushed on stack when a signal is delivered.
  60  * This is used by the kernel to restore state following
  61  * execution of the signal handler.  It is also made available
  62  * to the handler to allow it to restore state properly if
  63  * a non-standard exit is performed.
  64  */
  65
  66 #if defined(__LIBC12_SOURCE__) || defined(_KERNEL)
  67 struct sigcontext13 {
  68         int     sc_onstack;             /* sigstack state to restore */
  69         int     sc_mask;                /* signal mask to restore (old style) */
  70
  71         unsigned int sc_spsr;
  72         unsigned int sc_r0;
  73         unsigned int sc_r1;
  74         unsigned int sc_r2;
  75         unsigned int sc_r3;
  76         unsigned int sc_r4;
  77         unsigned int sc_r5;
  78         unsigned int sc_r6;
  79         unsigned int sc_r7;
  80         unsigned int sc_r8;
  81         unsigned int sc_r9;
  82         unsigned int sc_r10;
  83         unsigned int sc_r11;
  84         unsigned int sc_r12;
  85         unsigned int sc_usr_sp;
  86         unsigned int sc_usr_lr;
  87         unsigned int sc_svc_lr;
  88         unsigned int sc_pc;
  89 };
  90 #endif /* __LIBC12_SOURCE__ || _KERNEL */
  91
  92 struct sigcontext {
  93         int     sc_onstack;             /* sigstack state to restore */
  94         int     __sc_mask13;            /* signal mask to restore (old style) */
  95
  96         unsigned int sc_spsr;
  97         unsigned int sc_r0;
  98         unsigned int sc_r1;
  99         unsigned int sc_r2;
 100         unsigned int sc_r3;
 101         unsigned int sc_r4;
 102         unsigned int sc_r5;
 103         unsigned int sc_r6;
 104         unsigned int sc_r7;
 105         unsigned int sc_r8;
 106         unsigned int sc_r9;
 107         unsigned int sc_r10;
 108         unsigned int sc_r11;
 109         unsigned int sc_r12;
 110         unsigned int sc_usr_sp;
 111         unsigned int sc_usr_lr;
 112         unsigned int sc_svc_lr;
 113         unsigned int sc_pc;
 114
 115         sigset_t sc_mask;               /* signal mask to restore (new style) */
 116 #ifdef __minix
 117 #define SC_MAGIC       0xc0ffee2
 118        int sc_magic;
 119        int sc_flags;
 120        int trap_style;
 121 #endif
 122 };
 123
 124 #endif /* !_LOCORE */
 125
 126 /* Signals codes */
 127
 128 /*
 129  * SIGFPE codes
 130  *
 131  * see ieeefp.h for definition of FP exception codes
 132  */
 133
 134 #define SIG_CODE_FPE_CODE_MASK  0x00000f00      /* Mask for exception code */
 135 #define SIG_CODE_FPE_CODE_SHIFT 8               /* Shift for exception code */
 136 #define SIG_CODE_FPE_TYPE_MASK  0x000000ff      /* Mask for specific code */
 137
 138 /*
 139  * SIGILL codes
 140  *
 141  * the signal code is the instruction that raised the signal
 142  */
 143
 144 /*
 145  * SIGBUS and SIGSEGV codes
 146  *
 147  * The signal code is combination of the fault address and the fault code.
 148  *
 149  * The fault code is the coproc #15 fault status code
 150  *
 151  * The exception to this is a SIGBUS or SIGSEGV from a prefetch abort.
 152  * In this case the fault status code is not valid so the TYPE_MASK
 153  * should be treated as undefined (in practice it is the bottom 4 bits
 154  * of the fault address).
 155  */
 156
 157 #define SIG_CODE_BUS_ADDR_MASK  0xfffffff0
 158 #define SIG_CODE_BUS_TYPE_MASK  0x0000000f
 159 #define SIG_CODE_SEGV_ADDR_MASK SIG_CODE_BUS_ADDR_MASK
 160 #define SIG_CODE_SEGV_TYPE_MASK SIG_CODE_BUS_TYPE_MASK
 161
 162 #endif  /* _NETBSD_SOURCE */
 163
 164 #if defined(__minix)
 165 __BEGIN_DECLS
 166 int sigreturn(struct sigcontext *_scp);
 167 __END_DECLS
 168 #endif /* defined(__minix) */
 169
 170 #endif  /* !_ARM_SIGNAL_H_ */
 171
 172 /* End of signal.h */