include/asm-sparc64/signal.h

   1 /* $Id: signal.h,v 1.9 1999/09/06 08:22:11 jj Exp $ */
   2 #ifndef _ASMSPARC64_SIGNAL_H
   3 #define _ASMSPARC64_SIGNAL_H
   4
   5 #include <asm/sigcontext.h>
   6
   7 #ifdef __KERNEL__
   8 #ifndef __ASSEMBLY__
   9 #include <linux/config.h>
  10 #include <linux/personality.h>
  11 #include <linux/types.h>
  12 #include <linux/compat.h>
  13 #endif
  14 #endif
  15
  16 /* On the Sparc the signal handlers get passed a 'sub-signal' code
  17  * for certain signal types, which we document here.
  18  */
  19 #define SIGHUP           1
  20 #define SIGINT           2
  21 #define SIGQUIT          3
  22 #define SIGILL           4
  23 #define    SUBSIG_STACK       0
  24 #define    SUBSIG_ILLINST     2
  25 #define    SUBSIG_PRIVINST    3
  26 #define    SUBSIG_BADTRAP(t)  (0x80 + (t))
  27
  28 #define SIGTRAP          5
  29 #define SIGABRT          6
  30 #define SIGIOT           6
  31
  32 #define SIGEMT           7
  33 #define    SUBSIG_TAG    10
  34
  35 #define SIGFPE           8
  36 #define    SUBSIG_FPDISABLED     0x400
  37 #define    SUBSIG_FPERROR        0x404
  38 #define    SUBSIG_FPINTOVFL      0x001
  39 #define    SUBSIG_FPSTSIG        0x002
  40 #define    SUBSIG_IDIVZERO       0x014
  41 #define    SUBSIG_FPINEXACT      0x0c4
  42 #define    SUBSIG_FPDIVZERO      0x0c8
  43 #define    SUBSIG_FPUNFLOW       0x0cc
  44 #define    SUBSIG_FPOPERROR      0x0d0
  45 #define    SUBSIG_FPOVFLOW       0x0d4
  46
  47 #define SIGKILL          9
  48 #define SIGBUS          10
  49 #define    SUBSIG_BUSTIMEOUT    1
  50 #define    SUBSIG_ALIGNMENT     2
  51 #define    SUBSIG_MISCERROR     5
  52
  53 #define SIGSEGV         11
  54 #define    SUBSIG_NOMAPPING     3
  55 #define    SUBSIG_PROTECTION    4
  56 #define    SUBSIG_SEGERROR      5
  57
  58 #define SIGSYS          12
  59
  60 #define SIGPIPE         13
  61 #define SIGALRM         14
  62 #define SIGTERM         15
  63 #define SIGURG          16
  64
  65 /* SunOS values which deviate from the Linux/i386 ones */
  66 #define SIGSTOP         17
  67 #define SIGTSTP         18
  68 #define SIGCONT         19
  69 #define SIGCHLD         20
  70 #define SIGTTIN         21
  71 #define SIGTTOU         22
  72 #define SIGIO           23
  73 #define SIGPOLL         SIGIO   /* SysV name for SIGIO */
  74 #define SIGXCPU         24
  75 #define SIGXFSZ         25
  76 #define SIGVTALRM       26
  77 #define SIGPROF         27
  78 #define SIGWINCH        28
  79 #define SIGLOST         29
  80 #define SIGPWR          SIGLOST
  81 #define SIGUSR1         30
  82 #define SIGUSR2         31
  83
  84 /* Most things should be clean enough to redefine this at will, if care
  85    is taken to make libc match.  */
  86
  87 #define __OLD_NSIG      32
  88 #define __NEW_NSIG      64
  89 #define _NSIG_BPW       64
  90 #define _NSIG_WORDS     (__NEW_NSIG / _NSIG_BPW)
  91
  92 #define SIGRTMIN       32
  93 #define SIGRTMAX       __NEW_NSIG
  94
  95 #if defined(__KERNEL__) || defined(__WANT_POSIX1B_SIGNALS__)
  96 #define _NSIG                   __NEW_NSIG
  97 #define __new_sigset_t          sigset_t
  98 #define __new_sigaction         sigaction
  99 #define __new_sigaction32       sigaction32
 100 #define __old_sigset_t          old_sigset_t
 101 #define __old_sigaction         old_sigaction
 102 #define __old_sigaction32       old_sigaction32
 103 #else
 104 #define _NSIG                   __OLD_NSIG
 105 #define NSIG                    _NSIG
 106 #define __old_sigset_t          sigset_t
 107 #define __old_sigaction         sigaction
 108 #define __old_sigaction32       sigaction32
 109 #endif
 110
 111 #ifndef __ASSEMBLY__
 112
 113 typedef unsigned long __old_sigset_t;            /* at least 32 bits */
 114
 115 typedef struct {
 116        unsigned long sig[_NSIG_WORDS];
 117 } __new_sigset_t;
 118
 119 /* A SunOS sigstack */
 120 struct sigstack {
 121         /* XXX 32-bit pointers pinhead XXX */
 122         char *the_stack;
 123         int   cur_status;
 124 };
 125
 126 /* Sigvec flags */
 127 #define _SV_SSTACK    1u    /* This signal handler should use sig-stack */
 128 #define _SV_INTR      2u    /* Sig return should not restart system call */
 129 #define _SV_RESET     4u    /* Set handler to SIG_DFL upon taken signal */
 130 #define _SV_IGNCHILD  8u    /* Do not send SIGCHLD */
 131
 132 /*
 133  * sa_flags values: SA_STACK is not currently supported, but will allow the
 134  * usage of signal stacks by using the (now obsolete) sa_restorer field in
 135  * the sigaction structure as a stack pointer. This is now possible due to
 136  * the changes in signal handling. LBT 010493.
 137  * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
 138  * SA_RESTART flag to get restarting signals (which were the default long ago)
 139  * SA_SHIRQ flag is for shared interrupt support on PCI and EISA.
 140  */
 141 #define SA_NOCLDSTOP    _SV_IGNCHILD
 142 #define SA_STACK        _SV_SSTACK
 143 #define SA_ONSTACK      _SV_SSTACK
 144 #define SA_RESTART      _SV_INTR
 145 #define SA_ONESHOT      _SV_RESET
 146 #define SA_INTERRUPT    0x10u
 147 #define SA_NOMASK       0x20u
 148 #define SA_SHIRQ        0x40u
 149 #define SA_NOCLDWAIT    0x100u
 150 #define SA_SIGINFO      0x200u
 151
 152
 153 #define SIG_BLOCK          0x01 /* for blocking signals */
 154 #define SIG_UNBLOCK        0x02 /* for unblocking signals */
 155 #define SIG_SETMASK        0x04 /* for setting the signal mask */
 156
 157 /*
 158  * sigaltstack controls
 159  */
 160 #define SS_ONSTACK      1
 161 #define SS_DISABLE      2
 162
 163 #define MINSIGSTKSZ     4096
 164 #define SIGSTKSZ        16384
 165
 166 #ifdef __KERNEL__
 167 /*
 168  * These values of sa_flags are used only by the kernel as part of the
 169  * irq handling routines.
 170  *
 171  * SA_INTERRUPT is also used by the irq handling routines.
 172  *
 173  * DJHR
 174  * SA_STATIC_ALLOC is used for the SPARC system to indicate that this
 175  * interrupt handler's irq structure should be statically allocated
 176  * by the request_irq routine.
 177  * The alternative is that arch/sparc/kernel/irq.c has carnal knowledge
 178  * of interrupt usage and that sucks. Also without a flag like this
 179  * it may be possible for the free_irq routine to attempt to free
 180  * statically allocated data.. which is NOT GOOD.
 181  *
 182  */
 183 #define SA_PROBE SA_ONESHOT
 184 #define SA_SAMPLE_RANDOM SA_RESTART
 185 #define SA_STATIC_ALLOC         0x80
 186 #endif
 187
 188 /* Type of a signal handler.  */
 189 #ifdef __KERNEL__
 190 typedef void __signalfn_t(int);
 191 typedef __signalfn_t __user *__sighandler_t;
 192
 193 typedef void __restorefn_t(void);
 194 typedef __restorefn_t __user *__sigrestore_t;
 195 #else
 196 typedef void (*__sighandler_t)(int);
 197 typedef void (*__sigrestore_t)(void);
 198 #endif
 199
 200 #define SIG_DFL ((__sighandler_t)0)     /* default signal handling */
 201 #define SIG_IGN ((__sighandler_t)1)     /* ignore signal */
 202 #define SIG_ERR ((__sighandler_t)-1)    /* error return from signal */
 203
 204 struct __new_sigaction {
 205         __sighandler_t          sa_handler;
 206         unsigned long           sa_flags;
 207         __sigrestore_t          sa_restorer;  /* not used by Linux/SPARC yet */
 208         __new_sigset_t          sa_mask;
 209 };
 210
 211 #ifdef __KERNEL__
 212
 213 #ifdef CONFIG_COMPAT
 214 struct __new_sigaction32 {
 215         unsigned                sa_handler;
 216         unsigned int            sa_flags;
 217         unsigned                sa_restorer;     /* not used by Linux/SPARC yet */
 218         compat_sigset_t         sa_mask;
 219 };
 220 #endif
 221
 222 struct k_sigaction {
 223         struct __new_sigaction  sa;
 224         void __user             *ka_restorer;
 225 };
 226 #endif
 227
 228 struct __old_sigaction {
 229         __sighandler_t          sa_handler;
 230         __old_sigset_t          sa_mask;
 231         unsigned long           sa_flags;
 232         void                    (*sa_restorer)(void);     /* not used by Linux/SPARC yet */
 233 };
 234
 235 #ifdef __KERNEL__
 236
 237 #ifdef CONFIG_COMPAT
 238 struct __old_sigaction32 {
 239         unsigned                sa_handler;
 240         compat_old_sigset_t     sa_mask;
 241         unsigned int            sa_flags;
 242         unsigned                sa_restorer;     /* not used by Linux/SPARC yet */
 243 };
 244 #endif
 245
 246 #endif
 247
 248 typedef struct sigaltstack {
 249         void                    __user *ss_sp;
 250         int                     ss_flags;
 251         size_t                  ss_size;
 252 } stack_t;
 253
 254 #ifdef __KERNEL__
 255
 256 #ifdef CONFIG_COMPAT
 257 typedef struct sigaltstack32 {
 258         u32                     ss_sp;
 259         int                     ss_flags;
 260         compat_size_t           ss_size;
 261 } stack_t32;
 262 #endif
 263
 264 struct signal_deliver_cookie {
 265         int restart_syscall;
 266         unsigned long orig_i0;
 267 };
 268
 269 struct pt_regs;
 270 extern void ptrace_signal_deliver(struct pt_regs *regs, void *cookie);
 271
 272 #endif /* !(__KERNEL__) */
 273
 274 #endif /* !(__ASSEMBLY__) */
 275
 276 #endif /* !(_ASMSPARC64_SIGNAL_H) */