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/personality.h>
  10 #include <linux/types.h>
  11 #endif
  12 #endif
  13
  14 /* On the Sparc the signal handlers get passed a 'sub-signal' code
  15  * for certain signal types, which we document here.
  16  */
  17 #define SIGHUP           1
  18 #define SIGINT           2
  19 #define SIGQUIT          3
  20 #define SIGILL           4
  21 #define    SUBSIG_STACK       0
  22 #define    SUBSIG_ILLINST     2
  23 #define    SUBSIG_PRIVINST    3
  24 #define    SUBSIG_BADTRAP(t)  (0x80 + (t))
  25
  26 #define SIGTRAP          5
  27 #define SIGABRT          6
  28 #define SIGIOT           6
  29
  30 #define SIGEMT           7
  31 #define    SUBSIG_TAG    10
  32
  33 #define SIGFPE           8
  34 #define    SUBSIG_FPDISABLED     0x400
  35 #define    SUBSIG_FPERROR        0x404
  36 #define    SUBSIG_FPINTOVFL      0x001
  37 #define    SUBSIG_FPSTSIG        0x002
  38 #define    SUBSIG_IDIVZERO       0x014
  39 #define    SUBSIG_FPINEXACT      0x0c4
  40 #define    SUBSIG_FPDIVZERO      0x0c8
  41 #define    SUBSIG_FPUNFLOW       0x0cc
  42 #define    SUBSIG_FPOPERROR      0x0d0
  43 #define    SUBSIG_FPOVFLOW       0x0d4
  44
  45 #define SIGKILL          9
  46 #define SIGBUS          10
  47 #define    SUBSIG_BUSTIMEOUT    1
  48 #define    SUBSIG_ALIGNMENT     2
  49 #define    SUBSIG_MISCERROR     5
  50
  51 #define SIGSEGV         11
  52 #define    SUBSIG_NOMAPPING     3
  53 #define    SUBSIG_PROTECTION    4
  54 #define    SUBSIG_SEGERROR      5
  55
  56 #define SIGSYS          12
  57
  58 #define SIGPIPE         13
  59 #define SIGALRM         14
  60 #define SIGTERM         15
  61 #define SIGURG          16
  62
  63 /* SunOS values which deviate from the Linux/i386 ones */
  64 #define SIGSTOP         17
  65 #define SIGTSTP         18
  66 #define SIGCONT         19
  67 #define SIGCHLD         20
  68 #define SIGTTIN         21
  69 #define SIGTTOU         22
  70 #define SIGIO           23
  71 #define SIGPOLL         SIGIO   /* SysV name for SIGIO */
  72 #define SIGXCPU         24
  73 #define SIGXFSZ         25
  74 #define SIGVTALRM       26
  75 #define SIGPROF         27
  76 #define SIGWINCH        28
  77 #define SIGLOST         29
  78 #define SIGPWR          SIGLOST
  79 #define SIGUSR1         30
  80 #define SIGUSR2         31
  81
  82 /* Most things should be clean enough to redefine this at will, if care
  83    is taken to make libc match.  */
  84
  85 #define __OLD_NSIG      32
  86 #define __NEW_NSIG      64
  87 #define _NSIG_BPW       64
  88 #define _NSIG_WORDS     (__NEW_NSIG / _NSIG_BPW)
  89
  90 #define _NSIG_BPW32     32
  91 #define _NSIG_WORDS32   (__NEW_NSIG / _NSIG_BPW32)
  92
  93 #define SIGRTMIN       32
  94 #define SIGRTMAX       (__NEW_NSIG - 1)
  95
  96 #if defined(__KERNEL__) || defined(__WANT_POSIX1B_SIGNALS__)
  97 #define _NSIG                   __NEW_NSIG
  98 #define __new_sigset_t          sigset_t
  99 #define __new_sigset_t32        sigset_t32
 100 #define __new_sigaction         sigaction
 101 #define __new_sigaction32       sigaction32
 102 #define __old_sigset_t          old_sigset_t
 103 #define __old_sigset_t32        old_sigset_t32
 104 #define __old_sigaction         old_sigaction
 105 #define __old_sigaction32       old_sigaction32
 106 #else
 107 #define _NSIG                   __OLD_NSIG
 108 #define NSIG                    _NSIG
 109 #define __old_sigset_t          sigset_t
 110 #define __old_sigset_t32        sigset_t32
 111 #define __old_sigaction         sigaction
 112 #define __old_sigaction32       sigaction32
 113 #endif
 114
 115 #ifndef __ASSEMBLY__
 116
 117 typedef unsigned long __old_sigset_t;            /* at least 32 bits */
 118 typedef unsigned int __old_sigset_t32;
 119
 120 typedef struct {
 121        unsigned long sig[_NSIG_WORDS];
 122 } __new_sigset_t;
 123
 124 typedef struct {
 125        unsigned int sig[_NSIG_WORDS32];
 126 } __new_sigset_t32;
 127
 128 /* A SunOS sigstack */
 129 struct sigstack {
 130         /* XXX 32-bit pointers pinhead XXX */
 131         char *the_stack;
 132         int   cur_status;
 133 };
 134
 135 /* Sigvec flags */
 136 #define SV_SSTACK    1     /* This signal handler should use sig-stack */
 137 #define SV_INTR      2     /* Sig return should not restart system call */
 138 #define SV_RESET     4     /* Set handler to SIG_DFL upon taken signal */
 139 #define SV_IGNCHILD  8     /* Do not send SIGCHLD */
 140
 141 /*
 142  * sa_flags values: SA_STACK is not currently supported, but will allow the
 143  * usage of signal stacks by using the (now obsolete) sa_restorer field in
 144  * the sigaction structure as a stack pointer. This is now possible due to
 145  * the changes in signal handling. LBT 010493.
 146  * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
 147  * SA_RESTART flag to get restarting signals (which were the default long ago)
 148  * SA_SHIRQ flag is for shared interrupt support on PCI and EISA.
 149  */
 150 #define SA_NOCLDSTOP    SV_IGNCHILD
 151 #define SA_STACK        SV_SSTACK
 152 #define SA_ONSTACK      SV_SSTACK
 153 #define SA_RESTART      SV_INTR
 154 #define SA_ONESHOT      SV_RESET
 155 #define SA_INTERRUPT    0x10
 156 #define SA_NOMASK       0x20
 157 #define SA_SHIRQ        0x40
 158 #define SA_NOCLDWAIT    0x100 /* not supported yet */
 159 #define SA_SIGINFO      0x200
 160
 161
 162 #define SIG_BLOCK          0x01 /* for blocking signals */
 163 #define SIG_UNBLOCK        0x02 /* for unblocking signals */
 164 #define SIG_SETMASK        0x04 /* for setting the signal mask */
 165
 166 /*
 167  * sigaltstack controls
 168  */
 169 #define SS_ONSTACK      1
 170 #define SS_DISABLE      2
 171
 172 #define MINSIGSTKSZ     4096
 173 #define SIGSTKSZ        16384
 174
 175 #ifdef __KERNEL__
 176 /*
 177  * These values of sa_flags are used only by the kernel as part of the
 178  * irq handling routines.
 179  *
 180  * SA_INTERRUPT is also used by the irq handling routines.
 181  *
 182  * DJHR
 183  * SA_STATIC_ALLOC is used for the SPARC system to indicate that this
 184  * interrupt handler's irq structure should be statically allocated
 185  * by the request_irq routine.
 186  * The alternative is that arch/sparc/kernel/irq.c has carnal knowledge
 187  * of interrupt usage and that sucks. Also without a flag like this
 188  * it may be possible for the free_irq routine to attempt to free
 189  * statically allocated data.. which is NOT GOOD.
 190  *
 191  */
 192 #define SA_PROBE SA_ONESHOT
 193 #define SA_SAMPLE_RANDOM SA_RESTART
 194 #define SA_STATIC_ALLOC         0x80
 195 #endif
 196
 197 /* Type of a signal handler.  */
 198 #ifdef __KERNEL__
 199 typedef void (*__sighandler_t)(int, struct sigcontext *);
 200 #else
 201 typedef void (*__sighandler_t)(int);
 202 #endif
 203
 204 #define SIG_DFL ((__sighandler_t)0)     /* default signal handling */
 205 #define SIG_IGN ((__sighandler_t)1)     /* ignore signal */
 206 #define SIG_ERR ((__sighandler_t)-1)    /* error return from signal */
 207
 208 struct __new_sigaction {
 209         __sighandler_t          sa_handler;
 210         unsigned long           sa_flags;
 211         void                    (*sa_restorer)(void);     /* not used by Linux/SPARC yet */
 212         __new_sigset_t          sa_mask;
 213 };
 214
 215 struct __new_sigaction32 {
 216         unsigned                sa_handler;
 217         unsigned int            sa_flags;
 218         unsigned                sa_restorer;     /* not used by Linux/SPARC yet */
 219         __new_sigset_t32        sa_mask;
 220 };
 221
 222 #ifdef __KERNEL__
 223 struct k_sigaction {
 224         struct __new_sigaction  sa;
 225         void                    *ka_restorer;
 226 };
 227 #endif
 228
 229 struct __old_sigaction {
 230         __sighandler_t          sa_handler;
 231         __old_sigset_t          sa_mask;
 232         unsigned long           sa_flags;
 233         void                    (*sa_restorer)(void);     /* not used by Linux/SPARC yet */
 234 };
 235
 236 struct __old_sigaction32 {
 237         unsigned                sa_handler;
 238         __old_sigset_t32        sa_mask;
 239         unsigned int            sa_flags;
 240         unsigned                sa_restorer;     /* not used by Linux/SPARC yet */
 241 };
 242
 243 typedef struct sigaltstack {
 244         void                    *ss_sp;
 245         int                     ss_flags;
 246         size_t                  ss_size;
 247 } stack_t;
 248
 249 #ifdef __KERNEL__
 250 typedef struct sigaltstack32 {
 251         u32                     ss_sp;
 252         int                     ss_flags;
 253         __kernel_size_t32       ss_size;
 254 } stack_t32;
 255 #endif
 256
 257 #endif /* !(__ASSEMBLY__) */
 258
 259 #endif /* !(_ASMSPARC64_SIGNAL_H) */