include/asm-ppc64/signal.h

   1 #ifndef _ASMPPC64_SIGNAL_H
   2 #define _ASMPPC64_SIGNAL_H
   3
   4 #include <linux/types.h>
   5 #include <linux/compiler.h>
   6 #include <asm/siginfo.h>
   7
   8 /* Avoid too many header ordering problems.  */
   9 struct siginfo;
  10
  11 #define _NSIG           64
  12 #define _NSIG_BPW       64
  13 #define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
  14
  15 typedef unsigned long old_sigset_t;             /* at least 32 bits */
  16
  17 typedef struct {
  18         unsigned long sig[_NSIG_WORDS];
  19 } sigset_t;
  20
  21 #define SIGHUP           1
  22 #define SIGINT           2
  23 #define SIGQUIT          3
  24 #define SIGILL           4
  25 #define SIGTRAP          5
  26 #define SIGABRT          6
  27 #define SIGIOT           6
  28 #define SIGBUS           7
  29 #define SIGFPE           8
  30 #define SIGKILL          9
  31 #define SIGUSR1         10
  32 #define SIGSEGV         11
  33 #define SIGUSR2         12
  34 #define SIGPIPE         13
  35 #define SIGALRM         14
  36 #define SIGTERM         15
  37 #define SIGSTKFLT       16
  38 #define SIGCHLD         17
  39 #define SIGCONT         18
  40 #define SIGSTOP         19
  41 #define SIGTSTP         20
  42 #define SIGTTIN         21
  43 #define SIGTTOU         22
  44 #define SIGURG          23
  45 #define SIGXCPU         24
  46 #define SIGXFSZ         25
  47 #define SIGVTALRM       26
  48 #define SIGPROF         27
  49 #define SIGWINCH        28
  50 #define SIGIO           29
  51 #define SIGPOLL         SIGIO
  52 /*
  53 #define SIGLOST         29
  54 */
  55 #define SIGPWR          30
  56 #define SIGSYS          31
  57 #define SIGUNUSED       31
  58
  59 /* These should not be considered constants from userland.  */
  60 #define SIGRTMIN        32
  61 #define SIGRTMAX        _NSIG
  62
  63 /*
  64  * SA_FLAGS values:
  65  *
  66  * SA_ONSTACK is not currently supported, but will allow sigaltstack(2).
  67  * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
  68  * SA_RESTART flag to get restarting signals (which were the default long ago)
  69  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
  70  * SA_RESETHAND clears the handler when the signal is delivered.
  71  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
  72  * SA_NODEFER prevents the current signal from being masked in the handler.
  73  *
  74  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
  75  * Unix names RESETHAND and NODEFER respectively.
  76  */
  77 #define SA_NOCLDSTOP    0x00000001u
  78 #define SA_NOCLDWAIT    0x00000002u
  79 #define SA_SIGINFO      0x00000004u
  80 #define SA_ONSTACK      0x08000000u
  81 #define SA_RESTART      0x10000000u
  82 #define SA_NODEFER      0x40000000u
  83 #define SA_RESETHAND    0x80000000u
  84
  85 #define SA_NOMASK       SA_NODEFER
  86 #define SA_ONESHOT      SA_RESETHAND
  87 #define SA_INTERRUPT    0x20000000u /* dummy -- ignored */
  88
  89 #define SA_RESTORER     0x04000000u
  90
  91 /*
  92  * sigaltstack controls
  93  */
  94 #define SS_ONSTACK      1
  95 #define SS_DISABLE      2
  96
  97 #define MINSIGSTKSZ     2048
  98 #define SIGSTKSZ        8192
  99 #ifdef __KERNEL__
 100
 101 /*
 102  * These values of sa_flags are used only by the kernel as part of the
 103  * irq handling routines.
 104  *
 105  * SA_INTERRUPT is also used by the irq handling routines.
 106  * SA_SHIRQ is for shared interrupt support on PCI and EISA.
 107  */
 108 #define SA_PROBE                SA_ONESHOT
 109 #define SA_SAMPLE_RANDOM        SA_RESTART
 110 #define SA_SHIRQ                0x04000000
 111 #endif
 112
 113 #define SIG_BLOCK          0    /* for blocking signals */
 114 #define SIG_UNBLOCK        1    /* for unblocking signals */
 115 #define SIG_SETMASK        2    /* for setting the signal mask */
 116
 117 /* Type of a signal handler.  */
 118 typedef void __sigfunction(int);
 119 typedef __sigfunction __user * __sighandler_t;
 120
 121 /* Type of the restorer function */
 122 typedef void __sigrestorer(void);
 123 typedef __sigrestorer __user * __sigrestorer_t;
 124
 125 #define SIG_DFL ((__sighandler_t)0)     /* default signal handling */
 126 #define SIG_IGN ((__sighandler_t)1)     /* ignore signal */
 127 #define SIG_ERR ((__sighandler_t)-1)    /* error return from signal */
 128
 129 struct old_sigaction {
 130         __sighandler_t sa_handler;
 131         old_sigset_t sa_mask;
 132         unsigned long sa_flags;
 133         __sigrestorer_t sa_restorer;
 134 };
 135
 136 struct sigaction {
 137         __sighandler_t sa_handler;
 138         unsigned long sa_flags;
 139         __sigrestorer_t sa_restorer;
 140         sigset_t sa_mask;               /* mask last for extensibility */
 141 };
 142
 143 struct k_sigaction {
 144         struct sigaction sa;
 145 };
 146
 147 typedef struct sigaltstack {
 148         void __user *ss_sp;
 149         int ss_flags;
 150         size_t ss_size;
 151 } stack_t;
 152
 153 struct pt_regs;
 154 struct timespec;
 155 extern int do_signal(sigset_t *oldset, struct pt_regs *regs);
 156 extern int do_signal32(sigset_t *oldset, struct pt_regs *regs);
 157 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
 158
 159 #endif /* _ASMPPC64_SIGNAL_H */