include/asm-powerpc/signal.h

   1 #ifndef _ASM_POWERPC_SIGNAL_H
   2 #define _ASM_POWERPC_SIGNAL_H
   3
   4 #include <linux/types.h>
   5
   6 #define _NSIG           64
   7 #ifdef __powerpc64__
   8 #define _NSIG_BPW       64
   9 #else
  10 #define _NSIG_BPW       32
  11 #endif
  12 #define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
  13
  14 typedef unsigned long old_sigset_t;             /* at least 32 bits */
  15
  16 typedef struct {
  17         unsigned long sig[_NSIG_WORDS];
  18 } sigset_t;
  19
  20 #define SIGHUP           1
  21 #define SIGINT           2
  22 #define SIGQUIT          3
  23 #define SIGILL           4
  24 #define SIGTRAP          5
  25 #define SIGABRT          6
  26 #define SIGIOT           6
  27 #define SIGBUS           7
  28 #define SIGFPE           8
  29 #define SIGKILL          9
  30 #define SIGUSR1         10
  31 #define SIGSEGV         11
  32 #define SIGUSR2         12
  33 #define SIGPIPE         13
  34 #define SIGALRM         14
  35 #define SIGTERM         15
  36 #define SIGSTKFLT       16
  37 #define SIGCHLD         17
  38 #define SIGCONT         18
  39 #define SIGSTOP         19
  40 #define SIGTSTP         20
  41 #define SIGTTIN         21
  42 #define SIGTTOU         22
  43 #define SIGURG          23
  44 #define SIGXCPU         24
  45 #define SIGXFSZ         25
  46 #define SIGVTALRM       26
  47 #define SIGPROF         27
  48 #define SIGWINCH        28
  49 #define SIGIO           29
  50 #define SIGPOLL         SIGIO
  51 /*
  52 #define SIGLOST         29
  53 */
  54 #define SIGPWR          30
  55 #define SIGSYS          31
  56 #define SIGUNUSED       31
  57
  58 /* These should not be considered constants from userland.  */
  59 #define SIGRTMIN        32
  60 #define SIGRTMAX        _NSIG
  61
  62 /*
  63  * SA_FLAGS values:
  64  *
  65  * SA_ONSTACK is not currently supported, but will allow sigaltstack(2).
  66  * SA_RESTART flag to get restarting signals (which were the default long ago)
  67  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
  68  * SA_RESETHAND clears the handler when the signal is delivered.
  69  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
  70  * SA_NODEFER prevents the current signal from being masked in the handler.
  71  *
  72  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
  73  * Unix names RESETHAND and NODEFER respectively.
  74  */
  75 #define SA_NOCLDSTOP    0x00000001U
  76 #define SA_NOCLDWAIT    0x00000002U
  77 #define SA_SIGINFO      0x00000004U
  78 #define SA_ONSTACK      0x08000000U
  79 #define SA_RESTART      0x10000000U
  80 #define SA_NODEFER      0x40000000U
  81 #define SA_RESETHAND    0x80000000U
  82
  83 #define SA_NOMASK       SA_NODEFER
  84 #define SA_ONESHOT      SA_RESETHAND
  85
  86 #define SA_RESTORER     0x04000000U
  87
  88 /*
  89  * sigaltstack controls
  90  */
  91 #define SS_ONSTACK      1
  92 #define SS_DISABLE      2
  93
  94 #define MINSIGSTKSZ     2048
  95 #define SIGSTKSZ        8192
  96
  97 #include <asm-generic/signal.h>
  98
  99 struct old_sigaction {
 100         __sighandler_t sa_handler;
 101         old_sigset_t sa_mask;
 102         unsigned long sa_flags;
 103         __sigrestore_t sa_restorer;
 104 };
 105
 106 struct sigaction {
 107         __sighandler_t sa_handler;
 108         unsigned long sa_flags;
 109         __sigrestore_t sa_restorer;
 110         sigset_t sa_mask;               /* mask last for extensibility */
 111 };
 112
 113 struct k_sigaction {
 114         struct sigaction sa;
 115 };
 116
 117 typedef struct sigaltstack {
 118         void __user *ss_sp;
 119         int ss_flags;
 120         size_t ss_size;
 121 } stack_t;
 122
 123 #ifdef __KERNEL__
 124 struct pt_regs;
 125 extern int do_signal(sigset_t *oldset, struct pt_regs *regs);
 126 extern int do_signal32(sigset_t *oldset, struct pt_regs *regs);
 127 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
 128 #endif /* __KERNEL__ */
 129
 130 #ifndef __powerpc64__
 131 /*
 132  * These are parameters to dbg_sigreturn syscall.  They enable or
 133  * disable certain debugging things that can be done from signal
 134  * handlers.  The dbg_sigreturn syscall *must* be called from a
 135  * SA_SIGINFO signal so the ucontext can be passed to it.  It takes an
 136  * array of struct sig_dbg_op, which has the debug operations to
 137  * perform before returning from the signal.
 138  */
 139 struct sig_dbg_op {
 140         int dbg_type;
 141         unsigned long dbg_value;
 142 };
 143
 144 /* Enable or disable single-stepping.  The value sets the state. */
 145 #define SIG_DBG_SINGLE_STEPPING         1
 146
 147 /* Enable or disable branch tracing.  The value sets the state. */
 148 #define SIG_DBG_BRANCH_TRACING          2
 149 #endif /* ! __powerpc64__ */
 150
 151 #endif /* _ASM_POWERPC_SIGNAL_H */