include/asm-powerpc/signal.h

   1 #ifndef _ASM_POWERPC_SIGNAL_H
   2 #define _ASM_POWERPC_SIGNAL_H
   3
   4 #include <linux/types.h>
   5 #include <linux/config.h>
   6
   7 #define _NSIG           64
   8 #define _NSIG_BPW       BITS_PER_LONG
   9 #define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
  10
  11 typedef unsigned long old_sigset_t;             /* at least 32 bits */
  12
  13 typedef struct {
  14         unsigned long sig[_NSIG_WORDS];
  15 } sigset_t;
  16
  17 #define SIGHUP           1
  18 #define SIGINT           2
  19 #define SIGQUIT          3
  20 #define SIGILL           4
  21 #define SIGTRAP          5
  22 #define SIGABRT          6
  23 #define SIGIOT           6
  24 #define SIGBUS           7
  25 #define SIGFPE           8
  26 #define SIGKILL          9
  27 #define SIGUSR1         10
  28 #define SIGSEGV         11
  29 #define SIGUSR2         12
  30 #define SIGPIPE         13
  31 #define SIGALRM         14
  32 #define SIGTERM         15
  33 #define SIGSTKFLT       16
  34 #define SIGCHLD         17
  35 #define SIGCONT         18
  36 #define SIGSTOP         19
  37 #define SIGTSTP         20
  38 #define SIGTTIN         21
  39 #define SIGTTOU         22
  40 #define SIGURG          23
  41 #define SIGXCPU         24
  42 #define SIGXFSZ         25
  43 #define SIGVTALRM       26
  44 #define SIGPROF         27
  45 #define SIGWINCH        28
  46 #define SIGIO           29
  47 #define SIGPOLL         SIGIO
  48 /*
  49 #define SIGLOST         29
  50 */
  51 #define SIGPWR          30
  52 #define SIGSYS          31
  53 #define SIGUNUSED       31
  54
  55 /* These should not be considered constants from userland.  */
  56 #define SIGRTMIN        32
  57 #define SIGRTMAX        _NSIG
  58
  59 /*
  60  * SA_FLAGS values:
  61  *
  62  * SA_ONSTACK is not currently supported, but will allow sigaltstack(2).
  63  * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
  64  * SA_RESTART flag to get restarting signals (which were the default long ago)
  65  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
  66  * SA_RESETHAND clears the handler when the signal is delivered.
  67  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
  68  * SA_NODEFER prevents the current signal from being masked in the handler.
  69  *
  70  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
  71  * Unix names RESETHAND and NODEFER respectively.
  72  */
  73 #define SA_NOCLDSTOP    0x00000001U
  74 #define SA_NOCLDWAIT    0x00000002U
  75 #define SA_SIGINFO      0x00000004U
  76 #define SA_ONSTACK      0x08000000U
  77 #define SA_RESTART      0x10000000U
  78 #define SA_NODEFER      0x40000000U
  79 #define SA_RESETHAND    0x80000000U
  80
  81 #define SA_NOMASK       SA_NODEFER
  82 #define SA_ONESHOT      SA_RESETHAND
  83 #define SA_INTERRUPT    0x20000000u /* dummy -- ignored */
  84
  85 #define SA_RESTORER     0x04000000U
  86
  87 /*
  88  * sigaltstack controls
  89  */
  90 #define SS_ONSTACK      1
  91 #define SS_DISABLE      2
  92
  93 #define MINSIGSTKSZ     2048
  94 #define SIGSTKSZ        8192
  95
  96 #include <asm-generic/signal.h>
  97
  98 struct old_sigaction {
  99         __sighandler_t sa_handler;
 100         old_sigset_t sa_mask;
 101         unsigned long sa_flags;
 102         __sigrestore_t sa_restorer;
 103 };
 104
 105 struct sigaction {
 106         __sighandler_t sa_handler;
 107         unsigned long sa_flags;
 108         __sigrestore_t sa_restorer;
 109         sigset_t sa_mask;               /* mask last for extensibility */
 110 };
 111
 112 struct k_sigaction {
 113         struct sigaction sa;
 114 };
 115
 116 typedef struct sigaltstack {
 117         void __user *ss_sp;
 118         int ss_flags;
 119         size_t ss_size;
 120 } stack_t;
 121
 122 #ifdef __KERNEL__
 123 struct pt_regs;
 124 extern int do_signal(sigset_t *oldset, struct pt_regs *regs);
 125 extern int do_signal32(sigset_t *oldset, struct pt_regs *regs);
 126 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
 127 #endif /* __KERNEL__ */
 128
 129 #ifndef __powerpc64__
 130 /*
 131  * These are parameters to dbg_sigreturn syscall.  They enable or
 132  * disable certain debugging things that can be done from signal
 133  * handlers.  The dbg_sigreturn syscall *must* be called from a
 134  * SA_SIGINFO signal so the ucontext can be passed to it.  It takes an
 135  * array of struct sig_dbg_op, which has the debug operations to
 136  * perform before returning from the signal.
 137  */
 138 struct sig_dbg_op {
 139         int dbg_type;
 140         unsigned long dbg_value;
 141 };
 142
 143 /* Enable or disable single-stepping.  The value sets the state. */
 144 #define SIG_DBG_SINGLE_STEPPING         1
 145
 146 /* Enable or disable branch tracing.  The value sets the state. */
 147 #define SIG_DBG_BRANCH_TRACING          2
 148 #endif /* ! __powerpc64__ */
 149
 150 #endif /* _ASM_POWERPC_SIGNAL_H */