#ifndef _ASM_POWERPC_SIGNAL_H
  #define _ASM_POWERPC_SIGNAL_H

  #include <linux/types.h>

  
  #define _NSIG		64

  #ifdef __powerpc64__
  #define _NSIG_BPW	64
  #else
  #define _NSIG_BPW	32
  #endif

  #define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
  
  typedef unsigned long old_sigset_t;		/* at least 32 bits */
  
  typedef struct {
  	unsigned long sig[_NSIG_WORDS];
  } sigset_t;
  
  #define SIGHUP		 1
  #define SIGINT		 2
  #define SIGQUIT		 3
  #define SIGILL		 4
  #define SIGTRAP		 5
  #define SIGABRT		 6
  #define SIGIOT		 6
  #define SIGBUS		 7
  #define SIGFPE		 8
  #define SIGKILL		 9
  #define SIGUSR1		10
  #define SIGSEGV		11
  #define SIGUSR2		12
  #define SIGPIPE		13
  #define SIGALRM		14
  #define SIGTERM		15
  #define SIGSTKFLT	16
  #define SIGCHLD		17
  #define SIGCONT		18
  #define SIGSTOP		19
  #define SIGTSTP		20
  #define SIGTTIN		21
  #define SIGTTOU		22
  #define SIGURG		23
  #define SIGXCPU		24
  #define SIGXFSZ		25
  #define SIGVTALRM	26
  #define SIGPROF		27
  #define SIGWINCH	28
  #define SIGIO		29
  #define SIGPOLL		SIGIO
  /*
  #define SIGLOST		29
  */
  #define SIGPWR		30
  #define SIGSYS		31
  #define	SIGUNUSED	31
  
  /* These should not be considered constants from userland.  */
  #define SIGRTMIN	32
  #define SIGRTMAX	_NSIG
  
  /*
   * SA_FLAGS values:
   *
   * SA_ONSTACK is not currently supported, but will allow sigaltstack(2).

   * SA_RESTART flag to get restarting signals (which were the default long ago)
   * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
   * SA_RESETHAND clears the handler when the signal is delivered.
   * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
   * SA_NODEFER prevents the current signal from being masked in the handler.
   *
   * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
   * Unix names RESETHAND and NODEFER respectively.
   */

  #define SA_NOCLDSTOP	0x00000001U
  #define SA_NOCLDWAIT	0x00000002U
  #define SA_SIGINFO	0x00000004U
  #define SA_ONSTACK	0x08000000U
  #define SA_RESTART	0x10000000U
  #define SA_NODEFER	0x40000000U
  #define SA_RESETHAND	0x80000000U

  
  #define SA_NOMASK	SA_NODEFER
  #define SA_ONESHOT	SA_RESETHAND

  #define SA_RESTORER	0x04000000U

  
  /*
   * sigaltstack controls
   */
  #define SS_ONSTACK	1
  #define SS_DISABLE	2
  
  #define MINSIGSTKSZ	2048
  #define SIGSTKSZ	8192

  #include <asm-generic/signal.h>

  
  struct old_sigaction {
  	__sighandler_t sa_handler;
  	old_sigset_t sa_mask;
  	unsigned long sa_flags;
  	__sigrestore_t sa_restorer;
  };
  
  struct sigaction {
  	__sighandler_t sa_handler;
  	unsigned long sa_flags;
  	__sigrestore_t sa_restorer;
  	sigset_t sa_mask;		/* mask last for extensibility */
  };
  
  struct k_sigaction {
  	struct sigaction sa;
  };
  
  typedef struct sigaltstack {
  	void __user *ss_sp;
  	int ss_flags;
  	size_t ss_size;
  } stack_t;
  
  #ifdef __KERNEL__

  struct pt_regs;
  extern int do_signal(sigset_t *oldset, struct pt_regs *regs);
  extern int do_signal32(sigset_t *oldset, struct pt_regs *regs);

  #define ptrace_signal_deliver(regs, cookie) do { } while (0)
  #endif /* __KERNEL__ */

  #ifndef __powerpc64__

  /*
   * These are parameters to dbg_sigreturn syscall.  They enable or
   * disable certain debugging things that can be done from signal
   * handlers.  The dbg_sigreturn syscall *must* be called from a
   * SA_SIGINFO signal so the ucontext can be passed to it.  It takes an
   * array of struct sig_dbg_op, which has the debug operations to
   * perform before returning from the signal.
   */
  struct sig_dbg_op {
  	int dbg_type;
  	unsigned long dbg_value;
  };
  
  /* Enable or disable single-stepping.  The value sets the state. */
  #define SIG_DBG_SINGLE_STEPPING		1
  
  /* Enable or disable branch tracing.  The value sets the state. */
  #define SIG_DBG_BRANCH_TRACING		2

  #endif /* ! __powerpc64__ */

  #endif /* _ASM_POWERPC_SIGNAL_H */