signal.h

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#ifndef _UAPI_ASM_POWERPC_SIGNAL_H
#define _UAPI_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-defs.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;


#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 /* _UAPI_ASM_POWERPC_SIGNAL_H */