signal.h

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#ifndef _M68K_SIGNAL_H
#define _M68K_SIGNAL_H

#include <uapi/asm/signal.h>

/* Most things should be clean enough to redefine this at will, if care
   is taken to make libc match.  */

#define _NSIG       64
#define _NSIG_BPW   32
#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;

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;
};
#include <asm/sigcontext.h>

#ifndef CONFIG_CPU_HAS_NO_BITFIELDS
#define __HAVE_ARCH_SIG_BITOPS

static inline void sigaddset(sigset_t *set, int _sig)
{
    asm ("bfset %0{%1,#1}"
        : "+o" (*set)
        : "id" ((_sig - 1) ^ 31)
        : "cc");
}

static inline void sigdelset(sigset_t *set, int _sig)
{
    asm ("bfclr %0{%1,#1}"
        : "+o" (*set)
        : "id" ((_sig - 1) ^ 31)
        : "cc");
}

static inline int __const_sigismember(sigset_t *set, int _sig)
{
    unsigned long sig = _sig - 1;
    return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
}

static inline int __gen_sigismember(sigset_t *set, int _sig)
{
    int ret;
    asm ("bfextu %1{%2,#1},%0"
        : "=d" (ret)
        : "o" (*set), "id" ((_sig-1) ^ 31)
        : "cc");
    return ret;
}

#define sigismember(set,sig)            \
    (__builtin_constant_p(sig) ?        \
     __const_sigismember(set,sig) :     \
     __gen_sigismember(set,sig))

static inline int sigfindinword(unsigned long word)
{
    asm ("bfffo %1{#0,#0},%0"
        : "=d" (word)
        : "d" (word & -word)
        : "cc");
    return word ^ 31;
}

#endif /* !CONFIG_CPU_HAS_NO_BITFIELDS */

#ifdef __uClinux__
#define ptrace_signal_deliver(regs, cookie) do { } while (0)
#else
struct pt_regs;
extern void ptrace_signal_deliver(struct pt_regs *regs, void *cookie);
#endif /* __uClinux__ */

#endif /* _M68K_SIGNAL_H */