[deliverable/linux.git] / arch / m68k / include / asm / signal.h

#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 */
Commit	Line	Data
8dba99e0 GU	1	#ifndef _M68K_SIGNAL_H
	2	#define _M68K_SIGNAL_H
	3
10b3a979	4	#include <uapi/asm/signal.h>
8dba99e0	5
8dba99e0 GU	6	/* Most things should be clean enough to redefine this at will, if care
	7	is taken to make libc match. */
	8
	9	#define _NSIG 64
	10	#define _NSIG_BPW 32
	11	#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
	12
	13	typedef unsigned long old_sigset_t; /* at least 32 bits */
	14
	15	typedef struct {
	16	unsigned long sig[_NSIG_WORDS];
	17	} sigset_t;
	18
8dba99e0 GU	19	struct old_sigaction {
	20	__sighandler_t sa_handler;
	21	old_sigset_t sa_mask;
	22	unsigned long sa_flags;
	23	__sigrestore_t sa_restorer;
	24	};
	25
	26	struct sigaction {
	27	__sighandler_t sa_handler;
	28	unsigned long sa_flags;
	29	__sigrestore_t sa_restorer;
	30	sigset_t sa_mask; /* mask last for extensibility */
	31	};
	32
	33	struct k_sigaction {
	34	struct sigaction sa;
	35	};
8dba99e0 GU	36	#include <asm/sigcontext.h>
8dba99e0 GU	37
f3c23a28	38	#ifndef CONFIG_CPU_HAS_NO_BITFIELDS
8dba99e0 GU	39	#define __HAVE_ARCH_SIG_BITOPS
	40
	41	static inline void sigaddset(sigset_t *set, int _sig)
	42	{
	43	asm ("bfset %0{%1,#1}"
34fa78b5	44	: "+o" (*set)
8dba99e0 GU	45	: "id" ((_sig - 1) ^ 31)
	46	: "cc");
	47	}
	48
	49	static inline void sigdelset(sigset_t *set, int _sig)
	50	{
	51	asm ("bfclr %0{%1,#1}"
34fa78b5	52	: "+o" (*set)
8dba99e0 GU	53	: "id" ((_sig - 1) ^ 31)
	54	: "cc");
	55	}
	56
	57	static inline int __const_sigismember(sigset_t *set, int _sig)
	58	{
	59	unsigned long sig = _sig - 1;
	60	return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
	61	}
	62
	63	static inline int __gen_sigismember(sigset_t *set, int _sig)
	64	{
	65	int ret;
	66	asm ("bfextu %1{%2,#1},%0"
	67	: "=d" (ret)
34fa78b5	68	: "o" (*set), "id" ((_sig-1) ^ 31)
8dba99e0 GU	69	: "cc");
	70	return ret;
	71	}
	72
	73	#define sigismember(set,sig) \
	74	(__builtin_constant_p(sig) ? \
	75	__const_sigismember(set,sig) : \
	76	__gen_sigismember(set,sig))
	77
	78	static inline int sigfindinword(unsigned long word)
	79	{
	80	asm ("bfffo %1{#0,#0},%0"
	81	: "=d" (word)
	82	: "d" (word & -word)
	83	: "cc");
	84	return word ^ 31;
	85	}
	86
f3c23a28	87	#endif /* !CONFIG_CPU_HAS_NO_BITFIELDS */
8dba99e0	88
f3c23a28	89	#ifdef __uClinux__
8dba99e0	90	#define ptrace_signal_deliver(regs, cookie) do { } while (0)
f3c23a28 GU	91	#else
	92	struct pt_regs;
	93	extern void ptrace_signal_deliver(struct pt_regs regs, void cookie);
8dba99e0	94	#endif /* __uClinux__ */
8dba99e0 GU	95
8dba99e0 GU	96	#endif /* _M68K_SIGNAL_H */