1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _M68K_SIGNAL_H
 3#define _M68K_SIGNAL_H
 4
 5#include <uapi/asm/signal.h>
 6
 7/* Most things should be clean enough to redefine this at will, if care
 8   is taken to make libc match.  */
 9
10#define _NSIG		64
11#define _NSIG_BPW	32
12#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
13
14typedef unsigned long old_sigset_t;		/* at least 32 bits */
15
16typedef struct {
17	unsigned long sig[_NSIG_WORDS];
18} sigset_t;
19
20#define __ARCH_HAS_SA_RESTORER
21
22#include <asm/sigcontext.h>
23
24#ifndef CONFIG_CPU_HAS_NO_BITFIELDS
25#define __HAVE_ARCH_SIG_BITOPS
26
27static inline void sigaddset(sigset_t *set, int _sig)
28{
29	asm ("bfset %0{%1,#1}"
30		: "+o" (*set)
31		: "id" ((_sig - 1) ^ 31)
32		: "cc");
33}
34
35static inline void sigdelset(sigset_t *set, int _sig)
36{
37	asm ("bfclr %0{%1,#1}"
38		: "+o" (*set)
39		: "id" ((_sig - 1) ^ 31)
40		: "cc");
41}
42
43static inline int __const_sigismember(sigset_t *set, int _sig)
44{
45	unsigned long sig = _sig - 1;
46	return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
47}
48
49static inline int __gen_sigismember(sigset_t *set, int _sig)
50{
51	int ret;
52	asm ("bfextu %1{%2,#1},%0"
53		: "=d" (ret)
54		: "o" (*set), "id" ((_sig-1) ^ 31)
55		: "cc");
56	return ret;
57}
58
59#define sigismember(set,sig)			\
60	(__builtin_constant_p(sig) ?		\
61	 __const_sigismember(set,sig) :		\
62	 __gen_sigismember(set,sig))
63
64#endif /* !CONFIG_CPU_HAS_NO_BITFIELDS */
65
66#endif /* _M68K_SIGNAL_H */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _M68K_SIGNAL_H
 3#define _M68K_SIGNAL_H
 4
 5#include <uapi/asm/signal.h>
 6
 7/* Most things should be clean enough to redefine this at will, if care
 8   is taken to make libc match.  */
 9
10#define _NSIG		64
11#define _NSIG_BPW	32
12#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
13
14typedef unsigned long old_sigset_t;		/* at least 32 bits */
15
16typedef struct {
17	unsigned long sig[_NSIG_WORDS];
18} sigset_t;
19
20#define __ARCH_HAS_SA_RESTORER
21
22#include <asm/sigcontext.h>
23
24#ifndef CONFIG_CPU_HAS_NO_BITFIELDS
25#define __HAVE_ARCH_SIG_BITOPS
26
27static inline void sigaddset(sigset_t *set, int _sig)
28{
29	asm ("bfset %0{%1,#1}"
30		: "+o" (*set)
31		: "id" ((_sig - 1) ^ 31)
32		: "cc");
33}
34
35static inline void sigdelset(sigset_t *set, int _sig)
36{
37	asm ("bfclr %0{%1,#1}"
38		: "+o" (*set)
39		: "id" ((_sig - 1) ^ 31)
40		: "cc");
41}
42
43static inline int __const_sigismember(sigset_t *set, int _sig)
44{
45	unsigned long sig = _sig - 1;
46	return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
47}
48
49static inline int __gen_sigismember(sigset_t *set, int _sig)
50{
51	int ret;
52	asm ("bfextu %1{%2,#1},%0"
53		: "=d" (ret)
54		: "o" (*set), "id" ((_sig-1) ^ 31)
55		: "cc");
56	return ret;
57}
58
59#define sigismember(set,sig)			\
60	(__builtin_constant_p(sig) ?		\
61	 __const_sigismember(set,sig) :		\
62	 __gen_sigismember(set,sig))
63
64#endif /* !CONFIG_CPU_HAS_NO_BITFIELDS */
65
66#endif /* _M68K_SIGNAL_H */