tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _M68K_SIGNAL_H
2#define _M68K_SIGNAL_H
3
4#include <uapi/asm/signal.h>
5
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
13typedef unsigned long old_sigset_t; /* at least 32 bits */
14
15typedef struct {
16 unsigned long sig[_NSIG_WORDS];
17} sigset_t;
18
19#define __ARCH_HAS_SA_RESTORER
20
21#include <asm/sigcontext.h>
22
23#ifndef CONFIG_CPU_HAS_NO_BITFIELDS
24#define __HAVE_ARCH_SIG_BITOPS
25
26static inline void sigaddset(sigset_t *set, int _sig)
27{
28 asm ("bfset %0{%1,#1}"
29 : "+o" (*set)
30 : "id" ((_sig - 1) ^ 31)
31 : "cc");
32}
33
34static inline void sigdelset(sigset_t *set, int _sig)
35{
36 asm ("bfclr %0{%1,#1}"
37 : "+o" (*set)
38 : "id" ((_sig - 1) ^ 31)
39 : "cc");
40}
41
42static inline int __const_sigismember(sigset_t *set, int _sig)
43{
44 unsigned long sig = _sig - 1;
45 return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
46}
47
48static inline int __gen_sigismember(sigset_t *set, int _sig)
49{
50 int ret;
51 asm ("bfextu %1{%2,#1},%0"
52 : "=d" (ret)
53 : "o" (*set), "id" ((_sig-1) ^ 31)
54 : "cc");
55 return ret;
56}
57
58#define sigismember(set,sig) \
59 (__builtin_constant_p(sig) ? \
60 __const_sigismember(set,sig) : \
61 __gen_sigismember(set,sig))
62
63static inline int sigfindinword(unsigned long word)
64{
65 asm ("bfffo %1{#0,#0},%0"
66 : "=d" (word)
67 : "d" (word & -word)
68 : "cc");
69 return word ^ 31;
70}
71
72#endif /* !CONFIG_CPU_HAS_NO_BITFIELDS */
73
74#ifndef __uClinux__
75extern void ptrace_signal_deliver(void);
76#define ptrace_signal_deliver ptrace_signal_deliver
77#endif /* __uClinux__ */
78
79#endif /* _M68K_SIGNAL_H */