1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _UAPI_ASM_X86_SIGNAL_H
3 #define _UAPI_ASM_X86_SIGNAL_H
4
5 #ifndef __ASSEMBLY__
6 #include <linux/types.h>
7 #include <linux/time.h>
8 #include <linux/compiler.h>
9
10 /* Avoid too many header ordering problems. */
11 struct siginfo;
12
13 #ifndef __KERNEL__
14 /* Here we must cater to libcs that poke about in kernel headers. */
15
16 #define NSIG 32
17 typedef unsigned long sigset_t;
18
19 #endif /* __KERNEL__ */
20 #endif /* __ASSEMBLY__ */
21
22
23 #define SIGHUP 1
24 #define SIGINT 2
25 #define SIGQUIT 3
26 #define SIGILL 4
27 #define SIGTRAP 5
28 #define SIGABRT 6
29 #define SIGIOT 6
30 #define SIGBUS 7
31 #define SIGFPE 8
32 #define SIGKILL 9
33 #define SIGUSR1 10
34 #define SIGSEGV 11
35 #define SIGUSR2 12
36 #define SIGPIPE 13
37 #define SIGALRM 14
38 #define SIGTERM 15
39 #define SIGSTKFLT 16
40 #define SIGCHLD 17
41 #define SIGCONT 18
42 #define SIGSTOP 19
43 #define SIGTSTP 20
44 #define SIGTTIN 21
45 #define SIGTTOU 22
46 #define SIGURG 23
47 #define SIGXCPU 24
48 #define SIGXFSZ 25
49 #define SIGVTALRM 26
50 #define SIGPROF 27
51 #define SIGWINCH 28
52 #define SIGIO 29
53 #define SIGPOLL SIGIO
54 /*
55 #define SIGLOST 29
56 */
57 #define SIGPWR 30
58 #define SIGSYS 31
59 #define SIGUNUSED 31
60
61 /* These should not be considered constants from userland. */
62 #define SIGRTMIN 32
63 #define SIGRTMAX _NSIG
64
65 /*
66 * SA_FLAGS values:
67 *
68 * SA_ONSTACK indicates that a registered stack_t will be used.
69 * SA_RESTART flag to get restarting signals (which were the default long ago)
70 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
71 * SA_RESETHAND clears the handler when the signal is delivered.
72 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
73 * SA_NODEFER prevents the current signal from being masked in the handler.
74 *
75 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
76 * Unix names RESETHAND and NODEFER respectively.
77 */
78 #define SA_NOCLDSTOP 0x00000001u
79 #define SA_NOCLDWAIT 0x00000002u
80 #define SA_SIGINFO 0x00000004u
81 #define SA_ONSTACK 0x08000000u
82 #define SA_RESTART 0x10000000u
83 #define SA_NODEFER 0x40000000u
84 #define SA_RESETHAND 0x80000000u
85
86 #define SA_NOMASK SA_NODEFER
87 #define SA_ONESHOT SA_RESETHAND
88
89 #define SA_RESTORER 0x04000000
90
91 #define MINSIGSTKSZ 2048
92 #define SIGSTKSZ 8192
93
94 #include <asm-generic/signal-defs.h>
95
96 #ifndef __ASSEMBLY__
97
98
99 # ifndef __KERNEL__
100 /* Here we must cater to libcs that poke about in kernel headers. */
101 #ifdef __i386__
102
103 struct sigaction {
104 union {
105 __sighandler_t _sa_handler;
106 void (*_sa_sigaction)(int, struct siginfo *, void *);
107 } _u;
108 sigset_t sa_mask;
109 unsigned long sa_flags;
110 void (*sa_restorer)(void);
111 };
112
113 #define sa_handler _u._sa_handler
114 #define sa_sigaction _u._sa_sigaction
115
116 #else /* __i386__ */
117
118 struct sigaction {
119 __sighandler_t sa_handler;
120 unsigned long sa_flags;
121 __sigrestore_t sa_restorer;
122 sigset_t sa_mask; /* mask last for extensibility */
123 };
124
125 #endif /* !__i386__ */
126 # endif /* ! __KERNEL__ */
127
128 typedef struct sigaltstack {
129 void __user *ss_sp;
130 int ss_flags;
131 size_t ss_size;
132 } stack_t;
133
134 #endif /* __ASSEMBLY__ */
135
136 #endif /* _UAPI_ASM_X86_SIGNAL_H */
137
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