1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _UAPI__ASM_GENERIC_SIGNAL_H
3 #define _UAPI__ASM_GENERIC_SIGNAL_H
4 
5 #include <linux/types.h>
6 
7 #define _NSIG		64
8 #define _NSIG_BPW	__BITS_PER_LONG
9 #define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
10 
11 #define SIGHUP		 1
12 #define SIGINT		 2
13 #define SIGQUIT		 3
14 #define SIGILL		 4
15 #define SIGTRAP		 5
16 #define SIGABRT		 6
17 #define SIGIOT		 6
18 #define SIGBUS		 7
19 #define SIGFPE		 8
20 #define SIGKILL		 9
21 #define SIGUSR1		10
22 #define SIGSEGV		11
23 #define SIGUSR2		12
24 #define SIGPIPE		13
25 #define SIGALRM		14
26 #define SIGTERM		15
27 #define SIGSTKFLT	16
28 #define SIGCHLD		17
29 #define SIGCONT		18
30 #define SIGSTOP		19
31 #define SIGTSTP		20
32 #define SIGTTIN		21
33 #define SIGTTOU		22
34 #define SIGURG		23
35 #define SIGXCPU		24
36 #define SIGXFSZ		25
37 #define SIGVTALRM	26
38 #define SIGPROF		27
39 #define SIGWINCH	28
40 #define SIGIO		29
41 #define SIGPOLL		SIGIO
42 /*
43 #define SIGLOST		29
44 */
45 #define SIGPWR		30
46 #define SIGSYS		31
47 #define	SIGUNUSED	31
48 
49 /* These should not be considered constants from userland.  */
50 #define SIGRTMIN	32
51 #ifndef SIGRTMAX
52 #define SIGRTMAX	_NSIG
53 #endif
54 
55 /*
56  * SA_FLAGS values:
57  *
58  * SA_ONSTACK indicates that a registered stack_t will be used.
59  * SA_RESTART flag to get restarting signals (which were the default long ago)
60  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
61  * SA_RESETHAND clears the handler when the signal is delivered.
62  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
63  * SA_NODEFER prevents the current signal from being masked in the handler.
64  *
65  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
66  * Unix names RESETHAND and NODEFER respectively.
67  */
68 #define SA_NOCLDSTOP	0x00000001
69 #define SA_NOCLDWAIT	0x00000002
70 #define SA_SIGINFO	0x00000004
71 #define SA_ONSTACK	0x08000000
72 #define SA_RESTART	0x10000000
73 #define SA_NODEFER	0x40000000
74 #define SA_RESETHAND	0x80000000
75 
76 #define SA_NOMASK	SA_NODEFER
77 #define SA_ONESHOT	SA_RESETHAND
78 
79 /*
80  * New architectures should not define the obsolete
81  *	SA_RESTORER	0x04000000
82  */
83 
84 #if !defined MINSIGSTKSZ || !defined SIGSTKSZ
85 #define MINSIGSTKSZ	2048
86 #define SIGSTKSZ	8192
87 #endif
88 
89 #ifndef __ASSEMBLY__
90 typedef struct {
91 	unsigned long sig[_NSIG_WORDS];
92 } sigset_t;
93 
94 /* not actually used, but required for linux/syscalls.h */
95 typedef unsigned long old_sigset_t;
96 
97 #include <asm-generic/signal-defs.h>
98 
99 #ifdef SA_RESTORER
100 #define __ARCH_HAS_SA_RESTORER
101 #endif
102 
103 #ifndef __KERNEL__
104 struct sigaction {
105 	__sighandler_t sa_handler;
106 	unsigned long sa_flags;
107 #ifdef SA_RESTORER
108 	__sigrestore_t sa_restorer;
109 #endif
110 	sigset_t sa_mask;		/* mask last for extensibility */
111 };
112 #endif
113 
114 typedef struct sigaltstack {
115 	void __user *ss_sp;
116 	int ss_flags;
117 	size_t ss_size;
118 } stack_t;
119 
120 #endif /* __ASSEMBLY__ */
121 
122 #endif /* _UAPI__ASM_GENERIC_SIGNAL_H */
123