1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3  *  S390 version
4  *
5  *  Derived from "include/asm-i386/signal.h"
6  */
7 
8 #ifndef _UAPI_ASMS390_SIGNAL_H
9 #define _UAPI_ASMS390_SIGNAL_H
10 
11 #include <linux/types.h>
12 #include <linux/time.h>
13 
14 /* Avoid too many header ordering problems.  */
15 struct siginfo;
16 struct pt_regs;
17 
18 #ifndef __KERNEL__
19 /* Here we must cater to libcs that poke about in kernel headers.  */
20 
21 #define NSIG            32
22 typedef unsigned long sigset_t;
23 
24 #endif /* __KERNEL__ */
25 
26 #define SIGHUP           1
27 #define SIGINT           2
28 #define SIGQUIT          3
29 #define SIGILL           4
30 #define SIGTRAP          5
31 #define SIGABRT          6
32 #define SIGIOT           6
33 #define SIGBUS           7
34 #define SIGFPE           8
35 #define SIGKILL          9
36 #define SIGUSR1         10
37 #define SIGSEGV         11
38 #define SIGUSR2         12
39 #define SIGPIPE         13
40 #define SIGALRM         14
41 #define SIGTERM         15
42 #define SIGSTKFLT       16
43 #define SIGCHLD         17
44 #define SIGCONT         18
45 #define SIGSTOP         19
46 #define SIGTSTP         20
47 #define SIGTTIN         21
48 #define SIGTTOU         22
49 #define SIGURG          23
50 #define SIGXCPU         24
51 #define SIGXFSZ         25
52 #define SIGVTALRM       26
53 #define SIGPROF         27
54 #define SIGWINCH        28
55 #define SIGIO           29
56 #define SIGPOLL         SIGIO
57 /*
58 #define SIGLOST         29
59 */
60 #define SIGPWR          30
61 #define SIGSYS		31
62 #define SIGUNUSED       31
63 
64 /* These should not be considered constants from userland.  */
65 #define SIGRTMIN        32
66 #define SIGRTMAX        _NSIG
67 
68 #define SA_RESTORER     0x04000000
69 
70 #define MINSIGSTKSZ     2048
71 #define SIGSTKSZ        8192
72 
73 #include <asm-generic/signal-defs.h>
74 
75 #ifndef __KERNEL__
76 
77 /*
78  * There are two system calls in regard to sigaction, sys_rt_sigaction
79  * and sys_sigaction. Internally the kernel uses the struct old_sigaction
80  * for the older sys_sigaction system call, and the kernel version of the
81  * struct sigaction for the newer sys_rt_sigaction.
82  *
83  * The uapi definition for struct sigaction has made a strange distinction
84  * between 31-bit and 64-bit in the past. For 64-bit the uapi structure
85  * looks like the kernel struct sigaction, but for 31-bit it used to
86  * look like the kernel struct old_sigaction. That practically made the
87  * structure unusable for either system call. To get around this problem
88  * the glibc always had its own definitions for the sigaction structures.
89  *
90  * The current struct sigaction uapi definition below is suitable for the
91  * sys_rt_sigaction system call only.
92  */
93 struct sigaction {
94         union {
95           __sighandler_t _sa_handler;
96           void (*_sa_sigaction)(int, struct siginfo *, void *);
97         } _u;
98         unsigned long sa_flags;
99         void (*sa_restorer)(void);
100 	sigset_t sa_mask;
101 };
102 
103 #define sa_handler      _u._sa_handler
104 #define sa_sigaction    _u._sa_sigaction
105 
106 #endif /* __KERNEL__ */
107 
108 typedef struct sigaltstack {
109         void __user *ss_sp;
110         int ss_flags;
111 	__kernel_size_t ss_size;
112 } stack_t;
113 
114 
115 #endif /* _UAPI_ASMS390_SIGNAL_H */
116