1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _UAPI_ASM_POWERPC_SIGNAL_H
3 #define _UAPI_ASM_POWERPC_SIGNAL_H
4
5 #include <linux/types.h>
6
7 #define _NSIG 64
8 #ifdef __powerpc64__
9 #define _NSIG_BPW 64
10 #else
11 #define _NSIG_BPW 32
12 #endif
13 #define _NSIG_WORDS (_NSIG / _NSIG_BPW)
14
15 typedef unsigned long old_sigset_t; /* at least 32 bits */
16
17 typedef struct {
18 unsigned long sig[_NSIG_WORDS];
19 } sigset_t;
20
21 #define SIGHUP 1
22 #define SIGINT 2
23 #define SIGQUIT 3
24 #define SIGILL 4
25 #define SIGTRAP 5
26 #define SIGABRT 6
27 #define SIGIOT 6
28 #define SIGBUS 7
29 #define SIGFPE 8
30 #define SIGKILL 9
31 #define SIGUSR1 10
32 #define SIGSEGV 11
33 #define SIGUSR2 12
34 #define SIGPIPE 13
35 #define SIGALRM 14
36 #define SIGTERM 15
37 #define SIGSTKFLT 16
38 #define SIGCHLD 17
39 #define SIGCONT 18
40 #define SIGSTOP 19
41 #define SIGTSTP 20
42 #define SIGTTIN 21
43 #define SIGTTOU 22
44 #define SIGURG 23
45 #define SIGXCPU 24
46 #define SIGXFSZ 25
47 #define SIGVTALRM 26
48 #define SIGPROF 27
49 #define SIGWINCH 28
50 #define SIGIO 29
51 #define SIGPOLL SIGIO
52 /*
53 #define SIGLOST 29
54 */
55 #define SIGPWR 30
56 #define SIGSYS 31
57 #define SIGUNUSED 31
58
59 /* These should not be considered constants from userland. */
60 #define SIGRTMIN 32
61 #define SIGRTMAX _NSIG
62
63 /*
64 * SA_FLAGS values:
65 *
66 * SA_ONSTACK is not currently supported, but will allow sigaltstack(2).
67 * SA_RESTART flag to get restarting signals (which were the default long ago)
68 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
69 * SA_RESETHAND clears the handler when the signal is delivered.
70 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
71 * SA_NODEFER prevents the current signal from being masked in the handler.
72 *
73 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
74 * Unix names RESETHAND and NODEFER respectively.
75 */
76 #define SA_NOCLDSTOP 0x00000001U
77 #define SA_NOCLDWAIT 0x00000002U
78 #define SA_SIGINFO 0x00000004U
79 #define SA_ONSTACK 0x08000000U
80 #define SA_RESTART 0x10000000U
81 #define SA_NODEFER 0x40000000U
82 #define SA_RESETHAND 0x80000000U
83
84 #define SA_NOMASK SA_NODEFER
85 #define SA_ONESHOT SA_RESETHAND
86
87 #define SA_RESTORER 0x04000000U
88
89 #define MINSIGSTKSZ 2048
90 #define SIGSTKSZ 8192
91
92 #include <asm-generic/signal-defs.h>
93
94 #ifndef __KERNEL__
95 struct old_sigaction {
96 __sighandler_t sa_handler;
97 old_sigset_t sa_mask;
98 unsigned long sa_flags;
99 __sigrestore_t sa_restorer;
100 };
101
102 struct sigaction {
103 __sighandler_t sa_handler;
104 unsigned long sa_flags;
105 __sigrestore_t sa_restorer;
106 sigset_t sa_mask; /* mask last for extensibility */
107 };
108 #endif
109
110 typedef struct sigaltstack {
111 void __user *ss_sp;
112 int ss_flags;
113 size_t ss_size;
114 } stack_t;
115
116
117 #ifndef __powerpc64__
118 /*
119 * These are parameters to dbg_sigreturn syscall. They enable or
120 * disable certain debugging things that can be done from signal
121 * handlers. The dbg_sigreturn syscall *must* be called from a
122 * SA_SIGINFO signal so the ucontext can be passed to it. It takes an
123 * array of struct sig_dbg_op, which has the debug operations to
124 * perform before returning from the signal.
125 */
126 struct sig_dbg_op {
127 int dbg_type;
128 unsigned long dbg_value;
129 };
130
131 /* Enable or disable single-stepping. The value sets the state. */
132 #define SIG_DBG_SINGLE_STEPPING 1
133
134 /* Enable or disable branch tracing. The value sets the state. */
135 #define SIG_DBG_BRANCH_TRACING 2
136 #endif /* ! __powerpc64__ */
137
138 #endif /* _UAPI_ASM_POWERPC_SIGNAL_H */
139
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