tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1#ifndef _ASMPPC_SIGNAL_H
2#define _ASMPPC_SIGNAL_H
3
4#ifdef __KERNEL__
5#include <linux/types.h>
6#endif /* __KERNEL__ */
7
8/* Avoid too many header ordering problems. */
9struct siginfo;
10
11/* Most things should be clean enough to redefine this at will, if care
12 is taken to make libc match. */
13
14#define _NSIG 64
15#define _NSIG_BPW 32
16#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
17
18typedef unsigned long old_sigset_t; /* at least 32 bits */
19
20typedef struct {
21 unsigned long sig[_NSIG_WORDS];
22} sigset_t;
23
24#define SIGHUP 1
25#define SIGINT 2
26#define SIGQUIT 3
27#define SIGILL 4
28#define SIGTRAP 5
29#define SIGABRT 6
30#define SIGIOT 6
31#define SIGBUS 7
32#define SIGFPE 8
33#define SIGKILL 9
34#define SIGUSR1 10
35#define SIGSEGV 11
36#define SIGUSR2 12
37#define SIGPIPE 13
38#define SIGALRM 14
39#define SIGTERM 15
40#define SIGSTKFLT 16
41#define SIGCHLD 17
42#define SIGCONT 18
43#define SIGSTOP 19
44#define SIGTSTP 20
45#define SIGTTIN 21
46#define SIGTTOU 22
47#define SIGURG 23
48#define SIGXCPU 24
49#define SIGXFSZ 25
50#define SIGVTALRM 26
51#define SIGPROF 27
52#define SIGWINCH 28
53#define SIGIO 29
54#define SIGPOLL SIGIO
55/*
56#define SIGLOST 29
57*/
58#define SIGPWR 30
59#define SIGSYS 31
60#define SIGUNUSED 31
61
62/* These should not be considered constants from userland. */
63#define SIGRTMIN 32
64#define SIGRTMAX _NSIG
65
66/*
67 * SA_FLAGS values:
68 *
69 * SA_ONSTACK is not currently supported, but will allow sigaltstack(2).
70 * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
71 * SA_RESTART flag to get restarting signals (which were the default long ago)
72 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
73 * SA_RESETHAND clears the handler when the signal is delivered.
74 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
75 * SA_NODEFER prevents the current signal from being masked in the handler.
76 *
77 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
78 * Unix names RESETHAND and NODEFER respectively.
79 */
80#define SA_NOCLDSTOP 0x00000001
81#define SA_NOCLDWAIT 0x00000002
82#define SA_SIGINFO 0x00000004
83#define SA_ONSTACK 0x08000000
84#define SA_RESTART 0x10000000
85#define SA_NODEFER 0x40000000
86#define SA_RESETHAND 0x80000000
87
88#define SA_NOMASK SA_NODEFER
89#define SA_ONESHOT SA_RESETHAND
90#define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
91
92#define SA_RESTORER 0x04000000
93
94/*
95 * sigaltstack controls
96 */
97#define SS_ONSTACK 1
98#define SS_DISABLE 2
99
100#define MINSIGSTKSZ 2048
101#define SIGSTKSZ 8192
102
103#include <asm-generic/signal.h>
104
105struct old_sigaction {
106 __sighandler_t sa_handler;
107 old_sigset_t sa_mask;
108 unsigned long sa_flags;
109 __sigrestore_t sa_restorer;
110};
111
112struct sigaction {
113 __sighandler_t sa_handler;
114 unsigned long sa_flags;
115 __sigrestore_t sa_restorer;
116 sigset_t sa_mask; /* mask last for extensibility */
117};
118
119struct k_sigaction {
120 struct sigaction sa;
121};
122
123typedef struct sigaltstack {
124 void __user *ss_sp;
125 int ss_flags;
126 size_t ss_size;
127} stack_t;
128
129#ifdef __KERNEL__
130#include <asm/sigcontext.h>
131#define ptrace_signal_deliver(regs, cookie) do { } while (0)
132#endif /* __KERNEL__ */
133
134/*
135 * These are parameters to dbg_sigreturn syscall. They enable or
136 * disable certain debugging things that can be done from signal
137 * handlers. The dbg_sigreturn syscall *must* be called from a
138 * SA_SIGINFO signal so the ucontext can be passed to it. It takes an
139 * array of struct sig_dbg_op, which has the debug operations to
140 * perform before returning from the signal.
141 */
142struct sig_dbg_op {
143 int dbg_type;
144 unsigned long dbg_value;
145};
146
147/* Enable or disable single-stepping. The value sets the state. */
148#define SIG_DBG_SINGLE_STEPPING 1
149
150/* Enable or disable branch tracing. The value sets the state. */
151#define SIG_DBG_BRANCH_TRACING 2
152
153#endif