summaryrefslogtreecommitdiffstats
path: root/include/asm-powerpc/signal.h
blob: a7360cdd99eb783b6249c58428ffb744d46007d3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
#ifndef _ASM_POWERPC_SIGNAL_H
#define _ASM_POWERPC_SIGNAL_H

#include <linux/types.h>

#define _NSIG		64
#ifdef __powerpc64__
#define _NSIG_BPW	64
#else
#define _NSIG_BPW	32
#endif
#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)

typedef unsigned long old_sigset_t;		/* at least 32 bits */

typedef struct {
	unsigned long sig[_NSIG_WORDS];
} sigset_t;

#define SIGHUP		 1
#define SIGINT		 2
#define SIGQUIT		 3
#define SIGILL		 4
#define SIGTRAP		 5
#define SIGABRT		 6
#define SIGIOT		 6
#define SIGBUS		 7
#define SIGFPE		 8
#define SIGKILL		 9
#define SIGUSR1		10
#define SIGSEGV		11
#define SIGUSR2		12
#define SIGPIPE		13
#define SIGALRM		14
#define SIGTERM		15
#define SIGSTKFLT	16
#define SIGCHLD		17
#define SIGCONT		18
#define SIGSTOP		19
#define SIGTSTP		20
#define SIGTTIN		21
#define SIGTTOU		22
#define SIGURG		23
#define SIGXCPU		24
#define SIGXFSZ		25
#define SIGVTALRM	26
#define SIGPROF		27
#define SIGWINCH	28
#define SIGIO		29
#define SIGPOLL		SIGIO
/*
#define SIGLOST		29
*/
#define SIGPWR		30
#define SIGSYS		31
#define	SIGUNUSED	31

/* These should not be considered constants from userland.  */
#define SIGRTMIN	32
#define SIGRTMAX	_NSIG

/*
 * SA_FLAGS values:
 *
 * SA_ONSTACK is not currently supported, but will allow sigaltstack(2).
 * SA_RESTART flag to get restarting signals (which were the default long ago)
 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
 * SA_RESETHAND clears the handler when the signal is delivered.
 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
 * SA_NODEFER prevents the current signal from being masked in the handler.
 *
 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
 * Unix names RESETHAND and NODEFER respectively.
 */
#define SA_NOCLDSTOP	0x00000001U
#define SA_NOCLDWAIT	0x00000002U
#define SA_SIGINFO	0x00000004U
#define SA_ONSTACK	0x08000000U
#define SA_RESTART	0x10000000U
#define SA_NODEFER	0x40000000U
#define SA_RESETHAND	0x80000000U

#define SA_NOMASK	SA_NODEFER
#define SA_ONESHOT	SA_RESETHAND

#define SA_RESTORER	0x04000000U

/*
 * sigaltstack controls
 */
#define SS_ONSTACK	1
#define SS_DISABLE	2

#define MINSIGSTKSZ	2048
#define SIGSTKSZ	8192

#include <asm-generic/signal.h>

struct old_sigaction {
	__sighandler_t sa_handler;
	old_sigset_t sa_mask;
	unsigned long sa_flags;
	__sigrestore_t sa_restorer;
};

struct sigaction {
	__sighandler_t sa_handler;
	unsigned long sa_flags;
	__sigrestore_t sa_restorer;
	sigset_t sa_mask;		/* mask last for extensibility */
};

struct k_sigaction {
	struct sigaction sa;
};

typedef struct sigaltstack {
	void __user *ss_sp;
	int ss_flags;
	size_t ss_size;
} stack_t;

#ifdef __KERNEL__
struct pt_regs;
extern void do_signal(struct pt_regs *regs, unsigned long thread_info_flags);
#define ptrace_signal_deliver(regs, cookie) do { } while (0)
#endif /* __KERNEL__ */

#ifndef __powerpc64__
/*
 * These are parameters to dbg_sigreturn syscall.  They enable or
 * disable certain debugging things that can be done from signal
 * handlers.  The dbg_sigreturn syscall *must* be called from a
 * SA_SIGINFO signal so the ucontext can be passed to it.  It takes an
 * array of struct sig_dbg_op, which has the debug operations to
 * perform before returning from the signal.
 */
struct sig_dbg_op {
	int dbg_type;
	unsigned long dbg_value;
};

/* Enable or disable single-stepping.  The value sets the state. */
#define SIG_DBG_SINGLE_STEPPING		1

/* Enable or disable branch tracing.  The value sets the state. */
#define SIG_DBG_BRANCH_TRACING		2
#endif /* ! __powerpc64__ */

#endif /* _ASM_POWERPC_SIGNAL_H */
OpenPOWER on IntegriCloud