2
* Copyright (C) 2008 The Android Open Source Project
5
* Redistribution and use in source and binary forms, with or without
6
* modification, are permitted provided that the following conditions
8
* * Redistributions of source code must retain the above copyright
9
* notice, this list of conditions and the following disclaimer.
10
* * Redistributions in binary form must reproduce the above copyright
11
* notice, this list of conditions and the following disclaimer in
12
* the documentation and/or other materials provided with the
15
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31
#include <sys/cdefs.h>
32
#include <limits.h> /* For LONG_BIT */
33
#include <string.h> /* For memset() */
34
#include <sys/types.h>
35
#include <asm/signal.h>
37
#define __ARCH_SI_UID_T __kernel_uid32_t
38
#include <asm/siginfo.h>
39
#undef __ARCH_SI_UID_T
43
typedef int sig_atomic_t;
45
/* _NSIG is used by the SIGRTMAX definition under <asm/signal.h>, however
46
* its definition is part of a #if __KERNEL__ .. #endif block in the original
47
* kernel headers and is thus not part of our cleaned-up versions.
49
* Looking at the current kernel sources, it is defined as 64 for all
50
* architectures except for the 'mips' one which set it to 128.
56
extern const char * const sys_siglist[];
57
extern const char * const sys_signame[];
59
static __inline__ int sigismember(sigset_t *set, int signum)
61
unsigned long *local_set = (unsigned long *)set;
63
return (int)((local_set[signum/LONG_BIT] >> (signum%LONG_BIT)) & 1);
67
static __inline__ int sigaddset(sigset_t *set, int signum)
69
unsigned long *local_set = (unsigned long *)set;
71
local_set[signum/LONG_BIT] |= 1UL << (signum%LONG_BIT);
76
static __inline__ int sigdelset(sigset_t *set, int signum)
78
unsigned long *local_set = (unsigned long *)set;
80
local_set[signum/LONG_BIT] &= ~(1UL << (signum%LONG_BIT));
85
static __inline__ int sigemptyset(sigset_t *set)
87
memset(set, 0, sizeof *set);
91
static __inline__ int sigfillset(sigset_t *set)
93
memset(set, ~0, sizeof *set);
98
/* compatibility types */
99
typedef void (*sig_t)(int);
100
typedef sig_t sighandler_t;
102
/* differentiater between sysv and bsd behaviour 8*/
103
extern __sighandler_t sysv_signal(int, __sighandler_t);
104
extern __sighandler_t bsd_signal(int, __sighandler_t);
106
/* the default is bsd */
107
static __inline__ __sighandler_t signal(int s, __sighandler_t f)
109
return bsd_signal(s,f);
112
/* the syscall itself */
113
extern __sighandler_t __signal(int, __sighandler_t, int);
115
extern int sigprocmask(int, const sigset_t *, sigset_t *);
116
extern int sigaction(int, const struct sigaction *, struct sigaction *);
118
extern int sigpending(sigset_t *);
119
extern int sigsuspend(const sigset_t *);
120
extern int sigwait(const sigset_t *set, int *sig);
121
extern int siginterrupt(int sig, int flag);
123
extern int raise(int);
124
extern int kill(pid_t, int);
125
extern int killpg(int pgrp, int sig);
126
extern int sigaltstack(const stack_t *ss, stack_t *oss);
131
#endif /* _SIGNAL_H_ */