10 #include <sys/features.h>
11 #include <sys/types.h>
13 /* #ifndef __STRICT_ANSI__*/
15 typedef unsigned long sigset_t;
17 #if defined(__rtems__)
19 #if defined(_POSIX_REALTIME_SIGNALS)
21 /* sigev_notify values
22 NOTE: P1003.1c/D10, p. 34 adds SIGEV_THREAD. */
24 #define SIGEV_NONE 1 /* No asynchronous notification shall be delivered */
25 /* when the event of interest occurs. */
26 #define SIGEV_SIGNAL 2 /* A queued signal, with an application defined */
27 /* value, shall be delivered when the event of */
28 /* interest occurs. */
29 #define SIGEV_THREAD 3 /* A notification function shall be called to */
30 /* perform notification. */
32 /* Signal Generation and Delivery, P1003.1b-1993, p. 63
33 NOTE: P1003.1c/D10, p. 34 adds sigev_notify_function and
34 sigev_notify_attributes to the sigevent structure. */
37 int sival_int; /* Integer signal value */
38 void *sival_ptr; /* Pointer signal value */
42 int sigev_notify; /* Notification type */
43 int sigev_signo; /* Signal number */
44 union sigval sigev_value; /* Signal value */
46 #if defined(_POSIX_THREADS)
47 void (*sigev_notify_function)( union sigval );
48 /* Notification function */
49 pthread_attr_t *sigev_notify_attributes; /* Notification Attributes */
53 /* Signal Actions, P1003.1b-1993, p. 64 */
54 /* si_code values, p. 66 */
56 #define SI_USER 1 /* Sent by a user. kill(), abort(), etc */
57 #define SI_QUEUE 2 /* Sent by sigqueue() */
58 #define SI_TIMER 3 /* Sent by expiration of a timer_settime() timer */
59 #define SI_ASYNCIO 4 /* Indicates completion of asycnhronous IO */
60 #define SI_MESGQ 5 /* Indicates arrival of a message at an empty queue */
63 int si_signo; /* Signal number */
64 int si_code; /* Cause of the signal */
65 union sigval si_value; /* Signal value */
69 /* 3.3.8 Synchronously Accept a Signal, P1003.1b-1993, p. 76 */
71 #define SA_NOCLDSTOP 1 /* Do not generate SIGCHLD when children stop */
72 #define SA_SIGINFO 2 /* Invoke the signal catching function with */
73 /* three arguments instead of one. */
75 /* struct sigaction notes from POSIX:
77 * (1) Routines stored in sa_handler should take a single int as
78 * their argument although the POSIX standard does not require this.
79 * This is not longer true since at least POSIX.1-2008
80 * (2) The fields sa_handler and sa_sigaction may overlap, and a conforming
81 * application should not use both simultaneously.
84 typedef void (*_sig_func_ptr)(int);
87 int sa_flags; /* Special flags to affect behavior of signal */
88 sigset_t sa_mask; /* Additional set of signals to be blocked */
89 /* during execution of signal-catching */
92 _sig_func_ptr _handler; /* SIG_DFL, SIG_IGN, or pointer to a function */
93 #if defined(_POSIX_REALTIME_SIGNALS)
94 void (*_sigaction)( int, siginfo_t *, void * );
99 #define sa_handler _signal_handlers._handler
100 #if defined(_POSIX_REALTIME_SIGNALS)
101 #define sa_sigaction _signal_handlers._sigaction
104 #elif defined(__CYGWIN__)
105 #include <cygwin/signal.h>
107 #define SA_NOCLDSTOP 1 /* only value supported now for sa_flags */
109 typedef void (*_sig_func_ptr)(int);
113 _sig_func_ptr sa_handler;
117 #endif /* defined(__rtems__) */
119 #define SIG_SETMASK 0 /* set mask with sigprocmask() */
120 #define SIG_BLOCK 1 /* set of signals to block */
121 #define SIG_UNBLOCK 2 /* set of signals to, well, unblock */
123 /* These depend upon the type of sigset_t, which right now
124 is always a long.. They're in the POSIX namespace, but
126 #define sigaddset(what,sig) (*(what) |= (1<<(sig)), 0)
127 #define sigdelset(what,sig) (*(what) &= ~(1<<(sig)), 0)
128 #define sigemptyset(what) (*(what) = 0, 0)
129 #define sigfillset(what) (*(what) = ~(0), 0)
130 #define sigismember(what,sig) (((*(what)) & (1<<(sig))) != 0)
132 int _EXFUN(sigprocmask, (int how, const sigset_t *set, sigset_t *oset));
134 #if defined(_POSIX_THREADS)
135 int _EXFUN(pthread_sigmask, (int how, const sigset_t *set, sigset_t *oset));
138 /* protos for functions found in winsup sources for CYGWIN */
139 #if defined(__CYGWIN__) || defined(__rtems__) || defined (__native_client__)
146 int _EXFUN(kill, (pid_t, int));
147 int _EXFUN(killpg, (pid_t, int));
148 int _EXFUN(sigaction, (int, const struct sigaction *, struct sigaction *));
149 int _EXFUN(sigaddset, (sigset_t *, const int));
150 int _EXFUN(sigdelset, (sigset_t *, const int));
151 int _EXFUN(sigismember, (const sigset_t *, int));
152 int _EXFUN(sigfillset, (sigset_t *));
153 int _EXFUN(sigemptyset, (sigset_t *));
154 int _EXFUN(sigpending, (sigset_t *));
155 int _EXFUN(sigsuspend, (const sigset_t *));
156 int _EXFUN(sigpause, (int));
158 #if defined(_POSIX_THREADS)
160 # ifndef _CYGWIN_TYPES_H
161 # error You need the winsup sources or a cygwin installation to compile the cygwin version of newlib.
164 int _EXFUN(pthread_kill, (pthread_t thread, int sig));
167 #if defined(_POSIX_REALTIME_SIGNALS)
169 /* 3.3.8 Synchronously Accept a Signal, P1003.1b-1993, p. 76
170 NOTE: P1003.1c/D10, p. 39 adds sigwait(). */
172 int _EXFUN(sigwaitinfo, (const sigset_t *set, siginfo_t *info));
173 int _EXFUN(sigtimedwait,
174 (const sigset_t *set, siginfo_t *info, const struct timespec *timeout)
176 int _EXFUN(sigwait, (const sigset_t *set, int *sig));
178 /* 3.3.9 Queue a Signal to a Process, P1003.1b-1993, p. 78 */
179 int _EXFUN(sigqueue, (pid_t pid, int signo, const union sigval value));
181 #endif /* defined(_POSIX_REALTIME_SIGNALS) */
183 #endif /* defined(__CYGWIN__) || defined(__rtems__) */
185 /* #endif __STRICT_ANSI__ */
187 #if defined(___AM29K__)
188 /* These all need to be defined for ANSI C, but I don't think they are
196 /* These need to be defined for POSIX, and some others do too. */
200 #elif defined(__GO32__)
221 #elif !defined(SIGTRAP)
222 #define SIGHUP 1 /* hangup */
223 #define SIGINT 2 /* interrupt */
224 #define SIGQUIT 3 /* quit */
225 #define SIGILL 4 /* illegal instruction (not reset when caught) */
226 #define SIGTRAP 5 /* trace trap (not reset when caught) */
227 #define SIGIOT 6 /* IOT instruction */
228 #define SIGABRT 6 /* used by abort, replace SIGIOT in the future */
229 #define SIGEMT 7 /* EMT instruction */
230 #define SIGFPE 8 /* floating point exception */
231 #define SIGKILL 9 /* kill (cannot be caught or ignored) */
232 #define SIGBUS 10 /* bus error */
233 #define SIGSEGV 11 /* segmentation violation */
234 #define SIGSYS 12 /* bad argument to system call */
235 #define SIGPIPE 13 /* write on a pipe with no one to read it */
236 #define SIGALRM 14 /* alarm clock */
237 #define SIGTERM 15 /* software termination signal from kill */
239 #if defined(__rtems__)
240 #define SIGURG 16 /* urgent condition on IO channel */
241 #define SIGSTOP 17 /* sendable stop signal not from tty */
242 #define SIGTSTP 18 /* stop signal from tty */
243 #define SIGCONT 19 /* continue a stopped process */
244 #define SIGCHLD 20 /* to parent on child stop or exit */
245 #define SIGCLD 20 /* System V name for SIGCHLD */
246 #define SIGTTIN 21 /* to readers pgrp upon background tty read */
247 #define SIGTTOU 22 /* like TTIN for output if (tp->t_local<OSTOP) */
248 #define SIGIO 23 /* input/output possible signal */
249 #define SIGPOLL SIGIO /* System V name for SIGIO */
250 #define SIGWINCH 24 /* window changed */
251 #define SIGUSR1 25 /* user defined signal 1 */
252 #define SIGUSR2 26 /* user defined signal 2 */
254 /* Real-Time Signals Range, P1003.1b-1993, p. 61
255 NOTE: By P1003.1b-1993, this should be at least RTSIG_MAX
256 (which is a minimum of 8) signals.
260 #define __SIGFIRSTNOTRT SIGHUP
261 #define __SIGLASTNOTRT SIGUSR2
263 #define NSIG 32 /* signal 0 implied */
265 #elif defined(__svr4__)
266 /* svr4 specifics. different signals above 15, and sigaction. */
272 #define SIGPOLL 22 /* 20 for x.out binaries!!!! */
273 #define SIGSTOP 23 /* sendable stop signal not from tty */
274 #define SIGTSTP 24 /* stop signal from tty */
275 #define SIGCONT 25 /* continue a stopped process */
276 #define SIGTTIN 26 /* to readers pgrp upon background tty read */
277 #define SIGTTOU 27 /* like TTIN for output if (tp->t_local<OSTOP) */
280 #define SIGURG 16 /* urgent condition on IO channel */
281 #define SIGSTOP 17 /* sendable stop signal not from tty */
282 #define SIGTSTP 18 /* stop signal from tty */
283 #define SIGCONT 19 /* continue a stopped process */
284 #define SIGCHLD 20 /* to parent on child stop or exit */
285 #define SIGCLD 20 /* System V name for SIGCHLD */
286 #define SIGTTIN 21 /* to readers pgrp upon background tty read */
287 #define SIGTTOU 22 /* like TTIN for output if (tp->t_local<OSTOP) */
288 #define SIGIO 23 /* input/output possible signal */
289 #define SIGPOLL SIGIO /* System V name for SIGIO */
290 #define SIGXCPU 24 /* exceeded CPU time limit */
291 #define SIGXFSZ 25 /* exceeded file size limit */
292 #define SIGVTALRM 26 /* virtual time alarm */
293 #define SIGPROF 27 /* profiling time alarm */
294 #define SIGWINCH 28 /* window changed */
295 #define SIGLOST 29 /* resource lost (eg, record-lock lost) */
296 #define SIGUSR1 30 /* user defined signal 1 */
297 #define SIGUSR2 31 /* user defined signal 2 */
298 #define NSIG 32 /* signal 0 implied */
307 /* Some applications take advantage of the fact that <sys/signal.h>
308 * and <signal.h> are equivalent in glibc. Allow for that here. */
311 #endif /* _SYS_SIGNAL_H */