diff options
Diffstat (limited to 'newlib/libc/sys/rtems/sys/siginfo.h')
| -rw-r--r-- | newlib/libc/sys/rtems/sys/siginfo.h | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/newlib/libc/sys/rtems/sys/siginfo.h b/newlib/libc/sys/rtems/sys/siginfo.h new file mode 100644 index 00000000000..c1bcf61aec6 --- /dev/null +++ b/newlib/libc/sys/rtems/sys/siginfo.h @@ -0,0 +1,176 @@ +/* + * $Id$ + */ + +#ifndef __POSIX_SYS_SIGNAL_INFORMATION_h +#define __POSIX_SYS_SIGNAL_INFORMATION_h + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(_POSIX_THREADS) +#include <sys/types.h> +#endif + +/* + * 3.3 Signal Concepts, P1003.1b-1993, p. 60 + */ + +typedef __uint32_t sigset_t; + +#define SIG_DFL ((void (*)())0) /* Request for default signal handling */ +#define SIG_IGN ((void (*)())1) /* Request that signal be ignored */ + +#define SIG_ERR ((void (*)())-1) /* Returned by signal() on error */ + +/* + * Required Signals. + * + * The default action is in parentheses and is one of the + * following actions: + * + * (1) abnormal termination of process + * (2) ignore the signal + * (3) stop the process + * (4) continue the process if it is currently stopped, otherwise + * ignore the signal + */ + +#define SIGHUP 1 /* (1) hangup detected on controlling terminal */ +#define SIGINT 2 /* (1) interactive attention signal */ +#define SIGQUIT 3 /* (1) interactive termination signal */ +#define SIGILL 4 /* (1) illegal instruction */ +#define SIGTRAP 5 /* (1) trace trap (not reset) */ +#define SIGIOT 6 /* (1) IOT instruction */ +#define SIGABRT 6 /* (1) abnormal terminal signal */ +#define SIGEMT 7 /* (1) EMT instruction */ +#define SIGFPE 8 /* (1) erroneous arithmetic operation */ +#define SIGKILL 9 /* (1) termination signal */ +#define SIGBUS 10 /* (1) bus error */ +#define SIGSEGV 11 /* (1) invalid memory reference */ +#define SIGSYS 12 /* (1) bad argument to system call */ +#define SIGPIPE 13 /* (1) write on pipe with no readers */ +#define SIGALRM 14 /* (1) timeout signal, such as initiated by alarm() */ +#define SIGTERM 15 /* (1) termination signal */ +#define SIGUSR1 16 /* (1) reserved as application defined signal 1 */ +#define SIGUSR2 17 /* (1) reserved as application defined signal 2 */ + +#define __SIGFIRSTNOTRT SIGHUP +#define __SIGLASTNOTRT SIGUSR2 + +/* + * RTEMS does not support job control, hence no Job Control Signals are + * defined per P1003.1b-1993, p. 60-61. + */ + +/* + * RTEMS does not support memory protection, hence no Memory Protection + * Signals are defined per P1003.1b-1993, p. 60-61. + */ + +/* + * Real-Time Signals Range, P1003.1b-1993, p. 61 + * + * NOTE: This should be at least RTSIG_MAX (which is a minimum of 8) signals. + */ + +#define SIGRTMIN 18 +#define SIGRTMAX 32 + +/* sigev_notify values + * + * NOTE: P1003.1c/D10, p. 34 adds SIGEV_THREAD. + */ + +#define SIGEV_NONE 1 /* No asynchronous notification shall be delivered */ + /* when the event of interest occurs. */ +#define SIGEV_SIGNAL 2 /* A queued signal, with an application defined */ + /* value, shall be delivered when the event of */ + /* interest occurs. */ +#define SIGEV_THREAD 3 /* A notification function shall be called to */ + /* perform notification. */ +/* + * 3.3.1.2 Signal Generation and Delivery, P1003.1b-1993, p. 63 + * + * NOTE: P1003.1c/D10, p. 34 adds sigev_notify_function and + * sigev_notify_attributes to the sigevent structure. + */ + +union sigval { + int sival_int; /* Integer signal value */ + void *sival_ptr; /* Pointer signal value */ +}; + +struct sigevent { + int sigev_notify; /* Notification type */ + int sigev_signo; /* Signal number */ + union sigval sigev_value; /* Signal value */ + +#if defined(_POSIX_THREADS) + void (*sigev_notify_function)( union sigval ); + /* Notification function */ + pthread_attr_t *sigev_notify_attributes; /* Notification Attributes */ +#endif +}; + +/* + * 3.3.1.3 Signal Actions, P1003.1b-1993, p. 64 + */ + +/* si_code values, p. 66 */ + +#define SI_USER 1 /* Sent by a user. kill(), abort(), etc */ +#define SI_QUEUE 2 /* Sent by sigqueue() */ +#define SI_TIMER 3 /* Sent by expiration of a timer_settime() timer */ +#define SI_ASYNCIO 4 /* Indicates completion of asycnhronous IO */ +#define SI_MESGQ 5 /* Indicates arrival of a message at an empty queue */ + +typedef struct { + int si_signo; /* Signal number */ + int si_code; /* Cause of the signal */ + union sigval si_value; /* Signal value */ +} siginfo_t; + +/* + * 3.3.4 Examine and Change Signal Action, P1003.1b-1993, p. 70 + */ + +/* sa_flags values */ + +#define SA_NOCLDSTOP 1 /* Do not generate SIGCHLD when children stop */ +#define SA_SIGINFO 2 /* Invoke the signal catching function with */ + /* three arguments instead of one. */ + +/* + * Data Structure Notes: + * + * (1) Routines stored in sa_handler should take a single int as + * there argument although the POSIX standard does not require this. + * (2) The fields sa_handler and sa_sigaction may overlap, and a conforming + * application should not use both simultaneously. + * + * NOTE: In this implementation, macros are provided to access into the + * union. + */ + +struct sigaction { + int sa_flags; /* Special flags to affect behavior of signal */ + sigset_t sa_mask; /* Additional set of signals to be blocked */ + /* during execution of signal-catching */ + /* function. */ + union { + void (*_handler)(); /* SIG_DFL, SIG_IGN, or pointer to a function */ + void (*_sigaction)( int, siginfo_t *, void * ); + } _signal_handlers; +}; + +#define sa_handler _signal_handlers._handler +#define sa_sigaction _signal_handlers._sigaction + +#ifdef __cplusplus +} +#endif + +#endif +/* end of include file */ |