diff options
Diffstat (limited to 'c/src/exec/posix/src/psignal.c')
| -rw-r--r-- | c/src/exec/posix/src/psignal.c | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/c/src/exec/posix/src/psignal.c b/c/src/exec/posix/src/psignal.c deleted file mode 100644 index f93b6cc7c1..0000000000 --- a/c/src/exec/posix/src/psignal.c +++ /dev/null @@ -1,250 +0,0 @@ -/* - * $Id$ - */ - -#if HAVE_CONFIG_H -#include "config.h" -#endif - -#include <assert.h> -#include <errno.h> -#include <pthread.h> -#include <signal.h> -#include <string.h> /* memcpy */ -#include <stdlib.h> /* exit */ - -#include <rtems/system.h> -#include <rtems/score/isr.h> -#include <rtems/score/thread.h> -#include <rtems/score/tqdata.h> -#include <rtems/score/wkspace.h> -#include <rtems/seterr.h> -#include <rtems/posix/threadsup.h> -#include <rtems/posix/psignal.h> -#include <rtems/posix/pthread.h> -#include <rtems/posix/time.h> -#include <stdio.h> - - -/* - * Currently 32 signals numbered 1-32 are defined - */ - -#define SIGNAL_EMPTY_MASK 0x00000000 -#define SIGNAL_ALL_MASK 0xffffffff - -#define signo_to_mask( _sig ) (1 << ((_sig) - 1)) - -#define is_valid_signo( _sig ) \ - ((_sig) >= 1 && (_sig) <= 32 ) - -/*** PROCESS WIDE STUFF ****/ - -sigset_t _POSIX_signals_Pending; - -void _POSIX_signals_Abnormal_termination_handler( int signo ) -{ - exit( 1 ); -} - -#define SIG_ARRAY_MAX (SIGRTMAX + 1) -struct sigaction _POSIX_signals_Default_vectors[ SIG_ARRAY_MAX ] = { - /* NO SIGNAL 0 */ SIGACTION_IGNORE, - /* SIGHUP 1 */ SIGACTION_TERMINATE, - /* SIGINT 2 */ SIGACTION_TERMINATE, - /* SIGQUIT 3 */ SIGACTION_TERMINATE, - /* SIGILL 4 */ SIGACTION_TERMINATE, - /* SIGTRAP 5 */ SIGACTION_TERMINATE, - /* SIGIOT 6 */ SIGACTION_TERMINATE, - /* SIGABRT 6 SIGACTION_TERMINATE, -- alias for SIGIOT */ - /* SIGEMT 7 */ SIGACTION_TERMINATE, - /* SIGFPE 8 */ SIGACTION_TERMINATE, - /* SIGKILL 9 */ SIGACTION_TERMINATE, - /* SIGBUS 10 */ SIGACTION_TERMINATE, - /* SIGSEGV 11 */ SIGACTION_TERMINATE, - /* SIGSYS 12 */ SIGACTION_TERMINATE, - /* SIGPIPE 13 */ SIGACTION_TERMINATE, - /* SIGALRM 14 */ SIGACTION_TERMINATE, - /* SIGTERM 15 */ SIGACTION_TERMINATE, - /* SIGUSR1 16 */ SIGACTION_TERMINATE, - /* SIGUSR2 17 */ SIGACTION_TERMINATE, - /* SIGRTMIN 18 */ SIGACTION_TERMINATE, - /* SIGRT 19 */ SIGACTION_TERMINATE, - /* SIGRT 20 */ SIGACTION_TERMINATE, - /* SIGRT 21 */ SIGACTION_TERMINATE, - /* SIGRT 22 */ SIGACTION_TERMINATE, - /* SIGRT 23 */ SIGACTION_TERMINATE, - /* SIGRT 24 */ SIGACTION_TERMINATE, - /* SIGRT 25 */ SIGACTION_TERMINATE, - /* SIGRT 26 */ SIGACTION_TERMINATE, - /* SIGRT 27 */ SIGACTION_TERMINATE, - /* SIGRT 28 */ SIGACTION_TERMINATE, - /* SIGRT 29 */ SIGACTION_TERMINATE, - /* SIGRT 30 */ SIGACTION_TERMINATE, - /* SIGRT 31 */ SIGACTION_TERMINATE, - /* SIGRTMAX 32 */ SIGACTION_TERMINATE -}; - -struct sigaction _POSIX_signals_Vectors[ SIG_ARRAY_MAX ]; - -Watchdog_Control _POSIX_signals_Alarm_timer; - -Thread_queue_Control _POSIX_signals_Wait_queue; - -Chain_Control _POSIX_signals_Inactive_siginfo; -Chain_Control _POSIX_signals_Siginfo[ SIG_ARRAY_MAX ]; - -/*PAGE - * - * XXX - move these - */ - -#define _States_Is_interruptible_signal( _states ) \ - ( ((_states) & \ - (STATES_WAITING_FOR_SIGNAL|STATES_INTERRUPTIBLE_BY_SIGNAL)) == \ - (STATES_WAITING_FOR_SIGNAL|STATES_INTERRUPTIBLE_BY_SIGNAL)) - -/* - * _POSIX_signals_Post_switch_extension - */ - -void _POSIX_signals_Post_switch_extension( - Thread_Control *the_thread -) -{ - POSIX_API_Control *api; - int signo; - ISR_Level level; - - api = the_thread->API_Extensions[ THREAD_API_POSIX ]; - - /* - * If we invoke any user code, there is the possibility that - * a new signal has been posted that we should process so we - * restart the loop if a signal handler was invoked. - * - * The first thing done is to check there are any signals to be - * processed at all. No point in doing this loop otherwise. - */ - -restart: - _ISR_Disable( level ); - if ( !(~api->signals_blocked & - (api->signals_pending | _POSIX_signals_Pending)) ) { - _ISR_Enable( level ); - return; - } - _ISR_Enable( level ); - - for ( signo = SIGRTMIN ; signo <= SIGRTMAX ; signo++ ) { - - if ( _POSIX_signals_Check_signal( api, signo, FALSE ) ) - goto restart; - - if ( _POSIX_signals_Check_signal( api, signo, TRUE ) ) - goto restart; - - } - -/* XXX - add __SIGFIRSTNOTRT or something like that to newlib signal .h */ - - for ( signo = SIGHUP ; signo <= __SIGLASTNOTRT ; signo++ ) { - - if ( _POSIX_signals_Check_signal( api, signo, FALSE ) ) - goto restart; - - if ( _POSIX_signals_Check_signal( api, signo, TRUE ) ) - goto restart; - - } - -} - -/*PAGE - * - * _POSIX_signals_Alarm_TSR - */ - -void _POSIX_signals_Alarm_TSR( - Objects_Id id, - void *argument -) -{ - int status; - - status = kill( getpid(), SIGALRM ); - /* XXX can't print from an ISR, should this be fatal? */ - assert( !status ); -} - -/*PAGE - * - * _POSIX_signals_Manager_Initialization - */ - -void _POSIX_signals_Manager_Initialization( - int maximum_queued_signals -) -{ - unsigned32 signo; - - /* - * Insure we have the same number of vectors and default vector entries - */ - - assert( - sizeof(_POSIX_signals_Vectors) == sizeof(_POSIX_signals_Default_vectors) - ); - - memcpy( - _POSIX_signals_Vectors, - _POSIX_signals_Default_vectors, - sizeof( _POSIX_signals_Vectors ) - ); - - /* - * Initialize the set of pending signals for the entire process - */ - - sigemptyset( &_POSIX_signals_Pending ); - - /* - * Initialize the timer used to implement alarm(). - */ - - _Watchdog_Initialize( - &_POSIX_signals_Alarm_timer, - _POSIX_signals_Alarm_TSR, - 0, - NULL - ); - - /* - * Initialize the queue we use to block for signals - */ - - _Thread_queue_Initialize( - &_POSIX_signals_Wait_queue, - THREAD_QUEUE_DISCIPLINE_PRIORITY, - STATES_WAITING_FOR_SIGNAL | STATES_INTERRUPTIBLE_BY_SIGNAL, - EAGAIN - ); - - /* XXX status codes */ - - /* - * Allocate the siginfo pools. - */ - - for ( signo=1 ; signo<= SIGRTMAX ; signo++ ) - _Chain_Initialize_empty( &_POSIX_signals_Siginfo[ signo ] ); - - _Chain_Initialize( - &_POSIX_signals_Inactive_siginfo, - _Workspace_Allocate_or_fatal_error( - maximum_queued_signals * sizeof( POSIX_signals_Siginfo_node ) - ), - maximum_queued_signals, - sizeof( POSIX_signals_Siginfo_node ) - ); -} |