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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @brief POSIX Signals Manager Initialization
* @ingroup POSIX_SIGNALS
*/
/*
* COPYRIGHT (c) 1989-2008.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <signal.h>
#include <string.h>
#include <stdlib.h>
#include <rtems/score/isrlevel.h>
#include <rtems/score/threadimpl.h>
#include <rtems/score/threadqimpl.h>
#include <rtems/score/watchdogimpl.h>
#include <rtems/posix/threadsup.h>
#include <rtems/posix/psignalimpl.h>
#include <rtems/posix/pthreadimpl.h>
#include <rtems/config.h>
#include <rtems/seterr.h>
#include <rtems/sysinit.h>
/*
* Ensure we have the same number of vectors and default vector entries
*/
RTEMS_STATIC_ASSERT(
sizeof( _POSIX_signals_Vectors ) == sizeof( _POSIX_signals_Default_vectors ),
posix_signals_vectors
);
/*** PROCESS WIDE STUFF ****/
sigset_t _POSIX_signals_Pending;
void _POSIX_signals_Abnormal_termination_handler(
int signo RTEMS_UNUSED )
{
exit( 1 );
}
#define SIG_ARRAY_MAX (SIGRTMAX + 1)
const 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,
/* SIGURG 16 */ SIGACTION_TERMINATE,
/* SIGSTOP 17 */ SIGACTION_TERMINATE,
/* SIGTSTP 18 */ SIGACTION_TERMINATE,
/* SIGCONT 19 */ SIGACTION_TERMINATE,
/* SIGCHLD 20 */ SIGACTION_TERMINATE,
/* SIGTTIN 21 */ SIGACTION_TERMINATE,
/* SIGTTOU 22 */ SIGACTION_TERMINATE,
/* SIGIO 23 */ SIGACTION_TERMINATE,
/* SIGWINCH 24 */ SIGACTION_TERMINATE,
/* SIGUSR1 25 */ SIGACTION_TERMINATE,
/* SIGUSR2 26 */ SIGACTION_TERMINATE,
/* SIGRT 27 */ SIGACTION_TERMINATE,
/* SIGRT 28 */ SIGACTION_TERMINATE,
/* SIGRT 29 */ SIGACTION_TERMINATE,
/* SIGRT 30 */ SIGACTION_TERMINATE,
/* SIGRTMAX 31 */ SIGACTION_TERMINATE
};
struct sigaction _POSIX_signals_Vectors[ SIG_ARRAY_MAX ];
Thread_queue_Control _POSIX_signals_Wait_queue =
THREAD_QUEUE_INITIALIZER( "POSIX Signals" );
Chain_Control _POSIX_signals_Inactive_siginfo;
Chain_Control _POSIX_signals_Siginfo[ SIG_ARRAY_MAX ];
static void _POSIX_signals_Manager_Initialization(void)
{
uint32_t signo;
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 );
/* 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,
&_POSIX_signals_Siginfo_nodes[ 0 ],
_POSIX_signals_Maximum_queued_signals,
sizeof( _POSIX_signals_Siginfo_nodes[ 0 ] )
);
}
RTEMS_SYSINIT_ITEM(
_POSIX_signals_Manager_Initialization,
RTEMS_SYSINIT_POSIX_SIGNALS,
RTEMS_SYSINIT_ORDER_MIDDLE
);
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