signal.c File Reference

#include <signal.h>
#include <Drivers/uart.h>
#include <Hal/AA64/sched.h>
#include <Mm/vmmngr.h>
#include <Mm/pmmngr.h>
#include <string.h>

Include dependency graph for signal.c:

Functions
void	aa64_signal_return ()
int	AuAllocSignal (AA64Thread *thr, int signum)
	AuAllocSignal – allocate a signal for destination thread.
int	AuSignalDispatch (AA64Thread *thr)
	AuSignalDispatch – dispatch a signal.
bool	AuSignalDeliver (AA64Thread *current_thread)
	AuSignalDeliver – deliver the current thread's signal.
void	AuSignalInitializeTrampoline (AA64Thread *t)
	AuSignalInitializeTrampoline – installs return trampoline code to threads sig return address.

Function Documentation

aa64_signal_return()

void aa64_signal_return ( )

extern

BSD 2-Clause License

Copyright (c) 2022-2026, Manas Kamal Choudhury All rights reserved.

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 HOLDER 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.

AuAllocSignal()

int AuAllocSignal	(	AA64Thread *	thr,
		int	signum
	)

AuAllocSignal – allocate a signal for destination thread.

AuAllocSignal – allocate a signal onto the signal queue of thread.

Parameters

thr	– destination thread
signum	– signal number

let's go with standard posix signal

AuSignalDeliver()

bool AuSignalDeliver

(

AA64Thread *

current_thread

)

AuSignalDeliver – deliver the current thread's signal.

Parameters

current_thread

– pointer to thread

AuSignalDispatch()

int AuSignalDispatch

(

AA64Thread *

thr

)

AuSignalDispatch – dispatch a signal.

Parameters

thr	– pointer to thread

AuSignalInitializeTrampoline()

void AuSignalInitializeTrampoline

(

AA64Thread *

t

)

AuSignalInitializeTrampoline – installs return trampoline code to threads sig return address.

Parameters

t	– pointer to thread struct