fxlibc/src/libc/signal/signal_p.h

#ifndef __SIGNAL_P_H__
# define __SIGNAL_P_H__

#ifdef __SUPPORT_VHEX_KERNEL

#include <bits/signum.h>

/* Handlers for all signals. */
extern __sighandler_t __signal_handlers[_NSIG];

#endif /*! __SUPPORT_VHEX_KERNEL*/

#endif /*__SIGNAL_P_H__*/
signal: simple implementation (DONE) This version of signal (which does not rely on a notion of userland processes and is thus excluded from Vhex) follows C99 semantics but does not generate any signals by default. Basically, the signal function sets up function pointers and the signal function calls them. Termination signals call exit() while other signals call _Exit(), which is a quicker program termination similar to abort(). C99 allows programs to long jump out of signal handlers (!) which is unbelievably scary because it would bypass stack switching code in Vhex as well as normal interrupt handler termination in gint. 2021-05-29 18:26:33 +02:00			`#ifndef __SIGNAL_P_H__`
			`# define __SIGNAL_P_H__`

			`#ifdef __SUPPORT_VHEX_KERNEL`

			`#include <bits/signum.h>`

			`/* Handlers for all signals. */`
			`extern __sighandler_t __signal_handlers[_NSIG];`

			`#endif /! __SUPPORT_VHEX_KERNEL/`

			`#endif /__SIGNAL_P_H__/`