signal.c File Reference

#include <stdlib.h>
#include <stdarg.h>
#include <errno.h>
#include <signal.h>
#include <strings.h>
#include <as-layout.h>
#include <kern_util.h>
#include <os.h>
#include <sysdep/mcontext.h>
#include "internal.h"

Go to the source code of this file.

Macros
#define	SIGIO_BIT   0
#define	SIGIO_MASK   (1 << SIGIO_BIT)
#define	SIGVTALRM_BIT   1
#define	SIGVTALRM_MASK   (1 << SIGVTALRM_BIT)

Functions
void	sig_handler (int sig, siginfo_t *si, mcontext_t *mc)
void	alarm_handler (int sig, struct siginfo *unused_si, mcontext_t *mc)
void	timer_init (void)
void	set_sigstack (void *sig_stack, int size)
void	set_handler (int sig)
int	change_sig (int signal, int on)
void	block_signals (void)
void	unblock_signals (void)
int	get_signals (void)
int	set_signals (int enable)

Variables
void(*	sig_info [NSIG])(int, siginfo_t *, struct uml_pt_regs *)

Macro Definition Documentation

#define SIGIO_BIT   0

Definition at line 55 of file signal.c.

#define SIGIO_MASK   (1 << SIGIO_BIT)

Definition at line 56 of file signal.c.

#define SIGVTALRM_BIT   1

Definition at line 58 of file signal.c.

#define SIGVTALRM_MASK   (1 << SIGVTALRM_BIT)

Definition at line 59 of file signal.c.

Function Documentation

void alarm_handler	(	int	sig,
		struct siginfo *	unused_si,
		mcontext_t *	mc
	)

Definition at line 92 of file signal.c.

void block_signals

(

void

)

Definition at line 222 of file signal.c.

int change_sig	(	int	signal,
		int	on
	)

Definition at line 210 of file signal.c.

int get_signals

(

void

)

Definition at line 289 of file signal.c.

void set_handler

(

int

sig

)

Definition at line 179 of file signal.c.

int set_signals

(

int

enable

)

Definition at line 294 of file signal.c.

void set_sigstack	(	void *	sig_stack,
		int	size
	)

Definition at line 113 of file signal.c.

void sig_handler	(	int	sig,
		siginfo_t *	si,
		mcontext_t *	mc
	)

Definition at line 64 of file signal.c.

void timer_init

(

void

)

Definition at line 108 of file signal.c.

void unblock_signals

(

void

)

Definition at line 234 of file signal.c.

Variable Documentation

void(* sig_info[NSIG])(int, siginfo_t *, struct uml_pt_regs *)

Initial value:

= {
    [SIGTRAP]   = relay_signal,
    [SIGFPE]    = relay_signal,
    [SIGILL]    = relay_signal,
    [SIGWINCH]  = winch,
    [SIGBUS]    = bus_handler,
    [SIGSEGV]   = segv_handler,
    [SIGIO]     = sigio_handler,
    [SIGVTALRM] = timer_handler }

Definition at line 18 of file signal.c.