suse man page for tracehook_get_signal

TRACEHOOK_GET_SIGNAL(9) 					 Kernel Internals					   TRACEHOOK_GET_SIGNAL(9)

NAME
       tracehook_get_signal - deliver synthetic signal to traced task

SYNOPSIS
       int tracehook_get_signal(struct task_struct * task, struct pt_regs * regs, siginfo_t * info, struct k_sigaction * return_ka);

ARGUMENTS
       task

	   current

       regs
	   task_pt_regs(current)

       info
	   details of synthetic signal

       return_ka
	   sigaction for synthetic signal

DESCRIPTION
       Return zero to check for a real pending signal normally. Return -1 after releasing the siglock to repeat the check. Return a signal number
       to induce an artifical signal delivery, setting *info and *return_ka to specify its details and behavior.

       The return_ka->sa_handler value controls the disposition of the signal, no matter the signal number. For SIG_DFL, the return value is a
       representative signal to indicate the behavior (e.g.  SIGTERM for death, SIGQUIT for core dump, SIGSTOP for job control stop, SIGTSTP for
       stop unless in an orphaned pgrp), but the signal number reported will be info->si_signo instead.

       Called with task->sighand->siglock held, before dequeuing pending signals.

Kernel Hackers Manual 2.6.					     July 2010						   TRACEHOOK_GET_SIGNAL(9)