tracehook_get_signal — deliver synthetic signal to traced task
int tracehook_get_signal ( | struct task_struct * task, |
| struct pt_regs * regs, | |
| siginfo_t * info, | |
struct k_sigaction * return_ka); |
task
current
regs
task_pt_regs(current)
infodetails of synthetic signal
return_kasigaction for synthetic signal
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.