ptrace_trap_notify9
Schedule trap to notify ptracer
Usage
void ptrace_trap_notify(struct task_struct * t);
Arguments
t
tracee wanting to notify tracer
Overview
This function schedules sticky ptrace trap which is cleared on the next TRAP_STOP to notify ptracer of an event. t must have been seized by ptracer.
If t is running, STOP trap will be taken. If trapped for STOP and ptracer is listening for events, tracee is woken up so that it can re-trap for the new event. If trapped otherwise, STOP trap will be eventually taken without returning to userland after the existing traps are finished by PTRACE_CONT.
Context
Must be called with task->sighand->siglock held.
Releases
2 releases since Debian 7 (Wheezy); the text changed 1 time.