ptrace_trap_notify - schedule trap to notify ptracer
2. SYNOPSIS ▲
void ptrace_trap_notify(struct task_struct * t );
3. ARGUMENTS ▲
tracee wanting to notify tracer
4. DESCRIPTION ▲
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.
5. CONTEXT ▲
Must be called with task->sighand->siglock held.
6. COPYRIGHT ▲