1. NAME▲

ptrace_trap_notify - schedule trap to notify ptracer

2. SYNOPSIS ▲

void ptrace_trap_notify(struct task_struct *  t );

3. ARGUMENTS ▲

t
    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 ▲