| PTRACE_TRAP_NOTIFY(9) | Driver Basics | PTRACE_TRAP_NOTIFY(9) |
NAME¶
ptrace_trap_notify - schedule trap to notify ptracer
SYNOPSIS¶
void ptrace_trap_notify(struct task_struct * t);
ARGUMENTS¶
t
tracee wanting to notify tracer
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.
CONTEXT¶
Must be called with task->sighand->siglock held.
COPYRIGHT¶
| June 2024 | Kernel Hackers Manual 3.10 |