'\" t
.\"     Title: ptrace_trap_notify
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: Driver Basics
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "PTRACE_TRAP_NOTIFY" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "Driver Basics"
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.SH "NAME"
ptrace_trap_notify \- schedule trap to notify ptracer
.SH "SYNOPSIS"
.HP \w'void\ ptrace_trap_notify('u
.BI "void ptrace_trap_notify(struct\ task_struct\ *\ " "t" ");"
.SH "ARGUMENTS"
.PP
\fIt\fR
.RS 4
tracee wanting to notify tracer
.RE
.SH "DESCRIPTION"
.PP
This function schedules sticky ptrace trap which is cleared on the next TRAP_STOP to notify ptracer of an event\&.
\fIt\fR
must have been seized by ptracer\&.
.PP
If
\fIt\fR
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\&.
.SH "CONTEXT"
.PP
Must be called with
\fItask\fR\->sighand\->siglock held\&.
.SH "COPYRIGHT"
.br