DO_JOBCTL_TRAP(9)                         Driver Basics                         DO_JOBCTL_TRAP(9)



NAME
       do_jobctl_trap - take care of ptrace jobctl traps

SYNOPSIS
       void do_jobctl_trap(void);

ARGUMENTS
       void
           no arguments

DESCRIPTION
       When PT_SEIZED, it's used for both group stop and explicit SEIZE/INTERRUPT traps. Both
       generate PTRACE_EVENT_STOP trap with accompanying siginfo. If stopped, lower eight bits of
       exit_code contain the stop signal; otherwise, SIGTRAP.

       When !PT_SEIZED, it's used only for group stop trap with stop signal number as exit_code
       and no siginfo.

CONTEXT
       Must be called with current->sighand->siglock held, which may be released and re-acquired
       before returning with intervening sleep.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                         DO_JOBCTL_TRAP(9)