PTRACE_EVENT_EXIT   44 include/linux/ptrace.h #define PT_TRACE_EXIT		PT_EVENT_FLAG(PTRACE_EVENT_EXIT)
PTRACE_EVENT_EXIT  132 include/uapi/linux/ptrace.h #define PTRACE_O_TRACEEXIT	(1 << PTRACE_EVENT_EXIT)
PTRACE_EVENT_EXIT  735 kernel/exit.c  	ptrace_event(PTRACE_EVENT_EXIT, code);