RUBY_VM_END_CONTROL_FRAME 1455 eval.c             rb_control_frame_t *end_cfp = RUBY_VM_END_CONTROL_FRAME(th);
RUBY_VM_END_CONTROL_FRAME   45 vm.c           	const rb_control_frame_t * const eocfp = RUBY_VM_END_CONTROL_FRAME(th); /* end of control frame pointer */
RUBY_VM_END_CONTROL_FRAME  432 vm_backtrace.c     rb_control_frame_t *start_cfp = RUBY_VM_END_CONTROL_FRAME(th);
RUBY_VM_END_CONTROL_FRAME 1250 vm_backtrace.c     rb_control_frame_t *cfp = th->cfp, *end_cfp = RUBY_VM_END_CONTROL_FRAME(th);
RUBY_VM_END_CONTROL_FRAME  981 vm_core.h        (!RUBY_VM_VALID_CONTROL_FRAME_P((cfp), RUBY_VM_END_CONTROL_FRAME(th)))
RUBY_VM_END_CONTROL_FRAME  913 vm_insnhelper.c     const rb_control_frame_t * const eocfp = RUBY_VM_END_CONTROL_FRAME(th); /* end of control frame pointer */