push_mark_stack   868 gc.c           static void   push_mark_stack(mark_stack_t *, VALUE);
push_mark_stack  4298 gc.c               push_mark_stack(&objspace->mark_stack, obj);
push_mark_stack  4831 gc.c           	push_mark_stack(&data->mark_stack, obj);
push_mark_stack  4843 gc.c           	push_mark_stack(&data->mark_stack, obj);