ruby_init_stack  2118 gc.c               ruby_init_stack(addr);
ruby_init_stack   777 include/ruby/intern.h #define Init_stack(addr) ruby_init_stack(addr)
ruby_init_stack   992 include/ruby/ruby.h void ruby_init_stack(VALUE*, void*);
ruby_init_stack   993 include/ruby/ruby.h #define ruby_init_stack(addr) ruby_init_stack(addr, rb_ia64_bsp())
ruby_init_stack   995 include/ruby/ruby.h void ruby_init_stack(VALUE*);
ruby_init_stack   999 include/ruby/ruby.h     ruby_init_stack(&variable_in_this_stack_frame);