shell_toplevel_s2a_os_thunk  303 shell/shell_toplevel.h extern AvmBox shell_toplevel_s2a_os_thunk(AvmMethodEnv env, uint32_t argc, AvmBox* argv);
shell_toplevel_s2a_os_thunk  304 shell/shell_toplevel.h #define avmplus_File_read_thunk  shell_toplevel_s2a_os_thunk