DLLEXPORT void jl_save_system_image(char *fname, char *startscriptname) { jl_gc_collect(); jl_gc_collect(); int en = jl_gc_is_enabled(); jl_gc_disable(); htable_reset(&backref_table, 50000); ios_t f; ios_file(&f, fname, 1, 1, 1, 1); // orphan old Base module if present jl_base_module = (jl_module_t*)jl_get_global(jl_main_module, jl_symbol("Base")); // delete cached slow ASCIIString constructor if present jl_methtable_t *mt = jl_gf_mtable((jl_function_t*)jl_ascii_string_type); jl_array_t *spec = mt->defs->func->linfo->specializations; if (spec->length > 0 && ((jl_lambda_info_t*)jl_cellref(spec,0))->inferred == 0) { mt->cache = JL_NULL; mt->cache_arg1 = JL_NULL; mt->defs->func->linfo->tfunc = (jl_value_t*)jl_null; mt->defs->func->linfo->specializations = NULL; } jl_idtable_type = jl_get_global(jl_base_module, jl_symbol("ObjectIdDict")); jl_serialize_value(&f, jl_array_type->env); jl_serialize_value(&f, jl_main_module); write_int32(&f, jl_get_t_uid_ctr()); write_int32(&f, jl_get_gs_ctr()); htable_reset(&backref_table, 0); ios_t ss; ios_file(&ss, startscriptname, 1, 0, 0, 0); ios_copyall(&f, &ss); ios_close(&ss); ios_putc(0, &f); ios_close(&f); if (en) jl_gc_enable(); }
DLLEXPORT void jl_save_system_image(char *fname, char *startscriptname) { jl_gc_collect(); jl_gc_collect(); int en = jl_gc_is_enabled(); jl_gc_disable(); htable_reset(&backref_table, 50000); ios_t f; ios_file(&f, fname, 1, 1, 1, 1); if (jl_current_module != jl_system_module) { // set up for stage 1 bootstrap, where the System module is already // loaded and we are loading an updated copy in a separate module. // step 1: set Base.System = current_module jl_binding_t *b = jl_get_binding_wr(jl_base_module, jl_symbol("System")); b->value = (jl_value_t*)jl_current_module; assert(b->constp); // step 2: set current_module.Base = Base jl_set_const(jl_current_module, jl_symbol("Base"), (jl_value_t*)jl_base_module); // step 3: current_module.System = current_module b = jl_get_binding_wr(jl_current_module, jl_symbol("System")); b->value = (jl_value_t*)jl_current_module; assert(b->constp); // step 4: remove current_module.current_module b = jl_get_binding_wr(jl_current_module, jl_current_module->name); b->value = NULL; b->constp = 0; // step 5: rename current_module to System jl_current_module->name = jl_symbol("System"); // step 6: orphan old system module jl_system_module = jl_current_module; } else { // delete cached slow ASCIIString constructor jl_methtable_t *mt = jl_gf_mtable((jl_function_t*)jl_ascii_string_type); mt->cache = NULL; mt->cache_1arg = NULL; mt->defs->func->linfo->tfunc = (jl_value_t*)jl_null; mt->defs->func->linfo->specializations = NULL; } jl_idtable_type = jl_get_global(jl_system_module, jl_symbol("IdTable")); idtable_list = jl_alloc_cell_1d(0); jl_serialize_value(&f, jl_array_type->env); jl_serialize_value(&f, jl_base_module); jl_serialize_value(&f, jl_current_module); jl_serialize_value(&f, idtable_list); //jl_serialize_finalizers(&f); write_int32(&f, jl_get_t_uid_ctr()); write_int32(&f, jl_get_gs_ctr()); htable_reset(&backref_table, 0); ios_t ss; ios_file(&ss, startscriptname, 1, 0, 0, 0); ios_copyall(&f, &ss); ios_close(&ss); ios_putc(0, &f); ios_close(&f); if (en) jl_gc_enable(); }