1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 * Detects static initializers i.e. functions called during static initialization.
9 require({ after_gcc_pass: "cfg" });
11 function process_tree(fn) {
12 for each (let attr in translate_attributes(DECL_ATTRIBUTES(fn)))
13 if (attr.name == "constructor")
14 warning(pretty_func(fn) + " marked with constructor attribute\n");
16 if (decl_name_string(fn) != "__static_initialization_and_destruction_0")
19 let cfg = function_decl_cfg(fn);
20 for (let isn in cfg_isn_iterator(cfg)) {
21 if (isn.tree_code() != GIMPLE_CALL)
23 let decl = gimple_call_fndecl(isn);
24 let lhs = gimple_call_lhs(isn);
26 warning(pretty_var(lhs) + " defined by call to " + pretty_func(decl) +
27 " during static initialization", location_of(lhs));
29 let arg = constructorArg(isn);
31 warning(pretty_var(arg) + " defined by call to constructor " + pretty_func(decl) +
32 " during static initialization", location_of(arg));
34 warning(pretty_func(decl) + " called during static initialization", location_of(decl));
39 function constructorArg(call) {
40 let decl = gimple_call_fndecl(call);
42 if (!DECL_CONSTRUCTOR_P(decl))
45 let arg = gimple_call_arg_iterator(call).next();
46 if (TYPE_MAIN_VARIANT(TREE_TYPE(TREE_TYPE(arg))) != DECL_CONTEXT(decl))
47 throw new Error("malformed constructor call?!");
49 return arg.tree_code() == ADDR_EXPR ? TREE_OPERAND(arg, 0) : arg;
52 function pretty_func(fn) {
53 return rfunc_string(rectify_function_decl(fn));
56 function pretty_var(v) {
57 return type_string(TREE_TYPE(v)) + " " + expr_display(v);