ClangCheckerRegistry::ClangCheckerRegistry(ArrayRef<std::string> plugins,
DiagnosticsEngine *diags) {
registerBuiltinCheckers(*this);
for (ArrayRef<std::string>::iterator i = plugins.begin(), e = plugins.end();
i != e; ++i) {
// Get access to the plugin.
DynamicLibrary lib = DynamicLibrary::getPermanentLibrary(i->c_str());
// See if it's compatible with this build of clang.
const char *pluginAPIVersion =
(const char *) lib.getAddressOfSymbol("clang_analyzerAPIVersionString");
if (!isCompatibleAPIVersion(pluginAPIVersion)) {
warnIncompatible(diags, *i, pluginAPIVersion);
continue;
}
// Register its checkers.
RegisterCheckersFn registerPluginCheckers =
(RegisterCheckersFn) (intptr_t) lib.getAddressOfSymbol(
"clang_registerCheckers");
if (registerPluginCheckers)
registerPluginCheckers(*this);
}
}
TEST(DynamicLibrary, Overload) {
{
std::string Err;
llvm_shutdown_obj Shutdown;
DynamicLibrary DL =
DynamicLibrary::getPermanentLibrary(LibPath().c_str(), &Err);
EXPECT_TRUE(DL.isValid());
EXPECT_TRUE(Err.empty());
GetString GS = FuncPtr<GetString>(DL.getAddressOfSymbol("TestA"));
EXPECT_TRUE(GS != nullptr && GS != &TestA);
EXPECT_EQ(StdString(GS()), "LibCall");
GS = FuncPtr<GetString>(DynamicLibrary::SearchForAddressOfSymbol("TestA"));
EXPECT_TRUE(GS != nullptr && GS != &TestA);
EXPECT_EQ(StdString(GS()), "LibCall");
DL = DynamicLibrary::getPermanentLibrary(nullptr, &Err);
EXPECT_TRUE(DL.isValid());
EXPECT_TRUE(Err.empty());
// Test overloading local symbols does not occur by default
GS = FuncPtr<GetString>(DynamicLibrary::SearchForAddressOfSymbol("TestA"));
EXPECT_TRUE(GS != nullptr && GS == &TestA);
EXPECT_EQ(StdString(GS()), "ProcessCall");
GS = FuncPtr<GetString>(DL.getAddressOfSymbol("TestA"));
EXPECT_TRUE(GS != nullptr && GS == &TestA);
EXPECT_EQ(StdString(GS()), "ProcessCall");
// Test overloading by forcing library priority when searching for a symbol
DynamicLibrary::SearchOrder = DynamicLibrary::SO_LoadedFirst;
GS = FuncPtr<GetString>(DynamicLibrary::SearchForAddressOfSymbol("TestA"));
EXPECT_TRUE(GS != nullptr && GS != &TestA);
EXPECT_EQ(StdString(GS()), "LibCall");
DynamicLibrary::AddSymbol("TestA", PtrFunc(&OverloadTestA));
GS = FuncPtr<GetString>(DL.getAddressOfSymbol("TestA"));
EXPECT_TRUE(GS != nullptr && GS != &OverloadTestA);
GS = FuncPtr<GetString>(DynamicLibrary::SearchForAddressOfSymbol("TestA"));
EXPECT_TRUE(GS != nullptr && GS == &OverloadTestA);
EXPECT_EQ(StdString(GS()), "OverloadCall");
}
EXPECT_TRUE(FuncPtr<GetString>(DynamicLibrary::SearchForAddressOfSymbol(
"TestA")) == nullptr);
// Check serach ordering is reset to default after call to llvm_shutdown
EXPECT_TRUE(DynamicLibrary::SearchOrder == DynamicLibrary::SO_Linker);
}
TEST(DynamicLibrary, Overload) {
{
std::string Err;
llvm_shutdown_obj Shutdown;
DynamicLibrary DL =
DynamicLibrary::getPermanentLibrary(LibPath().c_str(), &Err);
EXPECT_TRUE(DL.isValid());
EXPECT_TRUE(Err.empty());
GetString GS = FuncPtr<GetString>(DL.getAddressOfSymbol("TestA"));
EXPECT_TRUE(GS != nullptr && GS != &TestA);
EXPECT_EQ(StdString(GS()), "LibCall");
GS = FuncPtr<GetString>(DynamicLibrary::SearchForAddressOfSymbol("TestA"));
EXPECT_TRUE(GS != nullptr && GS != &TestA);
EXPECT_EQ(StdString(GS()), "LibCall");
DL = DynamicLibrary::getPermanentLibrary(nullptr, &Err);
EXPECT_TRUE(DL.isValid());
EXPECT_TRUE(Err.empty());
GS = FuncPtr<GetString>(DynamicLibrary::SearchForAddressOfSymbol("TestA"));
EXPECT_TRUE(GS != nullptr && GS == &TestA);
EXPECT_EQ(StdString(GS()), "ProcessCall");
GS = FuncPtr<GetString>(DL.getAddressOfSymbol("TestA"));
EXPECT_TRUE(GS != nullptr && GS == &TestA);
EXPECT_EQ(StdString(GS()), "ProcessCall");
DynamicLibrary::AddSymbol("TestA", PtrFunc(&OverloadTestA));
GS = FuncPtr<GetString>(DL.getAddressOfSymbol("TestA"));
EXPECT_TRUE(GS != nullptr && GS != &OverloadTestA);
GS = FuncPtr<GetString>(DynamicLibrary::SearchForAddressOfSymbol("TestA"));
EXPECT_TRUE(GS != nullptr && GS == &OverloadTestA);
EXPECT_EQ(StdString(GS()), "OverloadCall");
}
EXPECT_TRUE(FuncPtr<GetString>(DynamicLibrary::SearchForAddressOfSymbol(
"TestA")) == nullptr);
}
