1 //===--- GlobalMappingLayerTest.cpp - Unit test the global mapping layer --===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "llvm/ExecutionEngine/Orc/GlobalMappingLayer.h" 11 #include "OrcTestCommon.h" 12 #include "gtest/gtest.h" 13 14 using namespace llvm; 15 using namespace llvm::orc; 16 17 namespace { 18 19 TEST(GlobalMappingLayerTest, Empty) { 20 MockBaseLayer<int, std::shared_ptr<Module>> TestBaseLayer; 21 22 TestBaseLayer.addModuleImpl = 23 [](std::shared_ptr<Module> M, std::shared_ptr<JITSymbolResolver> R) { 24 return 42; 25 }; 26 27 TestBaseLayer.findSymbolImpl = 28 [](const std::string &Name, bool ExportedSymbolsOnly) -> JITSymbol { 29 if (Name == "bar") 30 return llvm::JITSymbol(0x4567, JITSymbolFlags::Exported); 31 return nullptr; 32 }; 33 34 GlobalMappingLayer<decltype(TestBaseLayer)> L(TestBaseLayer); 35 36 // Test addModule interface. 37 int H = cantFail(L.addModule(nullptr, nullptr)); 38 EXPECT_EQ(H, 42) << "Incorrect result from addModule"; 39 40 // Test fall-through for missing symbol. 41 auto FooSym = L.findSymbol("foo", true); 42 EXPECT_FALSE(FooSym) << "Found unexpected symbol."; 43 44 // Test fall-through for symbol in base layer. 45 auto BarSym = L.findSymbol("bar", true); 46 EXPECT_EQ(cantFail(BarSym.getAddress()), 47 static_cast<JITTargetAddress>(0x4567)) 48 << "Symbol lookup fall-through failed."; 49 50 // Test setup of a global mapping. 51 L.setGlobalMapping("foo", 0x0123); 52 auto FooSym2 = L.findSymbol("foo", true); 53 EXPECT_EQ(cantFail(FooSym2.getAddress()), 54 static_cast<JITTargetAddress>(0x0123)) 55 << "Symbol mapping setup failed."; 56 57 // Test removal of a global mapping. 58 L.eraseGlobalMapping("foo"); 59 auto FooSym3 = L.findSymbol("foo", true); 60 EXPECT_FALSE(FooSym3) << "Symbol mapping removal failed."; 61 } 62 63 } 64
