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 "gtest/gtest.h" 12 13 using namespace llvm; 14 using namespace llvm::orc; 15 16 namespace { 17 18 struct MockBaseLayer { 19 20 typedef int ModuleSetHandleT; 21 22 JITSymbol findSymbol(const std::string &Name, bool ExportedSymbolsOnly) { 23 if (Name == "bar") 24 return llvm::orc::JITSymbol(0x4567, JITSymbolFlags::Exported); 25 return nullptr; 26 } 27 28 }; 29 30 TEST(GlobalMappingLayerTest, Empty) { 31 MockBaseLayer M; 32 GlobalMappingLayer<MockBaseLayer> L(M); 33 34 // Test fall-through for missing symbol. 35 auto FooSym = L.findSymbol("foo", true); 36 EXPECT_FALSE(FooSym) << "Found unexpected symbol."; 37 38 // Test fall-through for symbol in base layer. 39 auto BarSym = L.findSymbol("bar", true); 40 EXPECT_EQ(BarSym.getAddress(), static_cast<TargetAddress>(0x4567)) 41 << "Symbol lookup fall-through failed."; 42 43 // Test setup of a global mapping. 44 L.setGlobalMapping("foo", 0x0123); 45 auto FooSym2 = L.findSymbol("foo", true); 46 EXPECT_EQ(FooSym2.getAddress(), static_cast<TargetAddress>(0x0123)) 47 << "Symbol mapping setup failed."; 48 49 // Test removal of a global mapping. 50 L.eraseGlobalMapping("foo"); 51 auto FooSym3 = L.findSymbol("foo", true); 52 EXPECT_FALSE(FooSym3) << "Symbol mapping removal failed."; 53 } 54 55 } 56
