[Orc] Add missing file for r251604.

llvm-svn: 251605

unittests/ExecutionEngine/Orc/ObjectLinkingLayerTest.cpp

@@ -0,0 +1,94 @@
+//===-- ObjectLinkingLayerTest.cpp - Unit tests for object linking layer --===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ExecutionEngine/ExecutionEngine.h"
+#include "llvm/ExecutionEngine/SectionMemoryManager.h"
+#include "llvm/ExecutionEngine/Orc/CompileUtils.h"
+#include "llvm/ExecutionEngine/Orc/LambdaResolver.h"
+#include "llvm/ExecutionEngine/Orc/ObjectLinkingLayer.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/LLVMContext.h"
+#include "gtest/gtest.h"
+
+using namespace llvm;
+using namespace llvm::orc;
+
+namespace {
+
+TEST(ObjectLinkingLayerTest, TestSetProcessAllSections) {
+
+  class SectionMemoryManagerWrapper : public SectionMemoryManager {
+  public:
+    SectionMemoryManagerWrapper(bool &DebugSeen) : DebugSeen(DebugSeen) {}
+    uint8_t *allocateDataSection(uintptr_t Size, unsigned Alignment,
+                                 unsigned SectionID,
+                                 StringRef SectionName,
+                                 bool IsReadOnly) override {
+      if (SectionName == ".debug_str")
+        DebugSeen = true;
+      return SectionMemoryManager::allocateDataSection(Size, Alignment,
+                                                         SectionID,
+                                                         SectionName,
+                                                         IsReadOnly);
+    }
+  private:
+    bool DebugSeen;
+  };
+
+  ObjectLinkingLayer<> ObjLayer;
+
+  auto M = llvm::make_unique<Module>("", getGlobalContext());
+  M->setTargetTriple("x86_64-unknown-linux-gnu");
+  Type *Int32Ty = IntegerType::get(getGlobalContext(), 32);
+  GlobalVariable *GV =
+    new GlobalVariable(*M, Int32Ty, false, GlobalValue::ExternalLinkage,
+                         ConstantInt::get(Int32Ty, 42), "foo");
+
+  GV->setSection(".debug_str");
+
+  std::unique_ptr<TargetMachine> TM(
+    EngineBuilder().selectTarget(Triple(M->getTargetTriple()), "", "",
+                                 SmallVector<std::string, 1>()));
+  if (!TM)
+    return;
+
+  auto OwningObj = SimpleCompiler(*TM)(*M);
+  std::vector<object::ObjectFile*> Objs;
+  Objs.push_back(OwningObj.getBinary());
+
+  bool DebugSectionSeen = false;
+  SectionMemoryManagerWrapper SMMW(DebugSectionSeen);
+  auto Resolver =
+    createLambdaResolver(
+      [](const std::string &Name) {
+        return RuntimeDyld::SymbolInfo(nullptr);
+      },
+      [](const std::string &Name) {
+        return RuntimeDyld::SymbolInfo(nullptr);
+      });
+
+  {
+    // Test with ProcessAllSections = false (the default).
+    auto H = ObjLayer.addObjectSet(Objs, &SMMW, &*Resolver);
+    EXPECT_EQ(DebugSectionSeen, false)
+      << "Unexpected debug info section";
+    ObjLayer.removeObjectSet(H);
+  }
+
+  {
+    // Test with ProcessAllSections = true.
+    ObjLayer.setProcessAllSections(true);
+    auto H = ObjLayer.addObjectSet(Objs, &SMMW, &*Resolver);
+    EXPECT_EQ(DebugSectionSeen, true)
+      << "Expected debug info section not seen";
+    ObjLayer.removeObjectSet(H);
+  }
+}
+
+}