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//===-- 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);
}
}
}
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