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#include "OrcTestCommon.h"
#include "llvm/ExecutionEngine/JITLink/JITLinkMemoryManager.h"
#include "llvm/ExecutionEngine/Orc/ExecutorProcessControl.h"
#include "llvm/ExecutionEngine/Orc/JITLinkRedirectableSymbolManager.h"
#include "llvm/ExecutionEngine/Orc/JITTargetMachineBuilder.h"
#include "llvm/ExecutionEngine/Orc/ObjectLinkingLayer.h"
#include "llvm/ExecutionEngine/Orc/Shared/ExecutorAddress.h"
#include "llvm/Testing/Support/Error.h"
#include "gtest/gtest.h"
using namespace llvm;
using namespace llvm::orc;
using namespace llvm::jitlink;
static int initialTarget() { return 42; }
static int middleTarget() { return 13; }
static int finalTarget() { return 53; }
class JITLinkRedirectionManagerTest : public testing::Test {
public:
~JITLinkRedirectionManagerTest() {
if (ES)
if (auto Err = ES->endSession())
ES->reportError(std::move(Err));
}
protected:
void SetUp() override {
OrcNativeTarget::initialize();
auto JTMB = JITTargetMachineBuilder::detectHost();
// Bail out if we can not detect the host.
if (!JTMB) {
consumeError(JTMB.takeError());
GTEST_SKIP();
}
auto DLOrErr = JTMB->getDefaultDataLayoutForTarget();
if (!DLOrErr) {
consumeError(DLOrErr.takeError());
GTEST_SKIP();
}
// COFF-ARM64 is not supported yet
auto Triple = JTMB->getTargetTriple();
if (Triple.isOSBinFormatCOFF() && Triple.isAArch64())
GTEST_SKIP();
if (Triple.isPPC())
GTEST_SKIP();
auto PageSize = sys::Process::getPageSize();
if (!PageSize) {
consumeError(PageSize.takeError());
GTEST_SKIP();
}
ES = std::make_unique<ExecutionSession>(
std::make_unique<UnsupportedExecutorProcessControl>(
nullptr, nullptr, JTMB->getTargetTriple().getTriple(), *PageSize));
JD = &ES->createBareJITDylib("main");
ObjLinkingLayer = std::make_unique<ObjectLinkingLayer>(
*ES, std::make_unique<InProcessMemoryManager>(*PageSize));
DL = std::make_unique<DataLayout>(std::move(*DLOrErr));
}
JITDylib *JD{nullptr};
std::unique_ptr<ExecutionSession> ES;
std::unique_ptr<ObjectLinkingLayer> ObjLinkingLayer;
std::unique_ptr<DataLayout> DL;
};
TEST_F(JITLinkRedirectionManagerTest, BasicRedirectionOperation) {
auto RM = JITLinkRedirectableSymbolManager::Create(*ObjLinkingLayer);
// Bail out if we can not create
if (!RM) {
consumeError(RM.takeError());
GTEST_SKIP();
}
auto MakeTarget = [](int (*Fn)()) {
return ExecutorSymbolDef(ExecutorAddr::fromPtr(Fn),
JITSymbolFlags::Exported |
JITSymbolFlags::Callable);
};
auto RedirectableSymbol = ES->intern("RedirectableTarget");
EXPECT_THAT_ERROR((*RM)->createRedirectableSymbols(
JD->getDefaultResourceTracker(),
{{RedirectableSymbol, MakeTarget(initialTarget)}}),
Succeeded());
auto RTDef = cantFail(ES->lookup({JD}, RedirectableSymbol));
auto RTPtr = RTDef.getAddress().toPtr<int (*)()>();
auto Result = RTPtr();
EXPECT_EQ(Result, 42) << "Failed to call initial target";
EXPECT_THAT_ERROR(
(*RM)->redirect(*JD, {{RedirectableSymbol, MakeTarget(middleTarget)}}),
Succeeded());
Result = RTPtr();
EXPECT_EQ(Result, 13) << "Failed to call middle redirected target";
EXPECT_THAT_ERROR(
(*RM)->redirect(*JD, {{RedirectableSymbol, MakeTarget(finalTarget)}}),
Succeeded());
Result = RTPtr();
EXPECT_EQ(Result, 53) << "Failed to call redirected target";
}
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