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//===--- GlobalMappingLayerTest.cpp - Unit test the global mapping layer --===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/ExecutionEngine/Orc/GlobalMappingLayer.h"
#include "OrcTestCommon.h"
#include "gtest/gtest.h"
using namespace llvm;
using namespace llvm::orc;
namespace {
TEST(GlobalMappingLayerTest, Empty) {
MockBaseLayer<int, std::shared_ptr<Module>> TestBaseLayer;
TestBaseLayer.addModuleImpl =
[](std::shared_ptr<Module> M, std::shared_ptr<JITSymbolResolver> R) {
return 42;
};
TestBaseLayer.findSymbolImpl =
[](const std::string &Name, bool ExportedSymbolsOnly) -> JITSymbol {
if (Name == "bar")
return llvm::JITSymbol(0x4567, JITSymbolFlags::Exported);
return nullptr;
};
GlobalMappingLayer<decltype(TestBaseLayer)> L(TestBaseLayer);
// Test addModule interface.
int H = cantFail(L.addModule(nullptr, nullptr));
EXPECT_EQ(H, 42) << "Incorrect result from addModule";
// Test fall-through for missing symbol.
auto FooSym = L.findSymbol("foo", true);
EXPECT_FALSE(FooSym) << "Found unexpected symbol.";
// Test fall-through for symbol in base layer.
auto BarSym = L.findSymbol("bar", true);
EXPECT_EQ(cantFail(BarSym.getAddress()),
static_cast<JITTargetAddress>(0x4567))
<< "Symbol lookup fall-through failed.";
// Test setup of a global mapping.
L.setGlobalMapping("foo", 0x0123);
auto FooSym2 = L.findSymbol("foo", true);
EXPECT_EQ(cantFail(FooSym2.getAddress()),
static_cast<JITTargetAddress>(0x0123))
<< "Symbol mapping setup failed.";
// Test removal of a global mapping.
L.eraseGlobalMapping("foo");
auto FooSym3 = L.findSymbol("foo", true);
EXPECT_FALSE(FooSym3) << "Symbol mapping removal failed.";
}
}
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