2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
150 lines
5.2 KiB
C++
150 lines
5.2 KiB
C++
//===-- TestDWARFCallFrameInfo.cpp ------------------------------*- C++ -*-===//
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//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "gtest/gtest.h"
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#include "Plugins/ObjectFile/ELF/ObjectFileELF.h"
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#include "Plugins/Process/Utility/RegisterContext_x86.h"
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#include "TestingSupport/TestUtilities.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/ModuleSpec.h"
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#include "lldb/Core/Section.h"
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#include "lldb/Host/FileSystem.h"
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#include "lldb/Host/HostInfo.h"
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#include "lldb/Symbol/DWARFCallFrameInfo.h"
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#include "lldb/Utility/StreamString.h"
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#include "llvm/Support/FileUtilities.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Program.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace lldb_private;
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using namespace lldb;
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class DWARFCallFrameInfoTest : public testing::Test {
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public:
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void SetUp() override {
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FileSystem::Initialize();
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HostInfo::Initialize();
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ObjectFileELF::Initialize();
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}
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void TearDown() override {
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ObjectFileELF::Terminate();
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HostInfo::Terminate();
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FileSystem::Terminate();
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}
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protected:
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void TestBasic(DWARFCallFrameInfo::Type type, llvm::StringRef symbol);
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};
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#define ASSERT_NO_ERROR(x) \
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if (std::error_code ASSERT_NO_ERROR_ec = x) { \
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llvm::SmallString<128> MessageStorage; \
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llvm::raw_svector_ostream Message(MessageStorage); \
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Message << #x ": did not return errc::success.\n" \
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<< "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \
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<< "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \
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GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \
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} else { \
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}
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namespace lldb_private {
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static std::ostream &operator<<(std::ostream &OS, const UnwindPlan::Row &row) {
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StreamString SS;
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row.Dump(SS, nullptr, nullptr, 0);
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return OS << SS.GetData();
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}
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} // namespace lldb_private
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static UnwindPlan::Row GetExpectedRow0() {
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UnwindPlan::Row row;
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row.SetOffset(0);
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row.GetCFAValue().SetIsRegisterPlusOffset(dwarf_rsp_x86_64, 8);
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row.SetRegisterLocationToAtCFAPlusOffset(dwarf_rip_x86_64, -8, false);
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return row;
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}
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static UnwindPlan::Row GetExpectedRow1() {
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UnwindPlan::Row row;
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row.SetOffset(1);
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row.GetCFAValue().SetIsRegisterPlusOffset(dwarf_rsp_x86_64, 16);
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row.SetRegisterLocationToAtCFAPlusOffset(dwarf_rip_x86_64, -8, false);
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row.SetRegisterLocationToAtCFAPlusOffset(dwarf_rbp_x86_64, -16, false);
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return row;
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}
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static UnwindPlan::Row GetExpectedRow2() {
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UnwindPlan::Row row;
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row.SetOffset(4);
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row.GetCFAValue().SetIsRegisterPlusOffset(dwarf_rbp_x86_64, 16);
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row.SetRegisterLocationToAtCFAPlusOffset(dwarf_rip_x86_64, -8, false);
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row.SetRegisterLocationToAtCFAPlusOffset(dwarf_rbp_x86_64, -16, false);
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return row;
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}
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void DWARFCallFrameInfoTest::TestBasic(DWARFCallFrameInfo::Type type,
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llvm::StringRef symbol) {
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std::string yaml = GetInputFilePath("basic-call-frame-info.yaml");
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llvm::SmallString<128> obj;
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ASSERT_NO_ERROR(llvm::sys::fs::createTemporaryFile(
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"basic-call-frame-info-%%%%%%", "obj", obj));
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llvm::FileRemover obj_remover(obj);
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llvm::StringRef args[] = {YAML2OBJ, yaml};
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llvm::StringRef obj_ref = obj;
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const llvm::Optional<llvm::StringRef> redirects[] = {llvm::None, obj_ref,
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llvm::None};
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ASSERT_EQ(0,
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llvm::sys::ExecuteAndWait(YAML2OBJ, args, llvm::None, redirects));
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uint64_t size;
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ASSERT_NO_ERROR(llvm::sys::fs::file_size(obj, size));
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ASSERT_GT(size, 0u);
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auto module_sp = std::make_shared<Module>(ModuleSpec(FileSpec(obj)));
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SectionList *list = module_sp->GetSectionList();
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ASSERT_NE(nullptr, list);
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auto section_sp = list->FindSectionByType(type == DWARFCallFrameInfo::EH
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? eSectionTypeEHFrame
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: eSectionTypeDWARFDebugFrame,
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false);
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ASSERT_NE(nullptr, section_sp);
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DWARFCallFrameInfo cfi(*module_sp->GetObjectFile(), section_sp, type);
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const Symbol *sym = module_sp->FindFirstSymbolWithNameAndType(
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ConstString(symbol), eSymbolTypeAny);
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ASSERT_NE(nullptr, sym);
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UnwindPlan plan(eRegisterKindGeneric);
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ASSERT_TRUE(cfi.GetUnwindPlan(sym->GetAddress(), plan));
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ASSERT_EQ(3, plan.GetRowCount());
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EXPECT_EQ(GetExpectedRow0(), *plan.GetRowAtIndex(0));
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EXPECT_EQ(GetExpectedRow1(), *plan.GetRowAtIndex(1));
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EXPECT_EQ(GetExpectedRow2(), *plan.GetRowAtIndex(2));
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}
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TEST_F(DWARFCallFrameInfoTest, Basic_dwarf3) {
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TestBasic(DWARFCallFrameInfo::DWARF, "debug_frame3");
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}
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TEST_F(DWARFCallFrameInfoTest, Basic_dwarf4) {
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TestBasic(DWARFCallFrameInfo::DWARF, "debug_frame4");
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}
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TEST_F(DWARFCallFrameInfoTest, Basic_eh) {
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TestBasic(DWARFCallFrameInfo::EH, "eh_frame");
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}
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