08426e1f9f
This simplifies some code which had StringRefs to begin with, and makes other code more complicated which had const char* to begin with. In the end, I think this makes for a more idiomatic and platform agnostic API. Not all platforms launch process with null terminated c-string arrays for the environment pointer and argv, but the api was designed that way because it allowed easy pass-through for posix-based platforms. There's a little additional overhead now since on posix based platforms we'll be takign StringRefs which were constructed from null terminated strings and then copying them to null terminate them again, but from a readability and usability standpoint of the API user, I think this API signature is strictly better. llvm-svn: 334518
145 lines
5.1 KiB
C++
145 lines
5.1 KiB
C++
//===-- TestDWARFCallFrameInfo.cpp ------------------------------*- C++ -*-===//
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//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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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 "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/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 "TestingSupport/TestUtilities.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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#include "gtest/gtest.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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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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}
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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, false)));
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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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