290e482342
As usual with that header cleanup series, some implicit dependencies now need to be explicit: llvm/DebugInfo/DWARF/DWARFContext.h no longer includes: - "llvm/DebugInfo/DWARF/DWARFAcceleratorTable.h" - "llvm/DebugInfo/DWARF/DWARFCompileUnit.h" - "llvm/DebugInfo/DWARF/DWARFDebugAbbrev.h" - "llvm/DebugInfo/DWARF/DWARFDebugAranges.h" - "llvm/DebugInfo/DWARF/DWARFDebugFrame.h" - "llvm/DebugInfo/DWARF/DWARFDebugLoc.h" - "llvm/DebugInfo/DWARF/DWARFDebugMacro.h" - "llvm/DebugInfo/DWARF/DWARFGdbIndex.h" - "llvm/DebugInfo/DWARF/DWARFSection.h" - "llvm/DebugInfo/DWARF/DWARFTypeUnit.h" - "llvm/DebugInfo/DWARF/DWARFUnitIndex.h" Plus llvm/Support/Errc.h not included by a bunch of llvm/DebugInfo/DWARF/DWARF*.h files Preprocessed lines to build llvm on my setup: after: 1065629059 before: 1066621848 Which is a great diff! Discourse thread: https://discourse.llvm.org/t/include-what-you-use-include-cleanup Differential Revision: https://reviews.llvm.org/D119723
82 lines
3.1 KiB
C++
82 lines
3.1 KiB
C++
//===-llvm/unittest/DebugInfo/DWARFDieManualExtractTest.cpp---------------===//
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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 "DwarfGenerator.h"
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#include "DwarfUtils.h"
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#include "llvm/BinaryFormat/Dwarf.h"
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#include "llvm/DebugInfo/DWARF/DWARFCompileUnit.h"
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#include "llvm/DebugInfo/DWARF/DWARFContext.h"
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#include "llvm/ObjectYAML/DWARFEmitter.h"
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#include "llvm/Testing/Support/Error.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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using namespace llvm::dwarf;
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using namespace utils;
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namespace {
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TEST(DWARFDie, manualExtractDump) {
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typedef uint32_t AddrType;
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uint16_t Version = 4;
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Triple Triple = getDefaultTargetTripleForAddrSize(sizeof(AddrType));
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if (!isConfigurationSupported(Triple))
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GTEST_SKIP();
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auto ExpectedDG = dwarfgen::Generator::create(Triple, Version);
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ASSERT_THAT_EXPECTED(ExpectedDG, Succeeded());
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dwarfgen::Generator *DG = ExpectedDG.get().get();
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dwarfgen::CompileUnit &DGCU = DG->addCompileUnit();
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dwarfgen::DIE CUDie = DGCU.getUnitDIE();
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CUDie.addAttribute(DW_AT_name, DW_FORM_strp, "/tmp/main.c");
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CUDie.addAttribute(DW_AT_language, DW_FORM_data2, DW_LANG_C);
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dwarfgen::DIE SubprogramDie = CUDie.addChild(DW_TAG_subprogram);
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SubprogramDie.addAttribute(DW_AT_name, DW_FORM_strp, "main");
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SubprogramDie.addAttribute(DW_AT_low_pc, DW_FORM_addr, 0x1000U);
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SubprogramDie.addAttribute(DW_AT_high_pc, DW_FORM_addr, 0x2000U);
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StringRef FileBytes = DG->generate();
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MemoryBufferRef FileBuffer(FileBytes, "dwarf");
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auto Obj = object::ObjectFile::createObjectFile(FileBuffer);
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EXPECT_TRUE((bool)Obj);
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std::unique_ptr<DWARFContext> Ctx = DWARFContext::create(**Obj);
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DWARFCompileUnit *CU = Ctx->getCompileUnitForOffset(0);
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ASSERT_NE(nullptr, CU);
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// Manually extracting DWARF DIE.
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uint64_t DIEOffset = CU->getOffset() + CU->getHeaderSize();
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uint64_t NextCUOffset = CU->getNextUnitOffset();
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DWARFDebugInfoEntry DieInfo;
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DWARFDataExtractor DebugInfoData = CU->getDebugInfoExtractor();
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ASSERT_TRUE(DieInfo.extractFast(*CU, &DIEOffset, DebugInfoData, NextCUOffset,
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UINT32_MAX));
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DWARFDie Die(CU, &DieInfo);
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ASSERT_TRUE(Die.isValid());
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ASSERT_TRUE(Die.hasChildren());
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// Since we have extracted manually DieArray is empty.
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// Dump function should respect the default flags and print just current DIE,
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// and not explore children.
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SmallString<512> Output;
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raw_svector_ostream OS(Output);
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Die.dump(OS);
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constexpr size_t NumOfLines = 3;
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SmallVector<StringRef, NumOfLines> Strings;
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SmallVector<StringRef, NumOfLines> ValidStrings = {
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"0x0000000b: DW_TAG_compile_unit",
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" DW_AT_name (\"/tmp/main.c\")",
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" DW_AT_language (DW_LANG_C)"};
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Output.str().split(Strings, '\n', -1, false);
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ASSERT_EQ(Strings.size(), NumOfLines);
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for (size_t I = 0; I < NumOfLines; ++I)
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EXPECT_EQ(ValidStrings[I], Strings[I]);
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}
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} // end anonymous namespace
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