4618ef8cf5
Allow the dumping of .dwo files contents to show up when dumping an executable with split DWARF. Currently if you run llvm-dwarfdump on a binary that has skeleton compile units, you only see the skeleton compile units. Since the main binary has the linked addresses it would be nice to be able to dump DWARF from the .dwo files and how the resolved addresses instead of showing the address index and "<unresolved>" in the output. This patch adds an option that can be specified to dump the non skeleton DIEs named --dwo. Added the ability to use the following options with split dwarf as well: --name <name> --lookup <addr> --debug-info <die-offset>
52 lines
2.0 KiB
C++
52 lines
2.0 KiB
C++
//===-- DWARFCompileUnit.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 "llvm/DebugInfo/DWARF/DWARFCompileUnit.h"
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#include "llvm/DebugInfo/DIContext.h"
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#include "llvm/DebugInfo/DWARF/DWARFDie.h"
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#include "llvm/Support/Format.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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void DWARFCompileUnit::dump(raw_ostream &OS, DIDumpOptions DumpOpts) {
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if (DumpOpts.SummarizeTypes)
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return;
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int OffsetDumpWidth = 2 * dwarf::getDwarfOffsetByteSize(getFormat());
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OS << format("0x%08" PRIx64, getOffset()) << ": Compile Unit:"
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<< " length = " << format("0x%0*" PRIx64, OffsetDumpWidth, getLength())
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<< ", format = " << dwarf::FormatString(getFormat())
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<< ", version = " << format("0x%04x", getVersion());
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if (getVersion() >= 5)
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OS << ", unit_type = " << dwarf::UnitTypeString(getUnitType());
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OS << ", abbr_offset = " << format("0x%04" PRIx64, getAbbrOffset());
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if (!getAbbreviations())
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OS << " (invalid)";
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OS << ", addr_size = " << format("0x%02x", getAddressByteSize());
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if (getVersion() >= 5 && (getUnitType() == dwarf::DW_UT_skeleton ||
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getUnitType() == dwarf::DW_UT_split_compile))
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OS << ", DWO_id = " << format("0x%016" PRIx64, *getDWOId());
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OS << " (next unit at " << format("0x%08" PRIx64, getNextUnitOffset())
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<< ")\n";
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if (DWARFDie CUDie = getUnitDIE(false)) {
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CUDie.dump(OS, 0, DumpOpts);
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if (DumpOpts.DumpNonSkeleton) {
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DWARFDie NonSkeletonCUDie = getNonSkeletonUnitDIE(false);
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if (NonSkeletonCUDie && CUDie != NonSkeletonCUDie)
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NonSkeletonCUDie.dump(OS, 0, DumpOpts);
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}
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} else {
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OS << "<compile unit can't be parsed!>\n\n";
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}
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}
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// VTable anchor.
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DWARFCompileUnit::~DWARFCompileUnit() = default;
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