llvm/lib/DebugInfo/DWARF/DWARFCompileUnit.cpp

   1 //===-- DWARFCompileUnit.cpp ----------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "llvm/DebugInfo/DWARF/DWARFCompileUnit.h"
  10 #include "llvm/DebugInfo/DIContext.h"
  11 #include "llvm/DebugInfo/DWARF/DWARFDie.h"
  12
  13 #include "llvm/Support/Format.h"
  14 #include "llvm/Support/raw_ostream.h"
  15
  16 using namespace llvm;
  17
  18 void DWARFCompileUnit::dump(raw_ostream &OS, DIDumpOptions DumpOpts) {
  19   if (DumpOpts.SummarizeTypes)
  20     return;
  21   int OffsetDumpWidth = 2 * dwarf::getDwarfOffsetByteSize(getFormat());
  22   OS << format("0x%08" PRIx64, getOffset()) << ": Compile Unit:"
  23      << " length = " << format("0x%0*" PRIx64, OffsetDumpWidth, getLength())
  24      << ", format = " << dwarf::FormatString(getFormat())
  25      << ", version = " << format("0x%04x", getVersion());
  26   if (getVersion() >= 5)
  27     OS << ", unit_type = " << dwarf::UnitTypeString(getUnitType());
  28   OS << ", abbr_offset = " << format("0x%04" PRIx64, getAbbrOffset());
  29   if (!getAbbreviations())
  30     OS << " (invalid)";
  31   OS << ", addr_size = " << format("0x%02x", getAddressByteSize());
  32   if (getVersion() >= 5 && (getUnitType() == dwarf::DW_UT_skeleton ||
  33                             getUnitType() == dwarf::DW_UT_split_compile))
  34     OS << ", DWO_id = " << format("0x%016" PRIx64, *getDWOId());
  35   OS << " (next unit at " << format("0x%08" PRIx64, getNextUnitOffset())
  36      << ")\n";
  37
  38   if (DWARFDie CUDie = getUnitDIE(false)) {
  39     CUDie.dump(OS, 0, DumpOpts);
  40     if (DumpOpts.DumpNonSkeleton) {
  41       DWARFDie NonSkeletonCUDie = getNonSkeletonUnitDIE(false);
  42       if (NonSkeletonCUDie && CUDie != NonSkeletonCUDie)
  43         NonSkeletonCUDie.dump(OS, 0, DumpOpts);
  44     }
  45   } else {
  46     OS << "<compile unit can't be parsed!>\n\n";
  47   }
  48 }
  49
  50 // VTable anchor.
  51 DWARFCompileUnit::~DWARFCompileUnit() = default;