llvm/lib/DebugInfo/DWARF/DWARFTypeUnit.cpp

   1 //===- DWARFTypeUnit.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/DWARFTypeUnit.h"
  10 #include "llvm/DebugInfo/DIContext.h"
  11 #include "llvm/DebugInfo/DWARF/DWARFDie.h"
  12 #include "llvm/Support/Format.h"
  13 #include "llvm/Support/raw_ostream.h"
  14 #include <cinttypes>
  15
  16 using namespace llvm;
  17
  18 void DWARFTypeUnit::dump(raw_ostream &OS, DIDumpOptions DumpOpts) {
  19   DWARFDie TD = getDIEForOffset(getTypeOffset() + getOffset());
  20   const char *Name = TD.getName(DINameKind::ShortName);
  21   int OffsetDumpWidth = 2 * dwarf::getDwarfOffsetByteSize(getFormat());
  22
  23   if (DumpOpts.SummarizeTypes) {
  24     OS << "name = '" << Name << "'"
  25        << ", type_signature = " << format("0x%016" PRIx64, getTypeHash())
  26        << ", length = " << format("0x%0*" PRIx64, OffsetDumpWidth, getLength())
  27        << '\n';
  28     return;
  29   }
  30
  31   OS << format("0x%08" PRIx64, getOffset()) << ": Type Unit:"
  32      << " length = " << format("0x%0*" PRIx64, OffsetDumpWidth, getLength())
  33      << ", format = " << dwarf::FormatString(getFormat())
  34      << ", version = " << format("0x%04x", getVersion());
  35   if (getVersion() >= 5)
  36     OS << ", unit_type = " << dwarf::UnitTypeString(getUnitType());
  37   OS << ", abbr_offset = " << format("0x%04" PRIx64, getAbbrOffset());
  38   if (!getAbbreviations())
  39     OS << " (invalid)";
  40   OS << ", addr_size = " << format("0x%02x", getAddressByteSize())
  41      << ", name = '" << Name << "'"
  42      << ", type_signature = " << format("0x%016" PRIx64, getTypeHash())
  43      << ", type_offset = " << format("0x%04" PRIx64, getTypeOffset())
  44      << " (next unit at " << format("0x%08" PRIx64, getNextUnitOffset())
  45      << ")\n";
  46
  47   if (DWARFDie TU = getUnitDIE(false))
  48     TU.dump(OS, 0, DumpOpts);
  49   else
  50     OS << "<type unit can't be parsed!>\n\n";
  51 }