| //===- DWARFTypeUnit.cpp --------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/DebugInfo/DWARF/DWARFTypeUnit.h" |
| #include "llvm/DebugInfo/DIContext.h" |
| #include "llvm/DebugInfo/DWARF/DWARFDebugAbbrev.h" |
| #include "llvm/DebugInfo/DWARF/DWARFDie.h" |
| #include "llvm/DebugInfo/DWARF/DWARFUnit.h" |
| #include "llvm/Support/Format.h" |
| #include "llvm/Support/raw_ostream.h" |
| #include <cinttypes> |
| |
| using namespace llvm; |
| |
| bool DWARFTypeUnit::extractImpl(DataExtractor debug_info, |
| uint32_t *offset_ptr) { |
| if (!DWARFUnit::extractImpl(debug_info, offset_ptr)) |
| return false; |
| TypeHash = debug_info.getU64(offset_ptr); |
| TypeOffset = debug_info.getU32(offset_ptr); |
| // TypeOffset is relative to the beginning of the header, |
| // so we have to account for the leading length field. |
| // FIXME: The size of the length field is 12 in DWARF64. |
| unsigned SizeOfLength = 4; |
| return TypeOffset < getLength() + SizeOfLength; |
| } |
| |
| void DWARFTypeUnit::dump(raw_ostream &OS, bool SummarizeTypes) { |
| DWARFDie TD = getDIEForOffset(TypeOffset + getOffset()); |
| const char *Name = TD.getName(DINameKind::ShortName); |
| |
| if (SummarizeTypes) { |
| OS << "name = '" << Name << "'" |
| << " type_signature = " << format("0x%016" PRIx64, TypeHash) |
| << " length = " << format("0x%08x", getLength()) << '\n'; |
| return; |
| } |
| |
| OS << format("0x%08x", getOffset()) << ": Type Unit:" |
| << " length = " << format("0x%08x", getLength()) |
| << " version = " << format("0x%04x", getVersion()); |
| if (getVersion() >= 5) |
| OS << " unit_type = " << dwarf::UnitTypeString(getUnitType()); |
| OS << " abbr_offset = " << format("0x%04x", getAbbreviations()->getOffset()) |
| << " addr_size = " << format("0x%02x", getAddressByteSize()) |
| << " name = '" << Name << "'" |
| << " type_signature = " << format("0x%016" PRIx64, TypeHash) |
| << " type_offset = " << format("0x%04x", TypeOffset) |
| << " (next unit at " << format("0x%08x", getNextUnitOffset()) << ")\n"; |
| |
| if (DWARFDie TU = getUnitDIE(false)) |
| TU.dump(OS, -1U); |
| else |
| OS << "<type unit can't be parsed!>\n\n"; |
| } |