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c5632126fc
This creates a new library called BinaryFormat that has all of the headers from llvm/Support containing structure and layout definitions for various types of binary formats like dwarf, coff, elf, etc as well as the code for identifying a file from its magic. Differential Revision: https://reviews.llvm.org/D33843 llvm-svn: 304864
70 lines
2.4 KiB
C++
70 lines
2.4 KiB
C++
//===- DWARFDebugPubTable.cpp ---------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/DebugInfo/DWARF/DWARFDebugPubTable.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/BinaryFormat/Dwarf.h"
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#include "llvm/Support/DataExtractor.h"
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#include "llvm/Support/Format.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cstdint>
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using namespace llvm;
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using namespace dwarf;
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DWARFDebugPubTable::DWARFDebugPubTable(StringRef Data, bool LittleEndian,
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bool GnuStyle)
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: GnuStyle(GnuStyle) {
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DataExtractor PubNames(Data, LittleEndian, 0);
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uint32_t Offset = 0;
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while (PubNames.isValidOffset(Offset)) {
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Sets.push_back({});
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Set &SetData = Sets.back();
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SetData.Length = PubNames.getU32(&Offset);
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SetData.Version = PubNames.getU16(&Offset);
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SetData.Offset = PubNames.getU32(&Offset);
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SetData.Size = PubNames.getU32(&Offset);
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while (Offset < Data.size()) {
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uint32_t DieRef = PubNames.getU32(&Offset);
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if (DieRef == 0)
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break;
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uint8_t IndexEntryValue = GnuStyle ? PubNames.getU8(&Offset) : 0;
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const char *Name = PubNames.getCStr(&Offset);
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SetData.Entries.push_back(
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{DieRef, PubIndexEntryDescriptor(IndexEntryValue), Name});
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}
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}
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}
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void DWARFDebugPubTable::dump(StringRef Name, raw_ostream &OS) const {
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OS << "\n." << Name << " contents:\n";
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for (const Set &S : Sets) {
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OS << "length = " << format("0x%08x", S.Length);
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OS << " version = " << format("0x%04x", S.Version);
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OS << " unit_offset = " << format("0x%08x", S.Offset);
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OS << " unit_size = " << format("0x%08x", S.Size) << '\n';
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OS << (GnuStyle ? "Offset Linkage Kind Name\n"
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: "Offset Name\n");
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for (const Entry &E : S.Entries) {
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OS << format("0x%8.8x ", E.SecOffset);
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if (GnuStyle) {
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StringRef EntryLinkage =
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GDBIndexEntryLinkageString(E.Descriptor.Linkage);
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StringRef EntryKind = dwarf::GDBIndexEntryKindString(E.Descriptor.Kind);
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OS << format("%-8s", EntryLinkage.data()) << ' '
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<< format("%-8s", EntryKind.data()) << ' ';
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}
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OS << '\"' << E.Name << "\"\n";
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}
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}
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}
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