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//===- DWARFDebugPubTable.cpp ---------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/DebugInfo/DWARF/DWARFDebugPubTable.h"
#include "llvm/DebugInfo/DWARF/DWARFDataExtractor.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/Support/DataExtractor.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
#include <cstdint>
using namespace llvm;
using namespace dwarf;
DWARFDebugPubTable::DWARFDebugPubTable(const DWARFObject &Obj,
const DWARFSection &Sec,
bool LittleEndian, bool GnuStyle)
: GnuStyle(GnuStyle) {
DWARFDataExtractor PubNames(Obj, Sec, LittleEndian, 0);
uint32_t Offset = 0;
while (PubNames.isValidOffset(Offset)) {
Sets.push_back({});
Set &SetData = Sets.back();
SetData.Length = PubNames.getU32(&Offset);
SetData.Version = PubNames.getU16(&Offset);
SetData.Offset = PubNames.getRelocatedValue(4, &Offset);
SetData.Size = PubNames.getU32(&Offset);
while (Offset < Sec.Data.size()) {
uint32_t DieRef = PubNames.getU32(&Offset);
if (DieRef == 0)
break;
uint8_t IndexEntryValue = GnuStyle ? PubNames.getU8(&Offset) : 0;
StringRef Name = PubNames.getCStrRef(&Offset);
SetData.Entries.push_back(
{DieRef, PubIndexEntryDescriptor(IndexEntryValue), Name});
}
}
}
void DWARFDebugPubTable::dump(raw_ostream &OS) const {
for (const Set &S : Sets) {
OS << "length = " << format("0x%08x", S.Length);
OS << " version = " << format("0x%04x", S.Version);
OS << " unit_offset = " << format("0x%08x", S.Offset);
OS << " unit_size = " << format("0x%08x", S.Size) << '\n';
OS << (GnuStyle ? "Offset Linkage Kind Name\n"
: "Offset Name\n");
for (const Entry &E : S.Entries) {
OS << format("0x%8.8x ", E.SecOffset);
if (GnuStyle) {
StringRef EntryLinkage =
GDBIndexEntryLinkageString(E.Descriptor.Linkage);
StringRef EntryKind = dwarf::GDBIndexEntryKindString(E.Descriptor.Kind);
OS << format("%-8s", EntryLinkage.data()) << ' '
<< format("%-8s", EntryKind.data()) << ' ';
}
OS << '\"' << E.Name << "\"\n";
}
}
}
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