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0e901207cf
This is a recommit of 252842 which was reverted in 252859. The issue was using %s format specifier for a StringRef - used Format's left_justify(StringRef, int) instead. It'd be nice to have __attribute__((format(..))) on llvm::format, but apparently it's only implemented for c-style variadics, not C++ variadic templates. Perhaps we could fix that & conditionalize the attribute on such... llvm-svn: 253065
124 lines
3.8 KiB
C++
124 lines
3.8 KiB
C++
//===-- DWARFUnitIndex.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/DWARFUnitIndex.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/ErrorHandling.h"
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namespace llvm {
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bool DWARFUnitIndex::Header::parse(DataExtractor IndexData,
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uint32_t *OffsetPtr) {
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if (!IndexData.isValidOffsetForDataOfSize(*OffsetPtr, 16))
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return false;
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Version = IndexData.getU32(OffsetPtr);
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NumColumns = IndexData.getU32(OffsetPtr);
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NumUnits = IndexData.getU32(OffsetPtr);
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NumBuckets = IndexData.getU32(OffsetPtr);
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return Version <= 2;
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}
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void DWARFUnitIndex::Header::dump(raw_ostream &OS) const {
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OS << format("version = %u slots = %u\n\n", Version, NumBuckets);
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}
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bool DWARFUnitIndex::parse(DataExtractor IndexData) {
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uint32_t Offset = 0;
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if (!Header.parse(IndexData, &Offset))
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return false;
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if (!IndexData.isValidOffsetForDataOfSize(
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Offset, Header.NumBuckets * (8 + 4) +
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(2 * Header.NumUnits + 1) * 4 * Header.NumColumns))
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return false;
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Rows = llvm::make_unique<HashRow[]>(Header.NumBuckets);
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auto Contribs =
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llvm::make_unique<HashRow::SectionContribution *[]>(Header.NumUnits);
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ColumnKinds = llvm::make_unique<DwarfSection[]>(Header.NumColumns);
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// Read Hash Table of Signatures
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for (unsigned i = 0; i != Header.NumBuckets; ++i)
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Rows[i].Signature = IndexData.getU64(&Offset);
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// Read Parallel Table of Indexes
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for (unsigned i = 0; i != Header.NumBuckets; ++i) {
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auto Index = IndexData.getU32(&Offset);
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if (!Index)
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continue;
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Rows[i].Contributions =
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llvm::make_unique<HashRow::SectionContribution[]>(Header.NumColumns);
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Contribs[Index - 1] = Rows[i].Contributions.get();
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}
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// Read the Column Headers
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for (unsigned i = 0; i != Header.NumColumns; ++i)
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ColumnKinds[i] = static_cast<DwarfSection>(IndexData.getU32(&Offset));
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// Read Table of Section Offsets
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for (unsigned i = 0; i != Header.NumUnits; ++i) {
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auto *Contrib = Contribs[i];
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for (unsigned i = 0; i != Header.NumColumns; ++i) {
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Contrib[i].Offset = IndexData.getU32(&Offset);
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}
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}
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// Read Table of Section Sizes
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for (unsigned i = 0; i != Header.NumUnits; ++i) {
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auto *Contrib = Contribs[i];
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for (unsigned i = 0; i != Header.NumColumns; ++i) {
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Contrib[i].Size = IndexData.getU32(&Offset);
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}
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}
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return true;
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}
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StringRef DWARFUnitIndex::getColumnHeader(DwarfSection DS) {
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#define CASE(DS) \
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case DW_SECT_##DS: \
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return #DS;
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switch (DS) {
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CASE(INFO);
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CASE(TYPES);
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CASE(ABBREV);
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CASE(LINE);
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CASE(LOC);
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CASE(STR_OFFSETS);
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CASE(MACINFO);
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CASE(MACRO);
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}
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llvm_unreachable("unknown DwarfSection");
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}
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void DWARFUnitIndex::dump(raw_ostream &OS) const {
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Header.dump(OS);
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OS << "Index Signature ";
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for (unsigned i = 0; i != Header.NumColumns; ++i)
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OS << ' ' << left_justify(getColumnHeader(ColumnKinds[i]), 24);
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OS << "\n----- ------------------";
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for (unsigned i = 0; i != Header.NumColumns; ++i)
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OS << " ------------------------";
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OS << '\n';
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for (unsigned i = 0; i != Header.NumBuckets; ++i) {
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auto &Row = Rows[i];
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if (auto *Contribs = Row.Contributions.get()) {
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OS << format("%5u 0x%016" PRIx64 " ", i, Row.Signature);
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for (unsigned i = 0; i != Header.NumColumns; ++i) {
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auto &Contrib = Contribs[i];
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OS << format("[0x%08u, 0x%08u) ", Contrib.Offset,
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Contrib.Offset + Contrib.Size);
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}
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OS << '\n';
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}
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}
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}
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}
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