forked from OSchip/llvm-project
dwarfdump: Add support for dumping the table contents of DWP indexes
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
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@ -26,10 +26,7 @@ bool DWARFUnitIndex::Header::parse(DataExtractor IndexData,
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}
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void DWARFUnitIndex::Header::dump(raw_ostream &OS) const {
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OS << "Index header:\n" << format(" version: %u\n", Version)
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<< format(" columns: %u\n", NumColumns)
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<< format(" units: %u\n", NumUnits)
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<< format(" buckets: %u\n", NumBuckets);
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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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@ -42,6 +39,45 @@ bool DWARFUnitIndex::parse(DataExtractor IndexData) {
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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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@ -64,6 +100,24 @@ StringRef DWARFUnitIndex::getColumnHeader(DwarfSection DS) {
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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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@ -9,17 +9,17 @@ RUN: llvm-dwarfdump %p/Inputs/dwarfdump-dwp.x86_64.o | FileCheck %s
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; bar b;
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; CHECK: .debug_cu_index contents:
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; CHECK-NEXT: Index header:
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; CHECK-NEXT: version: 2
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; CHECK-NEXT: columns: 4
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; CHECK-NEXT: units: 2
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; CHECK-NEXT: buckets: 16
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; CHECK-NEXT: version = 2 slots = 16
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; CHECK: Index Signature INFO ABBREV LINE STR_OFFSETS
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; CHECK-NEXT: ----- ------------------ ------------------------ ------------------------ ------------------------ ------------------------
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; CHECK-NEXT: 8 0x03c30756e2d45008 [0x00000000, 0x00000045) [0x00000000, 0x00000067) [0x00000000, 0x00000026) [0x00000000, 0x00000016)
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; CHECK-NEXT: 12 0x9aeb3a61ed48510c [0x00000045, 0x00000090) [0x00000067, 0x00000134) [0x00000026, 0x00000052) [0x00000016, 0x00000032)
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; CHECK: .debug_tu_index contents:
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; CHECK-NEXT: Index header:
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; CHECK-NEXT: version: 2
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; CHECK-NEXT: columns: 4
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; CHECK-NEXT: units: 2
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; CHECK-NEXT: buckets: 16
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; CHECK-NEXT: version = 2 slots = 16
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; CHECK: Index Signature TYPES ABBREV LINE STR_OFFSETS
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; CHECK-NEXT: ----- ------------------ ------------------------ ------------------------ ------------------------ ------------------------
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; CHECK-NEXT: 8 0x1d02f3be30cc5688 [0x00000036, 0x00000072) [0x00000067, 0x00000134) [0x00000026, 0x00000052) [0x00000016, 0x00000032)
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; CHECK-NEXT: 12 0x3875c0e21cda63fc [0x00000000, 0x00000036) [0x00000000, 0x00000067) [0x00000000, 0x00000026) [0x00000000, 0x00000016)
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; TODO: use the index section offset info to correctly dump debug_info
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