aboutsummaryrefslogtreecommitdiffstats
path: root/lib/DebugInfo/DWARFAcceleratorTable.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/DebugInfo/DWARFAcceleratorTable.cpp')
-rw-r--r--lib/DebugInfo/DWARFAcceleratorTable.cpp133
1 files changed, 0 insertions, 133 deletions
diff --git a/lib/DebugInfo/DWARFAcceleratorTable.cpp b/lib/DebugInfo/DWARFAcceleratorTable.cpp
deleted file mode 100644
index 703274d..0000000
--- a/lib/DebugInfo/DWARFAcceleratorTable.cpp
+++ /dev/null
@@ -1,133 +0,0 @@
-//===--- DWARFAcceleratorTable.cpp ----------------------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "DWARFAcceleratorTable.h"
-
-#include "llvm/Support/Dwarf.h"
-#include "llvm/Support/Format.h"
-#include "llvm/Support/raw_ostream.h"
-
-namespace llvm {
-
-bool DWARFAcceleratorTable::extract() {
- uint32_t Offset = 0;
-
- // Check that we can at least read the header.
- if (!AccelSection.isValidOffset(offsetof(Header, HeaderDataLength)+4))
- return false;
-
- Hdr.Magic = AccelSection.getU32(&Offset);
- Hdr.Version = AccelSection.getU16(&Offset);
- Hdr.HashFunction = AccelSection.getU16(&Offset);
- Hdr.NumBuckets = AccelSection.getU32(&Offset);
- Hdr.NumHashes = AccelSection.getU32(&Offset);
- Hdr.HeaderDataLength = AccelSection.getU32(&Offset);
-
- // Check that we can read all the hashes and offsets from the
- // section (see SourceLevelDebugging.rst for the structure of the index).
- if (!AccelSection.isValidOffset(sizeof(Hdr) + Hdr.HeaderDataLength +
- Hdr.NumBuckets*4 + Hdr.NumHashes*8))
- return false;
-
- HdrData.DIEOffsetBase = AccelSection.getU32(&Offset);
- uint32_t NumAtoms = AccelSection.getU32(&Offset);
-
- for (unsigned i = 0; i < NumAtoms; ++i) {
- uint16_t AtomType = AccelSection.getU16(&Offset);
- uint16_t AtomForm = AccelSection.getU16(&Offset);
- HdrData.Atoms.push_back(std::make_pair(AtomType, AtomForm));
- }
-
- return true;
-}
-
-void DWARFAcceleratorTable::dump(raw_ostream &OS) const {
- // Dump the header.
- OS << "Magic = " << format("0x%08x", Hdr.Magic) << '\n'
- << "Version = " << format("0x%04x", Hdr.Version) << '\n'
- << "Hash function = " << format("0x%08x", Hdr.HashFunction) << '\n'
- << "Bucket count = " << Hdr.NumBuckets << '\n'
- << "Hashes count = " << Hdr.NumHashes << '\n'
- << "HeaderData length = " << Hdr.HeaderDataLength << '\n'
- << "DIE offset base = " << HdrData.DIEOffsetBase << '\n'
- << "Number of atoms = " << HdrData.Atoms.size() << '\n';
-
- unsigned i = 0;
- SmallVector<DWARFFormValue, 3> AtomForms;
- for (const auto &Atom: HdrData.Atoms) {
- OS << format("Atom[%d] Type: ", i++);
- if (const char *TypeString = dwarf::AtomTypeString(Atom.first))
- OS << TypeString;
- else
- OS << format("DW_ATOM_Unknown_0x%x", Atom.first);
- OS << " Form: ";
- if (const char *FormString = dwarf::FormEncodingString(Atom.second))
- OS << FormString;
- else
- OS << format("DW_FORM_Unknown_0x%x", Atom.second);
- OS << '\n';
- AtomForms.push_back(DWARFFormValue(Atom.second));
- }
-
- // Now go through the actual tables and dump them.
- uint32_t Offset = sizeof(Hdr) + Hdr.HeaderDataLength;
- unsigned HashesBase = Offset + Hdr.NumBuckets * 4;
- unsigned OffsetsBase = HashesBase + Hdr.NumHashes * 4;
-
- for (unsigned Bucket = 0; Bucket < Hdr.NumBuckets; ++Bucket) {
- unsigned Index = AccelSection.getU32(&Offset);
-
- OS << format("Bucket[%d]\n", Bucket);
- if (Index == UINT32_MAX) {
- OS << " EMPTY\n";
- continue;
- }
-
- for (unsigned HashIdx = Index; HashIdx < Hdr.NumHashes; ++HashIdx) {
- unsigned HashOffset = HashesBase + HashIdx*4;
- unsigned OffsetsOffset = OffsetsBase + HashIdx*4;
- uint32_t Hash = AccelSection.getU32(&HashOffset);
-
- if (Hash % Hdr.NumBuckets != Bucket)
- break;
-
- unsigned DataOffset = AccelSection.getU32(&OffsetsOffset);
- OS << format(" Hash = 0x%08x Offset = 0x%08x\n", Hash, DataOffset);
- if (!AccelSection.isValidOffset(DataOffset)) {
- OS << " Invalid section offset\n";
- continue;
- }
- while (AccelSection.isValidOffsetForDataOfSize(DataOffset, 4)) {
- unsigned StringOffset = AccelSection.getU32(&DataOffset);
- RelocAddrMap::const_iterator Reloc = Relocs.find(DataOffset-4);
- if (Reloc != Relocs.end())
- StringOffset += Reloc->second.second;
- if (!StringOffset)
- break;
- OS << format(" Name: %08x \"%s\"\n", StringOffset,
- StringSection.getCStr(&StringOffset));
- unsigned NumData = AccelSection.getU32(&DataOffset);
- for (unsigned Data = 0; Data < NumData; ++Data) {
- OS << format(" Data[%d] => ", Data);
- unsigned i = 0;
- for (auto &Atom : AtomForms) {
- OS << format("{Atom[%d]: ", i++);
- if (Atom.extractValue(AccelSection, &DataOffset, nullptr))
- Atom.dump(OS, nullptr);
- else
- OS << "Error extracting the value";
- OS << "} ";
- }
- OS << '\n';
- }
- }
- }
- }
-}
-}