1 files changed, 60 insertions, 9 deletions
diff --git a/contrib/llvm/lib/DebugInfo/DWARF/DWARFAcceleratorTable.cpp b/contrib/llvm/lib/DebugInfo/DWARF/DWARFAcceleratorTable.cpp
index 7111ad3..9ae7c9a 100644
--- a/contrib/llvm/lib/DebugInfo/DWARF/DWARFAcceleratorTable.cpp
+++ b/contrib/llvm/lib/DebugInfo/DWARF/DWARFAcceleratorTable.cpp
@@ -1,4 +1,4 @@
-//===--- DWARFAcceleratorTable.cpp ----------------------------------------===//
+//===- DWARFAcceleratorTable.cpp ------------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -8,11 +8,20 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/DebugInfo/DWARF/DWARFAcceleratorTable.h"
-#include "llvm/Support/Dwarf.h"
+
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/BinaryFormat/Dwarf.h"
+#include "llvm/DebugInfo/DWARF/DWARFContext.h"
+#include "llvm/DebugInfo/DWARF/DWARFFormValue.h"
+#include "llvm/DebugInfo/DWARF/DWARFRelocMap.h"
+#include "llvm/Support/Compiler.h"
 #include "llvm/Support/Format.h"
 #include "llvm/Support/raw_ostream.h"
+#include <cstddef>
+#include <cstdint>
+#include <utility>
 
-namespace llvm {
+using namespace llvm;
 
 bool DWARFAcceleratorTable::extract() {
   uint32_t Offset = 0;
@@ -46,7 +55,53 @@ bool DWARFAcceleratorTable::extract() {
   return true;
 }
 
-void DWARFAcceleratorTable::dump(raw_ostream &OS) const {
+uint32_t DWARFAcceleratorTable::getNumBuckets() { return Hdr.NumBuckets; }
+uint32_t DWARFAcceleratorTable::getNumHashes() { return Hdr.NumHashes; }
+uint32_t DWARFAcceleratorTable::getSizeHdr() { return sizeof(Hdr); }
+uint32_t DWARFAcceleratorTable::getHeaderDataLength() {
+  return Hdr.HeaderDataLength;
+}
+
+ArrayRef<std::pair<DWARFAcceleratorTable::HeaderData::AtomType,
+                   DWARFAcceleratorTable::HeaderData::Form>>
+DWARFAcceleratorTable::getAtomsDesc() {
+  return HdrData.Atoms;
+}
+
+bool DWARFAcceleratorTable::validateForms() {
+  for (auto Atom : getAtomsDesc()) {
+    DWARFFormValue FormValue(Atom.second);
+    switch (Atom.first) {
+    case dwarf::DW_ATOM_die_offset:
+      if ((!FormValue.isFormClass(DWARFFormValue::FC_Constant) &&
+           !FormValue.isFormClass(DWARFFormValue::FC_Flag)) ||
+          FormValue.getForm() == dwarf::DW_FORM_sdata)
+        return false;
+    default:
+      break;
+    }
+  }
+  return true;
+}
+
+uint32_t DWARFAcceleratorTable::readAtoms(uint32_t &HashDataOffset) {
+  uint32_t DieOffset = dwarf::DW_INVALID_OFFSET;
+
+  for (auto Atom : getAtomsDesc()) {
+    DWARFFormValue FormValue(Atom.second);
+    FormValue.extractValue(AccelSection, &HashDataOffset, NULL);
+    switch (Atom.first) {
+    case dwarf::DW_ATOM_die_offset:
+      DieOffset = *FormValue.getAsUnsignedConstant();
+      break;
+    default:
+      break;
+    }
+  }
+  return DieOffset;
+}
+
+LLVM_DUMP_METHOD 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'
@@ -105,10 +160,7 @@ void DWARFAcceleratorTable::dump(raw_ostream &OS) const {
         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;
+        unsigned StringOffset = AccelSection.getRelocatedValue(4, &DataOffset);
         if (!StringOffset)
           break;
         OS << format("    Name: %08x \"%s\"\n", StringOffset,
@@ -131,4 +183,3 @@ void DWARFAcceleratorTable::dump(raw_ostream &OS) const {
     }
   }
 }
-}