Revert "Improve DWARFDebugFrame::parse to also handle __eh_frame."

[oota-llvm.git] / include / llvm / DebugInfo / DWARF / DWARFContext.h

diff --git a/include/llvm/DebugInfo/DWARF/DWARFContext.h b/include/llvm/DebugInfo/DWARF/DWARFContext.h
index 677242b1216779d7b39fdbdac5e78de7bb4e1ff8..ce253a05bf89f4b7c22947e0eb481c032ace59e5 100644 (file)
--- a/include/llvm/DebugInfo/DWARF/DWARFContext.h
+++ b/include/llvm/DebugInfo/DWARF/DWARFContext.h
@@ -12,12 +12,13 @@
 
 #include "llvm/ADT/MapVector.h"
 #include "llvm/ADT/SmallVector.h"
-#include "llvm/DebugInfo/DWARF/DIContext.h"
+#include "llvm/DebugInfo/DIContext.h"
 #include "llvm/DebugInfo/DWARF/DWARFCompileUnit.h"
 #include "llvm/DebugInfo/DWARF/DWARFDebugAranges.h"
 #include "llvm/DebugInfo/DWARF/DWARFDebugFrame.h"
 #include "llvm/DebugInfo/DWARF/DWARFDebugLine.h"
 #include "llvm/DebugInfo/DWARF/DWARFDebugLoc.h"
+#include "llvm/DebugInfo/DWARF/DWARFDebugMacro.h"
 #include "llvm/DebugInfo/DWARF/DWARFDebugRangeList.h"
 #include "llvm/DebugInfo/DWARF/DWARFSection.h"
 #include "llvm/DebugInfo/DWARF/DWARFTypeUnit.h"
@@ -25,6 +26,13 @@
 
 namespace llvm {
 
+// In place of applying the relocations to the data we've read from disk we use
+// a separate mapping table to the side and checking that at locations in the
+// dwarf where we expect relocated values. This adds a bit of complexity to the
+// dwarf parsing/extraction at the benefit of not allocating memory for the
+// entire size of the debug info sections.
+typedef DenseMap<uint64_t, std::pair<uint8_t, int64_t> > RelocAddrMap;
+
 /// DWARFContext
 /// This data structure is the top level entity that deals with dwarf debug
 /// information parsing. The actual data is supplied through pure virtual
@@ -33,11 +41,14 @@ class DWARFContext : public DIContext {
 
   DWARFUnitSection<DWARFCompileUnit> CUs;
   std::vector<DWARFUnitSection<DWARFTypeUnit>> TUs;
+  std::unique_ptr<DWARFUnitIndex> CUIndex;
+  std::unique_ptr<DWARFUnitIndex> TUIndex;
   std::unique_ptr<DWARFDebugAbbrev> Abbrev;
   std::unique_ptr<DWARFDebugLoc> Loc;
   std::unique_ptr<DWARFDebugAranges> Aranges;
   std::unique_ptr<DWARFDebugLine> Line;
   std::unique_ptr<DWARFDebugFrame> DebugFrame;
+  std::unique_ptr<DWARFDebugMacro> Macro;
 
   DWARFUnitSection<DWARFCompileUnit> DWOCUs;
   std::vector<DWARFUnitSection<DWARFTypeUnit>> DWOTUs;
@@ -136,6 +147,9 @@ public:
     return DWOCUs[index].get();
   }
 
+  const DWARFUnitIndex &getCUIndex();
+  const DWARFUnitIndex &getTUIndex();
+
   /// Get a pointer to the parsed DebugAbbrev object.
   const DWARFDebugAbbrev *getDebugAbbrev();
 
@@ -154,6 +168,9 @@ public:
   /// Get a pointer to the parsed frame information object.
   const DWARFDebugFrame *getDebugFrame();
 
+  /// Get a pointer to the parsed DebugMacro object.
+  const DWARFDebugMacro *getDebugMacro();
+
   /// Get a pointer to a parsed line table corresponding to a compile unit.
   const DWARFDebugLine::LineTable *getLineTableForUnit(DWARFUnit *cu);
 
@@ -177,6 +194,7 @@ public:
   virtual const DWARFSection &getLineSection() = 0;
   virtual StringRef getStringSection() = 0;
   virtual StringRef getRangeSection() = 0;
+  virtual StringRef getMacinfoSection() = 0;
   virtual StringRef getPubNamesSection() = 0;
   virtual StringRef getPubTypesSection() = 0;
   virtual StringRef getGnuPubNamesSection() = 0;
@@ -196,6 +214,8 @@ public:
   virtual const DWARFSection& getAppleTypesSection() = 0;
   virtual const DWARFSection& getAppleNamespacesSection() = 0;
   virtual const DWARFSection& getAppleObjCSection() = 0;
+  virtual StringRef getCUIndexSection() = 0;
+  virtual StringRef getTUIndexSection() = 0;
 
   static bool isSupportedVersion(unsigned version) {
     return version == 2 || version == 3 || version == 4;
@@ -225,6 +245,7 @@ class DWARFContextInMemory : public DWARFContext {
   DWARFSection LineSection;
   StringRef StringSection;
   StringRef RangeSection;
+  StringRef MacinfoSection;
   StringRef PubNamesSection;
   StringRef PubTypesSection;
   StringRef GnuPubNamesSection;
@@ -244,11 +265,14 @@ class DWARFContextInMemory : public DWARFContext {
   DWARFSection AppleTypesSection;
   DWARFSection AppleNamespacesSection;
   DWARFSection AppleObjCSection;
+  StringRef CUIndexSection;
+  StringRef TUIndexSection;
 
   SmallVector<SmallString<32>, 4> UncompressedSections;
 
 public:
-  DWARFContextInMemory(const object::ObjectFile &Obj);
+  DWARFContextInMemory(const object::ObjectFile &Obj,
+    const LoadedObjectInfo *L = nullptr);
   bool isLittleEndian() const override { return IsLittleEndian; }
   uint8_t getAddressSize() const override { return AddressSize; }
   const DWARFSection &getInfoSection() override { return InfoSection; }
@@ -260,6 +284,7 @@ public:
   const DWARFSection &getLineSection() override { return LineSection; }
   StringRef getStringSection() override { return StringSection; }
   StringRef getRangeSection() override { return RangeSection; }
+  StringRef getMacinfoSection() override { return MacinfoSection; }
   StringRef getPubNamesSection() override { return PubNamesSection; }
   StringRef getPubTypesSection() override { return PubTypesSection; }
   StringRef getGnuPubNamesSection() override { return GnuPubNamesSection; }
@@ -285,6 +310,8 @@ public:
   StringRef getAddrSection() override {
     return AddrSection;
   }
+  StringRef getCUIndexSection() override { return CUIndexSection; }
+  StringRef getTUIndexSection() override { return TUIndexSection; }
 };
 
 }