//
//===----------------------------------------------------------------------===/
-#ifndef LLVM_DEBUGINFO_DWARFCONTEXT_H
-#define LLVM_DEBUGINFO_DWARFCONTEXT_H
+#ifndef LLVM_LIB_DEBUGINFO_DWARFCONTEXT_H
+#define LLVM_LIB_DEBUGINFO_DWARFCONTEXT_H
#include "DWARFCompileUnit.h"
#include "DWARFDebugAranges.h"
-#include "llvm/DebugInfo/DIContext.h"
-#include "llvm/ADT/OwningPtr.h"
+#include "DWARFDebugFrame.h"
+#include "DWARFDebugLine.h"
+#include "DWARFDebugLoc.h"
+#include "DWARFDebugRangeList.h"
+#include "DWARFTypeUnit.h"
+#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/SmallVector.h"
+#include "llvm/DebugInfo/DIContext.h"
namespace llvm {
/// information parsing. The actual data is supplied through pure virtual
/// methods that a concrete implementation provides.
class DWARFContext : public DIContext {
- bool IsLittleEndian;
+ typedef SmallVector<std::unique_ptr<DWARFCompileUnit>, 1> CUVector;
+ typedef SmallVector<std::unique_ptr<DWARFTypeUnit>, 1> TUVector;
- SmallVector<DWARFCompileUnit, 1> CUs;
- OwningPtr<DWARFDebugAbbrev> Abbrev;
- OwningPtr<DWARFDebugAranges> Aranges;
+ CUVector CUs;
+ TUVector TUs;
+ 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;
- DWARFContext(DWARFContext &); // = delete
- DWARFContext &operator=(DWARFContext &); // = delete
+ CUVector DWOCUs;
+ TUVector DWOTUs;
+ std::unique_ptr<DWARFDebugAbbrev> AbbrevDWO;
+ std::unique_ptr<DWARFDebugLocDWO> LocDWO;
- /// Read compile units from the debug_info section and store them in CUs.
+ DWARFContext(DWARFContext &) LLVM_DELETED_FUNCTION;
+ DWARFContext &operator=(DWARFContext &) LLVM_DELETED_FUNCTION;
+
+ /// Read compile units from the debug_info section (if necessary)
+ /// and store them in CUs.
void parseCompileUnits();
-protected:
- DWARFContext(bool isLittleEndian) : IsLittleEndian(isLittleEndian) {}
+
+ /// Read type units from the debug_types sections (if necessary)
+ /// and store them in TUs.
+ void parseTypeUnits();
+
+ /// Read compile units from the debug_info.dwo section (if necessary)
+ /// and store them in DWOCUs.
+ void parseDWOCompileUnits();
+
+ /// Read type units from the debug_types.dwo section (if necessary)
+ /// and store them in DWOTUs.
+ void parseDWOTypeUnits();
+
public:
- virtual void dump(raw_ostream &OS);
+ struct Section {
+ StringRef Data;
+ RelocAddrMap Relocs;
+ };
+
+ DWARFContext() : DIContext(CK_DWARF) {}
+
+ static bool classof(const DIContext *DICtx) {
+ return DICtx->getKind() == CK_DWARF;
+ }
+
+ void dump(raw_ostream &OS, DIDumpType DumpType = DIDT_All) override;
+
+ typedef iterator_range<CUVector::iterator> cu_iterator_range;
+ typedef iterator_range<TUVector::iterator> tu_iterator_range;
+
+ /// Get compile units in this context.
+ cu_iterator_range compile_units() {
+ parseCompileUnits();
+ return cu_iterator_range(CUs.begin(), CUs.end());
+ }
+
+ /// Get type units in this context.
+ tu_iterator_range type_units() {
+ parseTypeUnits();
+ return tu_iterator_range(TUs.begin(), TUs.end());
+ }
+
+ /// Get compile units in the DWO context.
+ cu_iterator_range dwo_compile_units() {
+ parseDWOCompileUnits();
+ return cu_iterator_range(DWOCUs.begin(), DWOCUs.end());
+ }
+
+ /// Get type units in the DWO context.
+ tu_iterator_range dwo_type_units() {
+ parseDWOTypeUnits();
+ return tu_iterator_range(DWOTUs.begin(), DWOTUs.end());
+ }
+
/// Get the number of compile units in this context.
unsigned getNumCompileUnits() {
- if (CUs.empty())
- parseCompileUnits();
+ parseCompileUnits();
return CUs.size();
}
+
+ /// Get the number of compile units in this context.
+ unsigned getNumTypeUnits() {
+ parseTypeUnits();
+ return TUs.size();
+ }
+
+ /// Get the number of compile units in the DWO context.
+ unsigned getNumDWOCompileUnits() {
+ parseDWOCompileUnits();
+ return DWOCUs.size();
+ }
+
+ /// Get the number of compile units in the DWO context.
+ unsigned getNumDWOTypeUnits() {
+ parseDWOTypeUnits();
+ return DWOTUs.size();
+ }
+
/// Get the compile unit at the specified index for this compile unit.
DWARFCompileUnit *getCompileUnitAtIndex(unsigned index) {
- if (CUs.empty())
- parseCompileUnits();
- return &CUs[index];
+ parseCompileUnits();
+ return CUs[index].get();
+ }
+
+ /// Get the compile unit at the specified index for the DWO compile units.
+ DWARFCompileUnit *getDWOCompileUnitAtIndex(unsigned index) {
+ parseDWOCompileUnits();
+ return DWOCUs[index].get();
}
/// Get a pointer to the parsed DebugAbbrev object.
const DWARFDebugAbbrev *getDebugAbbrev();
+ /// Get a pointer to the parsed DebugLoc object.
+ const DWARFDebugLoc *getDebugLoc();
+
+ /// Get a pointer to the parsed dwo abbreviations object.
+ const DWARFDebugAbbrev *getDebugAbbrevDWO();
+
+ /// Get a pointer to the parsed DebugLoc object.
+ const DWARFDebugLocDWO *getDebugLocDWO();
+
/// Get a pointer to the parsed DebugAranges object.
const DWARFDebugAranges *getDebugAranges();
- bool isLittleEndian() const { return IsLittleEndian; }
+ /// Get a pointer to the parsed frame information object.
+ const DWARFDebugFrame *getDebugFrame();
+
+ /// Get a pointer to a parsed line table corresponding to a compile unit.
+ const DWARFDebugLine::LineTable *
+ getLineTableForCompileUnit(DWARFCompileUnit *cu);
- virtual StringRef getInfoSection() = 0;
+ DILineInfo getLineInfoForAddress(uint64_t Address,
+ DILineInfoSpecifier Specifier = DILineInfoSpecifier()) override;
+ DILineInfoTable getLineInfoForAddressRange(uint64_t Address, uint64_t Size,
+ DILineInfoSpecifier Specifier = DILineInfoSpecifier()) override;
+ DIInliningInfo getInliningInfoForAddress(uint64_t Address,
+ DILineInfoSpecifier Specifier = DILineInfoSpecifier()) override;
+
+ virtual bool isLittleEndian() const = 0;
+ virtual uint8_t getAddressSize() const = 0;
+ virtual const Section &getInfoSection() = 0;
+ typedef MapVector<object::SectionRef, Section,
+ std::map<object::SectionRef, unsigned> > TypeSectionMap;
+ virtual const TypeSectionMap &getTypesSections() = 0;
virtual StringRef getAbbrevSection() = 0;
+ virtual const Section &getLocSection() = 0;
+ virtual const Section &getLocDWOSection() = 0;
virtual StringRef getARangeSection() = 0;
- virtual StringRef getLineSection() = 0;
+ virtual StringRef getDebugFrameSection() = 0;
+ virtual const Section &getLineSection() = 0;
+ virtual const Section &getLineDWOSection() = 0;
virtual StringRef getStringSection() = 0;
+ virtual StringRef getRangeSection() = 0;
+ virtual StringRef getPubNamesSection() = 0;
+ virtual StringRef getPubTypesSection() = 0;
+ virtual StringRef getGnuPubNamesSection() = 0;
+ virtual StringRef getGnuPubTypesSection() = 0;
+
+ // Sections for DWARF5 split dwarf proposal.
+ virtual const Section &getInfoDWOSection() = 0;
+ virtual const TypeSectionMap &getTypesDWOSections() = 0;
+ virtual StringRef getAbbrevDWOSection() = 0;
+ virtual StringRef getStringDWOSection() = 0;
+ virtual StringRef getStringOffsetDWOSection() = 0;
+ virtual StringRef getRangeDWOSection() = 0;
+ virtual StringRef getAddrSection() = 0;
static bool isSupportedVersion(unsigned version) {
- return version == 2 || version == 3;
+ return version == 2 || version == 3 || version == 4;
}
-};
+private:
+ /// Return the compile unit that includes an offset (relative to .debug_info).
+ DWARFCompileUnit *getCompileUnitForOffset(uint32_t Offset);
+ /// Return the compile unit which contains instruction with provided
+ /// address.
+ DWARFCompileUnit *getCompileUnitForAddress(uint64_t Address);
+};
/// DWARFContextInMemory is the simplest possible implementation of a
/// DWARFContext. It assumes all content is available in memory and stores
/// pointers to it.
class DWARFContextInMemory : public DWARFContext {
- StringRef InfoSection;
+ virtual void anchor();
+ bool IsLittleEndian;
+ uint8_t AddressSize;
+ Section InfoSection;
+ TypeSectionMap TypesSections;
StringRef AbbrevSection;
+ Section LocSection;
+ Section LocDWOSection;
StringRef ARangeSection;
- StringRef LineSection;
+ StringRef DebugFrameSection;
+ Section LineSection;
+ Section LineDWOSection;
StringRef StringSection;
+ StringRef RangeSection;
+ StringRef PubNamesSection;
+ StringRef PubTypesSection;
+ StringRef GnuPubNamesSection;
+ StringRef GnuPubTypesSection;
+
+ // Sections for DWARF5 split dwarf proposal.
+ Section InfoDWOSection;
+ TypeSectionMap TypesDWOSections;
+ StringRef AbbrevDWOSection;
+ StringRef StringDWOSection;
+ StringRef StringOffsetDWOSection;
+ StringRef RangeDWOSection;
+ StringRef AddrSection;
+
+ SmallVector<SmallString<32>, 4> UncompressedSections;
+
public:
- DWARFContextInMemory(bool isLittleEndian,
- StringRef infoSection,
- StringRef abbrevSection,
- StringRef aRangeSection,
- StringRef lineSection,
- StringRef stringSection)
- : DWARFContext(isLittleEndian),
- InfoSection(infoSection),
- AbbrevSection(abbrevSection),
- ARangeSection(aRangeSection),
- LineSection(lineSection),
- StringSection(stringSection)
- {}
-
- virtual StringRef getInfoSection() { return InfoSection; }
- virtual StringRef getAbbrevSection() { return AbbrevSection; }
- virtual StringRef getARangeSection() { return ARangeSection; }
- virtual StringRef getLineSection() { return LineSection; }
- virtual StringRef getStringSection() { return StringSection; }
+ DWARFContextInMemory(object::ObjectFile &);
+ bool isLittleEndian() const override { return IsLittleEndian; }
+ uint8_t getAddressSize() const override { return AddressSize; }
+ const Section &getInfoSection() override { return InfoSection; }
+ const TypeSectionMap &getTypesSections() override { return TypesSections; }
+ StringRef getAbbrevSection() override { return AbbrevSection; }
+ const Section &getLocSection() override { return LocSection; }
+ const Section &getLocDWOSection() override { return LocDWOSection; }
+ StringRef getARangeSection() override { return ARangeSection; }
+ StringRef getDebugFrameSection() override { return DebugFrameSection; }
+ const Section &getLineSection() override { return LineSection; }
+ const Section &getLineDWOSection() override { return LineDWOSection; }
+ StringRef getStringSection() override { return StringSection; }
+ StringRef getRangeSection() override { return RangeSection; }
+ StringRef getPubNamesSection() override { return PubNamesSection; }
+ StringRef getPubTypesSection() override { return PubTypesSection; }
+ StringRef getGnuPubNamesSection() override { return GnuPubNamesSection; }
+ StringRef getGnuPubTypesSection() override { return GnuPubTypesSection; }
+
+ // Sections for DWARF5 split dwarf proposal.
+ const Section &getInfoDWOSection() override { return InfoDWOSection; }
+ const TypeSectionMap &getTypesDWOSections() override {
+ return TypesDWOSections;
+ }
+ StringRef getAbbrevDWOSection() override { return AbbrevDWOSection; }
+ StringRef getStringDWOSection() override { return StringDWOSection; }
+ StringRef getStringOffsetDWOSection() override {
+ return StringOffsetDWOSection;
+ }
+ StringRef getRangeDWOSection() override { return RangeDWOSection; }
+ StringRef getAddrSection() override {
+ return AddrSection;
+ }
};
}