#define LLVM_DEBUGINFO_DICONTEXT_H
#include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringRef.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Object/RelocVisitor.h"
+#include "llvm/Support/Casting.h"
#include "llvm/Support/DataTypes.h"
+#include <string>
namespace llvm {
class raw_ostream;
/// DILineInfo - a format-neutral container for source line information.
-class DILineInfo {
- SmallString<16> FileName;
- SmallString<16> FunctionName;
+struct DILineInfo {
+ std::string FileName;
+ std::string FunctionName;
uint32_t Line;
uint32_t Column;
-public:
+
DILineInfo()
- : FileName("<invalid>"), FunctionName("<invalid>"),
- Line(0), Column(0) {}
- DILineInfo(const SmallString<16> &fileName,
- const SmallString<16> &functionName,
- uint32_t line, uint32_t column)
- : FileName(fileName), FunctionName(functionName),
- Line(line), Column(column) {}
-
- const char *getFileName() { return FileName.c_str(); }
- const char *getFunctionName() { return FunctionName.c_str(); }
- uint32_t getLine() const { return Line; }
- uint32_t getColumn() const { return Column; }
+ : FileName("<invalid>"), FunctionName("<invalid>"), Line(0), Column(0) {}
bool operator==(const DILineInfo &RHS) const {
return Line == RHS.Line && Column == RHS.Column &&
- FileName.equals(RHS.FileName) &&
- FunctionName.equals(RHS.FunctionName);
+ FileName == RHS.FileName && FunctionName == RHS.FunctionName;
}
bool operator!=(const DILineInfo &RHS) const {
return !(*this == RHS);
assert(Index < Frames.size());
return Frames[Index];
}
+ DILineInfo *getMutableFrame(unsigned Index) {
+ assert(Index < Frames.size());
+ return &Frames[Index];
+ }
uint32_t getNumberOfFrames() const {
return Frames.size();
}
}
};
+/// DIGlobal - container for description of a global variable.
+struct DIGlobal {
+ std::string Name;
+ uint64_t Start;
+ uint64_t Size;
+
+ DIGlobal() : Name("<invalid>"), Start(0), Size(0) {}
+};
+
+/// A DINameKind is passed to name search methods to specify a
+/// preference regarding the type of name resolution the caller wants.
+enum class DINameKind { None, ShortName, LinkageName };
+
/// DILineInfoSpecifier - controls which fields of DILineInfo container
/// should be filled with data.
-class DILineInfoSpecifier {
- const uint32_t Flags; // Or'ed flags that set the info we want to fetch.
-public:
- enum Specification {
- FileLineInfo = 1 << 0,
- AbsoluteFilePath = 1 << 1,
- FunctionName = 1 << 2
- };
- // Use file/line info by default.
- DILineInfoSpecifier(uint32_t flags = FileLineInfo) : Flags(flags) {}
- bool needs(Specification spec) const {
- return (Flags & spec) > 0;
- }
+struct DILineInfoSpecifier {
+ enum class FileLineInfoKind { None, Default, AbsoluteFilePath };
+ typedef DINameKind FunctionNameKind;
+
+ FileLineInfoKind FLIKind;
+ FunctionNameKind FNKind;
+
+ DILineInfoSpecifier(FileLineInfoKind FLIKind = FileLineInfoKind::Default,
+ FunctionNameKind FNKind = FunctionNameKind::None)
+ : FLIKind(FLIKind), FNKind(FNKind) {}
};
/// Selects which debug sections get dumped.
DIDT_Frames,
DIDT_Info,
DIDT_InfoDwo,
+ DIDT_Types,
+ DIDT_TypesDwo,
DIDT_Line,
+ DIDT_LineDwo,
DIDT_Loc,
+ DIDT_LocDwo,
+ DIDT_Macro,
DIDT_Ranges,
DIDT_Pubnames,
+ DIDT_Pubtypes,
+ DIDT_GnuPubnames,
+ DIDT_GnuPubtypes,
DIDT_Str,
DIDT_StrDwo,
- DIDT_StrOffsetsDwo
+ DIDT_StrOffsetsDwo,
+ DIDT_AppleNames,
+ DIDT_AppleTypes,
+ DIDT_AppleNamespaces,
+ DIDT_AppleObjC,
+ DIDT_CUIndex,
+ DIDT_TUIndex,
};
-// 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;
-
class DIContext {
public:
- virtual ~DIContext();
+ enum DIContextKind {
+ CK_DWARF,
+ CK_PDB
+ };
+ DIContextKind getKind() const { return Kind; }
- /// getDWARFContext - get a context for binary DWARF data.
- static DIContext *getDWARFContext(object::ObjectFile *);
+ DIContext(DIContextKind K) : Kind(K) {}
+ virtual ~DIContext() {}
virtual void dump(raw_ostream &OS, DIDumpType DumpType = DIDT_All) = 0;
uint64_t Size, DILineInfoSpecifier Specifier = DILineInfoSpecifier()) = 0;
virtual DIInliningInfo getInliningInfoForAddress(uint64_t Address,
DILineInfoSpecifier Specifier = DILineInfoSpecifier()) = 0;
+private:
+ const DIContextKind Kind;
+};
+
+/// An inferface for inquiring the load address of a loaded object file
+/// to be used by the DIContext implementations when applying relocations
+/// on the fly.
+class LoadedObjectInfo {
+protected:
+ LoadedObjectInfo(const LoadedObjectInfo &) = default;
+ LoadedObjectInfo() = default;
+
+public:
+ virtual ~LoadedObjectInfo() = default;
+
+ /// Obtain the Load Address of a section by SectionRef.
+ ///
+ /// Calculate the address of the given section.
+ /// The section need not be present in the local address space. The addresses
+ /// need to be consistent with the addresses used to query the DIContext and
+ /// the output of this function should be deterministic, i.e. repeated calls with
+ /// the same Sec should give the same address.
+ virtual uint64_t getSectionLoadAddress(const object::SectionRef &Sec) const = 0;
+
+ /// If conveniently available, return the content of the given Section.
+ ///
+ /// When the section is available in the local address space, in relocated (loaded)
+ /// form, e.g. because it was relocated by a JIT for execution, this function
+ /// should provide the contents of said section in `Data`. If the loaded section
+ /// is not available, or the cost of retrieving it would be prohibitive, this
+ /// function should return false. In that case, relocations will be read from the
+ /// local (unrelocated) object file and applied on the fly. Note that this method
+ /// is used purely for optimzation purposes in the common case of JITting in the
+ /// local address space, so returning false should always be correct.
+ virtual bool getLoadedSectionContents(const object::SectionRef &Sec,
+ StringRef &Data) const {
+ return false;
+ }
+
+ /// Obtain a copy of this LoadedObjectInfo.
+ ///
+ /// The caller is responsible for deallocation once the copy is no longer required.
+ virtual std::unique_ptr<LoadedObjectInfo> clone() const = 0;
};
}
projects / oota-llvm.git / blobdiff