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//===-- LLVMSymbolize.h ----------------------------------------- C++ -----===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Header for LLVM symbolization library.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SYMBOLIZE_H
#define LLVM_SYMBOLIZE_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/DebugInfo/DIContext.h"
#include "llvm/Object/MachOUniversal.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/MemoryBuffer.h"
#include <map>
#include <memory>
#include <string>
namespace llvm {
typedef DILineInfoSpecifier::FunctionNameKind FunctionNameKind;
using namespace object;
namespace symbolize {
class ModuleInfo;
class LLVMSymbolizer {
public:
struct Options {
bool UseSymbolTable : 1;
FunctionNameKind PrintFunctions;
bool PrintInlining : 1;
bool Demangle : 1;
std::string DefaultArch;
Options(bool UseSymbolTable = true,
FunctionNameKind PrintFunctions = FunctionNameKind::LinkageName,
bool PrintInlining = true, bool Demangle = true,
std::string DefaultArch = "")
: UseSymbolTable(UseSymbolTable), PrintFunctions(PrintFunctions),
PrintInlining(PrintInlining), Demangle(Demangle),
DefaultArch(DefaultArch) {}
};
LLVMSymbolizer(const Options &Opts = Options()) : Opts(Opts) {}
~LLVMSymbolizer() {
flush();
}
// Returns the result of symbolization for module name/offset as
// a string (possibly containing newlines).
std::string
symbolizeCode(const std::string &ModuleName, uint64_t ModuleOffset);
std::string
symbolizeData(const std::string &ModuleName, uint64_t ModuleOffset);
void flush();
static std::string DemangleName(const std::string &Name);
private:
typedef std::pair<Binary*, Binary*> BinaryPair;
ModuleInfo *getOrCreateModuleInfo(const std::string &ModuleName);
/// \brief Returns pair of pointers to binary and debug binary.
BinaryPair getOrCreateBinary(const std::string &Path);
/// \brief Returns a parsed object file for a given architecture in a
/// universal binary (or the binary itself if it is an object file).
ObjectFile *getObjectFileFromBinary(Binary *Bin, const std::string &ArchName);
std::string printDILineInfo(DILineInfo LineInfo) const;
// Owns all the parsed binaries and object files.
SmallVector<std::unique_ptr<Binary>, 4> ParsedBinariesAndObjects;
// Owns module info objects.
typedef std::map<std::string, ModuleInfo *> ModuleMapTy;
ModuleMapTy Modules;
typedef std::map<std::string, BinaryPair> BinaryMapTy;
BinaryMapTy BinaryForPath;
typedef std::map<std::pair<MachOUniversalBinary *, std::string>, ObjectFile *>
ObjectFileForArchMapTy;
ObjectFileForArchMapTy ObjectFileForArch;
Options Opts;
static const char kBadString[];
};
class ModuleInfo {
public:
ModuleInfo(ObjectFile *Obj, DIContext *DICtx);
DILineInfo symbolizeCode(uint64_t ModuleOffset,
const LLVMSymbolizer::Options &Opts) const;
DIInliningInfo symbolizeInlinedCode(
uint64_t ModuleOffset, const LLVMSymbolizer::Options &Opts) const;
bool symbolizeData(uint64_t ModuleOffset, std::string &Name, uint64_t &Start,
uint64_t &Size) const;
private:
bool getNameFromSymbolTable(SymbolRef::Type Type, uint64_t Address,
std::string &Name, uint64_t &Addr,
uint64_t &Size) const;
void addSymbol(const SymbolRef &Symbol);
ObjectFile *Module;
std::unique_ptr<DIContext> DebugInfoContext;
struct SymbolDesc {
uint64_t Addr;
// If size is 0, assume that symbol occupies the whole memory range up to
// the following symbol.
uint64_t Size;
friend bool operator<(const SymbolDesc &s1, const SymbolDesc &s2) {
return s1.Addr < s2.Addr;
}
};
typedef std::map<SymbolDesc, StringRef> SymbolMapTy;
SymbolMapTy Functions;
SymbolMapTy Objects;
};
} // namespace symbolize
} // namespace llvm
#endif // LLVM_SYMBOLIZE_H
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