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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_TOOLS_LLVM_SYMBOLIZER_LLVMSYMBOLIZE_H
#define LLVM_TOOLS_LLVM_SYMBOLIZER_LLVMSYMBOLIZE_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/DebugInfo/DWARF/DIContext.h"
#include "llvm/Object/MachOUniversal.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/DataExtractor.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;
std::vector<std::string> DsymHints;
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<ObjectFile*, ObjectFile*> ObjectPair;
ModuleInfo *getOrCreateModuleInfo(const std::string &ModuleName);
ObjectFile *lookUpDsymFile(const std::string &Path, const MachOObjectFile *ExeObj,
const std::string &ArchName);
/// \brief Returns pair of pointers to object and debug object.
ObjectPair getOrCreateObjects(const std::string &Path,
const std::string &ArchName);
/// \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;
SmallVector<std::unique_ptr<MemoryBuffer>, 4> MemoryBuffers;
void addOwningBinary(OwningBinary<Binary> OwningBin) {
std::unique_ptr<Binary> Bin;
std::unique_ptr<MemoryBuffer> MemBuf;
std::tie(Bin, MemBuf) = OwningBin.takeBinary();
ParsedBinariesAndObjects.push_back(std::move(Bin));
MemoryBuffers.push_back(std::move(MemBuf));
}
// Owns module info objects.
std::map<std::string, ModuleInfo *> Modules;
std::map<std::pair<MachOUniversalBinary *, std::string>, ObjectFile *>
ObjectFileForArch;
std::map<std::pair<std::string, std::string>, ObjectPair>
ObjectPairForPathArch;
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;
// For big-endian PowerPC64 ELF, OpdAddress is the address of the .opd
// (function descriptor) section and OpdExtractor refers to its contents.
void addSymbol(const SymbolRef &Symbol,
DataExtractor *OpdExtractor = nullptr,
uint64_t OpdAddress = 0);
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;
}
};
std::map<SymbolDesc, StringRef> Functions;
std::map<SymbolDesc, StringRef> Objects;
};
} // namespace symbolize
} // namespace llvm
#endif
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