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//===-- Symbolize.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_DEBUGINFO_SYMBOLIZE_SYMBOLIZE_H
#define LLVM_DEBUGINFO_SYMBOLIZE_SYMBOLIZE_H
#include "llvm/DebugInfo/Symbolize/SymbolizableModule.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/ErrorOr.h"
#include <map>
#include <memory>
#include <string>
#include <utility>
namespace llvm {
namespace symbolize {
using namespace object;
using FunctionNameKind = DILineInfoSpecifier::FunctionNameKind;
class LLVMSymbolizer {
public:
struct Options {
FunctionNameKind PrintFunctions;
bool UseSymbolTable : 1;
bool Demangle : 1;
bool RelativeAddresses : 1;
std::string DefaultArch;
std::vector<std::string> DsymHints;
Options(FunctionNameKind PrintFunctions = FunctionNameKind::LinkageName,
bool UseSymbolTable = true, bool Demangle = true,
bool RelativeAddresses = false, std::string DefaultArch = "")
: PrintFunctions(PrintFunctions), UseSymbolTable(UseSymbolTable),
Demangle(Demangle), RelativeAddresses(RelativeAddresses),
DefaultArch(std::move(DefaultArch)) {}
};
LLVMSymbolizer(const Options &Opts = Options()) : Opts(Opts) {}
~LLVMSymbolizer() {
flush();
}
Expected<DILineInfo> symbolizeCode(const std::string &ModuleName,
uint64_t ModuleOffset);
Expected<DIInliningInfo> symbolizeInlinedCode(const std::string &ModuleName,
uint64_t ModuleOffset);
Expected<DIGlobal> symbolizeData(const std::string &ModuleName,
uint64_t ModuleOffset);
void flush();
static std::string DemangleName(const std::string &Name,
const SymbolizableModule *ModInfo);
private:
// Bundles together object file with code/data and object file with
// corresponding debug info. These objects can be the same.
typedef std::pair<ObjectFile*, ObjectFile*> ObjectPair;
/// Returns a SymbolizableModule or an error if loading debug info failed.
/// Only one attempt is made to load a module, and errors during loading are
/// only reported once. Subsequent calls to get module info for a module that
/// failed to load will return nullptr.
Expected<SymbolizableModule *>
getOrCreateModuleInfo(const std::string &ModuleName);
ObjectFile *lookUpDsymFile(const std::string &Path,
const MachOObjectFile *ExeObj,
const std::string &ArchName);
ObjectFile *lookUpDebuglinkObject(const std::string &Path,
const ObjectFile *Obj,
const std::string &ArchName);
/// \brief Returns pair of pointers to object and debug object.
Expected<ObjectPair> getOrCreateObjectPair(const std::string &Path,
const std::string &ArchName);
/// \brief Return a pointer to object file at specified path, for a specified
/// architecture (e.g. if path refers to a Mach-O universal binary, only one
/// object file from it will be returned).
Expected<ObjectFile *> getOrCreateObject(const std::string &Path,
const std::string &ArchName);
std::map<std::string, std::unique_ptr<SymbolizableModule>> Modules;
/// \brief Contains cached results of getOrCreateObjectPair().
std::map<std::pair<std::string, std::string>, ObjectPair>
ObjectPairForPathArch;
/// \brief Contains parsed binary for each path, or parsing error.
std::map<std::string, OwningBinary<Binary>> BinaryForPath;
/// \brief Parsed object file for path/architecture pair, where "path" refers
/// to Mach-O universal binary.
std::map<std::pair<std::string, std::string>, std::unique_ptr<ObjectFile>>
ObjectForUBPathAndArch;
Options Opts;
};
} // namespace symbolize
} // namespace llvm
#endif
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