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//===- Symbolize.h ----------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// 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/Binary.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/Error.h"
#include <algorithm>
#include <cstdint>
#include <map>
#include <memory>
#include <string>
#include <utility>
#include <vector>
namespace llvm {
namespace symbolize {
using namespace object;
using FunctionNameKind = DILineInfoSpecifier::FunctionNameKind;
class LLVMSymbolizer {
public:
struct Options {
FunctionNameKind PrintFunctions = FunctionNameKind::LinkageName;
bool UseSymbolTable = true;
bool Demangle = true;
bool RelativeAddresses = false;
bool UntagAddresses = false;
std::string DefaultArch;
std::vector<std::string> DsymHints;
std::string FallbackDebugPath;
std::string DWPName;
};
LLVMSymbolizer() = default;
LLVMSymbolizer(const Options &Opts) : Opts(Opts) {}
~LLVMSymbolizer() {
flush();
}
Expected<DILineInfo> symbolizeCode(const ObjectFile &Obj,
object::SectionedAddress ModuleOffset);
Expected<DILineInfo> symbolizeCode(const std::string &ModuleName,
object::SectionedAddress ModuleOffset);
Expected<DIInliningInfo>
symbolizeInlinedCode(const std::string &ModuleName,
object::SectionedAddress ModuleOffset);
Expected<DIGlobal> symbolizeData(const std::string &ModuleName,
object::SectionedAddress ModuleOffset);
Expected<std::vector<DILocal>>
symbolizeFrame(const std::string &ModuleName,
object::SectionedAddress ModuleOffset);
void flush();
static std::string
DemangleName(const std::string &Name,
const SymbolizableModule *DbiModuleDescriptor);
private:
// Bundles together object file with code/data and object file with
// corresponding debug info. These objects can be the same.
using ObjectPair = std::pair<const ObjectFile *, const ObjectFile *>;
Expected<DILineInfo>
symbolizeCodeCommon(SymbolizableModule *Info,
object::SectionedAddress ModuleOffset);
/// 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);
Expected<SymbolizableModule *>
createModuleInfo(const ObjectFile *Obj,
std::unique_ptr<DIContext> Context,
StringRef 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);
/// Returns pair of pointers to object and debug object.
Expected<ObjectPair> getOrCreateObjectPair(const std::string &Path,
const std::string &ArchName);
/// 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;
/// Contains cached results of getOrCreateObjectPair().
std::map<std::pair<std::string, std::string>, ObjectPair>
ObjectPairForPathArch;
/// Contains parsed binary for each path, or parsing error.
std::map<std::string, OwningBinary<Binary>> BinaryForPath;
/// 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;
};
} // end namespace symbolize
} // end namespace llvm
#endif // LLVM_DEBUGINFO_SYMBOLIZE_SYMBOLIZE_H
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