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//===- SymbolizableObjectFile.h ---------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the SymbolizableObjectFile class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_DEBUGINFO_SYMBOLIZE_SYMBOLIZABLEOBJECTFILE_H
#define LLVM_LIB_DEBUGINFO_SYMBOLIZE_SYMBOLIZABLEOBJECTFILE_H
#include "llvm/ADT/StringRef.h"
#include "llvm/DebugInfo/DIContext.h"
#include "llvm/DebugInfo/Symbolize/SymbolizableModule.h"
#include "llvm/Support/ErrorOr.h"
#include <cstdint>
#include <map>
#include <memory>
#include <string>
#include <system_error>
namespace llvm {
class DataExtractor;
namespace symbolize {
class SymbolizableObjectFile : public SymbolizableModule {
public:
static ErrorOr<std::unique_ptr<SymbolizableObjectFile>>
create(object::ObjectFile *Obj, std::unique_ptr<DIContext> DICtx);
DILineInfo symbolizeCode(uint64_t ModuleOffset, FunctionNameKind FNKind,
bool UseSymbolTable) const override;
DIInliningInfo symbolizeInlinedCode(uint64_t ModuleOffset,
FunctionNameKind FNKind,
bool UseSymbolTable) const override;
DIGlobal symbolizeData(uint64_t ModuleOffset) const override;
// Return true if this is a 32-bit x86 PE COFF module.
bool isWin32Module() const override;
// Returns the preferred base of the module, i.e. where the loader would place
// it in memory assuming there were no conflicts.
uint64_t getModulePreferredBase() const override;
private:
bool shouldOverrideWithSymbolTable(FunctionNameKind FNKind,
bool UseSymbolTable) const;
bool getNameFromSymbolTable(object::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.
std::error_code addSymbol(const object::SymbolRef &Symbol,
uint64_t SymbolSize,
DataExtractor *OpdExtractor = nullptr,
uint64_t OpdAddress = 0);
std::error_code addCoffExportSymbols(const object::COFFObjectFile *CoffObj);
object::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;
SymbolizableObjectFile(object::ObjectFile *Obj,
std::unique_ptr<DIContext> DICtx);
};
} // end namespace symbolize
} // end namespace llvm
#endif // LLVM_LIB_DEBUGINFO_SYMBOLIZE_SYMBOLIZABLEOBJECTFILE_H
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