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// Copyright 2017 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#pragma once
#include <cstdint>
#include <cstdio>
#include <memory>
#include <string>
#include "src/lib/fxl/macros.h"
#include "elf_reader.h"
namespace debugger_utils {
struct ElfSymbol {
// weak pointer into the string section of the loaded ELF file
const char* name = nullptr;
uint64_t addr = 0;
uint64_t size = 0;
class ElfSymbolTable {
ElfSymbolTable(const std::string& file_name, const std::string& contents);
const std::string& file_name() const { return file_name_; }
const std::string& contents() const { return contents_; }
size_t num_symbols() const { return num_symbols_; }
// |symtab_type| is one of SHT_SYMTAB, SHT_DYNSYM.
bool Populate(ElfReader* elf, unsigned symtab_type);
// |index| must be valid.
const ElfSymbol& GetSymbol(size_t index) const { return symbols_[index]; }
const ElfSymbol* FindSymbol(uint64_t addr) const;
void Dump(FILE*) const;
void Finalize();
// For debugging/informational purposes only.
const std::string file_name_;
// For debugging/informational purposes only.
// One may wish to load a file's symbols into different symbol tables.
// E.g., One may wish to keep SHT_SYMTAB and SHT_DYNSYM separate.
// This string is for identifying the contents of the symtab in error
// messages, etc.
const std::string contents_;
size_t num_symbols_ = 0;
// Once Finalize() is called this is sorted by |Symbol.addr|.
ElfSymbol* symbols_ = nullptr;
// To separate our lifetime with that of the ELF reader, we store the
// strings here.
std::unique_ptr<ElfSectionContents> string_section_;
} // namespace debugger_utils