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Copy pathAuxiliarySymbol.cpp
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109 lines (85 loc) · 2.95 KB
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/* Copyright 2017 - 2025 R. Thomas
* Copyright 2017 - 2025 Quarkslab
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <cassert>
#include "LIEF/utils.hpp"
#include "LIEF/COFF/AuxiliarySymbol.hpp"
#include "LIEF/COFF/AuxiliarySymbols/AuxiliaryCLRToken.hpp"
#include "LIEF/COFF/AuxiliarySymbols/AuxiliaryFunctionDefinition.hpp"
#include "LIEF/COFF/AuxiliarySymbols/AuxiliarybfAndefSymbol.hpp"
#include "LIEF/COFF/AuxiliarySymbols/AuxiliaryWeakExternal.hpp"
#include "LIEF/COFF/AuxiliarySymbols/AuxiliaryFile.hpp"
#include "LIEF/COFF/AuxiliarySymbols/AuxiliarySectionDefinition.hpp"
#include "LIEF/COFF/Symbol.hpp"
#include "internal_utils.hpp"
namespace LIEF::COFF {
std::unique_ptr<AuxiliarySymbol>
AuxiliarySymbol::parse(Symbol& sym, std::vector<uint8_t> payload)
{
assert(payload.size() >= 18);
const TYPE ty = get_aux_type(sym);
switch (ty) {
case TYPE::CLR_TOKEN:
return AuxiliaryCLRToken::parse(payload);
case TYPE::FUNC_DEF:
return AuxiliaryFunctionDefinition::parse(payload);
case TYPE::BF_AND_EF:
return AuxiliarybfAndefSymbol::parse(sym, std::move(payload));
case TYPE::WEAK_EXTERNAL:
return AuxiliaryWeakExternal::parse(payload);
case TYPE::FILE:
return AuxiliaryFile::parse(payload);
case TYPE::SEC_DEF:
return AuxiliarySectionDefinition::parse(payload);
case TYPE::UNKNOWN:
return std::make_unique<AuxiliarySymbol>(std::move(payload));
}
return std::make_unique<AuxiliarySymbol>(std::move(payload));
}
AuxiliarySymbol::TYPE AuxiliarySymbol::get_aux_type(const Symbol& sym) {
if (sym.storage_class() == Symbol::STORAGE_CLASS::STATIC) {
return TYPE::SEC_DEF;
}
if (sym.is_external() && sym.is_absolute()) {
return TYPE::SEC_DEF;
}
if (sym.storage_class() == Symbol::STORAGE_CLASS::CLR_TOKEN) {
return TYPE::CLR_TOKEN;
}
if (sym.is_undefined() || sym.is_weak_external()) {
return TYPE::WEAK_EXTERNAL;
}
if (sym.is_external() &&
sym.base_type() == Symbol::BASE_TYPE::TY_NULL &&
sym.complex_type() == Symbol::COMPLEX_TYPE::TY_FUNCTION &&
!Symbol::is_reversed_sec_idx(sym.section_idx()))
{
return TYPE::FUNC_DEF;
}
if (sym.is_function_line_info()) {
return TYPE::BF_AND_EF;
}
if (sym.is_file_record()) {
return TYPE::FILE;
}
return TYPE::UNKNOWN;
}
std::string AuxiliarySymbol::to_string() const {
std::string out = "AuxiliarySymbol {\n";
out += indent(dump(payload()), 2);
out += "}\n";
return out;
}
}