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/* Copyright 2017 R. Thomas
* Copyright 2017 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 <numeric>
#include <sstream>
#include <iomanip>
#include "LIEF/ELF/DynamicEntryFlags.hpp"
#include "LIEF/ELF/EnumToString.hpp"
namespace LIEF {
namespace ELF {
DynamicEntryFlags::DynamicEntryFlags(void) = default;
DynamicEntryFlags& DynamicEntryFlags::operator=(const DynamicEntryFlags&) = default;
DynamicEntryFlags::DynamicEntryFlags(const DynamicEntryFlags&) = default;
bool DynamicEntryFlags::has(DYNAMIC_FLAGS f) const {
if (this->tag() != DYNAMIC_TAGS::DT_FLAGS) {
return false;
}
return (static_cast<uint64_t>(f) & this->value()) > 0;
}
bool DynamicEntryFlags::has(DYNAMIC_FLAGS_1 f) const {
if (this->tag() != DYNAMIC_TAGS::DT_FLAGS_1) {
return false;
}
return (static_cast<uint64_t>(f) & this->value()) > 0;
}
DynamicEntryFlags::flags_list_t DynamicEntryFlags::flags(void) const {
DynamicEntryFlags::flags_list_t flags;
if (this->tag() == DYNAMIC_TAGS::DT_FLAGS) {
for (DYNAMIC_FLAGS f : dynamic_flags_array) {
if (this->has(f)) {
flags.insert(static_cast<uint32_t>(f));
}
}
}
if (this->tag() == DYNAMIC_TAGS::DT_FLAGS_1) {
for (DYNAMIC_FLAGS_1 f : dynamic_flags_1_array) {
if (this->has(f)) {
flags.insert(static_cast<uint32_t>(f));
}
}
}
return flags;
}
void DynamicEntryFlags::add(DYNAMIC_FLAGS f) {
if (this->tag() != DYNAMIC_TAGS::DT_FLAGS) {
return;
}
this->value(this->value() | static_cast<uint64_t>(f));
}
void DynamicEntryFlags::add(DYNAMIC_FLAGS_1 f) {
if (this->tag() != DYNAMIC_TAGS::DT_FLAGS_1) {
return;
}
this->value(this->value() | static_cast<uint64_t>(f));
}
void DynamicEntryFlags::remove(DYNAMIC_FLAGS f) {
if (this->tag() != DYNAMIC_TAGS::DT_FLAGS) {
return;
}
this->value(this->value() & (~ static_cast<uint64_t>(f)));
}
void DynamicEntryFlags::remove(DYNAMIC_FLAGS_1 f) {
if (this->tag() != DYNAMIC_TAGS::DT_FLAGS_1) {
return;
}
this->value(this->value() & (~ static_cast<uint64_t>(f)));
}
DynamicEntryFlags& DynamicEntryFlags::operator+=(DYNAMIC_FLAGS f) {
this->add(f);
return *this;
}
DynamicEntryFlags& DynamicEntryFlags::operator+=(DYNAMIC_FLAGS_1 f) {
this->add(f);
return *this;
}
DynamicEntryFlags& DynamicEntryFlags::operator-=(DYNAMIC_FLAGS f) {
this->remove(f);
return *this;
}
DynamicEntryFlags& DynamicEntryFlags::operator-=(DYNAMIC_FLAGS_1 f) {
this->remove(f);
return *this;
}
void DynamicEntryFlags::accept(Visitor& visitor) const {
visitor.visit(*this);
}
std::ostream& DynamicEntryFlags::print(std::ostream& os) const {
DynamicEntry::print(os);
const flags_list_t& flags = this->flags();
std::string flags_str = "";
if (this->tag() == DYNAMIC_TAGS::DT_FLAGS) {
flags_str = std::accumulate(
std::begin(flags),
std::end(flags), std::string{},
[] (const std::string& a, const uint32_t flag) {
DYNAMIC_FLAGS f = static_cast<DYNAMIC_FLAGS>(flag);
return a.empty() ? to_string(f) : a + " - " + to_string(f);
});
}
if (this->tag() == DYNAMIC_TAGS::DT_FLAGS_1) {
flags_str = std::accumulate(
std::begin(flags),
std::end(flags), std::string{},
[] (const std::string& a, const uint32_t flag) {
DYNAMIC_FLAGS_1 f = static_cast<DYNAMIC_FLAGS_1>(flag);
return a.empty() ? to_string(f) : a + " - " + to_string(f);
});
}
os << " " << flags_str;
return os;
}
}
}
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