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Copy pathThreadCommand.cpp
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122 lines (106 loc) · 3.38 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 <iomanip>
#include "logging.hpp"
#include "LIEF/Visitor.hpp"
#include "LIEF/MachO/ThreadCommand.hpp"
#include "MachO/Structures.hpp"
namespace LIEF {
namespace MachO {
ThreadCommand::ThreadCommand(const details::thread_command& cmd, Header::CPU_TYPE arch) :
LoadCommand::LoadCommand{LoadCommand::TYPE(cmd.cmd), cmd.cmdsize},
flavor_{cmd.flavor},
count_{cmd.count},
architecture_{arch}
{}
ThreadCommand::ThreadCommand(uint32_t flavor, uint32_t count, Header::CPU_TYPE arch) :
LoadCommand::LoadCommand{LoadCommand::TYPE::UNIXTHREAD,
static_cast<uint32_t>(sizeof(details::thread_command) + count * sizeof(uint32_t))},
flavor_{flavor},
count_{count},
architecture_{arch},
state_(size() - sizeof(details::thread_command), 0)
{
}
uint64_t ThreadCommand::pc() const {
uint64_t entry = 0;
switch(architecture_) {
case Header::CPU_TYPE::X86:
{
if (state_.size() < sizeof(details::x86_thread_state_t)) {
return entry;
}
entry = reinterpret_cast<const details::x86_thread_state_t*>(state_.data())->eip;
break;
}
case Header::CPU_TYPE::X86_64:
{
if (state_.size() < sizeof(details::x86_thread_state64_t)) {
return entry;
}
entry = reinterpret_cast<const details::x86_thread_state64_t*>(state_.data())->rip;
break;
}
case Header::CPU_TYPE::ARM:
{
if (state_.size() < sizeof(details::arm_thread_state_t)) {
return entry;
}
entry = reinterpret_cast<const details::arm_thread_state_t*>(state_.data())->r15;
break;
}
case Header::CPU_TYPE::ARM64:
{
if (state_.size() < sizeof(details::arm_thread_state64_t)) {
return entry;
}
entry = reinterpret_cast<const details::arm_thread_state64_t*>(state_.data())->pc;
break;
}
case Header::CPU_TYPE::POWERPC:
{
if (state_.size() < sizeof(details::ppc_thread_state_t)) {
return entry;
}
entry = reinterpret_cast<const details::ppc_thread_state_t*>(state_.data())->srr0;
break;
}
case Header::CPU_TYPE::POWERPC64:
{
if (state_.size() < sizeof(details::ppc_thread_state64_t)) {
return entry;
}
entry = reinterpret_cast<const details::ppc_thread_state64_t*>(state_.data())->srr0;
break;
}
default:
{
LIEF_ERR("Unknown architecture");
}
}
return entry;
}
void ThreadCommand::accept(Visitor& visitor) const {
visitor.visit(*this);
}
std::ostream& ThreadCommand::print(std::ostream& os) const {
LoadCommand::print(os) << '\n';
os << fmt::format("flavor=0x{:x}, count=0x{:x}, pc=0x{:06x}",
flavor(), count(), pc());
return os;
}
}
}