Atmosphere-libs/libstratosphere/include/stratosphere/diag/impl/diag_backtrace_impl.os.horizon.hpp

51 lines
1.6 KiB
C++

/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <vapours.hpp>
namespace ams::diag::impl {
class Backtrace {
private:
static constexpr size_t MemoryInfoBufferSize = 5;
public:
struct StackInfo {
uintptr_t stack_top;
uintptr_t stack_bottom;
};
private:
s64 m_memory_info_buffer[MemoryInfoBufferSize]{};
StackInfo *m_current_stack_info = nullptr;
StackInfo m_exception_stack_info{};
StackInfo m_normal_stack_info{};
uintptr_t m_fp = 0;
uintptr_t m_prev_fp = 0;
uintptr_t m_lr = 0;
public:
Backtrace() = default;
void Initialize();
void Initialize(uintptr_t fp, uintptr_t sp, uintptr_t pc);
bool Step();
uintptr_t GetStackPointer() const;
uintptr_t GetReturnAddress() const;
private:
void SetStackInfo(uintptr_t fp, uintptr_t sp);
};
}