Files
clang-p2996/lldb/source/Plugins/Process/Utility/UnwindMacOSXFrameBackchain.h
Jonas Devlieghere cdc514e4c6 [lldb] Update header guards to be consistent and compliant with LLVM (NFC)
LLDB has a few different styles of header guards and they're not very
consistent because things get moved around or copy/pasted. This patch
unifies the header guards across LLDB and converts everything to match
LLVM's style.

Differential revision: https://reviews.llvm.org/D74743
2020-02-17 23:15:40 -08:00

55 lines
1.7 KiB
C++

//===-- UnwindMacOSXFrameBackchain.h ----------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_UNWINDMACOSXFRAMEBACKCHAIN_H
#define LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_UNWINDMACOSXFRAMEBACKCHAIN_H
#include <vector>
#include "lldb/Target/Unwind.h"
#include "lldb/lldb-private.h"
class UnwindMacOSXFrameBackchain : public lldb_private::Unwind {
public:
UnwindMacOSXFrameBackchain(lldb_private::Thread &thread);
~UnwindMacOSXFrameBackchain() override = default;
protected:
void DoClear() override { m_cursors.clear(); }
uint32_t DoGetFrameCount() override;
bool DoGetFrameInfoAtIndex(uint32_t frame_idx, lldb::addr_t &cfa,
lldb::addr_t &pc,
bool &behaves_like_zeroth_frame) override;
lldb::RegisterContextSP
DoCreateRegisterContextForFrame(lldb_private::StackFrame *frame) override;
friend class RegisterContextMacOSXFrameBackchain;
struct Cursor {
lldb::addr_t pc; // Program counter
lldb::addr_t fp; // Frame pointer for us with backchain
};
private:
std::vector<Cursor> m_cursors;
size_t GetStackFrameData_i386(const lldb_private::ExecutionContext &exe_ctx);
size_t
GetStackFrameData_x86_64(const lldb_private::ExecutionContext &exe_ctx);
// For UnwindMacOSXFrameBackchain only
DISALLOW_COPY_AND_ASSIGN(UnwindMacOSXFrameBackchain);
};
#endif // LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_UNWINDMACOSXFRAMEBACKCHAIN_H