forked from OSchip/llvm-project
54 lines
1.6 KiB
C++
54 lines
1.6 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_UnwindMacOSXFrameBackchain_h_
|
|
#define lldb_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) 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_UnwindMacOSXFrameBackchain_h_
|