2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
//===-- UnwindMacOSXFrameBackchain.h ----------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef lldb_UnwindMacOSXFrameBackchain_h_
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#define lldb_UnwindMacOSXFrameBackchain_h_
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#include <vector>
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#include "lldb/Target/Unwind.h"
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#include "lldb/lldb-private.h"
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class UnwindMacOSXFrameBackchain : public lldb_private::Unwind {
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public:
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UnwindMacOSXFrameBackchain(lldb_private::Thread &thread);
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~UnwindMacOSXFrameBackchain() override = default;
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protected:
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void DoClear() override { m_cursors.clear(); }
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uint32_t DoGetFrameCount() override;
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bool DoGetFrameInfoAtIndex(uint32_t frame_idx, lldb::addr_t &cfa,
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lldb::addr_t &pc) override;
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lldb::RegisterContextSP
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DoCreateRegisterContextForFrame(lldb_private::StackFrame *frame) override;
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friend class RegisterContextMacOSXFrameBackchain;
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struct Cursor {
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lldb::addr_t pc; // Program counter
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lldb::addr_t fp; // Frame pointer for us with backchain
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};
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private:
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std::vector<Cursor> m_cursors;
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size_t GetStackFrameData_i386(const lldb_private::ExecutionContext &exe_ctx);
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size_t
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GetStackFrameData_x86_64(const lldb_private::ExecutionContext &exe_ctx);
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//------------------------------------------------------------------
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// For UnwindMacOSXFrameBackchain only
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//------------------------------------------------------------------
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DISALLOW_COPY_AND_ASSIGN(UnwindMacOSXFrameBackchain);
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};
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#endif // lldb_UnwindMacOSXFrameBackchain_h_
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