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1//===-- ABIWindows_x86_64.h -------------------------------------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLDB_SOURCE_PLUGINS_ABI_X86_ABIWINDOWS_X86_64_H10#define LLDB_SOURCE_PLUGINS_ABI_X86_ABIWINDOWS_X86_64_H11 12#include "Plugins/ABI/X86/ABIX86_64.h"13 14class ABIWindows_x86_64 : public ABIX86_64 {15public:16 ~ABIWindows_x86_64() override = default;17 18 size_t GetRedZoneSize() const override;19 20 bool PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp,21 lldb::addr_t functionAddress,22 lldb::addr_t returnAddress,23 llvm::ArrayRef<lldb::addr_t> args) const override;24 25 bool GetArgumentValues(lldb_private::Thread &thread,26 lldb_private::ValueList &values) const override;27 28 lldb_private::Status29 SetReturnValueObject(lldb::StackFrameSP &frame_sp,30 lldb::ValueObjectSP &new_value) override;31 32 lldb::ValueObjectSP33 GetReturnValueObjectImpl(lldb_private::Thread &thread,34 lldb_private::CompilerType &type) const override;35 36 lldb::UnwindPlanSP CreateFunctionEntryUnwindPlan() override;37 38 lldb::UnwindPlanSP CreateDefaultUnwindPlan() override;39 40 bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;41 42 // In Windows_x86_64 ABI requires that the stack will be maintained 16-byte43 // aligned.44 // When ntdll invokes callbacks such as KiUserExceptionDispatcher or45 // KiUserCallbackDispatcher, those functions won't have a properly 16-byte46 // aligned stack - but tolerate unwinding through them by relaxing the47 // requirement to 8 bytes.48 bool CallFrameAddressIsValid(lldb::addr_t cfa) override {49 if (cfa & (8ull - 1ull))50 return false; // Not 8 byte aligned51 if (cfa == 0)52 return false; // Zero is not a valid stack address53 return true;54 }55 56 bool CodeAddressIsValid(lldb::addr_t pc) override {57 // We have a 64 bit address space, so anything is valid as opcodes58 // aren't fixed width...59 return true;60 }61 62 bool GetPointerReturnRegister(const char *&name) override;63 64 //------------------------------------------------------------------65 // Static Functions66 //------------------------------------------------------------------67 68 static void Initialize();69 70 static void Terminate();71 72 static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp, const lldb_private::ArchSpec &arch);73 74 static llvm::StringRef GetPluginNameStatic() { return "windows-x86_64"; }75 76 //------------------------------------------------------------------77 // PluginInterface protocol78 //------------------------------------------------------------------79 80 llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }81 82protected:83 void CreateRegisterMapIfNeeded();84 85 lldb::ValueObjectSP86 GetReturnValueObjectSimple(lldb_private::Thread &thread,87 lldb_private::CompilerType &ast_type) const;88 89 bool RegisterIsCalleeSaved(const lldb_private::RegisterInfo *reg_info);90 uint32_t GetGenericNum(llvm::StringRef reg) override;91 92private:93 using ABIX86_64::ABIX86_64; // Call CreateInstance instead.94};95 96#endif // LLDB_SOURCE_PLUGINS_ABI_X86_ABIWINDOWS_X86_64_H97