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ABIWindows_x86_64.h
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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-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef LLDB_SOURCE_PLUGINS_ABI_X86_ABIWINDOWS_X86_64_H
10#define LLDB_SOURCE_PLUGINS_ABI_X86_ABIWINDOWS_X86_64_H
11
13
15public:
16 ~ABIWindows_x86_64() override = default;
17
18 size_t GetRedZoneSize() const override;
19
21 lldb::addr_t functionAddress,
22 lldb::addr_t returnAddress,
23 llvm::ArrayRef<lldb::addr_t> args) const override;
24
26 lldb_private::ValueList &values) const override;
27
30 lldb::ValueObjectSP &new_value) override;
31
34 lldb_private::CompilerType &type) const override;
35
36 bool
38
39 bool CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
40
41 bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
42
43 // In Windows_x86_64 ABI requires that the stack will be maintained 16-byte
44 // aligned.
45 // When ntdll invokes callbacks such as KiUserExceptionDispatcher or
46 // KiUserCallbackDispatcher, those functions won't have a properly 16-byte
47 // aligned stack - but tolerate unwinding through them by relaxing the
48 // requirement to 8 bytes.
50 if (cfa & (8ull - 1ull))
51 return false; // Not 8 byte aligned
52 if (cfa == 0)
53 return false; // Zero is not a valid stack address
54 return true;
55 }
56
58 // We have a 64 bit address space, so anything is valid as opcodes
59 // aren't fixed width...
60 return true;
61 }
62
63 bool GetPointerReturnRegister(const char *&name) override;
64
65 //------------------------------------------------------------------
66 // Static Functions
67 //------------------------------------------------------------------
68
69 static void Initialize();
70
71 static void Terminate();
72
74
75 static llvm::StringRef GetPluginNameStatic() { return "windows-x86_64"; }
76
77 //------------------------------------------------------------------
78 // PluginInterface protocol
79 //------------------------------------------------------------------
80
81 llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
82
83protected:
85
88 lldb_private::CompilerType &ast_type) const;
89
91 uint32_t GetGenericNum(llvm::StringRef reg) override;
92
93private:
94 using ABIX86_64::ABIX86_64; // Call CreateInstance instead.
95};
96
97#endif // LLDB_SOURCE_PLUGINS_ABI_X86_ABIWINDOWS_X86_64_H
llvm::StringRef GetPluginName() override
lldb_private::Status SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value) override
static llvm::StringRef GetPluginNameStatic()
static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp, const lldb_private::ArchSpec &arch)
lldb::ValueObjectSP GetReturnValueObjectImpl(lldb_private::Thread &thread, lldb_private::CompilerType &type) const override
lldb::ValueObjectSP GetReturnValueObjectSimple(lldb_private::Thread &thread, lldb_private::CompilerType &ast_type) const
bool CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override
void CreateRegisterMapIfNeeded()
bool GetPointerReturnRegister(const char *&name) override
bool CallFrameAddressIsValid(lldb::addr_t cfa) override
~ABIWindows_x86_64() override=default
bool CodeAddressIsValid(lldb::addr_t pc) override
bool GetArgumentValues(lldb_private::Thread &thread, lldb_private::ValueList &values) const override
bool CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override
size_t GetRedZoneSize() const override
bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override
static void Initialize()
bool PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp, lldb::addr_t functionAddress, lldb::addr_t returnAddress, llvm::ArrayRef< lldb::addr_t > args) const override
bool RegisterIsCalleeSaved(const lldb_private::RegisterInfo *reg_info)
uint32_t GetGenericNum(llvm::StringRef reg) override
Return the generic number of the given register.
An architecture specification class.
Definition: ArchSpec.h:31
Generic representation of a type in a programming language.
Definition: CompilerType.h:36
An error handling class.
Definition: Status.h:44
std::shared_ptr< lldb_private::ABI > ABISP
Definition: lldb-forward.h:310
std::shared_ptr< lldb_private::StackFrame > StackFrameSP
Definition: lldb-forward.h:412
std::shared_ptr< lldb_private::ValueObject > ValueObjectSP
Definition: lldb-forward.h:472
std::shared_ptr< lldb_private::Process > ProcessSP
Definition: lldb-forward.h:381
uint64_t addr_t
Definition: lldb-types.h:80
Every register is described in detail including its name, alternate name (optional),...