| 1 | //===-- EmulateInstructionPPC64.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_INSTRUCTION_PPC64_EMULATEINSTRUCTIONPPC64_H |
| 10 | #define LLDB_SOURCE_PLUGINS_INSTRUCTION_PPC64_EMULATEINSTRUCTIONPPC64_H |
| 11 | |
| 12 | #include "lldb/Core/EmulateInstruction.h" |
| 13 | #include "lldb/Interpreter/OptionValue.h" |
| 14 | #include "lldb/Utility/Log.h" |
| 15 | #include <optional> |
| 16 | |
| 17 | namespace lldb_private { |
| 18 | |
| 19 | class EmulateInstructionPPC64 : public EmulateInstruction { |
| 20 | public: |
| 21 | EmulateInstructionPPC64(const ArchSpec &arch); |
| 22 | |
| 23 | static void Initialize(); |
| 24 | |
| 25 | static void Terminate(); |
| 26 | |
| 27 | static llvm::StringRef GetPluginNameStatic() { return "ppc64"; } |
| 28 | |
| 29 | static llvm::StringRef GetPluginDescriptionStatic(); |
| 30 | |
| 31 | static EmulateInstruction *CreateInstance(const ArchSpec &arch, |
| 32 | InstructionType inst_type); |
| 33 | |
| 34 | static bool |
| 35 | SupportsEmulatingInstructionsOfTypeStatic(InstructionType inst_type) { |
| 36 | switch (inst_type) { |
| 37 | case eInstructionTypeAny: |
| 38 | case eInstructionTypePrologueEpilogue: |
| 39 | return true; |
| 40 | |
| 41 | case eInstructionTypePCModifying: |
| 42 | case eInstructionTypeAll: |
| 43 | return false; |
| 44 | } |
| 45 | return false; |
| 46 | } |
| 47 | |
| 48 | llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); } |
| 49 | |
| 50 | bool SetTargetTriple(const ArchSpec &arch) override; |
| 51 | |
| 52 | bool SupportsEmulatingInstructionsOfType(InstructionType inst_type) override { |
| 53 | return SupportsEmulatingInstructionsOfTypeStatic(inst_type); |
| 54 | } |
| 55 | |
| 56 | bool ReadInstruction() override; |
| 57 | |
| 58 | bool EvaluateInstruction(uint32_t evaluate_options) override; |
| 59 | |
| 60 | bool TestEmulation(Stream &out_stream, ArchSpec &arch, |
| 61 | OptionValueDictionary *test_data) override { |
| 62 | return false; |
| 63 | } |
| 64 | |
| 65 | std::optional<RegisterInfo> GetRegisterInfo(lldb::RegisterKind reg_kind, |
| 66 | uint32_t reg_num) override; |
| 67 | |
| 68 | bool CreateFunctionEntryUnwind(UnwindPlan &unwind_plan) override; |
| 69 | |
| 70 | private: |
| 71 | struct Opcode { |
| 72 | uint32_t mask; |
| 73 | uint32_t value; |
| 74 | bool (EmulateInstructionPPC64::*callback)(uint32_t opcode); |
| 75 | const char *name; |
| 76 | }; |
| 77 | |
| 78 | uint32_t m_fp = LLDB_INVALID_REGNUM; |
| 79 | |
| 80 | Opcode *GetOpcodeForInstruction(uint32_t opcode); |
| 81 | |
| 82 | bool EmulateMFSPR(uint32_t opcode); |
| 83 | bool EmulateLD(uint32_t opcode); |
| 84 | bool EmulateSTD(uint32_t opcode); |
| 85 | bool EmulateOR(uint32_t opcode); |
| 86 | bool EmulateADDI(uint32_t opcode); |
| 87 | }; |
| 88 | |
| 89 | } // namespace lldb_private |
| 90 | |
| 91 | #endif // LLDB_SOURCE_PLUGINS_INSTRUCTION_PPC64_EMULATEINSTRUCTIONPPC64_H |
| 92 |