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1//===-- ABISysV_arc.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 liblldb_ABISysV_arc_h_10#define liblldb_ABISysV_arc_h_11 12// Other libraries and framework includes13#include <optional>14 15// Project includes16#include "lldb/Target/ABI.h"17#include "lldb/lldb-private.h"18 19class ABISysV_arc : public lldb_private::RegInfoBasedABI {20public:21 ~ABISysV_arc() override = default;22 23 size_t GetRedZoneSize() const override;24 25 bool PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp,26 lldb::addr_t functionAddress,27 lldb::addr_t returnAddress,28 llvm::ArrayRef<lldb::addr_t> args) const override;29 30 // Special thread plan for GDB style non-jit function calls.31 bool32 PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp,33 lldb::addr_t functionAddress, lldb::addr_t returnAddress,34 llvm::Type &prototype,35 llvm::ArrayRef<ABI::CallArgument> args) const override;36 37 bool GetArgumentValues(lldb_private::Thread &thread,38 lldb_private::ValueList &values) const override;39 40 lldb_private::Status41 SetReturnValueObject(lldb::StackFrameSP &frame_sp,42 lldb::ValueObjectSP &new_value) override;43 44 lldb::ValueObjectSP45 GetReturnValueObjectImpl(lldb_private::Thread &thread,46 lldb_private::CompilerType &type) const override;47 48 // Specialized to work with llvm IR types.49 lldb::ValueObjectSP GetReturnValueObjectImpl(lldb_private::Thread &thread,50 llvm::Type &type) const override;51 52 lldb::UnwindPlanSP CreateFunctionEntryUnwindPlan() override;53 54 lldb::UnwindPlanSP CreateDefaultUnwindPlan() override;55 56 bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;57 58 bool CallFrameAddressIsValid(lldb::addr_t cfa) override {59 // Stack call frame address must be 4 byte aligned.60 return (cfa & 0x3ull) == 0;61 }62 63 bool CodeAddressIsValid(lldb::addr_t pc) override {64 // Code addresse must be 2 byte aligned.65 return (pc & 1ull) == 0;66 }67 68 const lldb_private::RegisterInfo *69 GetRegisterInfoArray(uint32_t &count) override;70 71 //------------------------------------------------------------------72 // Static Functions73 //------------------------------------------------------------------74 75 static void Initialize();76 77 static void Terminate();78 79 static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp,80 const lldb_private::ArchSpec &arch);81 82 static llvm::StringRef GetPluginNameStatic() { return "sysv-arc"; }83 84 //------------------------------------------------------------------85 // PluginInterface protocol86 //------------------------------------------------------------------87 88 llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }89 90private:91 lldb::ValueObjectSP92 GetReturnValueObjectSimple(lldb_private::Thread &thread,93 lldb_private::CompilerType &ast_type) const;94 95 bool IsRegisterFileReduced(lldb_private::RegisterContext ®_ctx) const;96 97 using lldb_private::RegInfoBasedABI::RegInfoBasedABI; // Call CreateInstance instead.98 99 using RegisterFileFlag = std::optional<bool>;100 mutable RegisterFileFlag m_is_reg_file_reduced;101};102 103#endif // liblldb_ABISysV_arc_h_104