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1//===-- ABISysV_s390x.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_SYSTEMZ_ABISYSV_S390X_H10#define LLDB_SOURCE_PLUGINS_ABI_SYSTEMZ_ABISYSV_S390X_H11 12#include "lldb/Target/ABI.h"13#include "lldb/lldb-private.h"14 15class ABISysV_s390x : public lldb_private::RegInfoBasedABI {16public:17 ~ABISysV_s390x() override = default;18 19 size_t GetRedZoneSize() const override;20 21 bool PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp,22 lldb::addr_t functionAddress,23 lldb::addr_t returnAddress,24 llvm::ArrayRef<lldb::addr_t> args) const override;25 26 bool GetArgumentValues(lldb_private::Thread &thread,27 lldb_private::ValueList &values) const override;28 29 lldb_private::Status30 SetReturnValueObject(lldb::StackFrameSP &frame_sp,31 lldb::ValueObjectSP &new_value) override;32 33 lldb::ValueObjectSP34 GetReturnValueObjectImpl(lldb_private::Thread &thread,35 lldb_private::CompilerType &type) const override;36 37 lldb::UnwindPlanSP CreateFunctionEntryUnwindPlan() override;38 39 lldb::UnwindPlanSP CreateDefaultUnwindPlan() override;40 41 bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;42 43 bool GetFallbackRegisterLocation(44 const lldb_private::RegisterInfo *reg_info,45 lldb_private::UnwindPlan::Row::AbstractRegisterLocation &unwind_regloc)46 override;47 48 bool CallFrameAddressIsValid(lldb::addr_t cfa) override {49 // Make sure the stack call frame addresses are 8 byte aligned50 if (cfa & (8ull - 1ull))51 return false; // Not 8 byte aligned52 if (cfa == 0)53 return false; // Zero is not a valid stack address54 return true;55 }56 57 bool CodeAddressIsValid(lldb::addr_t pc) override {58 // Code addressed must be 2 byte aligned59 return (pc & 1ull) == 0;60 }61 62 const lldb_private::RegisterInfo *63 GetRegisterInfoArray(uint32_t &count) override;64 65 // Static Functions66 67 static void Initialize();68 69 static void Terminate();70 71 static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp, const lldb_private::ArchSpec &arch);72 73 static llvm::StringRef GetPluginNameStatic() { return "sysv-s390x"; }74 75 // PluginInterface protocol76 77 llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }78 79protected:80 void CreateRegisterMapIfNeeded();81 82 lldb::ValueObjectSP83 GetReturnValueObjectSimple(lldb_private::Thread &thread,84 lldb_private::CompilerType &ast_type) const;85 86 bool RegisterIsCalleeSaved(const lldb_private::RegisterInfo *reg_info);87 88private:89 using lldb_private::RegInfoBasedABI::RegInfoBasedABI; // Call CreateInstance instead.90};91 92#endif // LLDB_SOURCE_PLUGINS_ABI_SYSTEMZ_ABISYSV_S390X_H93