1//===-- ABISysV_hexagon.h ----------------------------------------*- C++ 2//-*-===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef LLDB_SOURCE_PLUGINS_ABI_HEXAGON_ABISYSV_HEXAGON_H 11#define LLDB_SOURCE_PLUGINS_ABI_HEXAGON_ABISYSV_HEXAGON_H 12 13#include "lldb/Target/ABI.h" 14#include "lldb/lldb-private.h" 15 16class ABISysV_hexagon : public lldb_private::RegInfoBasedABI { 17public: 18 ~ABISysV_hexagon() override = default; 19 20 size_t GetRedZoneSize() const override; 21 22 bool PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp, 23 lldb::addr_t functionAddress, 24 lldb::addr_t returnAddress, 25 llvm::ArrayRef<lldb::addr_t> args) const override; 26 27 // special thread plan for GDB style non-jit function calls 28 bool 29 PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp, 30 lldb::addr_t functionAddress, lldb::addr_t returnAddress, 31 llvm::Type &prototype, 32 llvm::ArrayRef<ABI::CallArgument> args) const override; 33 34 bool GetArgumentValues(lldb_private::Thread &thread, 35 lldb_private::ValueList &values) const override; 36 37 lldb_private::Status 38 SetReturnValueObject(lldb::StackFrameSP &frame_sp, 39 lldb::ValueObjectSP &new_value) override; 40 41 lldb::ValueObjectSP 42 GetReturnValueObjectImpl(lldb_private::Thread &thread, 43 lldb_private::CompilerType &type) const override; 44 45 // specialized to work with llvm IR types 46 lldb::ValueObjectSP GetReturnValueObjectImpl(lldb_private::Thread &thread, 47 llvm::Type &type) const override; 48 49 bool 50 CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override; 51 52 bool CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override; 53 54 bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override; 55 56 bool CallFrameAddressIsValid(lldb::addr_t cfa) override { 57 // Make sure the stack call frame addresses are 8 byte aligned 58 if (cfa & 0x07) 59 return false; // Not 8 byte aligned 60 if (cfa == 0) 61 return false; // Zero is not a valid stack address 62 return true; 63 } 64 65 bool CodeAddressIsValid(lldb::addr_t pc) override { 66 // We have a 64 bit address space, so anything is valid as opcodes 67 // aren't fixed width... 68 return true; 69 } 70 71 const lldb_private::RegisterInfo * 72 GetRegisterInfoArray(uint32_t &count) override; 73 74 // Static Functions 75 76 static void Initialize(); 77 78 static void Terminate(); 79 80 static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp, const lldb_private::ArchSpec &arch); 81 82 static lldb_private::ConstString GetPluginNameStatic(); 83 84 // PluginInterface protocol 85 86 lldb_private::ConstString GetPluginName() override; 87 88 uint32_t GetPluginVersion() override; 89 90protected: 91 void CreateRegisterMapIfNeeded(); 92 93 lldb::ValueObjectSP 94 GetReturnValueObjectSimple(lldb_private::Thread &thread, 95 lldb_private::CompilerType &ast_type) const; 96 97 bool RegisterIsCalleeSaved(const lldb_private::RegisterInfo *reg_info); 98 99private: 100 using lldb_private::RegInfoBasedABI::RegInfoBasedABI; // Call CreateInstance instead. 101}; 102 103#endif // LLDB_SOURCE_PLUGINS_ABI_HEXAGON_ABISYSV_HEXAGON_H 104