| //===-- ABISysV_arm.h ----------------------------------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLDB_SOURCE_PLUGINS_ABI_ARM_ABISYSV_ARM_H |
| #define LLDB_SOURCE_PLUGINS_ABI_ARM_ABISYSV_ARM_H |
| |
| #include "lldb/Target/ABI.h" |
| #include "lldb/lldb-private.h" |
| |
| class ABISysV_arm : public lldb_private::RegInfoBasedABI { |
| public: |
| ~ABISysV_arm() override = default; |
| |
| size_t GetRedZoneSize() const override; |
| |
| bool PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp, |
| lldb::addr_t func_addr, lldb::addr_t returnAddress, |
| llvm::ArrayRef<lldb::addr_t> args) const override; |
| |
| bool GetArgumentValues(lldb_private::Thread &thread, |
| lldb_private::ValueList &values) const override; |
| |
| lldb_private::Status |
| SetReturnValueObject(lldb::StackFrameSP &frame_sp, |
| lldb::ValueObjectSP &new_value) override; |
| |
| bool |
| CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override; |
| |
| bool CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override; |
| |
| bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override; |
| |
| bool CallFrameAddressIsValid(lldb::addr_t cfa) override { |
| // Make sure the stack call frame addresses are are 4 byte aligned |
| if (cfa & (4ull - 1ull)) |
| return false; // Not 4 byte aligned |
| if (cfa == 0) |
| return false; // Zero is not a valid stack address |
| return true; |
| } |
| |
| bool CodeAddressIsValid(lldb::addr_t pc) override { |
| // Just make sure the address is a valid 32 bit address. Bit zero |
| // might be set due to Thumb function calls, so don't enforce 2 byte |
| // alignment |
| return pc <= UINT32_MAX; |
| } |
| |
| lldb::addr_t FixCodeAddress(lldb::addr_t pc) override { |
| // ARM uses bit zero to signify a code address is thumb, so we must |
| // strip bit zero in any code addresses. |
| return pc & ~(lldb::addr_t)1; |
| } |
| |
| const lldb_private::RegisterInfo * |
| GetRegisterInfoArray(uint32_t &count) override; |
| |
| bool IsArmHardFloat(lldb_private::Thread &thread) const; |
| |
| // Static Functions |
| |
| static void Initialize(); |
| |
| static void Terminate(); |
| |
| static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp, const lldb_private::ArchSpec &arch); |
| |
| static llvm::StringRef GetPluginNameStatic() { return "SysV-arm"; } |
| |
| // PluginInterface protocol |
| |
| llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); } |
| |
| protected: |
| lldb::ValueObjectSP |
| GetReturnValueObjectImpl(lldb_private::Thread &thread, |
| lldb_private::CompilerType &ast_type) const override; |
| |
| private: |
| using lldb_private::RegInfoBasedABI::RegInfoBasedABI; // Call CreateInstance instead. |
| }; |
| |
| #endif // LLDB_SOURCE_PLUGINS_ABI_ARM_ABISYSV_ARM_H |