Coverage Report

Created: 2022-01-22 13:19

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