1 //===- AArch64ErrataFix.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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLD_ELF_AARCH64ERRATAFIX_H 10 #define LLD_ELF_AARCH64ERRATAFIX_H 11 12 #include "lld/Common/LLVM.h" 13 #include "llvm/ADT/DenseMap.h" 14 #include <vector> 15 16 namespace lld::elf { 17 struct Ctx; 18 class Defined; 19 class InputSection; 20 class InputSectionDescription; 21 class Patch843419Section; 22 23 class AArch64Err843419Patcher { 24 public: 25 AArch64Err843419Patcher(Ctx &ctx) : ctx(ctx) {} 26 // return true if Patches have been added to the OutputSections. 27 bool createFixes(); 28 29 private: 30 std::vector<Patch843419Section *> 31 patchInputSectionDescription(InputSectionDescription &isd); 32 33 void insertPatches(InputSectionDescription &isd, 34 std::vector<Patch843419Section *> &patches); 35 36 void init(); 37 38 Ctx &ctx; 39 // A cache of the mapping symbols defined by the InputSection sorted in order 40 // of ascending value with redundant symbols removed. These describe 41 // the ranges of code and data in an executable InputSection. 42 llvm::DenseMap<InputSection *, std::vector<const Defined *>> sectionMap; 43 44 bool initialized = false; 45 }; 46 47 } // namespace lld::elf 48 49 #endif 50