lld/ELF/ARMErrataFix.h

   1 //===- ARMErrataFix.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_ARMA8ERRATAFIX_H
  10 #define LLD_ELF_ARMA8ERRATAFIX_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 Patch657417Section;
  22
  23 class ARMErr657417Patcher {
  24 public:
  25   ARMErr657417Patcher(Ctx &ctx) : ctx(ctx) {}
  26   // Return true if Patches have been added to the OutputSections.
  27   bool createFixes();
  28
  29 private:
  30   std::vector<Patch657417Section *>
  31   patchInputSectionDescription(InputSectionDescription &isd);
  32
  33   void insertPatches(InputSectionDescription &isd,
  34                      std::vector<Patch657417Section *> &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