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 <map>
  15 #include <vector>
  16
  17 namespace lld {
  18 namespace elf {
  19
  20 class Defined;
  21 class InputSection;
  22 class InputSectionDescription;
  23 class OutputSection;
  24 class Patch657417Section;
  25
  26 class ARMErr657417Patcher {
  27 public:
  28   // Return true if Patches have been added to the OutputSections.
  29   bool createFixes();
  30
  31 private:
  32   std::vector<Patch657417Section *>
  33   patchInputSectionDescription(InputSectionDescription &isd);
  34
  35   void insertPatches(InputSectionDescription &isd,
  36                      std::vector<Patch657417Section *> &patches);
  37
  38   void init();
  39
  40   // A cache of the mapping symbols defined by the InputSection sorted in order
  41   // of ascending value with redundant symbols removed. These describe
  42   // the ranges of code and data in an executable InputSection.
  43   llvm::DenseMap<InputSection *, std::vector<const Defined *>> sectionMap;
  44
  45   bool initialized = false;
  46 };
  47
  48 } // namespace elf
  49 } // namespace lld
  50
  51 #endif