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