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
52