1//===-- RuntimeDyldELFMips.h ---- ELF/Mips specific code. -------*- 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 LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_TARGETS_RUNTIMEDYLDELFMIPS_H
10#define LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_TARGETS_RUNTIMEDYLDELFMIPS_H
11
12#include "../RuntimeDyldELF.h"
13#include <string>
14
15#define DEBUG_TYPE "dyld"
16
17namespace llvm {
18
19class RuntimeDyldELFMips : public RuntimeDyldELF {
20public:
21
22  typedef uint64_t TargetPtrT;
23
24  RuntimeDyldELFMips(RuntimeDyld::MemoryManager &MM,
25                     JITSymbolResolver &Resolver)
26      : RuntimeDyldELF(MM, Resolver) {}
27
28  void resolveRelocation(const RelocationEntry &RE, uint64_t Value) override;
29
30protected:
31  void resolveMIPSO32Relocation(const SectionEntry &Section, uint64_t Offset,
32                                uint32_t Value, uint32_t Type, int32_t Addend);
33  void resolveMIPSN32Relocation(const SectionEntry &Section, uint64_t Offset,
34                                uint64_t Value, uint32_t Type, int64_t Addend,
35                                uint64_t SymOffset, SID SectionID);
36  void resolveMIPSN64Relocation(const SectionEntry &Section, uint64_t Offset,
37                                uint64_t Value, uint32_t Type, int64_t Addend,
38                                uint64_t SymOffset, SID SectionID);
39
40private:
41  /// A object file specific relocation resolver
42  /// \param RE The relocation to be resolved
43  /// \param Value Target symbol address to apply the relocation action
44  uint64_t evaluateRelocation(const RelocationEntry &RE, uint64_t Value,
45                              uint64_t Addend);
46
47  /// A object file specific relocation resolver
48  /// \param RE The relocation to be resolved
49  /// \param Value Target symbol address to apply the relocation action
50  void applyRelocation(const RelocationEntry &RE, uint64_t Value);
51
52  int64_t evaluateMIPS32Relocation(const SectionEntry &Section, uint64_t Offset,
53                                   uint64_t Value, uint32_t Type);
54  int64_t evaluateMIPS64Relocation(const SectionEntry &Section,
55                                   uint64_t Offset, uint64_t Value,
56                                   uint32_t Type,  int64_t Addend,
57                                   uint64_t SymOffset, SID SectionID);
58
59  void applyMIPSRelocation(uint8_t *TargetPtr, int64_t CalculatedValue,
60                           uint32_t Type);
61
62};
63}
64
65#undef DEBUG_TYPE
66
67#endif
68