LLVM  10.0.0svn
RuntimeDyldELFMips.h
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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 
17 namespace llvm {
18 
20 public:
21 
22  typedef uint64_t TargetPtrT;
23 
26  : RuntimeDyldELF(MM, Resolver) {}
27 
28  void resolveRelocation(const RelocationEntry &RE, uint64_t Value) override;
29 
30 protected:
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 
40 private:
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
RuntimeDyldELFMips(RuntimeDyld::MemoryManager &MM, JITSymbolResolver &Resolver)
RelocationEntry - used to represent relocations internally in the dynamic linker. ...
This class represents lattice values for constants.
Definition: AllocatorList.h:23
void resolveRelocation(const RelocationEntry &RE, uint64_t Value) override
A object file specific relocation resolver.
The instances of the Type class are immutable: once they are created, they are never changed...
Definition: Type.h:46
Interface for looking up the initializer for a variable name, used by Init::resolveReferences.
Definition: Record.h:1864
Symbol resolution interface.
Definition: JITSymbol.h:325
void resolveMIPSN32Relocation(const SectionEntry &Section, uint64_t Offset, uint64_t Value, uint32_t Type, int64_t Addend, uint64_t SymOffset, SID SectionID)
void resolveMIPSN64Relocation(const SectionEntry &Section, uint64_t Offset, uint64_t Value, uint32_t Type, int64_t Addend, uint64_t SymOffset, SID SectionID)
void resolveMIPSO32Relocation(const SectionEntry &Section, uint64_t Offset, uint32_t Value, uint32_t Type, int32_t Addend)
SectionEntry - represents a section emitted into memory by the dynamic linker.
LLVM Value Representation.
Definition: Value.h:74