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1 //===-- llvm/MC/MCFixupKindInfo.h - Fixup Descriptors -----------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #ifndef LLVM_MC_MCFIXUPKINDINFO_H
11 #define LLVM_MC_MCFIXUPKINDINFO_H
12 
13 namespace llvm {
14 
15 /// \brief Target independent information on a fixup kind.
16 struct MCFixupKindInfo {
17   enum FixupKindFlags {
18     /// Is this fixup kind PCrelative? This is used by the assembler backend to
19     /// evaluate fixup values in a target independent manner when possible.
20     FKF_IsPCRel = (1 << 0),
21 
22     /// Should this fixup kind force a 4-byte aligned effective PC value?
23     FKF_IsAlignedDownTo32Bits = (1 << 1)
24   };
25 
26   /// A target specific name for the fixup kind. The names will be unique for
27   /// distinct kinds on any given target.
28   const char *Name;
29 
30   /// The bit offset to write the relocation into.
31   unsigned TargetOffset;
32 
33   /// The number of bits written by this fixup. The bits are assumed to be
34   /// contiguous.
35   unsigned TargetSize;
36 
37   /// Flags describing additional information on this fixup kind.
38   unsigned Flags;
39 };
40 
41 } // End llvm namespace
42 
43 #endif
44