MCFixupKindInfo.h revision 1d6547eb49ef46d2606810f0abad2570c41e38bd 
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
13namespace llvm {
14
15/// MCFixupKindInfo - Target independent information on a fixup kind.
16struct 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