1 | //===-- llvm/MC/MCFixupKindInfo.h - Fixup Descriptors -----------*- 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_MC_MCFIXUPKINDINFO_H |
10 | #define LLVM_MC_MCFIXUPKINDINFO_H |
11 | |
12 | namespace llvm { |
13 | |
14 | /// Target independent information on a fixup kind. |
15 | struct MCFixupKindInfo { |
16 | enum FixupKindFlags { |
17 | /// Is this fixup kind PCrelative? This is used by the assembler backend to |
18 | /// evaluate fixup values in a target independent manner when possible. |
19 | FKF_IsPCRel = (1 << 0), |
20 | |
21 | /// Should this fixup kind force a 4-byte aligned effective PC value? |
22 | FKF_IsAlignedDownTo32Bits = (1 << 1), |
23 | |
24 | /// Should this fixup be evaluated in a target dependent manner? |
25 | FKF_IsTarget = (1 << 2), |
26 | |
27 | /// This fixup kind should be resolved if defined. |
28 | /// FIXME This is a workaround because we don't support certain ARM |
29 | /// relocation types. This flag should eventually be removed. |
30 | FKF_Constant = 1 << 3, |
31 | }; |
32 | |
33 | /// A target specific name for the fixup kind. The names will be unique for |
34 | /// distinct kinds on any given target. |
35 | const char *Name; |
36 | |
37 | /// The bit offset to write the relocation into. |
38 | unsigned TargetOffset; |
39 | |
40 | /// The number of bits written by this fixup. The bits are assumed to be |
41 | /// contiguous. |
42 | unsigned TargetSize; |
43 | |
44 | /// Flags describing additional information on this fixup kind. |
45 | unsigned Flags; |
46 | }; |
47 | |
48 | } // End llvm namespace |
49 | |
50 | #endif |
51 | |