1 //===-- AArch64FixupKinds.h - AArch64 Specific Fixup Entries ----*- 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_LIB_TARGET_AARCH64_MCTARGETDESC_AARCH64FIXUPKINDS_H
11 #define LLVM_LIB_TARGET_AARCH64_MCTARGETDESC_AARCH64FIXUPKINDS_H
12 
13 #include "llvm/MC/MCFixup.h"
14 
15 namespace llvm {
16 namespace AArch64 {
17 
18 enum Fixups {
19   // fixup_aarch64_pcrel_adr_imm21 - A 21-bit pc-relative immediate inserted into
20   // an ADR instruction.
21   fixup_aarch64_pcrel_adr_imm21 = FirstTargetFixupKind,
22 
23   // fixup_aarch64_pcrel_adrp_imm21 - A 21-bit pc-relative immediate inserted into
24   // an ADRP instruction.
25   fixup_aarch64_pcrel_adrp_imm21,
26 
27   // fixup_aarch64_imm12 - 12-bit fixup for add/sub instructions.
28   //     No alignment adjustment. All value bits are encoded.
29   fixup_aarch64_add_imm12,
30 
31   // fixup_aarch64_ldst_imm12_* - unsigned 12-bit fixups for load and
32   // store instructions.
33   fixup_aarch64_ldst_imm12_scale1,
34   fixup_aarch64_ldst_imm12_scale2,
35   fixup_aarch64_ldst_imm12_scale4,
36   fixup_aarch64_ldst_imm12_scale8,
37   fixup_aarch64_ldst_imm12_scale16,
38 
39   // fixup_aarch64_ldr_pcrel_imm19 - The high 19 bits of a 21-bit pc-relative
40   // immediate. Same encoding as fixup_aarch64_pcrel_adrhi, except this is used by
41   // pc-relative loads and generates relocations directly when necessary.
42   fixup_aarch64_ldr_pcrel_imm19,
43 
44   // FIXME: comment
45   fixup_aarch64_movw,
46 
47   // fixup_aarch64_pcrel_imm14 - The high 14 bits of a 21-bit pc-relative
48   // immediate.
49   fixup_aarch64_pcrel_branch14,
50 
51   // fixup_aarch64_pcrel_branch19 - The high 19 bits of a 21-bit pc-relative
52   // immediate. Same encoding as fixup_aarch64_pcrel_adrhi, except this is use by
53   // b.cc and generates relocations directly when necessary.
54   fixup_aarch64_pcrel_branch19,
55 
56   // fixup_aarch64_pcrel_branch26 - The high 26 bits of a 28-bit pc-relative
57   // immediate.
58   fixup_aarch64_pcrel_branch26,
59 
60   // fixup_aarch64_pcrel_call26 - The high 26 bits of a 28-bit pc-relative
61   // immediate. Distinguished from branch26 only on ELF.
62   fixup_aarch64_pcrel_call26,
63 
64   // fixup_aarch64_tlsdesc_call - zero-space placeholder for the ELF
65   // R_AARCH64_TLSDESC_CALL relocation.
66   fixup_aarch64_tlsdesc_call,
67 
68   // Marker
69   LastTargetFixupKind,
70   NumTargetFixupKinds = LastTargetFixupKind - FirstTargetFixupKind
71 };
72 
73 } // end namespace AArch64
74 } // end namespace llvm
75 
76 #endif
77