1 //===-- AArch64FixupKinds.h - AArch64 Specific Fixup Entries ----*- 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_TARGET_AARCH64_MCTARGETDESC_AARCH64FIXUPKINDS_H 10 #define LLVM_LIB_TARGET_AARCH64_MCTARGETDESC_AARCH64FIXUPKINDS_H 11 12 #include "llvm/MC/MCFixup.h" 13 14 namespace llvm { 15 namespace AArch64 { 16 17 enum Fixups { 18 // A 21-bit pc-relative immediate inserted into an ADR instruction. 19 fixup_aarch64_pcrel_adr_imm21 = FirstTargetFixupKind, 20 21 // A 21-bit pc-relative immediate inserted into an ADRP instruction. 22 fixup_aarch64_pcrel_adrp_imm21, 23 24 // 12-bit fixup for add/sub instructions. No alignment adjustment. All value 25 // bits are encoded. 26 fixup_aarch64_add_imm12, 27 28 // unsigned 12-bit fixups for load and store instructions. 29 fixup_aarch64_ldst_imm12_scale1, 30 fixup_aarch64_ldst_imm12_scale2, 31 fixup_aarch64_ldst_imm12_scale4, 32 fixup_aarch64_ldst_imm12_scale8, 33 fixup_aarch64_ldst_imm12_scale16, 34 35 // The high 19 bits of a 21-bit pc-relative immediate. Same encoding as 36 // fixup_aarch64_pcrel_adrhi, except this is used by pc-relative loads and 37 // generates relocations directly when necessary. 38 fixup_aarch64_ldr_pcrel_imm19, 39 40 // FIXME: comment 41 fixup_aarch64_movw, 42 43 // The high 14 bits of a 21-bit pc-relative immediate. 44 fixup_aarch64_pcrel_branch14, 45 46 // The high 16 bits of a 18-bit unsigned PC-relative immediate. Used by 47 // pointer authentication, only within a function, so no relocation can be 48 // generated. 49 fixup_aarch64_pcrel_branch16, 50 51 // The high 19 bits of a 21-bit pc-relative immediate. Same encoding as 52 // fixup_aarch64_pcrel_adrhi, except this is use by b.cc and generates 53 // relocations directly when necessary. 54 fixup_aarch64_pcrel_branch19, 55 56 // The high 26 bits of a 28-bit pc-relative immediate. 57 fixup_aarch64_pcrel_branch26, 58 59 // The high 26 bits of a 28-bit pc-relative immediate. Distinguished from 60 // branch26 only on ELF. 61 fixup_aarch64_pcrel_call26, 62 63 // Marker 64 LastTargetFixupKind, 65 NumTargetFixupKinds = LastTargetFixupKind - FirstTargetFixupKind 66 }; 67 68 } // end namespace AArch64 69 } // end namespace llvm 70 71 #endif 72