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 19 bits of a 21-bit pc-relative immediate. Same encoding as 47 // fixup_aarch64_pcrel_adrhi, except this is use by b.cc and generates 48 // relocations directly when necessary. 49 fixup_aarch64_pcrel_branch19, 50 51 // The high 26 bits of a 28-bit pc-relative immediate. 52 fixup_aarch64_pcrel_branch26, 53 54 // The high 26 bits of a 28-bit pc-relative immediate. Distinguished from 55 // branch26 only on ELF. 56 fixup_aarch64_pcrel_call26, 57 58 // zero-space placeholder for the ELF R_AARCH64_TLSDESC_CALL relocation. 59 fixup_aarch64_tlsdesc_call, 60 61 // Marker 62 LastTargetFixupKind, 63 NumTargetFixupKinds = LastTargetFixupKind - FirstTargetFixupKind 64 }; 65 66 } // end namespace AArch64 67 } // end namespace llvm 68 69 #endif 70