1 // aarch64-reloc.def -- AArch64 relocation definitions. 2 3 // Copyright (C) 2014-2016 Free Software Foundation, Inc. 4 // Written by Han Shen <shenhan (a] google.com> and Jing Yu <jingyu (a] google.com>. 5 6 // This file is part of gold. 7 8 // This program is free software; you can redistribute it and/or modify 9 // it under the terms of the GNU General Public License as published by 10 // the Free Software Foundation; either version 3 of the License, or 11 // (at your option) any later version. 12 13 // This program is distributed in the hope that it will be useful, 14 // but WITHOUT ANY WARRANTY; without even the implied warranty of 15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 // GNU General Public License for more details. 17 18 // You should have received a copy of the GNU General Public License 19 // along with this program; if not, write to the Free Software 20 // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 21 // MA 02110-1301, USA. 22 // 23 // 24 // 25 // Insn modified by relocation, see enum Reloc_inst -------------------------------------------------------------------------------------------------+ 26 // Symbol reference type -----------------------------------------------------------------------------+ | 27 // Portion off X to retrieve -------------------------------------------------------------------+ | | 28 // Checking function, see Note(A)---------------------------------------+ | | | 29 // Group index---------------------------------------------------+ | | | | 30 // Implemented----------------------------------------------+ | | | | | 31 // Class-------------------------------------+ | | | | | | 32 // Type----------------------------+ | | | | | | | 33 // Name | | | | | | | | 34 // | | | | | | | | | 35 ARD(NONE , STATIC , NONE , Y, -1, 0,0 , 0,0 , 0 , DATA ) 36 // Above is from Table 4-5, Null relocation codes 37 38 ARD(ABS64 , STATIC , DATA , Y, -1, 0,0 , 0,0 , Symbol::ABSOLUTE_REF , DATA ) 39 ARD(ABS32 , STATIC , DATA , Y, -1, 31,32 , 0,0 , Symbol::ABSOLUTE_REF , DATA ) 40 ARD(ABS16 , STATIC , DATA , Y, -1, 15,16 , 0,0 , Symbol::ABSOLUTE_REF , DATA ) 41 ARD(PREL64 , STATIC , DATA , Y, -1, 0,0 , 0,0 , Symbol::RELATIVE_REF , DATA ) 42 ARD(PREL32 , STATIC , DATA , Y, -1, 31,32 , 0,0 , Symbol::RELATIVE_REF , DATA ) 43 ARD(PREL16 , STATIC , DATA , Y, -1, 15,16 , 0,0 , Symbol::RELATIVE_REF , DATA ) 44 // Above is from Table 4-6, Data relocations, 257-262. 45 46 ARD(LD_PREL_LO19 , STATIC , AARCH64 , Y, -1, 20,20 , 2,20 , Symbol::RELATIVE_REF , LDST ) 47 ARD(ADR_PREL_LO21 , STATIC , AARCH64 , Y, -1, 20,20 , 0,20 , Symbol::RELATIVE_REF , ADR ) 48 ARD(ADR_PREL_PG_HI21 , STATIC , AARCH64 , Y, -1, 32,32 , 12,32 , Symbol::RELATIVE_REF , ADRP ) 49 ARD(ADR_PREL_PG_HI21_NC , STATIC , AARCH64 , Y, -1, 0,0 , 12,32 , Symbol::RELATIVE_REF , ADRP ) 50 ARD(ADD_ABS_LO12_NC , STATIC , AARCH64 , Y, -1, 0,0 , 0,11 , Symbol::ABSOLUTE_REF , ADD ) 51 ARD(LDST8_ABS_LO12_NC , STATIC , AARCH64 , Y, -1, 0,0 , 0,11 , Symbol::ABSOLUTE_REF , LDST ) 52 ARD(LDST16_ABS_LO12_NC , STATIC , AARCH64 , Y, -1, 0,RL_CHECK_ALIGN2 , 1,11 , Symbol::ABSOLUTE_REF , LDST ) 53 ARD(LDST32_ABS_LO12_NC , STATIC , AARCH64 , Y, -1, 0,RL_CHECK_ALIGN4 , 2,11 , Symbol::ABSOLUTE_REF , LDST ) 54 ARD(LDST64_ABS_LO12_NC , STATIC , AARCH64 , Y, -1, 0,RL_CHECK_ALIGN8 , 3,11 , Symbol::ABSOLUTE_REF , LDST ) 55 ARD(LDST128_ABS_LO12_NC , STATIC , AARCH64 , Y, -1, 0,RL_CHECK_ALIGN16 , 4,11 , Symbol::ABSOLUTE_REF , LDST ) 56 // Above 10 relocs are from Table 4-9, Relocations to generate 19, 21 and 33 bit PC-relative addresses. 57 58 ARD(ADR_GOT_PAGE , STATIC , AARCH64 , Y, -1, 32,32 , 12,32 , Symbol::RELATIVE_REF , ADRP ) 59 ARD(LD64_GOT_LO12_NC , STATIC , AARCH64 , Y, -1, 0,RL_CHECK_ALIGN8 , 3,11 , Symbol::ABSOLUTE_REF , LDST ) 60 ARD(LD64_GOTPAGE_LO15 , STATIC , AARCH64 , Y, -1, 0,15 , 3,14 , Symbol::RELATIVE_REF , LDST ) 61 // Above 2 relocs are from Table 4-14, GOT-relative instruction relocations. (Some relocs in the table are not implemented yet.) 62 63 ARD(TSTBR14 , STATIC , CFLOW , N, -1, 15,15 , 2,15 , (Symbol::FUNCTION_CALL|Symbol::ABSOLUTE_REF) , TBZNZ ) 64 ARD(CONDBR19 , STATIC , CFLOW , N, -1, 20,20 , 2,20 , (Symbol::FUNCTION_CALL|Symbol::ABSOLUTE_REF) , CONDB ) 65 ARD(CALL26 , STATIC , CFLOW , Y, -1, 27,27 , 2,27 , (Symbol::FUNCTION_CALL|Symbol::RELATIVE_REF) , CALL ) 66 ARD(JUMP26 , STATIC , CFLOW , Y, -1, 27,27 , 2,27 , (Symbol::FUNCTION_CALL|Symbol::RELATIVE_REF) , B ) 67 // Above is from Table 4-10, Relocations for control-flow instructions, 68 // 279-283. 69 70 ARD(TLSGD_ADR_PAGE21 , STATIC , AARCH64 , Y, -1, 32,32 , 12,32 , Symbol::TLS_REF , ADRP ) 71 ARD(TLSGD_ADD_LO12_NC , STATIC , AARCH64 , Y, -1, 0,0 , 0,11 , Symbol::TLS_REF , ADD ) 72 // Above is from Table 4-15, General Dynamic TLS relocations, 512-516. 73 74 ARD(TLSLD_ADR_PAGE21 , STATIC , AARCH64 , Y, -1, 32,32 , 12,32 , Symbol::TLS_REF , ADRP ) 75 ARD(TLSLD_ADD_LO12_NC , STATIC , AARCH64 , Y, -1, 0,0 , 0,11 , Symbol::TLS_REF , ADD ) 76 ARD(TLSLD_MOVW_DTPREL_G1 , STATIC , AARCH64 , Y, 1, 32,32 , 16,31 , Symbol::TLS_REF , ADRP ) 77 ARD(TLSLD_MOVW_DTPREL_G0_NC , STATIC , AARCH64 , Y, 0, 0,0 , 0,15 , Symbol::TLS_REF , MOVW ) 78 ARD(TLSLD_ADD_DTPREL_HI12 , STATIC , AARCH64 , Y, -1, 0,24 , 12,23 , Symbol::TLS_REF , ADD ) 79 ARD(TLSLD_ADD_DTPREL_LO12_NC , STATIC , AARCH64 , Y, -1, 0,0 , 0,11 , Symbol::TLS_REF , ADD ) 80 // Above is from Table 4-16, Local Dynamic TLS relocations, 517-573. 81 82 ARD(TLSIE_MOVW_GOTTPREL_G1 , STATIC , AARCH64 , N, -1, 32,32 , 16,31 , Symbol::TLS_REF , MOVW ) 83 ARD(TLSIE_MOVW_GOTTPREL_G0_NC , STATIC , AARCH64 , N, -1, 0,0 , 0,15 , Symbol::TLS_REF , MOVW ) 84 ARD(TLSIE_ADR_GOTTPREL_PAGE21 , STATIC , AARCH64 , Y, -1, 32,32 , 12,32 , Symbol::TLS_REF , ADRP ) 85 ARD(TLSIE_LD64_GOTTPREL_LO12_NC , STATIC , AARCH64 , Y, -1, 0,RL_CHECK_ALIGN8 , 3,11 , Symbol::TLS_REF , LDST ) 86 ARD(TLSIE_LD_GOTTPREL_PREL19 , STATIC , AARCH64 , N, -1, 20,20 , 2,20 , Symbol::TLS_REF , LD ) 87 // Above is from Table 4-17, Initial Exec TLS relocations, 539-543. 88 89 ARD(TLSLE_MOVW_TPREL_G2 , STATIC , AARCH64 , Y, 2, 48,48 , 32,47 , Symbol::TLS_REF , MOVW ) 90 ARD(TLSLE_MOVW_TPREL_G1 , STATIC , AARCH64 , Y, 1, 32,32 , 16,31 , Symbol::TLS_REF , MOVW ) 91 ARD(TLSLE_MOVW_TPREL_G1_NC , STATIC , AARCH64 , Y, 1, 0,0 , 16,31 , Symbol::TLS_REF , MOVW ) 92 ARD(TLSLE_MOVW_TPREL_G0 , STATIC , AARCH64 , Y, 0, 16,16 , 0,15 , Symbol::TLS_REF , MOVW ) 93 ARD(TLSLE_MOVW_TPREL_G0_NC , STATIC , AARCH64 , Y, 0, 0,0 , 0,15 , Symbol::TLS_REF , MOVW ) 94 ARD(TLSLE_ADD_TPREL_HI12 , STATIC , AARCH64 , Y, -1, 0,24 , 12,23 , Symbol::TLS_REF , ADD ) 95 ARD(TLSLE_ADD_TPREL_LO12 , STATIC , AARCH64 , Y, -1, 0,12 , 0,11 , Symbol::TLS_REF , ADD ) 96 ARD(TLSLE_ADD_TPREL_LO12_NC , STATIC , AARCH64 , Y, -1, 0,0 , 0,11 , Symbol::TLS_REF , ADD ) 97 // Above is from Table 4-18, Local Exec TLS relocations, 544-571. 98 99 ARD(TLSDESC_ADR_PAGE21 , STATIC , AARCH64 , Y, -1, 32,32 , 12,32 , Symbol::TLS_REF , ADRP ) 100 ARD(TLSDESC_LD64_LO12 , STATIC , AARCH64 , Y, -1, 0,RL_CHECK_ALIGN8 , 3,11 , Symbol::TLS_REF , LDST ) 101 ARD(TLSDESC_ADD_LO12 , STATIC , AARCH64 , Y, -1, 0,0 , 0,11 , Symbol::TLS_REF , ADD ) 102 ARD(TLSDESC_CALL , STATIC , CFLOW , Y, -1, 0,0 , 0,0 , Symbol::TLS_REF , CALL ) 103 // Above is from Table 4-19, TLS descriptor relocations, 560-569. 104 105 // Note - 106 // A - Checking X, (L,U), if L == 0 && U == 0, no check. Otherwise, L!=0, 107 // check that -2^L<=X<2^U. Also an extra alignment check could be embeded 108 // into U. 109
