gold/aarch64-reloc.def

   1 // aarch64-reloc.def -- AArch64 relocation definitions.
   2
   3 // Copyright (C) 2014-2017 Free Software Foundation, Inc.
   4 // Written by Han Shen <shenhan@google.com> and Jing Yu <jingyu@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(MOVW_UABS_G0                 , STATIC ,  AARCH64    ,   Y,   0,    0,16               ,    0,15 , Symbol::ABSOLUTE_REF ,                         MOVW  )
  47 ARD(MOVW_UABS_G0_NC              , STATIC ,  AARCH64    ,   Y,   0,    0,0                ,    0,15 , Symbol::ABSOLUTE_REF ,                         MOVW  )
  48 ARD(MOVW_UABS_G1                 , STATIC ,  AARCH64    ,   Y,   0,    0,32               ,   16,31 , Symbol::ABSOLUTE_REF ,                         MOVW  )
  49 ARD(MOVW_UABS_G1_NC              , STATIC ,  AARCH64    ,   Y,   0,    0,0                ,   16,31 , Symbol::ABSOLUTE_REF ,                         MOVW  )
  50 ARD(MOVW_UABS_G2                 , STATIC ,  AARCH64    ,   Y,   0,    0,48               ,   32,47 , Symbol::ABSOLUTE_REF ,                         MOVW  )
  51 ARD(MOVW_UABS_G2_NC              , STATIC ,  AARCH64    ,   Y,   0,    0,0                ,   32,47 , Symbol::ABSOLUTE_REF ,                         MOVW  )
  52 ARD(MOVW_UABS_G3                 , STATIC ,  AARCH64    ,   Y,   0,    0,0                ,   48,63 , Symbol::ABSOLUTE_REF ,                         MOVW  )
  53 // Above is from Table 4-7, Group relocations to create a 16-, 32-, 48-, or 64-bit unsigned data value or address inline.
  54
  55 ARD(MOVW_SABS_G0                 , STATIC ,  AARCH64    ,   Y,   0,   16,16               ,    0,15 , Symbol::ABSOLUTE_REF ,                         MOVW  )
  56 ARD(MOVW_SABS_G1                 , STATIC ,  AARCH64    ,   Y,   0,   32,32               ,   16,31 , Symbol::ABSOLUTE_REF ,                         MOVW  )
  57 ARD(MOVW_SABS_G2                 , STATIC ,  AARCH64    ,   Y,   0,   48,48               ,   32,47 , Symbol::ABSOLUTE_REF ,                         MOVW  )
  58 // Above is from Table 4-8, Group relocations to create a 16, 32, 48, or 64 bit signed data or offset value inline.
  59
  60 ARD(LD_PREL_LO19                 , STATIC ,  AARCH64    ,   Y,  -1,   20,20               ,    2,20 , Symbol::RELATIVE_REF ,                         LDST  )
  61 ARD(ADR_PREL_LO21                , STATIC ,  AARCH64    ,   Y,  -1,   20,20               ,    0,20 , Symbol::RELATIVE_REF ,                         ADR   )
  62 ARD(ADR_PREL_PG_HI21             , STATIC ,  AARCH64    ,   Y,  -1,   32,32               ,   12,32 , Symbol::RELATIVE_REF ,                         ADRP  )
  63 ARD(ADR_PREL_PG_HI21_NC          , STATIC ,  AARCH64    ,   Y,  -1,    0,0                ,   12,32 , Symbol::RELATIVE_REF ,                         ADRP  )
  64 ARD(ADD_ABS_LO12_NC              , STATIC ,  AARCH64    ,   Y,  -1,    0,0                ,    0,11 , Symbol::ABSOLUTE_REF ,                         ADD   )
  65 ARD(LDST8_ABS_LO12_NC            , STATIC ,  AARCH64    ,   Y,  -1,    0,0                ,    0,11 , Symbol::ABSOLUTE_REF ,                         LDST  )
  66 ARD(LDST16_ABS_LO12_NC           , STATIC ,  AARCH64    ,   Y,  -1,    0,RL_CHECK_ALIGN2  ,    1,11 , Symbol::ABSOLUTE_REF ,                         LDST  )
  67 ARD(LDST32_ABS_LO12_NC           , STATIC ,  AARCH64    ,   Y,  -1,    0,RL_CHECK_ALIGN4  ,    2,11 , Symbol::ABSOLUTE_REF ,                         LDST  )
  68 ARD(LDST64_ABS_LO12_NC           , STATIC ,  AARCH64    ,   Y,  -1,    0,RL_CHECK_ALIGN8  ,    3,11 , Symbol::ABSOLUTE_REF ,                         LDST  )
  69 ARD(LDST128_ABS_LO12_NC          , STATIC ,  AARCH64    ,   Y,  -1,    0,RL_CHECK_ALIGN16 ,    4,11 , Symbol::ABSOLUTE_REF ,                         LDST  )
  70 // Above 10 relocs are from Table 4-9, Relocations to generate 19, 21 and 33 bit PC-relative addresses.
  71
  72 ARD(ADR_GOT_PAGE                 , STATIC ,  AARCH64    ,   Y,  -1,   32,32               ,   12,32 , Symbol::RELATIVE_REF ,                         ADRP  )
  73 ARD(LD64_GOT_LO12_NC             , STATIC ,  AARCH64    ,   Y,  -1,    0,RL_CHECK_ALIGN8  ,    3,11 , Symbol::ABSOLUTE_REF ,                         LDST  )
  74 ARD(LD64_GOTPAGE_LO15            , STATIC ,  AARCH64    ,   Y,  -1,    0,15               ,    3,14 , Symbol::RELATIVE_REF ,                         LDST  )
  75 // Above 2 relocs are from Table 4-14, GOT-relative instruction relocations. (Some relocs in the table are not implemented yet.)
  76
  77 ARD(TSTBR14                      , STATIC ,  CFLOW      ,   N,  -1,   15,15               ,    2,15 , (Symbol::FUNCTION_CALL|Symbol::ABSOLUTE_REF) , TBZNZ )
  78 ARD(CONDBR19                     , STATIC ,  CFLOW      ,   N,  -1,   20,20               ,    2,20 , (Symbol::FUNCTION_CALL|Symbol::ABSOLUTE_REF) , CONDB )
  79 ARD(CALL26                       , STATIC ,  CFLOW      ,   Y,  -1,   27,27               ,    2,27 , (Symbol::FUNCTION_CALL|Symbol::RELATIVE_REF) , CALL  )
  80 ARD(JUMP26                       , STATIC ,  CFLOW      ,   Y,  -1,   27,27               ,    2,27 , (Symbol::FUNCTION_CALL|Symbol::RELATIVE_REF) , B     )
  81 // Above is from Table 4-10, Relocations for control-flow instructions,
  82 // 279-283.
  83
  84 ARD(TLSGD_ADR_PAGE21             , STATIC ,  AARCH64    ,   Y,  -1,   32,32               ,   12,32 , Symbol::TLS_REF ,                              ADRP  )
  85 ARD(TLSGD_ADD_LO12_NC            , STATIC ,  AARCH64    ,   Y,  -1,    0,0                ,    0,11 , Symbol::TLS_REF ,                              ADD   )
  86 // Above is from Table 4-15, General Dynamic TLS relocations, 512-516.
  87
  88 ARD(TLSLD_ADR_PAGE21             , STATIC ,  AARCH64    ,   Y,  -1,   32,32               ,   12,32 , Symbol::TLS_REF ,                              ADRP  )
  89 ARD(TLSLD_ADD_LO12_NC            , STATIC ,  AARCH64    ,   Y,  -1,    0,0                ,    0,11 , Symbol::TLS_REF ,                              ADD   )
  90 ARD(TLSLD_MOVW_DTPREL_G1         , STATIC ,  AARCH64    ,   Y,   1,   32,32               ,   16,31 , Symbol::TLS_REF ,                              ADRP  )
  91 ARD(TLSLD_MOVW_DTPREL_G0_NC      , STATIC ,  AARCH64    ,   Y,   0,    0,0                ,    0,15 , Symbol::TLS_REF ,                              MOVW  )
  92 ARD(TLSLD_ADD_DTPREL_HI12        , STATIC ,  AARCH64    ,   Y,  -1,    0,24               ,   12,23 , Symbol::TLS_REF ,                              ADD   )
  93 ARD(TLSLD_ADD_DTPREL_LO12_NC     , STATIC ,  AARCH64    ,   Y,  -1,    0,0                ,    0,11 , Symbol::TLS_REF ,                              ADD   )
  94 // Above is from Table 4-16, Local Dynamic TLS relocations, 517-573.
  95
  96 ARD(TLSIE_MOVW_GOTTPREL_G1       , STATIC ,  AARCH64    ,   N,  -1,   32,32               ,   16,31 , Symbol::TLS_REF ,                              MOVW  )
  97 ARD(TLSIE_MOVW_GOTTPREL_G0_NC    , STATIC ,  AARCH64    ,   N,  -1,    0,0                ,    0,15 , Symbol::TLS_REF ,                              MOVW  )
  98 ARD(TLSIE_ADR_GOTTPREL_PAGE21    , STATIC ,  AARCH64    ,   Y,  -1,   32,32               ,   12,32 , Symbol::TLS_REF ,                              ADRP  )
  99 ARD(TLSIE_LD64_GOTTPREL_LO12_NC  , STATIC ,  AARCH64    ,   Y,  -1,    0,RL_CHECK_ALIGN8  ,    3,11 , Symbol::TLS_REF ,                              LDST  )
 100 ARD(TLSIE_LD_GOTTPREL_PREL19     , STATIC ,  AARCH64    ,   N,  -1,   20,20               ,    2,20 , Symbol::TLS_REF ,                              LD    )
 101 // Above is from Table 4-17, Initial Exec TLS relocations, 539-543.
 102
 103 ARD(TLSLE_MOVW_TPREL_G2          , STATIC ,  AARCH64   ,    Y,   2,   48,48               ,   32,47 , Symbol::TLS_REF ,                              MOVW  )
 104 ARD(TLSLE_MOVW_TPREL_G1          , STATIC ,  AARCH64   ,    Y,   1,   32,32               ,   16,31 , Symbol::TLS_REF ,                              MOVW  )
 105 ARD(TLSLE_MOVW_TPREL_G1_NC       , STATIC ,  AARCH64   ,    Y,   1,    0,0                ,   16,31 , Symbol::TLS_REF ,                              MOVW  )
 106 ARD(TLSLE_MOVW_TPREL_G0          , STATIC ,  AARCH64   ,    Y,   0,   16,16               ,    0,15 , Symbol::TLS_REF ,                              MOVW  )
 107 ARD(TLSLE_MOVW_TPREL_G0_NC       , STATIC ,  AARCH64   ,    Y,   0,    0,0                ,    0,15 , Symbol::TLS_REF ,                              MOVW  )
 108 ARD(TLSLE_ADD_TPREL_HI12         , STATIC ,  AARCH64   ,    Y,  -1,    0,24               ,   12,23 , Symbol::TLS_REF ,                              ADD   )
 109 ARD(TLSLE_ADD_TPREL_LO12         , STATIC ,  AARCH64   ,    Y,  -1,    0,12               ,    0,11 , Symbol::TLS_REF ,                              ADD   )
 110 ARD(TLSLE_ADD_TPREL_LO12_NC      , STATIC ,  AARCH64   ,    Y,  -1,    0,0                ,    0,11 , Symbol::TLS_REF ,                              ADD   )
 111 // Above is from Table 4-18, Local Exec TLS relocations, 544-571.
 112
 113 ARD(TLSDESC_ADR_PAGE21           , STATIC ,  AARCH64   ,    Y,  -1,    32,32              ,   12,32 , Symbol::TLS_REF ,                              ADRP  )
 114 ARD(TLSDESC_LD64_LO12            , STATIC ,  AARCH64   ,    Y,  -1,    0,RL_CHECK_ALIGN8  ,    3,11 , Symbol::TLS_REF ,                              LDST  )
 115 ARD(TLSDESC_ADD_LO12             , STATIC ,  AARCH64   ,    Y,  -1,    0,0                ,    0,11 , Symbol::TLS_REF ,                              ADD   )
 116 ARD(TLSDESC_CALL                 , STATIC ,  CFLOW     ,    Y,  -1,    0,0                ,    0,0  , Symbol::TLS_REF ,                              CALL  )
 117 // Above is from Table 4-19, TLS descriptor relocations, 560-569.
 118
 119 // Note -
 120 // A - Checking X, (L,U), if L == 0 && U == 0, no check. Otherwise, L!=0,
 121 //     check that -2^L<=X<2^U. Also an extra alignment check could be embedded
 122 //     into U.