gold/arm-reloc.def

   1 // arm-reloc.def -- ARM relocation definitions.
   2
   3 // Copyright (C) 2010-2020 Free Software Foundation, Inc.
   4 // Written by Doug Kwan <dougkwan@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 // The information here is based on the official ARM document "ELF for ARM
  24 // Architecture" (Document number ARM IHI 0044C).  The first five columns of
  25 // the table below are derived from Table 4-8 in the ARM ELF document.  Each
  26 // relocation from Table 4-8 corresponds to one relocation definition in the
  27 // table below.  A relocation definition has the following information:
  28 //
  29 // Name: This is the name of the relocation without the "R_ARM_" prefix.
  30 //
  31 // Type: Relocation type.  There are four.
  32 //   - STATIC for static relocations processed by a static linker.
  33 //   - DYNAMIC for dynamic relocations processed by a dynamic linker.
  34 //   - PRIVATE for R_ARM_PRIVATE_<n> private relocation type.
  35 //   - OBSOLETE for old relocation types no longer used.
  36 //   We do not use DEPRECATED as a distinct type since we still have to
  37 //   handle deprecated relocations so we one of the types above.
  38 //
  39 // Deprecated:  Whether this is a deprecated relocation type.  The linker
  40 //   is expected to handle these though they should not be generated by fully
  41 //   conforming tool-chains.
  42 //
  43 // Operation: An expression specifying how the linker should perform a
  44 //   relocation.  If there is no operation or the operation cannot be
  45 //   specified, it is "NONE".
  46 //
  47 // Implemented: Whether this is implemented by the gold.
  48 //
  49 // Group_index: For a group relocation type, it is one of 0, 1 or 2.  For
  50 //   a non-group relocation type, it is -1.
  51 //
  52 // Overflow: Whether gold should check for overflow.  This is "No" by default
  53 //   for relocation types DYNAMIC, PRIVATE and OBSOLETE.
  54 //
  55 // Overflow-----------------------------------------------------------------+
  56 // Group index----------------------------------------------------------+   |
  57 // Implemented-------------------------------------------------------+  |   |
  58 // Operation-------------------------------+                         |  |   |
  59 // Class----------------------------+      |                         |  |   |
  60 // Deprecated--------------------+  |      |                         |  |   |
  61 // Type----------------+         |  |      |                         |  |   |
  62 // Name                |         |  |      |                         |  |   |
  63 // |                   |         |  |      |                         |  |   |
  64 RD(NONE              , STATIC  , N, MISC , NONE                   ,  Y, -1, N)
  65 RD(PC24              , STATIC  , Y, ARM  , ((S + A) | T) - P      ,  Y, -1, Y)
  66 RD(ABS32             , STATIC  , N, DATA , (S + A) | T            ,  Y, -1, N)
  67 RD(REL32             , STATIC  , N, DATA , ((S + A) | T) - P      ,  Y, -1, N)
  68 RD(LDR_PC_G0         , STATIC  , N, ARM  , S + A - P              ,  Y,  0, Y)
  69 RD(ABS16             , STATIC  , N, DATA , S + A                  ,  Y, -1, Y)
  70 RD(ABS12             , STATIC  , N, ARM  , S + A                  ,  Y, -1, Y)
  71 RD(THM_ABS5          , STATIC  , N, THM16, S + A                  ,  Y, -1, Y)
  72 RD(ABS8              , STATIC  , N, DATA , S + A                  ,  Y, -1, Y)
  73 RD(SBREL32           , STATIC  , N, DATA , ((S + A) | T) - B(S)   ,  N, -1, N)
  74 RD(THM_CALL          , STATIC  , N, THM32, ((S + A) | T) - P      ,  Y, -1, Y)
  75 RD(THM_PC8           , STATIC  , N, THM16, S + A - Pa             ,  Y, -1, Y)
  76 RD(BREL_ADJ          , DYNAMIC , N, DATA , DELTA_B(S) + A         ,  Y, -1, N)
  77 RD(TLS_DESC          , DYNAMIC , N, DATA , NONE                   ,  Y, -1, N)
  78 RD(THM_SWI8          , OBSOLETE, N, NONE , NONE                   ,  N, -1, N)
  79 RD(XPC25             , OBSOLETE, N, NONE , NONE                   ,  N, -1, N)
  80 RD(THM_XPC22         , OBSOLETE, N, NONE , NONE                   ,  N, -1, N)
  81 RD(TLS_DTPMOD32      , DYNAMIC , N, DATA , Module(S)              ,  Y, -1, N)
  82 RD(TLS_DTPOFF32      , DYNAMIC , N, DATA , S + A - TLS            ,  Y, -1, N)
  83 RD(TLS_TPOFF32       , DYNAMIC , N, DATA , S + A - tp             ,  Y, -1, N)
  84 RD(COPY              , DYNAMIC , N, MISC , NONE                   ,  Y, -1, N)
  85 RD(GLOB_DAT          , DYNAMIC , N, DATA , (S + A) | T            ,  Y, -1, N)
  86 RD(JUMP_SLOT         , DYNAMIC , N, DATA , (S + A) | T            ,  Y, -1, N)
  87 RD(RELATIVE          , DYNAMIC , N, DATA , B(S) + A               ,  Y, -1, N)
  88 RD(GOTOFF32          , STATIC  , N, DATA , ((S + A) | T) - GOT_ORG,  Y, -1, N)
  89 RD(BASE_PREL         , STATIC  , N, DATA , B(S) + A - P           ,  Y, -1, N)
  90 RD(GOT_BREL          , STATIC  , N, DATA , GOT(S) + A - GOT_ORG   ,  Y, -1, N)
  91 RD(PLT32             , STATIC  , Y, ARM  , ((S + A) | T) - P      ,  Y, -1, Y)
  92 RD(CALL              , STATIC  , N, ARM  , ((S + A) | T) - P      ,  Y, -1, Y)
  93 RD(JUMP24            , STATIC  , N, ARM  , ((S + A) | T) - P      ,  Y, -1, Y)
  94 RD(THM_JUMP24        , STATIC  , N, THM32, ((S + A) | T) - P      ,  Y, -1, Y)
  95 RD(BASE_ABS          , STATIC  , N, DATA , B(S) + A               ,  Y, -1, N)
  96 RD(ALU_PCREL_7_0     , OBSOLETE, N, NONE , NONE                   ,  N, -1, N)
  97 RD(ALU_PCREL_15_8    , OBSOLETE, N, NONE , NONE                   ,  N, -1, N)
  98 RD(ALU_PCREL_23_15   , OBSOLETE, N, NONE , NONE                   ,  N, -1, N)
  99 RD(LDR_SBREL_11_0_NC , STATIC  , Y, ARM  , S + A - B(S)           ,  N, -1, N)
 100 RD(ALU_SBREL_19_12_NC, STATIC  , Y, ARM  , S + A - B(S)           ,  N, -1, N)
 101 RD(ALU_SBREL_27_20_CK, STATIC  , Y, ARM  , S + A - B(S)           ,  N, -1, Y)
 102 RD(TARGET1           , STATIC  , N, MISC , NONE                   ,  Y, -1, N)
 103 RD(SBREL31           , STATIC  , Y, DATA , ((S + A) | T) - B(S)   ,  N, -1, N)
 104 RD(V4BX              , STATIC  , N, MISC , NONE                   ,  Y, -1, N)
 105 RD(TARGET2           , STATIC  , N, MISC , NONE                   ,  Y, -1, N)
 106 RD(PREL31            , STATIC  , N, DATA , ((S + A) | T) - P      ,  Y, -1, Y)
 107 RD(MOVW_ABS_NC       , STATIC  , N, ARM  , (S + A) | T            ,  Y, -1, N)
 108 RD(MOVT_ABS          , STATIC  , N, ARM  , S + A                  ,  Y, -1, Y)
 109 RD(MOVW_PREL_NC      , STATIC  , N, ARM  , ((S + A) | T) - P      ,  Y, -1, N)
 110 RD(MOVT_PREL         , STATIC  , N, ARM  , (S + A)  - P           ,  Y, -1, Y)
 111 RD(THM_MOVW_ABS_NC   , STATIC  , N, THM32, (S + A) | T            ,  Y, -1, N)
 112 RD(THM_MOVT_ABS      , STATIC  , N, THM32, S + A                  ,  Y, -1, N)
 113 RD(THM_MOVW_PREL_NC  , STATIC  , N, THM32, ((S + A) | T) - P      ,  Y, -1, N)
 114 RD(THM_MOVT_PREL     , STATIC  , N, THM32, S + A - P              ,  Y, -1, N)
 115 RD(THM_JUMP19        , STATIC  , N, THM32, ((S + A) | T) - P      ,  Y, -1, Y)
 116 RD(THM_JUMP6         , STATIC  , N, THM16, S + A - P              ,  Y, -1, Y)
 117 RD(THM_ALU_PREL_11_0 , STATIC  , N, THM32, ((S + A) | T) - Pa     ,  Y, -1, Y)
 118 RD(THM_PC12          , STATIC  , N, THM32, S + A - Pa             ,  Y, -1, Y)
 119 RD(ABS32_NOI         , STATIC  , N, DATA , S + A                  ,  Y, -1, N)
 120 RD(REL32_NOI         , STATIC  , N, DATA , S + A - P              ,  N, -1, N)
 121 RD(ALU_PC_G0_NC      , STATIC  , N, ARM  , ((S + A) | T) - P      ,  Y,  0, N)
 122 RD(ALU_PC_G0         , STATIC  , N, ARM  , ((S + A) | T) - P      ,  Y,  0, Y)
 123 RD(ALU_PC_G1_NC      , STATIC  , N, ARM  , ((S + A) | T) - P      ,  Y,  1, N)
 124 RD(ALU_PC_G1         , STATIC  , N, ARM  , ((S + A) | T) - P      ,  Y,  1, Y)
 125 RD(ALU_PC_G2         , STATIC  , N, ARM  , ((S + A) | T) - P      ,  Y,  2, Y)
 126 RD(LDR_PC_G1         , STATIC  , N, ARM  , S + A - P              ,  Y,  1, Y)
 127 RD(LDR_PC_G2         , STATIC  , N, ARM  , S + A - P              ,  Y,  2, Y)
 128 RD(LDRS_PC_G0        , STATIC  , N, ARM  , S + A - P              ,  Y,  0, Y)
 129 RD(LDRS_PC_G1        , STATIC  , N, ARM  , S + A - P              ,  Y,  1, Y)
 130 RD(LDRS_PC_G2        , STATIC  , N, ARM  , S + A - P              ,  Y,  2, Y)
 131 RD(LDC_PC_G0         , STATIC  , N, ARM  , S + A - P              ,  Y,  0, Y)
 132 RD(LDC_PC_G1         , STATIC  , N, ARM  , S + A - P              ,  Y,  1, Y)
 133 RD(LDC_PC_G2         , STATIC  , N, ARM  , S + A - P              ,  Y,  2, Y)
 134 RD(ALU_SB_G0_NC      , STATIC  , N, ARM  , ((S + A) | T) - B(S)   ,  Y,  0, N)
 135 RD(ALU_SB_G0         , STATIC  , N, ARM  , ((S + A) | T) - B(S)   ,  Y,  0, Y)
 136 RD(ALU_SB_G1_NC      , STATIC  , N, ARM  , ((S + A) | T) - B(S)   ,  Y,  1, N)
 137 RD(ALU_SB_G1         , STATIC  , N, ARM  , ((S + A) | T) - B(S)   ,  Y,  1, Y)
 138 RD(ALU_SB_G2         , STATIC  , N, ARM  , ((S + A) | T) - B(S)   ,  Y,  2, Y)
 139 RD(LDR_SB_G0         , STATIC  , N, ARM  , S + A - B(S)           ,  Y,  0, Y)
 140 RD(LDR_SB_G1         , STATIC  , N, ARM  , S + A - B(S)           ,  Y,  1, Y)
 141 RD(LDR_SB_G2         , STATIC  , N, ARM  , S + A - B(S)           ,  Y,  2, Y)
 142 RD(LDRS_SB_G0        , STATIC  , N, ARM  , S + A - B(S)           ,  Y,  0, Y)
 143 RD(LDRS_SB_G1        , STATIC  , N, ARM  , S + A - B(S)           ,  Y,  1, Y)
 144 RD(LDRS_SB_G2        , STATIC  , N, ARM  , S + A - B(S)           ,  Y,  2, Y)
 145 RD(LDC_SB_G0         , STATIC  , N, ARM  , S + A - B(S)           ,  Y,  0, Y)
 146 RD(LDC_SB_G1         , STATIC  , N, ARM  , S + A - B(S)           ,  Y,  1, Y)
 147 RD(LDC_SB_G2         , STATIC  , N, ARM  , S + A - B(S)           ,  Y,  2, Y)
 148 RD(MOVW_BREL_NC      , STATIC  , N, ARM  , ((S + A) | T) - B(S)   ,  Y, -1, N)
 149 RD(MOVT_BREL         , STATIC  , N, ARM  , S + A - B(S)           ,  Y, -1, Y)
 150 RD(MOVW_BREL         , STATIC  , N, ARM  , ((S + A) | T) - B(S)   ,  Y, -1, Y)
 151 RD(THM_MOVW_BREL_NC  , STATIC  , N, THM32, ((S + A) | T) - B(S)   ,  Y, -1, N)
 152 RD(THM_MOVT_BREL     , STATIC  , N, THM32, S + A - B(S)           ,  Y, -1, N)
 153 RD(THM_MOVW_BREL     , STATIC  , N, THM32, ((S + A) | T) - B(S)   ,  Y, -1, Y)
 154 RD(TLS_GOTDESC       , STATIC  , N, DATA , NONE                   ,  Y, -1, N)
 155 RD(TLS_CALL          , STATIC  , N, ARM  , NONE                   ,  N, -1, Y)
 156 RD(TLS_DESCSEQ       , STATIC  , N, ARM  , NONE                   ,  N, -1, Y)
 157 RD(THM_TLS_CALL      , STATIC  , N, THM32, NONE                   ,  N, -1, Y)
 158 RD(PLT32_ABS         , STATIC  , N, DATA , PLT(S) + A             ,  N, -1, N)
 159 RD(GOT_ABS           , STATIC  , N, DATA , GOT(S) + A             ,  N, -1, N)
 160 RD(GOT_PREL          , STATIC  , N, DATA , GOT(S) + A - P         ,  Y, -1, N)
 161 RD(GOT_BREL12        , STATIC  , N, ARM  , GOT(S) + A - GOT_ORG   ,  N, -1, Y)
 162 RD(GOTOFF12          , STATIC  , N, ARM  , S + A - GOT_ORG        ,  N, -1, Y)
 163 RD(GOTRELAX          , STATIC  , N, MISC , NONE                   ,  N, -1, N)
 164 RD(GNU_VTENTRY       , STATIC  , Y, DATA , NONE                   ,  Y, -1, N)
 165 RD(GNU_VTINHERIT     , STATIC  , Y, DATA , NONE                   ,  Y, -1, N)
 166 RD(THM_JUMP11        , STATIC  , N, THM16, S + A - P              ,  Y, -1, Y)
 167 RD(THM_JUMP8         , STATIC  , N, THM16, S + A - P              ,  Y, -1, Y)
 168 RD(TLS_GD32          , STATIC  , N, DATA , GOT(S) + A - P         ,  Y, -1, N)
 169 RD(TLS_LDM32         , STATIC  , N, DATA , GOT(S) + A - P         ,  Y, -1, N)
 170 RD(TLS_LDO32         , STATIC  , N, DATA , S + A - TLS            ,  Y, -1, N)
 171 RD(TLS_IE32          , STATIC  , N, DATA , GOT(S) + A - P         ,  Y, -1, N)
 172 RD(TLS_LE32          , STATIC  , N, DATA , S + A - tp             ,  Y, -1, N)
 173 RD(TLS_LDO12         , STATIC  , N, ARM  , S + A - TLS            ,  N, -1, Y)
 174 RD(TLS_LE12          , STATIC  , N, ARM  , S + A - tp             ,  N, -1, Y)
 175 RD(TLS_IE12GP        , STATIC  , N, ARM  , GOT(S) + A - GOT_ORG   ,  N, -1, Y)
 176 RD(PRIVATE_0         , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 177 RD(PRIVATE_1         , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 178 RD(PRIVATE_2         , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 179 RD(PRIVATE_3         , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 180 RD(PRIVATE_4         , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 181 RD(PRIVATE_5         , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 182 RD(PRIVATE_6         , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 183 RD(PRIVATE_7         , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 184 RD(PRIVATE_8         , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 185 RD(PRIVATE_9         , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 186 RD(PRIVATE_10        , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 187 RD(PRIVATE_11        , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 188 RD(PRIVATE_12        , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 189 RD(PRIVATE_13        , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 190 RD(PRIVATE_14        , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 191 RD(PRIVATE_15        , PRIVATE , N, NONE , NONE                   ,  N, -1, N)
 192 RD(ME_TOO            , OBSOLETE, N, NONE , NONE                   ,  N, -1, N)
 193 RD(THM_TLS_DESCSEQ16 , STATIC  , N, THM16, NONE                   ,  N, -1, Y)
 194 RD(THM_TLS_DESCSEQ32 , STATIC  , N, THM32, NONE                   ,  N, -1, Y)