include/elf/tic6x.h

   1 /* TI C6X ELF support for BFD.
   2    Copyright 2010, 2011
   3    Free Software Foundation, Inc.
   4
   5    This file is part of BFD, the Binary File Descriptor library.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  20    MA 02110-1301, USA.  */
  21
  22 #ifndef _ELF_TIC6X_H
  23 #define _ELF_TIC6X_H
  24
  25 #include "elf/reloc-macros.h"
  26
  27 /* Relocation types.  */
  28 START_RELOC_NUMBERS (elf_tic6x_reloc_type)
  29   RELOC_NUMBER (R_C6000_NONE, 0)
  30   RELOC_NUMBER (R_C6000_ABS32, 1)
  31   RELOC_NUMBER (R_C6000_ABS16, 2)
  32   RELOC_NUMBER (R_C6000_ABS8, 3)
  33   RELOC_NUMBER (R_C6000_PCR_S21, 4)
  34   RELOC_NUMBER (R_C6000_PCR_S12, 5)
  35   RELOC_NUMBER (R_C6000_PCR_S10, 6)
  36   RELOC_NUMBER (R_C6000_PCR_S7, 7)
  37   RELOC_NUMBER (R_C6000_ABS_S16, 8)
  38   RELOC_NUMBER (R_C6000_ABS_L16, 9)
  39   RELOC_NUMBER (R_C6000_ABS_H16, 10)
  40   RELOC_NUMBER (R_C6000_SBR_U15_B, 11)
  41   RELOC_NUMBER (R_C6000_SBR_U15_H, 12)
  42   RELOC_NUMBER (R_C6000_SBR_U15_W, 13)
  43   RELOC_NUMBER (R_C6000_SBR_S16, 14)
  44   RELOC_NUMBER (R_C6000_SBR_L16_B, 15)
  45   RELOC_NUMBER (R_C6000_SBR_L16_H, 16)
  46   RELOC_NUMBER (R_C6000_SBR_L16_W, 17)
  47   RELOC_NUMBER (R_C6000_SBR_H16_B, 18)
  48   RELOC_NUMBER (R_C6000_SBR_H16_H, 19)
  49   RELOC_NUMBER (R_C6000_SBR_H16_W, 20)
  50   RELOC_NUMBER (R_C6000_SBR_GOT_U15_W, 21)
  51   RELOC_NUMBER (R_C6000_SBR_GOT_L16_W, 22)
  52   RELOC_NUMBER (R_C6000_SBR_GOT_H16_W, 23)
  53   RELOC_NUMBER (R_C6000_DSBT_INDEX, 24)
  54   RELOC_NUMBER (R_C6000_PREL31, 25)
  55   RELOC_NUMBER (R_C6000_COPY, 26)
  56   RELOC_NUMBER (R_C6000_JUMP_SLOT, 27)
  57   RELOC_NUMBER (R_C6000_EHTYPE, 28)
  58   RELOC_NUMBER (R_C6000_PCR_H16, 29)
  59   RELOC_NUMBER (R_C6000_PCR_L16, 30)
  60   RELOC_NUMBER (R_C6000_ALIGN, 253)
  61   RELOC_NUMBER (R_C6000_FPHEAD, 254)
  62   RELOC_NUMBER (R_C6000_NOCMP, 255)
  63 END_RELOC_NUMBERS (R_TIC6X_max)
  64
  65 /* Processor-specific flags.  */
  66
  67 /* File contains static relocation information.  */
  68 #define EF_C6000_REL            0x1
  69
  70 /* Processor-specific section types.  */
  71
  72 /* Unwind function table for stack unwinding.  */
  73 #define SHT_C6000_UNWIND        0x70000001
  74
  75 /* DLL dynamic linking pre-emption map.  */
  76 #define SHT_C6000_PREEMPTMAP    0x70000002
  77
  78 /* Object file compatibility attributes.  */
  79 #define SHT_C6000_ATTRIBUTES    0x70000003
  80
  81 /* Intermediate code for link-time optimization.  */
  82 #define SHT_TI_ICODE            0x7F000000
  83
  84 /* Symbolic cross reference information.  */
  85 #define SHT_TI_XREF             0x7F000001
  86
  87 /* Reserved.  */
  88 #define SHT_TI_HANDLER          0x7F000002
  89
  90 /* Compressed data for initializing C variables.  */
  91 #define SHT_TI_INITINFO         0x7F000003
  92
  93 /* Extended program header attributes.  */
  94 #define SHT_TI_PHATTRS          0x7F000004
  95
  96 /* Processor specific section indices.  These sections do not actually
  97    exist.  Symbols with a st_shndx field corresponding to one of these
  98    values have a special meaning.  */
  99
 100 /* Small data area common symbol.  */
 101 #define SHN_TIC6X_SCOMMON       SHN_LORESERVE
 102
 103 /* Processor-specific segment types.  */
 104
 105 /* Extended Segment Attributes.  */
 106 #define PT_C6000_PHATTR         0x70000000
 107
 108 /* Processor-specific dynamic tags.  */
 109
 110 /* Undocumented.  */
 111 #define DT_C6000_GSYM_OFFSET    0x6000000D
 112
 113 /* Undocumented.  */
 114 #define DT_C6000_GSTR_OFFSET    0x6000000F
 115
 116 /* Statically linked base address of data segment.  */
 117 #define DT_C6000_DSBT_BASE      0x70000000
 118
 119 /* Number of entries in this module's DSBT.  */
 120 #define DT_C6000_DSBT_SIZE      0x70000001
 121
 122 /* Undocumented.  */
 123 #define DT_C6000_PREEMPTMAP     0x70000002
 124
 125 /* The hard-coded DSBT index for this module, if any.  */
 126 #define DT_C6000_DSBT_INDEX     0x70000003
 127
 128 /* Extended program header attributes.  */
 129
 130 /* Terminate a segment.  */
 131 #define PHA_NULL                0x0
 132
 133 /* Segment's address bound to the final address.  */
 134 #define PHA_BOUND               0x1
 135
 136 /* Segment cannot be further relocated.  */
 137 #define PHA_READONLY            0x2
 138
 139 /* Build attributes.  */
 140 enum
 141   {
 142 #define TAG(tag, value) tag = value,
 143 #include "elf/tic6x-attrs.h"
 144 #undef TAG
 145     Tag_C6XABI_last
 146   };
 147
 148 /* Values for Tag_ISA.  GNU-specific names; the ABI does not specify
 149    names for these values.  */
 150 enum
 151   {
 152     C6XABI_Tag_ISA_none = 0,
 153     C6XABI_Tag_ISA_C62X = 1,
 154     C6XABI_Tag_ISA_C67X = 3,
 155     C6XABI_Tag_ISA_C67XP = 4,
 156     C6XABI_Tag_ISA_C64X = 6,
 157     C6XABI_Tag_ISA_C64XP = 7,
 158     C6XABI_Tag_ISA_C674X = 8
 159   };
 160
 161 /* Special section names.  */
 162 #define ELF_STRING_C6000_unwind           ".c6xabi.exidx"
 163 #define ELF_STRING_C6000_unwind_info      ".c6xabi.extab"
 164 #define ELF_STRING_C6000_unwind_once      ".gnu.linkonce.c6xabi.exidx."
 165 #define ELF_STRING_C6000_unwind_info_once ".gnu.linkonce.c6xabi.extab."
 166
 167 #endif /* _ELF_TIC6X_H */