sdcc/support/sdbinutils/include/elf/tic6x.h

   1 /* TI C6X ELF support for BFD.
   2    Copyright (C) 2010-2022 Free Software Foundation, Inc.
   3
   4    This file is part of BFD, the Binary File Descriptor library.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  19    MA 02110-1301, USA.  */
  20
  21 #ifndef _ELF_TIC6X_H
  22 #define _ELF_TIC6X_H
  23
  24 #include "elf/reloc-macros.h"
  25
  26 /* Relocation types.  */
  27 START_RELOC_NUMBERS (elf_tic6x_reloc_type)
  28   RELOC_NUMBER (R_C6000_NONE, 0)
  29   RELOC_NUMBER (R_C6000_ABS32, 1)
  30   RELOC_NUMBER (R_C6000_ABS16, 2)
  31   RELOC_NUMBER (R_C6000_ABS8, 3)
  32   RELOC_NUMBER (R_C6000_PCR_S21, 4)
  33   RELOC_NUMBER (R_C6000_PCR_S12, 5)
  34   RELOC_NUMBER (R_C6000_PCR_S10, 6)
  35   RELOC_NUMBER (R_C6000_PCR_S7, 7)
  36   RELOC_NUMBER (R_C6000_ABS_S16, 8)
  37   RELOC_NUMBER (R_C6000_ABS_L16, 9)
  38   RELOC_NUMBER (R_C6000_ABS_H16, 10)
  39   RELOC_NUMBER (R_C6000_SBR_U15_B, 11)
  40   RELOC_NUMBER (R_C6000_SBR_U15_H, 12)
  41   RELOC_NUMBER (R_C6000_SBR_U15_W, 13)
  42   RELOC_NUMBER (R_C6000_SBR_S16, 14)
  43   RELOC_NUMBER (R_C6000_SBR_L16_B, 15)
  44   RELOC_NUMBER (R_C6000_SBR_L16_H, 16)
  45   RELOC_NUMBER (R_C6000_SBR_L16_W, 17)
  46   RELOC_NUMBER (R_C6000_SBR_H16_B, 18)
  47   RELOC_NUMBER (R_C6000_SBR_H16_H, 19)
  48   RELOC_NUMBER (R_C6000_SBR_H16_W, 20)
  49   RELOC_NUMBER (R_C6000_SBR_GOT_U15_W, 21)
  50   RELOC_NUMBER (R_C6000_SBR_GOT_L16_W, 22)
  51   RELOC_NUMBER (R_C6000_SBR_GOT_H16_W, 23)
  52   RELOC_NUMBER (R_C6000_DSBT_INDEX, 24)
  53   RELOC_NUMBER (R_C6000_PREL31, 25)
  54   RELOC_NUMBER (R_C6000_COPY, 26)
  55   RELOC_NUMBER (R_C6000_JUMP_SLOT, 27)
  56   RELOC_NUMBER (R_C6000_EHTYPE, 28)
  57   RELOC_NUMBER (R_C6000_PCR_H16, 29)
  58   RELOC_NUMBER (R_C6000_PCR_L16, 30)
  59   RELOC_NUMBER (R_C6000_ALIGN, 253)
  60   RELOC_NUMBER (R_C6000_FPHEAD, 254)
  61   RELOC_NUMBER (R_C6000_NOCMP, 255)
  62 END_RELOC_NUMBERS (R_TIC6X_max)
  63
  64 /* Processor-specific flags.  */
  65
  66 /* File contains static relocation information.  */
  67 #define EF_C6000_REL            0x1
  68
  69 /* Processor-specific section types.  */
  70
  71 /* Unwind function table for stack unwinding.  */
  72 #define SHT_C6000_UNWIND        0x70000001
  73
  74 /* DLL dynamic linking pre-emption map.  */
  75 #define SHT_C6000_PREEMPTMAP    0x70000002
  76
  77 /* Object file compatibility attributes.  */
  78 #define SHT_C6000_ATTRIBUTES    0x70000003
  79
  80 /* Intermediate code for link-time optimization.  */
  81 #define SHT_TI_ICODE            0x7F000000
  82
  83 /* Symbolic cross reference information.  */
  84 #define SHT_TI_XREF             0x7F000001
  85
  86 /* Reserved.  */
  87 #define SHT_TI_HANDLER          0x7F000002
  88
  89 /* Compressed data for initializing C variables.  */
  90 #define SHT_TI_INITINFO         0x7F000003
  91
  92 /* Extended program header attributes.  */
  93 #define SHT_TI_PHATTRS          0x7F000004
  94
  95 /* Processor specific section indices.  These sections do not actually
  96    exist.  Symbols with a st_shndx field corresponding to one of these
  97    values have a special meaning.  */
  98
  99 /* Small data area common symbol.  */
 100 #define SHN_TIC6X_SCOMMON       SHN_LORESERVE
 101
 102 /* Processor-specific segment types.  */
 103
 104 /* Extended Segment Attributes.  */
 105 #define PT_C6000_PHATTR         0x70000000
 106
 107 /* Processor-specific dynamic tags.  */
 108
 109 /* Undocumented.  */
 110 #define DT_C6000_GSYM_OFFSET    0x6000000D
 111
 112 /* Undocumented.  */
 113 #define DT_C6000_GSTR_OFFSET    0x6000000F
 114
 115 /* Statically linked base address of data segment.  */
 116 #define DT_C6000_DSBT_BASE      0x70000000
 117
 118 /* Number of entries in this module's DSBT.  */
 119 #define DT_C6000_DSBT_SIZE      0x70000001
 120
 121 /* Undocumented.  */
 122 #define DT_C6000_PREEMPTMAP     0x70000002
 123
 124 /* The hard-coded DSBT index for this module, if any.  */
 125 #define DT_C6000_DSBT_INDEX     0x70000003
 126
 127 /* Extended program header attributes.  */
 128
 129 /* Terminate a segment.  */
 130 #define PHA_NULL                0x0
 131
 132 /* Segment's address bound to the final address.  */
 133 #define PHA_BOUND               0x1
 134
 135 /* Segment cannot be further relocated.  */
 136 #define PHA_READONLY            0x2
 137
 138 /* Build attributes.  */
 139 enum
 140   {
 141 #define TAG(tag, value) tag = value,
 142 #include "elf/tic6x-attrs.h"
 143 #undef TAG
 144     Tag_C6XABI_last
 145   };
 146
 147 /* Values for Tag_ISA.  GNU-specific names; the ABI does not specify
 148    names for these values.  */
 149 enum
 150   {
 151     C6XABI_Tag_ISA_none = 0,
 152     C6XABI_Tag_ISA_C62X = 1,
 153     C6XABI_Tag_ISA_C67X = 3,
 154     C6XABI_Tag_ISA_C67XP = 4,
 155     C6XABI_Tag_ISA_C64X = 6,
 156     C6XABI_Tag_ISA_C64XP = 7,
 157     C6XABI_Tag_ISA_C674X = 8
 158   };
 159
 160 /* Special section names.  */
 161 #define ELF_STRING_C6000_unwind           ".c6xabi.exidx"
 162 #define ELF_STRING_C6000_unwind_info      ".c6xabi.extab"
 163 #define ELF_STRING_C6000_unwind_once      ".gnu.linkonce.c6xabi.exidx."
 164 #define ELF_STRING_C6000_unwind_info_once ".gnu.linkonce.c6xabi.extab."
 165
 166 #endif /* _ELF_TIC6X_H */