include/elf/msp430.h

   1 /* MSP430 ELF support for BFD.
   2    Copyright (C) 2002-2021 Free Software Foundation, Inc.
   3    Contributed by Dmitry Diky <diwil@mail.ru>
   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 Foundation,
  19    Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  20
  21 #ifndef _ELF_MSP430_H
  22 #define _ELF_MSP430_H
  23
  24 #include "elf/reloc-macros.h"
  25
  26 /* Processor specific flags for the ELF header e_flags field.  */
  27 #define EF_MSP430_MACH          0xff
  28
  29 #define E_MSP430_MACH_MSP430x11  11
  30 #define E_MSP430_MACH_MSP430x11x1  110
  31 #define E_MSP430_MACH_MSP430x12  12
  32 #define E_MSP430_MACH_MSP430x13  13
  33 #define E_MSP430_MACH_MSP430x14  14
  34 #define E_MSP430_MACH_MSP430x15  15
  35 #define E_MSP430_MACH_MSP430x16  16
  36 #define E_MSP430_MACH_MSP430x20  20
  37 #define E_MSP430_MACH_MSP430x22  22
  38 #define E_MSP430_MACH_MSP430x23  23
  39 #define E_MSP430_MACH_MSP430x24  24
  40 #define E_MSP430_MACH_MSP430x26  26
  41 #define E_MSP430_MACH_MSP430x31  31
  42 #define E_MSP430_MACH_MSP430x32  32
  43 #define E_MSP430_MACH_MSP430x33  33
  44 #define E_MSP430_MACH_MSP430x41  41
  45 #define E_MSP430_MACH_MSP430x42  42
  46 #define E_MSP430_MACH_MSP430x43  43
  47 #define E_MSP430_MACH_MSP430x44  44
  48 #define E_MSP430_MACH_MSP430X    45
  49 #define E_MSP430_MACH_MSP430x46  46
  50 #define E_MSP430_MACH_MSP430x47  47
  51 #define E_MSP430_MACH_MSP430x54  54
  52
  53 #define SHT_MSP430_ATTRIBUTES   0x70000003      /* Section holds ABI attributes.  */
  54 #define SHT_MSP430_SEC_FLAGS    0x7f000005      /* Holds TI compiler's section flags.  */
  55 #define SHT_MSP430_SYM_ALIASES  0x7f000006      /* Holds TI compiler's symbol aliases.  */
  56
  57 /* Tag values for an attribute section.  */
  58 #define OFBA_MSPABI_Tag_ISA             4
  59 #define OFBA_MSPABI_Tag_Code_Model      6
  60 #define OFBA_MSPABI_Tag_Data_Model      8
  61 #define OFBA_MSPABI_Tag_enum_size       10      /* Unused by GNU.  */
  62
  63 /* GNU Object attribute tags.  */
  64 enum
  65 {
  66   /* 0-3 are generic.  */
  67
  68   /* Define a GNU attribute for keeping track of whether the compiler has
  69      generated code assuming that the upper region could be in use.
  70      Added by the assembler based on the -mdata-region option.
  71      This tag is ignored unless the large memory model is in use.  */
  72   Tag_GNU_MSP430_Data_Region = 4,
  73 };
  74
  75 /* Object attribute values.  */
  76 enum
  77 {
  78   /* Values defined for OFBA_MSPABI_Tag_ISA.  */
  79   OFBA_MSPABI_Val_ISA_NONE = 0,
  80   OFBA_MSPABI_Val_ISA_MSP430 = 1,
  81   OFBA_MSPABI_Val_ISA_MSP430X = 2,
  82
  83   /* Values defined for OFBA_MSPABI_Tag_Code_Model.  */
  84   OFBA_MSPABI_Val_Code_Model_NONE = 0,
  85   OFBA_MSPABI_Val_Code_Model_SMALL = 1,
  86   OFBA_MSPABI_Val_Code_Model_LARGE = 2,
  87
  88   /* Values defined for OFBA_MSPABI_Tag_Data_Model.  */
  89   OFBA_MSPABI_Val_Data_Model_NONE = 0,
  90   OFBA_MSPABI_Val_Data_Model_SMALL = 1,
  91   OFBA_MSPABI_Val_Data_Model_LARGE = 2,
  92   OFBA_MSPABI_Val_Data_Model_RESTRICTED = 3,    /* Unused by GNU.  */
  93
  94   /* Values defined for Tag_GNU_MSP430_Data_Region.  */
  95   Val_GNU_MSP430_Data_Region_NONE = 0,
  96   /* The default data region.  Assumes all data is below address 0x10000.  */
  97   Val_GNU_MSP430_Data_Region_Lower = 1,
  98   /* Set if -mdata-region={none,upper,either}.  Assumes
  99      data could be placed at or above address 0x10000.  */
 100   Val_GNU_MSP430_Data_Region_Any = 2,
 101 };
 102
 103 /* Relocations.  */
 104 START_RELOC_NUMBERS (elf_msp430_reloc_type)
 105      RELOC_NUMBER (R_MSP430_NONE,               0)
 106      RELOC_NUMBER (R_MSP430_32,                 1)
 107      RELOC_NUMBER (R_MSP430_10_PCREL,           2)
 108      RELOC_NUMBER (R_MSP430_16,                 3)
 109      RELOC_NUMBER (R_MSP430_16_PCREL,           4)
 110      RELOC_NUMBER (R_MSP430_16_BYTE,            5)
 111      RELOC_NUMBER (R_MSP430_16_PCREL_BYTE,      6)
 112      RELOC_NUMBER (R_MSP430_2X_PCREL,           7)
 113      RELOC_NUMBER (R_MSP430_RL_PCREL,           8)
 114      RELOC_NUMBER (R_MSP430_8,                  9)
 115      RELOC_NUMBER (R_MSP430_SYM_DIFF,           10)
 116      RELOC_NUMBER (R_MSP430_GNU_SET_ULEB128, 11) /* GNU only.  */
 117      RELOC_NUMBER (R_MSP430_GNU_SUB_ULEB128, 12) /* GNU only.  */
 118 END_RELOC_NUMBERS (R_MSP430_max)
 119
 120 START_RELOC_NUMBERS (elf_msp430x_reloc_type)
 121      RELOC_NUMBER (R_MSP430_ABS32, 1)           /* aka R_MSP430_32 */
 122      RELOC_NUMBER (R_MSP430_ABS16, 2)           /* aka R_MSP430_16 */
 123      RELOC_NUMBER (R_MSP430_ABS8, 3)
 124      RELOC_NUMBER (R_MSP430_PCR16, 4)           /* aka R_MSP430_16_PCREL */
 125      RELOC_NUMBER (R_MSP430X_PCR20_EXT_SRC, 5)
 126      RELOC_NUMBER (R_MSP430X_PCR20_EXT_DST, 6)
 127      RELOC_NUMBER (R_MSP430X_PCR20_EXT_ODST, 7)
 128      RELOC_NUMBER (R_MSP430X_ABS20_EXT_SRC, 8)
 129      RELOC_NUMBER (R_MSP430X_ABS20_EXT_DST, 9)
 130      RELOC_NUMBER (R_MSP430X_ABS20_EXT_ODST, 10)
 131      RELOC_NUMBER (R_MSP430X_ABS20_ADR_SRC, 11)
 132      RELOC_NUMBER (R_MSP430X_ABS20_ADR_DST, 12)
 133      RELOC_NUMBER (R_MSP430X_PCR16, 13)         /* Like R_MSP430_PCR16 but with overflow checking.  */
 134      RELOC_NUMBER (R_MSP430X_PCR20_CALL, 14)
 135      RELOC_NUMBER (R_MSP430X_ABS16, 15)         /* Like R_MSP430_ABS16 but with overflow checking.  */
 136      RELOC_NUMBER (R_MSP430_ABS_HI16, 16)
 137      RELOC_NUMBER (R_MSP430_PREL31, 17)
 138      RELOC_NUMBER (R_MSP430_EHTYPE, 18)         /* Mentioned in ABI.  */
 139      RELOC_NUMBER (R_MSP430X_10_PCREL, 19)      /* Red Hat invention.  Used for Jump instructions.  */
 140      RELOC_NUMBER (R_MSP430X_2X_PCREL, 20)      /* Red Hat invention.  Used for relaxing jumps.  */
 141      RELOC_NUMBER (R_MSP430X_SYM_DIFF, 21)      /* Red Hat invention.  Used for relaxing debug info.  */
 142      RELOC_NUMBER (R_MSP430X_GNU_SET_ULEB128, 22) /* GNU only.  */
 143      RELOC_NUMBER (R_MSP430X_GNU_SUB_ULEB128, 23) /* GNU only.  */
 144 END_RELOC_NUMBERS (R_MSP430x_max)
 145
 146 #endif /* _ELF_MSP430_H */