| 1 | /* MSP430 ELF support for BFD. |
| 2 | Copyright (C) 2002-2020 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 | END_RELOC_NUMBERS (R_MSP430_max) |
| 117 | |
| 118 | START_RELOC_NUMBERS (elf_msp430x_reloc_type) |
| 119 | RELOC_NUMBER (R_MSP430_ABS32, 1) /* aka R_MSP430_32 */ |
| 120 | RELOC_NUMBER (R_MSP430_ABS16, 2) /* aka R_MSP430_16 */ |
| 121 | RELOC_NUMBER (R_MSP430_ABS8, 3) |
| 122 | RELOC_NUMBER (R_MSP430_PCR16, 4) /* aka R_MSP430_16_PCREL */ |
| 123 | RELOC_NUMBER (R_MSP430X_PCR20_EXT_SRC, 5) |
| 124 | RELOC_NUMBER (R_MSP430X_PCR20_EXT_DST, 6) |
| 125 | RELOC_NUMBER (R_MSP430X_PCR20_EXT_ODST, 7) |
| 126 | RELOC_NUMBER (R_MSP430X_ABS20_EXT_SRC, 8) |
| 127 | RELOC_NUMBER (R_MSP430X_ABS20_EXT_DST, 9) |
| 128 | RELOC_NUMBER (R_MSP430X_ABS20_EXT_ODST, 10) |
| 129 | RELOC_NUMBER (R_MSP430X_ABS20_ADR_SRC, 11) |
| 130 | RELOC_NUMBER (R_MSP430X_ABS20_ADR_DST, 12) |
| 131 | RELOC_NUMBER (R_MSP430X_PCR16, 13) /* Like R_MSP430_PCR16 but with overflow checking. */ |
| 132 | RELOC_NUMBER (R_MSP430X_PCR20_CALL, 14) |
| 133 | RELOC_NUMBER (R_MSP430X_ABS16, 15) /* Like R_MSP430_ABS16 but with overflow checking. */ |
| 134 | RELOC_NUMBER (R_MSP430_ABS_HI16, 16) |
| 135 | RELOC_NUMBER (R_MSP430_PREL31, 17) |
| 136 | RELOC_NUMBER (R_MSP430_EHTYPE, 18) /* Mentioned in ABI. */ |
| 137 | RELOC_NUMBER (R_MSP430X_10_PCREL, 19) /* Red Hat invention. Used for Jump instructions. */ |
| 138 | RELOC_NUMBER (R_MSP430X_2X_PCREL, 20) /* Red Hat invention. Used for relaxing jumps. */ |
| 139 | RELOC_NUMBER (R_MSP430X_SYM_DIFF, 21) /* Red Hat invention. Used for relaxing debug info. */ |
| 140 | END_RELOC_NUMBERS (R_MSP430x_max) |
| 141 | |
| 142 | #endif /* _ELF_MSP430_H */ |