1 /* SOM a.out definitions for BFD. 2 Copyright (C) 2010-2021 Free Software Foundation, Inc. 3 Contributed by Tristan Gingold <gingold@adacore.com>, AdaCore. 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 _SOM_AOUT_H 22 #define _SOM_AOUT_H 23 24 #include "clock.h" 25 26 /* Note: SOM uses bit-field in its structure. All you need to know is: 27 - CPUs supported by SOM (hppa) are big-endian, 28 - the MSB is numbered 0. */ 29 30 struct som_external_header 31 { 32 unsigned char system_id[2]; 33 unsigned char a_magic[2]; 34 unsigned char version_id[4]; 35 struct som_external_clock file_time; 36 unsigned char entry_space[4]; 37 unsigned char entry_subspace[4]; 38 unsigned char entry_offset[4]; 39 unsigned char aux_header_location[4]; 40 unsigned char aux_header_size[4]; 41 unsigned char som_length[4]; 42 unsigned char presumed_dp[4]; 43 unsigned char space_location[4]; 44 unsigned char space_total[4]; 45 unsigned char subspace_location[4]; 46 unsigned char subspace_total[4]; 47 unsigned char loader_fixup_location[4]; 48 unsigned char loader_fixup_total[4]; 49 unsigned char space_strings_location[4]; 50 unsigned char space_strings_size[4]; 51 unsigned char init_array_location[4]; 52 unsigned char init_array_total[4]; 53 unsigned char compiler_location[4]; 54 unsigned char compiler_total[4]; 55 unsigned char symbol_location[4]; 56 unsigned char symbol_total[4]; 57 unsigned char fixup_request_location[4]; 58 unsigned char fixup_request_total[4]; 59 unsigned char symbol_strings_location[4]; 60 unsigned char symbol_strings_size[4]; 61 unsigned char unloadable_sp_location[4]; 62 unsigned char unloadable_sp_size[4]; 63 unsigned char checksum[4]; 64 }; 65 66 #define OLD_VERSION_ID 85082112 67 #define NEW_VERSION_ID 87102412 68 69 #define EXECLIBMAGIC 0x0104 70 #define RELOC_MAGIC 0x0106 71 #define EXEC_MAGIC 0x0107 72 #define SHARE_MAGIC 0x0108 73 #define SHMEM_MAGIC 0x0109 74 #define DEMAND_MAGIC 0x010b 75 #define DL_MAGIC 0x010d 76 #define SHL_MAGIC 0x010e 77 78 struct som_external_aux_id 79 { 80 unsigned char flags[4]; 81 unsigned char length[4]; 82 }; 83 84 /* Aux id types. */ 85 #define VERSION_AUX_ID 6 86 #define COPYRIGHT_AUX_ID 9 87 88 /* Aux id flags. */ 89 #define SOM_AUX_ID_MANDATORY (1u << 31) 90 #define SOM_AUX_ID_COPY (1 << 30) 91 #define SOM_AUX_ID_APPEND (1 << 29) 92 #define SOM_AUX_ID_IGNORE (1 << 28) 93 #define SOM_AUX_ID_TYPE_SH 0 94 #define SOM_AUX_ID_TYPE_MASK 0xffff 95 96 struct som_external_string_auxhdr 97 { 98 struct som_external_aux_id header_id; 99 100 /* Length of the string, without the NUL. */ 101 unsigned char string_length[4]; 102 103 /* The string. */ 104 }; 105 106 struct som_external_exec_auxhdr 107 { 108 struct som_external_aux_id som_auxhdr; 109 110 unsigned char exec_tsize[4]; 111 unsigned char exec_tmem[4]; 112 unsigned char exec_tfile[4]; 113 unsigned char exec_dsize[4]; 114 unsigned char exec_dmem[4]; 115 unsigned char exec_dfile[4]; 116 unsigned char exec_bsize[4]; 117 unsigned char exec_entry[4]; 118 unsigned char exec_flags[4]; 119 unsigned char exec_bfill[4]; 120 }; 121 122 #define AUX_HDR_SIZE sizeof (struct som_external_exec_auxhdr) 123 124 struct som_external_space_dictionary_record 125 { 126 unsigned char name[4]; 127 unsigned char flags[4]; 128 unsigned char space_number[4]; 129 unsigned char subspace_index[4]; 130 unsigned char subspace_quantity[4]; 131 unsigned char loader_fix_index[4]; 132 unsigned char loader_fix_quantity[4]; 133 unsigned char init_pointer_index[4]; 134 unsigned char init_pointer_quantity[4]; 135 }; 136 137 #define SOM_SPACE_IS_LOADABLE (1u << 31) 138 #define SOM_SPACE_IS_DEFINED (1 << 30) 139 #define SOM_SPACE_IS_PRIVATE (1 << 29) 140 #define SOM_SPACE_HAS_INTERMEDIATE_CODE (1 << 28) 141 #define SOM_SPACE_IS_TSPECIFIC (1 << 27) 142 #define SOM_SPACE_SORT_KEY_SH 8 143 #define SOM_SPACE_SORT_KEY_MASK 0xff 144 145 struct som_external_subspace_dictionary_record 146 { 147 unsigned char space_index[4]; 148 unsigned char flags[4]; 149 unsigned char file_loc_init_value[4]; 150 unsigned char initialization_length[4]; 151 unsigned char subspace_start[4]; 152 unsigned char subspace_length[4]; 153 unsigned char alignment[4]; 154 unsigned char name[4]; 155 unsigned char fixup_request_index[4]; 156 unsigned char fixup_request_quantity[4]; 157 }; 158 159 #define SOM_SUBSPACE_ACCESS_CONTROL_BITS_SH 25 160 #define SOM_SUBSPACE_ACCESS_CONTROL_BITS_MASK 0x7fU 161 #define SOM_SUBSPACE_MEMORY_RESIDENT (1U << 24) 162 #define SOM_SUBSPACE_DUP_COMMON (1U << 23) 163 #define SOM_SUBSPACE_IS_COMMON (1U << 22) 164 #define SOM_SUBSPACE_IS_LOADABLE (1U << 21) 165 #define SOM_SUBSPACE_QUADRANT_SH 19 166 #define SOM_SUBSPACE_QUADRANT_MASK 0x3U 167 #define SOM_SUBSPACE_INITIALLY_FROZEN (1U << 18) 168 #define SOM_SUBSPACE_IS_FIRST (1U << 17) 169 #define SOM_SUBSPACE_CODE_ONLY (1U << 16) 170 #define SOM_SUBSPACE_SORT_KEY_SH 8 171 #define SOM_SUBSPACE_SORT_KEY_MASK 0xffU 172 #define SOM_SUBSPACE_REPLICATE_INIT (1U << 7) 173 #define SOM_SUBSPACE_CONTINUATION (1U << 6) 174 #define SOM_SUBSPACE_IS_TSPECIFIC (1U << 5) 175 #define SOM_SUBSPACE_IS_COMDAT (1U << 4) 176 177 struct som_external_compilation_unit 178 { 179 unsigned char name[4]; 180 unsigned char language_name[4]; 181 unsigned char product_id[4]; 182 unsigned char version_id[4]; 183 unsigned char flags[4]; 184 struct som_external_clock compile_time; 185 struct som_external_clock source_time; 186 }; 187 188 struct som_external_symbol_dictionary_record 189 { 190 unsigned char flags[4]; 191 unsigned char name[4]; 192 unsigned char qualifier_name[4]; 193 unsigned char info[4]; 194 unsigned char symbol_value[4]; 195 }; 196 197 /* Flags fields. */ 198 #define SOM_SYMBOL_HIDDEN (1u << 31) 199 #define SOM_SYMBOL_SECONDARY_DEF (1 << 30) 200 #define SOM_SYMBOL_TYPE_SH 24 201 #define SOM_SYMBOL_TYPE_MASK 0x3f 202 #define SOM_SYMBOL_SCOPE_SH 20 203 #define SOM_SYMBOL_SCOPE_MASK 0xf 204 #define SOM_SYMBOL_CHECK_LEVEL_SH 17 205 #define SOM_SYMBOL_CHECK_LEVEL_MASK 0x7 206 #define SOM_SYMBOL_MUST_QUALIFY (1 << 16) 207 #define SOM_SYMBOL_INITIALLY_FROZEN (1 << 15) 208 #define SOM_SYMBOL_MEMORY_RESIDENT (1 << 14) 209 #define SOM_SYMBOL_IS_COMMON (1 << 13) 210 #define SOM_SYMBOL_DUP_COMMON (1 << 12) 211 #define SOM_SYMBOL_XLEAST_SH 10 212 #define SOM_SYMBOL_XLEAT_MASK 0x3 213 #define SOM_SYMBOL_ARG_RELOC_SH 0 214 #define SOM_SYMBOL_ARG_RELOC_MASK 0x3ff 215 216 /* Info fields. */ 217 #define SOM_SYMBOL_HAS_LONG_RETURN (1u << 31) 218 #define SOM_SYMBOL_NO_RELOCATION (1 << 30) 219 #define SOM_SYMBOL_IS_COMDAT (1 << 29) 220 #define SOM_SYMBOL_SYMBOL_INFO_SH 0 221 #define SOM_SYMBOL_SYMBOL_INFO_MASK 0xffffff 222 223 /* Symbol type definition. */ 224 #define ST_NULL 0 225 #define ST_ABSOLUTE 1 226 #define ST_DATA 2 227 #define ST_CODE 3 228 #define ST_PRI_PROG 4 229 #define ST_SEC_PROG 5 230 #define ST_ENTRY 6 231 #define ST_STORAGE 7 232 #define ST_STUB 8 233 #define ST_MODULE 9 234 #define ST_SYM_EXT 10 235 #define ST_ARG_EXT 11 236 #define ST_MILLICODE 12 237 #define ST_PLABEL 13 238 #define ST_OCT_DIS 14 239 #define ST_MILLI_EXT 15 240 #define ST_TSTORAGE 16 241 #define ST_COMDAT 17 242 243 /* Symbol scope. */ 244 #define SS_UNSAT 0 245 #define SS_EXTERNAL 1 246 #define SS_LOCAL 2 247 #define SS_UNIVERSAL 3 248 249 #endif /* _SOM_AOUT_H */ 250