include/som/aout.h

   1 /* SOM a.out definitions for BFD.
   2    Copyright (C) 2010-2024 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 */