| 1 | #!/usr/local/bin/bash |
| 2 | |
| 3 | # Architecture commands for GDB, the GNU debugger. |
| 4 | # Copyright 1998-2000 Free Software Foundation, Inc. |
| 5 | # |
| 6 | # This file is part of GDB. |
| 7 | # |
| 8 | # This program is free software; you can redistribute it and/or modify |
| 9 | # it under the terms of the GNU General Public License as published by |
| 10 | # the Free Software Foundation; either version 2 of the License, or |
| 11 | # (at your option) any later version. |
| 12 | # |
| 13 | # This program is distributed in the hope that it will be useful, |
| 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | # GNU General Public License for more details. |
| 17 | # |
| 18 | # You should have received a copy of the GNU General Public License |
| 19 | # along with this program; if not, write to the Free Software |
| 20 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 21 | |
| 22 | compare_new () |
| 23 | { |
| 24 | file=$1 |
| 25 | if ! test -r ${file} |
| 26 | then |
| 27 | echo "${file} missing? cp new-${file} ${file}" 1>&2 |
| 28 | elif diff -c ${file} new-${file} |
| 29 | then |
| 30 | echo "${file} unchanged" 1>&2 |
| 31 | else |
| 32 | echo "${file} has changed? cp new-${file} ${file}" 1>&2 |
| 33 | fi |
| 34 | } |
| 35 | |
| 36 | |
| 37 | # DEFAULT is a valid fallback definition of a MACRO when |
| 38 | # multi-arch is not enabled. |
| 39 | default_is_fallback_p () |
| 40 | { |
| 41 | [ "${default}" != "" -a "${invalid_p}" = "0" ] |
| 42 | } |
| 43 | |
| 44 | # Format of the input table |
| 45 | read="class level macro returntype function formal actual attrib startup default invalid_p fmt print print_p description" |
| 46 | |
| 47 | class_is_variable_p () |
| 48 | { |
| 49 | [ "${class}" = "v" -o "${class}" = "V" ] |
| 50 | } |
| 51 | |
| 52 | class_is_function_p () |
| 53 | { |
| 54 | [ "${class}" = "f" -o "${class}" = "F" ] |
| 55 | } |
| 56 | |
| 57 | class_is_predicate_p () |
| 58 | { |
| 59 | [ "${class}" = "F" -o "${class}" = "V" ] |
| 60 | } |
| 61 | |
| 62 | class_is_info_p () |
| 63 | { |
| 64 | [ "${class}" = "i" ] |
| 65 | } |
| 66 | |
| 67 | |
| 68 | do_read () |
| 69 | { |
| 70 | if eval read $read |
| 71 | then |
| 72 | test "${startup}" || startup=0 |
| 73 | test "${fmt}" || fmt="%ld" |
| 74 | test "${print}" || print="(long) ${macro}" |
| 75 | #FIXME: |
| 76 | #Should set DEFAULT to zero and force the user to provide |
| 77 | #an invalid_p=0 |
| 78 | #test "${default}" || default=0 - NO |
| 79 | case "${invalid_p}" in |
| 80 | 0 ) valid_p=1 ;; |
| 81 | "" ) test "${default}" && valid_p="gdbarch->${function} != ${default}" |
| 82 | #NOT_YET |
| 83 | #test "${default}" && invalid_p="gdbarch->${function} == ${default}" |
| 84 | ;; |
| 85 | * ) valid_p="!(${invalid_p})" |
| 86 | esac |
| 87 | #NOT YET: |
| 88 | : |
| 89 | else |
| 90 | false |
| 91 | fi |
| 92 | } |
| 93 | |
| 94 | |
| 95 | # dump out/verify the doco |
| 96 | for field in ${read} |
| 97 | do |
| 98 | case ${field} in |
| 99 | |
| 100 | class ) : ;; |
| 101 | |
| 102 | # # -> line disable |
| 103 | # f -> function |
| 104 | # hiding a function |
| 105 | # F -> function + predicate |
| 106 | # hiding a function + predicate to test function validity |
| 107 | # v -> variable |
| 108 | # hiding a variable |
| 109 | # V -> variable + predicate |
| 110 | # hiding a variable + predicate to test variables validity |
| 111 | # i -> set from info |
| 112 | # hiding something from the ``struct info'' object |
| 113 | |
| 114 | level ) : ;; |
| 115 | |
| 116 | # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >= |
| 117 | # LEVEL is a predicate on checking that a given method is |
| 118 | # initialized (using INVALID_P). |
| 119 | |
| 120 | macro ) : ;; |
| 121 | |
| 122 | # The name of the MACRO that this method is to be accessed by. |
| 123 | |
| 124 | returntype ) : ;; |
| 125 | |
| 126 | # For functions, the return type; for variables, the data type |
| 127 | |
| 128 | function ) : ;; |
| 129 | |
| 130 | # For functions, the member function name; for variables, the |
| 131 | # variable name. Member function names are always prefixed with |
| 132 | # ``gdbarch_'' for name-space purity. |
| 133 | |
| 134 | formal ) : ;; |
| 135 | |
| 136 | # The formal argument list. It is assumed that the formal |
| 137 | # argument list includes the actual name of each list element. |
| 138 | # A function with no arguments shall have ``void'' as the |
| 139 | # formal argument list. |
| 140 | |
| 141 | actual ) : ;; |
| 142 | |
| 143 | # The list of actual arguments. The arguments specified shall |
| 144 | # match the FORMAL list given above. Functions with out |
| 145 | # arguments leave this blank. |
| 146 | |
| 147 | attrib ) : ;; |
| 148 | |
| 149 | # Any GCC attributes that should be attached to the function |
| 150 | # declaration. At present this field is unused. |
| 151 | |
| 152 | startup ) : ;; |
| 153 | |
| 154 | # To help with the GDB startup a static gdbarch object is |
| 155 | # created. STARTUP is the value to insert into that static |
| 156 | # gdbarch object. |
| 157 | |
| 158 | # By default ``0'' is used. |
| 159 | |
| 160 | default ) : ;; |
| 161 | |
| 162 | # Any initial value to assign to a new gdbarch object after it |
| 163 | # as been malloc()ed. Zero is used by default. |
| 164 | |
| 165 | # Specify a non-empty DEFAULT and a zero INVALID_P to create a |
| 166 | # fallback value or function for when multi-arch is disabled. |
| 167 | # Specify a zero DEFAULT function to make that fallback |
| 168 | # illegal to call. |
| 169 | |
| 170 | invalid_p ) : ;; |
| 171 | |
| 172 | # A predicate equation that validates MEMBER. Non-zero is |
| 173 | # returned if the code creating the new architecture failed to |
| 174 | # initialize the MEMBER or initialized the member to something |
| 175 | # invalid. By default, a check that the value is no longer |
| 176 | # equal to DEFAULT is performed. The equation ``0'' disables |
| 177 | # the invalid_p check. |
| 178 | |
| 179 | fmt ) : ;; |
| 180 | |
| 181 | # printf style format string that can be used to print out the |
| 182 | # MEMBER. Sometimes "%s" is useful. For functions, this is |
| 183 | # ignored and the function address is printed. |
| 184 | |
| 185 | # By default ```%ld'' is used. |
| 186 | |
| 187 | print ) : ;; |
| 188 | |
| 189 | # An optional equation that casts MEMBER to a value suitable |
| 190 | # for formatting by FMT. |
| 191 | |
| 192 | # By default ``(long)'' is used. |
| 193 | |
| 194 | print_p ) : ;; |
| 195 | |
| 196 | # An optional indicator for any predicte to wrap around the |
| 197 | # print member code. |
| 198 | |
| 199 | # exp -> Wrap print up in ``if (${print_p}) ... |
| 200 | # ``'' -> No predicate |
| 201 | |
| 202 | description ) : ;; |
| 203 | |
| 204 | # Currently unused. |
| 205 | |
| 206 | *) exit 1;; |
| 207 | esac |
| 208 | done |
| 209 | |
| 210 | IFS=: |
| 211 | |
| 212 | function_list () |
| 213 | { |
| 214 | # See below (DOCO) for description of each field |
| 215 | cat <<EOF | |
| 216 | i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct:::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL |
| 217 | # |
| 218 | i:2:TARGET_BYTE_ORDER:int:byte_order::::BIG_ENDIAN |
| 219 | # |
| 220 | v:1:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address:0 |
| 221 | v:1:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):0 |
| 222 | #v:1:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):0 |
| 223 | v:1:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):0 |
| 224 | v:1:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):0 |
| 225 | v:1:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):0 |
| 226 | v:1:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):0 |
| 227 | v:1:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):0 |
| 228 | v:1:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):0 |
| 229 | v:1:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):0 |
| 230 | v:1:IEEE_FLOAT:int:ieee_float::::0:0:0::: |
| 231 | # |
| 232 | f:1:TARGET_READ_PC:CORE_ADDR:read_pc:int pid:pid::0:0 |
| 233 | f:1:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, int pid:val, pid::0:0 |
| 234 | f:1:TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:0 |
| 235 | f:1:TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:0 |
| 236 | f:1:TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:0 |
| 237 | f:1:TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:0 |
| 238 | # |
| 239 | v:2:NUM_REGS:int:num_regs::::0:-1 |
| 240 | v:2:SP_REGNUM:int:sp_regnum::::0:-1 |
| 241 | v:2:FP_REGNUM:int:fp_regnum::::0:-1 |
| 242 | v:2:PC_REGNUM:int:pc_regnum::::0:-1 |
| 243 | v:2:FP0_REGNUM:int:fp0_regnum::::0:-1:0 |
| 244 | v:2:NPC_REGNUM:int:npc_regnum::::0:-1:0 |
| 245 | v:2:NNPC_REGNUM:int:nnpc_regnum::::0:-1:0 |
| 246 | f:2:REGISTER_NAME:char *:register_name:int regnr:regnr:::legacy_register_name:0 |
| 247 | v:2:REGISTER_SIZE:int:register_size::::0:-1 |
| 248 | v:2:REGISTER_BYTES:int:register_bytes::::0:-1 |
| 249 | f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0 |
| 250 | f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::0:0 |
| 251 | v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1 |
| 252 | f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::0:0 |
| 253 | v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1 |
| 254 | f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0 |
| 255 | # |
| 256 | v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1 |
| 257 | v:2:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0 |
| 258 | f:2:CALL_DUMMY_ADDRESS:CORE_ADDR:call_dummy_address:void:::0:0:gdbarch->call_dummy_location == AT_ENTRY_POINT && gdbarch->call_dummy_address == 0: |
| 259 | v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1::0x%08lx |
| 260 | v:2:CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset::::0:-1::0x%08lx |
| 261 | v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1 |
| 262 | v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END |
| 263 | f:2:PC_IN_CALL_DUMMY:int:pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::0:0 |
| 264 | v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1 |
| 265 | v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words:0:0x%08lx |
| 266 | v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words:0:0x%08lx |
| 267 | v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1::0x%08lx |
| 268 | v:2:CALL_DUMMY_STACK_ADJUST:int:call_dummy_stack_adjust::::0::gdbarch->call_dummy_stack_adjust_p && gdbarch->call_dummy_stack_adjust == 0:0x%08lx::CALL_DUMMY_STACK_ADJUST_P |
| 269 | f:2:FIX_CALL_DUMMY:void:fix_call_dummy:char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs, struct value **args, struct type *type, int gcc_p:dummy, pc, fun, nargs, args, type, gcc_p::0:0 |
| 270 | # |
| 271 | v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion::::0::::: |
| 272 | v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type::::0::::: |
| 273 | f:2:COERCE_FLOAT_TO_DOUBLE:int:coerce_float_to_double:struct type *formal, struct type *actual:formal, actual:::default_coerce_float_to_double:0 |
| 274 | f:1:GET_SAVED_REGISTER:void:get_saved_register:char *raw_buffer, int *optimized, CORE_ADDR *addrp, struct frame_info *frame, int regnum, enum lval_type *lval:raw_buffer, optimized, addrp, frame, regnum, lval::generic_get_saved_register:0 |
| 275 | # |
| 276 | f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not:0 |
| 277 | f:2:REGISTER_CONVERT_TO_VIRTUAL:void:register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to:::0:0 |
| 278 | f:2:REGISTER_CONVERT_TO_RAW:void:register_convert_to_raw:struct type *type, int regnum, char *from, char *to:type, regnum, from, to:::0:0 |
| 279 | # |
| 280 | f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, char *buf:type, buf:::generic_pointer_to_address:0 |
| 281 | f:2:ADDRESS_TO_POINTER:void:address_to_pointer:struct type *type, char *buf, CORE_ADDR addr:type, buf, addr:::generic_address_to_pointer:0 |
| 282 | # |
| 283 | f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not:0 |
| 284 | f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0 |
| 285 | f:1:PUSH_ARGUMENTS:CORE_ADDR:push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr::0:0 |
| 286 | f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0 |
| 287 | f:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0 |
| 288 | f:2:POP_FRAME:void:pop_frame:void:-:::0 |
| 289 | # |
| 290 | # I wish that these would just go away.... |
| 291 | f:2:D10V_MAKE_DADDR:CORE_ADDR:d10v_make_daddr:CORE_ADDR x:x:::0:0 |
| 292 | f:2:D10V_MAKE_IADDR:CORE_ADDR:d10v_make_iaddr:CORE_ADDR x:x:::0:0 |
| 293 | f:2:D10V_DADDR_P:int:d10v_daddr_p:CORE_ADDR x:x:::0:0 |
| 294 | f:2:D10V_IADDR_P:int:d10v_iaddr_p:CORE_ADDR x:x:::0:0 |
| 295 | f:2:D10V_CONVERT_DADDR_TO_RAW:CORE_ADDR:d10v_convert_daddr_to_raw:CORE_ADDR x:x:::0:0 |
| 296 | f:2:D10V_CONVERT_IADDR_TO_RAW:CORE_ADDR:d10v_convert_iaddr_to_raw:CORE_ADDR x:x:::0:0 |
| 297 | # |
| 298 | f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0 |
| 299 | f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0 |
| 300 | f:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0 |
| 301 | f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type:::0 |
| 302 | # |
| 303 | f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0 |
| 304 | f:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0 |
| 305 | # |
| 306 | f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0 |
| 307 | f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p:0 |
| 308 | f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0 |
| 309 | f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc:0 |
| 310 | f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint:0 |
| 311 | f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint:0 |
| 312 | v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1 |
| 313 | v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1 |
| 314 | # |
| 315 | f:2:REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address:0 |
| 316 | # |
| 317 | v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1 |
| 318 | f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not:0 |
| 319 | f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0 |
| 320 | f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0 |
| 321 | f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0 |
| 322 | f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0 |
| 323 | f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0 |
| 324 | f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0 |
| 325 | f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0 |
| 326 | # |
| 327 | F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0 |
| 328 | F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0 |
| 329 | F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0 |
| 330 | EOF |
| 331 | grep -v '^#' |
| 332 | } |
| 333 | |
| 334 | |
| 335 | # dump it out |
| 336 | if true |
| 337 | then |
| 338 | exec > new-gdbarch |
| 339 | function_list | while do_read # eval read $read |
| 340 | do |
| 341 | cat <<EOF |
| 342 | ${class} ${macro}(${actual}) |
| 343 | ${returntype} ${function} ($formal)${attrib} |
| 344 | level=${level} |
| 345 | startup=${startup} |
| 346 | default=${default} |
| 347 | invalid_p=${invalid_p} |
| 348 | valid_p=${valid_p} |
| 349 | fmt=${fmt} |
| 350 | print=${print} |
| 351 | print_p=${print_p} |
| 352 | description=${description} |
| 353 | EOF |
| 354 | if class_is_predicate_p && default_is_fallback_p |
| 355 | then |
| 356 | echo "Error: predicate function can not have a non- multi-arch default" 1>&2 |
| 357 | kill $$ |
| 358 | exit 1 |
| 359 | fi |
| 360 | done |
| 361 | exec 1>&2 |
| 362 | fi |
| 363 | |
| 364 | copyright () |
| 365 | { |
| 366 | cat <<EOF |
| 367 | /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */ |
| 368 | |
| 369 | /* Dynamic architecture support for GDB, the GNU debugger. |
| 370 | Copyright 1998-1999, Free Software Foundation, Inc. |
| 371 | |
| 372 | This file is part of GDB. |
| 373 | |
| 374 | This program is free software; you can redistribute it and/or modify |
| 375 | it under the terms of the GNU General Public License as published by |
| 376 | the Free Software Foundation; either version 2 of the License, or |
| 377 | (at your option) any later version. |
| 378 | |
| 379 | This program is distributed in the hope that it will be useful, |
| 380 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 381 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 382 | GNU General Public License for more details. |
| 383 | |
| 384 | You should have received a copy of the GNU General Public License |
| 385 | along with this program; if not, write to the Free Software |
| 386 | Foundation, Inc., 59 Temple Place - Suite 330, |
| 387 | Boston, MA 02111-1307, USA. */ |
| 388 | |
| 389 | /* This file was created with the aid of \`\`gdbarch.sh''. |
| 390 | |
| 391 | The bourn shell script \`\`gdbarch.sh'' creates the files |
| 392 | \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them |
| 393 | against the existing \`\`gdbarch.[hc]''. Any differences found |
| 394 | being reported. |
| 395 | |
| 396 | If editing this file, please also run gdbarch.sh and merge any |
| 397 | changes into that script. Conversely, when makeing sweeping changes |
| 398 | to this file, modifying gdbarch.sh and using its output may prove |
| 399 | easier. */ |
| 400 | |
| 401 | EOF |
| 402 | } |
| 403 | |
| 404 | # |
| 405 | # The .h file |
| 406 | # |
| 407 | |
| 408 | exec > new-gdbarch.h |
| 409 | copyright |
| 410 | cat <<EOF |
| 411 | #ifndef GDBARCH_H |
| 412 | #define GDBARCH_H |
| 413 | |
| 414 | struct frame_info; |
| 415 | struct value; |
| 416 | |
| 417 | |
| 418 | #ifndef GDB_MULTI_ARCH |
| 419 | #define GDB_MULTI_ARCH 0 |
| 420 | #endif |
| 421 | |
| 422 | extern struct gdbarch *current_gdbarch; |
| 423 | |
| 424 | |
| 425 | /* See gdb/doc/gdbint.texi for a discussion of the GDB_MULTI_ARCH |
| 426 | macro */ |
| 427 | |
| 428 | |
| 429 | /* If any of the following are defined, the target wasn't correctly |
| 430 | converted. */ |
| 431 | |
| 432 | #if GDB_MULTI_ARCH |
| 433 | #if defined (EXTRA_FRAME_INFO) |
| 434 | #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info" |
| 435 | #endif |
| 436 | #endif |
| 437 | |
| 438 | #if GDB_MULTI_ARCH |
| 439 | #if defined (FRAME_FIND_SAVED_REGS) |
| 440 | #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS" |
| 441 | #endif |
| 442 | #endif |
| 443 | EOF |
| 444 | |
| 445 | # function typedef's |
| 446 | echo "" |
| 447 | echo "" |
| 448 | echo "/* The following are pre-initialized by GDBARCH. */" |
| 449 | function_list | while do_read # eval read $read |
| 450 | do |
| 451 | if class_is_info_p |
| 452 | then |
| 453 | echo "" |
| 454 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" |
| 455 | echo "/* set_gdbarch_${function}() - not applicable - pre-initialized. */" |
| 456 | echo "#if GDB_MULTI_ARCH" |
| 457 | echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" |
| 458 | echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" |
| 459 | echo "#endif" |
| 460 | echo "#endif" |
| 461 | fi |
| 462 | done |
| 463 | |
| 464 | # function typedef's |
| 465 | echo "" |
| 466 | echo "" |
| 467 | echo "/* The following are initialized by the target dependant code. */" |
| 468 | function_list | while do_read # eval read $read |
| 469 | do |
| 470 | if class_is_predicate_p |
| 471 | then |
| 472 | echo "" |
| 473 | echo "#if defined (${macro})" |
| 474 | echo "/* Legacy for systems yet to multi-arch ${macro} */" |
| 475 | # echo "#if (GDB_MULTI_ARCH <= 2) && defined (${macro})" |
| 476 | echo "#define ${macro}_P() (1)" |
| 477 | echo "#endif" |
| 478 | echo "" |
| 479 | echo "/* Default predicate for non- multi-arch targets. */" |
| 480 | echo "#if (GDB_MULTI_ARCH == 0) && !defined (${macro}_P)" |
| 481 | echo "#define ${macro}_P() (0)" |
| 482 | echo "#endif" |
| 483 | echo "" |
| 484 | echo "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);" |
| 485 | echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro}_P)" |
| 486 | echo "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))" |
| 487 | echo "#endif" |
| 488 | fi |
| 489 | if class_is_variable_p |
| 490 | then |
| 491 | if default_is_fallback_p || class_is_predicate_p |
| 492 | then |
| 493 | echo "" |
| 494 | echo "/* Default (value) for non- multi-arch platforms. */" |
| 495 | echo "#if (GDB_MULTI_ARCH == 0) && !defined (${macro})" |
| 496 | echo "#define ${macro} (${default})" |
| 497 | echo "#endif" |
| 498 | fi |
| 499 | echo "" |
| 500 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" |
| 501 | echo "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});" |
| 502 | echo "#if GDB_MULTI_ARCH" |
| 503 | echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" |
| 504 | echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" |
| 505 | echo "#endif" |
| 506 | echo "#endif" |
| 507 | fi |
| 508 | if class_is_function_p |
| 509 | then |
| 510 | if default_is_fallback_p || class_is_predicate_p |
| 511 | then |
| 512 | echo "" |
| 513 | echo "/* Default (function) for non- multi-arch platforms. */" |
| 514 | echo "#if (GDB_MULTI_ARCH == 0) && !defined (${macro})" |
| 515 | if [ "${default}" = "0" ] |
| 516 | then |
| 517 | echo "#define ${macro}(${actual}) (internal_error (\"${macro}\"), 0)" |
| 518 | else |
| 519 | echo "#define ${macro}(${actual}) (${default} (${actual}))" |
| 520 | fi |
| 521 | echo "#endif" |
| 522 | fi |
| 523 | echo "" |
| 524 | echo "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});" |
| 525 | if [ "${formal}" = "void" ] |
| 526 | then |
| 527 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" |
| 528 | else |
| 529 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});" |
| 530 | fi |
| 531 | echo "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});" |
| 532 | echo "#if GDB_MULTI_ARCH" |
| 533 | echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" |
| 534 | if [ "${actual}" = "" ] |
| 535 | then |
| 536 | echo "#define ${macro}() (gdbarch_${function} (current_gdbarch))" |
| 537 | elif [ "${actual}" = "-" ] |
| 538 | then |
| 539 | echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" |
| 540 | else |
| 541 | echo "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))" |
| 542 | fi |
| 543 | echo "#endif" |
| 544 | echo "#endif" |
| 545 | fi |
| 546 | done |
| 547 | |
| 548 | # close it off |
| 549 | cat <<EOF |
| 550 | |
| 551 | extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch); |
| 552 | |
| 553 | |
| 554 | /* Mechanism for co-ordinating the selection of a specific |
| 555 | architecture. |
| 556 | |
| 557 | GDB targets (*-tdep.c) can register an interest in a specific |
| 558 | architecture. Other GDB components can register a need to maintain |
| 559 | per-architecture data. |
| 560 | |
| 561 | The mechanisms below ensures that there is only a loose connection |
| 562 | between the set-architecture command and the various GDB |
| 563 | components. Each component can independantly register their need |
| 564 | to maintain architecture specific data with gdbarch. |
| 565 | |
| 566 | Pragmatics: |
| 567 | |
| 568 | Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It |
| 569 | didn't scale. |
| 570 | |
| 571 | The more traditional mega-struct containing architecture specific |
| 572 | data for all the various GDB components was also considered. Since |
| 573 | GDB is built from a variable number of (fairly independant) |
| 574 | components it was determined that the global aproach was not |
| 575 | applicable. */ |
| 576 | |
| 577 | |
| 578 | /* Register a new architectural family with GDB. |
| 579 | |
| 580 | Register support for the specified ARCHITECTURE with GDB. When |
| 581 | gdbarch determines that the specified architecture has been |
| 582 | selected, the corresponding INIT function is called. |
| 583 | |
| 584 | -- |
| 585 | |
| 586 | The INIT function takes two parameters: INFO which contains the |
| 587 | information available to gdbarch about the (possibly new) |
| 588 | architecture; ARCHES which is a list of the previously created |
| 589 | \`\`struct gdbarch'' for this architecture. |
| 590 | |
| 591 | The INIT function parameter INFO shall, as far as possible, be |
| 592 | pre-initialized with information obtained from INFO.ABFD or |
| 593 | previously selected architecture (if similar). INIT shall ensure |
| 594 | that the INFO.BYTE_ORDER is non-zero. |
| 595 | |
| 596 | The INIT function shall return any of: NULL - indicating that it |
| 597 | doesn't reconize the selected architecture; an existing \`\`struct |
| 598 | gdbarch'' from the ARCHES list - indicating that the new |
| 599 | architecture is just a synonym for an earlier architecture (see |
| 600 | gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch'' |
| 601 | - that describes the selected architecture (see |
| 602 | gdbarch_alloc()). */ |
| 603 | |
| 604 | struct gdbarch_list |
| 605 | { |
| 606 | struct gdbarch *gdbarch; |
| 607 | struct gdbarch_list *next; |
| 608 | }; |
| 609 | |
| 610 | struct gdbarch_info |
| 611 | { |
| 612 | /* Use default: bfd_arch_unknown (ZERO). */ |
| 613 | enum bfd_architecture bfd_architecture; |
| 614 | |
| 615 | /* Use default: NULL (ZERO). */ |
| 616 | const struct bfd_arch_info *bfd_arch_info; |
| 617 | |
| 618 | /* Use default: 0 (ZERO). */ |
| 619 | int byte_order; |
| 620 | |
| 621 | /* Use default: NULL (ZERO). */ |
| 622 | bfd *abfd; |
| 623 | |
| 624 | /* Use default: NULL (ZERO). */ |
| 625 | struct gdbarch_tdep_info *tdep_info; |
| 626 | }; |
| 627 | |
| 628 | typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches); |
| 629 | |
| 630 | extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *); |
| 631 | |
| 632 | |
| 633 | /* Helper function. Search the list of ARCHES for a GDBARCH that |
| 634 | matches the information provided by INFO. */ |
| 635 | |
| 636 | extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info); |
| 637 | |
| 638 | |
| 639 | /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform |
| 640 | basic initialization using values obtained from the INFO andTDEP |
| 641 | parameters. set_gdbarch_*() functions are called to complete the |
| 642 | initialization of the object. */ |
| 643 | |
| 644 | extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep); |
| 645 | |
| 646 | |
| 647 | /* Helper function. Free a partially-constructed \`\`struct gdbarch''. */ |
| 648 | extern void gdbarch_free (struct gdbarch *); |
| 649 | |
| 650 | |
| 651 | /* Helper function. Force an update of the current architecture. Used |
| 652 | by legacy targets that have added their own target specific |
| 653 | architecture manipulation commands. |
| 654 | |
| 655 | The INFO parameter shall be fully initialized (\`\`memset (&INFO, |
| 656 | sizeof (info), 0)'' set relevant fields) before gdbarch_update() is |
| 657 | called. gdbarch_update() shall initialize any \`\`default'' fields |
| 658 | using information obtained from the previous architecture or |
| 659 | INFO.ABFD (if specified) before calling the corresponding |
| 660 | architectures INIT function. */ |
| 661 | |
| 662 | extern int gdbarch_update (struct gdbarch_info info); |
| 663 | |
| 664 | |
| 665 | |
| 666 | /* Register per-architecture data-pointer. |
| 667 | |
| 668 | Reserve space for a per-architecture data-pointer. An identifier |
| 669 | for the reserved data-pointer is returned. That identifer should |
| 670 | be saved in a local static. |
| 671 | |
| 672 | When a new architecture is selected, INIT() is called. When a |
| 673 | previous architecture is re-selected, the per-architecture |
| 674 | data-pointer for that previous architecture is restored (INIT() is |
| 675 | not called). |
| 676 | |
| 677 | INIT() shall return the initial value for the per-architecture |
| 678 | data-pointer for the current architecture. |
| 679 | |
| 680 | Multiple registrarants for any architecture are allowed (and |
| 681 | strongly encouraged). */ |
| 682 | |
| 683 | typedef void *(gdbarch_data_ftype) (void); |
| 684 | extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_ftype *init); |
| 685 | |
| 686 | /* Return the value of the per-architecture data-pointer for the |
| 687 | current architecture. */ |
| 688 | |
| 689 | extern void *gdbarch_data (struct gdbarch_data*); |
| 690 | |
| 691 | |
| 692 | |
| 693 | /* Register per-architecture memory region. |
| 694 | |
| 695 | Provide a memory-region swap mechanism. Per-architecture memory |
| 696 | region are created. These memory regions are swapped whenever the |
| 697 | architecture is changed. For a new architecture, the memory region |
| 698 | is initialized with zero (0) and the INIT function is called. |
| 699 | |
| 700 | Memory regions are swapped / initialized in the order that they are |
| 701 | registered. NULL DATA and/or INIT values can be specified. |
| 702 | |
| 703 | New code should use register_gdbarch_data(). */ |
| 704 | |
| 705 | typedef void (gdbarch_swap_ftype) (void); |
| 706 | extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init); |
| 707 | #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL) |
| 708 | |
| 709 | |
| 710 | |
| 711 | /* The target-system-dependant byte order is dynamic */ |
| 712 | |
| 713 | /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness |
| 714 | is selectable at runtime. The user can use the \`\`set endian'' |
| 715 | command to change it. TARGET_BYTE_ORDER_AUTO is nonzero when |
| 716 | target_byte_order should be auto-detected (from the program image |
| 717 | say). */ |
| 718 | |
| 719 | #if GDB_MULTI_ARCH |
| 720 | /* Multi-arch GDB is always bi-endian. */ |
| 721 | #define TARGET_BYTE_ORDER_SELECTABLE_P 1 |
| 722 | #endif |
| 723 | |
| 724 | #ifndef TARGET_BYTE_ORDER_SELECTABLE_P |
| 725 | /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE |
| 726 | when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */ |
| 727 | #ifdef TARGET_BYTE_ORDER_SELECTABLE |
| 728 | #define TARGET_BYTE_ORDER_SELECTABLE_P 1 |
| 729 | #else |
| 730 | #define TARGET_BYTE_ORDER_SELECTABLE_P 0 |
| 731 | #endif |
| 732 | #endif |
| 733 | |
| 734 | extern int target_byte_order; |
| 735 | #ifdef TARGET_BYTE_ORDER_SELECTABLE |
| 736 | /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE |
| 737 | and expect defs.h to re-define TARGET_BYTE_ORDER. */ |
| 738 | #undef TARGET_BYTE_ORDER |
| 739 | #endif |
| 740 | #ifndef TARGET_BYTE_ORDER |
| 741 | #define TARGET_BYTE_ORDER (target_byte_order + 0) |
| 742 | #endif |
| 743 | |
| 744 | extern int target_byte_order_auto; |
| 745 | #ifndef TARGET_BYTE_ORDER_AUTO |
| 746 | #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0) |
| 747 | #endif |
| 748 | |
| 749 | |
| 750 | |
| 751 | /* The target-system-dependant BFD architecture is dynamic */ |
| 752 | |
| 753 | extern int target_architecture_auto; |
| 754 | #ifndef TARGET_ARCHITECTURE_AUTO |
| 755 | #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0) |
| 756 | #endif |
| 757 | |
| 758 | extern const struct bfd_arch_info *target_architecture; |
| 759 | #ifndef TARGET_ARCHITECTURE |
| 760 | #define TARGET_ARCHITECTURE (target_architecture + 0) |
| 761 | #endif |
| 762 | |
| 763 | /* Notify the target dependant backend of a change to the selected |
| 764 | architecture. A zero return status indicates that the target did |
| 765 | not like the change. */ |
| 766 | |
| 767 | extern int (*target_architecture_hook) (const struct bfd_arch_info *); |
| 768 | |
| 769 | |
| 770 | |
| 771 | /* The target-system-dependant disassembler is semi-dynamic */ |
| 772 | |
| 773 | #include "dis-asm.h" /* Get defs for disassemble_info */ |
| 774 | |
| 775 | extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr, |
| 776 | unsigned int len, disassemble_info *info); |
| 777 | |
| 778 | extern void dis_asm_memory_error (int status, bfd_vma memaddr, |
| 779 | disassemble_info *info); |
| 780 | |
| 781 | extern void dis_asm_print_address (bfd_vma addr, |
| 782 | disassemble_info *info); |
| 783 | |
| 784 | extern int (*tm_print_insn) (bfd_vma, disassemble_info*); |
| 785 | extern disassemble_info tm_print_insn_info; |
| 786 | #ifndef TARGET_PRINT_INSN |
| 787 | #define TARGET_PRINT_INSN(vma, info) (*tm_print_insn) (vma, info) |
| 788 | #endif |
| 789 | #ifndef TARGET_PRINT_INSN_INFO |
| 790 | #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info) |
| 791 | #endif |
| 792 | |
| 793 | |
| 794 | |
| 795 | /* Explicit test for D10V architecture. |
| 796 | USE of these macro's is *STRONGLY* discouraged. */ |
| 797 | |
| 798 | #define GDB_TARGET_IS_D10V (TARGET_ARCHITECTURE->arch == bfd_arch_d10v) |
| 799 | |
| 800 | |
| 801 | /* Fallback definition for EXTRACT_STRUCT_VALUE_ADDRESS */ |
| 802 | #ifndef EXTRACT_STRUCT_VALUE_ADDRESS |
| 803 | #define EXTRACT_STRUCT_VALUE_ADDRESS_P (0) |
| 804 | #define EXTRACT_STRUCT_VALUE_ADDRESS(X) (internal_error ("gdbarch: EXTRACT_STRUCT_VALUE_ADDRESS"), 0) |
| 805 | #else |
| 806 | #ifndef EXTRACT_STRUCT_VALUE_ADDRESS_P |
| 807 | #define EXTRACT_STRUCT_VALUE_ADDRESS_P (1) |
| 808 | #endif |
| 809 | #endif |
| 810 | |
| 811 | |
| 812 | /* Set the dynamic target-system-dependant parameters (architecture, |
| 813 | byte-order, ...) using information found in the BFD */ |
| 814 | |
| 815 | extern void set_gdbarch_from_file (bfd *); |
| 816 | |
| 817 | |
| 818 | /* Explicitly set the dynamic target-system-dependant parameters based |
| 819 | on bfd_architecture and machine. */ |
| 820 | |
| 821 | extern void set_architecture_from_arch_mach (enum bfd_architecture, unsigned long); |
| 822 | |
| 823 | |
| 824 | /* Initialize the current architecture to the "first" one we find on |
| 825 | our list. */ |
| 826 | |
| 827 | extern void initialize_current_architecture (void); |
| 828 | |
| 829 | /* Helper function for targets that don't know how my arguments are |
| 830 | being passed */ |
| 831 | |
| 832 | extern int frame_num_args_unknown (struct frame_info *fi); |
| 833 | |
| 834 | |
| 835 | /* gdbarch trace variable */ |
| 836 | extern int gdbarch_debug; |
| 837 | |
| 838 | extern void gdbarch_dump (void); |
| 839 | |
| 840 | #endif |
| 841 | EOF |
| 842 | exec 1>&2 |
| 843 | #../move-if-change new-gdbarch.h gdbarch.h |
| 844 | compare_new gdbarch.h |
| 845 | |
| 846 | |
| 847 | # |
| 848 | # C file |
| 849 | # |
| 850 | |
| 851 | exec > new-gdbarch.c |
| 852 | copyright |
| 853 | cat <<EOF |
| 854 | |
| 855 | #include "defs.h" |
| 856 | #include "arch-utils.h" |
| 857 | |
| 858 | #if GDB_MULTI_ARCH |
| 859 | #include "gdbcmd.h" |
| 860 | #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */ |
| 861 | #else |
| 862 | /* Just include everything in sight so that the every old definition |
| 863 | of macro is visible. */ |
| 864 | #include "gdb_string.h" |
| 865 | #include <ctype.h> |
| 866 | #include "symtab.h" |
| 867 | #include "frame.h" |
| 868 | #include "inferior.h" |
| 869 | #include "breakpoint.h" |
| 870 | #include "gdb_wait.h" |
| 871 | #include "gdbcore.h" |
| 872 | #include "gdbcmd.h" |
| 873 | #include "target.h" |
| 874 | #include "gdbthread.h" |
| 875 | #include "annotate.h" |
| 876 | #include "symfile.h" /* for overlay functions */ |
| 877 | #endif |
| 878 | #include "symcat.h" |
| 879 | |
| 880 | |
| 881 | /* Static function declarations */ |
| 882 | |
| 883 | static void verify_gdbarch (struct gdbarch *gdbarch); |
| 884 | static void init_gdbarch_data (struct gdbarch *); |
| 885 | static void init_gdbarch_swap (struct gdbarch *); |
| 886 | static void swapout_gdbarch_swap (struct gdbarch *); |
| 887 | static void swapin_gdbarch_swap (struct gdbarch *); |
| 888 | |
| 889 | /* Convenience macro for allocting typesafe memory. */ |
| 890 | |
| 891 | #ifndef XMALLOC |
| 892 | #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE)) |
| 893 | #endif |
| 894 | |
| 895 | |
| 896 | /* Non-zero if we want to trace architecture code. */ |
| 897 | |
| 898 | #ifndef GDBARCH_DEBUG |
| 899 | #define GDBARCH_DEBUG 0 |
| 900 | #endif |
| 901 | int gdbarch_debug = GDBARCH_DEBUG; |
| 902 | |
| 903 | EOF |
| 904 | |
| 905 | # gdbarch open the gdbarch object |
| 906 | echo "" |
| 907 | echo "/* Maintain the struct gdbarch object */" |
| 908 | echo "" |
| 909 | echo "struct gdbarch" |
| 910 | echo "{" |
| 911 | echo " /* basic architectural information */" |
| 912 | function_list | while do_read # eval read $read |
| 913 | do |
| 914 | if class_is_info_p |
| 915 | then |
| 916 | echo " ${returntype} ${function};" |
| 917 | fi |
| 918 | done |
| 919 | echo "" |
| 920 | echo " /* target specific vector. */" |
| 921 | echo " struct gdbarch_tdep *tdep;" |
| 922 | echo "" |
| 923 | echo " /* per-architecture data-pointers */" |
| 924 | echo " int nr_data;" |
| 925 | echo " void **data;" |
| 926 | echo "" |
| 927 | echo " /* per-architecture swap-regions */" |
| 928 | echo " struct gdbarch_swap *swap;" |
| 929 | echo "" |
| 930 | cat <<EOF |
| 931 | /* Multi-arch values. |
| 932 | |
| 933 | When extending this structure you must: |
| 934 | |
| 935 | Add the field below. |
| 936 | |
| 937 | Declare set/get functions and define the corresponding |
| 938 | macro in gdbarch.h. |
| 939 | |
| 940 | gdbarch_alloc(): If zero/NULL is not a suitable default, |
| 941 | initialize the new field. |
| 942 | |
| 943 | verify_gdbarch(): Confirm that the target updated the field |
| 944 | correctly. |
| 945 | |
| 946 | gdbarch_dump(): Add a fprintf_unfiltered call to so that the new |
| 947 | field is dumped out |
| 948 | |
| 949 | \`\`startup_gdbarch()'': Append an initial value to the static |
| 950 | variable (base values on the host's c-type system). |
| 951 | |
| 952 | get_gdbarch(): Implement the set/get functions (probably using |
| 953 | the macro's as shortcuts). |
| 954 | |
| 955 | */ |
| 956 | |
| 957 | EOF |
| 958 | function_list | while do_read # eval read $read |
| 959 | do |
| 960 | if class_is_variable_p |
| 961 | then |
| 962 | echo " ${returntype} ${function};" |
| 963 | elif class_is_function_p |
| 964 | then |
| 965 | echo " gdbarch_${function}_ftype *${function}${attrib};" |
| 966 | fi |
| 967 | done |
| 968 | echo "};" |
| 969 | |
| 970 | # A pre-initialized vector |
| 971 | echo "" |
| 972 | echo "" |
| 973 | cat <<EOF |
| 974 | /* The default architecture uses host values (for want of a better |
| 975 | choice). */ |
| 976 | EOF |
| 977 | echo "" |
| 978 | echo "extern const struct bfd_arch_info bfd_default_arch_struct;" |
| 979 | echo "" |
| 980 | echo "struct gdbarch startup_gdbarch = {" |
| 981 | echo " /* basic architecture information */" |
| 982 | function_list | while do_read # eval read $read |
| 983 | do |
| 984 | if class_is_info_p |
| 985 | then |
| 986 | echo " ${startup}," |
| 987 | fi |
| 988 | done |
| 989 | cat <<EOF |
| 990 | /* target specific vector */ |
| 991 | NULL, |
| 992 | /*per-architecture data-pointers and swap regions */ |
| 993 | 0, NULL, NULL, |
| 994 | /* Multi-arch values */ |
| 995 | EOF |
| 996 | function_list | while do_read # eval read $read |
| 997 | do |
| 998 | if class_is_function_p || class_is_variable_p |
| 999 | then |
| 1000 | echo " ${startup}," |
| 1001 | fi |
| 1002 | done |
| 1003 | cat <<EOF |
| 1004 | /* startup_gdbarch() */ |
| 1005 | }; |
| 1006 | struct gdbarch *current_gdbarch = &startup_gdbarch; |
| 1007 | EOF |
| 1008 | |
| 1009 | # Create a new gdbarch struct |
| 1010 | echo "" |
| 1011 | echo "" |
| 1012 | cat <<EOF |
| 1013 | /* Create a new \`\`struct gdbarch'' based in information provided by |
| 1014 | \`\`struct gdbarch_info''. */ |
| 1015 | EOF |
| 1016 | echo "" |
| 1017 | cat <<EOF |
| 1018 | struct gdbarch * |
| 1019 | gdbarch_alloc (const struct gdbarch_info *info, |
| 1020 | struct gdbarch_tdep *tdep) |
| 1021 | { |
| 1022 | struct gdbarch *gdbarch = XMALLOC (struct gdbarch); |
| 1023 | memset (gdbarch, 0, sizeof (*gdbarch)); |
| 1024 | |
| 1025 | gdbarch->tdep = tdep; |
| 1026 | EOF |
| 1027 | echo "" |
| 1028 | function_list | while do_read # eval read $read |
| 1029 | do |
| 1030 | if class_is_info_p |
| 1031 | then |
| 1032 | echo " gdbarch->${function} = info->${function};" |
| 1033 | fi |
| 1034 | done |
| 1035 | echo "" |
| 1036 | echo " /* Force the explicit initialization of these. */" |
| 1037 | function_list | while do_read # eval read $read |
| 1038 | do |
| 1039 | if class_is_function_p || class_is_variable_p |
| 1040 | then |
| 1041 | if [ "${default}" != "" -a "${default}" != "0" ] |
| 1042 | then |
| 1043 | echo " gdbarch->${function} = ${default};" |
| 1044 | fi |
| 1045 | fi |
| 1046 | done |
| 1047 | cat <<EOF |
| 1048 | /* gdbarch_alloc() */ |
| 1049 | |
| 1050 | return gdbarch; |
| 1051 | } |
| 1052 | EOF |
| 1053 | |
| 1054 | # Free a gdbarch struct. |
| 1055 | echo "" |
| 1056 | echo "" |
| 1057 | cat <<EOF |
| 1058 | /* Free a gdbarch struct. This should never happen in normal |
| 1059 | operation --- once you've created a gdbarch, you keep it around. |
| 1060 | However, if an architecture's init function encounters an error |
| 1061 | building the structure, it may need to clean up a partially |
| 1062 | constructed gdbarch. */ |
| 1063 | void |
| 1064 | gdbarch_free (struct gdbarch *arch) |
| 1065 | { |
| 1066 | /* At the moment, this is trivial. */ |
| 1067 | free (arch); |
| 1068 | } |
| 1069 | EOF |
| 1070 | |
| 1071 | # verify a new architecture |
| 1072 | echo "" |
| 1073 | echo "" |
| 1074 | echo "/* Ensure that all values in a GDBARCH are reasonable. */" |
| 1075 | echo "" |
| 1076 | cat <<EOF |
| 1077 | static void |
| 1078 | verify_gdbarch (struct gdbarch *gdbarch) |
| 1079 | { |
| 1080 | /* Only perform sanity checks on a multi-arch target. */ |
| 1081 | if (GDB_MULTI_ARCH <= 0) |
| 1082 | return; |
| 1083 | /* fundamental */ |
| 1084 | if (gdbarch->byte_order == 0) |
| 1085 | internal_error ("verify_gdbarch: byte-order unset"); |
| 1086 | if (gdbarch->bfd_arch_info == NULL) |
| 1087 | internal_error ("verify_gdbarch: bfd_arch_info unset"); |
| 1088 | /* Check those that need to be defined for the given multi-arch level. */ |
| 1089 | EOF |
| 1090 | function_list | while do_read # eval read $read |
| 1091 | do |
| 1092 | if class_is_function_p || class_is_variable_p |
| 1093 | then |
| 1094 | if [ "${invalid_p}" = "0" ] |
| 1095 | then |
| 1096 | echo " /* Skip verify of ${function}, invalid_p == 0 */" |
| 1097 | elif class_is_predicate_p |
| 1098 | then |
| 1099 | echo " /* Skip verify of ${function}, has predicate */" |
| 1100 | elif [ "${invalid_p}" ] |
| 1101 | then |
| 1102 | echo " if ((GDB_MULTI_ARCH >= ${level})" |
| 1103 | echo " && (${invalid_p}))" |
| 1104 | echo " internal_error (\"gdbarch: verify_gdbarch: ${function} invalid\");" |
| 1105 | elif [ "${default}" ] |
| 1106 | then |
| 1107 | echo " if ((GDB_MULTI_ARCH >= ${level})" |
| 1108 | echo " && (gdbarch->${function} == ${default}))" |
| 1109 | echo " internal_error (\"gdbarch: verify_gdbarch: ${function} invalid\");" |
| 1110 | fi |
| 1111 | fi |
| 1112 | done |
| 1113 | cat <<EOF |
| 1114 | } |
| 1115 | EOF |
| 1116 | |
| 1117 | # dump the structure |
| 1118 | echo "" |
| 1119 | echo "" |
| 1120 | echo "/* Print out the details of the current architecture. */" |
| 1121 | echo "" |
| 1122 | cat <<EOF |
| 1123 | void |
| 1124 | gdbarch_dump (void) |
| 1125 | { |
| 1126 | EOF |
| 1127 | function_list | while do_read # eval read $read |
| 1128 | do |
| 1129 | echo "#ifdef ${macro}" |
| 1130 | if class_is_function_p |
| 1131 | then |
| 1132 | echo " fprintf_unfiltered (gdb_stdlog," |
| 1133 | echo " \"gdbarch_update: ${macro} = 0x%08lx\\n\"," |
| 1134 | echo " (long) current_gdbarch->${function}" |
| 1135 | echo " /*${macro} ()*/);" |
| 1136 | else |
| 1137 | if [ "${print_p}" ] |
| 1138 | then |
| 1139 | echo " if (${print_p})" |
| 1140 | echo " fprintf_unfiltered (gdb_stdlog," |
| 1141 | echo " \"gdbarch_update: ${macro} = ${fmt}\\n\"," |
| 1142 | echo " ${print});" |
| 1143 | else |
| 1144 | echo " fprintf_unfiltered (gdb_stdlog," |
| 1145 | echo " \"gdbarch_update: ${macro} = ${fmt}\\n\"," |
| 1146 | echo " ${print});" |
| 1147 | fi |
| 1148 | fi |
| 1149 | echo "#endif" |
| 1150 | done |
| 1151 | cat <<EOF |
| 1152 | fprintf_unfiltered (gdb_stdlog, |
| 1153 | "gdbarch_update: GDB_MULTI_ARCH = %d\\n", |
| 1154 | GDB_MULTI_ARCH); |
| 1155 | } |
| 1156 | EOF |
| 1157 | |
| 1158 | |
| 1159 | # GET/SET |
| 1160 | echo "" |
| 1161 | cat <<EOF |
| 1162 | struct gdbarch_tdep * |
| 1163 | gdbarch_tdep (struct gdbarch *gdbarch) |
| 1164 | { |
| 1165 | if (gdbarch_debug >= 2) |
| 1166 | fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\n"); |
| 1167 | return gdbarch->tdep; |
| 1168 | } |
| 1169 | EOF |
| 1170 | echo "" |
| 1171 | function_list | while do_read # eval read $read |
| 1172 | do |
| 1173 | if class_is_predicate_p |
| 1174 | then |
| 1175 | echo "" |
| 1176 | echo "int" |
| 1177 | echo "gdbarch_${function}_p (struct gdbarch *gdbarch)" |
| 1178 | echo "{" |
| 1179 | if [ "${valid_p}" ] |
| 1180 | then |
| 1181 | echo " return ${valid_p};" |
| 1182 | else |
| 1183 | echo "#error \"gdbarch_${function}_p: not defined\"" |
| 1184 | fi |
| 1185 | echo "}" |
| 1186 | fi |
| 1187 | if class_is_function_p |
| 1188 | then |
| 1189 | echo "" |
| 1190 | echo "${returntype}" |
| 1191 | if [ "${formal}" = "void" ] |
| 1192 | then |
| 1193 | echo "gdbarch_${function} (struct gdbarch *gdbarch)" |
| 1194 | else |
| 1195 | echo "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})" |
| 1196 | fi |
| 1197 | echo "{" |
| 1198 | echo " if (gdbarch->${function} == 0)" |
| 1199 | echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" |
| 1200 | echo " if (gdbarch_debug >= 2)" |
| 1201 | echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" |
| 1202 | test "${actual}" = "-" && actual="" |
| 1203 | if [ "${returntype}" = "void" ] |
| 1204 | then |
| 1205 | echo " gdbarch->${function} (${actual});" |
| 1206 | else |
| 1207 | echo " return gdbarch->${function} (${actual});" |
| 1208 | fi |
| 1209 | echo "}" |
| 1210 | echo "" |
| 1211 | echo "void" |
| 1212 | echo "set_gdbarch_${function} (struct gdbarch *gdbarch," |
| 1213 | echo " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})" |
| 1214 | echo "{" |
| 1215 | echo " gdbarch->${function} = ${function};" |
| 1216 | echo "}" |
| 1217 | elif class_is_variable_p |
| 1218 | then |
| 1219 | echo "" |
| 1220 | echo "${returntype}" |
| 1221 | echo "gdbarch_${function} (struct gdbarch *gdbarch)" |
| 1222 | echo "{" |
| 1223 | if [ "${invalid_p}" = "0" ] |
| 1224 | then |
| 1225 | echo " /* Skip verify of ${function}, invalid_p == 0 */" |
| 1226 | elif [ "${invalid_p}" ] |
| 1227 | then |
| 1228 | echo " if (${invalid_p})" |
| 1229 | echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" |
| 1230 | elif [ "${default}" ] |
| 1231 | then |
| 1232 | echo " if (gdbarch->${function} == ${default})" |
| 1233 | echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" |
| 1234 | fi |
| 1235 | echo " if (gdbarch_debug >= 2)" |
| 1236 | echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" |
| 1237 | echo " return gdbarch->${function};" |
| 1238 | echo "}" |
| 1239 | echo "" |
| 1240 | echo "void" |
| 1241 | echo "set_gdbarch_${function} (struct gdbarch *gdbarch," |
| 1242 | echo " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})" |
| 1243 | echo "{" |
| 1244 | echo " gdbarch->${function} = ${function};" |
| 1245 | echo "}" |
| 1246 | elif class_is_info_p |
| 1247 | then |
| 1248 | echo "" |
| 1249 | echo "${returntype}" |
| 1250 | echo "gdbarch_${function} (struct gdbarch *gdbarch)" |
| 1251 | echo "{" |
| 1252 | echo " if (gdbarch_debug >= 2)" |
| 1253 | echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" |
| 1254 | echo " return gdbarch->${function};" |
| 1255 | echo "}" |
| 1256 | fi |
| 1257 | done |
| 1258 | |
| 1259 | # All the trailing guff |
| 1260 | cat <<EOF |
| 1261 | |
| 1262 | |
| 1263 | /* Keep a registrary of per-architecture data-pointers required by GDB |
| 1264 | modules. */ |
| 1265 | |
| 1266 | struct gdbarch_data |
| 1267 | { |
| 1268 | int index; |
| 1269 | }; |
| 1270 | |
| 1271 | struct gdbarch_data_registration |
| 1272 | { |
| 1273 | gdbarch_data_ftype *init; |
| 1274 | struct gdbarch_data *data; |
| 1275 | struct gdbarch_data_registration *next; |
| 1276 | }; |
| 1277 | |
| 1278 | struct gdbarch_data_registrary |
| 1279 | { |
| 1280 | int nr; |
| 1281 | struct gdbarch_data_registration *registrations; |
| 1282 | }; |
| 1283 | |
| 1284 | struct gdbarch_data_registrary gdbarch_data_registrary = |
| 1285 | { |
| 1286 | 0, NULL, |
| 1287 | }; |
| 1288 | |
| 1289 | struct gdbarch_data * |
| 1290 | register_gdbarch_data (gdbarch_data_ftype *init) |
| 1291 | { |
| 1292 | struct gdbarch_data_registration **curr; |
| 1293 | for (curr = &gdbarch_data_registrary.registrations; |
| 1294 | (*curr) != NULL; |
| 1295 | curr = &(*curr)->next); |
| 1296 | (*curr) = XMALLOC (struct gdbarch_data_registration); |
| 1297 | (*curr)->next = NULL; |
| 1298 | (*curr)->init = init; |
| 1299 | (*curr)->data = XMALLOC (struct gdbarch_data); |
| 1300 | (*curr)->data->index = gdbarch_data_registrary.nr++; |
| 1301 | return (*curr)->data; |
| 1302 | } |
| 1303 | |
| 1304 | |
| 1305 | /* Walk through all the registered users initializing each in turn. */ |
| 1306 | |
| 1307 | static void |
| 1308 | init_gdbarch_data (struct gdbarch *gdbarch) |
| 1309 | { |
| 1310 | struct gdbarch_data_registration *rego; |
| 1311 | gdbarch->nr_data = gdbarch_data_registrary.nr + 1; |
| 1312 | gdbarch->data = xmalloc (sizeof (void*) * gdbarch->nr_data); |
| 1313 | for (rego = gdbarch_data_registrary.registrations; |
| 1314 | rego != NULL; |
| 1315 | rego = rego->next) |
| 1316 | { |
| 1317 | if (rego->data->index < gdbarch->nr_data) |
| 1318 | gdbarch->data[rego->data->index] = rego->init (); |
| 1319 | } |
| 1320 | } |
| 1321 | |
| 1322 | |
| 1323 | /* Return the current value of the specified per-architecture |
| 1324 | data-pointer. */ |
| 1325 | |
| 1326 | void * |
| 1327 | gdbarch_data (data) |
| 1328 | struct gdbarch_data *data; |
| 1329 | { |
| 1330 | if (data->index >= current_gdbarch->nr_data) |
| 1331 | internal_error ("gdbarch_data: request for non-existant data."); |
| 1332 | return current_gdbarch->data[data->index]; |
| 1333 | } |
| 1334 | |
| 1335 | |
| 1336 | |
| 1337 | /* Keep a registrary of swaped data required by GDB modules. */ |
| 1338 | |
| 1339 | struct gdbarch_swap |
| 1340 | { |
| 1341 | void *swap; |
| 1342 | struct gdbarch_swap_registration *source; |
| 1343 | struct gdbarch_swap *next; |
| 1344 | }; |
| 1345 | |
| 1346 | struct gdbarch_swap_registration |
| 1347 | { |
| 1348 | void *data; |
| 1349 | unsigned long sizeof_data; |
| 1350 | gdbarch_swap_ftype *init; |
| 1351 | struct gdbarch_swap_registration *next; |
| 1352 | }; |
| 1353 | |
| 1354 | struct gdbarch_swap_registrary |
| 1355 | { |
| 1356 | int nr; |
| 1357 | struct gdbarch_swap_registration *registrations; |
| 1358 | }; |
| 1359 | |
| 1360 | struct gdbarch_swap_registrary gdbarch_swap_registrary = |
| 1361 | { |
| 1362 | 0, NULL, |
| 1363 | }; |
| 1364 | |
| 1365 | void |
| 1366 | register_gdbarch_swap (void *data, |
| 1367 | unsigned long sizeof_data, |
| 1368 | gdbarch_swap_ftype *init) |
| 1369 | { |
| 1370 | struct gdbarch_swap_registration **rego; |
| 1371 | for (rego = &gdbarch_swap_registrary.registrations; |
| 1372 | (*rego) != NULL; |
| 1373 | rego = &(*rego)->next); |
| 1374 | (*rego) = XMALLOC (struct gdbarch_swap_registration); |
| 1375 | (*rego)->next = NULL; |
| 1376 | (*rego)->init = init; |
| 1377 | (*rego)->data = data; |
| 1378 | (*rego)->sizeof_data = sizeof_data; |
| 1379 | } |
| 1380 | |
| 1381 | |
| 1382 | static void |
| 1383 | init_gdbarch_swap (struct gdbarch *gdbarch) |
| 1384 | { |
| 1385 | struct gdbarch_swap_registration *rego; |
| 1386 | struct gdbarch_swap **curr = &gdbarch->swap; |
| 1387 | for (rego = gdbarch_swap_registrary.registrations; |
| 1388 | rego != NULL; |
| 1389 | rego = rego->next) |
| 1390 | { |
| 1391 | if (rego->data != NULL) |
| 1392 | { |
| 1393 | (*curr) = XMALLOC (struct gdbarch_swap); |
| 1394 | (*curr)->source = rego; |
| 1395 | (*curr)->swap = xmalloc (rego->sizeof_data); |
| 1396 | (*curr)->next = NULL; |
| 1397 | memset (rego->data, 0, rego->sizeof_data); |
| 1398 | curr = &(*curr)->next; |
| 1399 | } |
| 1400 | if (rego->init != NULL) |
| 1401 | rego->init (); |
| 1402 | } |
| 1403 | } |
| 1404 | |
| 1405 | static void |
| 1406 | swapout_gdbarch_swap (struct gdbarch *gdbarch) |
| 1407 | { |
| 1408 | struct gdbarch_swap *curr; |
| 1409 | for (curr = gdbarch->swap; |
| 1410 | curr != NULL; |
| 1411 | curr = curr->next) |
| 1412 | memcpy (curr->swap, curr->source->data, curr->source->sizeof_data); |
| 1413 | } |
| 1414 | |
| 1415 | static void |
| 1416 | swapin_gdbarch_swap (struct gdbarch *gdbarch) |
| 1417 | { |
| 1418 | struct gdbarch_swap *curr; |
| 1419 | for (curr = gdbarch->swap; |
| 1420 | curr != NULL; |
| 1421 | curr = curr->next) |
| 1422 | memcpy (curr->source->data, curr->swap, curr->source->sizeof_data); |
| 1423 | } |
| 1424 | |
| 1425 | |
| 1426 | /* Keep a registrary of the architectures known by GDB. */ |
| 1427 | |
| 1428 | struct gdbarch_init_registration |
| 1429 | { |
| 1430 | enum bfd_architecture bfd_architecture; |
| 1431 | gdbarch_init_ftype *init; |
| 1432 | struct gdbarch_list *arches; |
| 1433 | struct gdbarch_init_registration *next; |
| 1434 | }; |
| 1435 | |
| 1436 | static struct gdbarch_init_registration *gdbarch_init_registrary = NULL; |
| 1437 | |
| 1438 | void |
| 1439 | register_gdbarch_init (enum bfd_architecture bfd_architecture, |
| 1440 | gdbarch_init_ftype *init) |
| 1441 | { |
| 1442 | struct gdbarch_init_registration **curr; |
| 1443 | const struct bfd_arch_info *bfd_arch_info; |
| 1444 | /* Check that BFD reconizes this architecture */ |
| 1445 | bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0); |
| 1446 | if (bfd_arch_info == NULL) |
| 1447 | { |
| 1448 | internal_error ("gdbarch: Attempt to register unknown architecture (%d)", bfd_architecture); |
| 1449 | } |
| 1450 | /* Check that we haven't seen this architecture before */ |
| 1451 | for (curr = &gdbarch_init_registrary; |
| 1452 | (*curr) != NULL; |
| 1453 | curr = &(*curr)->next) |
| 1454 | { |
| 1455 | if (bfd_architecture == (*curr)->bfd_architecture) |
| 1456 | internal_error ("gdbarch: Duplicate registraration of architecture (%s)", |
| 1457 | bfd_arch_info->printable_name); |
| 1458 | } |
| 1459 | /* log it */ |
| 1460 | if (gdbarch_debug) |
| 1461 | fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n", |
| 1462 | bfd_arch_info->printable_name, |
| 1463 | (long) init); |
| 1464 | /* Append it */ |
| 1465 | (*curr) = XMALLOC (struct gdbarch_init_registration); |
| 1466 | (*curr)->bfd_architecture = bfd_architecture; |
| 1467 | (*curr)->init = init; |
| 1468 | (*curr)->arches = NULL; |
| 1469 | (*curr)->next = NULL; |
| 1470 | } |
| 1471 | |
| 1472 | |
| 1473 | |
| 1474 | /* Look for an architecture using gdbarch_info. Base search on only |
| 1475 | BFD_ARCH_INFO and BYTE_ORDER. */ |
| 1476 | |
| 1477 | struct gdbarch_list * |
| 1478 | gdbarch_list_lookup_by_info (struct gdbarch_list *arches, |
| 1479 | const struct gdbarch_info *info) |
| 1480 | { |
| 1481 | for (; arches != NULL; arches = arches->next) |
| 1482 | { |
| 1483 | if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info) |
| 1484 | continue; |
| 1485 | if (info->byte_order != arches->gdbarch->byte_order) |
| 1486 | continue; |
| 1487 | return arches; |
| 1488 | } |
| 1489 | return NULL; |
| 1490 | } |
| 1491 | |
| 1492 | |
| 1493 | /* Update the current architecture. Return ZERO if the update request |
| 1494 | failed. */ |
| 1495 | |
| 1496 | int |
| 1497 | gdbarch_update (struct gdbarch_info info) |
| 1498 | { |
| 1499 | struct gdbarch *new_gdbarch; |
| 1500 | struct gdbarch_list **list; |
| 1501 | struct gdbarch_init_registration *rego; |
| 1502 | |
| 1503 | /* Fill in any missing bits. Most important is the bfd_architecture |
| 1504 | which is used to select the target architecture. */ |
| 1505 | if (info.bfd_architecture == bfd_arch_unknown) |
| 1506 | { |
| 1507 | if (info.bfd_arch_info != NULL) |
| 1508 | info.bfd_architecture = info.bfd_arch_info->arch; |
| 1509 | else if (info.abfd != NULL) |
| 1510 | info.bfd_architecture = bfd_get_arch (info.abfd); |
| 1511 | /* FIXME - should query BFD for its default architecture. */ |
| 1512 | else |
| 1513 | info.bfd_architecture = current_gdbarch->bfd_arch_info->arch; |
| 1514 | } |
| 1515 | if (info.bfd_arch_info == NULL) |
| 1516 | { |
| 1517 | if (target_architecture_auto && info.abfd != NULL) |
| 1518 | info.bfd_arch_info = bfd_get_arch_info (info.abfd); |
| 1519 | else |
| 1520 | info.bfd_arch_info = current_gdbarch->bfd_arch_info; |
| 1521 | } |
| 1522 | if (info.byte_order == 0) |
| 1523 | { |
| 1524 | if (target_byte_order_auto && info.abfd != NULL) |
| 1525 | info.byte_order = (bfd_big_endian (info.abfd) ? BIG_ENDIAN |
| 1526 | : bfd_little_endian (info.abfd) ? LITTLE_ENDIAN |
| 1527 | : 0); |
| 1528 | else |
| 1529 | info.byte_order = current_gdbarch->byte_order; |
| 1530 | /* FIXME - should query BFD for its default byte-order. */ |
| 1531 | } |
| 1532 | /* A default for abfd? */ |
| 1533 | |
| 1534 | /* Find the target that knows about this architecture. */ |
| 1535 | for (rego = gdbarch_init_registrary; |
| 1536 | rego != NULL && rego->bfd_architecture != info.bfd_architecture; |
| 1537 | rego = rego->next); |
| 1538 | if (rego == NULL) |
| 1539 | { |
| 1540 | if (gdbarch_debug) |
| 1541 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\n"); |
| 1542 | return 0; |
| 1543 | } |
| 1544 | |
| 1545 | if (gdbarch_debug) |
| 1546 | { |
| 1547 | fprintf_unfiltered (gdb_stdlog, |
| 1548 | "gdbarch_update: info.bfd_architecture %d (%s)\n", |
| 1549 | info.bfd_architecture, |
| 1550 | bfd_lookup_arch (info.bfd_architecture, 0)->printable_name); |
| 1551 | fprintf_unfiltered (gdb_stdlog, |
| 1552 | "gdbarch_update: info.bfd_arch_info %s\n", |
| 1553 | (info.bfd_arch_info != NULL |
| 1554 | ? info.bfd_arch_info->printable_name |
| 1555 | : "(null)")); |
| 1556 | fprintf_unfiltered (gdb_stdlog, |
| 1557 | "gdbarch_update: info.byte_order %d (%s)\n", |
| 1558 | info.byte_order, |
| 1559 | (info.byte_order == BIG_ENDIAN ? "big" |
| 1560 | : info.byte_order == LITTLE_ENDIAN ? "little" |
| 1561 | : "default")); |
| 1562 | fprintf_unfiltered (gdb_stdlog, |
| 1563 | "gdbarch_update: info.abfd 0x%lx\n", |
| 1564 | (long) info.abfd); |
| 1565 | fprintf_unfiltered (gdb_stdlog, |
| 1566 | "gdbarch_update: info.tdep_info 0x%lx\n", |
| 1567 | (long) info.tdep_info); |
| 1568 | } |
| 1569 | |
| 1570 | /* Ask the target for a replacement architecture. */ |
| 1571 | new_gdbarch = rego->init (info, rego->arches); |
| 1572 | |
| 1573 | /* Did the target like it? No. Reject the change. */ |
| 1574 | if (new_gdbarch == NULL) |
| 1575 | { |
| 1576 | if (gdbarch_debug) |
| 1577 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\n"); |
| 1578 | return 0; |
| 1579 | } |
| 1580 | |
| 1581 | /* Did the architecture change? No. Do nothing. */ |
| 1582 | if (current_gdbarch == new_gdbarch) |
| 1583 | { |
| 1584 | if (gdbarch_debug) |
| 1585 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\n", |
| 1586 | (long) new_gdbarch, |
| 1587 | new_gdbarch->bfd_arch_info->printable_name); |
| 1588 | return 1; |
| 1589 | } |
| 1590 | |
| 1591 | /* Swap all data belonging to the old target out */ |
| 1592 | swapout_gdbarch_swap (current_gdbarch); |
| 1593 | |
| 1594 | /* Is this a pre-existing architecture? Yes. Swap it in. */ |
| 1595 | for (list = ®o->arches; |
| 1596 | (*list) != NULL; |
| 1597 | list = &(*list)->next) |
| 1598 | { |
| 1599 | if ((*list)->gdbarch == new_gdbarch) |
| 1600 | { |
| 1601 | if (gdbarch_debug) |
| 1602 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n", |
| 1603 | (long) new_gdbarch, |
| 1604 | new_gdbarch->bfd_arch_info->printable_name); |
| 1605 | current_gdbarch = new_gdbarch; |
| 1606 | swapin_gdbarch_swap (new_gdbarch); |
| 1607 | return 1; |
| 1608 | } |
| 1609 | } |
| 1610 | |
| 1611 | /* Append this new architecture to this targets list. */ |
| 1612 | (*list) = XMALLOC (struct gdbarch_list); |
| 1613 | (*list)->next = NULL; |
| 1614 | (*list)->gdbarch = new_gdbarch; |
| 1615 | |
| 1616 | /* Switch to this new architecture. Dump it out. */ |
| 1617 | current_gdbarch = new_gdbarch; |
| 1618 | if (gdbarch_debug) |
| 1619 | { |
| 1620 | fprintf_unfiltered (gdb_stdlog, |
| 1621 | "gdbarch_update: New architecture 0x%08lx (%s) selected\n", |
| 1622 | (long) new_gdbarch, |
| 1623 | new_gdbarch->bfd_arch_info->printable_name); |
| 1624 | gdbarch_dump (); |
| 1625 | } |
| 1626 | |
| 1627 | /* Check that the newly installed architecture is valid. */ |
| 1628 | verify_gdbarch (new_gdbarch); |
| 1629 | |
| 1630 | /* Initialize the per-architecture memory (swap) areas. |
| 1631 | CURRENT_GDBARCH must be update before these modules are |
| 1632 | called. */ |
| 1633 | init_gdbarch_swap (new_gdbarch); |
| 1634 | |
| 1635 | /* Initialize the per-architecture data-pointer of all parties that |
| 1636 | registered an interest in this architecture. CURRENT_GDBARCH |
| 1637 | must be updated before these modules are called. */ |
| 1638 | init_gdbarch_data (new_gdbarch); |
| 1639 | |
| 1640 | return 1; |
| 1641 | } |
| 1642 | |
| 1643 | |
| 1644 | |
| 1645 | /* Functions to manipulate the endianness of the target. */ |
| 1646 | |
| 1647 | #ifdef TARGET_BYTE_ORDER_SELECTABLE |
| 1648 | /* compat - Catch old targets that expect a selectable byte-order to |
| 1649 | default to BIG_ENDIAN */ |
| 1650 | #ifndef TARGET_BYTE_ORDER_DEFAULT |
| 1651 | #define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN |
| 1652 | #endif |
| 1653 | #endif |
| 1654 | #if !TARGET_BYTE_ORDER_SELECTABLE_P |
| 1655 | #ifndef TARGET_BYTE_ORDER_DEFAULT |
| 1656 | /* compat - Catch old non byte-order selectable targets that do not |
| 1657 | define TARGET_BYTE_ORDER_DEFAULT and instead expect |
| 1658 | TARGET_BYTE_ORDER to be used as the default. For targets that |
| 1659 | defined neither TARGET_BYTE_ORDER nor TARGET_BYTE_ORDER_DEFAULT the |
| 1660 | below will get a strange compiler warning. */ |
| 1661 | #define TARGET_BYTE_ORDER_DEFAULT TARGET_BYTE_ORDER |
| 1662 | #endif |
| 1663 | #endif |
| 1664 | #ifndef TARGET_BYTE_ORDER_DEFAULT |
| 1665 | #define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN /* arbitrary */ |
| 1666 | #endif |
| 1667 | int target_byte_order = TARGET_BYTE_ORDER_DEFAULT; |
| 1668 | int target_byte_order_auto = 1; |
| 1669 | |
| 1670 | /* Chain containing the \"set endian\" commands. */ |
| 1671 | static struct cmd_list_element *endianlist = NULL; |
| 1672 | |
| 1673 | /* Called by \`\`show endian''. */ |
| 1674 | static void |
| 1675 | show_endian (char *args, int from_tty) |
| 1676 | { |
| 1677 | char *msg = |
| 1678 | (TARGET_BYTE_ORDER_AUTO |
| 1679 | ? "The target endianness is set automatically (currently %s endian)\n" |
| 1680 | : "The target is assumed to be %s endian\n"); |
| 1681 | printf_unfiltered (msg, (TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little")); |
| 1682 | } |
| 1683 | |
| 1684 | /* Called if the user enters \`\`set endian'' without an argument. */ |
| 1685 | static void |
| 1686 | set_endian (char *args, int from_tty) |
| 1687 | { |
| 1688 | printf_unfiltered ("\"set endian\" must be followed by \"auto\", \"big\" or \"little\".\n"); |
| 1689 | show_endian (args, from_tty); |
| 1690 | } |
| 1691 | |
| 1692 | /* Called by \`\`set endian big''. */ |
| 1693 | static void |
| 1694 | set_endian_big (char *args, int from_tty) |
| 1695 | { |
| 1696 | if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| 1697 | { |
| 1698 | target_byte_order = BIG_ENDIAN; |
| 1699 | target_byte_order_auto = 0; |
| 1700 | if (GDB_MULTI_ARCH) |
| 1701 | { |
| 1702 | struct gdbarch_info info; |
| 1703 | memset (&info, 0, sizeof info); |
| 1704 | info.byte_order = BIG_ENDIAN; |
| 1705 | gdbarch_update (info); |
| 1706 | } |
| 1707 | } |
| 1708 | else |
| 1709 | { |
| 1710 | printf_unfiltered ("Byte order is not selectable."); |
| 1711 | show_endian (args, from_tty); |
| 1712 | } |
| 1713 | } |
| 1714 | |
| 1715 | /* Called by \`\`set endian little''. */ |
| 1716 | static void |
| 1717 | set_endian_little (char *args, int from_tty) |
| 1718 | { |
| 1719 | if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| 1720 | { |
| 1721 | target_byte_order = LITTLE_ENDIAN; |
| 1722 | target_byte_order_auto = 0; |
| 1723 | if (GDB_MULTI_ARCH) |
| 1724 | { |
| 1725 | struct gdbarch_info info; |
| 1726 | memset (&info, 0, sizeof info); |
| 1727 | info.byte_order = LITTLE_ENDIAN; |
| 1728 | gdbarch_update (info); |
| 1729 | } |
| 1730 | } |
| 1731 | else |
| 1732 | { |
| 1733 | printf_unfiltered ("Byte order is not selectable."); |
| 1734 | show_endian (args, from_tty); |
| 1735 | } |
| 1736 | } |
| 1737 | |
| 1738 | /* Called by \`\`set endian auto''. */ |
| 1739 | static void |
| 1740 | set_endian_auto (char *args, int from_tty) |
| 1741 | { |
| 1742 | if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| 1743 | { |
| 1744 | target_byte_order_auto = 1; |
| 1745 | } |
| 1746 | else |
| 1747 | { |
| 1748 | printf_unfiltered ("Byte order is not selectable."); |
| 1749 | show_endian (args, from_tty); |
| 1750 | } |
| 1751 | } |
| 1752 | |
| 1753 | /* Set the endianness from a BFD. */ |
| 1754 | static void |
| 1755 | set_endian_from_file (bfd *abfd) |
| 1756 | { |
| 1757 | if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| 1758 | { |
| 1759 | int want; |
| 1760 | |
| 1761 | if (bfd_big_endian (abfd)) |
| 1762 | want = BIG_ENDIAN; |
| 1763 | else |
| 1764 | want = LITTLE_ENDIAN; |
| 1765 | if (TARGET_BYTE_ORDER_AUTO) |
| 1766 | target_byte_order = want; |
| 1767 | else if (TARGET_BYTE_ORDER != want) |
| 1768 | warning ("%s endian file does not match %s endian target.", |
| 1769 | want == BIG_ENDIAN ? "big" : "little", |
| 1770 | TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little"); |
| 1771 | } |
| 1772 | else |
| 1773 | { |
| 1774 | if (bfd_big_endian (abfd) |
| 1775 | ? TARGET_BYTE_ORDER != BIG_ENDIAN |
| 1776 | : TARGET_BYTE_ORDER == BIG_ENDIAN) |
| 1777 | warning ("%s endian file does not match %s endian target.", |
| 1778 | bfd_big_endian (abfd) ? "big" : "little", |
| 1779 | TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little"); |
| 1780 | } |
| 1781 | } |
| 1782 | |
| 1783 | |
| 1784 | |
| 1785 | /* Functions to manipulate the architecture of the target */ |
| 1786 | |
| 1787 | enum set_arch { set_arch_auto, set_arch_manual }; |
| 1788 | |
| 1789 | int target_architecture_auto = 1; |
| 1790 | extern const struct bfd_arch_info bfd_default_arch_struct; |
| 1791 | const struct bfd_arch_info *target_architecture = &bfd_default_arch_struct; |
| 1792 | int (*target_architecture_hook) (const struct bfd_arch_info *ap); |
| 1793 | |
| 1794 | static void show_endian (char *, int); |
| 1795 | static void set_endian (char *, int); |
| 1796 | static void set_endian_big (char *, int); |
| 1797 | static void set_endian_little (char *, int); |
| 1798 | static void set_endian_auto (char *, int); |
| 1799 | static void set_endian_from_file (bfd *); |
| 1800 | static int arch_ok (const struct bfd_arch_info *arch); |
| 1801 | static void set_arch (const struct bfd_arch_info *arch, enum set_arch type); |
| 1802 | static void show_architecture (char *, int); |
| 1803 | static void set_architecture (char *, int); |
| 1804 | static void info_architecture (char *, int); |
| 1805 | static void set_architecture_from_file (bfd *); |
| 1806 | |
| 1807 | /* Do the real work of changing the current architecture */ |
| 1808 | |
| 1809 | static int |
| 1810 | arch_ok (const struct bfd_arch_info *arch) |
| 1811 | { |
| 1812 | /* Should be performing the more basic check that the binary is |
| 1813 | compatible with GDB. */ |
| 1814 | /* Check with the target that the architecture is valid. */ |
| 1815 | return (target_architecture_hook == NULL |
| 1816 | || target_architecture_hook (arch)); |
| 1817 | } |
| 1818 | |
| 1819 | static void |
| 1820 | set_arch (const struct bfd_arch_info *arch, |
| 1821 | enum set_arch type) |
| 1822 | { |
| 1823 | switch (type) |
| 1824 | { |
| 1825 | case set_arch_auto: |
| 1826 | if (!arch_ok (arch)) |
| 1827 | warning ("Target may not support %s architecture", |
| 1828 | arch->printable_name); |
| 1829 | target_architecture = arch; |
| 1830 | break; |
| 1831 | case set_arch_manual: |
| 1832 | if (!arch_ok (arch)) |
| 1833 | { |
| 1834 | printf_unfiltered ("Target does not support \`%s' architecture.\n", |
| 1835 | arch->printable_name); |
| 1836 | } |
| 1837 | else |
| 1838 | { |
| 1839 | target_architecture_auto = 0; |
| 1840 | target_architecture = arch; |
| 1841 | } |
| 1842 | break; |
| 1843 | } |
| 1844 | if (gdbarch_debug) |
| 1845 | gdbarch_dump (); |
| 1846 | } |
| 1847 | |
| 1848 | /* Called if the user enters \`\`show architecture'' without an argument. */ |
| 1849 | static void |
| 1850 | show_architecture (char *args, int from_tty) |
| 1851 | { |
| 1852 | const char *arch; |
| 1853 | arch = TARGET_ARCHITECTURE->printable_name; |
| 1854 | if (target_architecture_auto) |
| 1855 | printf_filtered ("The target architecture is set automatically (currently %s)\n", arch); |
| 1856 | else |
| 1857 | printf_filtered ("The target architecture is assumed to be %s\n", arch); |
| 1858 | } |
| 1859 | |
| 1860 | /* Called if the user enters \`\`set architecture'' with or without an |
| 1861 | argument. */ |
| 1862 | static void |
| 1863 | set_architecture (char *args, int from_tty) |
| 1864 | { |
| 1865 | if (args == NULL) |
| 1866 | { |
| 1867 | printf_unfiltered ("\"set architecture\" must be followed by \"auto\" or an architecture name.\n"); |
| 1868 | } |
| 1869 | else if (strcmp (args, "auto") == 0) |
| 1870 | { |
| 1871 | target_architecture_auto = 1; |
| 1872 | } |
| 1873 | else if (GDB_MULTI_ARCH) |
| 1874 | { |
| 1875 | const struct bfd_arch_info *arch = bfd_scan_arch (args); |
| 1876 | if (arch == NULL) |
| 1877 | printf_unfiltered ("Architecture \`%s' not reconized.\n", args); |
| 1878 | else |
| 1879 | { |
| 1880 | struct gdbarch_info info; |
| 1881 | memset (&info, 0, sizeof info); |
| 1882 | info.bfd_arch_info = arch; |
| 1883 | if (gdbarch_update (info)) |
| 1884 | target_architecture_auto = 0; |
| 1885 | else |
| 1886 | printf_unfiltered ("Architecture \`%s' not reconized.\n", args); |
| 1887 | } |
| 1888 | } |
| 1889 | else |
| 1890 | { |
| 1891 | const struct bfd_arch_info *arch = bfd_scan_arch (args); |
| 1892 | if (arch != NULL) |
| 1893 | set_arch (arch, set_arch_manual); |
| 1894 | else |
| 1895 | printf_unfiltered ("Architecture \`%s' not reconized.\n", args); |
| 1896 | } |
| 1897 | } |
| 1898 | |
| 1899 | /* Called if the user enters \`\`info architecture'' without an argument. */ |
| 1900 | static void |
| 1901 | info_architecture (char *args, int from_tty) |
| 1902 | { |
| 1903 | enum bfd_architecture a; |
| 1904 | if (GDB_MULTI_ARCH) |
| 1905 | { |
| 1906 | if (gdbarch_init_registrary != NULL) |
| 1907 | { |
| 1908 | struct gdbarch_init_registration *rego; |
| 1909 | printf_filtered ("Available architectures are:\n"); |
| 1910 | for (rego = gdbarch_init_registrary; |
| 1911 | rego != NULL; |
| 1912 | rego = rego->next) |
| 1913 | { |
| 1914 | const struct bfd_arch_info *ap; |
| 1915 | ap = bfd_lookup_arch (rego->bfd_architecture, 0); |
| 1916 | if (ap != NULL) |
| 1917 | { |
| 1918 | do |
| 1919 | { |
| 1920 | printf_filtered (" %s", ap->printable_name); |
| 1921 | ap = ap->next; |
| 1922 | } |
| 1923 | while (ap != NULL); |
| 1924 | printf_filtered ("\n"); |
| 1925 | } |
| 1926 | } |
| 1927 | } |
| 1928 | else |
| 1929 | { |
| 1930 | printf_filtered ("There are no available architectures.\n"); |
| 1931 | } |
| 1932 | return; |
| 1933 | } |
| 1934 | printf_filtered ("Available architectures are:\n"); |
| 1935 | for (a = bfd_arch_obscure + 1; a < bfd_arch_last; a++) |
| 1936 | { |
| 1937 | const struct bfd_arch_info *ap = bfd_lookup_arch (a, 0); |
| 1938 | if (ap != NULL) |
| 1939 | { |
| 1940 | do |
| 1941 | { |
| 1942 | printf_filtered (" %s", ap->printable_name); |
| 1943 | ap = ap->next; |
| 1944 | } |
| 1945 | while (ap != NULL); |
| 1946 | printf_filtered ("\n"); |
| 1947 | } |
| 1948 | } |
| 1949 | } |
| 1950 | |
| 1951 | /* Set the architecture from arch/machine */ |
| 1952 | void |
| 1953 | set_architecture_from_arch_mach (arch, mach) |
| 1954 | enum bfd_architecture arch; |
| 1955 | unsigned long mach; |
| 1956 | { |
| 1957 | const struct bfd_arch_info *wanted = bfd_lookup_arch (arch, mach); |
| 1958 | if (wanted != NULL) |
| 1959 | set_arch (wanted, set_arch_manual); |
| 1960 | else |
| 1961 | internal_error ("gdbarch: hardwired architecture/machine not reconized"); |
| 1962 | } |
| 1963 | |
| 1964 | /* Set the architecture from a BFD */ |
| 1965 | static void |
| 1966 | set_architecture_from_file (bfd *abfd) |
| 1967 | { |
| 1968 | const struct bfd_arch_info *wanted = bfd_get_arch_info (abfd); |
| 1969 | if (target_architecture_auto) |
| 1970 | { |
| 1971 | set_arch (wanted, set_arch_auto); |
| 1972 | } |
| 1973 | else if (wanted != target_architecture) |
| 1974 | { |
| 1975 | warning ("%s architecture file may be incompatible with %s target.", |
| 1976 | wanted->printable_name, |
| 1977 | target_architecture->printable_name); |
| 1978 | } |
| 1979 | } |
| 1980 | |
| 1981 | |
| 1982 | /* Misc helper functions for targets. */ |
| 1983 | |
| 1984 | int |
| 1985 | frame_num_args_unknown (fi) |
| 1986 | struct frame_info *fi; |
| 1987 | { |
| 1988 | return -1; |
| 1989 | } |
| 1990 | |
| 1991 | |
| 1992 | int |
| 1993 | generic_register_convertible_not (num) |
| 1994 | int num; |
| 1995 | { |
| 1996 | return 0; |
| 1997 | } |
| 1998 | |
| 1999 | |
| 2000 | /* Disassembler */ |
| 2001 | |
| 2002 | /* Pointer to the target-dependent disassembly function. */ |
| 2003 | int (*tm_print_insn) (bfd_vma, disassemble_info *); |
| 2004 | disassemble_info tm_print_insn_info; |
| 2005 | |
| 2006 | |
| 2007 | |
| 2008 | /* Set the dynamic target-system-dependant parameters (architecture, |
| 2009 | byte-order) using information found in the BFD */ |
| 2010 | |
| 2011 | void |
| 2012 | set_gdbarch_from_file (abfd) |
| 2013 | bfd *abfd; |
| 2014 | { |
| 2015 | if (GDB_MULTI_ARCH) |
| 2016 | { |
| 2017 | struct gdbarch_info info; |
| 2018 | memset (&info, 0, sizeof info); |
| 2019 | info.abfd = abfd; |
| 2020 | gdbarch_update (info); |
| 2021 | return; |
| 2022 | } |
| 2023 | set_architecture_from_file (abfd); |
| 2024 | set_endian_from_file (abfd); |
| 2025 | } |
| 2026 | |
| 2027 | |
| 2028 | /* Initialize the current architecture. */ |
| 2029 | void |
| 2030 | initialize_current_architecture () |
| 2031 | { |
| 2032 | if (GDB_MULTI_ARCH) |
| 2033 | { |
| 2034 | struct gdbarch_init_registration *rego; |
| 2035 | const struct bfd_arch_info *chosen = NULL; |
| 2036 | for (rego = gdbarch_init_registrary; rego != NULL; rego = rego->next) |
| 2037 | { |
| 2038 | const struct bfd_arch_info *ap |
| 2039 | = bfd_lookup_arch (rego->bfd_architecture, 0); |
| 2040 | |
| 2041 | /* Choose the first architecture alphabetically. */ |
| 2042 | if (chosen == NULL |
| 2043 | || strcmp (ap->printable_name, chosen->printable_name) < 0) |
| 2044 | chosen = ap; |
| 2045 | } |
| 2046 | |
| 2047 | if (chosen != NULL) |
| 2048 | { |
| 2049 | struct gdbarch_info info; |
| 2050 | memset (&info, 0, sizeof info); |
| 2051 | info.bfd_arch_info = chosen; |
| 2052 | gdbarch_update (info); |
| 2053 | } |
| 2054 | } |
| 2055 | } |
| 2056 | |
| 2057 | extern void _initialize_gdbarch (void); |
| 2058 | void |
| 2059 | _initialize_gdbarch () |
| 2060 | { |
| 2061 | struct cmd_list_element *c; |
| 2062 | |
| 2063 | add_prefix_cmd ("endian", class_support, set_endian, |
| 2064 | "Set endianness of target.", |
| 2065 | &endianlist, "set endian ", 0, &setlist); |
| 2066 | add_cmd ("big", class_support, set_endian_big, |
| 2067 | "Set target as being big endian.", &endianlist); |
| 2068 | add_cmd ("little", class_support, set_endian_little, |
| 2069 | "Set target as being little endian.", &endianlist); |
| 2070 | add_cmd ("auto", class_support, set_endian_auto, |
| 2071 | "Select target endianness automatically.", &endianlist); |
| 2072 | add_cmd ("endian", class_support, show_endian, |
| 2073 | "Show endianness of target.", &showlist); |
| 2074 | |
| 2075 | add_cmd ("architecture", class_support, set_architecture, |
| 2076 | "Set architecture of target.", &setlist); |
| 2077 | add_alias_cmd ("processor", "architecture", class_support, 1, &setlist); |
| 2078 | add_cmd ("architecture", class_support, show_architecture, |
| 2079 | "Show architecture of target.", &showlist); |
| 2080 | add_cmd ("architecture", class_support, info_architecture, |
| 2081 | "List supported target architectures", &infolist); |
| 2082 | |
| 2083 | INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered); |
| 2084 | tm_print_insn_info.flavour = bfd_target_unknown_flavour; |
| 2085 | tm_print_insn_info.read_memory_func = dis_asm_read_memory; |
| 2086 | tm_print_insn_info.memory_error_func = dis_asm_memory_error; |
| 2087 | tm_print_insn_info.print_address_func = dis_asm_print_address; |
| 2088 | |
| 2089 | add_show_from_set (add_set_cmd ("arch", |
| 2090 | class_maintenance, |
| 2091 | var_zinteger, |
| 2092 | (char *)&gdbarch_debug, |
| 2093 | "Set architecture debugging.\n\\ |
| 2094 | When non-zero, architecture debugging is enabled.", &setdebuglist), |
| 2095 | &showdebuglist); |
| 2096 | c = add_set_cmd ("archdebug", |
| 2097 | class_maintenance, |
| 2098 | var_zinteger, |
| 2099 | (char *)&gdbarch_debug, |
| 2100 | "Set architecture debugging.\n\\ |
| 2101 | When non-zero, architecture debugging is enabled.", &setlist); |
| 2102 | |
| 2103 | deprecate_cmd (c, "set debug arch"); |
| 2104 | deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch"); |
| 2105 | } |
| 2106 | EOF |
| 2107 | |
| 2108 | # close things off |
| 2109 | exec 1>&2 |
| 2110 | #../move-if-change new-gdbarch.c gdbarch.c |
| 2111 | compare_new gdbarch.c |