| 1 | #!/bin/sh -u |
| 2 | |
| 3 | # Architecture commands for GDB, the GNU debugger. |
| 4 | # |
| 5 | # Copyright (C) 1998-2015 Free Software Foundation, Inc. |
| 6 | # |
| 7 | # This file is part of GDB. |
| 8 | # |
| 9 | # This program is free software; you can redistribute it and/or modify |
| 10 | # it under the terms of the GNU General Public License as published by |
| 11 | # the Free Software Foundation; either version 3 of the License, or |
| 12 | # (at your option) any later version. |
| 13 | # |
| 14 | # This program is distributed in the hope that it will be useful, |
| 15 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | # GNU General Public License for more details. |
| 18 | # |
| 19 | # You should have received a copy of the GNU General Public License |
| 20 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 21 | |
| 22 | # Make certain that the script is not running in an internationalized |
| 23 | # environment. |
| 24 | LANG=C ; export LANG |
| 25 | LC_ALL=C ; export LC_ALL |
| 26 | |
| 27 | |
| 28 | compare_new () |
| 29 | { |
| 30 | file=$1 |
| 31 | if test ! -r ${file} |
| 32 | then |
| 33 | echo "${file} missing? cp new-${file} ${file}" 1>&2 |
| 34 | elif diff -u ${file} new-${file} |
| 35 | then |
| 36 | echo "${file} unchanged" 1>&2 |
| 37 | else |
| 38 | echo "${file} has changed? cp new-${file} ${file}" 1>&2 |
| 39 | fi |
| 40 | } |
| 41 | |
| 42 | |
| 43 | # Format of the input table |
| 44 | read="class returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol" |
| 45 | |
| 46 | do_read () |
| 47 | { |
| 48 | comment="" |
| 49 | class="" |
| 50 | # On some SH's, 'read' trims leading and trailing whitespace by |
| 51 | # default (e.g., bash), while on others (e.g., dash), it doesn't. |
| 52 | # Set IFS to empty to disable the trimming everywhere. |
| 53 | while IFS='' read line |
| 54 | do |
| 55 | if test "${line}" = "" |
| 56 | then |
| 57 | continue |
| 58 | elif test "${line}" = "#" -a "${comment}" = "" |
| 59 | then |
| 60 | continue |
| 61 | elif expr "${line}" : "#" > /dev/null |
| 62 | then |
| 63 | comment="${comment} |
| 64 | ${line}" |
| 65 | else |
| 66 | |
| 67 | # The semantics of IFS varies between different SH's. Some |
| 68 | # treat ``::' as three fields while some treat it as just too. |
| 69 | # Work around this by eliminating ``::'' .... |
| 70 | line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`" |
| 71 | |
| 72 | OFS="${IFS}" ; IFS="[:]" |
| 73 | eval read ${read} <<EOF |
| 74 | ${line} |
| 75 | EOF |
| 76 | IFS="${OFS}" |
| 77 | |
| 78 | if test -n "${garbage_at_eol}" |
| 79 | then |
| 80 | echo "Garbage at end-of-line in ${line}" 1>&2 |
| 81 | kill $$ |
| 82 | exit 1 |
| 83 | fi |
| 84 | |
| 85 | # .... and then going back through each field and strip out those |
| 86 | # that ended up with just that space character. |
| 87 | for r in ${read} |
| 88 | do |
| 89 | if eval test \"\${${r}}\" = \"\ \" |
| 90 | then |
| 91 | eval ${r}="" |
| 92 | fi |
| 93 | done |
| 94 | |
| 95 | case "${class}" in |
| 96 | m ) staticdefault="${predefault}" ;; |
| 97 | M ) staticdefault="0" ;; |
| 98 | * ) test "${staticdefault}" || staticdefault=0 ;; |
| 99 | esac |
| 100 | |
| 101 | case "${class}" in |
| 102 | F | V | M ) |
| 103 | case "${invalid_p}" in |
| 104 | "" ) |
| 105 | if test -n "${predefault}" |
| 106 | then |
| 107 | #invalid_p="gdbarch->${function} == ${predefault}" |
| 108 | predicate="gdbarch->${function} != ${predefault}" |
| 109 | elif class_is_variable_p |
| 110 | then |
| 111 | predicate="gdbarch->${function} != 0" |
| 112 | elif class_is_function_p |
| 113 | then |
| 114 | predicate="gdbarch->${function} != NULL" |
| 115 | fi |
| 116 | ;; |
| 117 | * ) |
| 118 | echo "Predicate function ${function} with invalid_p." 1>&2 |
| 119 | kill $$ |
| 120 | exit 1 |
| 121 | ;; |
| 122 | esac |
| 123 | esac |
| 124 | |
| 125 | # PREDEFAULT is a valid fallback definition of MEMBER when |
| 126 | # multi-arch is not enabled. This ensures that the |
| 127 | # default value, when multi-arch is the same as the |
| 128 | # default value when not multi-arch. POSTDEFAULT is |
| 129 | # always a valid definition of MEMBER as this again |
| 130 | # ensures consistency. |
| 131 | |
| 132 | if [ -n "${postdefault}" ] |
| 133 | then |
| 134 | fallbackdefault="${postdefault}" |
| 135 | elif [ -n "${predefault}" ] |
| 136 | then |
| 137 | fallbackdefault="${predefault}" |
| 138 | else |
| 139 | fallbackdefault="0" |
| 140 | fi |
| 141 | |
| 142 | #NOT YET: See gdbarch.log for basic verification of |
| 143 | # database |
| 144 | |
| 145 | break |
| 146 | fi |
| 147 | done |
| 148 | if [ -n "${class}" ] |
| 149 | then |
| 150 | true |
| 151 | else |
| 152 | false |
| 153 | fi |
| 154 | } |
| 155 | |
| 156 | |
| 157 | fallback_default_p () |
| 158 | { |
| 159 | [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \ |
| 160 | || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ] |
| 161 | } |
| 162 | |
| 163 | class_is_variable_p () |
| 164 | { |
| 165 | case "${class}" in |
| 166 | *v* | *V* ) true ;; |
| 167 | * ) false ;; |
| 168 | esac |
| 169 | } |
| 170 | |
| 171 | class_is_function_p () |
| 172 | { |
| 173 | case "${class}" in |
| 174 | *f* | *F* | *m* | *M* ) true ;; |
| 175 | * ) false ;; |
| 176 | esac |
| 177 | } |
| 178 | |
| 179 | class_is_multiarch_p () |
| 180 | { |
| 181 | case "${class}" in |
| 182 | *m* | *M* ) true ;; |
| 183 | * ) false ;; |
| 184 | esac |
| 185 | } |
| 186 | |
| 187 | class_is_predicate_p () |
| 188 | { |
| 189 | case "${class}" in |
| 190 | *F* | *V* | *M* ) true ;; |
| 191 | * ) false ;; |
| 192 | esac |
| 193 | } |
| 194 | |
| 195 | class_is_info_p () |
| 196 | { |
| 197 | case "${class}" in |
| 198 | *i* ) true ;; |
| 199 | * ) false ;; |
| 200 | esac |
| 201 | } |
| 202 | |
| 203 | |
| 204 | # dump out/verify the doco |
| 205 | for field in ${read} |
| 206 | do |
| 207 | case ${field} in |
| 208 | |
| 209 | class ) : ;; |
| 210 | |
| 211 | # # -> line disable |
| 212 | # f -> function |
| 213 | # hiding a function |
| 214 | # F -> function + predicate |
| 215 | # hiding a function + predicate to test function validity |
| 216 | # v -> variable |
| 217 | # hiding a variable |
| 218 | # V -> variable + predicate |
| 219 | # hiding a variable + predicate to test variables validity |
| 220 | # i -> set from info |
| 221 | # hiding something from the ``struct info'' object |
| 222 | # m -> multi-arch function |
| 223 | # hiding a multi-arch function (parameterised with the architecture) |
| 224 | # M -> multi-arch function + predicate |
| 225 | # hiding a multi-arch function + predicate to test function validity |
| 226 | |
| 227 | returntype ) : ;; |
| 228 | |
| 229 | # For functions, the return type; for variables, the data type |
| 230 | |
| 231 | function ) : ;; |
| 232 | |
| 233 | # For functions, the member function name; for variables, the |
| 234 | # variable name. Member function names are always prefixed with |
| 235 | # ``gdbarch_'' for name-space purity. |
| 236 | |
| 237 | formal ) : ;; |
| 238 | |
| 239 | # The formal argument list. It is assumed that the formal |
| 240 | # argument list includes the actual name of each list element. |
| 241 | # A function with no arguments shall have ``void'' as the |
| 242 | # formal argument list. |
| 243 | |
| 244 | actual ) : ;; |
| 245 | |
| 246 | # The list of actual arguments. The arguments specified shall |
| 247 | # match the FORMAL list given above. Functions with out |
| 248 | # arguments leave this blank. |
| 249 | |
| 250 | staticdefault ) : ;; |
| 251 | |
| 252 | # To help with the GDB startup a static gdbarch object is |
| 253 | # created. STATICDEFAULT is the value to insert into that |
| 254 | # static gdbarch object. Since this a static object only |
| 255 | # simple expressions can be used. |
| 256 | |
| 257 | # If STATICDEFAULT is empty, zero is used. |
| 258 | |
| 259 | predefault ) : ;; |
| 260 | |
| 261 | # An initial value to assign to MEMBER of the freshly |
| 262 | # malloc()ed gdbarch object. After initialization, the |
| 263 | # freshly malloc()ed object is passed to the target |
| 264 | # architecture code for further updates. |
| 265 | |
| 266 | # If PREDEFAULT is empty, zero is used. |
| 267 | |
| 268 | # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero |
| 269 | # INVALID_P are specified, PREDEFAULT will be used as the |
| 270 | # default for the non- multi-arch target. |
| 271 | |
| 272 | # A zero PREDEFAULT function will force the fallback to call |
| 273 | # internal_error(). |
| 274 | |
| 275 | # Variable declarations can refer to ``gdbarch'' which will |
| 276 | # contain the current architecture. Care should be taken. |
| 277 | |
| 278 | postdefault ) : ;; |
| 279 | |
| 280 | # A value to assign to MEMBER of the new gdbarch object should |
| 281 | # the target architecture code fail to change the PREDEFAULT |
| 282 | # value. |
| 283 | |
| 284 | # If POSTDEFAULT is empty, no post update is performed. |
| 285 | |
| 286 | # If both INVALID_P and POSTDEFAULT are non-empty then |
| 287 | # INVALID_P will be used to determine if MEMBER should be |
| 288 | # changed to POSTDEFAULT. |
| 289 | |
| 290 | # If a non-empty POSTDEFAULT and a zero INVALID_P are |
| 291 | # specified, POSTDEFAULT will be used as the default for the |
| 292 | # non- multi-arch target (regardless of the value of |
| 293 | # PREDEFAULT). |
| 294 | |
| 295 | # You cannot specify both a zero INVALID_P and a POSTDEFAULT. |
| 296 | |
| 297 | # Variable declarations can refer to ``gdbarch'' which |
| 298 | # will contain the current architecture. Care should be |
| 299 | # taken. |
| 300 | |
| 301 | invalid_p ) : ;; |
| 302 | |
| 303 | # A predicate equation that validates MEMBER. Non-zero is |
| 304 | # returned if the code creating the new architecture failed to |
| 305 | # initialize MEMBER or the initialized the member is invalid. |
| 306 | # If POSTDEFAULT is non-empty then MEMBER will be updated to |
| 307 | # that value. If POSTDEFAULT is empty then internal_error() |
| 308 | # is called. |
| 309 | |
| 310 | # If INVALID_P is empty, a check that MEMBER is no longer |
| 311 | # equal to PREDEFAULT is used. |
| 312 | |
| 313 | # The expression ``0'' disables the INVALID_P check making |
| 314 | # PREDEFAULT a legitimate value. |
| 315 | |
| 316 | # See also PREDEFAULT and POSTDEFAULT. |
| 317 | |
| 318 | print ) : ;; |
| 319 | |
| 320 | # An optional expression that convers MEMBER to a value |
| 321 | # suitable for formatting using %s. |
| 322 | |
| 323 | # If PRINT is empty, core_addr_to_string_nz (for CORE_ADDR) |
| 324 | # or plongest (anything else) is used. |
| 325 | |
| 326 | garbage_at_eol ) : ;; |
| 327 | |
| 328 | # Catches stray fields. |
| 329 | |
| 330 | *) |
| 331 | echo "Bad field ${field}" |
| 332 | exit 1;; |
| 333 | esac |
| 334 | done |
| 335 | |
| 336 | |
| 337 | function_list () |
| 338 | { |
| 339 | # See below (DOCO) for description of each field |
| 340 | cat <<EOF |
| 341 | i:const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (gdbarch)->printable_name |
| 342 | # |
| 343 | i:enum bfd_endian:byte_order:::BFD_ENDIAN_BIG |
| 344 | i:enum bfd_endian:byte_order_for_code:::BFD_ENDIAN_BIG |
| 345 | # |
| 346 | i:enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN |
| 347 | # |
| 348 | i:const struct target_desc *:target_desc:::::::host_address_to_string (gdbarch->target_desc) |
| 349 | |
| 350 | # The bit byte-order has to do just with numbering of bits in debugging symbols |
| 351 | # and such. Conceptually, it's quite separate from byte/word byte order. |
| 352 | v:int:bits_big_endian:::1:(gdbarch->byte_order == BFD_ENDIAN_BIG)::0 |
| 353 | |
| 354 | # Number of bits in a char or unsigned char for the target machine. |
| 355 | # Just like CHAR_BIT in <limits.h> but describes the target machine. |
| 356 | # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0: |
| 357 | # |
| 358 | # Number of bits in a short or unsigned short for the target machine. |
| 359 | v:int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0 |
| 360 | # Number of bits in an int or unsigned int for the target machine. |
| 361 | v:int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0 |
| 362 | # Number of bits in a long or unsigned long for the target machine. |
| 363 | v:int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0 |
| 364 | # Number of bits in a long long or unsigned long long for the target |
| 365 | # machine. |
| 366 | v:int:long_long_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0 |
| 367 | # Alignment of a long long or unsigned long long for the target |
| 368 | # machine. |
| 369 | v:int:long_long_align_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0 |
| 370 | |
| 371 | # The ABI default bit-size and format for "half", "float", "double", and |
| 372 | # "long double". These bit/format pairs should eventually be combined |
| 373 | # into a single object. For the moment, just initialize them as a pair. |
| 374 | # Each format describes both the big and little endian layouts (if |
| 375 | # useful). |
| 376 | |
| 377 | v:int:half_bit:::16:2*TARGET_CHAR_BIT::0 |
| 378 | v:const struct floatformat **:half_format:::::floatformats_ieee_half::pformat (gdbarch->half_format) |
| 379 | v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0 |
| 380 | v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format) |
| 381 | v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0 |
| 382 | v:const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (gdbarch->double_format) |
| 383 | v:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0 |
| 384 | v:const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (gdbarch->long_double_format) |
| 385 | |
| 386 | # For most targets, a pointer on the target and its representation as an |
| 387 | # address in GDB have the same size and "look the same". For such a |
| 388 | # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit |
| 389 | # / addr_bit will be set from it. |
| 390 | # |
| 391 | # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably |
| 392 | # also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and |
| 393 | # gdbarch_address_to_pointer as well. |
| 394 | # |
| 395 | # ptr_bit is the size of a pointer on the target |
| 396 | v:int:ptr_bit:::8 * sizeof (void*):gdbarch->int_bit::0 |
| 397 | # addr_bit is the size of a target address as represented in gdb |
| 398 | v:int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (gdbarch): |
| 399 | # |
| 400 | # dwarf2_addr_size is the target address size as used in the Dwarf debug |
| 401 | # info. For .debug_frame FDEs, this is supposed to be the target address |
| 402 | # size from the associated CU header, and which is equivalent to the |
| 403 | # DWARF2_ADDR_SIZE as defined by the target specific GCC back-end. |
| 404 | # Unfortunately there is no good way to determine this value. Therefore |
| 405 | # dwarf2_addr_size simply defaults to the target pointer size. |
| 406 | # |
| 407 | # dwarf2_addr_size is not used for .eh_frame FDEs, which are generally |
| 408 | # defined using the target's pointer size so far. |
| 409 | # |
| 410 | # Note that dwarf2_addr_size only needs to be redefined by a target if the |
| 411 | # GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size, |
| 412 | # and if Dwarf versions < 4 need to be supported. |
| 413 | v:int:dwarf2_addr_size:::sizeof (void*):0:gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT: |
| 414 | # |
| 415 | # One if \`char' acts like \`signed char', zero if \`unsigned char'. |
| 416 | v:int:char_signed:::1:-1:1 |
| 417 | # |
| 418 | F:CORE_ADDR:read_pc:struct regcache *regcache:regcache |
| 419 | F:void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val |
| 420 | # Function for getting target's idea of a frame pointer. FIXME: GDB's |
| 421 | # whole scheme for dealing with "frames" and "frame pointers" needs a |
| 422 | # serious shakedown. |
| 423 | m:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset:0:legacy_virtual_frame_pointer::0 |
| 424 | # |
| 425 | M:enum register_status:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf |
| 426 | # Read a register into a new struct value. If the register is wholly |
| 427 | # or partly unavailable, this should call mark_value_bytes_unavailable |
| 428 | # as appropriate. If this is defined, then pseudo_register_read will |
| 429 | # never be called. |
| 430 | M:struct value *:pseudo_register_read_value:struct regcache *regcache, int cookednum:regcache, cookednum |
| 431 | M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf |
| 432 | # |
| 433 | v:int:num_regs:::0:-1 |
| 434 | # This macro gives the number of pseudo-registers that live in the |
| 435 | # register namespace but do not get fetched or stored on the target. |
| 436 | # These pseudo-registers may be aliases for other registers, |
| 437 | # combinations of other registers, or they may be computed by GDB. |
| 438 | v:int:num_pseudo_regs:::0:0::0 |
| 439 | |
| 440 | # Assemble agent expression bytecode to collect pseudo-register REG. |
| 441 | # Return -1 if something goes wrong, 0 otherwise. |
| 442 | M:int:ax_pseudo_register_collect:struct agent_expr *ax, int reg:ax, reg |
| 443 | |
| 444 | # Assemble agent expression bytecode to push the value of pseudo-register |
| 445 | # REG on the interpreter stack. |
| 446 | # Return -1 if something goes wrong, 0 otherwise. |
| 447 | M:int:ax_pseudo_register_push_stack:struct agent_expr *ax, int reg:ax, reg |
| 448 | |
| 449 | # GDB's standard (or well known) register numbers. These can map onto |
| 450 | # a real register or a pseudo (computed) register or not be defined at |
| 451 | # all (-1). |
| 452 | # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. |
| 453 | v:int:sp_regnum:::-1:-1::0 |
| 454 | v:int:pc_regnum:::-1:-1::0 |
| 455 | v:int:ps_regnum:::-1:-1::0 |
| 456 | v:int:fp0_regnum:::0:-1::0 |
| 457 | # Convert stab register number (from \`r\' declaration) to a gdb REGNUM. |
| 458 | m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0 |
| 459 | # Provide a default mapping from a ecoff register number to a gdb REGNUM. |
| 460 | m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0 |
| 461 | # Convert from an sdb register number to an internal gdb register number. |
| 462 | m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0 |
| 463 | # Provide a default mapping from a DWARF2 register number to a gdb REGNUM. |
| 464 | m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0 |
| 465 | m:const char *:register_name:int regnr:regnr::0 |
| 466 | |
| 467 | # Return the type of a register specified by the architecture. Only |
| 468 | # the register cache should call this function directly; others should |
| 469 | # use "register_type". |
| 470 | M:struct type *:register_type:int reg_nr:reg_nr |
| 471 | |
| 472 | M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame |
| 473 | # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete |
| 474 | # deprecated_fp_regnum. |
| 475 | v:int:deprecated_fp_regnum:::-1:-1::0 |
| 476 | |
| 477 | M:CORE_ADDR:push_dummy_call:struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:function, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr |
| 478 | v:int:call_dummy_location::::AT_ENTRY_POINT::0 |
| 479 | M:CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache:sp, funaddr, args, nargs, value_type, real_pc, bp_addr, regcache |
| 480 | |
| 481 | m:void:print_registers_info:struct ui_file *file, struct frame_info *frame, int regnum, int all:file, frame, regnum, all::default_print_registers_info::0 |
| 482 | m:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args::default_print_float_info::0 |
| 483 | M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args |
| 484 | # MAP a GDB RAW register number onto a simulator register number. See |
| 485 | # also include/...-sim.h. |
| 486 | m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0 |
| 487 | m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0 |
| 488 | m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0 |
| 489 | |
| 490 | # Determine the address where a longjmp will land and save this address |
| 491 | # in PC. Return nonzero on success. |
| 492 | # |
| 493 | # FRAME corresponds to the longjmp frame. |
| 494 | F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc |
| 495 | |
| 496 | # |
| 497 | v:int:believe_pcc_promotion::::::: |
| 498 | # |
| 499 | m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0 |
| 500 | f:int:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep:frame, regnum, type, buf, optimizedp, unavailablep:0 |
| 501 | f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0 |
| 502 | # Construct a value representing the contents of register REGNUM in |
| 503 | # frame FRAME_ID, interpreted as type TYPE. The routine needs to |
| 504 | # allocate and return a struct value with all value attributes |
| 505 | # (but not the value contents) filled in. |
| 506 | m:struct value *:value_from_register:struct type *type, int regnum, struct frame_id frame_id:type, regnum, frame_id::default_value_from_register::0 |
| 507 | # |
| 508 | m:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0 |
| 509 | m:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0 |
| 510 | M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf |
| 511 | |
| 512 | # Return the return-value convention that will be used by FUNCTION |
| 513 | # to return a value of type VALTYPE. FUNCTION may be NULL in which |
| 514 | # case the return convention is computed based only on VALTYPE. |
| 515 | # |
| 516 | # If READBUF is not NULL, extract the return value and save it in this buffer. |
| 517 | # |
| 518 | # If WRITEBUF is not NULL, it contains a return value which will be |
| 519 | # stored into the appropriate register. This can be used when we want |
| 520 | # to force the value returned by a function (see the "return" command |
| 521 | # for instance). |
| 522 | M:enum return_value_convention:return_value:struct value *function, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:function, valtype, regcache, readbuf, writebuf |
| 523 | |
| 524 | # Return true if the return value of function is stored in the first hidden |
| 525 | # parameter. In theory, this feature should be language-dependent, specified |
| 526 | # by language and its ABI, such as C++. Unfortunately, compiler may |
| 527 | # implement it to a target-dependent feature. So that we need such hook here |
| 528 | # to be aware of this in GDB. |
| 529 | m:int:return_in_first_hidden_param_p:struct type *type:type::default_return_in_first_hidden_param_p::0 |
| 530 | |
| 531 | m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0 |
| 532 | M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip |
| 533 | # On some platforms, a single function may provide multiple entry points, |
| 534 | # e.g. one that is used for function-pointer calls and a different one |
| 535 | # that is used for direct function calls. |
| 536 | # In order to ensure that breakpoints set on the function will trigger |
| 537 | # no matter via which entry point the function is entered, a platform |
| 538 | # may provide the skip_entrypoint callback. It is called with IP set |
| 539 | # to the main entry point of a function (as determined by the symbol table), |
| 540 | # and should return the address of the innermost entry point, where the |
| 541 | # actual breakpoint needs to be set. Note that skip_entrypoint is used |
| 542 | # by GDB common code even when debugging optimized code, where skip_prologue |
| 543 | # is not used. |
| 544 | M:CORE_ADDR:skip_entrypoint:CORE_ADDR ip:ip |
| 545 | |
| 546 | f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0 |
| 547 | m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0: |
| 548 | # Return the adjusted address and kind to use for Z0/Z1 packets. |
| 549 | # KIND is usually the memory length of the breakpoint, but may have a |
| 550 | # different target-specific meaning. |
| 551 | m:void:remote_breakpoint_from_pc:CORE_ADDR *pcptr, int *kindptr:pcptr, kindptr:0:default_remote_breakpoint_from_pc::0 |
| 552 | M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr |
| 553 | m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0 |
| 554 | m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0 |
| 555 | v:CORE_ADDR:decr_pc_after_break:::0:::0 |
| 556 | |
| 557 | # A function can be addressed by either it's "pointer" (possibly a |
| 558 | # descriptor address) or "entry point" (first executable instruction). |
| 559 | # The method "convert_from_func_ptr_addr" converting the former to the |
| 560 | # latter. gdbarch_deprecated_function_start_offset is being used to implement |
| 561 | # a simplified subset of that functionality - the function's address |
| 562 | # corresponds to the "function pointer" and the function's start |
| 563 | # corresponds to the "function entry point" - and hence is redundant. |
| 564 | |
| 565 | v:CORE_ADDR:deprecated_function_start_offset:::0:::0 |
| 566 | |
| 567 | # Return the remote protocol register number associated with this |
| 568 | # register. Normally the identity mapping. |
| 569 | m:int:remote_register_number:int regno:regno::default_remote_register_number::0 |
| 570 | |
| 571 | # Fetch the target specific address used to represent a load module. |
| 572 | F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile |
| 573 | # |
| 574 | v:CORE_ADDR:frame_args_skip:::0:::0 |
| 575 | M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame |
| 576 | M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame |
| 577 | # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame |
| 578 | # frame-base. Enable frame-base before frame-unwind. |
| 579 | F:int:frame_num_args:struct frame_info *frame:frame |
| 580 | # |
| 581 | M:CORE_ADDR:frame_align:CORE_ADDR address:address |
| 582 | m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0 |
| 583 | v:int:frame_red_zone_size |
| 584 | # |
| 585 | m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0 |
| 586 | # On some machines there are bits in addresses which are not really |
| 587 | # part of the address, but are used by the kernel, the hardware, etc. |
| 588 | # for special purposes. gdbarch_addr_bits_remove takes out any such bits so |
| 589 | # we get a "real" address such as one would find in a symbol table. |
| 590 | # This is used only for addresses of instructions, and even then I'm |
| 591 | # not sure it's used in all contexts. It exists to deal with there |
| 592 | # being a few stray bits in the PC which would mislead us, not as some |
| 593 | # sort of generic thing to handle alignment or segmentation (it's |
| 594 | # possible it should be in TARGET_READ_PC instead). |
| 595 | m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0 |
| 596 | |
| 597 | # FIXME/cagney/2001-01-18: This should be split in two. A target method that |
| 598 | # indicates if the target needs software single step. An ISA method to |
| 599 | # implement it. |
| 600 | # |
| 601 | # FIXME/cagney/2001-01-18: This should be replaced with something that inserts |
| 602 | # breakpoints using the breakpoint system instead of blatting memory directly |
| 603 | # (as with rs6000). |
| 604 | # |
| 605 | # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the |
| 606 | # target can single step. If not, then implement single step using breakpoints. |
| 607 | # |
| 608 | # A return value of 1 means that the software_single_step breakpoints |
| 609 | # were inserted; 0 means they were not. |
| 610 | F:int:software_single_step:struct frame_info *frame:frame |
| 611 | |
| 612 | # Return non-zero if the processor is executing a delay slot and a |
| 613 | # further single-step is needed before the instruction finishes. |
| 614 | M:int:single_step_through_delay:struct frame_info *frame:frame |
| 615 | # FIXME: cagney/2003-08-28: Need to find a better way of selecting the |
| 616 | # disassembler. Perhaps objdump can handle it? |
| 617 | f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0: |
| 618 | f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0 |
| 619 | |
| 620 | |
| 621 | # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER |
| 622 | # evaluates non-zero, this is the address where the debugger will place |
| 623 | # a step-resume breakpoint to get us past the dynamic linker. |
| 624 | m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0 |
| 625 | # Some systems also have trampoline code for returning from shared libs. |
| 626 | m:int:in_solib_return_trampoline:CORE_ADDR pc, const char *name:pc, name::generic_in_solib_return_trampoline::0 |
| 627 | |
| 628 | # A target might have problems with watchpoints as soon as the stack |
| 629 | # frame of the current function has been destroyed. This mostly happens |
| 630 | # as the first action in a function's epilogue. stack_frame_destroyed_p() |
| 631 | # is defined to return a non-zero value if either the given addr is one |
| 632 | # instruction after the stack destroying instruction up to the trailing |
| 633 | # return instruction or if we can figure out that the stack frame has |
| 634 | # already been invalidated regardless of the value of addr. Targets |
| 635 | # which don't suffer from that problem could just let this functionality |
| 636 | # untouched. |
| 637 | m:int:stack_frame_destroyed_p:CORE_ADDR addr:addr:0:generic_stack_frame_destroyed_p::0 |
| 638 | # Process an ELF symbol in the minimal symbol table in a backend-specific |
| 639 | # way. Normally this hook is supposed to do nothing, however if required, |
| 640 | # then this hook can be used to apply tranformations to symbols that are |
| 641 | # considered special in some way. For example the MIPS backend uses it |
| 642 | # to interpret \`st_other' information to mark compressed code symbols so |
| 643 | # that they can be treated in the appropriate manner in the processing of |
| 644 | # the main symbol table and DWARF-2 records. |
| 645 | F:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym |
| 646 | f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0 |
| 647 | # Process a symbol in the main symbol table in a backend-specific way. |
| 648 | # Normally this hook is supposed to do nothing, however if required, |
| 649 | # then this hook can be used to apply tranformations to symbols that |
| 650 | # are considered special in some way. This is currently used by the |
| 651 | # MIPS backend to make sure compressed code symbols have the ISA bit |
| 652 | # set. This in turn is needed for symbol values seen in GDB to match |
| 653 | # the values used at the runtime by the program itself, for function |
| 654 | # and label references. |
| 655 | f:void:make_symbol_special:struct symbol *sym, struct objfile *objfile:sym, objfile::default_make_symbol_special::0 |
| 656 | # Adjust the address retrieved from a DWARF-2 record other than a line |
| 657 | # entry in a backend-specific way. Normally this hook is supposed to |
| 658 | # return the address passed unchanged, however if that is incorrect for |
| 659 | # any reason, then this hook can be used to fix the address up in the |
| 660 | # required manner. This is currently used by the MIPS backend to make |
| 661 | # sure addresses in FDE, range records, etc. referring to compressed |
| 662 | # code have the ISA bit set, matching line information and the symbol |
| 663 | # table. |
| 664 | f:CORE_ADDR:adjust_dwarf2_addr:CORE_ADDR pc:pc::default_adjust_dwarf2_addr::0 |
| 665 | # Adjust the address updated by a line entry in a backend-specific way. |
| 666 | # Normally this hook is supposed to return the address passed unchanged, |
| 667 | # however in the case of inconsistencies in these records, this hook can |
| 668 | # be used to fix them up in the required manner. This is currently used |
| 669 | # by the MIPS backend to make sure all line addresses in compressed code |
| 670 | # are presented with the ISA bit set, which is not always the case. This |
| 671 | # in turn ensures breakpoint addresses are correctly matched against the |
| 672 | # stop PC. |
| 673 | f:CORE_ADDR:adjust_dwarf2_line:CORE_ADDR addr, int rel:addr, rel::default_adjust_dwarf2_line::0 |
| 674 | v:int:cannot_step_breakpoint:::0:0::0 |
| 675 | v:int:have_nonsteppable_watchpoint:::0:0::0 |
| 676 | F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class |
| 677 | M:const char *:address_class_type_flags_to_name:int type_flags:type_flags |
| 678 | |
| 679 | # Return the appropriate type_flags for the supplied address class. |
| 680 | # This function should return 1 if the address class was recognized and |
| 681 | # type_flags was set, zero otherwise. |
| 682 | M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr |
| 683 | # Is a register in a group |
| 684 | m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0 |
| 685 | # Fetch the pointer to the ith function argument. |
| 686 | F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type |
| 687 | |
| 688 | # Iterate over all supported register notes in a core file. For each |
| 689 | # supported register note section, the iterator must call CB and pass |
| 690 | # CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit |
| 691 | # the supported register note sections based on the current register |
| 692 | # values. Otherwise it should enumerate all supported register note |
| 693 | # sections. |
| 694 | M:void:iterate_over_regset_sections:iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache:cb, cb_data, regcache |
| 695 | |
| 696 | # Create core file notes |
| 697 | M:char *:make_corefile_notes:bfd *obfd, int *note_size:obfd, note_size |
| 698 | |
| 699 | # The elfcore writer hook to use to write Linux prpsinfo notes to core |
| 700 | # files. Most Linux architectures use the same prpsinfo32 or |
| 701 | # prpsinfo64 layouts, and so won't need to provide this hook, as we |
| 702 | # call the Linux generic routines in bfd to write prpsinfo notes by |
| 703 | # default. |
| 704 | F:char *:elfcore_write_linux_prpsinfo:bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info:obfd, note_data, note_size, info |
| 705 | |
| 706 | # Find core file memory regions |
| 707 | M:int:find_memory_regions:find_memory_region_ftype func, void *data:func, data |
| 708 | |
| 709 | # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from |
| 710 | # core file into buffer READBUF with length LEN. Return the number of bytes read |
| 711 | # (zero indicates failure). |
| 712 | # failed, otherwise, return the red length of READBUF. |
| 713 | M:ULONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, ULONGEST len:readbuf, offset, len |
| 714 | |
| 715 | # Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared |
| 716 | # libraries list from core file into buffer READBUF with length LEN. |
| 717 | # Return the number of bytes read (zero indicates failure). |
| 718 | M:ULONGEST:core_xfer_shared_libraries_aix:gdb_byte *readbuf, ULONGEST offset, ULONGEST len:readbuf, offset, len |
| 719 | |
| 720 | # How the core target converts a PTID from a core file to a string. |
| 721 | M:char *:core_pid_to_str:ptid_t ptid:ptid |
| 722 | |
| 723 | # BFD target to use when generating a core file. |
| 724 | V:const char *:gcore_bfd_target:::0:0:::pstring (gdbarch->gcore_bfd_target) |
| 725 | |
| 726 | # If the elements of C++ vtables are in-place function descriptors rather |
| 727 | # than normal function pointers (which may point to code or a descriptor), |
| 728 | # set this to one. |
| 729 | v:int:vtable_function_descriptors:::0:0::0 |
| 730 | |
| 731 | # Set if the least significant bit of the delta is used instead of the least |
| 732 | # significant bit of the pfn for pointers to virtual member functions. |
| 733 | v:int:vbit_in_delta:::0:0::0 |
| 734 | |
| 735 | # Advance PC to next instruction in order to skip a permanent breakpoint. |
| 736 | f:void:skip_permanent_breakpoint:struct regcache *regcache:regcache:default_skip_permanent_breakpoint:default_skip_permanent_breakpoint::0 |
| 737 | |
| 738 | # The maximum length of an instruction on this architecture in bytes. |
| 739 | V:ULONGEST:max_insn_length:::0:0 |
| 740 | |
| 741 | # Copy the instruction at FROM to TO, and make any adjustments |
| 742 | # necessary to single-step it at that address. |
| 743 | # |
| 744 | # REGS holds the state the thread's registers will have before |
| 745 | # executing the copied instruction; the PC in REGS will refer to FROM, |
| 746 | # not the copy at TO. The caller should update it to point at TO later. |
| 747 | # |
| 748 | # Return a pointer to data of the architecture's choice to be passed |
| 749 | # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that |
| 750 | # the instruction's effects have been completely simulated, with the |
| 751 | # resulting state written back to REGS. |
| 752 | # |
| 753 | # For a general explanation of displaced stepping and how GDB uses it, |
| 754 | # see the comments in infrun.c. |
| 755 | # |
| 756 | # The TO area is only guaranteed to have space for |
| 757 | # gdbarch_max_insn_length (arch) bytes, so this function must not |
| 758 | # write more bytes than that to that area. |
| 759 | # |
| 760 | # If you do not provide this function, GDB assumes that the |
| 761 | # architecture does not support displaced stepping. |
| 762 | # |
| 763 | # If your architecture doesn't need to adjust instructions before |
| 764 | # single-stepping them, consider using simple_displaced_step_copy_insn |
| 765 | # here. |
| 766 | # |
| 767 | # If the instruction cannot execute out of line, return NULL. The |
| 768 | # core falls back to stepping past the instruction in-line instead in |
| 769 | # that case. |
| 770 | M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs |
| 771 | |
| 772 | # Return true if GDB should use hardware single-stepping to execute |
| 773 | # the displaced instruction identified by CLOSURE. If false, |
| 774 | # GDB will simply restart execution at the displaced instruction |
| 775 | # location, and it is up to the target to ensure GDB will receive |
| 776 | # control again (e.g. by placing a software breakpoint instruction |
| 777 | # into the displaced instruction buffer). |
| 778 | # |
| 779 | # The default implementation returns false on all targets that |
| 780 | # provide a gdbarch_software_single_step routine, and true otherwise. |
| 781 | m:int:displaced_step_hw_singlestep:struct displaced_step_closure *closure:closure::default_displaced_step_hw_singlestep::0 |
| 782 | |
| 783 | # Fix up the state resulting from successfully single-stepping a |
| 784 | # displaced instruction, to give the result we would have gotten from |
| 785 | # stepping the instruction in its original location. |
| 786 | # |
| 787 | # REGS is the register state resulting from single-stepping the |
| 788 | # displaced instruction. |
| 789 | # |
| 790 | # CLOSURE is the result from the matching call to |
| 791 | # gdbarch_displaced_step_copy_insn. |
| 792 | # |
| 793 | # If you provide gdbarch_displaced_step_copy_insn.but not this |
| 794 | # function, then GDB assumes that no fixup is needed after |
| 795 | # single-stepping the instruction. |
| 796 | # |
| 797 | # For a general explanation of displaced stepping and how GDB uses it, |
| 798 | # see the comments in infrun.c. |
| 799 | M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL |
| 800 | |
| 801 | # Free a closure returned by gdbarch_displaced_step_copy_insn. |
| 802 | # |
| 803 | # If you provide gdbarch_displaced_step_copy_insn, you must provide |
| 804 | # this function as well. |
| 805 | # |
| 806 | # If your architecture uses closures that don't need to be freed, then |
| 807 | # you can use simple_displaced_step_free_closure here. |
| 808 | # |
| 809 | # For a general explanation of displaced stepping and how GDB uses it, |
| 810 | # see the comments in infrun.c. |
| 811 | m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn) |
| 812 | |
| 813 | # Return the address of an appropriate place to put displaced |
| 814 | # instructions while we step over them. There need only be one such |
| 815 | # place, since we're only stepping one thread over a breakpoint at a |
| 816 | # time. |
| 817 | # |
| 818 | # For a general explanation of displaced stepping and how GDB uses it, |
| 819 | # see the comments in infrun.c. |
| 820 | m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn) |
| 821 | |
| 822 | # Relocate an instruction to execute at a different address. OLDLOC |
| 823 | # is the address in the inferior memory where the instruction to |
| 824 | # relocate is currently at. On input, TO points to the destination |
| 825 | # where we want the instruction to be copied (and possibly adjusted) |
| 826 | # to. On output, it points to one past the end of the resulting |
| 827 | # instruction(s). The effect of executing the instruction at TO shall |
| 828 | # be the same as if executing it at FROM. For example, call |
| 829 | # instructions that implicitly push the return address on the stack |
| 830 | # should be adjusted to return to the instruction after OLDLOC; |
| 831 | # relative branches, and other PC-relative instructions need the |
| 832 | # offset adjusted; etc. |
| 833 | M:void:relocate_instruction:CORE_ADDR *to, CORE_ADDR from:to, from::NULL |
| 834 | |
| 835 | # Refresh overlay mapped state for section OSECT. |
| 836 | F:void:overlay_update:struct obj_section *osect:osect |
| 837 | |
| 838 | M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd |
| 839 | |
| 840 | # Handle special encoding of static variables in stabs debug info. |
| 841 | F:const char *:static_transform_name:const char *name:name |
| 842 | # Set if the address in N_SO or N_FUN stabs may be zero. |
| 843 | v:int:sofun_address_maybe_missing:::0:0::0 |
| 844 | |
| 845 | # Parse the instruction at ADDR storing in the record execution log |
| 846 | # the registers REGCACHE and memory ranges that will be affected when |
| 847 | # the instruction executes, along with their current values. |
| 848 | # Return -1 if something goes wrong, 0 otherwise. |
| 849 | M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr |
| 850 | |
| 851 | # Save process state after a signal. |
| 852 | # Return -1 if something goes wrong, 0 otherwise. |
| 853 | M:int:process_record_signal:struct regcache *regcache, enum gdb_signal signal:regcache, signal |
| 854 | |
| 855 | # Signal translation: translate inferior's signal (target's) number |
| 856 | # into GDB's representation. The implementation of this method must |
| 857 | # be host independent. IOW, don't rely on symbols of the NAT_FILE |
| 858 | # header (the nm-*.h files), the host <signal.h> header, or similar |
| 859 | # headers. This is mainly used when cross-debugging core files --- |
| 860 | # "Live" targets hide the translation behind the target interface |
| 861 | # (target_wait, target_resume, etc.). |
| 862 | M:enum gdb_signal:gdb_signal_from_target:int signo:signo |
| 863 | |
| 864 | # Signal translation: translate the GDB's internal signal number into |
| 865 | # the inferior's signal (target's) representation. The implementation |
| 866 | # of this method must be host independent. IOW, don't rely on symbols |
| 867 | # of the NAT_FILE header (the nm-*.h files), the host <signal.h> |
| 868 | # header, or similar headers. |
| 869 | # Return the target signal number if found, or -1 if the GDB internal |
| 870 | # signal number is invalid. |
| 871 | M:int:gdb_signal_to_target:enum gdb_signal signal:signal |
| 872 | |
| 873 | # Extra signal info inspection. |
| 874 | # |
| 875 | # Return a type suitable to inspect extra signal information. |
| 876 | M:struct type *:get_siginfo_type:void: |
| 877 | |
| 878 | # Record architecture-specific information from the symbol table. |
| 879 | M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym |
| 880 | |
| 881 | # Function for the 'catch syscall' feature. |
| 882 | |
| 883 | # Get architecture-specific system calls information from registers. |
| 884 | M:LONGEST:get_syscall_number:ptid_t ptid:ptid |
| 885 | |
| 886 | # The filename of the XML syscall for this architecture. |
| 887 | v:const char *:xml_syscall_file:::0:0::0:pstring (gdbarch->xml_syscall_file) |
| 888 | |
| 889 | # Information about system calls from this architecture |
| 890 | v:struct syscalls_info *:syscalls_info:::0:0::0:host_address_to_string (gdbarch->syscalls_info) |
| 891 | |
| 892 | # SystemTap related fields and functions. |
| 893 | |
| 894 | # A NULL-terminated array of prefixes used to mark an integer constant |
| 895 | # on the architecture's assembly. |
| 896 | # For example, on x86 integer constants are written as: |
| 897 | # |
| 898 | # \$10 ;; integer constant 10 |
| 899 | # |
| 900 | # in this case, this prefix would be the character \`\$\'. |
| 901 | v:const char *const *:stap_integer_prefixes:::0:0::0:pstring_list (gdbarch->stap_integer_prefixes) |
| 902 | |
| 903 | # A NULL-terminated array of suffixes used to mark an integer constant |
| 904 | # on the architecture's assembly. |
| 905 | v:const char *const *:stap_integer_suffixes:::0:0::0:pstring_list (gdbarch->stap_integer_suffixes) |
| 906 | |
| 907 | # A NULL-terminated array of prefixes used to mark a register name on |
| 908 | # the architecture's assembly. |
| 909 | # For example, on x86 the register name is written as: |
| 910 | # |
| 911 | # \%eax ;; register eax |
| 912 | # |
| 913 | # in this case, this prefix would be the character \`\%\'. |
| 914 | v:const char *const *:stap_register_prefixes:::0:0::0:pstring_list (gdbarch->stap_register_prefixes) |
| 915 | |
| 916 | # A NULL-terminated array of suffixes used to mark a register name on |
| 917 | # the architecture's assembly. |
| 918 | v:const char *const *:stap_register_suffixes:::0:0::0:pstring_list (gdbarch->stap_register_suffixes) |
| 919 | |
| 920 | # A NULL-terminated array of prefixes used to mark a register |
| 921 | # indirection on the architecture's assembly. |
| 922 | # For example, on x86 the register indirection is written as: |
| 923 | # |
| 924 | # \(\%eax\) ;; indirecting eax |
| 925 | # |
| 926 | # in this case, this prefix would be the charater \`\(\'. |
| 927 | # |
| 928 | # Please note that we use the indirection prefix also for register |
| 929 | # displacement, e.g., \`4\(\%eax\)\' on x86. |
| 930 | v:const char *const *:stap_register_indirection_prefixes:::0:0::0:pstring_list (gdbarch->stap_register_indirection_prefixes) |
| 931 | |
| 932 | # A NULL-terminated array of suffixes used to mark a register |
| 933 | # indirection on the architecture's assembly. |
| 934 | # For example, on x86 the register indirection is written as: |
| 935 | # |
| 936 | # \(\%eax\) ;; indirecting eax |
| 937 | # |
| 938 | # in this case, this prefix would be the charater \`\)\'. |
| 939 | # |
| 940 | # Please note that we use the indirection suffix also for register |
| 941 | # displacement, e.g., \`4\(\%eax\)\' on x86. |
| 942 | v:const char *const *:stap_register_indirection_suffixes:::0:0::0:pstring_list (gdbarch->stap_register_indirection_suffixes) |
| 943 | |
| 944 | # Prefix(es) used to name a register using GDB's nomenclature. |
| 945 | # |
| 946 | # For example, on PPC a register is represented by a number in the assembly |
| 947 | # language (e.g., \`10\' is the 10th general-purpose register). However, |
| 948 | # inside GDB this same register has an \`r\' appended to its name, so the 10th |
| 949 | # register would be represented as \`r10\' internally. |
| 950 | v:const char *:stap_gdb_register_prefix:::0:0::0:pstring (gdbarch->stap_gdb_register_prefix) |
| 951 | |
| 952 | # Suffix used to name a register using GDB's nomenclature. |
| 953 | v:const char *:stap_gdb_register_suffix:::0:0::0:pstring (gdbarch->stap_gdb_register_suffix) |
| 954 | |
| 955 | # Check if S is a single operand. |
| 956 | # |
| 957 | # Single operands can be: |
| 958 | # \- Literal integers, e.g. \`\$10\' on x86 |
| 959 | # \- Register access, e.g. \`\%eax\' on x86 |
| 960 | # \- Register indirection, e.g. \`\(\%eax\)\' on x86 |
| 961 | # \- Register displacement, e.g. \`4\(\%eax\)\' on x86 |
| 962 | # |
| 963 | # This function should check for these patterns on the string |
| 964 | # and return 1 if some were found, or zero otherwise. Please try to match |
| 965 | # as much info as you can from the string, i.e., if you have to match |
| 966 | # something like \`\(\%\', do not match just the \`\(\'. |
| 967 | M:int:stap_is_single_operand:const char *s:s |
| 968 | |
| 969 | # Function used to handle a "special case" in the parser. |
| 970 | # |
| 971 | # A "special case" is considered to be an unknown token, i.e., a token |
| 972 | # that the parser does not know how to parse. A good example of special |
| 973 | # case would be ARM's register displacement syntax: |
| 974 | # |
| 975 | # [R0, #4] ;; displacing R0 by 4 |
| 976 | # |
| 977 | # Since the parser assumes that a register displacement is of the form: |
| 978 | # |
| 979 | # <number> <indirection_prefix> <register_name> <indirection_suffix> |
| 980 | # |
| 981 | # it means that it will not be able to recognize and parse this odd syntax. |
| 982 | # Therefore, we should add a special case function that will handle this token. |
| 983 | # |
| 984 | # This function should generate the proper expression form of the expression |
| 985 | # using GDB\'s internal expression mechanism (e.g., \`write_exp_elt_opcode\' |
| 986 | # and so on). It should also return 1 if the parsing was successful, or zero |
| 987 | # if the token was not recognized as a special token (in this case, returning |
| 988 | # zero means that the special parser is deferring the parsing to the generic |
| 989 | # parser), and should advance the buffer pointer (p->arg). |
| 990 | M:int:stap_parse_special_token:struct stap_parse_info *p:p |
| 991 | |
| 992 | # DTrace related functions. |
| 993 | |
| 994 | # The expression to compute the NARTGth+1 argument to a DTrace USDT probe. |
| 995 | # NARG must be >= 0. |
| 996 | M:void:dtrace_parse_probe_argument:struct parser_state *pstate, int narg:pstate, narg |
| 997 | |
| 998 | # True if the given ADDR does not contain the instruction sequence |
| 999 | # corresponding to a disabled DTrace is-enabled probe. |
| 1000 | M:int:dtrace_probe_is_enabled:CORE_ADDR addr:addr |
| 1001 | |
| 1002 | # Enable a DTrace is-enabled probe at ADDR. |
| 1003 | M:void:dtrace_enable_probe:CORE_ADDR addr:addr |
| 1004 | |
| 1005 | # Disable a DTrace is-enabled probe at ADDR. |
| 1006 | M:void:dtrace_disable_probe:CORE_ADDR addr:addr |
| 1007 | |
| 1008 | # True if the list of shared libraries is one and only for all |
| 1009 | # processes, as opposed to a list of shared libraries per inferior. |
| 1010 | # This usually means that all processes, although may or may not share |
| 1011 | # an address space, will see the same set of symbols at the same |
| 1012 | # addresses. |
| 1013 | v:int:has_global_solist:::0:0::0 |
| 1014 | |
| 1015 | # On some targets, even though each inferior has its own private |
| 1016 | # address space, the debug interface takes care of making breakpoints |
| 1017 | # visible to all address spaces automatically. For such cases, |
| 1018 | # this property should be set to true. |
| 1019 | v:int:has_global_breakpoints:::0:0::0 |
| 1020 | |
| 1021 | # True if inferiors share an address space (e.g., uClinux). |
| 1022 | m:int:has_shared_address_space:void:::default_has_shared_address_space::0 |
| 1023 | |
| 1024 | # True if a fast tracepoint can be set at an address. |
| 1025 | m:int:fast_tracepoint_valid_at:CORE_ADDR addr, char **msg:addr, msg::default_fast_tracepoint_valid_at::0 |
| 1026 | |
| 1027 | # Return the "auto" target charset. |
| 1028 | f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0 |
| 1029 | # Return the "auto" target wide charset. |
| 1030 | f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0 |
| 1031 | |
| 1032 | # If non-empty, this is a file extension that will be opened in place |
| 1033 | # of the file extension reported by the shared library list. |
| 1034 | # |
| 1035 | # This is most useful for toolchains that use a post-linker tool, |
| 1036 | # where the names of the files run on the target differ in extension |
| 1037 | # compared to the names of the files GDB should load for debug info. |
| 1038 | v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension) |
| 1039 | |
| 1040 | # If true, the target OS has DOS-based file system semantics. That |
| 1041 | # is, absolute paths include a drive name, and the backslash is |
| 1042 | # considered a directory separator. |
| 1043 | v:int:has_dos_based_file_system:::0:0::0 |
| 1044 | |
| 1045 | # Generate bytecodes to collect the return address in a frame. |
| 1046 | # Since the bytecodes run on the target, possibly with GDB not even |
| 1047 | # connected, the full unwinding machinery is not available, and |
| 1048 | # typically this function will issue bytecodes for one or more likely |
| 1049 | # places that the return address may be found. |
| 1050 | m:void:gen_return_address:struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope:ax, value, scope::default_gen_return_address::0 |
| 1051 | |
| 1052 | # Implement the "info proc" command. |
| 1053 | M:void:info_proc:const char *args, enum info_proc_what what:args, what |
| 1054 | |
| 1055 | # Implement the "info proc" command for core files. Noe that there |
| 1056 | # are two "info_proc"-like methods on gdbarch -- one for core files, |
| 1057 | # one for live targets. |
| 1058 | M:void:core_info_proc:const char *args, enum info_proc_what what:args, what |
| 1059 | |
| 1060 | # Iterate over all objfiles in the order that makes the most sense |
| 1061 | # for the architecture to make global symbol searches. |
| 1062 | # |
| 1063 | # CB is a callback function where OBJFILE is the objfile to be searched, |
| 1064 | # and CB_DATA a pointer to user-defined data (the same data that is passed |
| 1065 | # when calling this gdbarch method). The iteration stops if this function |
| 1066 | # returns nonzero. |
| 1067 | # |
| 1068 | # CB_DATA is a pointer to some user-defined data to be passed to |
| 1069 | # the callback. |
| 1070 | # |
| 1071 | # If not NULL, CURRENT_OBJFILE corresponds to the objfile being |
| 1072 | # inspected when the symbol search was requested. |
| 1073 | m:void:iterate_over_objfiles_in_search_order:iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile:cb, cb_data, current_objfile:0:default_iterate_over_objfiles_in_search_order::0 |
| 1074 | |
| 1075 | # Ravenscar arch-dependent ops. |
| 1076 | v:struct ravenscar_arch_ops *:ravenscar_ops:::NULL:NULL::0:host_address_to_string (gdbarch->ravenscar_ops) |
| 1077 | |
| 1078 | # Return non-zero if the instruction at ADDR is a call; zero otherwise. |
| 1079 | m:int:insn_is_call:CORE_ADDR addr:addr::default_insn_is_call::0 |
| 1080 | |
| 1081 | # Return non-zero if the instruction at ADDR is a return; zero otherwise. |
| 1082 | m:int:insn_is_ret:CORE_ADDR addr:addr::default_insn_is_ret::0 |
| 1083 | |
| 1084 | # Return non-zero if the instruction at ADDR is a jump; zero otherwise. |
| 1085 | m:int:insn_is_jump:CORE_ADDR addr:addr::default_insn_is_jump::0 |
| 1086 | |
| 1087 | # Read one auxv entry from *READPTR, not reading locations >= ENDPTR. |
| 1088 | # Return 0 if *READPTR is already at the end of the buffer. |
| 1089 | # Return -1 if there is insufficient buffer for a whole entry. |
| 1090 | # Return 1 if an entry was read into *TYPEP and *VALP. |
| 1091 | M:int:auxv_parse:gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp:readptr, endptr, typep, valp |
| 1092 | |
| 1093 | # Find the address range of the current inferior's vsyscall/vDSO, and |
| 1094 | # write it to *RANGE. If the vsyscall's length can't be determined, a |
| 1095 | # range with zero length is returned. Returns true if the vsyscall is |
| 1096 | # found, false otherwise. |
| 1097 | m:int:vsyscall_range:struct mem_range *range:range::default_vsyscall_range::0 |
| 1098 | |
| 1099 | # Allocate SIZE bytes of PROT protected page aligned memory in inferior. |
| 1100 | # PROT has GDB_MMAP_PROT_* bitmask format. |
| 1101 | # Throw an error if it is not possible. Returned address is always valid. |
| 1102 | f:CORE_ADDR:infcall_mmap:CORE_ADDR size, unsigned prot:size, prot::default_infcall_mmap::0 |
| 1103 | |
| 1104 | # Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap. |
| 1105 | # Print a warning if it is not possible. |
| 1106 | f:void:infcall_munmap:CORE_ADDR addr, CORE_ADDR size:addr, size::default_infcall_munmap::0 |
| 1107 | |
| 1108 | # Return string (caller has to use xfree for it) with options for GCC |
| 1109 | # to produce code for this target, typically "-m64", "-m32" or "-m31". |
| 1110 | # These options are put before CU's DW_AT_producer compilation options so that |
| 1111 | # they can override it. Method may also return NULL. |
| 1112 | m:char *:gcc_target_options:void:::default_gcc_target_options::0 |
| 1113 | |
| 1114 | # Return a regular expression that matches names used by this |
| 1115 | # architecture in GNU configury triplets. The result is statically |
| 1116 | # allocated and must not be freed. The default implementation simply |
| 1117 | # returns the BFD architecture name, which is correct in nearly every |
| 1118 | # case. |
| 1119 | m:const char *:gnu_triplet_regexp:void:::default_gnu_triplet_regexp::0 |
| 1120 | |
| 1121 | # Return the size in 8-bit bytes of an addressable memory unit on this |
| 1122 | # architecture. This corresponds to the number of 8-bit bytes associated to |
| 1123 | # each address in memory. |
| 1124 | m:int:addressable_memory_unit_size:void:::default_addressable_memory_unit_size::0 |
| 1125 | |
| 1126 | EOF |
| 1127 | } |
| 1128 | |
| 1129 | # |
| 1130 | # The .log file |
| 1131 | # |
| 1132 | exec > new-gdbarch.log |
| 1133 | function_list | while do_read |
| 1134 | do |
| 1135 | cat <<EOF |
| 1136 | ${class} ${returntype} ${function} ($formal) |
| 1137 | EOF |
| 1138 | for r in ${read} |
| 1139 | do |
| 1140 | eval echo \"\ \ \ \ ${r}=\${${r}}\" |
| 1141 | done |
| 1142 | if class_is_predicate_p && fallback_default_p |
| 1143 | then |
| 1144 | echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2 |
| 1145 | kill $$ |
| 1146 | exit 1 |
| 1147 | fi |
| 1148 | if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ] |
| 1149 | then |
| 1150 | echo "Error: postdefault is useless when invalid_p=0" 1>&2 |
| 1151 | kill $$ |
| 1152 | exit 1 |
| 1153 | fi |
| 1154 | if class_is_multiarch_p |
| 1155 | then |
| 1156 | if class_is_predicate_p ; then : |
| 1157 | elif test "x${predefault}" = "x" |
| 1158 | then |
| 1159 | echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2 |
| 1160 | kill $$ |
| 1161 | exit 1 |
| 1162 | fi |
| 1163 | fi |
| 1164 | echo "" |
| 1165 | done |
| 1166 | |
| 1167 | exec 1>&2 |
| 1168 | compare_new gdbarch.log |
| 1169 | |
| 1170 | |
| 1171 | copyright () |
| 1172 | { |
| 1173 | cat <<EOF |
| 1174 | /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */ |
| 1175 | /* vi:set ro: */ |
| 1176 | |
| 1177 | /* Dynamic architecture support for GDB, the GNU debugger. |
| 1178 | |
| 1179 | Copyright (C) 1998-2015 Free Software Foundation, Inc. |
| 1180 | |
| 1181 | This file is part of GDB. |
| 1182 | |
| 1183 | This program is free software; you can redistribute it and/or modify |
| 1184 | it under the terms of the GNU General Public License as published by |
| 1185 | the Free Software Foundation; either version 3 of the License, or |
| 1186 | (at your option) any later version. |
| 1187 | |
| 1188 | This program is distributed in the hope that it will be useful, |
| 1189 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 1190 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 1191 | GNU General Public License for more details. |
| 1192 | |
| 1193 | You should have received a copy of the GNU General Public License |
| 1194 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 1195 | |
| 1196 | /* This file was created with the aid of \`\`gdbarch.sh''. |
| 1197 | |
| 1198 | The Bourne shell script \`\`gdbarch.sh'' creates the files |
| 1199 | \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them |
| 1200 | against the existing \`\`gdbarch.[hc]''. Any differences found |
| 1201 | being reported. |
| 1202 | |
| 1203 | If editing this file, please also run gdbarch.sh and merge any |
| 1204 | changes into that script. Conversely, when making sweeping changes |
| 1205 | to this file, modifying gdbarch.sh and using its output may prove |
| 1206 | easier. */ |
| 1207 | |
| 1208 | EOF |
| 1209 | } |
| 1210 | |
| 1211 | # |
| 1212 | # The .h file |
| 1213 | # |
| 1214 | |
| 1215 | exec > new-gdbarch.h |
| 1216 | copyright |
| 1217 | cat <<EOF |
| 1218 | #ifndef GDBARCH_H |
| 1219 | #define GDBARCH_H |
| 1220 | |
| 1221 | #include "frame.h" |
| 1222 | |
| 1223 | struct floatformat; |
| 1224 | struct ui_file; |
| 1225 | struct value; |
| 1226 | struct objfile; |
| 1227 | struct obj_section; |
| 1228 | struct minimal_symbol; |
| 1229 | struct regcache; |
| 1230 | struct reggroup; |
| 1231 | struct regset; |
| 1232 | struct disassemble_info; |
| 1233 | struct target_ops; |
| 1234 | struct obstack; |
| 1235 | struct bp_target_info; |
| 1236 | struct target_desc; |
| 1237 | struct objfile; |
| 1238 | struct symbol; |
| 1239 | struct displaced_step_closure; |
| 1240 | struct core_regset_section; |
| 1241 | struct syscall; |
| 1242 | struct agent_expr; |
| 1243 | struct axs_value; |
| 1244 | struct stap_parse_info; |
| 1245 | struct parser_state; |
| 1246 | struct ravenscar_arch_ops; |
| 1247 | struct elf_internal_linux_prpsinfo; |
| 1248 | struct mem_range; |
| 1249 | struct syscalls_info; |
| 1250 | |
| 1251 | #include "regcache.h" |
| 1252 | |
| 1253 | /* The architecture associated with the inferior through the |
| 1254 | connection to the target. |
| 1255 | |
| 1256 | The architecture vector provides some information that is really a |
| 1257 | property of the inferior, accessed through a particular target: |
| 1258 | ptrace operations; the layout of certain RSP packets; the solib_ops |
| 1259 | vector; etc. To differentiate architecture accesses to |
| 1260 | per-inferior/target properties from |
| 1261 | per-thread/per-frame/per-objfile properties, accesses to |
| 1262 | per-inferior/target properties should be made through this |
| 1263 | gdbarch. */ |
| 1264 | |
| 1265 | /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */ |
| 1266 | extern struct gdbarch *target_gdbarch (void); |
| 1267 | |
| 1268 | /* Callback type for the 'iterate_over_objfiles_in_search_order' |
| 1269 | gdbarch method. */ |
| 1270 | |
| 1271 | typedef int (iterate_over_objfiles_in_search_order_cb_ftype) |
| 1272 | (struct objfile *objfile, void *cb_data); |
| 1273 | |
| 1274 | /* Callback type for regset section iterators. The callback usually |
| 1275 | invokes the REGSET's supply or collect method, to which it must |
| 1276 | pass a buffer with at least the given SIZE. SECT_NAME is a BFD |
| 1277 | section name, and HUMAN_NAME is used for diagnostic messages. |
| 1278 | CB_DATA should have been passed unchanged through the iterator. */ |
| 1279 | |
| 1280 | typedef void (iterate_over_regset_sections_cb) |
| 1281 | (const char *sect_name, int size, const struct regset *regset, |
| 1282 | const char *human_name, void *cb_data); |
| 1283 | EOF |
| 1284 | |
| 1285 | # function typedef's |
| 1286 | printf "\n" |
| 1287 | printf "\n" |
| 1288 | printf "/* The following are pre-initialized by GDBARCH. */\n" |
| 1289 | function_list | while do_read |
| 1290 | do |
| 1291 | if class_is_info_p |
| 1292 | then |
| 1293 | printf "\n" |
| 1294 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" |
| 1295 | printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n" |
| 1296 | fi |
| 1297 | done |
| 1298 | |
| 1299 | # function typedef's |
| 1300 | printf "\n" |
| 1301 | printf "\n" |
| 1302 | printf "/* The following are initialized by the target dependent code. */\n" |
| 1303 | function_list | while do_read |
| 1304 | do |
| 1305 | if [ -n "${comment}" ] |
| 1306 | then |
| 1307 | echo "${comment}" | sed \ |
| 1308 | -e '2 s,#,/*,' \ |
| 1309 | -e '3,$ s,#, ,' \ |
| 1310 | -e '$ s,$, */,' |
| 1311 | fi |
| 1312 | |
| 1313 | if class_is_predicate_p |
| 1314 | then |
| 1315 | printf "\n" |
| 1316 | printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n" |
| 1317 | fi |
| 1318 | if class_is_variable_p |
| 1319 | then |
| 1320 | printf "\n" |
| 1321 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" |
| 1322 | printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n" |
| 1323 | fi |
| 1324 | if class_is_function_p |
| 1325 | then |
| 1326 | printf "\n" |
| 1327 | if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p |
| 1328 | then |
| 1329 | printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n" |
| 1330 | elif class_is_multiarch_p |
| 1331 | then |
| 1332 | printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n" |
| 1333 | else |
| 1334 | printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n" |
| 1335 | fi |
| 1336 | if [ "x${formal}" = "xvoid" ] |
| 1337 | then |
| 1338 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" |
| 1339 | else |
| 1340 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n" |
| 1341 | fi |
| 1342 | printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n" |
| 1343 | fi |
| 1344 | done |
| 1345 | |
| 1346 | # close it off |
| 1347 | cat <<EOF |
| 1348 | |
| 1349 | /* Definition for an unknown syscall, used basically in error-cases. */ |
| 1350 | #define UNKNOWN_SYSCALL (-1) |
| 1351 | |
| 1352 | extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch); |
| 1353 | |
| 1354 | |
| 1355 | /* Mechanism for co-ordinating the selection of a specific |
| 1356 | architecture. |
| 1357 | |
| 1358 | GDB targets (*-tdep.c) can register an interest in a specific |
| 1359 | architecture. Other GDB components can register a need to maintain |
| 1360 | per-architecture data. |
| 1361 | |
| 1362 | The mechanisms below ensures that there is only a loose connection |
| 1363 | between the set-architecture command and the various GDB |
| 1364 | components. Each component can independently register their need |
| 1365 | to maintain architecture specific data with gdbarch. |
| 1366 | |
| 1367 | Pragmatics: |
| 1368 | |
| 1369 | Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It |
| 1370 | didn't scale. |
| 1371 | |
| 1372 | The more traditional mega-struct containing architecture specific |
| 1373 | data for all the various GDB components was also considered. Since |
| 1374 | GDB is built from a variable number of (fairly independent) |
| 1375 | components it was determined that the global aproach was not |
| 1376 | applicable. */ |
| 1377 | |
| 1378 | |
| 1379 | /* Register a new architectural family with GDB. |
| 1380 | |
| 1381 | Register support for the specified ARCHITECTURE with GDB. When |
| 1382 | gdbarch determines that the specified architecture has been |
| 1383 | selected, the corresponding INIT function is called. |
| 1384 | |
| 1385 | -- |
| 1386 | |
| 1387 | The INIT function takes two parameters: INFO which contains the |
| 1388 | information available to gdbarch about the (possibly new) |
| 1389 | architecture; ARCHES which is a list of the previously created |
| 1390 | \`\`struct gdbarch'' for this architecture. |
| 1391 | |
| 1392 | The INFO parameter is, as far as possible, be pre-initialized with |
| 1393 | information obtained from INFO.ABFD or the global defaults. |
| 1394 | |
| 1395 | The ARCHES parameter is a linked list (sorted most recently used) |
| 1396 | of all the previously created architures for this architecture |
| 1397 | family. The (possibly NULL) ARCHES->gdbarch can used to access |
| 1398 | values from the previously selected architecture for this |
| 1399 | architecture family. |
| 1400 | |
| 1401 | The INIT function shall return any of: NULL - indicating that it |
| 1402 | doesn't recognize the selected architecture; an existing \`\`struct |
| 1403 | gdbarch'' from the ARCHES list - indicating that the new |
| 1404 | architecture is just a synonym for an earlier architecture (see |
| 1405 | gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch'' |
| 1406 | - that describes the selected architecture (see gdbarch_alloc()). |
| 1407 | |
| 1408 | The DUMP_TDEP function shall print out all target specific values. |
| 1409 | Care should be taken to ensure that the function works in both the |
| 1410 | multi-arch and non- multi-arch cases. */ |
| 1411 | |
| 1412 | struct gdbarch_list |
| 1413 | { |
| 1414 | struct gdbarch *gdbarch; |
| 1415 | struct gdbarch_list *next; |
| 1416 | }; |
| 1417 | |
| 1418 | struct gdbarch_info |
| 1419 | { |
| 1420 | /* Use default: NULL (ZERO). */ |
| 1421 | const struct bfd_arch_info *bfd_arch_info; |
| 1422 | |
| 1423 | /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */ |
| 1424 | enum bfd_endian byte_order; |
| 1425 | |
| 1426 | enum bfd_endian byte_order_for_code; |
| 1427 | |
| 1428 | /* Use default: NULL (ZERO). */ |
| 1429 | bfd *abfd; |
| 1430 | |
| 1431 | /* Use default: NULL (ZERO). */ |
| 1432 | struct gdbarch_tdep_info *tdep_info; |
| 1433 | |
| 1434 | /* Use default: GDB_OSABI_UNINITIALIZED (-1). */ |
| 1435 | enum gdb_osabi osabi; |
| 1436 | |
| 1437 | /* Use default: NULL (ZERO). */ |
| 1438 | const struct target_desc *target_desc; |
| 1439 | }; |
| 1440 | |
| 1441 | typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches); |
| 1442 | typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file); |
| 1443 | |
| 1444 | /* DEPRECATED - use gdbarch_register() */ |
| 1445 | extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *); |
| 1446 | |
| 1447 | extern void gdbarch_register (enum bfd_architecture architecture, |
| 1448 | gdbarch_init_ftype *, |
| 1449 | gdbarch_dump_tdep_ftype *); |
| 1450 | |
| 1451 | |
| 1452 | /* Return a freshly allocated, NULL terminated, array of the valid |
| 1453 | architecture names. Since architectures are registered during the |
| 1454 | _initialize phase this function only returns useful information |
| 1455 | once initialization has been completed. */ |
| 1456 | |
| 1457 | extern const char **gdbarch_printable_names (void); |
| 1458 | |
| 1459 | |
| 1460 | /* Helper function. Search the list of ARCHES for a GDBARCH that |
| 1461 | matches the information provided by INFO. */ |
| 1462 | |
| 1463 | extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info); |
| 1464 | |
| 1465 | |
| 1466 | /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform |
| 1467 | basic initialization using values obtained from the INFO and TDEP |
| 1468 | parameters. set_gdbarch_*() functions are called to complete the |
| 1469 | initialization of the object. */ |
| 1470 | |
| 1471 | extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep); |
| 1472 | |
| 1473 | |
| 1474 | /* Helper function. Free a partially-constructed \`\`struct gdbarch''. |
| 1475 | It is assumed that the caller freeds the \`\`struct |
| 1476 | gdbarch_tdep''. */ |
| 1477 | |
| 1478 | extern void gdbarch_free (struct gdbarch *); |
| 1479 | |
| 1480 | |
| 1481 | /* Helper function. Allocate memory from the \`\`struct gdbarch'' |
| 1482 | obstack. The memory is freed when the corresponding architecture |
| 1483 | is also freed. */ |
| 1484 | |
| 1485 | extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size); |
| 1486 | #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE))) |
| 1487 | #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE))) |
| 1488 | |
| 1489 | /* Duplicate STRING, returning an equivalent string that's allocated on the |
| 1490 | obstack associated with GDBARCH. The string is freed when the corresponding |
| 1491 | architecture is also freed. */ |
| 1492 | |
| 1493 | extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string); |
| 1494 | |
| 1495 | /* Helper function. Force an update of the current architecture. |
| 1496 | |
| 1497 | The actual architecture selected is determined by INFO, \`\`(gdb) set |
| 1498 | architecture'' et.al., the existing architecture and BFD's default |
| 1499 | architecture. INFO should be initialized to zero and then selected |
| 1500 | fields should be updated. |
| 1501 | |
| 1502 | Returns non-zero if the update succeeds. */ |
| 1503 | |
| 1504 | extern int gdbarch_update_p (struct gdbarch_info info); |
| 1505 | |
| 1506 | |
| 1507 | /* Helper function. Find an architecture matching info. |
| 1508 | |
| 1509 | INFO should be initialized using gdbarch_info_init, relevant fields |
| 1510 | set, and then finished using gdbarch_info_fill. |
| 1511 | |
| 1512 | Returns the corresponding architecture, or NULL if no matching |
| 1513 | architecture was found. */ |
| 1514 | |
| 1515 | extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info); |
| 1516 | |
| 1517 | |
| 1518 | /* Helper function. Set the target gdbarch to "gdbarch". */ |
| 1519 | |
| 1520 | extern void set_target_gdbarch (struct gdbarch *gdbarch); |
| 1521 | |
| 1522 | |
| 1523 | /* Register per-architecture data-pointer. |
| 1524 | |
| 1525 | Reserve space for a per-architecture data-pointer. An identifier |
| 1526 | for the reserved data-pointer is returned. That identifer should |
| 1527 | be saved in a local static variable. |
| 1528 | |
| 1529 | Memory for the per-architecture data shall be allocated using |
| 1530 | gdbarch_obstack_zalloc. That memory will be deleted when the |
| 1531 | corresponding architecture object is deleted. |
| 1532 | |
| 1533 | When a previously created architecture is re-selected, the |
| 1534 | per-architecture data-pointer for that previous architecture is |
| 1535 | restored. INIT() is not re-called. |
| 1536 | |
| 1537 | Multiple registrarants for any architecture are allowed (and |
| 1538 | strongly encouraged). */ |
| 1539 | |
| 1540 | struct gdbarch_data; |
| 1541 | |
| 1542 | typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack); |
| 1543 | extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init); |
| 1544 | typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch); |
| 1545 | extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init); |
| 1546 | extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch, |
| 1547 | struct gdbarch_data *data, |
| 1548 | void *pointer); |
| 1549 | |
| 1550 | extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *); |
| 1551 | |
| 1552 | |
| 1553 | /* Set the dynamic target-system-dependent parameters (architecture, |
| 1554 | byte-order, ...) using information found in the BFD. */ |
| 1555 | |
| 1556 | extern void set_gdbarch_from_file (bfd *); |
| 1557 | |
| 1558 | |
| 1559 | /* Initialize the current architecture to the "first" one we find on |
| 1560 | our list. */ |
| 1561 | |
| 1562 | extern void initialize_current_architecture (void); |
| 1563 | |
| 1564 | /* gdbarch trace variable */ |
| 1565 | extern unsigned int gdbarch_debug; |
| 1566 | |
| 1567 | extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file); |
| 1568 | |
| 1569 | #endif |
| 1570 | EOF |
| 1571 | exec 1>&2 |
| 1572 | #../move-if-change new-gdbarch.h gdbarch.h |
| 1573 | compare_new gdbarch.h |
| 1574 | |
| 1575 | |
| 1576 | # |
| 1577 | # C file |
| 1578 | # |
| 1579 | |
| 1580 | exec > new-gdbarch.c |
| 1581 | copyright |
| 1582 | cat <<EOF |
| 1583 | |
| 1584 | #include "defs.h" |
| 1585 | #include "arch-utils.h" |
| 1586 | |
| 1587 | #include "gdbcmd.h" |
| 1588 | #include "inferior.h" |
| 1589 | #include "symcat.h" |
| 1590 | |
| 1591 | #include "floatformat.h" |
| 1592 | #include "reggroups.h" |
| 1593 | #include "osabi.h" |
| 1594 | #include "gdb_obstack.h" |
| 1595 | #include "observer.h" |
| 1596 | #include "regcache.h" |
| 1597 | #include "objfiles.h" |
| 1598 | |
| 1599 | /* Static function declarations */ |
| 1600 | |
| 1601 | static void alloc_gdbarch_data (struct gdbarch *); |
| 1602 | |
| 1603 | /* Non-zero if we want to trace architecture code. */ |
| 1604 | |
| 1605 | #ifndef GDBARCH_DEBUG |
| 1606 | #define GDBARCH_DEBUG 0 |
| 1607 | #endif |
| 1608 | unsigned int gdbarch_debug = GDBARCH_DEBUG; |
| 1609 | static void |
| 1610 | show_gdbarch_debug (struct ui_file *file, int from_tty, |
| 1611 | struct cmd_list_element *c, const char *value) |
| 1612 | { |
| 1613 | fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value); |
| 1614 | } |
| 1615 | |
| 1616 | static const char * |
| 1617 | pformat (const struct floatformat **format) |
| 1618 | { |
| 1619 | if (format == NULL) |
| 1620 | return "(null)"; |
| 1621 | else |
| 1622 | /* Just print out one of them - this is only for diagnostics. */ |
| 1623 | return format[0]->name; |
| 1624 | } |
| 1625 | |
| 1626 | static const char * |
| 1627 | pstring (const char *string) |
| 1628 | { |
| 1629 | if (string == NULL) |
| 1630 | return "(null)"; |
| 1631 | return string; |
| 1632 | } |
| 1633 | |
| 1634 | /* Helper function to print a list of strings, represented as "const |
| 1635 | char *const *". The list is printed comma-separated. */ |
| 1636 | |
| 1637 | static char * |
| 1638 | pstring_list (const char *const *list) |
| 1639 | { |
| 1640 | static char ret[100]; |
| 1641 | const char *const *p; |
| 1642 | size_t offset = 0; |
| 1643 | |
| 1644 | if (list == NULL) |
| 1645 | return "(null)"; |
| 1646 | |
| 1647 | ret[0] = '\0'; |
| 1648 | for (p = list; *p != NULL && offset < sizeof (ret); ++p) |
| 1649 | { |
| 1650 | size_t s = xsnprintf (ret + offset, sizeof (ret) - offset, "%s, ", *p); |
| 1651 | offset += 2 + s; |
| 1652 | } |
| 1653 | |
| 1654 | if (offset > 0) |
| 1655 | { |
| 1656 | gdb_assert (offset - 2 < sizeof (ret)); |
| 1657 | ret[offset - 2] = '\0'; |
| 1658 | } |
| 1659 | |
| 1660 | return ret; |
| 1661 | } |
| 1662 | |
| 1663 | EOF |
| 1664 | |
| 1665 | # gdbarch open the gdbarch object |
| 1666 | printf "\n" |
| 1667 | printf "/* Maintain the struct gdbarch object. */\n" |
| 1668 | printf "\n" |
| 1669 | printf "struct gdbarch\n" |
| 1670 | printf "{\n" |
| 1671 | printf " /* Has this architecture been fully initialized? */\n" |
| 1672 | printf " int initialized_p;\n" |
| 1673 | printf "\n" |
| 1674 | printf " /* An obstack bound to the lifetime of the architecture. */\n" |
| 1675 | printf " struct obstack *obstack;\n" |
| 1676 | printf "\n" |
| 1677 | printf " /* basic architectural information. */\n" |
| 1678 | function_list | while do_read |
| 1679 | do |
| 1680 | if class_is_info_p |
| 1681 | then |
| 1682 | printf " ${returntype} ${function};\n" |
| 1683 | fi |
| 1684 | done |
| 1685 | printf "\n" |
| 1686 | printf " /* target specific vector. */\n" |
| 1687 | printf " struct gdbarch_tdep *tdep;\n" |
| 1688 | printf " gdbarch_dump_tdep_ftype *dump_tdep;\n" |
| 1689 | printf "\n" |
| 1690 | printf " /* per-architecture data-pointers. */\n" |
| 1691 | printf " unsigned nr_data;\n" |
| 1692 | printf " void **data;\n" |
| 1693 | printf "\n" |
| 1694 | cat <<EOF |
| 1695 | /* Multi-arch values. |
| 1696 | |
| 1697 | When extending this structure you must: |
| 1698 | |
| 1699 | Add the field below. |
| 1700 | |
| 1701 | Declare set/get functions and define the corresponding |
| 1702 | macro in gdbarch.h. |
| 1703 | |
| 1704 | gdbarch_alloc(): If zero/NULL is not a suitable default, |
| 1705 | initialize the new field. |
| 1706 | |
| 1707 | verify_gdbarch(): Confirm that the target updated the field |
| 1708 | correctly. |
| 1709 | |
| 1710 | gdbarch_dump(): Add a fprintf_unfiltered call so that the new |
| 1711 | field is dumped out |
| 1712 | |
| 1713 | get_gdbarch(): Implement the set/get functions (probably using |
| 1714 | the macro's as shortcuts). |
| 1715 | |
| 1716 | */ |
| 1717 | |
| 1718 | EOF |
| 1719 | function_list | while do_read |
| 1720 | do |
| 1721 | if class_is_variable_p |
| 1722 | then |
| 1723 | printf " ${returntype} ${function};\n" |
| 1724 | elif class_is_function_p |
| 1725 | then |
| 1726 | printf " gdbarch_${function}_ftype *${function};\n" |
| 1727 | fi |
| 1728 | done |
| 1729 | printf "};\n" |
| 1730 | |
| 1731 | # Create a new gdbarch struct |
| 1732 | cat <<EOF |
| 1733 | |
| 1734 | /* Create a new \`\`struct gdbarch'' based on information provided by |
| 1735 | \`\`struct gdbarch_info''. */ |
| 1736 | EOF |
| 1737 | printf "\n" |
| 1738 | cat <<EOF |
| 1739 | struct gdbarch * |
| 1740 | gdbarch_alloc (const struct gdbarch_info *info, |
| 1741 | struct gdbarch_tdep *tdep) |
| 1742 | { |
| 1743 | struct gdbarch *gdbarch; |
| 1744 | |
| 1745 | /* Create an obstack for allocating all the per-architecture memory, |
| 1746 | then use that to allocate the architecture vector. */ |
| 1747 | struct obstack *obstack = XNEW (struct obstack); |
| 1748 | obstack_init (obstack); |
| 1749 | gdbarch = XOBNEW (obstack, struct gdbarch); |
| 1750 | memset (gdbarch, 0, sizeof (*gdbarch)); |
| 1751 | gdbarch->obstack = obstack; |
| 1752 | |
| 1753 | alloc_gdbarch_data (gdbarch); |
| 1754 | |
| 1755 | gdbarch->tdep = tdep; |
| 1756 | EOF |
| 1757 | printf "\n" |
| 1758 | function_list | while do_read |
| 1759 | do |
| 1760 | if class_is_info_p |
| 1761 | then |
| 1762 | printf " gdbarch->${function} = info->${function};\n" |
| 1763 | fi |
| 1764 | done |
| 1765 | printf "\n" |
| 1766 | printf " /* Force the explicit initialization of these. */\n" |
| 1767 | function_list | while do_read |
| 1768 | do |
| 1769 | if class_is_function_p || class_is_variable_p |
| 1770 | then |
| 1771 | if [ -n "${predefault}" -a "x${predefault}" != "x0" ] |
| 1772 | then |
| 1773 | printf " gdbarch->${function} = ${predefault};\n" |
| 1774 | fi |
| 1775 | fi |
| 1776 | done |
| 1777 | cat <<EOF |
| 1778 | /* gdbarch_alloc() */ |
| 1779 | |
| 1780 | return gdbarch; |
| 1781 | } |
| 1782 | EOF |
| 1783 | |
| 1784 | # Free a gdbarch struct. |
| 1785 | printf "\n" |
| 1786 | printf "\n" |
| 1787 | cat <<EOF |
| 1788 | /* Allocate extra space using the per-architecture obstack. */ |
| 1789 | |
| 1790 | void * |
| 1791 | gdbarch_obstack_zalloc (struct gdbarch *arch, long size) |
| 1792 | { |
| 1793 | void *data = obstack_alloc (arch->obstack, size); |
| 1794 | |
| 1795 | memset (data, 0, size); |
| 1796 | return data; |
| 1797 | } |
| 1798 | |
| 1799 | /* See gdbarch.h. */ |
| 1800 | |
| 1801 | char * |
| 1802 | gdbarch_obstack_strdup (struct gdbarch *arch, const char *string) |
| 1803 | { |
| 1804 | return obstack_strdup (arch->obstack, string); |
| 1805 | } |
| 1806 | |
| 1807 | |
| 1808 | /* Free a gdbarch struct. This should never happen in normal |
| 1809 | operation --- once you've created a gdbarch, you keep it around. |
| 1810 | However, if an architecture's init function encounters an error |
| 1811 | building the structure, it may need to clean up a partially |
| 1812 | constructed gdbarch. */ |
| 1813 | |
| 1814 | void |
| 1815 | gdbarch_free (struct gdbarch *arch) |
| 1816 | { |
| 1817 | struct obstack *obstack; |
| 1818 | |
| 1819 | gdb_assert (arch != NULL); |
| 1820 | gdb_assert (!arch->initialized_p); |
| 1821 | obstack = arch->obstack; |
| 1822 | obstack_free (obstack, 0); /* Includes the ARCH. */ |
| 1823 | xfree (obstack); |
| 1824 | } |
| 1825 | EOF |
| 1826 | |
| 1827 | # verify a new architecture |
| 1828 | cat <<EOF |
| 1829 | |
| 1830 | |
| 1831 | /* Ensure that all values in a GDBARCH are reasonable. */ |
| 1832 | |
| 1833 | static void |
| 1834 | verify_gdbarch (struct gdbarch *gdbarch) |
| 1835 | { |
| 1836 | struct ui_file *log; |
| 1837 | struct cleanup *cleanups; |
| 1838 | long length; |
| 1839 | char *buf; |
| 1840 | |
| 1841 | log = mem_fileopen (); |
| 1842 | cleanups = make_cleanup_ui_file_delete (log); |
| 1843 | /* fundamental */ |
| 1844 | if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN) |
| 1845 | fprintf_unfiltered (log, "\n\tbyte-order"); |
| 1846 | if (gdbarch->bfd_arch_info == NULL) |
| 1847 | fprintf_unfiltered (log, "\n\tbfd_arch_info"); |
| 1848 | /* Check those that need to be defined for the given multi-arch level. */ |
| 1849 | EOF |
| 1850 | function_list | while do_read |
| 1851 | do |
| 1852 | if class_is_function_p || class_is_variable_p |
| 1853 | then |
| 1854 | if [ "x${invalid_p}" = "x0" ] |
| 1855 | then |
| 1856 | printf " /* Skip verify of ${function}, invalid_p == 0 */\n" |
| 1857 | elif class_is_predicate_p |
| 1858 | then |
| 1859 | printf " /* Skip verify of ${function}, has predicate. */\n" |
| 1860 | # FIXME: See do_read for potential simplification |
| 1861 | elif [ -n "${invalid_p}" -a -n "${postdefault}" ] |
| 1862 | then |
| 1863 | printf " if (${invalid_p})\n" |
| 1864 | printf " gdbarch->${function} = ${postdefault};\n" |
| 1865 | elif [ -n "${predefault}" -a -n "${postdefault}" ] |
| 1866 | then |
| 1867 | printf " if (gdbarch->${function} == ${predefault})\n" |
| 1868 | printf " gdbarch->${function} = ${postdefault};\n" |
| 1869 | elif [ -n "${postdefault}" ] |
| 1870 | then |
| 1871 | printf " if (gdbarch->${function} == 0)\n" |
| 1872 | printf " gdbarch->${function} = ${postdefault};\n" |
| 1873 | elif [ -n "${invalid_p}" ] |
| 1874 | then |
| 1875 | printf " if (${invalid_p})\n" |
| 1876 | printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n" |
| 1877 | elif [ -n "${predefault}" ] |
| 1878 | then |
| 1879 | printf " if (gdbarch->${function} == ${predefault})\n" |
| 1880 | printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n" |
| 1881 | fi |
| 1882 | fi |
| 1883 | done |
| 1884 | cat <<EOF |
| 1885 | buf = ui_file_xstrdup (log, &length); |
| 1886 | make_cleanup (xfree, buf); |
| 1887 | if (length > 0) |
| 1888 | internal_error (__FILE__, __LINE__, |
| 1889 | _("verify_gdbarch: the following are invalid ...%s"), |
| 1890 | buf); |
| 1891 | do_cleanups (cleanups); |
| 1892 | } |
| 1893 | EOF |
| 1894 | |
| 1895 | # dump the structure |
| 1896 | printf "\n" |
| 1897 | printf "\n" |
| 1898 | cat <<EOF |
| 1899 | /* Print out the details of the current architecture. */ |
| 1900 | |
| 1901 | void |
| 1902 | gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file) |
| 1903 | { |
| 1904 | const char *gdb_nm_file = "<not-defined>"; |
| 1905 | |
| 1906 | #if defined (GDB_NM_FILE) |
| 1907 | gdb_nm_file = GDB_NM_FILE; |
| 1908 | #endif |
| 1909 | fprintf_unfiltered (file, |
| 1910 | "gdbarch_dump: GDB_NM_FILE = %s\\n", |
| 1911 | gdb_nm_file); |
| 1912 | EOF |
| 1913 | function_list | sort -t: -k 3 | while do_read |
| 1914 | do |
| 1915 | # First the predicate |
| 1916 | if class_is_predicate_p |
| 1917 | then |
| 1918 | printf " fprintf_unfiltered (file,\n" |
| 1919 | printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n" |
| 1920 | printf " gdbarch_${function}_p (gdbarch));\n" |
| 1921 | fi |
| 1922 | # Print the corresponding value. |
| 1923 | if class_is_function_p |
| 1924 | then |
| 1925 | printf " fprintf_unfiltered (file,\n" |
| 1926 | printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n" |
| 1927 | printf " host_address_to_string (gdbarch->${function}));\n" |
| 1928 | else |
| 1929 | # It is a variable |
| 1930 | case "${print}:${returntype}" in |
| 1931 | :CORE_ADDR ) |
| 1932 | fmt="%s" |
| 1933 | print="core_addr_to_string_nz (gdbarch->${function})" |
| 1934 | ;; |
| 1935 | :* ) |
| 1936 | fmt="%s" |
| 1937 | print="plongest (gdbarch->${function})" |
| 1938 | ;; |
| 1939 | * ) |
| 1940 | fmt="%s" |
| 1941 | ;; |
| 1942 | esac |
| 1943 | printf " fprintf_unfiltered (file,\n" |
| 1944 | printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}" |
| 1945 | printf " ${print});\n" |
| 1946 | fi |
| 1947 | done |
| 1948 | cat <<EOF |
| 1949 | if (gdbarch->dump_tdep != NULL) |
| 1950 | gdbarch->dump_tdep (gdbarch, file); |
| 1951 | } |
| 1952 | EOF |
| 1953 | |
| 1954 | |
| 1955 | # GET/SET |
| 1956 | printf "\n" |
| 1957 | cat <<EOF |
| 1958 | struct gdbarch_tdep * |
| 1959 | gdbarch_tdep (struct gdbarch *gdbarch) |
| 1960 | { |
| 1961 | if (gdbarch_debug >= 2) |
| 1962 | fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n"); |
| 1963 | return gdbarch->tdep; |
| 1964 | } |
| 1965 | EOF |
| 1966 | printf "\n" |
| 1967 | function_list | while do_read |
| 1968 | do |
| 1969 | if class_is_predicate_p |
| 1970 | then |
| 1971 | printf "\n" |
| 1972 | printf "int\n" |
| 1973 | printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n" |
| 1974 | printf "{\n" |
| 1975 | printf " gdb_assert (gdbarch != NULL);\n" |
| 1976 | printf " return ${predicate};\n" |
| 1977 | printf "}\n" |
| 1978 | fi |
| 1979 | if class_is_function_p |
| 1980 | then |
| 1981 | printf "\n" |
| 1982 | printf "${returntype}\n" |
| 1983 | if [ "x${formal}" = "xvoid" ] |
| 1984 | then |
| 1985 | printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" |
| 1986 | else |
| 1987 | printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n" |
| 1988 | fi |
| 1989 | printf "{\n" |
| 1990 | printf " gdb_assert (gdbarch != NULL);\n" |
| 1991 | printf " gdb_assert (gdbarch->${function} != NULL);\n" |
| 1992 | if class_is_predicate_p && test -n "${predefault}" |
| 1993 | then |
| 1994 | # Allow a call to a function with a predicate. |
| 1995 | printf " /* Do not check predicate: ${predicate}, allow call. */\n" |
| 1996 | fi |
| 1997 | printf " if (gdbarch_debug >= 2)\n" |
| 1998 | printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" |
| 1999 | if [ "x${actual}" = "x-" -o "x${actual}" = "x" ] |
| 2000 | then |
| 2001 | if class_is_multiarch_p |
| 2002 | then |
| 2003 | params="gdbarch" |
| 2004 | else |
| 2005 | params="" |
| 2006 | fi |
| 2007 | else |
| 2008 | if class_is_multiarch_p |
| 2009 | then |
| 2010 | params="gdbarch, ${actual}" |
| 2011 | else |
| 2012 | params="${actual}" |
| 2013 | fi |
| 2014 | fi |
| 2015 | if [ "x${returntype}" = "xvoid" ] |
| 2016 | then |
| 2017 | printf " gdbarch->${function} (${params});\n" |
| 2018 | else |
| 2019 | printf " return gdbarch->${function} (${params});\n" |
| 2020 | fi |
| 2021 | printf "}\n" |
| 2022 | printf "\n" |
| 2023 | printf "void\n" |
| 2024 | printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n" |
| 2025 | printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n" |
| 2026 | printf "{\n" |
| 2027 | printf " gdbarch->${function} = ${function};\n" |
| 2028 | printf "}\n" |
| 2029 | elif class_is_variable_p |
| 2030 | then |
| 2031 | printf "\n" |
| 2032 | printf "${returntype}\n" |
| 2033 | printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" |
| 2034 | printf "{\n" |
| 2035 | printf " gdb_assert (gdbarch != NULL);\n" |
| 2036 | if [ "x${invalid_p}" = "x0" ] |
| 2037 | then |
| 2038 | printf " /* Skip verify of ${function}, invalid_p == 0 */\n" |
| 2039 | elif [ -n "${invalid_p}" ] |
| 2040 | then |
| 2041 | printf " /* Check variable is valid. */\n" |
| 2042 | printf " gdb_assert (!(${invalid_p}));\n" |
| 2043 | elif [ -n "${predefault}" ] |
| 2044 | then |
| 2045 | printf " /* Check variable changed from pre-default. */\n" |
| 2046 | printf " gdb_assert (gdbarch->${function} != ${predefault});\n" |
| 2047 | fi |
| 2048 | printf " if (gdbarch_debug >= 2)\n" |
| 2049 | printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" |
| 2050 | printf " return gdbarch->${function};\n" |
| 2051 | printf "}\n" |
| 2052 | printf "\n" |
| 2053 | printf "void\n" |
| 2054 | printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n" |
| 2055 | printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n" |
| 2056 | printf "{\n" |
| 2057 | printf " gdbarch->${function} = ${function};\n" |
| 2058 | printf "}\n" |
| 2059 | elif class_is_info_p |
| 2060 | then |
| 2061 | printf "\n" |
| 2062 | printf "${returntype}\n" |
| 2063 | printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" |
| 2064 | printf "{\n" |
| 2065 | printf " gdb_assert (gdbarch != NULL);\n" |
| 2066 | printf " if (gdbarch_debug >= 2)\n" |
| 2067 | printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" |
| 2068 | printf " return gdbarch->${function};\n" |
| 2069 | printf "}\n" |
| 2070 | fi |
| 2071 | done |
| 2072 | |
| 2073 | # All the trailing guff |
| 2074 | cat <<EOF |
| 2075 | |
| 2076 | |
| 2077 | /* Keep a registry of per-architecture data-pointers required by GDB |
| 2078 | modules. */ |
| 2079 | |
| 2080 | struct gdbarch_data |
| 2081 | { |
| 2082 | unsigned index; |
| 2083 | int init_p; |
| 2084 | gdbarch_data_pre_init_ftype *pre_init; |
| 2085 | gdbarch_data_post_init_ftype *post_init; |
| 2086 | }; |
| 2087 | |
| 2088 | struct gdbarch_data_registration |
| 2089 | { |
| 2090 | struct gdbarch_data *data; |
| 2091 | struct gdbarch_data_registration *next; |
| 2092 | }; |
| 2093 | |
| 2094 | struct gdbarch_data_registry |
| 2095 | { |
| 2096 | unsigned nr; |
| 2097 | struct gdbarch_data_registration *registrations; |
| 2098 | }; |
| 2099 | |
| 2100 | struct gdbarch_data_registry gdbarch_data_registry = |
| 2101 | { |
| 2102 | 0, NULL, |
| 2103 | }; |
| 2104 | |
| 2105 | static struct gdbarch_data * |
| 2106 | gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init, |
| 2107 | gdbarch_data_post_init_ftype *post_init) |
| 2108 | { |
| 2109 | struct gdbarch_data_registration **curr; |
| 2110 | |
| 2111 | /* Append the new registration. */ |
| 2112 | for (curr = &gdbarch_data_registry.registrations; |
| 2113 | (*curr) != NULL; |
| 2114 | curr = &(*curr)->next); |
| 2115 | (*curr) = XNEW (struct gdbarch_data_registration); |
| 2116 | (*curr)->next = NULL; |
| 2117 | (*curr)->data = XNEW (struct gdbarch_data); |
| 2118 | (*curr)->data->index = gdbarch_data_registry.nr++; |
| 2119 | (*curr)->data->pre_init = pre_init; |
| 2120 | (*curr)->data->post_init = post_init; |
| 2121 | (*curr)->data->init_p = 1; |
| 2122 | return (*curr)->data; |
| 2123 | } |
| 2124 | |
| 2125 | struct gdbarch_data * |
| 2126 | gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init) |
| 2127 | { |
| 2128 | return gdbarch_data_register (pre_init, NULL); |
| 2129 | } |
| 2130 | |
| 2131 | struct gdbarch_data * |
| 2132 | gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init) |
| 2133 | { |
| 2134 | return gdbarch_data_register (NULL, post_init); |
| 2135 | } |
| 2136 | |
| 2137 | /* Create/delete the gdbarch data vector. */ |
| 2138 | |
| 2139 | static void |
| 2140 | alloc_gdbarch_data (struct gdbarch *gdbarch) |
| 2141 | { |
| 2142 | gdb_assert (gdbarch->data == NULL); |
| 2143 | gdbarch->nr_data = gdbarch_data_registry.nr; |
| 2144 | gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *); |
| 2145 | } |
| 2146 | |
| 2147 | /* Initialize the current value of the specified per-architecture |
| 2148 | data-pointer. */ |
| 2149 | |
| 2150 | void |
| 2151 | deprecated_set_gdbarch_data (struct gdbarch *gdbarch, |
| 2152 | struct gdbarch_data *data, |
| 2153 | void *pointer) |
| 2154 | { |
| 2155 | gdb_assert (data->index < gdbarch->nr_data); |
| 2156 | gdb_assert (gdbarch->data[data->index] == NULL); |
| 2157 | gdb_assert (data->pre_init == NULL); |
| 2158 | gdbarch->data[data->index] = pointer; |
| 2159 | } |
| 2160 | |
| 2161 | /* Return the current value of the specified per-architecture |
| 2162 | data-pointer. */ |
| 2163 | |
| 2164 | void * |
| 2165 | gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data) |
| 2166 | { |
| 2167 | gdb_assert (data->index < gdbarch->nr_data); |
| 2168 | if (gdbarch->data[data->index] == NULL) |
| 2169 | { |
| 2170 | /* The data-pointer isn't initialized, call init() to get a |
| 2171 | value. */ |
| 2172 | if (data->pre_init != NULL) |
| 2173 | /* Mid architecture creation: pass just the obstack, and not |
| 2174 | the entire architecture, as that way it isn't possible for |
| 2175 | pre-init code to refer to undefined architecture |
| 2176 | fields. */ |
| 2177 | gdbarch->data[data->index] = data->pre_init (gdbarch->obstack); |
| 2178 | else if (gdbarch->initialized_p |
| 2179 | && data->post_init != NULL) |
| 2180 | /* Post architecture creation: pass the entire architecture |
| 2181 | (as all fields are valid), but be careful to also detect |
| 2182 | recursive references. */ |
| 2183 | { |
| 2184 | gdb_assert (data->init_p); |
| 2185 | data->init_p = 0; |
| 2186 | gdbarch->data[data->index] = data->post_init (gdbarch); |
| 2187 | data->init_p = 1; |
| 2188 | } |
| 2189 | else |
| 2190 | /* The architecture initialization hasn't completed - punt - |
| 2191 | hope that the caller knows what they are doing. Once |
| 2192 | deprecated_set_gdbarch_data has been initialized, this can be |
| 2193 | changed to an internal error. */ |
| 2194 | return NULL; |
| 2195 | gdb_assert (gdbarch->data[data->index] != NULL); |
| 2196 | } |
| 2197 | return gdbarch->data[data->index]; |
| 2198 | } |
| 2199 | |
| 2200 | |
| 2201 | /* Keep a registry of the architectures known by GDB. */ |
| 2202 | |
| 2203 | struct gdbarch_registration |
| 2204 | { |
| 2205 | enum bfd_architecture bfd_architecture; |
| 2206 | gdbarch_init_ftype *init; |
| 2207 | gdbarch_dump_tdep_ftype *dump_tdep; |
| 2208 | struct gdbarch_list *arches; |
| 2209 | struct gdbarch_registration *next; |
| 2210 | }; |
| 2211 | |
| 2212 | static struct gdbarch_registration *gdbarch_registry = NULL; |
| 2213 | |
| 2214 | static void |
| 2215 | append_name (const char ***buf, int *nr, const char *name) |
| 2216 | { |
| 2217 | *buf = XRESIZEVEC (const char *, *buf, *nr + 1); |
| 2218 | (*buf)[*nr] = name; |
| 2219 | *nr += 1; |
| 2220 | } |
| 2221 | |
| 2222 | const char ** |
| 2223 | gdbarch_printable_names (void) |
| 2224 | { |
| 2225 | /* Accumulate a list of names based on the registed list of |
| 2226 | architectures. */ |
| 2227 | int nr_arches = 0; |
| 2228 | const char **arches = NULL; |
| 2229 | struct gdbarch_registration *rego; |
| 2230 | |
| 2231 | for (rego = gdbarch_registry; |
| 2232 | rego != NULL; |
| 2233 | rego = rego->next) |
| 2234 | { |
| 2235 | const struct bfd_arch_info *ap; |
| 2236 | ap = bfd_lookup_arch (rego->bfd_architecture, 0); |
| 2237 | if (ap == NULL) |
| 2238 | internal_error (__FILE__, __LINE__, |
| 2239 | _("gdbarch_architecture_names: multi-arch unknown")); |
| 2240 | do |
| 2241 | { |
| 2242 | append_name (&arches, &nr_arches, ap->printable_name); |
| 2243 | ap = ap->next; |
| 2244 | } |
| 2245 | while (ap != NULL); |
| 2246 | } |
| 2247 | append_name (&arches, &nr_arches, NULL); |
| 2248 | return arches; |
| 2249 | } |
| 2250 | |
| 2251 | |
| 2252 | void |
| 2253 | gdbarch_register (enum bfd_architecture bfd_architecture, |
| 2254 | gdbarch_init_ftype *init, |
| 2255 | gdbarch_dump_tdep_ftype *dump_tdep) |
| 2256 | { |
| 2257 | struct gdbarch_registration **curr; |
| 2258 | const struct bfd_arch_info *bfd_arch_info; |
| 2259 | |
| 2260 | /* Check that BFD recognizes this architecture */ |
| 2261 | bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0); |
| 2262 | if (bfd_arch_info == NULL) |
| 2263 | { |
| 2264 | internal_error (__FILE__, __LINE__, |
| 2265 | _("gdbarch: Attempt to register " |
| 2266 | "unknown architecture (%d)"), |
| 2267 | bfd_architecture); |
| 2268 | } |
| 2269 | /* Check that we haven't seen this architecture before. */ |
| 2270 | for (curr = &gdbarch_registry; |
| 2271 | (*curr) != NULL; |
| 2272 | curr = &(*curr)->next) |
| 2273 | { |
| 2274 | if (bfd_architecture == (*curr)->bfd_architecture) |
| 2275 | internal_error (__FILE__, __LINE__, |
| 2276 | _("gdbarch: Duplicate registration " |
| 2277 | "of architecture (%s)"), |
| 2278 | bfd_arch_info->printable_name); |
| 2279 | } |
| 2280 | /* log it */ |
| 2281 | if (gdbarch_debug) |
| 2282 | fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n", |
| 2283 | bfd_arch_info->printable_name, |
| 2284 | host_address_to_string (init)); |
| 2285 | /* Append it */ |
| 2286 | (*curr) = XNEW (struct gdbarch_registration); |
| 2287 | (*curr)->bfd_architecture = bfd_architecture; |
| 2288 | (*curr)->init = init; |
| 2289 | (*curr)->dump_tdep = dump_tdep; |
| 2290 | (*curr)->arches = NULL; |
| 2291 | (*curr)->next = NULL; |
| 2292 | } |
| 2293 | |
| 2294 | void |
| 2295 | register_gdbarch_init (enum bfd_architecture bfd_architecture, |
| 2296 | gdbarch_init_ftype *init) |
| 2297 | { |
| 2298 | gdbarch_register (bfd_architecture, init, NULL); |
| 2299 | } |
| 2300 | |
| 2301 | |
| 2302 | /* Look for an architecture using gdbarch_info. */ |
| 2303 | |
| 2304 | struct gdbarch_list * |
| 2305 | gdbarch_list_lookup_by_info (struct gdbarch_list *arches, |
| 2306 | const struct gdbarch_info *info) |
| 2307 | { |
| 2308 | for (; arches != NULL; arches = arches->next) |
| 2309 | { |
| 2310 | if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info) |
| 2311 | continue; |
| 2312 | if (info->byte_order != arches->gdbarch->byte_order) |
| 2313 | continue; |
| 2314 | if (info->osabi != arches->gdbarch->osabi) |
| 2315 | continue; |
| 2316 | if (info->target_desc != arches->gdbarch->target_desc) |
| 2317 | continue; |
| 2318 | return arches; |
| 2319 | } |
| 2320 | return NULL; |
| 2321 | } |
| 2322 | |
| 2323 | |
| 2324 | /* Find an architecture that matches the specified INFO. Create a new |
| 2325 | architecture if needed. Return that new architecture. */ |
| 2326 | |
| 2327 | struct gdbarch * |
| 2328 | gdbarch_find_by_info (struct gdbarch_info info) |
| 2329 | { |
| 2330 | struct gdbarch *new_gdbarch; |
| 2331 | struct gdbarch_registration *rego; |
| 2332 | |
| 2333 | /* Fill in missing parts of the INFO struct using a number of |
| 2334 | sources: "set ..."; INFOabfd supplied; and the global |
| 2335 | defaults. */ |
| 2336 | gdbarch_info_fill (&info); |
| 2337 | |
| 2338 | /* Must have found some sort of architecture. */ |
| 2339 | gdb_assert (info.bfd_arch_info != NULL); |
| 2340 | |
| 2341 | if (gdbarch_debug) |
| 2342 | { |
| 2343 | fprintf_unfiltered (gdb_stdlog, |
| 2344 | "gdbarch_find_by_info: info.bfd_arch_info %s\n", |
| 2345 | (info.bfd_arch_info != NULL |
| 2346 | ? info.bfd_arch_info->printable_name |
| 2347 | : "(null)")); |
| 2348 | fprintf_unfiltered (gdb_stdlog, |
| 2349 | "gdbarch_find_by_info: info.byte_order %d (%s)\n", |
| 2350 | info.byte_order, |
| 2351 | (info.byte_order == BFD_ENDIAN_BIG ? "big" |
| 2352 | : info.byte_order == BFD_ENDIAN_LITTLE ? "little" |
| 2353 | : "default")); |
| 2354 | fprintf_unfiltered (gdb_stdlog, |
| 2355 | "gdbarch_find_by_info: info.osabi %d (%s)\n", |
| 2356 | info.osabi, gdbarch_osabi_name (info.osabi)); |
| 2357 | fprintf_unfiltered (gdb_stdlog, |
| 2358 | "gdbarch_find_by_info: info.abfd %s\n", |
| 2359 | host_address_to_string (info.abfd)); |
| 2360 | fprintf_unfiltered (gdb_stdlog, |
| 2361 | "gdbarch_find_by_info: info.tdep_info %s\n", |
| 2362 | host_address_to_string (info.tdep_info)); |
| 2363 | } |
| 2364 | |
| 2365 | /* Find the tdep code that knows about this architecture. */ |
| 2366 | for (rego = gdbarch_registry; |
| 2367 | rego != NULL; |
| 2368 | rego = rego->next) |
| 2369 | if (rego->bfd_architecture == info.bfd_arch_info->arch) |
| 2370 | break; |
| 2371 | if (rego == NULL) |
| 2372 | { |
| 2373 | if (gdbarch_debug) |
| 2374 | fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: " |
| 2375 | "No matching architecture\n"); |
| 2376 | return 0; |
| 2377 | } |
| 2378 | |
| 2379 | /* Ask the tdep code for an architecture that matches "info". */ |
| 2380 | new_gdbarch = rego->init (info, rego->arches); |
| 2381 | |
| 2382 | /* Did the tdep code like it? No. Reject the change and revert to |
| 2383 | the old architecture. */ |
| 2384 | if (new_gdbarch == NULL) |
| 2385 | { |
| 2386 | if (gdbarch_debug) |
| 2387 | fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: " |
| 2388 | "Target rejected architecture\n"); |
| 2389 | return NULL; |
| 2390 | } |
| 2391 | |
| 2392 | /* Is this a pre-existing architecture (as determined by already |
| 2393 | being initialized)? Move it to the front of the architecture |
| 2394 | list (keeping the list sorted Most Recently Used). */ |
| 2395 | if (new_gdbarch->initialized_p) |
| 2396 | { |
| 2397 | struct gdbarch_list **list; |
| 2398 | struct gdbarch_list *self; |
| 2399 | if (gdbarch_debug) |
| 2400 | fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: " |
| 2401 | "Previous architecture %s (%s) selected\n", |
| 2402 | host_address_to_string (new_gdbarch), |
| 2403 | new_gdbarch->bfd_arch_info->printable_name); |
| 2404 | /* Find the existing arch in the list. */ |
| 2405 | for (list = ®o->arches; |
| 2406 | (*list) != NULL && (*list)->gdbarch != new_gdbarch; |
| 2407 | list = &(*list)->next); |
| 2408 | /* It had better be in the list of architectures. */ |
| 2409 | gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch); |
| 2410 | /* Unlink SELF. */ |
| 2411 | self = (*list); |
| 2412 | (*list) = self->next; |
| 2413 | /* Insert SELF at the front. */ |
| 2414 | self->next = rego->arches; |
| 2415 | rego->arches = self; |
| 2416 | /* Return it. */ |
| 2417 | return new_gdbarch; |
| 2418 | } |
| 2419 | |
| 2420 | /* It's a new architecture. */ |
| 2421 | if (gdbarch_debug) |
| 2422 | fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: " |
| 2423 | "New architecture %s (%s) selected\n", |
| 2424 | host_address_to_string (new_gdbarch), |
| 2425 | new_gdbarch->bfd_arch_info->printable_name); |
| 2426 | |
| 2427 | /* Insert the new architecture into the front of the architecture |
| 2428 | list (keep the list sorted Most Recently Used). */ |
| 2429 | { |
| 2430 | struct gdbarch_list *self = XNEW (struct gdbarch_list); |
| 2431 | self->next = rego->arches; |
| 2432 | self->gdbarch = new_gdbarch; |
| 2433 | rego->arches = self; |
| 2434 | } |
| 2435 | |
| 2436 | /* Check that the newly installed architecture is valid. Plug in |
| 2437 | any post init values. */ |
| 2438 | new_gdbarch->dump_tdep = rego->dump_tdep; |
| 2439 | verify_gdbarch (new_gdbarch); |
| 2440 | new_gdbarch->initialized_p = 1; |
| 2441 | |
| 2442 | if (gdbarch_debug) |
| 2443 | gdbarch_dump (new_gdbarch, gdb_stdlog); |
| 2444 | |
| 2445 | return new_gdbarch; |
| 2446 | } |
| 2447 | |
| 2448 | /* Make the specified architecture current. */ |
| 2449 | |
| 2450 | void |
| 2451 | set_target_gdbarch (struct gdbarch *new_gdbarch) |
| 2452 | { |
| 2453 | gdb_assert (new_gdbarch != NULL); |
| 2454 | gdb_assert (new_gdbarch->initialized_p); |
| 2455 | current_inferior ()->gdbarch = new_gdbarch; |
| 2456 | observer_notify_architecture_changed (new_gdbarch); |
| 2457 | registers_changed (); |
| 2458 | } |
| 2459 | |
| 2460 | /* Return the current inferior's arch. */ |
| 2461 | |
| 2462 | struct gdbarch * |
| 2463 | target_gdbarch (void) |
| 2464 | { |
| 2465 | return current_inferior ()->gdbarch; |
| 2466 | } |
| 2467 | |
| 2468 | extern void _initialize_gdbarch (void); |
| 2469 | |
| 2470 | void |
| 2471 | _initialize_gdbarch (void) |
| 2472 | { |
| 2473 | add_setshow_zuinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\ |
| 2474 | Set architecture debugging."), _("\\ |
| 2475 | Show architecture debugging."), _("\\ |
| 2476 | When non-zero, architecture debugging is enabled."), |
| 2477 | NULL, |
| 2478 | show_gdbarch_debug, |
| 2479 | &setdebuglist, &showdebuglist); |
| 2480 | } |
| 2481 | EOF |
| 2482 | |
| 2483 | # close things off |
| 2484 | exec 1>&2 |
| 2485 | #../move-if-change new-gdbarch.c gdbarch.c |
| 2486 | compare_new gdbarch.c |