| 1 | #!/bin/sh -u |
| 2 | |
| 3 | # Architecture commands for GDB, the GNU debugger. |
| 4 | # |
| 5 | # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
| 6 | # Free Software Foundation, Inc. |
| 7 | # |
| 8 | # This file is part of GDB. |
| 9 | # |
| 10 | # This program is free software; you can redistribute it and/or modify |
| 11 | # it under the terms of the GNU General Public License as published by |
| 12 | # the Free Software Foundation; either version 2 of the License, or |
| 13 | # (at your option) any later version. |
| 14 | # |
| 15 | # This program is distributed in the hope that it will be useful, |
| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | # GNU General Public License for more details. |
| 19 | # |
| 20 | # You should have received a copy of the GNU General Public License |
| 21 | # along with this program; if not, write to the Free Software |
| 22 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 23 | # Boston, MA 02110-1301, USA. |
| 24 | |
| 25 | # Make certain that the script is not running in an internationalized |
| 26 | # environment. |
| 27 | LANG=c ; export LANG |
| 28 | LC_ALL=c ; export LC_ALL |
| 29 | |
| 30 | |
| 31 | compare_new () |
| 32 | { |
| 33 | file=$1 |
| 34 | if test ! -r ${file} |
| 35 | then |
| 36 | echo "${file} missing? cp new-${file} ${file}" 1>&2 |
| 37 | elif diff -u ${file} new-${file} |
| 38 | then |
| 39 | echo "${file} unchanged" 1>&2 |
| 40 | else |
| 41 | echo "${file} has changed? cp new-${file} ${file}" 1>&2 |
| 42 | fi |
| 43 | } |
| 44 | |
| 45 | |
| 46 | # Format of the input table |
| 47 | read="class macro returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol" |
| 48 | |
| 49 | do_read () |
| 50 | { |
| 51 | comment="" |
| 52 | class="" |
| 53 | while read line |
| 54 | do |
| 55 | if test "${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 $$ |
| 82 | exit 1 |
| 83 | fi |
| 84 | |
| 85 | # .... and then going back through each field and strip out those |
| 86 | # that ended up with just that space character. |
| 87 | for r in ${read} |
| 88 | do |
| 89 | if eval test \"\${${r}}\" = \"\ \" |
| 90 | then |
| 91 | eval ${r}="" |
| 92 | fi |
| 93 | done |
| 94 | |
| 95 | FUNCTION=`echo ${function} | tr '[a-z]' '[A-Z]'` |
| 96 | if test "x${macro}" = "x=" |
| 97 | then |
| 98 | # Provide a UCASE version of function (for when there isn't MACRO) |
| 99 | macro="${FUNCTION}" |
| 100 | elif test "${macro}" = "${FUNCTION}" |
| 101 | then |
| 102 | echo "${function}: Specify = for macro field" 1>&2 |
| 103 | kill $$ |
| 104 | exit 1 |
| 105 | fi |
| 106 | |
| 107 | # Check that macro definition wasn't supplied for multi-arch |
| 108 | case "${class}" in |
| 109 | [mM] ) |
| 110 | if test "${macro}" != "" |
| 111 | then |
| 112 | echo "Error: Function ${function} multi-arch yet macro ${macro} supplied" 1>&2 |
| 113 | kill $$ |
| 114 | exit 1 |
| 115 | fi |
| 116 | esac |
| 117 | |
| 118 | case "${class}" in |
| 119 | m ) staticdefault="${predefault}" ;; |
| 120 | M ) staticdefault="0" ;; |
| 121 | * ) test "${staticdefault}" || staticdefault=0 ;; |
| 122 | esac |
| 123 | |
| 124 | case "${class}" in |
| 125 | F | V | M ) |
| 126 | case "${invalid_p}" in |
| 127 | "" ) |
| 128 | if test -n "${predefault}" |
| 129 | then |
| 130 | #invalid_p="gdbarch->${function} == ${predefault}" |
| 131 | predicate="gdbarch->${function} != ${predefault}" |
| 132 | elif class_is_variable_p |
| 133 | then |
| 134 | predicate="gdbarch->${function} != 0" |
| 135 | elif class_is_function_p |
| 136 | then |
| 137 | predicate="gdbarch->${function} != NULL" |
| 138 | fi |
| 139 | ;; |
| 140 | * ) |
| 141 | echo "Predicate function ${function} with invalid_p." 1>&2 |
| 142 | kill $$ |
| 143 | exit 1 |
| 144 | ;; |
| 145 | esac |
| 146 | esac |
| 147 | |
| 148 | # PREDEFAULT is a valid fallback definition of MEMBER when |
| 149 | # multi-arch is not enabled. This ensures that the |
| 150 | # default value, when multi-arch is the same as the |
| 151 | # default value when not multi-arch. POSTDEFAULT is |
| 152 | # always a valid definition of MEMBER as this again |
| 153 | # ensures consistency. |
| 154 | |
| 155 | if [ -n "${postdefault}" ] |
| 156 | then |
| 157 | fallbackdefault="${postdefault}" |
| 158 | elif [ -n "${predefault}" ] |
| 159 | then |
| 160 | fallbackdefault="${predefault}" |
| 161 | else |
| 162 | fallbackdefault="0" |
| 163 | fi |
| 164 | |
| 165 | #NOT YET: See gdbarch.log for basic verification of |
| 166 | # database |
| 167 | |
| 168 | break |
| 169 | fi |
| 170 | done |
| 171 | if [ -n "${class}" ] |
| 172 | then |
| 173 | true |
| 174 | else |
| 175 | false |
| 176 | fi |
| 177 | } |
| 178 | |
| 179 | |
| 180 | fallback_default_p () |
| 181 | { |
| 182 | [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \ |
| 183 | || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ] |
| 184 | } |
| 185 | |
| 186 | class_is_variable_p () |
| 187 | { |
| 188 | case "${class}" in |
| 189 | *v* | *V* ) true ;; |
| 190 | * ) false ;; |
| 191 | esac |
| 192 | } |
| 193 | |
| 194 | class_is_function_p () |
| 195 | { |
| 196 | case "${class}" in |
| 197 | *f* | *F* | *m* | *M* ) true ;; |
| 198 | * ) false ;; |
| 199 | esac |
| 200 | } |
| 201 | |
| 202 | class_is_multiarch_p () |
| 203 | { |
| 204 | case "${class}" in |
| 205 | *m* | *M* ) true ;; |
| 206 | * ) false ;; |
| 207 | esac |
| 208 | } |
| 209 | |
| 210 | class_is_predicate_p () |
| 211 | { |
| 212 | case "${class}" in |
| 213 | *F* | *V* | *M* ) true ;; |
| 214 | * ) false ;; |
| 215 | esac |
| 216 | } |
| 217 | |
| 218 | class_is_info_p () |
| 219 | { |
| 220 | case "${class}" in |
| 221 | *i* ) true ;; |
| 222 | * ) false ;; |
| 223 | esac |
| 224 | } |
| 225 | |
| 226 | |
| 227 | # dump out/verify the doco |
| 228 | for field in ${read} |
| 229 | do |
| 230 | case ${field} in |
| 231 | |
| 232 | class ) : ;; |
| 233 | |
| 234 | # # -> line disable |
| 235 | # f -> function |
| 236 | # hiding a function |
| 237 | # F -> function + predicate |
| 238 | # hiding a function + predicate to test function validity |
| 239 | # v -> variable |
| 240 | # hiding a variable |
| 241 | # V -> variable + predicate |
| 242 | # hiding a variable + predicate to test variables validity |
| 243 | # i -> set from info |
| 244 | # hiding something from the ``struct info'' object |
| 245 | # m -> multi-arch function |
| 246 | # hiding a multi-arch function (parameterised with the architecture) |
| 247 | # M -> multi-arch function + predicate |
| 248 | # hiding a multi-arch function + predicate to test function validity |
| 249 | |
| 250 | macro ) : ;; |
| 251 | |
| 252 | # The name of the legacy C macro by which this method can be |
| 253 | # accessed. If empty, no macro is defined. If "=", a macro |
| 254 | # formed from the upper-case function name is used. |
| 255 | |
| 256 | returntype ) : ;; |
| 257 | |
| 258 | # For functions, the return type; for variables, the data type |
| 259 | |
| 260 | function ) : ;; |
| 261 | |
| 262 | # For functions, the member function name; for variables, the |
| 263 | # variable name. Member function names are always prefixed with |
| 264 | # ``gdbarch_'' for name-space purity. |
| 265 | |
| 266 | formal ) : ;; |
| 267 | |
| 268 | # The formal argument list. It is assumed that the formal |
| 269 | # argument list includes the actual name of each list element. |
| 270 | # A function with no arguments shall have ``void'' as the |
| 271 | # formal argument list. |
| 272 | |
| 273 | actual ) : ;; |
| 274 | |
| 275 | # The list of actual arguments. The arguments specified shall |
| 276 | # match the FORMAL list given above. Functions with out |
| 277 | # arguments leave this blank. |
| 278 | |
| 279 | staticdefault ) : ;; |
| 280 | |
| 281 | # To help with the GDB startup a static gdbarch object is |
| 282 | # created. STATICDEFAULT is the value to insert into that |
| 283 | # static gdbarch object. Since this a static object only |
| 284 | # simple expressions can be used. |
| 285 | |
| 286 | # If STATICDEFAULT is empty, zero is used. |
| 287 | |
| 288 | predefault ) : ;; |
| 289 | |
| 290 | # An initial value to assign to MEMBER of the freshly |
| 291 | # malloc()ed gdbarch object. After initialization, the |
| 292 | # freshly malloc()ed object is passed to the target |
| 293 | # architecture code for further updates. |
| 294 | |
| 295 | # If PREDEFAULT is empty, zero is used. |
| 296 | |
| 297 | # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero |
| 298 | # INVALID_P are specified, PREDEFAULT will be used as the |
| 299 | # default for the non- multi-arch target. |
| 300 | |
| 301 | # A zero PREDEFAULT function will force the fallback to call |
| 302 | # internal_error(). |
| 303 | |
| 304 | # Variable declarations can refer to ``gdbarch'' which will |
| 305 | # contain the current architecture. Care should be taken. |
| 306 | |
| 307 | postdefault ) : ;; |
| 308 | |
| 309 | # A value to assign to MEMBER of the new gdbarch object should |
| 310 | # the target architecture code fail to change the PREDEFAULT |
| 311 | # value. |
| 312 | |
| 313 | # If POSTDEFAULT is empty, no post update is performed. |
| 314 | |
| 315 | # If both INVALID_P and POSTDEFAULT are non-empty then |
| 316 | # INVALID_P will be used to determine if MEMBER should be |
| 317 | # changed to POSTDEFAULT. |
| 318 | |
| 319 | # If a non-empty POSTDEFAULT and a zero INVALID_P are |
| 320 | # specified, POSTDEFAULT will be used as the default for the |
| 321 | # non- multi-arch target (regardless of the value of |
| 322 | # PREDEFAULT). |
| 323 | |
| 324 | # You cannot specify both a zero INVALID_P and a POSTDEFAULT. |
| 325 | |
| 326 | # Variable declarations can refer to ``current_gdbarch'' which |
| 327 | # will contain the current architecture. Care should be |
| 328 | # taken. |
| 329 | |
| 330 | invalid_p ) : ;; |
| 331 | |
| 332 | # A predicate equation that validates MEMBER. Non-zero is |
| 333 | # returned if the code creating the new architecture failed to |
| 334 | # initialize MEMBER or the initialized the member is invalid. |
| 335 | # If POSTDEFAULT is non-empty then MEMBER will be updated to |
| 336 | # that value. If POSTDEFAULT is empty then internal_error() |
| 337 | # is called. |
| 338 | |
| 339 | # If INVALID_P is empty, a check that MEMBER is no longer |
| 340 | # equal to PREDEFAULT is used. |
| 341 | |
| 342 | # The expression ``0'' disables the INVALID_P check making |
| 343 | # PREDEFAULT a legitimate value. |
| 344 | |
| 345 | # See also PREDEFAULT and POSTDEFAULT. |
| 346 | |
| 347 | print ) : ;; |
| 348 | |
| 349 | # An optional expression that convers MEMBER to a value |
| 350 | # suitable for formatting using %s. |
| 351 | |
| 352 | # If PRINT is empty, paddr_nz (for CORE_ADDR) or paddr_d |
| 353 | # (anything else) is used. |
| 354 | |
| 355 | garbage_at_eol ) : ;; |
| 356 | |
| 357 | # Catches stray fields. |
| 358 | |
| 359 | *) |
| 360 | echo "Bad field ${field}" |
| 361 | exit 1;; |
| 362 | esac |
| 363 | done |
| 364 | |
| 365 | |
| 366 | function_list () |
| 367 | { |
| 368 | # See below (DOCO) for description of each field |
| 369 | cat <<EOF |
| 370 | i::const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (current_gdbarch)->printable_name |
| 371 | # |
| 372 | i::int:byte_order:::BFD_ENDIAN_BIG |
| 373 | # |
| 374 | i::enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN |
| 375 | # |
| 376 | i::const struct target_desc *:target_desc:::::::paddr_d ((long) current_gdbarch->target_desc) |
| 377 | # Number of bits in a char or unsigned char for the target machine. |
| 378 | # Just like CHAR_BIT in <limits.h> but describes the target machine. |
| 379 | # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0: |
| 380 | # |
| 381 | # Number of bits in a short or unsigned short for the target machine. |
| 382 | v::int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0 |
| 383 | # Number of bits in an int or unsigned int for the target machine. |
| 384 | v::int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0 |
| 385 | # Number of bits in a long or unsigned long for the target machine. |
| 386 | v::int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0 |
| 387 | # Number of bits in a long long or unsigned long long for the target |
| 388 | # machine. |
| 389 | v::int:long_long_bit:::8 * sizeof (LONGEST):2*current_gdbarch->long_bit::0 |
| 390 | |
| 391 | # The ABI default bit-size and format for "float", "double", and "long |
| 392 | # double". These bit/format pairs should eventually be combined into |
| 393 | # a single object. For the moment, just initialize them as a pair. |
| 394 | # Each format describes both the big and little endian layouts (if |
| 395 | # useful). |
| 396 | |
| 397 | v::int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0 |
| 398 | v::const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (current_gdbarch->float_format) |
| 399 | v::int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0 |
| 400 | v::const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (current_gdbarch->double_format) |
| 401 | v::int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0 |
| 402 | v::const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (current_gdbarch->long_double_format) |
| 403 | |
| 404 | # For most targets, a pointer on the target and its representation as an |
| 405 | # address in GDB have the same size and "look the same". For such a |
| 406 | # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit |
| 407 | # / addr_bit will be set from it. |
| 408 | # |
| 409 | # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably |
| 410 | # also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer |
| 411 | # as well. |
| 412 | # |
| 413 | # ptr_bit is the size of a pointer on the target |
| 414 | v::int:ptr_bit:::8 * sizeof (void*):current_gdbarch->int_bit::0 |
| 415 | # addr_bit is the size of a target address as represented in gdb |
| 416 | v::int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (current_gdbarch): |
| 417 | # |
| 418 | # One if \`char' acts like \`signed char', zero if \`unsigned char'. |
| 419 | v::int:char_signed:::1:-1:1 |
| 420 | # |
| 421 | F::CORE_ADDR:read_pc:struct regcache *regcache:regcache |
| 422 | F::void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val |
| 423 | # Function for getting target's idea of a frame pointer. FIXME: GDB's |
| 424 | # whole scheme for dealing with "frames" and "frame pointers" needs a |
| 425 | # serious shakedown. |
| 426 | f::void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset:0:legacy_virtual_frame_pointer::0 |
| 427 | # |
| 428 | M::void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf |
| 429 | M::void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf |
| 430 | # |
| 431 | v::int:num_regs:::0:-1 |
| 432 | # This macro gives the number of pseudo-registers that live in the |
| 433 | # register namespace but do not get fetched or stored on the target. |
| 434 | # These pseudo-registers may be aliases for other registers, |
| 435 | # combinations of other registers, or they may be computed by GDB. |
| 436 | v::int:num_pseudo_regs:::0:0::0 |
| 437 | |
| 438 | # GDB's standard (or well known) register numbers. These can map onto |
| 439 | # a real register or a pseudo (computed) register or not be defined at |
| 440 | # all (-1). |
| 441 | # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. |
| 442 | v::int:sp_regnum:::-1:-1::0 |
| 443 | v::int:pc_regnum:::-1:-1::0 |
| 444 | v::int:ps_regnum:::-1:-1::0 |
| 445 | v::int:fp0_regnum:::0:-1::0 |
| 446 | # Convert stab register number (from \`r\' declaration) to a gdb REGNUM. |
| 447 | f::int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0 |
| 448 | # Provide a default mapping from a ecoff register number to a gdb REGNUM. |
| 449 | f::int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0 |
| 450 | # Provide a default mapping from a DWARF register number to a gdb REGNUM. |
| 451 | f::int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr::no_op_reg_to_regnum::0 |
| 452 | # Convert from an sdb register number to an internal gdb register number. |
| 453 | f::int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0 |
| 454 | f::int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0 |
| 455 | f::const char *:register_name:int regnr:regnr |
| 456 | |
| 457 | # Return the type of a register specified by the architecture. Only |
| 458 | # the register cache should call this function directly; others should |
| 459 | # use "register_type". |
| 460 | M::struct type *:register_type:int reg_nr:reg_nr |
| 461 | |
| 462 | # See gdbint.texinfo, and PUSH_DUMMY_CALL. |
| 463 | M::struct frame_id:unwind_dummy_id:struct frame_info *info:info |
| 464 | # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete |
| 465 | # deprecated_fp_regnum. |
| 466 | v::int:deprecated_fp_regnum:::-1:-1::0 |
| 467 | |
| 468 | # See gdbint.texinfo. See infcall.c. |
| 469 | 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 |
| 470 | v::int:call_dummy_location::::AT_ENTRY_POINT::0 |
| 471 | M::CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache:sp, funaddr, using_gcc, args, nargs, value_type, real_pc, bp_addr, regcache |
| 472 | |
| 473 | 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 |
| 474 | M::void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args |
| 475 | M::void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args |
| 476 | # MAP a GDB RAW register number onto a simulator register number. See |
| 477 | # also include/...-sim.h. |
| 478 | f::int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0 |
| 479 | f::int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0 |
| 480 | f::int:cannot_store_register:int regnum:regnum::cannot_register_not::0 |
| 481 | # setjmp/longjmp support. |
| 482 | F::int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc |
| 483 | # |
| 484 | v::int:believe_pcc_promotion::::::: |
| 485 | # |
| 486 | f::int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0 |
| 487 | f::void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0 |
| 488 | f::void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0 |
| 489 | # Construct a value representing the contents of register REGNUM in |
| 490 | # frame FRAME, interpreted as type TYPE. The routine needs to |
| 491 | # allocate and return a struct value with all value attributes |
| 492 | # (but not the value contents) filled in. |
| 493 | f::struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0 |
| 494 | # |
| 495 | f::CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0 |
| 496 | f::void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0 |
| 497 | M::CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf |
| 498 | |
| 499 | # It has been suggested that this, well actually its predecessor, |
| 500 | # should take the type/value of the function to be called and not the |
| 501 | # return type. This is left as an exercise for the reader. |
| 502 | |
| 503 | # NOTE: cagney/2004-06-13: The function stack.c:return_command uses |
| 504 | # the predicate with default hack to avoid calling store_return_value |
| 505 | # (via legacy_return_value), when a small struct is involved. |
| 506 | |
| 507 | M::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:valtype, regcache, readbuf, writebuf::legacy_return_value |
| 508 | |
| 509 | # The deprecated methods extract_return_value, store_return_value, |
| 510 | # DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and |
| 511 | # deprecated_use_struct_convention have all been folded into |
| 512 | # RETURN_VALUE. |
| 513 | |
| 514 | f::void:extract_return_value:struct type *type, struct regcache *regcache, gdb_byte *valbuf:type, regcache, valbuf:0 |
| 515 | f::void:store_return_value:struct type *type, struct regcache *regcache, const gdb_byte *valbuf:type, regcache, valbuf:0 |
| 516 | f::int:deprecated_use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type::generic_use_struct_convention::0 |
| 517 | |
| 518 | f::CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0 |
| 519 | f::int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0 |
| 520 | f::const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0: |
| 521 | M::CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr |
| 522 | f::int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0 |
| 523 | f::int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0 |
| 524 | v::CORE_ADDR:decr_pc_after_break:::0:::0 |
| 525 | |
| 526 | # A function can be addressed by either it's "pointer" (possibly a |
| 527 | # descriptor address) or "entry point" (first executable instruction). |
| 528 | # The method "convert_from_func_ptr_addr" converting the former to the |
| 529 | # latter. gdbarch_deprecated_function_start_offset is being used to implement |
| 530 | # a simplified subset of that functionality - the function's address |
| 531 | # corresponds to the "function pointer" and the function's start |
| 532 | # corresponds to the "function entry point" - and hence is redundant. |
| 533 | |
| 534 | v::CORE_ADDR:deprecated_function_start_offset:::0:::0 |
| 535 | |
| 536 | # Return the remote protocol register number associated with this |
| 537 | # register. Normally the identity mapping. |
| 538 | m::int:remote_register_number:int regno:regno::default_remote_register_number::0 |
| 539 | |
| 540 | # Fetch the target specific address used to represent a load module. |
| 541 | F::CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile |
| 542 | # |
| 543 | v::CORE_ADDR:frame_args_skip:::0:::0 |
| 544 | M::CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame |
| 545 | M::CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame |
| 546 | # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame |
| 547 | # frame-base. Enable frame-base before frame-unwind. |
| 548 | F::int:frame_num_args:struct frame_info *frame:frame |
| 549 | # |
| 550 | M::CORE_ADDR:frame_align:CORE_ADDR address:address |
| 551 | # deprecated_reg_struct_has_addr has been replaced by |
| 552 | # stabs_argument_has_addr. |
| 553 | F::int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type |
| 554 | m::int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0 |
| 555 | v::int:frame_red_zone_size |
| 556 | # |
| 557 | m::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0 |
| 558 | # On some machines there are bits in addresses which are not really |
| 559 | # part of the address, but are used by the kernel, the hardware, etc. |
| 560 | # for special purposes. gdbarch_addr_bits_remove takes out any such bits so |
| 561 | # we get a "real" address such as one would find in a symbol table. |
| 562 | # This is used only for addresses of instructions, and even then I'm |
| 563 | # not sure it's used in all contexts. It exists to deal with there |
| 564 | # being a few stray bits in the PC which would mislead us, not as some |
| 565 | # sort of generic thing to handle alignment or segmentation (it's |
| 566 | # possible it should be in TARGET_READ_PC instead). |
| 567 | f::CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0 |
| 568 | # It is not at all clear why gdbarch_smash_text_address is not folded into |
| 569 | # gdbarch_addr_bits_remove. |
| 570 | f::CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0 |
| 571 | |
| 572 | # FIXME/cagney/2001-01-18: This should be split in two. A target method that |
| 573 | # indicates if the target needs software single step. An ISA method to |
| 574 | # implement it. |
| 575 | # |
| 576 | # FIXME/cagney/2001-01-18: This should be replaced with something that inserts |
| 577 | # breakpoints using the breakpoint system instead of blatting memory directly |
| 578 | # (as with rs6000). |
| 579 | # |
| 580 | # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the |
| 581 | # target can single step. If not, then implement single step using breakpoints. |
| 582 | # |
| 583 | # A return value of 1 means that the software_single_step breakpoints |
| 584 | # were inserted; 0 means they were not. |
| 585 | F::int:software_single_step:struct frame_info *frame:frame |
| 586 | |
| 587 | # Return non-zero if the processor is executing a delay slot and a |
| 588 | # further single-step is needed before the instruction finishes. |
| 589 | M::int:single_step_through_delay:struct frame_info *frame:frame |
| 590 | # FIXME: cagney/2003-08-28: Need to find a better way of selecting the |
| 591 | # disassembler. Perhaps objdump can handle it? |
| 592 | f::int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0: |
| 593 | f::CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0 |
| 594 | |
| 595 | |
| 596 | # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER |
| 597 | # evaluates non-zero, this is the address where the debugger will place |
| 598 | # a step-resume breakpoint to get us past the dynamic linker. |
| 599 | m::CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0 |
| 600 | # Some systems also have trampoline code for returning from shared libs. |
| 601 | f::int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0 |
| 602 | |
| 603 | # A target might have problems with watchpoints as soon as the stack |
| 604 | # frame of the current function has been destroyed. This mostly happens |
| 605 | # as the first action in a funtion's epilogue. in_function_epilogue_p() |
| 606 | # is defined to return a non-zero value if either the given addr is one |
| 607 | # instruction after the stack destroying instruction up to the trailing |
| 608 | # return instruction or if we can figure out that the stack frame has |
| 609 | # already been invalidated regardless of the value of addr. Targets |
| 610 | # which don't suffer from that problem could just let this functionality |
| 611 | # untouched. |
| 612 | m::int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0 |
| 613 | # Given a vector of command-line arguments, return a newly allocated |
| 614 | # string which, when passed to the create_inferior function, will be |
| 615 | # parsed (on Unix systems, by the shell) to yield the same vector. |
| 616 | # This function should call error() if the argument vector is not |
| 617 | # representable for this target or if this target does not support |
| 618 | # command-line arguments. |
| 619 | # ARGC is the number of elements in the vector. |
| 620 | # ARGV is an array of strings, one per argument. |
| 621 | m::char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0 |
| 622 | f::void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0 |
| 623 | f::void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0 |
| 624 | v::const char *:name_of_malloc:::"malloc":"malloc"::0:current_gdbarch->name_of_malloc |
| 625 | v::int:cannot_step_breakpoint:::0:0::0 |
| 626 | v::int:have_nonsteppable_watchpoint:::0:0::0 |
| 627 | F::int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class |
| 628 | M::const char *:address_class_type_flags_to_name:int type_flags:type_flags |
| 629 | M::int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr |
| 630 | # Is a register in a group |
| 631 | m::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0 |
| 632 | # Fetch the pointer to the ith function argument. |
| 633 | F::CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type |
| 634 | |
| 635 | # Return the appropriate register set for a core file section with |
| 636 | # name SECT_NAME and size SECT_SIZE. |
| 637 | M::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size |
| 638 | |
| 639 | # If the elements of C++ vtables are in-place function descriptors rather |
| 640 | # than normal function pointers (which may point to code or a descriptor), |
| 641 | # set this to one. |
| 642 | v::int:vtable_function_descriptors:::0:0::0 |
| 643 | |
| 644 | # Set if the least significant bit of the delta is used instead of the least |
| 645 | # significant bit of the pfn for pointers to virtual member functions. |
| 646 | v::int:vbit_in_delta:::0:0::0 |
| 647 | |
| 648 | # Advance PC to next instruction in order to skip a permanent breakpoint. |
| 649 | F::void:skip_permanent_breakpoint:struct regcache *regcache:regcache |
| 650 | |
| 651 | # Refresh overlay mapped state for section OSECT. |
| 652 | F::void:overlay_update:struct obj_section *osect:osect |
| 653 | EOF |
| 654 | } |
| 655 | |
| 656 | # |
| 657 | # The .log file |
| 658 | # |
| 659 | exec > new-gdbarch.log |
| 660 | function_list | while do_read |
| 661 | do |
| 662 | cat <<EOF |
| 663 | ${class} ${returntype} ${function} ($formal) |
| 664 | EOF |
| 665 | for r in ${read} |
| 666 | do |
| 667 | eval echo \"\ \ \ \ ${r}=\${${r}}\" |
| 668 | done |
| 669 | if class_is_predicate_p && fallback_default_p |
| 670 | then |
| 671 | echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2 |
| 672 | kill $$ |
| 673 | exit 1 |
| 674 | fi |
| 675 | if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ] |
| 676 | then |
| 677 | echo "Error: postdefault is useless when invalid_p=0" 1>&2 |
| 678 | kill $$ |
| 679 | exit 1 |
| 680 | fi |
| 681 | if class_is_multiarch_p |
| 682 | then |
| 683 | if class_is_predicate_p ; then : |
| 684 | elif test "x${predefault}" = "x" |
| 685 | then |
| 686 | echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2 |
| 687 | kill $$ |
| 688 | exit 1 |
| 689 | fi |
| 690 | fi |
| 691 | echo "" |
| 692 | done |
| 693 | |
| 694 | exec 1>&2 |
| 695 | compare_new gdbarch.log |
| 696 | |
| 697 | |
| 698 | copyright () |
| 699 | { |
| 700 | cat <<EOF |
| 701 | /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */ |
| 702 | |
| 703 | /* Dynamic architecture support for GDB, the GNU debugger. |
| 704 | |
| 705 | Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 |
| 706 | Free Software Foundation, Inc. |
| 707 | |
| 708 | This file is part of GDB. |
| 709 | |
| 710 | This program is free software; you can redistribute it and/or modify |
| 711 | it under the terms of the GNU General Public License as published by |
| 712 | the Free Software Foundation; either version 2 of the License, or |
| 713 | (at your option) any later version. |
| 714 | |
| 715 | This program is distributed in the hope that it will be useful, |
| 716 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 717 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 718 | GNU General Public License for more details. |
| 719 | |
| 720 | You should have received a copy of the GNU General Public License |
| 721 | along with this program; if not, write to the Free Software |
| 722 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 723 | Boston, MA 02110-1301, USA. */ |
| 724 | |
| 725 | /* This file was created with the aid of \`\`gdbarch.sh''. |
| 726 | |
| 727 | The Bourne shell script \`\`gdbarch.sh'' creates the files |
| 728 | \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them |
| 729 | against the existing \`\`gdbarch.[hc]''. Any differences found |
| 730 | being reported. |
| 731 | |
| 732 | If editing this file, please also run gdbarch.sh and merge any |
| 733 | changes into that script. Conversely, when making sweeping changes |
| 734 | to this file, modifying gdbarch.sh and using its output may prove |
| 735 | easier. */ |
| 736 | |
| 737 | EOF |
| 738 | } |
| 739 | |
| 740 | # |
| 741 | # The .h file |
| 742 | # |
| 743 | |
| 744 | exec > new-gdbarch.h |
| 745 | copyright |
| 746 | cat <<EOF |
| 747 | #ifndef GDBARCH_H |
| 748 | #define GDBARCH_H |
| 749 | |
| 750 | struct floatformat; |
| 751 | struct ui_file; |
| 752 | struct frame_info; |
| 753 | struct value; |
| 754 | struct objfile; |
| 755 | struct obj_section; |
| 756 | struct minimal_symbol; |
| 757 | struct regcache; |
| 758 | struct reggroup; |
| 759 | struct regset; |
| 760 | struct disassemble_info; |
| 761 | struct target_ops; |
| 762 | struct obstack; |
| 763 | struct bp_target_info; |
| 764 | struct target_desc; |
| 765 | |
| 766 | extern struct gdbarch *current_gdbarch; |
| 767 | EOF |
| 768 | |
| 769 | # function typedef's |
| 770 | printf "\n" |
| 771 | printf "\n" |
| 772 | printf "/* The following are pre-initialized by GDBARCH. */\n" |
| 773 | function_list | while do_read |
| 774 | do |
| 775 | if class_is_info_p |
| 776 | then |
| 777 | printf "\n" |
| 778 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" |
| 779 | printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n" |
| 780 | if test -n "${macro}" |
| 781 | then |
| 782 | printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n" |
| 783 | printf "#error \"Non multi-arch definition of ${macro}\"\n" |
| 784 | printf "#endif\n" |
| 785 | printf "#if !defined (${macro})\n" |
| 786 | printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n" |
| 787 | printf "#endif\n" |
| 788 | fi |
| 789 | fi |
| 790 | done |
| 791 | |
| 792 | # function typedef's |
| 793 | printf "\n" |
| 794 | printf "\n" |
| 795 | printf "/* The following are initialized by the target dependent code. */\n" |
| 796 | function_list | while do_read |
| 797 | do |
| 798 | if [ -n "${comment}" ] |
| 799 | then |
| 800 | echo "${comment}" | sed \ |
| 801 | -e '2 s,#,/*,' \ |
| 802 | -e '3,$ s,#, ,' \ |
| 803 | -e '$ s,$, */,' |
| 804 | fi |
| 805 | |
| 806 | if class_is_predicate_p |
| 807 | then |
| 808 | if test -n "${macro}" |
| 809 | then |
| 810 | printf "\n" |
| 811 | printf "#if defined (${macro})\n" |
| 812 | printf "/* Legacy for systems yet to multi-arch ${macro} */\n" |
| 813 | printf "#if !defined (${macro}_P)\n" |
| 814 | printf "#define ${macro}_P() (1)\n" |
| 815 | printf "#endif\n" |
| 816 | printf "#endif\n" |
| 817 | fi |
| 818 | printf "\n" |
| 819 | printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n" |
| 820 | if test -n "${macro}" |
| 821 | then |
| 822 | printf "#if !defined (GDB_TM_FILE) && defined (${macro}_P)\n" |
| 823 | printf "#error \"Non multi-arch definition of ${macro}\"\n" |
| 824 | printf "#endif\n" |
| 825 | printf "#if !defined (${macro}_P)\n" |
| 826 | printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n" |
| 827 | printf "#endif\n" |
| 828 | fi |
| 829 | fi |
| 830 | if class_is_variable_p |
| 831 | then |
| 832 | printf "\n" |
| 833 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" |
| 834 | printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n" |
| 835 | if test -n "${macro}" |
| 836 | then |
| 837 | printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n" |
| 838 | printf "#error \"Non multi-arch definition of ${macro}\"\n" |
| 839 | printf "#endif\n" |
| 840 | printf "#if !defined (${macro})\n" |
| 841 | printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n" |
| 842 | printf "#endif\n" |
| 843 | fi |
| 844 | fi |
| 845 | if class_is_function_p |
| 846 | then |
| 847 | printf "\n" |
| 848 | if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p |
| 849 | then |
| 850 | printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n" |
| 851 | elif class_is_multiarch_p |
| 852 | then |
| 853 | printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n" |
| 854 | else |
| 855 | printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n" |
| 856 | fi |
| 857 | if [ "x${formal}" = "xvoid" ] |
| 858 | then |
| 859 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" |
| 860 | else |
| 861 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n" |
| 862 | fi |
| 863 | printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n" |
| 864 | if test -n "${macro}" |
| 865 | then |
| 866 | printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n" |
| 867 | printf "#error \"Non multi-arch definition of ${macro}\"\n" |
| 868 | printf "#endif\n" |
| 869 | if [ "x${actual}" = "x" ] |
| 870 | then |
| 871 | d="#define ${macro}() (gdbarch_${function} (current_gdbarch))" |
| 872 | elif [ "x${actual}" = "x-" ] |
| 873 | then |
| 874 | d="#define ${macro} (gdbarch_${function} (current_gdbarch))" |
| 875 | else |
| 876 | d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))" |
| 877 | fi |
| 878 | printf "#if !defined (${macro})\n" |
| 879 | if [ "x${actual}" = "x" ] |
| 880 | then |
| 881 | printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n" |
| 882 | elif [ "x${actual}" = "x-" ] |
| 883 | then |
| 884 | printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n" |
| 885 | else |
| 886 | printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n" |
| 887 | fi |
| 888 | printf "#endif\n" |
| 889 | fi |
| 890 | fi |
| 891 | done |
| 892 | |
| 893 | # close it off |
| 894 | cat <<EOF |
| 895 | |
| 896 | extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch); |
| 897 | |
| 898 | |
| 899 | /* Mechanism for co-ordinating the selection of a specific |
| 900 | architecture. |
| 901 | |
| 902 | GDB targets (*-tdep.c) can register an interest in a specific |
| 903 | architecture. Other GDB components can register a need to maintain |
| 904 | per-architecture data. |
| 905 | |
| 906 | The mechanisms below ensures that there is only a loose connection |
| 907 | between the set-architecture command and the various GDB |
| 908 | components. Each component can independently register their need |
| 909 | to maintain architecture specific data with gdbarch. |
| 910 | |
| 911 | Pragmatics: |
| 912 | |
| 913 | Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It |
| 914 | didn't scale. |
| 915 | |
| 916 | The more traditional mega-struct containing architecture specific |
| 917 | data for all the various GDB components was also considered. Since |
| 918 | GDB is built from a variable number of (fairly independent) |
| 919 | components it was determined that the global aproach was not |
| 920 | applicable. */ |
| 921 | |
| 922 | |
| 923 | /* Register a new architectural family with GDB. |
| 924 | |
| 925 | Register support for the specified ARCHITECTURE with GDB. When |
| 926 | gdbarch determines that the specified architecture has been |
| 927 | selected, the corresponding INIT function is called. |
| 928 | |
| 929 | -- |
| 930 | |
| 931 | The INIT function takes two parameters: INFO which contains the |
| 932 | information available to gdbarch about the (possibly new) |
| 933 | architecture; ARCHES which is a list of the previously created |
| 934 | \`\`struct gdbarch'' for this architecture. |
| 935 | |
| 936 | The INFO parameter is, as far as possible, be pre-initialized with |
| 937 | information obtained from INFO.ABFD or the global defaults. |
| 938 | |
| 939 | The ARCHES parameter is a linked list (sorted most recently used) |
| 940 | of all the previously created architures for this architecture |
| 941 | family. The (possibly NULL) ARCHES->gdbarch can used to access |
| 942 | values from the previously selected architecture for this |
| 943 | architecture family. The global \`\`current_gdbarch'' shall not be |
| 944 | used. |
| 945 | |
| 946 | The INIT function shall return any of: NULL - indicating that it |
| 947 | doesn't recognize the selected architecture; an existing \`\`struct |
| 948 | gdbarch'' from the ARCHES list - indicating that the new |
| 949 | architecture is just a synonym for an earlier architecture (see |
| 950 | gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch'' |
| 951 | - that describes the selected architecture (see gdbarch_alloc()). |
| 952 | |
| 953 | The DUMP_TDEP function shall print out all target specific values. |
| 954 | Care should be taken to ensure that the function works in both the |
| 955 | multi-arch and non- multi-arch cases. */ |
| 956 | |
| 957 | struct gdbarch_list |
| 958 | { |
| 959 | struct gdbarch *gdbarch; |
| 960 | struct gdbarch_list *next; |
| 961 | }; |
| 962 | |
| 963 | struct gdbarch_info |
| 964 | { |
| 965 | /* Use default: NULL (ZERO). */ |
| 966 | const struct bfd_arch_info *bfd_arch_info; |
| 967 | |
| 968 | /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */ |
| 969 | int byte_order; |
| 970 | |
| 971 | /* Use default: NULL (ZERO). */ |
| 972 | bfd *abfd; |
| 973 | |
| 974 | /* Use default: NULL (ZERO). */ |
| 975 | struct gdbarch_tdep_info *tdep_info; |
| 976 | |
| 977 | /* Use default: GDB_OSABI_UNINITIALIZED (-1). */ |
| 978 | enum gdb_osabi osabi; |
| 979 | |
| 980 | /* Use default: NULL (ZERO). */ |
| 981 | const struct target_desc *target_desc; |
| 982 | }; |
| 983 | |
| 984 | typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches); |
| 985 | typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file); |
| 986 | |
| 987 | /* DEPRECATED - use gdbarch_register() */ |
| 988 | extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *); |
| 989 | |
| 990 | extern void gdbarch_register (enum bfd_architecture architecture, |
| 991 | gdbarch_init_ftype *, |
| 992 | gdbarch_dump_tdep_ftype *); |
| 993 | |
| 994 | |
| 995 | /* Return a freshly allocated, NULL terminated, array of the valid |
| 996 | architecture names. Since architectures are registered during the |
| 997 | _initialize phase this function only returns useful information |
| 998 | once initialization has been completed. */ |
| 999 | |
| 1000 | extern const char **gdbarch_printable_names (void); |
| 1001 | |
| 1002 | |
| 1003 | /* Helper function. Search the list of ARCHES for a GDBARCH that |
| 1004 | matches the information provided by INFO. */ |
| 1005 | |
| 1006 | extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info); |
| 1007 | |
| 1008 | |
| 1009 | /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform |
| 1010 | basic initialization using values obtained from the INFO and TDEP |
| 1011 | parameters. set_gdbarch_*() functions are called to complete the |
| 1012 | initialization of the object. */ |
| 1013 | |
| 1014 | extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep); |
| 1015 | |
| 1016 | |
| 1017 | /* Helper function. Free a partially-constructed \`\`struct gdbarch''. |
| 1018 | It is assumed that the caller freeds the \`\`struct |
| 1019 | gdbarch_tdep''. */ |
| 1020 | |
| 1021 | extern void gdbarch_free (struct gdbarch *); |
| 1022 | |
| 1023 | |
| 1024 | /* Helper function. Allocate memory from the \`\`struct gdbarch'' |
| 1025 | obstack. The memory is freed when the corresponding architecture |
| 1026 | is also freed. */ |
| 1027 | |
| 1028 | extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size); |
| 1029 | #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE))) |
| 1030 | #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE))) |
| 1031 | |
| 1032 | |
| 1033 | /* Helper function. Force an update of the current architecture. |
| 1034 | |
| 1035 | The actual architecture selected is determined by INFO, \`\`(gdb) set |
| 1036 | architecture'' et.al., the existing architecture and BFD's default |
| 1037 | architecture. INFO should be initialized to zero and then selected |
| 1038 | fields should be updated. |
| 1039 | |
| 1040 | Returns non-zero if the update succeeds */ |
| 1041 | |
| 1042 | extern int gdbarch_update_p (struct gdbarch_info info); |
| 1043 | |
| 1044 | |
| 1045 | /* Helper function. Find an architecture matching info. |
| 1046 | |
| 1047 | INFO should be initialized using gdbarch_info_init, relevant fields |
| 1048 | set, and then finished using gdbarch_info_fill. |
| 1049 | |
| 1050 | Returns the corresponding architecture, or NULL if no matching |
| 1051 | architecture was found. "current_gdbarch" is not updated. */ |
| 1052 | |
| 1053 | extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info); |
| 1054 | |
| 1055 | |
| 1056 | /* Helper function. Set the global "current_gdbarch" to "gdbarch". |
| 1057 | |
| 1058 | FIXME: kettenis/20031124: Of the functions that follow, only |
| 1059 | gdbarch_from_bfd is supposed to survive. The others will |
| 1060 | dissappear since in the future GDB will (hopefully) be truly |
| 1061 | multi-arch. However, for now we're still stuck with the concept of |
| 1062 | a single active architecture. */ |
| 1063 | |
| 1064 | extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch); |
| 1065 | |
| 1066 | |
| 1067 | /* Register per-architecture data-pointer. |
| 1068 | |
| 1069 | Reserve space for a per-architecture data-pointer. An identifier |
| 1070 | for the reserved data-pointer is returned. That identifer should |
| 1071 | be saved in a local static variable. |
| 1072 | |
| 1073 | Memory for the per-architecture data shall be allocated using |
| 1074 | gdbarch_obstack_zalloc. That memory will be deleted when the |
| 1075 | corresponding architecture object is deleted. |
| 1076 | |
| 1077 | When a previously created architecture is re-selected, the |
| 1078 | per-architecture data-pointer for that previous architecture is |
| 1079 | restored. INIT() is not re-called. |
| 1080 | |
| 1081 | Multiple registrarants for any architecture are allowed (and |
| 1082 | strongly encouraged). */ |
| 1083 | |
| 1084 | struct gdbarch_data; |
| 1085 | |
| 1086 | typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack); |
| 1087 | extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init); |
| 1088 | typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch); |
| 1089 | extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init); |
| 1090 | extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch, |
| 1091 | struct gdbarch_data *data, |
| 1092 | void *pointer); |
| 1093 | |
| 1094 | extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *); |
| 1095 | |
| 1096 | |
| 1097 | /* Set the dynamic target-system-dependent parameters (architecture, |
| 1098 | byte-order, ...) using information found in the BFD */ |
| 1099 | |
| 1100 | extern void set_gdbarch_from_file (bfd *); |
| 1101 | |
| 1102 | |
| 1103 | /* Initialize the current architecture to the "first" one we find on |
| 1104 | our list. */ |
| 1105 | |
| 1106 | extern void initialize_current_architecture (void); |
| 1107 | |
| 1108 | /* gdbarch trace variable */ |
| 1109 | extern int gdbarch_debug; |
| 1110 | |
| 1111 | extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file); |
| 1112 | |
| 1113 | #endif |
| 1114 | EOF |
| 1115 | exec 1>&2 |
| 1116 | #../move-if-change new-gdbarch.h gdbarch.h |
| 1117 | compare_new gdbarch.h |
| 1118 | |
| 1119 | |
| 1120 | # |
| 1121 | # C file |
| 1122 | # |
| 1123 | |
| 1124 | exec > new-gdbarch.c |
| 1125 | copyright |
| 1126 | cat <<EOF |
| 1127 | |
| 1128 | #include "defs.h" |
| 1129 | #include "arch-utils.h" |
| 1130 | |
| 1131 | #include "gdbcmd.h" |
| 1132 | #include "inferior.h" |
| 1133 | #include "symcat.h" |
| 1134 | |
| 1135 | #include "floatformat.h" |
| 1136 | |
| 1137 | #include "gdb_assert.h" |
| 1138 | #include "gdb_string.h" |
| 1139 | #include "gdb-events.h" |
| 1140 | #include "reggroups.h" |
| 1141 | #include "osabi.h" |
| 1142 | #include "gdb_obstack.h" |
| 1143 | |
| 1144 | /* Static function declarations */ |
| 1145 | |
| 1146 | static void alloc_gdbarch_data (struct gdbarch *); |
| 1147 | |
| 1148 | /* Non-zero if we want to trace architecture code. */ |
| 1149 | |
| 1150 | #ifndef GDBARCH_DEBUG |
| 1151 | #define GDBARCH_DEBUG 0 |
| 1152 | #endif |
| 1153 | int gdbarch_debug = GDBARCH_DEBUG; |
| 1154 | static void |
| 1155 | show_gdbarch_debug (struct ui_file *file, int from_tty, |
| 1156 | struct cmd_list_element *c, const char *value) |
| 1157 | { |
| 1158 | fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value); |
| 1159 | } |
| 1160 | |
| 1161 | static const char * |
| 1162 | pformat (const struct floatformat **format) |
| 1163 | { |
| 1164 | if (format == NULL) |
| 1165 | return "(null)"; |
| 1166 | else |
| 1167 | /* Just print out one of them - this is only for diagnostics. */ |
| 1168 | return format[0]->name; |
| 1169 | } |
| 1170 | |
| 1171 | EOF |
| 1172 | |
| 1173 | # gdbarch open the gdbarch object |
| 1174 | printf "\n" |
| 1175 | printf "/* Maintain the struct gdbarch object */\n" |
| 1176 | printf "\n" |
| 1177 | printf "struct gdbarch\n" |
| 1178 | printf "{\n" |
| 1179 | printf " /* Has this architecture been fully initialized? */\n" |
| 1180 | printf " int initialized_p;\n" |
| 1181 | printf "\n" |
| 1182 | printf " /* An obstack bound to the lifetime of the architecture. */\n" |
| 1183 | printf " struct obstack *obstack;\n" |
| 1184 | printf "\n" |
| 1185 | printf " /* basic architectural information */\n" |
| 1186 | function_list | while do_read |
| 1187 | do |
| 1188 | if class_is_info_p |
| 1189 | then |
| 1190 | printf " ${returntype} ${function};\n" |
| 1191 | fi |
| 1192 | done |
| 1193 | printf "\n" |
| 1194 | printf " /* target specific vector. */\n" |
| 1195 | printf " struct gdbarch_tdep *tdep;\n" |
| 1196 | printf " gdbarch_dump_tdep_ftype *dump_tdep;\n" |
| 1197 | printf "\n" |
| 1198 | printf " /* per-architecture data-pointers */\n" |
| 1199 | printf " unsigned nr_data;\n" |
| 1200 | printf " void **data;\n" |
| 1201 | printf "\n" |
| 1202 | printf " /* per-architecture swap-regions */\n" |
| 1203 | printf " struct gdbarch_swap *swap;\n" |
| 1204 | printf "\n" |
| 1205 | cat <<EOF |
| 1206 | /* Multi-arch values. |
| 1207 | |
| 1208 | When extending this structure you must: |
| 1209 | |
| 1210 | Add the field below. |
| 1211 | |
| 1212 | Declare set/get functions and define the corresponding |
| 1213 | macro in gdbarch.h. |
| 1214 | |
| 1215 | gdbarch_alloc(): If zero/NULL is not a suitable default, |
| 1216 | initialize the new field. |
| 1217 | |
| 1218 | verify_gdbarch(): Confirm that the target updated the field |
| 1219 | correctly. |
| 1220 | |
| 1221 | gdbarch_dump(): Add a fprintf_unfiltered call so that the new |
| 1222 | field is dumped out |
| 1223 | |
| 1224 | \`\`startup_gdbarch()'': Append an initial value to the static |
| 1225 | variable (base values on the host's c-type system). |
| 1226 | |
| 1227 | get_gdbarch(): Implement the set/get functions (probably using |
| 1228 | the macro's as shortcuts). |
| 1229 | |
| 1230 | */ |
| 1231 | |
| 1232 | EOF |
| 1233 | function_list | while do_read |
| 1234 | do |
| 1235 | if class_is_variable_p |
| 1236 | then |
| 1237 | printf " ${returntype} ${function};\n" |
| 1238 | elif class_is_function_p |
| 1239 | then |
| 1240 | printf " gdbarch_${function}_ftype *${function};\n" |
| 1241 | fi |
| 1242 | done |
| 1243 | printf "};\n" |
| 1244 | |
| 1245 | # A pre-initialized vector |
| 1246 | printf "\n" |
| 1247 | printf "\n" |
| 1248 | cat <<EOF |
| 1249 | /* The default architecture uses host values (for want of a better |
| 1250 | choice). */ |
| 1251 | EOF |
| 1252 | printf "\n" |
| 1253 | printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n" |
| 1254 | printf "\n" |
| 1255 | printf "struct gdbarch startup_gdbarch =\n" |
| 1256 | printf "{\n" |
| 1257 | printf " 1, /* Always initialized. */\n" |
| 1258 | printf " NULL, /* The obstack. */\n" |
| 1259 | printf " /* basic architecture information */\n" |
| 1260 | function_list | while do_read |
| 1261 | do |
| 1262 | if class_is_info_p |
| 1263 | then |
| 1264 | printf " ${staticdefault}, /* ${function} */\n" |
| 1265 | fi |
| 1266 | done |
| 1267 | cat <<EOF |
| 1268 | /* target specific vector and its dump routine */ |
| 1269 | NULL, NULL, |
| 1270 | /*per-architecture data-pointers and swap regions */ |
| 1271 | 0, NULL, NULL, |
| 1272 | /* Multi-arch values */ |
| 1273 | EOF |
| 1274 | function_list | while do_read |
| 1275 | do |
| 1276 | if class_is_function_p || class_is_variable_p |
| 1277 | then |
| 1278 | printf " ${staticdefault}, /* ${function} */\n" |
| 1279 | fi |
| 1280 | done |
| 1281 | cat <<EOF |
| 1282 | /* startup_gdbarch() */ |
| 1283 | }; |
| 1284 | |
| 1285 | struct gdbarch *current_gdbarch = &startup_gdbarch; |
| 1286 | EOF |
| 1287 | |
| 1288 | # Create a new gdbarch struct |
| 1289 | cat <<EOF |
| 1290 | |
| 1291 | /* Create a new \`\`struct gdbarch'' based on information provided by |
| 1292 | \`\`struct gdbarch_info''. */ |
| 1293 | EOF |
| 1294 | printf "\n" |
| 1295 | cat <<EOF |
| 1296 | struct gdbarch * |
| 1297 | gdbarch_alloc (const struct gdbarch_info *info, |
| 1298 | struct gdbarch_tdep *tdep) |
| 1299 | { |
| 1300 | /* NOTE: The new architecture variable is named \`\`current_gdbarch'' |
| 1301 | so that macros such as TARGET_ARCHITECTURE, when expanded, refer to |
| 1302 | the current local architecture and not the previous global |
| 1303 | architecture. This ensures that the new architectures initial |
| 1304 | values are not influenced by the previous architecture. Once |
| 1305 | everything is parameterised with gdbarch, this will go away. */ |
| 1306 | struct gdbarch *current_gdbarch; |
| 1307 | |
| 1308 | /* Create an obstack for allocating all the per-architecture memory, |
| 1309 | then use that to allocate the architecture vector. */ |
| 1310 | struct obstack *obstack = XMALLOC (struct obstack); |
| 1311 | obstack_init (obstack); |
| 1312 | current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch)); |
| 1313 | memset (current_gdbarch, 0, sizeof (*current_gdbarch)); |
| 1314 | current_gdbarch->obstack = obstack; |
| 1315 | |
| 1316 | alloc_gdbarch_data (current_gdbarch); |
| 1317 | |
| 1318 | current_gdbarch->tdep = tdep; |
| 1319 | EOF |
| 1320 | printf "\n" |
| 1321 | function_list | while do_read |
| 1322 | do |
| 1323 | if class_is_info_p |
| 1324 | then |
| 1325 | printf " current_gdbarch->${function} = info->${function};\n" |
| 1326 | fi |
| 1327 | done |
| 1328 | printf "\n" |
| 1329 | printf " /* Force the explicit initialization of these. */\n" |
| 1330 | function_list | while do_read |
| 1331 | do |
| 1332 | if class_is_function_p || class_is_variable_p |
| 1333 | then |
| 1334 | if [ -n "${predefault}" -a "x${predefault}" != "x0" ] |
| 1335 | then |
| 1336 | printf " current_gdbarch->${function} = ${predefault};\n" |
| 1337 | fi |
| 1338 | fi |
| 1339 | done |
| 1340 | cat <<EOF |
| 1341 | /* gdbarch_alloc() */ |
| 1342 | |
| 1343 | return current_gdbarch; |
| 1344 | } |
| 1345 | EOF |
| 1346 | |
| 1347 | # Free a gdbarch struct. |
| 1348 | printf "\n" |
| 1349 | printf "\n" |
| 1350 | cat <<EOF |
| 1351 | /* Allocate extra space using the per-architecture obstack. */ |
| 1352 | |
| 1353 | void * |
| 1354 | gdbarch_obstack_zalloc (struct gdbarch *arch, long size) |
| 1355 | { |
| 1356 | void *data = obstack_alloc (arch->obstack, size); |
| 1357 | memset (data, 0, size); |
| 1358 | return data; |
| 1359 | } |
| 1360 | |
| 1361 | |
| 1362 | /* Free a gdbarch struct. This should never happen in normal |
| 1363 | operation --- once you've created a gdbarch, you keep it around. |
| 1364 | However, if an architecture's init function encounters an error |
| 1365 | building the structure, it may need to clean up a partially |
| 1366 | constructed gdbarch. */ |
| 1367 | |
| 1368 | void |
| 1369 | gdbarch_free (struct gdbarch *arch) |
| 1370 | { |
| 1371 | struct obstack *obstack; |
| 1372 | gdb_assert (arch != NULL); |
| 1373 | gdb_assert (!arch->initialized_p); |
| 1374 | obstack = arch->obstack; |
| 1375 | obstack_free (obstack, 0); /* Includes the ARCH. */ |
| 1376 | xfree (obstack); |
| 1377 | } |
| 1378 | EOF |
| 1379 | |
| 1380 | # verify a new architecture |
| 1381 | cat <<EOF |
| 1382 | |
| 1383 | |
| 1384 | /* Ensure that all values in a GDBARCH are reasonable. */ |
| 1385 | |
| 1386 | /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it |
| 1387 | just happens to match the global variable \`\`current_gdbarch''. That |
| 1388 | way macros refering to that variable get the local and not the global |
| 1389 | version - ulgh. Once everything is parameterised with gdbarch, this |
| 1390 | will go away. */ |
| 1391 | |
| 1392 | static void |
| 1393 | verify_gdbarch (struct gdbarch *current_gdbarch) |
| 1394 | { |
| 1395 | struct ui_file *log; |
| 1396 | struct cleanup *cleanups; |
| 1397 | long dummy; |
| 1398 | char *buf; |
| 1399 | log = mem_fileopen (); |
| 1400 | cleanups = make_cleanup_ui_file_delete (log); |
| 1401 | /* fundamental */ |
| 1402 | if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN) |
| 1403 | fprintf_unfiltered (log, "\n\tbyte-order"); |
| 1404 | if (current_gdbarch->bfd_arch_info == NULL) |
| 1405 | fprintf_unfiltered (log, "\n\tbfd_arch_info"); |
| 1406 | /* Check those that need to be defined for the given multi-arch level. */ |
| 1407 | EOF |
| 1408 | function_list | while do_read |
| 1409 | do |
| 1410 | if class_is_function_p || class_is_variable_p |
| 1411 | then |
| 1412 | if [ "x${invalid_p}" = "x0" ] |
| 1413 | then |
| 1414 | printf " /* Skip verify of ${function}, invalid_p == 0 */\n" |
| 1415 | elif class_is_predicate_p |
| 1416 | then |
| 1417 | printf " /* Skip verify of ${function}, has predicate */\n" |
| 1418 | # FIXME: See do_read for potential simplification |
| 1419 | elif [ -n "${invalid_p}" -a -n "${postdefault}" ] |
| 1420 | then |
| 1421 | printf " if (${invalid_p})\n" |
| 1422 | printf " current_gdbarch->${function} = ${postdefault};\n" |
| 1423 | elif [ -n "${predefault}" -a -n "${postdefault}" ] |
| 1424 | then |
| 1425 | printf " if (current_gdbarch->${function} == ${predefault})\n" |
| 1426 | printf " current_gdbarch->${function} = ${postdefault};\n" |
| 1427 | elif [ -n "${postdefault}" ] |
| 1428 | then |
| 1429 | printf " if (current_gdbarch->${function} == 0)\n" |
| 1430 | printf " current_gdbarch->${function} = ${postdefault};\n" |
| 1431 | elif [ -n "${invalid_p}" ] |
| 1432 | then |
| 1433 | printf " if (${invalid_p})\n" |
| 1434 | printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n" |
| 1435 | elif [ -n "${predefault}" ] |
| 1436 | then |
| 1437 | printf " if (current_gdbarch->${function} == ${predefault})\n" |
| 1438 | printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n" |
| 1439 | fi |
| 1440 | fi |
| 1441 | done |
| 1442 | cat <<EOF |
| 1443 | buf = ui_file_xstrdup (log, &dummy); |
| 1444 | make_cleanup (xfree, buf); |
| 1445 | if (strlen (buf) > 0) |
| 1446 | internal_error (__FILE__, __LINE__, |
| 1447 | _("verify_gdbarch: the following are invalid ...%s"), |
| 1448 | buf); |
| 1449 | do_cleanups (cleanups); |
| 1450 | } |
| 1451 | EOF |
| 1452 | |
| 1453 | # dump the structure |
| 1454 | printf "\n" |
| 1455 | printf "\n" |
| 1456 | cat <<EOF |
| 1457 | /* Print out the details of the current architecture. */ |
| 1458 | |
| 1459 | /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it |
| 1460 | just happens to match the global variable \`\`current_gdbarch''. That |
| 1461 | way macros refering to that variable get the local and not the global |
| 1462 | version - ulgh. Once everything is parameterised with gdbarch, this |
| 1463 | will go away. */ |
| 1464 | |
| 1465 | void |
| 1466 | gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file) |
| 1467 | { |
| 1468 | const char *gdb_xm_file = "<not-defined>"; |
| 1469 | const char *gdb_nm_file = "<not-defined>"; |
| 1470 | const char *gdb_tm_file = "<not-defined>"; |
| 1471 | #if defined (GDB_XM_FILE) |
| 1472 | gdb_xm_file = GDB_XM_FILE; |
| 1473 | #endif |
| 1474 | fprintf_unfiltered (file, |
| 1475 | "gdbarch_dump: GDB_XM_FILE = %s\\n", |
| 1476 | gdb_xm_file); |
| 1477 | #if defined (GDB_NM_FILE) |
| 1478 | gdb_nm_file = GDB_NM_FILE; |
| 1479 | #endif |
| 1480 | fprintf_unfiltered (file, |
| 1481 | "gdbarch_dump: GDB_NM_FILE = %s\\n", |
| 1482 | gdb_nm_file); |
| 1483 | #if defined (GDB_TM_FILE) |
| 1484 | gdb_tm_file = GDB_TM_FILE; |
| 1485 | #endif |
| 1486 | fprintf_unfiltered (file, |
| 1487 | "gdbarch_dump: GDB_TM_FILE = %s\\n", |
| 1488 | gdb_tm_file); |
| 1489 | EOF |
| 1490 | function_list | sort -t: -k 4 | while do_read |
| 1491 | do |
| 1492 | # First the predicate |
| 1493 | if class_is_predicate_p |
| 1494 | then |
| 1495 | if test -n "${macro}" |
| 1496 | then |
| 1497 | printf "#ifdef ${macro}_P\n" |
| 1498 | printf " fprintf_unfiltered (file,\n" |
| 1499 | printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n" |
| 1500 | printf " \"${macro}_P()\",\n" |
| 1501 | printf " XSTRING (${macro}_P ()));\n" |
| 1502 | printf "#endif\n" |
| 1503 | fi |
| 1504 | printf " fprintf_unfiltered (file,\n" |
| 1505 | printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n" |
| 1506 | printf " gdbarch_${function}_p (current_gdbarch));\n" |
| 1507 | fi |
| 1508 | # Print the macro definition. |
| 1509 | if test -n "${macro}" |
| 1510 | then |
| 1511 | printf "#ifdef ${macro}\n" |
| 1512 | if class_is_function_p |
| 1513 | then |
| 1514 | printf " fprintf_unfiltered (file,\n" |
| 1515 | printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n" |
| 1516 | printf " \"${macro}(${actual})\",\n" |
| 1517 | printf " XSTRING (${macro} (${actual})));\n" |
| 1518 | else |
| 1519 | printf " fprintf_unfiltered (file,\n" |
| 1520 | printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n" |
| 1521 | printf " XSTRING (${macro}));\n" |
| 1522 | fi |
| 1523 | printf "#endif\n" |
| 1524 | fi |
| 1525 | # Print the corresponding value. |
| 1526 | if class_is_function_p |
| 1527 | then |
| 1528 | printf " fprintf_unfiltered (file,\n" |
| 1529 | printf " \"gdbarch_dump: ${function} = <0x%%lx>\\\\n\",\n" |
| 1530 | printf " (long) current_gdbarch->${function});\n" |
| 1531 | else |
| 1532 | # It is a variable |
| 1533 | case "${print}:${returntype}" in |
| 1534 | :CORE_ADDR ) |
| 1535 | fmt="0x%s" |
| 1536 | print="paddr_nz (current_gdbarch->${function})" |
| 1537 | ;; |
| 1538 | :* ) |
| 1539 | fmt="%s" |
| 1540 | print="paddr_d (current_gdbarch->${function})" |
| 1541 | ;; |
| 1542 | * ) |
| 1543 | fmt="%s" |
| 1544 | ;; |
| 1545 | esac |
| 1546 | printf " fprintf_unfiltered (file,\n" |
| 1547 | printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}" |
| 1548 | printf " ${print});\n" |
| 1549 | fi |
| 1550 | done |
| 1551 | cat <<EOF |
| 1552 | if (current_gdbarch->dump_tdep != NULL) |
| 1553 | current_gdbarch->dump_tdep (current_gdbarch, file); |
| 1554 | } |
| 1555 | EOF |
| 1556 | |
| 1557 | |
| 1558 | # GET/SET |
| 1559 | printf "\n" |
| 1560 | cat <<EOF |
| 1561 | struct gdbarch_tdep * |
| 1562 | gdbarch_tdep (struct gdbarch *gdbarch) |
| 1563 | { |
| 1564 | if (gdbarch_debug >= 2) |
| 1565 | fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n"); |
| 1566 | return gdbarch->tdep; |
| 1567 | } |
| 1568 | EOF |
| 1569 | printf "\n" |
| 1570 | function_list | while do_read |
| 1571 | do |
| 1572 | if class_is_predicate_p |
| 1573 | then |
| 1574 | printf "\n" |
| 1575 | printf "int\n" |
| 1576 | printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n" |
| 1577 | printf "{\n" |
| 1578 | printf " gdb_assert (gdbarch != NULL);\n" |
| 1579 | printf " return ${predicate};\n" |
| 1580 | printf "}\n" |
| 1581 | fi |
| 1582 | if class_is_function_p |
| 1583 | then |
| 1584 | printf "\n" |
| 1585 | printf "${returntype}\n" |
| 1586 | if [ "x${formal}" = "xvoid" ] |
| 1587 | then |
| 1588 | printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" |
| 1589 | else |
| 1590 | printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n" |
| 1591 | fi |
| 1592 | printf "{\n" |
| 1593 | printf " gdb_assert (gdbarch != NULL);\n" |
| 1594 | printf " gdb_assert (gdbarch->${function} != NULL);\n" |
| 1595 | if class_is_predicate_p && test -n "${predefault}" |
| 1596 | then |
| 1597 | # Allow a call to a function with a predicate. |
| 1598 | printf " /* Do not check predicate: ${predicate}, allow call. */\n" |
| 1599 | fi |
| 1600 | printf " if (gdbarch_debug >= 2)\n" |
| 1601 | printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" |
| 1602 | if [ "x${actual}" = "x-" -o "x${actual}" = "x" ] |
| 1603 | then |
| 1604 | if class_is_multiarch_p |
| 1605 | then |
| 1606 | params="gdbarch" |
| 1607 | else |
| 1608 | params="" |
| 1609 | fi |
| 1610 | else |
| 1611 | if class_is_multiarch_p |
| 1612 | then |
| 1613 | params="gdbarch, ${actual}" |
| 1614 | else |
| 1615 | params="${actual}" |
| 1616 | fi |
| 1617 | fi |
| 1618 | if [ "x${returntype}" = "xvoid" ] |
| 1619 | then |
| 1620 | printf " gdbarch->${function} (${params});\n" |
| 1621 | else |
| 1622 | printf " return gdbarch->${function} (${params});\n" |
| 1623 | fi |
| 1624 | printf "}\n" |
| 1625 | printf "\n" |
| 1626 | printf "void\n" |
| 1627 | printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n" |
| 1628 | printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n" |
| 1629 | printf "{\n" |
| 1630 | printf " gdbarch->${function} = ${function};\n" |
| 1631 | printf "}\n" |
| 1632 | elif class_is_variable_p |
| 1633 | then |
| 1634 | printf "\n" |
| 1635 | printf "${returntype}\n" |
| 1636 | printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" |
| 1637 | printf "{\n" |
| 1638 | printf " gdb_assert (gdbarch != NULL);\n" |
| 1639 | if [ "x${invalid_p}" = "x0" ] |
| 1640 | then |
| 1641 | printf " /* Skip verify of ${function}, invalid_p == 0 */\n" |
| 1642 | elif [ -n "${invalid_p}" ] |
| 1643 | then |
| 1644 | printf " /* Check variable is valid. */\n" |
| 1645 | printf " gdb_assert (!(${invalid_p}));\n" |
| 1646 | elif [ -n "${predefault}" ] |
| 1647 | then |
| 1648 | printf " /* Check variable changed from pre-default. */\n" |
| 1649 | printf " gdb_assert (gdbarch->${function} != ${predefault});\n" |
| 1650 | fi |
| 1651 | printf " if (gdbarch_debug >= 2)\n" |
| 1652 | printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" |
| 1653 | printf " return gdbarch->${function};\n" |
| 1654 | printf "}\n" |
| 1655 | printf "\n" |
| 1656 | printf "void\n" |
| 1657 | printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n" |
| 1658 | printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n" |
| 1659 | printf "{\n" |
| 1660 | printf " gdbarch->${function} = ${function};\n" |
| 1661 | printf "}\n" |
| 1662 | elif class_is_info_p |
| 1663 | then |
| 1664 | printf "\n" |
| 1665 | printf "${returntype}\n" |
| 1666 | printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" |
| 1667 | printf "{\n" |
| 1668 | printf " gdb_assert (gdbarch != NULL);\n" |
| 1669 | printf " if (gdbarch_debug >= 2)\n" |
| 1670 | printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" |
| 1671 | printf " return gdbarch->${function};\n" |
| 1672 | printf "}\n" |
| 1673 | fi |
| 1674 | done |
| 1675 | |
| 1676 | # All the trailing guff |
| 1677 | cat <<EOF |
| 1678 | |
| 1679 | |
| 1680 | /* Keep a registry of per-architecture data-pointers required by GDB |
| 1681 | modules. */ |
| 1682 | |
| 1683 | struct gdbarch_data |
| 1684 | { |
| 1685 | unsigned index; |
| 1686 | int init_p; |
| 1687 | gdbarch_data_pre_init_ftype *pre_init; |
| 1688 | gdbarch_data_post_init_ftype *post_init; |
| 1689 | }; |
| 1690 | |
| 1691 | struct gdbarch_data_registration |
| 1692 | { |
| 1693 | struct gdbarch_data *data; |
| 1694 | struct gdbarch_data_registration *next; |
| 1695 | }; |
| 1696 | |
| 1697 | struct gdbarch_data_registry |
| 1698 | { |
| 1699 | unsigned nr; |
| 1700 | struct gdbarch_data_registration *registrations; |
| 1701 | }; |
| 1702 | |
| 1703 | struct gdbarch_data_registry gdbarch_data_registry = |
| 1704 | { |
| 1705 | 0, NULL, |
| 1706 | }; |
| 1707 | |
| 1708 | static struct gdbarch_data * |
| 1709 | gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init, |
| 1710 | gdbarch_data_post_init_ftype *post_init) |
| 1711 | { |
| 1712 | struct gdbarch_data_registration **curr; |
| 1713 | /* Append the new registraration. */ |
| 1714 | for (curr = &gdbarch_data_registry.registrations; |
| 1715 | (*curr) != NULL; |
| 1716 | curr = &(*curr)->next); |
| 1717 | (*curr) = XMALLOC (struct gdbarch_data_registration); |
| 1718 | (*curr)->next = NULL; |
| 1719 | (*curr)->data = XMALLOC (struct gdbarch_data); |
| 1720 | (*curr)->data->index = gdbarch_data_registry.nr++; |
| 1721 | (*curr)->data->pre_init = pre_init; |
| 1722 | (*curr)->data->post_init = post_init; |
| 1723 | (*curr)->data->init_p = 1; |
| 1724 | return (*curr)->data; |
| 1725 | } |
| 1726 | |
| 1727 | struct gdbarch_data * |
| 1728 | gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init) |
| 1729 | { |
| 1730 | return gdbarch_data_register (pre_init, NULL); |
| 1731 | } |
| 1732 | |
| 1733 | struct gdbarch_data * |
| 1734 | gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init) |
| 1735 | { |
| 1736 | return gdbarch_data_register (NULL, post_init); |
| 1737 | } |
| 1738 | |
| 1739 | /* Create/delete the gdbarch data vector. */ |
| 1740 | |
| 1741 | static void |
| 1742 | alloc_gdbarch_data (struct gdbarch *gdbarch) |
| 1743 | { |
| 1744 | gdb_assert (gdbarch->data == NULL); |
| 1745 | gdbarch->nr_data = gdbarch_data_registry.nr; |
| 1746 | gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *); |
| 1747 | } |
| 1748 | |
| 1749 | /* Initialize the current value of the specified per-architecture |
| 1750 | data-pointer. */ |
| 1751 | |
| 1752 | void |
| 1753 | deprecated_set_gdbarch_data (struct gdbarch *gdbarch, |
| 1754 | struct gdbarch_data *data, |
| 1755 | void *pointer) |
| 1756 | { |
| 1757 | gdb_assert (data->index < gdbarch->nr_data); |
| 1758 | gdb_assert (gdbarch->data[data->index] == NULL); |
| 1759 | gdb_assert (data->pre_init == NULL); |
| 1760 | gdbarch->data[data->index] = pointer; |
| 1761 | } |
| 1762 | |
| 1763 | /* Return the current value of the specified per-architecture |
| 1764 | data-pointer. */ |
| 1765 | |
| 1766 | void * |
| 1767 | gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data) |
| 1768 | { |
| 1769 | gdb_assert (data->index < gdbarch->nr_data); |
| 1770 | if (gdbarch->data[data->index] == NULL) |
| 1771 | { |
| 1772 | /* The data-pointer isn't initialized, call init() to get a |
| 1773 | value. */ |
| 1774 | if (data->pre_init != NULL) |
| 1775 | /* Mid architecture creation: pass just the obstack, and not |
| 1776 | the entire architecture, as that way it isn't possible for |
| 1777 | pre-init code to refer to undefined architecture |
| 1778 | fields. */ |
| 1779 | gdbarch->data[data->index] = data->pre_init (gdbarch->obstack); |
| 1780 | else if (gdbarch->initialized_p |
| 1781 | && data->post_init != NULL) |
| 1782 | /* Post architecture creation: pass the entire architecture |
| 1783 | (as all fields are valid), but be careful to also detect |
| 1784 | recursive references. */ |
| 1785 | { |
| 1786 | gdb_assert (data->init_p); |
| 1787 | data->init_p = 0; |
| 1788 | gdbarch->data[data->index] = data->post_init (gdbarch); |
| 1789 | data->init_p = 1; |
| 1790 | } |
| 1791 | else |
| 1792 | /* The architecture initialization hasn't completed - punt - |
| 1793 | hope that the caller knows what they are doing. Once |
| 1794 | deprecated_set_gdbarch_data has been initialized, this can be |
| 1795 | changed to an internal error. */ |
| 1796 | return NULL; |
| 1797 | gdb_assert (gdbarch->data[data->index] != NULL); |
| 1798 | } |
| 1799 | return gdbarch->data[data->index]; |
| 1800 | } |
| 1801 | |
| 1802 | |
| 1803 | /* Keep a registry of the architectures known by GDB. */ |
| 1804 | |
| 1805 | struct gdbarch_registration |
| 1806 | { |
| 1807 | enum bfd_architecture bfd_architecture; |
| 1808 | gdbarch_init_ftype *init; |
| 1809 | gdbarch_dump_tdep_ftype *dump_tdep; |
| 1810 | struct gdbarch_list *arches; |
| 1811 | struct gdbarch_registration *next; |
| 1812 | }; |
| 1813 | |
| 1814 | static struct gdbarch_registration *gdbarch_registry = NULL; |
| 1815 | |
| 1816 | static void |
| 1817 | append_name (const char ***buf, int *nr, const char *name) |
| 1818 | { |
| 1819 | *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1)); |
| 1820 | (*buf)[*nr] = name; |
| 1821 | *nr += 1; |
| 1822 | } |
| 1823 | |
| 1824 | const char ** |
| 1825 | gdbarch_printable_names (void) |
| 1826 | { |
| 1827 | /* Accumulate a list of names based on the registed list of |
| 1828 | architectures. */ |
| 1829 | enum bfd_architecture a; |
| 1830 | int nr_arches = 0; |
| 1831 | const char **arches = NULL; |
| 1832 | struct gdbarch_registration *rego; |
| 1833 | for (rego = gdbarch_registry; |
| 1834 | rego != NULL; |
| 1835 | rego = rego->next) |
| 1836 | { |
| 1837 | const struct bfd_arch_info *ap; |
| 1838 | ap = bfd_lookup_arch (rego->bfd_architecture, 0); |
| 1839 | if (ap == NULL) |
| 1840 | internal_error (__FILE__, __LINE__, |
| 1841 | _("gdbarch_architecture_names: multi-arch unknown")); |
| 1842 | do |
| 1843 | { |
| 1844 | append_name (&arches, &nr_arches, ap->printable_name); |
| 1845 | ap = ap->next; |
| 1846 | } |
| 1847 | while (ap != NULL); |
| 1848 | } |
| 1849 | append_name (&arches, &nr_arches, NULL); |
| 1850 | return arches; |
| 1851 | } |
| 1852 | |
| 1853 | |
| 1854 | void |
| 1855 | gdbarch_register (enum bfd_architecture bfd_architecture, |
| 1856 | gdbarch_init_ftype *init, |
| 1857 | gdbarch_dump_tdep_ftype *dump_tdep) |
| 1858 | { |
| 1859 | struct gdbarch_registration **curr; |
| 1860 | const struct bfd_arch_info *bfd_arch_info; |
| 1861 | /* Check that BFD recognizes this architecture */ |
| 1862 | bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0); |
| 1863 | if (bfd_arch_info == NULL) |
| 1864 | { |
| 1865 | internal_error (__FILE__, __LINE__, |
| 1866 | _("gdbarch: Attempt to register unknown architecture (%d)"), |
| 1867 | bfd_architecture); |
| 1868 | } |
| 1869 | /* Check that we haven't seen this architecture before */ |
| 1870 | for (curr = &gdbarch_registry; |
| 1871 | (*curr) != NULL; |
| 1872 | curr = &(*curr)->next) |
| 1873 | { |
| 1874 | if (bfd_architecture == (*curr)->bfd_architecture) |
| 1875 | internal_error (__FILE__, __LINE__, |
| 1876 | _("gdbarch: Duplicate registraration of architecture (%s)"), |
| 1877 | bfd_arch_info->printable_name); |
| 1878 | } |
| 1879 | /* log it */ |
| 1880 | if (gdbarch_debug) |
| 1881 | fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n", |
| 1882 | bfd_arch_info->printable_name, |
| 1883 | (long) init); |
| 1884 | /* Append it */ |
| 1885 | (*curr) = XMALLOC (struct gdbarch_registration); |
| 1886 | (*curr)->bfd_architecture = bfd_architecture; |
| 1887 | (*curr)->init = init; |
| 1888 | (*curr)->dump_tdep = dump_tdep; |
| 1889 | (*curr)->arches = NULL; |
| 1890 | (*curr)->next = NULL; |
| 1891 | } |
| 1892 | |
| 1893 | void |
| 1894 | register_gdbarch_init (enum bfd_architecture bfd_architecture, |
| 1895 | gdbarch_init_ftype *init) |
| 1896 | { |
| 1897 | gdbarch_register (bfd_architecture, init, NULL); |
| 1898 | } |
| 1899 | |
| 1900 | |
| 1901 | /* Look for an architecture using gdbarch_info. */ |
| 1902 | |
| 1903 | struct gdbarch_list * |
| 1904 | gdbarch_list_lookup_by_info (struct gdbarch_list *arches, |
| 1905 | const struct gdbarch_info *info) |
| 1906 | { |
| 1907 | for (; arches != NULL; arches = arches->next) |
| 1908 | { |
| 1909 | if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info) |
| 1910 | continue; |
| 1911 | if (info->byte_order != arches->gdbarch->byte_order) |
| 1912 | continue; |
| 1913 | if (info->osabi != arches->gdbarch->osabi) |
| 1914 | continue; |
| 1915 | if (info->target_desc != arches->gdbarch->target_desc) |
| 1916 | continue; |
| 1917 | return arches; |
| 1918 | } |
| 1919 | return NULL; |
| 1920 | } |
| 1921 | |
| 1922 | |
| 1923 | /* Find an architecture that matches the specified INFO. Create a new |
| 1924 | architecture if needed. Return that new architecture. Assumes |
| 1925 | that there is no current architecture. */ |
| 1926 | |
| 1927 | static struct gdbarch * |
| 1928 | find_arch_by_info (struct gdbarch_info info) |
| 1929 | { |
| 1930 | struct gdbarch *new_gdbarch; |
| 1931 | struct gdbarch_registration *rego; |
| 1932 | |
| 1933 | /* The existing architecture has been swapped out - all this code |
| 1934 | works from a clean slate. */ |
| 1935 | gdb_assert (current_gdbarch == NULL); |
| 1936 | |
| 1937 | /* Fill in missing parts of the INFO struct using a number of |
| 1938 | sources: "set ..."; INFOabfd supplied; and the global |
| 1939 | defaults. */ |
| 1940 | gdbarch_info_fill (&info); |
| 1941 | |
| 1942 | /* Must have found some sort of architecture. */ |
| 1943 | gdb_assert (info.bfd_arch_info != NULL); |
| 1944 | |
| 1945 | if (gdbarch_debug) |
| 1946 | { |
| 1947 | fprintf_unfiltered (gdb_stdlog, |
| 1948 | "find_arch_by_info: info.bfd_arch_info %s\n", |
| 1949 | (info.bfd_arch_info != NULL |
| 1950 | ? info.bfd_arch_info->printable_name |
| 1951 | : "(null)")); |
| 1952 | fprintf_unfiltered (gdb_stdlog, |
| 1953 | "find_arch_by_info: info.byte_order %d (%s)\n", |
| 1954 | info.byte_order, |
| 1955 | (info.byte_order == BFD_ENDIAN_BIG ? "big" |
| 1956 | : info.byte_order == BFD_ENDIAN_LITTLE ? "little" |
| 1957 | : "default")); |
| 1958 | fprintf_unfiltered (gdb_stdlog, |
| 1959 | "find_arch_by_info: info.osabi %d (%s)\n", |
| 1960 | info.osabi, gdbarch_osabi_name (info.osabi)); |
| 1961 | fprintf_unfiltered (gdb_stdlog, |
| 1962 | "find_arch_by_info: info.abfd 0x%lx\n", |
| 1963 | (long) info.abfd); |
| 1964 | fprintf_unfiltered (gdb_stdlog, |
| 1965 | "find_arch_by_info: info.tdep_info 0x%lx\n", |
| 1966 | (long) info.tdep_info); |
| 1967 | } |
| 1968 | |
| 1969 | /* Find the tdep code that knows about this architecture. */ |
| 1970 | for (rego = gdbarch_registry; |
| 1971 | rego != NULL; |
| 1972 | rego = rego->next) |
| 1973 | if (rego->bfd_architecture == info.bfd_arch_info->arch) |
| 1974 | break; |
| 1975 | if (rego == NULL) |
| 1976 | { |
| 1977 | if (gdbarch_debug) |
| 1978 | fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " |
| 1979 | "No matching architecture\n"); |
| 1980 | return 0; |
| 1981 | } |
| 1982 | |
| 1983 | /* Ask the tdep code for an architecture that matches "info". */ |
| 1984 | new_gdbarch = rego->init (info, rego->arches); |
| 1985 | |
| 1986 | /* Did the tdep code like it? No. Reject the change and revert to |
| 1987 | the old architecture. */ |
| 1988 | if (new_gdbarch == NULL) |
| 1989 | { |
| 1990 | if (gdbarch_debug) |
| 1991 | fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " |
| 1992 | "Target rejected architecture\n"); |
| 1993 | return NULL; |
| 1994 | } |
| 1995 | |
| 1996 | /* Is this a pre-existing architecture (as determined by already |
| 1997 | being initialized)? Move it to the front of the architecture |
| 1998 | list (keeping the list sorted Most Recently Used). */ |
| 1999 | if (new_gdbarch->initialized_p) |
| 2000 | { |
| 2001 | struct gdbarch_list **list; |
| 2002 | struct gdbarch_list *this; |
| 2003 | if (gdbarch_debug) |
| 2004 | fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " |
| 2005 | "Previous architecture 0x%08lx (%s) selected\n", |
| 2006 | (long) new_gdbarch, |
| 2007 | new_gdbarch->bfd_arch_info->printable_name); |
| 2008 | /* Find the existing arch in the list. */ |
| 2009 | for (list = ®o->arches; |
| 2010 | (*list) != NULL && (*list)->gdbarch != new_gdbarch; |
| 2011 | list = &(*list)->next); |
| 2012 | /* It had better be in the list of architectures. */ |
| 2013 | gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch); |
| 2014 | /* Unlink THIS. */ |
| 2015 | this = (*list); |
| 2016 | (*list) = this->next; |
| 2017 | /* Insert THIS at the front. */ |
| 2018 | this->next = rego->arches; |
| 2019 | rego->arches = this; |
| 2020 | /* Return it. */ |
| 2021 | return new_gdbarch; |
| 2022 | } |
| 2023 | |
| 2024 | /* It's a new architecture. */ |
| 2025 | if (gdbarch_debug) |
| 2026 | fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " |
| 2027 | "New architecture 0x%08lx (%s) selected\n", |
| 2028 | (long) new_gdbarch, |
| 2029 | new_gdbarch->bfd_arch_info->printable_name); |
| 2030 | |
| 2031 | /* Insert the new architecture into the front of the architecture |
| 2032 | list (keep the list sorted Most Recently Used). */ |
| 2033 | { |
| 2034 | struct gdbarch_list *this = XMALLOC (struct gdbarch_list); |
| 2035 | this->next = rego->arches; |
| 2036 | this->gdbarch = new_gdbarch; |
| 2037 | rego->arches = this; |
| 2038 | } |
| 2039 | |
| 2040 | /* Check that the newly installed architecture is valid. Plug in |
| 2041 | any post init values. */ |
| 2042 | new_gdbarch->dump_tdep = rego->dump_tdep; |
| 2043 | verify_gdbarch (new_gdbarch); |
| 2044 | new_gdbarch->initialized_p = 1; |
| 2045 | |
| 2046 | if (gdbarch_debug) |
| 2047 | gdbarch_dump (new_gdbarch, gdb_stdlog); |
| 2048 | |
| 2049 | return new_gdbarch; |
| 2050 | } |
| 2051 | |
| 2052 | struct gdbarch * |
| 2053 | gdbarch_find_by_info (struct gdbarch_info info) |
| 2054 | { |
| 2055 | struct gdbarch *new_gdbarch; |
| 2056 | |
| 2057 | /* Save the previously selected architecture, setting the global to |
| 2058 | NULL. This stops things like gdbarch->init() trying to use the |
| 2059 | previous architecture's configuration. The previous architecture |
| 2060 | may not even be of the same architecture family. The most recent |
| 2061 | architecture of the same family is found at the head of the |
| 2062 | rego->arches list. */ |
| 2063 | struct gdbarch *old_gdbarch = current_gdbarch; |
| 2064 | current_gdbarch = NULL; |
| 2065 | |
| 2066 | /* Find the specified architecture. */ |
| 2067 | new_gdbarch = find_arch_by_info (info); |
| 2068 | |
| 2069 | /* Restore the existing architecture. */ |
| 2070 | gdb_assert (current_gdbarch == NULL); |
| 2071 | current_gdbarch = old_gdbarch; |
| 2072 | |
| 2073 | return new_gdbarch; |
| 2074 | } |
| 2075 | |
| 2076 | /* Make the specified architecture current. */ |
| 2077 | |
| 2078 | void |
| 2079 | deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch) |
| 2080 | { |
| 2081 | gdb_assert (new_gdbarch != NULL); |
| 2082 | gdb_assert (current_gdbarch != NULL); |
| 2083 | gdb_assert (new_gdbarch->initialized_p); |
| 2084 | current_gdbarch = new_gdbarch; |
| 2085 | architecture_changed_event (); |
| 2086 | reinit_frame_cache (); |
| 2087 | } |
| 2088 | |
| 2089 | extern void _initialize_gdbarch (void); |
| 2090 | |
| 2091 | void |
| 2092 | _initialize_gdbarch (void) |
| 2093 | { |
| 2094 | struct cmd_list_element *c; |
| 2095 | |
| 2096 | add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\ |
| 2097 | Set architecture debugging."), _("\\ |
| 2098 | Show architecture debugging."), _("\\ |
| 2099 | When non-zero, architecture debugging is enabled."), |
| 2100 | NULL, |
| 2101 | show_gdbarch_debug, |
| 2102 | &setdebuglist, &showdebuglist); |
| 2103 | } |
| 2104 | EOF |
| 2105 | |
| 2106 | # close things off |
| 2107 | exec 1>&2 |
| 2108 | #../move-if-change new-gdbarch.c gdbarch.c |
| 2109 | compare_new gdbarch.c |