| 1 | #!/bin/sh -u |
| 2 | |
| 3 | # Architecture commands for GDB, the GNU debugger. |
| 4 | # |
| 5 | # Copyright (C) 1998-2018 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 | ${line}" |
| 65 | else |
| 66 | |
| 67 | # The semantics of IFS varies between different SH's. Some |
| 68 | # treat ``;;' as three fields while some treat it as just two. |
| 69 | # Work around this by eliminating ``;;'' .... |
| 70 | line="`echo "${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 short or unsigned short for the target machine. |
| 355 | v;int;short_bit;;;8 * sizeof (short);2*TARGET_CHAR_BIT;;0 |
| 356 | # Number of bits in an int or unsigned int for the target machine. |
| 357 | v;int;int_bit;;;8 * sizeof (int);4*TARGET_CHAR_BIT;;0 |
| 358 | # Number of bits in a long or unsigned long for the target machine. |
| 359 | v;int;long_bit;;;8 * sizeof (long);4*TARGET_CHAR_BIT;;0 |
| 360 | # Number of bits in a long long or unsigned long long for the target |
| 361 | # machine. |
| 362 | v;int;long_long_bit;;;8 * sizeof (LONGEST);2*gdbarch->long_bit;;0 |
| 363 | |
| 364 | # The ABI default bit-size and format for "half", "float", "double", and |
| 365 | # "long double". These bit/format pairs should eventually be combined |
| 366 | # into a single object. For the moment, just initialize them as a pair. |
| 367 | # Each format describes both the big and little endian layouts (if |
| 368 | # useful). |
| 369 | |
| 370 | v;int;half_bit;;;16;2*TARGET_CHAR_BIT;;0 |
| 371 | v;const struct floatformat **;half_format;;;;;floatformats_ieee_half;;pformat (gdbarch->half_format) |
| 372 | v;int;float_bit;;;8 * sizeof (float);4*TARGET_CHAR_BIT;;0 |
| 373 | v;const struct floatformat **;float_format;;;;;floatformats_ieee_single;;pformat (gdbarch->float_format) |
| 374 | v;int;double_bit;;;8 * sizeof (double);8*TARGET_CHAR_BIT;;0 |
| 375 | v;const struct floatformat **;double_format;;;;;floatformats_ieee_double;;pformat (gdbarch->double_format) |
| 376 | v;int;long_double_bit;;;8 * sizeof (long double);8*TARGET_CHAR_BIT;;0 |
| 377 | v;const struct floatformat **;long_double_format;;;;;floatformats_ieee_double;;pformat (gdbarch->long_double_format) |
| 378 | |
| 379 | # The ABI default bit-size for "wchar_t". wchar_t is a built-in type |
| 380 | # starting with C++11. |
| 381 | v;int;wchar_bit;;;8 * sizeof (wchar_t);4*TARGET_CHAR_BIT;;0 |
| 382 | # One if \`wchar_t' is signed, zero if unsigned. |
| 383 | v;int;wchar_signed;;;1;-1;1 |
| 384 | |
| 385 | # Returns the floating-point format to be used for values of length LENGTH. |
| 386 | # NAME, if non-NULL, is the type name, which may be used to distinguish |
| 387 | # different target formats of the same length. |
| 388 | m;const struct floatformat **;floatformat_for_type;const char *name, int length;name, length;0;default_floatformat_for_type;;0 |
| 389 | |
| 390 | # For most targets, a pointer on the target and its representation as an |
| 391 | # address in GDB have the same size and "look the same". For such a |
| 392 | # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit |
| 393 | # / addr_bit will be set from it. |
| 394 | # |
| 395 | # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably |
| 396 | # also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and |
| 397 | # gdbarch_address_to_pointer as well. |
| 398 | # |
| 399 | # ptr_bit is the size of a pointer on the target |
| 400 | v;int;ptr_bit;;;8 * sizeof (void*);gdbarch->int_bit;;0 |
| 401 | # addr_bit is the size of a target address as represented in gdb |
| 402 | v;int;addr_bit;;;8 * sizeof (void*);0;gdbarch_ptr_bit (gdbarch); |
| 403 | # |
| 404 | # dwarf2_addr_size is the target address size as used in the Dwarf debug |
| 405 | # info. For .debug_frame FDEs, this is supposed to be the target address |
| 406 | # size from the associated CU header, and which is equivalent to the |
| 407 | # DWARF2_ADDR_SIZE as defined by the target specific GCC back-end. |
| 408 | # Unfortunately there is no good way to determine this value. Therefore |
| 409 | # dwarf2_addr_size simply defaults to the target pointer size. |
| 410 | # |
| 411 | # dwarf2_addr_size is not used for .eh_frame FDEs, which are generally |
| 412 | # defined using the target's pointer size so far. |
| 413 | # |
| 414 | # Note that dwarf2_addr_size only needs to be redefined by a target if the |
| 415 | # GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size, |
| 416 | # and if Dwarf versions < 4 need to be supported. |
| 417 | v;int;dwarf2_addr_size;;;sizeof (void*);0;gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT; |
| 418 | # |
| 419 | # One if \`char' acts like \`signed char', zero if \`unsigned char'. |
| 420 | v;int;char_signed;;;1;-1;1 |
| 421 | # |
| 422 | F;CORE_ADDR;read_pc;readable_regcache *regcache;regcache |
| 423 | F;void;write_pc;struct regcache *regcache, CORE_ADDR val;regcache, val |
| 424 | # Function for getting target's idea of a frame pointer. FIXME: GDB's |
| 425 | # whole scheme for dealing with "frames" and "frame pointers" needs a |
| 426 | # serious shakedown. |
| 427 | 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 |
| 428 | # |
| 429 | M;enum register_status;pseudo_register_read;readable_regcache *regcache, int cookednum, gdb_byte *buf;regcache, cookednum, buf |
| 430 | # Read a register into a new struct value. If the register is wholly |
| 431 | # or partly unavailable, this should call mark_value_bytes_unavailable |
| 432 | # as appropriate. If this is defined, then pseudo_register_read will |
| 433 | # never be called. |
| 434 | M;struct value *;pseudo_register_read_value;readable_regcache *regcache, int cookednum;regcache, cookednum |
| 435 | M;void;pseudo_register_write;struct regcache *regcache, int cookednum, const gdb_byte *buf;regcache, cookednum, buf |
| 436 | # |
| 437 | v;int;num_regs;;;0;-1 |
| 438 | # This macro gives the number of pseudo-registers that live in the |
| 439 | # register namespace but do not get fetched or stored on the target. |
| 440 | # These pseudo-registers may be aliases for other registers, |
| 441 | # combinations of other registers, or they may be computed by GDB. |
| 442 | v;int;num_pseudo_regs;;;0;0;;0 |
| 443 | |
| 444 | # Assemble agent expression bytecode to collect pseudo-register REG. |
| 445 | # Return -1 if something goes wrong, 0 otherwise. |
| 446 | M;int;ax_pseudo_register_collect;struct agent_expr *ax, int reg;ax, reg |
| 447 | |
| 448 | # Assemble agent expression bytecode to push the value of pseudo-register |
| 449 | # REG on the interpreter stack. |
| 450 | # Return -1 if something goes wrong, 0 otherwise. |
| 451 | M;int;ax_pseudo_register_push_stack;struct agent_expr *ax, int reg;ax, reg |
| 452 | |
| 453 | # Some targets/architectures can do extra processing/display of |
| 454 | # segmentation faults. E.g., Intel MPX boundary faults. |
| 455 | # Call the architecture dependent function to handle the fault. |
| 456 | # UIOUT is the output stream where the handler will place information. |
| 457 | M;void;handle_segmentation_fault;struct ui_out *uiout;uiout |
| 458 | |
| 459 | # GDB's standard (or well known) register numbers. These can map onto |
| 460 | # a real register or a pseudo (computed) register or not be defined at |
| 461 | # all (-1). |
| 462 | # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. |
| 463 | v;int;sp_regnum;;;-1;-1;;0 |
| 464 | v;int;pc_regnum;;;-1;-1;;0 |
| 465 | v;int;ps_regnum;;;-1;-1;;0 |
| 466 | v;int;fp0_regnum;;;0;-1;;0 |
| 467 | # Convert stab register number (from \`r\' declaration) to a gdb REGNUM. |
| 468 | m;int;stab_reg_to_regnum;int stab_regnr;stab_regnr;;no_op_reg_to_regnum;;0 |
| 469 | # Provide a default mapping from a ecoff register number to a gdb REGNUM. |
| 470 | m;int;ecoff_reg_to_regnum;int ecoff_regnr;ecoff_regnr;;no_op_reg_to_regnum;;0 |
| 471 | # Convert from an sdb register number to an internal gdb register number. |
| 472 | m;int;sdb_reg_to_regnum;int sdb_regnr;sdb_regnr;;no_op_reg_to_regnum;;0 |
| 473 | # Provide a default mapping from a DWARF2 register number to a gdb REGNUM. |
| 474 | # Return -1 for bad REGNUM. Note: Several targets get this wrong. |
| 475 | m;int;dwarf2_reg_to_regnum;int dwarf2_regnr;dwarf2_regnr;;no_op_reg_to_regnum;;0 |
| 476 | m;const char *;register_name;int regnr;regnr;;0 |
| 477 | |
| 478 | # Return the type of a register specified by the architecture. Only |
| 479 | # the register cache should call this function directly; others should |
| 480 | # use "register_type". |
| 481 | M;struct type *;register_type;int reg_nr;reg_nr |
| 482 | |
| 483 | M;struct frame_id;dummy_id;struct frame_info *this_frame;this_frame |
| 484 | # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete |
| 485 | # deprecated_fp_regnum. |
| 486 | v;int;deprecated_fp_regnum;;;-1;-1;;0 |
| 487 | |
| 488 | 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 |
| 489 | v;int;call_dummy_location;;;;AT_ENTRY_POINT;;0 |
| 490 | 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 |
| 491 | |
| 492 | # Return true if the code of FRAME is writable. |
| 493 | m;int;code_of_frame_writable;struct frame_info *frame;frame;;default_code_of_frame_writable;;0 |
| 494 | |
| 495 | 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 |
| 496 | m;void;print_float_info;struct ui_file *file, struct frame_info *frame, const char *args;file, frame, args;;default_print_float_info;;0 |
| 497 | M;void;print_vector_info;struct ui_file *file, struct frame_info *frame, const char *args;file, frame, args |
| 498 | # MAP a GDB RAW register number onto a simulator register number. See |
| 499 | # also include/...-sim.h. |
| 500 | m;int;register_sim_regno;int reg_nr;reg_nr;;legacy_register_sim_regno;;0 |
| 501 | m;int;cannot_fetch_register;int regnum;regnum;;cannot_register_not;;0 |
| 502 | m;int;cannot_store_register;int regnum;regnum;;cannot_register_not;;0 |
| 503 | |
| 504 | # Determine the address where a longjmp will land and save this address |
| 505 | # in PC. Return nonzero on success. |
| 506 | # |
| 507 | # FRAME corresponds to the longjmp frame. |
| 508 | F;int;get_longjmp_target;struct frame_info *frame, CORE_ADDR *pc;frame, pc |
| 509 | |
| 510 | # |
| 511 | v;int;believe_pcc_promotion;;;;;;; |
| 512 | # |
| 513 | m;int;convert_register_p;int regnum, struct type *type;regnum, type;0;generic_convert_register_p;;0 |
| 514 | 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 |
| 515 | f;void;value_to_register;struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf;frame, regnum, type, buf;0 |
| 516 | # Construct a value representing the contents of register REGNUM in |
| 517 | # frame FRAME_ID, interpreted as type TYPE. The routine needs to |
| 518 | # allocate and return a struct value with all value attributes |
| 519 | # (but not the value contents) filled in. |
| 520 | 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 |
| 521 | # |
| 522 | m;CORE_ADDR;pointer_to_address;struct type *type, const gdb_byte *buf;type, buf;;unsigned_pointer_to_address;;0 |
| 523 | m;void;address_to_pointer;struct type *type, gdb_byte *buf, CORE_ADDR addr;type, buf, addr;;unsigned_address_to_pointer;;0 |
| 524 | M;CORE_ADDR;integer_to_address;struct type *type, const gdb_byte *buf;type, buf |
| 525 | |
| 526 | # Return the return-value convention that will be used by FUNCTION |
| 527 | # to return a value of type VALTYPE. FUNCTION may be NULL in which |
| 528 | # case the return convention is computed based only on VALTYPE. |
| 529 | # |
| 530 | # If READBUF is not NULL, extract the return value and save it in this buffer. |
| 531 | # |
| 532 | # If WRITEBUF is not NULL, it contains a return value which will be |
| 533 | # stored into the appropriate register. This can be used when we want |
| 534 | # to force the value returned by a function (see the "return" command |
| 535 | # for instance). |
| 536 | 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 |
| 537 | |
| 538 | # Return true if the return value of function is stored in the first hidden |
| 539 | # parameter. In theory, this feature should be language-dependent, specified |
| 540 | # by language and its ABI, such as C++. Unfortunately, compiler may |
| 541 | # implement it to a target-dependent feature. So that we need such hook here |
| 542 | # to be aware of this in GDB. |
| 543 | m;int;return_in_first_hidden_param_p;struct type *type;type;;default_return_in_first_hidden_param_p;;0 |
| 544 | |
| 545 | m;CORE_ADDR;skip_prologue;CORE_ADDR ip;ip;0;0 |
| 546 | M;CORE_ADDR;skip_main_prologue;CORE_ADDR ip;ip |
| 547 | # On some platforms, a single function may provide multiple entry points, |
| 548 | # e.g. one that is used for function-pointer calls and a different one |
| 549 | # that is used for direct function calls. |
| 550 | # In order to ensure that breakpoints set on the function will trigger |
| 551 | # no matter via which entry point the function is entered, a platform |
| 552 | # may provide the skip_entrypoint callback. It is called with IP set |
| 553 | # to the main entry point of a function (as determined by the symbol table), |
| 554 | # and should return the address of the innermost entry point, where the |
| 555 | # actual breakpoint needs to be set. Note that skip_entrypoint is used |
| 556 | # by GDB common code even when debugging optimized code, where skip_prologue |
| 557 | # is not used. |
| 558 | M;CORE_ADDR;skip_entrypoint;CORE_ADDR ip;ip |
| 559 | |
| 560 | f;int;inner_than;CORE_ADDR lhs, CORE_ADDR rhs;lhs, rhs;0;0 |
| 561 | m;const gdb_byte *;breakpoint_from_pc;CORE_ADDR *pcptr, int *lenptr;pcptr, lenptr;0;default_breakpoint_from_pc;;0 |
| 562 | |
| 563 | # Return the breakpoint kind for this target based on *PCPTR. |
| 564 | m;int;breakpoint_kind_from_pc;CORE_ADDR *pcptr;pcptr;;0; |
| 565 | |
| 566 | # Return the software breakpoint from KIND. KIND can have target |
| 567 | # specific meaning like the Z0 kind parameter. |
| 568 | # SIZE is set to the software breakpoint's length in memory. |
| 569 | m;const gdb_byte *;sw_breakpoint_from_kind;int kind, int *size;kind, size;;NULL;;0 |
| 570 | |
| 571 | # Return the breakpoint kind for this target based on the current |
| 572 | # processor state (e.g. the current instruction mode on ARM) and the |
| 573 | # *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. |
| 574 | m;int;breakpoint_kind_from_current_state;struct regcache *regcache, CORE_ADDR *pcptr;regcache, pcptr;0;default_breakpoint_kind_from_current_state;;0 |
| 575 | |
| 576 | M;CORE_ADDR;adjust_breakpoint_address;CORE_ADDR bpaddr;bpaddr |
| 577 | m;int;memory_insert_breakpoint;struct bp_target_info *bp_tgt;bp_tgt;0;default_memory_insert_breakpoint;;0 |
| 578 | m;int;memory_remove_breakpoint;struct bp_target_info *bp_tgt;bp_tgt;0;default_memory_remove_breakpoint;;0 |
| 579 | v;CORE_ADDR;decr_pc_after_break;;;0;;;0 |
| 580 | |
| 581 | # A function can be addressed by either it's "pointer" (possibly a |
| 582 | # descriptor address) or "entry point" (first executable instruction). |
| 583 | # The method "convert_from_func_ptr_addr" converting the former to the |
| 584 | # latter. gdbarch_deprecated_function_start_offset is being used to implement |
| 585 | # a simplified subset of that functionality - the function's address |
| 586 | # corresponds to the "function pointer" and the function's start |
| 587 | # corresponds to the "function entry point" - and hence is redundant. |
| 588 | |
| 589 | v;CORE_ADDR;deprecated_function_start_offset;;;0;;;0 |
| 590 | |
| 591 | # Return the remote protocol register number associated with this |
| 592 | # register. Normally the identity mapping. |
| 593 | m;int;remote_register_number;int regno;regno;;default_remote_register_number;;0 |
| 594 | |
| 595 | # Fetch the target specific address used to represent a load module. |
| 596 | F;CORE_ADDR;fetch_tls_load_module_address;struct objfile *objfile;objfile |
| 597 | # |
| 598 | v;CORE_ADDR;frame_args_skip;;;0;;;0 |
| 599 | M;CORE_ADDR;unwind_pc;struct frame_info *next_frame;next_frame |
| 600 | M;CORE_ADDR;unwind_sp;struct frame_info *next_frame;next_frame |
| 601 | # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame |
| 602 | # frame-base. Enable frame-base before frame-unwind. |
| 603 | F;int;frame_num_args;struct frame_info *frame;frame |
| 604 | # |
| 605 | M;CORE_ADDR;frame_align;CORE_ADDR address;address |
| 606 | m;int;stabs_argument_has_addr;struct type *type;type;;default_stabs_argument_has_addr;;0 |
| 607 | v;int;frame_red_zone_size |
| 608 | # |
| 609 | m;CORE_ADDR;convert_from_func_ptr_addr;CORE_ADDR addr, struct target_ops *targ;addr, targ;;convert_from_func_ptr_addr_identity;;0 |
| 610 | # On some machines there are bits in addresses which are not really |
| 611 | # part of the address, but are used by the kernel, the hardware, etc. |
| 612 | # for special purposes. gdbarch_addr_bits_remove takes out any such bits so |
| 613 | # we get a "real" address such as one would find in a symbol table. |
| 614 | # This is used only for addresses of instructions, and even then I'm |
| 615 | # not sure it's used in all contexts. It exists to deal with there |
| 616 | # being a few stray bits in the PC which would mislead us, not as some |
| 617 | # sort of generic thing to handle alignment or segmentation (it's |
| 618 | # possible it should be in TARGET_READ_PC instead). |
| 619 | m;CORE_ADDR;addr_bits_remove;CORE_ADDR addr;addr;;core_addr_identity;;0 |
| 620 | |
| 621 | # On some machines, not all bits of an address word are significant. |
| 622 | # For example, on AArch64, the top bits of an address known as the "tag" |
| 623 | # are ignored by the kernel, the hardware, etc. and can be regarded as |
| 624 | # additional data associated with the address. |
| 625 | v;int;significant_addr_bit;;;;;gdbarch_addr_bit (gdbarch); |
| 626 | |
| 627 | # FIXME/cagney/2001-01-18: This should be split in two. A target method that |
| 628 | # indicates if the target needs software single step. An ISA method to |
| 629 | # implement it. |
| 630 | # |
| 631 | # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the |
| 632 | # target can single step. If not, then implement single step using breakpoints. |
| 633 | # |
| 634 | # Return a vector of addresses on which the software single step |
| 635 | # breakpoints should be inserted. NULL means software single step is |
| 636 | # not used. |
| 637 | # Multiple breakpoints may be inserted for some instructions such as |
| 638 | # conditional branch. However, each implementation must always evaluate |
| 639 | # the condition and only put the breakpoint at the branch destination if |
| 640 | # the condition is true, so that we ensure forward progress when stepping |
| 641 | # past a conditional branch to self. |
| 642 | F;std::vector<CORE_ADDR>;software_single_step;struct regcache *regcache;regcache |
| 643 | |
| 644 | # Return non-zero if the processor is executing a delay slot and a |
| 645 | # further single-step is needed before the instruction finishes. |
| 646 | M;int;single_step_through_delay;struct frame_info *frame;frame |
| 647 | # FIXME: cagney/2003-08-28: Need to find a better way of selecting the |
| 648 | # disassembler. Perhaps objdump can handle it? |
| 649 | f;int;print_insn;bfd_vma vma, struct disassemble_info *info;vma, info;;default_print_insn;;0 |
| 650 | f;CORE_ADDR;skip_trampoline_code;struct frame_info *frame, CORE_ADDR pc;frame, pc;;generic_skip_trampoline_code;;0 |
| 651 | |
| 652 | |
| 653 | # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER |
| 654 | # evaluates non-zero, this is the address where the debugger will place |
| 655 | # a step-resume breakpoint to get us past the dynamic linker. |
| 656 | m;CORE_ADDR;skip_solib_resolver;CORE_ADDR pc;pc;;generic_skip_solib_resolver;;0 |
| 657 | # Some systems also have trampoline code for returning from shared libs. |
| 658 | m;int;in_solib_return_trampoline;CORE_ADDR pc, const char *name;pc, name;;generic_in_solib_return_trampoline;;0 |
| 659 | |
| 660 | # Return true if PC lies inside an indirect branch thunk. |
| 661 | m;bool;in_indirect_branch_thunk;CORE_ADDR pc;pc;;default_in_indirect_branch_thunk;;0 |
| 662 | |
| 663 | # A target might have problems with watchpoints as soon as the stack |
| 664 | # frame of the current function has been destroyed. This mostly happens |
| 665 | # as the first action in a function's epilogue. stack_frame_destroyed_p() |
| 666 | # is defined to return a non-zero value if either the given addr is one |
| 667 | # instruction after the stack destroying instruction up to the trailing |
| 668 | # return instruction or if we can figure out that the stack frame has |
| 669 | # already been invalidated regardless of the value of addr. Targets |
| 670 | # which don't suffer from that problem could just let this functionality |
| 671 | # untouched. |
| 672 | m;int;stack_frame_destroyed_p;CORE_ADDR addr;addr;0;generic_stack_frame_destroyed_p;;0 |
| 673 | # Process an ELF symbol in the minimal symbol table in a backend-specific |
| 674 | # way. Normally this hook is supposed to do nothing, however if required, |
| 675 | # then this hook can be used to apply tranformations to symbols that are |
| 676 | # considered special in some way. For example the MIPS backend uses it |
| 677 | # to interpret \`st_other' information to mark compressed code symbols so |
| 678 | # that they can be treated in the appropriate manner in the processing of |
| 679 | # the main symbol table and DWARF-2 records. |
| 680 | F;void;elf_make_msymbol_special;asymbol *sym, struct minimal_symbol *msym;sym, msym |
| 681 | f;void;coff_make_msymbol_special;int val, struct minimal_symbol *msym;val, msym;;default_coff_make_msymbol_special;;0 |
| 682 | # Process a symbol in the main symbol table in a backend-specific way. |
| 683 | # Normally this hook is supposed to do nothing, however if required, |
| 684 | # then this hook can be used to apply tranformations to symbols that |
| 685 | # are considered special in some way. This is currently used by the |
| 686 | # MIPS backend to make sure compressed code symbols have the ISA bit |
| 687 | # set. This in turn is needed for symbol values seen in GDB to match |
| 688 | # the values used at the runtime by the program itself, for function |
| 689 | # and label references. |
| 690 | f;void;make_symbol_special;struct symbol *sym, struct objfile *objfile;sym, objfile;;default_make_symbol_special;;0 |
| 691 | # Adjust the address retrieved from a DWARF-2 record other than a line |
| 692 | # entry in a backend-specific way. Normally this hook is supposed to |
| 693 | # return the address passed unchanged, however if that is incorrect for |
| 694 | # any reason, then this hook can be used to fix the address up in the |
| 695 | # required manner. This is currently used by the MIPS backend to make |
| 696 | # sure addresses in FDE, range records, etc. referring to compressed |
| 697 | # code have the ISA bit set, matching line information and the symbol |
| 698 | # table. |
| 699 | f;CORE_ADDR;adjust_dwarf2_addr;CORE_ADDR pc;pc;;default_adjust_dwarf2_addr;;0 |
| 700 | # Adjust the address updated by a line entry in a backend-specific way. |
| 701 | # Normally this hook is supposed to return the address passed unchanged, |
| 702 | # however in the case of inconsistencies in these records, this hook can |
| 703 | # be used to fix them up in the required manner. This is currently used |
| 704 | # by the MIPS backend to make sure all line addresses in compressed code |
| 705 | # are presented with the ISA bit set, which is not always the case. This |
| 706 | # in turn ensures breakpoint addresses are correctly matched against the |
| 707 | # stop PC. |
| 708 | f;CORE_ADDR;adjust_dwarf2_line;CORE_ADDR addr, int rel;addr, rel;;default_adjust_dwarf2_line;;0 |
| 709 | v;int;cannot_step_breakpoint;;;0;0;;0 |
| 710 | v;int;have_nonsteppable_watchpoint;;;0;0;;0 |
| 711 | F;int;address_class_type_flags;int byte_size, int dwarf2_addr_class;byte_size, dwarf2_addr_class |
| 712 | M;const char *;address_class_type_flags_to_name;int type_flags;type_flags |
| 713 | # Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction. |
| 714 | # FS are passed from the generic execute_cfa_program function. |
| 715 | m;bool;execute_dwarf_cfa_vendor_op;gdb_byte op, struct dwarf2_frame_state *fs;op, fs;;default_execute_dwarf_cfa_vendor_op;;0 |
| 716 | |
| 717 | # Return the appropriate type_flags for the supplied address class. |
| 718 | # This function should return 1 if the address class was recognized and |
| 719 | # type_flags was set, zero otherwise. |
| 720 | M;int;address_class_name_to_type_flags;const char *name, int *type_flags_ptr;name, type_flags_ptr |
| 721 | # Is a register in a group |
| 722 | m;int;register_reggroup_p;int regnum, struct reggroup *reggroup;regnum, reggroup;;default_register_reggroup_p;;0 |
| 723 | # Fetch the pointer to the ith function argument. |
| 724 | F;CORE_ADDR;fetch_pointer_argument;struct frame_info *frame, int argi, struct type *type;frame, argi, type |
| 725 | |
| 726 | # Iterate over all supported register notes in a core file. For each |
| 727 | # supported register note section, the iterator must call CB and pass |
| 728 | # CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit |
| 729 | # the supported register note sections based on the current register |
| 730 | # values. Otherwise it should enumerate all supported register note |
| 731 | # sections. |
| 732 | M;void;iterate_over_regset_sections;iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache;cb, cb_data, regcache |
| 733 | |
| 734 | # Create core file notes |
| 735 | M;char *;make_corefile_notes;bfd *obfd, int *note_size;obfd, note_size |
| 736 | |
| 737 | # Find core file memory regions |
| 738 | M;int;find_memory_regions;find_memory_region_ftype func, void *data;func, data |
| 739 | |
| 740 | # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from |
| 741 | # core file into buffer READBUF with length LEN. Return the number of bytes read |
| 742 | # (zero indicates failure). |
| 743 | # failed, otherwise, return the red length of READBUF. |
| 744 | M;ULONGEST;core_xfer_shared_libraries;gdb_byte *readbuf, ULONGEST offset, ULONGEST len;readbuf, offset, len |
| 745 | |
| 746 | # Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared |
| 747 | # libraries list from core file into buffer READBUF with length LEN. |
| 748 | # Return the number of bytes read (zero indicates failure). |
| 749 | M;ULONGEST;core_xfer_shared_libraries_aix;gdb_byte *readbuf, ULONGEST offset, ULONGEST len;readbuf, offset, len |
| 750 | |
| 751 | # How the core target converts a PTID from a core file to a string. |
| 752 | M;const char *;core_pid_to_str;ptid_t ptid;ptid |
| 753 | |
| 754 | # How the core target extracts the name of a thread from a core file. |
| 755 | M;const char *;core_thread_name;struct thread_info *thr;thr |
| 756 | |
| 757 | # Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information |
| 758 | # from core file into buffer READBUF with length LEN. Return the number |
| 759 | # of bytes read (zero indicates EOF, a negative value indicates failure). |
| 760 | M;LONGEST;core_xfer_siginfo;gdb_byte *readbuf, ULONGEST offset, ULONGEST len; readbuf, offset, len |
| 761 | |
| 762 | # BFD target to use when generating a core file. |
| 763 | V;const char *;gcore_bfd_target;;;0;0;;;pstring (gdbarch->gcore_bfd_target) |
| 764 | |
| 765 | # If the elements of C++ vtables are in-place function descriptors rather |
| 766 | # than normal function pointers (which may point to code or a descriptor), |
| 767 | # set this to one. |
| 768 | v;int;vtable_function_descriptors;;;0;0;;0 |
| 769 | |
| 770 | # Set if the least significant bit of the delta is used instead of the least |
| 771 | # significant bit of the pfn for pointers to virtual member functions. |
| 772 | v;int;vbit_in_delta;;;0;0;;0 |
| 773 | |
| 774 | # Advance PC to next instruction in order to skip a permanent breakpoint. |
| 775 | f;void;skip_permanent_breakpoint;struct regcache *regcache;regcache;default_skip_permanent_breakpoint;default_skip_permanent_breakpoint;;0 |
| 776 | |
| 777 | # The maximum length of an instruction on this architecture in bytes. |
| 778 | V;ULONGEST;max_insn_length;;;0;0 |
| 779 | |
| 780 | # Copy the instruction at FROM to TO, and make any adjustments |
| 781 | # necessary to single-step it at that address. |
| 782 | # |
| 783 | # REGS holds the state the thread's registers will have before |
| 784 | # executing the copied instruction; the PC in REGS will refer to FROM, |
| 785 | # not the copy at TO. The caller should update it to point at TO later. |
| 786 | # |
| 787 | # Return a pointer to data of the architecture's choice to be passed |
| 788 | # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that |
| 789 | # the instruction's effects have been completely simulated, with the |
| 790 | # resulting state written back to REGS. |
| 791 | # |
| 792 | # For a general explanation of displaced stepping and how GDB uses it, |
| 793 | # see the comments in infrun.c. |
| 794 | # |
| 795 | # The TO area is only guaranteed to have space for |
| 796 | # gdbarch_max_insn_length (arch) bytes, so this function must not |
| 797 | # write more bytes than that to that area. |
| 798 | # |
| 799 | # If you do not provide this function, GDB assumes that the |
| 800 | # architecture does not support displaced stepping. |
| 801 | # |
| 802 | # If the instruction cannot execute out of line, return NULL. The |
| 803 | # core falls back to stepping past the instruction in-line instead in |
| 804 | # that case. |
| 805 | M;struct displaced_step_closure *;displaced_step_copy_insn;CORE_ADDR from, CORE_ADDR to, struct regcache *regs;from, to, regs |
| 806 | |
| 807 | # Return true if GDB should use hardware single-stepping to execute |
| 808 | # the displaced instruction identified by CLOSURE. If false, |
| 809 | # GDB will simply restart execution at the displaced instruction |
| 810 | # location, and it is up to the target to ensure GDB will receive |
| 811 | # control again (e.g. by placing a software breakpoint instruction |
| 812 | # into the displaced instruction buffer). |
| 813 | # |
| 814 | # The default implementation returns false on all targets that |
| 815 | # provide a gdbarch_software_single_step routine, and true otherwise. |
| 816 | m;int;displaced_step_hw_singlestep;struct displaced_step_closure *closure;closure;;default_displaced_step_hw_singlestep;;0 |
| 817 | |
| 818 | # Fix up the state resulting from successfully single-stepping a |
| 819 | # displaced instruction, to give the result we would have gotten from |
| 820 | # stepping the instruction in its original location. |
| 821 | # |
| 822 | # REGS is the register state resulting from single-stepping the |
| 823 | # displaced instruction. |
| 824 | # |
| 825 | # CLOSURE is the result from the matching call to |
| 826 | # gdbarch_displaced_step_copy_insn. |
| 827 | # |
| 828 | # If you provide gdbarch_displaced_step_copy_insn.but not this |
| 829 | # function, then GDB assumes that no fixup is needed after |
| 830 | # single-stepping the instruction. |
| 831 | # |
| 832 | # For a general explanation of displaced stepping and how GDB uses it, |
| 833 | # see the comments in infrun.c. |
| 834 | M;void;displaced_step_fixup;struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs;closure, from, to, regs;;NULL |
| 835 | |
| 836 | # Return the address of an appropriate place to put displaced |
| 837 | # instructions while we step over them. There need only be one such |
| 838 | # place, since we're only stepping one thread over a breakpoint at a |
| 839 | # time. |
| 840 | # |
| 841 | # For a general explanation of displaced stepping and how GDB uses it, |
| 842 | # see the comments in infrun.c. |
| 843 | m;CORE_ADDR;displaced_step_location;void;;;NULL;;(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn) |
| 844 | |
| 845 | # Relocate an instruction to execute at a different address. OLDLOC |
| 846 | # is the address in the inferior memory where the instruction to |
| 847 | # relocate is currently at. On input, TO points to the destination |
| 848 | # where we want the instruction to be copied (and possibly adjusted) |
| 849 | # to. On output, it points to one past the end of the resulting |
| 850 | # instruction(s). The effect of executing the instruction at TO shall |
| 851 | # be the same as if executing it at FROM. For example, call |
| 852 | # instructions that implicitly push the return address on the stack |
| 853 | # should be adjusted to return to the instruction after OLDLOC; |
| 854 | # relative branches, and other PC-relative instructions need the |
| 855 | # offset adjusted; etc. |
| 856 | M;void;relocate_instruction;CORE_ADDR *to, CORE_ADDR from;to, from;;NULL |
| 857 | |
| 858 | # Refresh overlay mapped state for section OSECT. |
| 859 | F;void;overlay_update;struct obj_section *osect;osect |
| 860 | |
| 861 | M;const struct target_desc *;core_read_description;struct target_ops *target, bfd *abfd;target, abfd |
| 862 | |
| 863 | # Handle special encoding of static variables in stabs debug info. |
| 864 | F;const char *;static_transform_name;const char *name;name |
| 865 | # Set if the address in N_SO or N_FUN stabs may be zero. |
| 866 | v;int;sofun_address_maybe_missing;;;0;0;;0 |
| 867 | |
| 868 | # Parse the instruction at ADDR storing in the record execution log |
| 869 | # the registers REGCACHE and memory ranges that will be affected when |
| 870 | # the instruction executes, along with their current values. |
| 871 | # Return -1 if something goes wrong, 0 otherwise. |
| 872 | M;int;process_record;struct regcache *regcache, CORE_ADDR addr;regcache, addr |
| 873 | |
| 874 | # Save process state after a signal. |
| 875 | # Return -1 if something goes wrong, 0 otherwise. |
| 876 | M;int;process_record_signal;struct regcache *regcache, enum gdb_signal signal;regcache, signal |
| 877 | |
| 878 | # Signal translation: translate inferior's signal (target's) number |
| 879 | # into GDB's representation. The implementation of this method must |
| 880 | # be host independent. IOW, don't rely on symbols of the NAT_FILE |
| 881 | # header (the nm-*.h files), the host <signal.h> header, or similar |
| 882 | # headers. This is mainly used when cross-debugging core files --- |
| 883 | # "Live" targets hide the translation behind the target interface |
| 884 | # (target_wait, target_resume, etc.). |
| 885 | M;enum gdb_signal;gdb_signal_from_target;int signo;signo |
| 886 | |
| 887 | # Signal translation: translate the GDB's internal signal number into |
| 888 | # the inferior's signal (target's) representation. The implementation |
| 889 | # of this method must be host independent. IOW, don't rely on symbols |
| 890 | # of the NAT_FILE header (the nm-*.h files), the host <signal.h> |
| 891 | # header, or similar headers. |
| 892 | # Return the target signal number if found, or -1 if the GDB internal |
| 893 | # signal number is invalid. |
| 894 | M;int;gdb_signal_to_target;enum gdb_signal signal;signal |
| 895 | |
| 896 | # Extra signal info inspection. |
| 897 | # |
| 898 | # Return a type suitable to inspect extra signal information. |
| 899 | M;struct type *;get_siginfo_type;void; |
| 900 | |
| 901 | # Record architecture-specific information from the symbol table. |
| 902 | M;void;record_special_symbol;struct objfile *objfile, asymbol *sym;objfile, sym |
| 903 | |
| 904 | # Function for the 'catch syscall' feature. |
| 905 | |
| 906 | # Get architecture-specific system calls information from registers. |
| 907 | M;LONGEST;get_syscall_number;ptid_t ptid;ptid |
| 908 | |
| 909 | # The filename of the XML syscall for this architecture. |
| 910 | v;const char *;xml_syscall_file;;;0;0;;0;pstring (gdbarch->xml_syscall_file) |
| 911 | |
| 912 | # Information about system calls from this architecture |
| 913 | v;struct syscalls_info *;syscalls_info;;;0;0;;0;host_address_to_string (gdbarch->syscalls_info) |
| 914 | |
| 915 | # SystemTap related fields and functions. |
| 916 | |
| 917 | # A NULL-terminated array of prefixes used to mark an integer constant |
| 918 | # on the architecture's assembly. |
| 919 | # For example, on x86 integer constants are written as: |
| 920 | # |
| 921 | # \$10 ;; integer constant 10 |
| 922 | # |
| 923 | # in this case, this prefix would be the character \`\$\'. |
| 924 | v;const char *const *;stap_integer_prefixes;;;0;0;;0;pstring_list (gdbarch->stap_integer_prefixes) |
| 925 | |
| 926 | # A NULL-terminated array of suffixes used to mark an integer constant |
| 927 | # on the architecture's assembly. |
| 928 | v;const char *const *;stap_integer_suffixes;;;0;0;;0;pstring_list (gdbarch->stap_integer_suffixes) |
| 929 | |
| 930 | # A NULL-terminated array of prefixes used to mark a register name on |
| 931 | # the architecture's assembly. |
| 932 | # For example, on x86 the register name is written as: |
| 933 | # |
| 934 | # \%eax ;; register eax |
| 935 | # |
| 936 | # in this case, this prefix would be the character \`\%\'. |
| 937 | v;const char *const *;stap_register_prefixes;;;0;0;;0;pstring_list (gdbarch->stap_register_prefixes) |
| 938 | |
| 939 | # A NULL-terminated array of suffixes used to mark a register name on |
| 940 | # the architecture's assembly. |
| 941 | v;const char *const *;stap_register_suffixes;;;0;0;;0;pstring_list (gdbarch->stap_register_suffixes) |
| 942 | |
| 943 | # A NULL-terminated array of prefixes used to mark a register |
| 944 | # indirection on the architecture's assembly. |
| 945 | # For example, on x86 the register indirection is written as: |
| 946 | # |
| 947 | # \(\%eax\) ;; indirecting eax |
| 948 | # |
| 949 | # in this case, this prefix would be the charater \`\(\'. |
| 950 | # |
| 951 | # Please note that we use the indirection prefix also for register |
| 952 | # displacement, e.g., \`4\(\%eax\)\' on x86. |
| 953 | v;const char *const *;stap_register_indirection_prefixes;;;0;0;;0;pstring_list (gdbarch->stap_register_indirection_prefixes) |
| 954 | |
| 955 | # A NULL-terminated array of suffixes used to mark a register |
| 956 | # indirection on the architecture's assembly. |
| 957 | # For example, on x86 the register indirection is written as: |
| 958 | # |
| 959 | # \(\%eax\) ;; indirecting eax |
| 960 | # |
| 961 | # in this case, this prefix would be the charater \`\)\'. |
| 962 | # |
| 963 | # Please note that we use the indirection suffix also for register |
| 964 | # displacement, e.g., \`4\(\%eax\)\' on x86. |
| 965 | v;const char *const *;stap_register_indirection_suffixes;;;0;0;;0;pstring_list (gdbarch->stap_register_indirection_suffixes) |
| 966 | |
| 967 | # Prefix(es) used to name a register using GDB's nomenclature. |
| 968 | # |
| 969 | # For example, on PPC a register is represented by a number in the assembly |
| 970 | # language (e.g., \`10\' is the 10th general-purpose register). However, |
| 971 | # inside GDB this same register has an \`r\' appended to its name, so the 10th |
| 972 | # register would be represented as \`r10\' internally. |
| 973 | v;const char *;stap_gdb_register_prefix;;;0;0;;0;pstring (gdbarch->stap_gdb_register_prefix) |
| 974 | |
| 975 | # Suffix used to name a register using GDB's nomenclature. |
| 976 | v;const char *;stap_gdb_register_suffix;;;0;0;;0;pstring (gdbarch->stap_gdb_register_suffix) |
| 977 | |
| 978 | # Check if S is a single operand. |
| 979 | # |
| 980 | # Single operands can be: |
| 981 | # \- Literal integers, e.g. \`\$10\' on x86 |
| 982 | # \- Register access, e.g. \`\%eax\' on x86 |
| 983 | # \- Register indirection, e.g. \`\(\%eax\)\' on x86 |
| 984 | # \- Register displacement, e.g. \`4\(\%eax\)\' on x86 |
| 985 | # |
| 986 | # This function should check for these patterns on the string |
| 987 | # and return 1 if some were found, or zero otherwise. Please try to match |
| 988 | # as much info as you can from the string, i.e., if you have to match |
| 989 | # something like \`\(\%\', do not match just the \`\(\'. |
| 990 | M;int;stap_is_single_operand;const char *s;s |
| 991 | |
| 992 | # Function used to handle a "special case" in the parser. |
| 993 | # |
| 994 | # A "special case" is considered to be an unknown token, i.e., a token |
| 995 | # that the parser does not know how to parse. A good example of special |
| 996 | # case would be ARM's register displacement syntax: |
| 997 | # |
| 998 | # [R0, #4] ;; displacing R0 by 4 |
| 999 | # |
| 1000 | # Since the parser assumes that a register displacement is of the form: |
| 1001 | # |
| 1002 | # <number> <indirection_prefix> <register_name> <indirection_suffix> |
| 1003 | # |
| 1004 | # it means that it will not be able to recognize and parse this odd syntax. |
| 1005 | # Therefore, we should add a special case function that will handle this token. |
| 1006 | # |
| 1007 | # This function should generate the proper expression form of the expression |
| 1008 | # using GDB\'s internal expression mechanism (e.g., \`write_exp_elt_opcode\' |
| 1009 | # and so on). It should also return 1 if the parsing was successful, or zero |
| 1010 | # if the token was not recognized as a special token (in this case, returning |
| 1011 | # zero means that the special parser is deferring the parsing to the generic |
| 1012 | # parser), and should advance the buffer pointer (p->arg). |
| 1013 | M;int;stap_parse_special_token;struct stap_parse_info *p;p |
| 1014 | |
| 1015 | # DTrace related functions. |
| 1016 | |
| 1017 | # The expression to compute the NARTGth+1 argument to a DTrace USDT probe. |
| 1018 | # NARG must be >= 0. |
| 1019 | M;void;dtrace_parse_probe_argument;struct parser_state *pstate, int narg;pstate, narg |
| 1020 | |
| 1021 | # True if the given ADDR does not contain the instruction sequence |
| 1022 | # corresponding to a disabled DTrace is-enabled probe. |
| 1023 | M;int;dtrace_probe_is_enabled;CORE_ADDR addr;addr |
| 1024 | |
| 1025 | # Enable a DTrace is-enabled probe at ADDR. |
| 1026 | M;void;dtrace_enable_probe;CORE_ADDR addr;addr |
| 1027 | |
| 1028 | # Disable a DTrace is-enabled probe at ADDR. |
| 1029 | M;void;dtrace_disable_probe;CORE_ADDR addr;addr |
| 1030 | |
| 1031 | # True if the list of shared libraries is one and only for all |
| 1032 | # processes, as opposed to a list of shared libraries per inferior. |
| 1033 | # This usually means that all processes, although may or may not share |
| 1034 | # an address space, will see the same set of symbols at the same |
| 1035 | # addresses. |
| 1036 | v;int;has_global_solist;;;0;0;;0 |
| 1037 | |
| 1038 | # On some targets, even though each inferior has its own private |
| 1039 | # address space, the debug interface takes care of making breakpoints |
| 1040 | # visible to all address spaces automatically. For such cases, |
| 1041 | # this property should be set to true. |
| 1042 | v;int;has_global_breakpoints;;;0;0;;0 |
| 1043 | |
| 1044 | # True if inferiors share an address space (e.g., uClinux). |
| 1045 | m;int;has_shared_address_space;void;;;default_has_shared_address_space;;0 |
| 1046 | |
| 1047 | # True if a fast tracepoint can be set at an address. |
| 1048 | m;int;fast_tracepoint_valid_at;CORE_ADDR addr, std::string *msg;addr, msg;;default_fast_tracepoint_valid_at;;0 |
| 1049 | |
| 1050 | # Guess register state based on tracepoint location. Used for tracepoints |
| 1051 | # where no registers have been collected, but there's only one location, |
| 1052 | # allowing us to guess the PC value, and perhaps some other registers. |
| 1053 | # On entry, regcache has all registers marked as unavailable. |
| 1054 | m;void;guess_tracepoint_registers;struct regcache *regcache, CORE_ADDR addr;regcache, addr;;default_guess_tracepoint_registers;;0 |
| 1055 | |
| 1056 | # Return the "auto" target charset. |
| 1057 | f;const char *;auto_charset;void;;default_auto_charset;default_auto_charset;;0 |
| 1058 | # Return the "auto" target wide charset. |
| 1059 | f;const char *;auto_wide_charset;void;;default_auto_wide_charset;default_auto_wide_charset;;0 |
| 1060 | |
| 1061 | # If non-empty, this is a file extension that will be opened in place |
| 1062 | # of the file extension reported by the shared library list. |
| 1063 | # |
| 1064 | # This is most useful for toolchains that use a post-linker tool, |
| 1065 | # where the names of the files run on the target differ in extension |
| 1066 | # compared to the names of the files GDB should load for debug info. |
| 1067 | v;const char *;solib_symbols_extension;;;;;;;pstring (gdbarch->solib_symbols_extension) |
| 1068 | |
| 1069 | # If true, the target OS has DOS-based file system semantics. That |
| 1070 | # is, absolute paths include a drive name, and the backslash is |
| 1071 | # considered a directory separator. |
| 1072 | v;int;has_dos_based_file_system;;;0;0;;0 |
| 1073 | |
| 1074 | # Generate bytecodes to collect the return address in a frame. |
| 1075 | # Since the bytecodes run on the target, possibly with GDB not even |
| 1076 | # connected, the full unwinding machinery is not available, and |
| 1077 | # typically this function will issue bytecodes for one or more likely |
| 1078 | # places that the return address may be found. |
| 1079 | m;void;gen_return_address;struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope;ax, value, scope;;default_gen_return_address;;0 |
| 1080 | |
| 1081 | # Implement the "info proc" command. |
| 1082 | M;void;info_proc;const char *args, enum info_proc_what what;args, what |
| 1083 | |
| 1084 | # Implement the "info proc" command for core files. Noe that there |
| 1085 | # are two "info_proc"-like methods on gdbarch -- one for core files, |
| 1086 | # one for live targets. |
| 1087 | M;void;core_info_proc;const char *args, enum info_proc_what what;args, what |
| 1088 | |
| 1089 | # Iterate over all objfiles in the order that makes the most sense |
| 1090 | # for the architecture to make global symbol searches. |
| 1091 | # |
| 1092 | # CB is a callback function where OBJFILE is the objfile to be searched, |
| 1093 | # and CB_DATA a pointer to user-defined data (the same data that is passed |
| 1094 | # when calling this gdbarch method). The iteration stops if this function |
| 1095 | # returns nonzero. |
| 1096 | # |
| 1097 | # CB_DATA is a pointer to some user-defined data to be passed to |
| 1098 | # the callback. |
| 1099 | # |
| 1100 | # If not NULL, CURRENT_OBJFILE corresponds to the objfile being |
| 1101 | # inspected when the symbol search was requested. |
| 1102 | 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 |
| 1103 | |
| 1104 | # Ravenscar arch-dependent ops. |
| 1105 | v;struct ravenscar_arch_ops *;ravenscar_ops;;;NULL;NULL;;0;host_address_to_string (gdbarch->ravenscar_ops) |
| 1106 | |
| 1107 | # Return non-zero if the instruction at ADDR is a call; zero otherwise. |
| 1108 | m;int;insn_is_call;CORE_ADDR addr;addr;;default_insn_is_call;;0 |
| 1109 | |
| 1110 | # Return non-zero if the instruction at ADDR is a return; zero otherwise. |
| 1111 | m;int;insn_is_ret;CORE_ADDR addr;addr;;default_insn_is_ret;;0 |
| 1112 | |
| 1113 | # Return non-zero if the instruction at ADDR is a jump; zero otherwise. |
| 1114 | m;int;insn_is_jump;CORE_ADDR addr;addr;;default_insn_is_jump;;0 |
| 1115 | |
| 1116 | # Read one auxv entry from *READPTR, not reading locations >= ENDPTR. |
| 1117 | # Return 0 if *READPTR is already at the end of the buffer. |
| 1118 | # Return -1 if there is insufficient buffer for a whole entry. |
| 1119 | # Return 1 if an entry was read into *TYPEP and *VALP. |
| 1120 | M;int;auxv_parse;gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp;readptr, endptr, typep, valp |
| 1121 | |
| 1122 | # Print the description of a single auxv entry described by TYPE and VAL |
| 1123 | # to FILE. |
| 1124 | m;void;print_auxv_entry;struct ui_file *file, CORE_ADDR type, CORE_ADDR val;file, type, val;;default_print_auxv_entry;;0 |
| 1125 | |
| 1126 | # Find the address range of the current inferior's vsyscall/vDSO, and |
| 1127 | # write it to *RANGE. If the vsyscall's length can't be determined, a |
| 1128 | # range with zero length is returned. Returns true if the vsyscall is |
| 1129 | # found, false otherwise. |
| 1130 | m;int;vsyscall_range;struct mem_range *range;range;;default_vsyscall_range;;0 |
| 1131 | |
| 1132 | # Allocate SIZE bytes of PROT protected page aligned memory in inferior. |
| 1133 | # PROT has GDB_MMAP_PROT_* bitmask format. |
| 1134 | # Throw an error if it is not possible. Returned address is always valid. |
| 1135 | f;CORE_ADDR;infcall_mmap;CORE_ADDR size, unsigned prot;size, prot;;default_infcall_mmap;;0 |
| 1136 | |
| 1137 | # Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap. |
| 1138 | # Print a warning if it is not possible. |
| 1139 | f;void;infcall_munmap;CORE_ADDR addr, CORE_ADDR size;addr, size;;default_infcall_munmap;;0 |
| 1140 | |
| 1141 | # Return string (caller has to use xfree for it) with options for GCC |
| 1142 | # to produce code for this target, typically "-m64", "-m32" or "-m31". |
| 1143 | # These options are put before CU's DW_AT_producer compilation options so that |
| 1144 | # they can override it. Method may also return NULL. |
| 1145 | m;char *;gcc_target_options;void;;;default_gcc_target_options;;0 |
| 1146 | |
| 1147 | # Return a regular expression that matches names used by this |
| 1148 | # architecture in GNU configury triplets. The result is statically |
| 1149 | # allocated and must not be freed. The default implementation simply |
| 1150 | # returns the BFD architecture name, which is correct in nearly every |
| 1151 | # case. |
| 1152 | m;const char *;gnu_triplet_regexp;void;;;default_gnu_triplet_regexp;;0 |
| 1153 | |
| 1154 | # Return the size in 8-bit bytes of an addressable memory unit on this |
| 1155 | # architecture. This corresponds to the number of 8-bit bytes associated to |
| 1156 | # each address in memory. |
| 1157 | m;int;addressable_memory_unit_size;void;;;default_addressable_memory_unit_size;;0 |
| 1158 | |
| 1159 | # Functions for allowing a target to modify its disassembler options. |
| 1160 | v;char **;disassembler_options;;;0;0;;0;pstring_ptr (gdbarch->disassembler_options) |
| 1161 | v;const disasm_options_t *;valid_disassembler_options;;;0;0;;0;host_address_to_string (gdbarch->valid_disassembler_options) |
| 1162 | |
| 1163 | # Type alignment. |
| 1164 | m;ULONGEST;type_align;struct type *type;type;;default_type_align;;0 |
| 1165 | |
| 1166 | EOF |
| 1167 | } |
| 1168 | |
| 1169 | # |
| 1170 | # The .log file |
| 1171 | # |
| 1172 | exec > new-gdbarch.log |
| 1173 | function_list | while do_read |
| 1174 | do |
| 1175 | cat <<EOF |
| 1176 | ${class} ${returntype} ${function} ($formal) |
| 1177 | EOF |
| 1178 | for r in ${read} |
| 1179 | do |
| 1180 | eval echo \"\ \ \ \ ${r}=\${${r}}\" |
| 1181 | done |
| 1182 | if class_is_predicate_p && fallback_default_p |
| 1183 | then |
| 1184 | echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2 |
| 1185 | kill $$ |
| 1186 | exit 1 |
| 1187 | fi |
| 1188 | if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ] |
| 1189 | then |
| 1190 | echo "Error: postdefault is useless when invalid_p=0" 1>&2 |
| 1191 | kill $$ |
| 1192 | exit 1 |
| 1193 | fi |
| 1194 | if class_is_multiarch_p |
| 1195 | then |
| 1196 | if class_is_predicate_p ; then : |
| 1197 | elif test "x${predefault}" = "x" |
| 1198 | then |
| 1199 | echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2 |
| 1200 | kill $$ |
| 1201 | exit 1 |
| 1202 | fi |
| 1203 | fi |
| 1204 | echo "" |
| 1205 | done |
| 1206 | |
| 1207 | exec 1>&2 |
| 1208 | compare_new gdbarch.log |
| 1209 | |
| 1210 | |
| 1211 | copyright () |
| 1212 | { |
| 1213 | cat <<EOF |
| 1214 | /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */ |
| 1215 | /* vi:set ro: */ |
| 1216 | |
| 1217 | /* Dynamic architecture support for GDB, the GNU debugger. |
| 1218 | |
| 1219 | Copyright (C) 1998-2018 Free Software Foundation, Inc. |
| 1220 | |
| 1221 | This file is part of GDB. |
| 1222 | |
| 1223 | This program is free software; you can redistribute it and/or modify |
| 1224 | it under the terms of the GNU General Public License as published by |
| 1225 | the Free Software Foundation; either version 3 of the License, or |
| 1226 | (at your option) any later version. |
| 1227 | |
| 1228 | This program is distributed in the hope that it will be useful, |
| 1229 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 1230 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 1231 | GNU General Public License for more details. |
| 1232 | |
| 1233 | You should have received a copy of the GNU General Public License |
| 1234 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 1235 | |
| 1236 | /* This file was created with the aid of \`\`gdbarch.sh''. |
| 1237 | |
| 1238 | The Bourne shell script \`\`gdbarch.sh'' creates the files |
| 1239 | \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them |
| 1240 | against the existing \`\`gdbarch.[hc]''. Any differences found |
| 1241 | being reported. |
| 1242 | |
| 1243 | If editing this file, please also run gdbarch.sh and merge any |
| 1244 | changes into that script. Conversely, when making sweeping changes |
| 1245 | to this file, modifying gdbarch.sh and using its output may prove |
| 1246 | easier. */ |
| 1247 | |
| 1248 | EOF |
| 1249 | } |
| 1250 | |
| 1251 | # |
| 1252 | # The .h file |
| 1253 | # |
| 1254 | |
| 1255 | exec > new-gdbarch.h |
| 1256 | copyright |
| 1257 | cat <<EOF |
| 1258 | #ifndef GDBARCH_H |
| 1259 | #define GDBARCH_H |
| 1260 | |
| 1261 | #include <vector> |
| 1262 | #include "frame.h" |
| 1263 | #include "dis-asm.h" |
| 1264 | |
| 1265 | struct floatformat; |
| 1266 | struct ui_file; |
| 1267 | struct value; |
| 1268 | struct objfile; |
| 1269 | struct obj_section; |
| 1270 | struct minimal_symbol; |
| 1271 | struct regcache; |
| 1272 | struct reggroup; |
| 1273 | struct regset; |
| 1274 | struct disassemble_info; |
| 1275 | struct target_ops; |
| 1276 | struct obstack; |
| 1277 | struct bp_target_info; |
| 1278 | struct target_desc; |
| 1279 | struct symbol; |
| 1280 | struct displaced_step_closure; |
| 1281 | struct syscall; |
| 1282 | struct agent_expr; |
| 1283 | struct axs_value; |
| 1284 | struct stap_parse_info; |
| 1285 | struct parser_state; |
| 1286 | struct ravenscar_arch_ops; |
| 1287 | struct mem_range; |
| 1288 | struct syscalls_info; |
| 1289 | struct thread_info; |
| 1290 | struct ui_out; |
| 1291 | |
| 1292 | #include "regcache.h" |
| 1293 | |
| 1294 | /* The architecture associated with the inferior through the |
| 1295 | connection to the target. |
| 1296 | |
| 1297 | The architecture vector provides some information that is really a |
| 1298 | property of the inferior, accessed through a particular target: |
| 1299 | ptrace operations; the layout of certain RSP packets; the solib_ops |
| 1300 | vector; etc. To differentiate architecture accesses to |
| 1301 | per-inferior/target properties from |
| 1302 | per-thread/per-frame/per-objfile properties, accesses to |
| 1303 | per-inferior/target properties should be made through this |
| 1304 | gdbarch. */ |
| 1305 | |
| 1306 | /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */ |
| 1307 | extern struct gdbarch *target_gdbarch (void); |
| 1308 | |
| 1309 | /* Callback type for the 'iterate_over_objfiles_in_search_order' |
| 1310 | gdbarch method. */ |
| 1311 | |
| 1312 | typedef int (iterate_over_objfiles_in_search_order_cb_ftype) |
| 1313 | (struct objfile *objfile, void *cb_data); |
| 1314 | |
| 1315 | /* Callback type for regset section iterators. The callback usually |
| 1316 | invokes the REGSET's supply or collect method, to which it must |
| 1317 | pass a buffer with at least the given SIZE. SECT_NAME is a BFD |
| 1318 | section name, and HUMAN_NAME is used for diagnostic messages. |
| 1319 | CB_DATA should have been passed unchanged through the iterator. */ |
| 1320 | |
| 1321 | typedef void (iterate_over_regset_sections_cb) |
| 1322 | (const char *sect_name, int size, const struct regset *regset, |
| 1323 | const char *human_name, void *cb_data); |
| 1324 | EOF |
| 1325 | |
| 1326 | # function typedef's |
| 1327 | printf "\n" |
| 1328 | printf "\n" |
| 1329 | printf "/* The following are pre-initialized by GDBARCH. */\n" |
| 1330 | function_list | while do_read |
| 1331 | do |
| 1332 | if class_is_info_p |
| 1333 | then |
| 1334 | printf "\n" |
| 1335 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" |
| 1336 | printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n" |
| 1337 | fi |
| 1338 | done |
| 1339 | |
| 1340 | # function typedef's |
| 1341 | printf "\n" |
| 1342 | printf "\n" |
| 1343 | printf "/* The following are initialized by the target dependent code. */\n" |
| 1344 | function_list | while do_read |
| 1345 | do |
| 1346 | if [ -n "${comment}" ] |
| 1347 | then |
| 1348 | echo "${comment}" | sed \ |
| 1349 | -e '2 s,#,/*,' \ |
| 1350 | -e '3,$ s,#, ,' \ |
| 1351 | -e '$ s,$, */,' |
| 1352 | fi |
| 1353 | |
| 1354 | if class_is_predicate_p |
| 1355 | then |
| 1356 | printf "\n" |
| 1357 | printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n" |
| 1358 | fi |
| 1359 | if class_is_variable_p |
| 1360 | then |
| 1361 | printf "\n" |
| 1362 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" |
| 1363 | printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n" |
| 1364 | fi |
| 1365 | if class_is_function_p |
| 1366 | then |
| 1367 | printf "\n" |
| 1368 | if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p |
| 1369 | then |
| 1370 | printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n" |
| 1371 | elif class_is_multiarch_p |
| 1372 | then |
| 1373 | printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n" |
| 1374 | else |
| 1375 | printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n" |
| 1376 | fi |
| 1377 | if [ "x${formal}" = "xvoid" ] |
| 1378 | then |
| 1379 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" |
| 1380 | else |
| 1381 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n" |
| 1382 | fi |
| 1383 | printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n" |
| 1384 | fi |
| 1385 | done |
| 1386 | |
| 1387 | # close it off |
| 1388 | cat <<EOF |
| 1389 | |
| 1390 | /* Definition for an unknown syscall, used basically in error-cases. */ |
| 1391 | #define UNKNOWN_SYSCALL (-1) |
| 1392 | |
| 1393 | extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch); |
| 1394 | |
| 1395 | |
| 1396 | /* Mechanism for co-ordinating the selection of a specific |
| 1397 | architecture. |
| 1398 | |
| 1399 | GDB targets (*-tdep.c) can register an interest in a specific |
| 1400 | architecture. Other GDB components can register a need to maintain |
| 1401 | per-architecture data. |
| 1402 | |
| 1403 | The mechanisms below ensures that there is only a loose connection |
| 1404 | between the set-architecture command and the various GDB |
| 1405 | components. Each component can independently register their need |
| 1406 | to maintain architecture specific data with gdbarch. |
| 1407 | |
| 1408 | Pragmatics: |
| 1409 | |
| 1410 | Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It |
| 1411 | didn't scale. |
| 1412 | |
| 1413 | The more traditional mega-struct containing architecture specific |
| 1414 | data for all the various GDB components was also considered. Since |
| 1415 | GDB is built from a variable number of (fairly independent) |
| 1416 | components it was determined that the global aproach was not |
| 1417 | applicable. */ |
| 1418 | |
| 1419 | |
| 1420 | /* Register a new architectural family with GDB. |
| 1421 | |
| 1422 | Register support for the specified ARCHITECTURE with GDB. When |
| 1423 | gdbarch determines that the specified architecture has been |
| 1424 | selected, the corresponding INIT function is called. |
| 1425 | |
| 1426 | -- |
| 1427 | |
| 1428 | The INIT function takes two parameters: INFO which contains the |
| 1429 | information available to gdbarch about the (possibly new) |
| 1430 | architecture; ARCHES which is a list of the previously created |
| 1431 | \`\`struct gdbarch'' for this architecture. |
| 1432 | |
| 1433 | The INFO parameter is, as far as possible, be pre-initialized with |
| 1434 | information obtained from INFO.ABFD or the global defaults. |
| 1435 | |
| 1436 | The ARCHES parameter is a linked list (sorted most recently used) |
| 1437 | of all the previously created architures for this architecture |
| 1438 | family. The (possibly NULL) ARCHES->gdbarch can used to access |
| 1439 | values from the previously selected architecture for this |
| 1440 | architecture family. |
| 1441 | |
| 1442 | The INIT function shall return any of: NULL - indicating that it |
| 1443 | doesn't recognize the selected architecture; an existing \`\`struct |
| 1444 | gdbarch'' from the ARCHES list - indicating that the new |
| 1445 | architecture is just a synonym for an earlier architecture (see |
| 1446 | gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch'' |
| 1447 | - that describes the selected architecture (see gdbarch_alloc()). |
| 1448 | |
| 1449 | The DUMP_TDEP function shall print out all target specific values. |
| 1450 | Care should be taken to ensure that the function works in both the |
| 1451 | multi-arch and non- multi-arch cases. */ |
| 1452 | |
| 1453 | struct gdbarch_list |
| 1454 | { |
| 1455 | struct gdbarch *gdbarch; |
| 1456 | struct gdbarch_list *next; |
| 1457 | }; |
| 1458 | |
| 1459 | struct gdbarch_info |
| 1460 | { |
| 1461 | /* Use default: NULL (ZERO). */ |
| 1462 | const struct bfd_arch_info *bfd_arch_info; |
| 1463 | |
| 1464 | /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */ |
| 1465 | enum bfd_endian byte_order; |
| 1466 | |
| 1467 | enum bfd_endian byte_order_for_code; |
| 1468 | |
| 1469 | /* Use default: NULL (ZERO). */ |
| 1470 | bfd *abfd; |
| 1471 | |
| 1472 | /* Use default: NULL (ZERO). */ |
| 1473 | union |
| 1474 | { |
| 1475 | /* Architecture-specific information. The generic form for targets |
| 1476 | that have extra requirements. */ |
| 1477 | struct gdbarch_tdep_info *tdep_info; |
| 1478 | |
| 1479 | /* Architecture-specific target description data. Numerous targets |
| 1480 | need only this, so give them an easy way to hold it. */ |
| 1481 | struct tdesc_arch_data *tdesc_data; |
| 1482 | |
| 1483 | /* SPU file system ID. This is a single integer, so using the |
| 1484 | generic form would only complicate code. Other targets may |
| 1485 | reuse this member if suitable. */ |
| 1486 | int *id; |
| 1487 | }; |
| 1488 | |
| 1489 | /* Use default: GDB_OSABI_UNINITIALIZED (-1). */ |
| 1490 | enum gdb_osabi osabi; |
| 1491 | |
| 1492 | /* Use default: NULL (ZERO). */ |
| 1493 | const struct target_desc *target_desc; |
| 1494 | }; |
| 1495 | |
| 1496 | typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches); |
| 1497 | typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file); |
| 1498 | |
| 1499 | /* DEPRECATED - use gdbarch_register() */ |
| 1500 | extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *); |
| 1501 | |
| 1502 | extern void gdbarch_register (enum bfd_architecture architecture, |
| 1503 | gdbarch_init_ftype *, |
| 1504 | gdbarch_dump_tdep_ftype *); |
| 1505 | |
| 1506 | |
| 1507 | /* Return a freshly allocated, NULL terminated, array of the valid |
| 1508 | architecture names. Since architectures are registered during the |
| 1509 | _initialize phase this function only returns useful information |
| 1510 | once initialization has been completed. */ |
| 1511 | |
| 1512 | extern const char **gdbarch_printable_names (void); |
| 1513 | |
| 1514 | |
| 1515 | /* Helper function. Search the list of ARCHES for a GDBARCH that |
| 1516 | matches the information provided by INFO. */ |
| 1517 | |
| 1518 | extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info); |
| 1519 | |
| 1520 | |
| 1521 | /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform |
| 1522 | basic initialization using values obtained from the INFO and TDEP |
| 1523 | parameters. set_gdbarch_*() functions are called to complete the |
| 1524 | initialization of the object. */ |
| 1525 | |
| 1526 | extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep); |
| 1527 | |
| 1528 | |
| 1529 | /* Helper function. Free a partially-constructed \`\`struct gdbarch''. |
| 1530 | It is assumed that the caller freeds the \`\`struct |
| 1531 | gdbarch_tdep''. */ |
| 1532 | |
| 1533 | extern void gdbarch_free (struct gdbarch *); |
| 1534 | |
| 1535 | |
| 1536 | /* Helper function. Allocate memory from the \`\`struct gdbarch'' |
| 1537 | obstack. The memory is freed when the corresponding architecture |
| 1538 | is also freed. */ |
| 1539 | |
| 1540 | extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size); |
| 1541 | #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE))) |
| 1542 | #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE))) |
| 1543 | |
| 1544 | /* Duplicate STRING, returning an equivalent string that's allocated on the |
| 1545 | obstack associated with GDBARCH. The string is freed when the corresponding |
| 1546 | architecture is also freed. */ |
| 1547 | |
| 1548 | extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string); |
| 1549 | |
| 1550 | /* Helper function. Force an update of the current architecture. |
| 1551 | |
| 1552 | The actual architecture selected is determined by INFO, \`\`(gdb) set |
| 1553 | architecture'' et.al., the existing architecture and BFD's default |
| 1554 | architecture. INFO should be initialized to zero and then selected |
| 1555 | fields should be updated. |
| 1556 | |
| 1557 | Returns non-zero if the update succeeds. */ |
| 1558 | |
| 1559 | extern int gdbarch_update_p (struct gdbarch_info info); |
| 1560 | |
| 1561 | |
| 1562 | /* Helper function. Find an architecture matching info. |
| 1563 | |
| 1564 | INFO should be initialized using gdbarch_info_init, relevant fields |
| 1565 | set, and then finished using gdbarch_info_fill. |
| 1566 | |
| 1567 | Returns the corresponding architecture, or NULL if no matching |
| 1568 | architecture was found. */ |
| 1569 | |
| 1570 | extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info); |
| 1571 | |
| 1572 | |
| 1573 | /* Helper function. Set the target gdbarch to "gdbarch". */ |
| 1574 | |
| 1575 | extern void set_target_gdbarch (struct gdbarch *gdbarch); |
| 1576 | |
| 1577 | |
| 1578 | /* Register per-architecture data-pointer. |
| 1579 | |
| 1580 | Reserve space for a per-architecture data-pointer. An identifier |
| 1581 | for the reserved data-pointer is returned. That identifer should |
| 1582 | be saved in a local static variable. |
| 1583 | |
| 1584 | Memory for the per-architecture data shall be allocated using |
| 1585 | gdbarch_obstack_zalloc. That memory will be deleted when the |
| 1586 | corresponding architecture object is deleted. |
| 1587 | |
| 1588 | When a previously created architecture is re-selected, the |
| 1589 | per-architecture data-pointer for that previous architecture is |
| 1590 | restored. INIT() is not re-called. |
| 1591 | |
| 1592 | Multiple registrarants for any architecture are allowed (and |
| 1593 | strongly encouraged). */ |
| 1594 | |
| 1595 | struct gdbarch_data; |
| 1596 | |
| 1597 | typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack); |
| 1598 | extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init); |
| 1599 | typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch); |
| 1600 | extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init); |
| 1601 | extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch, |
| 1602 | struct gdbarch_data *data, |
| 1603 | void *pointer); |
| 1604 | |
| 1605 | extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *); |
| 1606 | |
| 1607 | |
| 1608 | /* Set the dynamic target-system-dependent parameters (architecture, |
| 1609 | byte-order, ...) using information found in the BFD. */ |
| 1610 | |
| 1611 | extern void set_gdbarch_from_file (bfd *); |
| 1612 | |
| 1613 | |
| 1614 | /* Initialize the current architecture to the "first" one we find on |
| 1615 | our list. */ |
| 1616 | |
| 1617 | extern void initialize_current_architecture (void); |
| 1618 | |
| 1619 | /* gdbarch trace variable */ |
| 1620 | extern unsigned int gdbarch_debug; |
| 1621 | |
| 1622 | extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file); |
| 1623 | |
| 1624 | #endif |
| 1625 | EOF |
| 1626 | exec 1>&2 |
| 1627 | #../move-if-change new-gdbarch.h gdbarch.h |
| 1628 | compare_new gdbarch.h |
| 1629 | |
| 1630 | |
| 1631 | # |
| 1632 | # C file |
| 1633 | # |
| 1634 | |
| 1635 | exec > new-gdbarch.c |
| 1636 | copyright |
| 1637 | cat <<EOF |
| 1638 | |
| 1639 | #include "defs.h" |
| 1640 | #include "arch-utils.h" |
| 1641 | |
| 1642 | #include "gdbcmd.h" |
| 1643 | #include "inferior.h" |
| 1644 | #include "symcat.h" |
| 1645 | |
| 1646 | #include "floatformat.h" |
| 1647 | #include "reggroups.h" |
| 1648 | #include "osabi.h" |
| 1649 | #include "gdb_obstack.h" |
| 1650 | #include "observable.h" |
| 1651 | #include "regcache.h" |
| 1652 | #include "objfiles.h" |
| 1653 | #include "auxv.h" |
| 1654 | |
| 1655 | /* Static function declarations */ |
| 1656 | |
| 1657 | static void alloc_gdbarch_data (struct gdbarch *); |
| 1658 | |
| 1659 | /* Non-zero if we want to trace architecture code. */ |
| 1660 | |
| 1661 | #ifndef GDBARCH_DEBUG |
| 1662 | #define GDBARCH_DEBUG 0 |
| 1663 | #endif |
| 1664 | unsigned int gdbarch_debug = GDBARCH_DEBUG; |
| 1665 | static void |
| 1666 | show_gdbarch_debug (struct ui_file *file, int from_tty, |
| 1667 | struct cmd_list_element *c, const char *value) |
| 1668 | { |
| 1669 | fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value); |
| 1670 | } |
| 1671 | |
| 1672 | static const char * |
| 1673 | pformat (const struct floatformat **format) |
| 1674 | { |
| 1675 | if (format == NULL) |
| 1676 | return "(null)"; |
| 1677 | else |
| 1678 | /* Just print out one of them - this is only for diagnostics. */ |
| 1679 | return format[0]->name; |
| 1680 | } |
| 1681 | |
| 1682 | static const char * |
| 1683 | pstring (const char *string) |
| 1684 | { |
| 1685 | if (string == NULL) |
| 1686 | return "(null)"; |
| 1687 | return string; |
| 1688 | } |
| 1689 | |
| 1690 | static const char * |
| 1691 | pstring_ptr (char **string) |
| 1692 | { |
| 1693 | if (string == NULL || *string == NULL) |
| 1694 | return "(null)"; |
| 1695 | return *string; |
| 1696 | } |
| 1697 | |
| 1698 | /* Helper function to print a list of strings, represented as "const |
| 1699 | char *const *". The list is printed comma-separated. */ |
| 1700 | |
| 1701 | static const char * |
| 1702 | pstring_list (const char *const *list) |
| 1703 | { |
| 1704 | static char ret[100]; |
| 1705 | const char *const *p; |
| 1706 | size_t offset = 0; |
| 1707 | |
| 1708 | if (list == NULL) |
| 1709 | return "(null)"; |
| 1710 | |
| 1711 | ret[0] = '\0'; |
| 1712 | for (p = list; *p != NULL && offset < sizeof (ret); ++p) |
| 1713 | { |
| 1714 | size_t s = xsnprintf (ret + offset, sizeof (ret) - offset, "%s, ", *p); |
| 1715 | offset += 2 + s; |
| 1716 | } |
| 1717 | |
| 1718 | if (offset > 0) |
| 1719 | { |
| 1720 | gdb_assert (offset - 2 < sizeof (ret)); |
| 1721 | ret[offset - 2] = '\0'; |
| 1722 | } |
| 1723 | |
| 1724 | return ret; |
| 1725 | } |
| 1726 | |
| 1727 | EOF |
| 1728 | |
| 1729 | # gdbarch open the gdbarch object |
| 1730 | printf "\n" |
| 1731 | printf "/* Maintain the struct gdbarch object. */\n" |
| 1732 | printf "\n" |
| 1733 | printf "struct gdbarch\n" |
| 1734 | printf "{\n" |
| 1735 | printf " /* Has this architecture been fully initialized? */\n" |
| 1736 | printf " int initialized_p;\n" |
| 1737 | printf "\n" |
| 1738 | printf " /* An obstack bound to the lifetime of the architecture. */\n" |
| 1739 | printf " struct obstack *obstack;\n" |
| 1740 | printf "\n" |
| 1741 | printf " /* basic architectural information. */\n" |
| 1742 | function_list | while do_read |
| 1743 | do |
| 1744 | if class_is_info_p |
| 1745 | then |
| 1746 | printf " ${returntype} ${function};\n" |
| 1747 | fi |
| 1748 | done |
| 1749 | printf "\n" |
| 1750 | printf " /* target specific vector. */\n" |
| 1751 | printf " struct gdbarch_tdep *tdep;\n" |
| 1752 | printf " gdbarch_dump_tdep_ftype *dump_tdep;\n" |
| 1753 | printf "\n" |
| 1754 | printf " /* per-architecture data-pointers. */\n" |
| 1755 | printf " unsigned nr_data;\n" |
| 1756 | printf " void **data;\n" |
| 1757 | printf "\n" |
| 1758 | cat <<EOF |
| 1759 | /* Multi-arch values. |
| 1760 | |
| 1761 | When extending this structure you must: |
| 1762 | |
| 1763 | Add the field below. |
| 1764 | |
| 1765 | Declare set/get functions and define the corresponding |
| 1766 | macro in gdbarch.h. |
| 1767 | |
| 1768 | gdbarch_alloc(): If zero/NULL is not a suitable default, |
| 1769 | initialize the new field. |
| 1770 | |
| 1771 | verify_gdbarch(): Confirm that the target updated the field |
| 1772 | correctly. |
| 1773 | |
| 1774 | gdbarch_dump(): Add a fprintf_unfiltered call so that the new |
| 1775 | field is dumped out |
| 1776 | |
| 1777 | get_gdbarch(): Implement the set/get functions (probably using |
| 1778 | the macro's as shortcuts). |
| 1779 | |
| 1780 | */ |
| 1781 | |
| 1782 | EOF |
| 1783 | function_list | while do_read |
| 1784 | do |
| 1785 | if class_is_variable_p |
| 1786 | then |
| 1787 | printf " ${returntype} ${function};\n" |
| 1788 | elif class_is_function_p |
| 1789 | then |
| 1790 | printf " gdbarch_${function}_ftype *${function};\n" |
| 1791 | fi |
| 1792 | done |
| 1793 | printf "};\n" |
| 1794 | |
| 1795 | # Create a new gdbarch struct |
| 1796 | cat <<EOF |
| 1797 | |
| 1798 | /* Create a new \`\`struct gdbarch'' based on information provided by |
| 1799 | \`\`struct gdbarch_info''. */ |
| 1800 | EOF |
| 1801 | printf "\n" |
| 1802 | cat <<EOF |
| 1803 | struct gdbarch * |
| 1804 | gdbarch_alloc (const struct gdbarch_info *info, |
| 1805 | struct gdbarch_tdep *tdep) |
| 1806 | { |
| 1807 | struct gdbarch *gdbarch; |
| 1808 | |
| 1809 | /* Create an obstack for allocating all the per-architecture memory, |
| 1810 | then use that to allocate the architecture vector. */ |
| 1811 | struct obstack *obstack = XNEW (struct obstack); |
| 1812 | obstack_init (obstack); |
| 1813 | gdbarch = XOBNEW (obstack, struct gdbarch); |
| 1814 | memset (gdbarch, 0, sizeof (*gdbarch)); |
| 1815 | gdbarch->obstack = obstack; |
| 1816 | |
| 1817 | alloc_gdbarch_data (gdbarch); |
| 1818 | |
| 1819 | gdbarch->tdep = tdep; |
| 1820 | EOF |
| 1821 | printf "\n" |
| 1822 | function_list | while do_read |
| 1823 | do |
| 1824 | if class_is_info_p |
| 1825 | then |
| 1826 | printf " gdbarch->${function} = info->${function};\n" |
| 1827 | fi |
| 1828 | done |
| 1829 | printf "\n" |
| 1830 | printf " /* Force the explicit initialization of these. */\n" |
| 1831 | function_list | while do_read |
| 1832 | do |
| 1833 | if class_is_function_p || class_is_variable_p |
| 1834 | then |
| 1835 | if [ -n "${predefault}" -a "x${predefault}" != "x0" ] |
| 1836 | then |
| 1837 | printf " gdbarch->${function} = ${predefault};\n" |
| 1838 | fi |
| 1839 | fi |
| 1840 | done |
| 1841 | cat <<EOF |
| 1842 | /* gdbarch_alloc() */ |
| 1843 | |
| 1844 | return gdbarch; |
| 1845 | } |
| 1846 | EOF |
| 1847 | |
| 1848 | # Free a gdbarch struct. |
| 1849 | printf "\n" |
| 1850 | printf "\n" |
| 1851 | cat <<EOF |
| 1852 | /* Allocate extra space using the per-architecture obstack. */ |
| 1853 | |
| 1854 | void * |
| 1855 | gdbarch_obstack_zalloc (struct gdbarch *arch, long size) |
| 1856 | { |
| 1857 | void *data = obstack_alloc (arch->obstack, size); |
| 1858 | |
| 1859 | memset (data, 0, size); |
| 1860 | return data; |
| 1861 | } |
| 1862 | |
| 1863 | /* See gdbarch.h. */ |
| 1864 | |
| 1865 | char * |
| 1866 | gdbarch_obstack_strdup (struct gdbarch *arch, const char *string) |
| 1867 | { |
| 1868 | return obstack_strdup (arch->obstack, string); |
| 1869 | } |
| 1870 | |
| 1871 | |
| 1872 | /* Free a gdbarch struct. This should never happen in normal |
| 1873 | operation --- once you've created a gdbarch, you keep it around. |
| 1874 | However, if an architecture's init function encounters an error |
| 1875 | building the structure, it may need to clean up a partially |
| 1876 | constructed gdbarch. */ |
| 1877 | |
| 1878 | void |
| 1879 | gdbarch_free (struct gdbarch *arch) |
| 1880 | { |
| 1881 | struct obstack *obstack; |
| 1882 | |
| 1883 | gdb_assert (arch != NULL); |
| 1884 | gdb_assert (!arch->initialized_p); |
| 1885 | obstack = arch->obstack; |
| 1886 | obstack_free (obstack, 0); /* Includes the ARCH. */ |
| 1887 | xfree (obstack); |
| 1888 | } |
| 1889 | EOF |
| 1890 | |
| 1891 | # verify a new architecture |
| 1892 | cat <<EOF |
| 1893 | |
| 1894 | |
| 1895 | /* Ensure that all values in a GDBARCH are reasonable. */ |
| 1896 | |
| 1897 | static void |
| 1898 | verify_gdbarch (struct gdbarch *gdbarch) |
| 1899 | { |
| 1900 | string_file log; |
| 1901 | |
| 1902 | /* fundamental */ |
| 1903 | if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN) |
| 1904 | log.puts ("\n\tbyte-order"); |
| 1905 | if (gdbarch->bfd_arch_info == NULL) |
| 1906 | log.puts ("\n\tbfd_arch_info"); |
| 1907 | /* Check those that need to be defined for the given multi-arch level. */ |
| 1908 | EOF |
| 1909 | function_list | while do_read |
| 1910 | do |
| 1911 | if class_is_function_p || class_is_variable_p |
| 1912 | then |
| 1913 | if [ "x${invalid_p}" = "x0" ] |
| 1914 | then |
| 1915 | printf " /* Skip verify of ${function}, invalid_p == 0 */\n" |
| 1916 | elif class_is_predicate_p |
| 1917 | then |
| 1918 | printf " /* Skip verify of ${function}, has predicate. */\n" |
| 1919 | # FIXME: See do_read for potential simplification |
| 1920 | elif [ -n "${invalid_p}" -a -n "${postdefault}" ] |
| 1921 | then |
| 1922 | printf " if (${invalid_p})\n" |
| 1923 | printf " gdbarch->${function} = ${postdefault};\n" |
| 1924 | elif [ -n "${predefault}" -a -n "${postdefault}" ] |
| 1925 | then |
| 1926 | printf " if (gdbarch->${function} == ${predefault})\n" |
| 1927 | printf " gdbarch->${function} = ${postdefault};\n" |
| 1928 | elif [ -n "${postdefault}" ] |
| 1929 | then |
| 1930 | printf " if (gdbarch->${function} == 0)\n" |
| 1931 | printf " gdbarch->${function} = ${postdefault};\n" |
| 1932 | elif [ -n "${invalid_p}" ] |
| 1933 | then |
| 1934 | printf " if (${invalid_p})\n" |
| 1935 | printf " log.puts (\"\\\\n\\\\t${function}\");\n" |
| 1936 | elif [ -n "${predefault}" ] |
| 1937 | then |
| 1938 | printf " if (gdbarch->${function} == ${predefault})\n" |
| 1939 | printf " log.puts (\"\\\\n\\\\t${function}\");\n" |
| 1940 | fi |
| 1941 | fi |
| 1942 | done |
| 1943 | cat <<EOF |
| 1944 | if (!log.empty ()) |
| 1945 | internal_error (__FILE__, __LINE__, |
| 1946 | _("verify_gdbarch: the following are invalid ...%s"), |
| 1947 | log.c_str ()); |
| 1948 | } |
| 1949 | EOF |
| 1950 | |
| 1951 | # dump the structure |
| 1952 | printf "\n" |
| 1953 | printf "\n" |
| 1954 | cat <<EOF |
| 1955 | /* Print out the details of the current architecture. */ |
| 1956 | |
| 1957 | void |
| 1958 | gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file) |
| 1959 | { |
| 1960 | const char *gdb_nm_file = "<not-defined>"; |
| 1961 | |
| 1962 | #if defined (GDB_NM_FILE) |
| 1963 | gdb_nm_file = GDB_NM_FILE; |
| 1964 | #endif |
| 1965 | fprintf_unfiltered (file, |
| 1966 | "gdbarch_dump: GDB_NM_FILE = %s\\n", |
| 1967 | gdb_nm_file); |
| 1968 | EOF |
| 1969 | function_list | sort '-t;' -k 3 | while do_read |
| 1970 | do |
| 1971 | # First the predicate |
| 1972 | if class_is_predicate_p |
| 1973 | then |
| 1974 | printf " fprintf_unfiltered (file,\n" |
| 1975 | printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n" |
| 1976 | printf " gdbarch_${function}_p (gdbarch));\n" |
| 1977 | fi |
| 1978 | # Print the corresponding value. |
| 1979 | if class_is_function_p |
| 1980 | then |
| 1981 | printf " fprintf_unfiltered (file,\n" |
| 1982 | printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n" |
| 1983 | printf " host_address_to_string (gdbarch->${function}));\n" |
| 1984 | else |
| 1985 | # It is a variable |
| 1986 | case "${print}:${returntype}" in |
| 1987 | :CORE_ADDR ) |
| 1988 | fmt="%s" |
| 1989 | print="core_addr_to_string_nz (gdbarch->${function})" |
| 1990 | ;; |
| 1991 | :* ) |
| 1992 | fmt="%s" |
| 1993 | print="plongest (gdbarch->${function})" |
| 1994 | ;; |
| 1995 | * ) |
| 1996 | fmt="%s" |
| 1997 | ;; |
| 1998 | esac |
| 1999 | printf " fprintf_unfiltered (file,\n" |
| 2000 | printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}" |
| 2001 | printf " ${print});\n" |
| 2002 | fi |
| 2003 | done |
| 2004 | cat <<EOF |
| 2005 | if (gdbarch->dump_tdep != NULL) |
| 2006 | gdbarch->dump_tdep (gdbarch, file); |
| 2007 | } |
| 2008 | EOF |
| 2009 | |
| 2010 | |
| 2011 | # GET/SET |
| 2012 | printf "\n" |
| 2013 | cat <<EOF |
| 2014 | struct gdbarch_tdep * |
| 2015 | gdbarch_tdep (struct gdbarch *gdbarch) |
| 2016 | { |
| 2017 | if (gdbarch_debug >= 2) |
| 2018 | fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n"); |
| 2019 | return gdbarch->tdep; |
| 2020 | } |
| 2021 | EOF |
| 2022 | printf "\n" |
| 2023 | function_list | while do_read |
| 2024 | do |
| 2025 | if class_is_predicate_p |
| 2026 | then |
| 2027 | printf "\n" |
| 2028 | printf "int\n" |
| 2029 | printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n" |
| 2030 | printf "{\n" |
| 2031 | printf " gdb_assert (gdbarch != NULL);\n" |
| 2032 | printf " return ${predicate};\n" |
| 2033 | printf "}\n" |
| 2034 | fi |
| 2035 | if class_is_function_p |
| 2036 | then |
| 2037 | printf "\n" |
| 2038 | printf "${returntype}\n" |
| 2039 | if [ "x${formal}" = "xvoid" ] |
| 2040 | then |
| 2041 | printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" |
| 2042 | else |
| 2043 | printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n" |
| 2044 | fi |
| 2045 | printf "{\n" |
| 2046 | printf " gdb_assert (gdbarch != NULL);\n" |
| 2047 | printf " gdb_assert (gdbarch->${function} != NULL);\n" |
| 2048 | if class_is_predicate_p && test -n "${predefault}" |
| 2049 | then |
| 2050 | # Allow a call to a function with a predicate. |
| 2051 | printf " /* Do not check predicate: ${predicate}, allow call. */\n" |
| 2052 | fi |
| 2053 | printf " if (gdbarch_debug >= 2)\n" |
| 2054 | printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" |
| 2055 | if [ "x${actual}" = "x-" -o "x${actual}" = "x" ] |
| 2056 | then |
| 2057 | if class_is_multiarch_p |
| 2058 | then |
| 2059 | params="gdbarch" |
| 2060 | else |
| 2061 | params="" |
| 2062 | fi |
| 2063 | else |
| 2064 | if class_is_multiarch_p |
| 2065 | then |
| 2066 | params="gdbarch, ${actual}" |
| 2067 | else |
| 2068 | params="${actual}" |
| 2069 | fi |
| 2070 | fi |
| 2071 | if [ "x${returntype}" = "xvoid" ] |
| 2072 | then |
| 2073 | printf " gdbarch->${function} (${params});\n" |
| 2074 | else |
| 2075 | printf " return gdbarch->${function} (${params});\n" |
| 2076 | fi |
| 2077 | printf "}\n" |
| 2078 | printf "\n" |
| 2079 | printf "void\n" |
| 2080 | printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n" |
| 2081 | printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n" |
| 2082 | printf "{\n" |
| 2083 | printf " gdbarch->${function} = ${function};\n" |
| 2084 | printf "}\n" |
| 2085 | elif class_is_variable_p |
| 2086 | then |
| 2087 | printf "\n" |
| 2088 | printf "${returntype}\n" |
| 2089 | printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" |
| 2090 | printf "{\n" |
| 2091 | printf " gdb_assert (gdbarch != NULL);\n" |
| 2092 | if [ "x${invalid_p}" = "x0" ] |
| 2093 | then |
| 2094 | printf " /* Skip verify of ${function}, invalid_p == 0 */\n" |
| 2095 | elif [ -n "${invalid_p}" ] |
| 2096 | then |
| 2097 | printf " /* Check variable is valid. */\n" |
| 2098 | printf " gdb_assert (!(${invalid_p}));\n" |
| 2099 | elif [ -n "${predefault}" ] |
| 2100 | then |
| 2101 | printf " /* Check variable changed from pre-default. */\n" |
| 2102 | printf " gdb_assert (gdbarch->${function} != ${predefault});\n" |
| 2103 | fi |
| 2104 | printf " if (gdbarch_debug >= 2)\n" |
| 2105 | printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" |
| 2106 | printf " return gdbarch->${function};\n" |
| 2107 | printf "}\n" |
| 2108 | printf "\n" |
| 2109 | printf "void\n" |
| 2110 | printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n" |
| 2111 | printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n" |
| 2112 | printf "{\n" |
| 2113 | printf " gdbarch->${function} = ${function};\n" |
| 2114 | printf "}\n" |
| 2115 | elif class_is_info_p |
| 2116 | then |
| 2117 | printf "\n" |
| 2118 | printf "${returntype}\n" |
| 2119 | printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" |
| 2120 | printf "{\n" |
| 2121 | printf " gdb_assert (gdbarch != NULL);\n" |
| 2122 | printf " if (gdbarch_debug >= 2)\n" |
| 2123 | printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" |
| 2124 | printf " return gdbarch->${function};\n" |
| 2125 | printf "}\n" |
| 2126 | fi |
| 2127 | done |
| 2128 | |
| 2129 | # All the trailing guff |
| 2130 | cat <<EOF |
| 2131 | |
| 2132 | |
| 2133 | /* Keep a registry of per-architecture data-pointers required by GDB |
| 2134 | modules. */ |
| 2135 | |
| 2136 | struct gdbarch_data |
| 2137 | { |
| 2138 | unsigned index; |
| 2139 | int init_p; |
| 2140 | gdbarch_data_pre_init_ftype *pre_init; |
| 2141 | gdbarch_data_post_init_ftype *post_init; |
| 2142 | }; |
| 2143 | |
| 2144 | struct gdbarch_data_registration |
| 2145 | { |
| 2146 | struct gdbarch_data *data; |
| 2147 | struct gdbarch_data_registration *next; |
| 2148 | }; |
| 2149 | |
| 2150 | struct gdbarch_data_registry |
| 2151 | { |
| 2152 | unsigned nr; |
| 2153 | struct gdbarch_data_registration *registrations; |
| 2154 | }; |
| 2155 | |
| 2156 | struct gdbarch_data_registry gdbarch_data_registry = |
| 2157 | { |
| 2158 | 0, NULL, |
| 2159 | }; |
| 2160 | |
| 2161 | static struct gdbarch_data * |
| 2162 | gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init, |
| 2163 | gdbarch_data_post_init_ftype *post_init) |
| 2164 | { |
| 2165 | struct gdbarch_data_registration **curr; |
| 2166 | |
| 2167 | /* Append the new registration. */ |
| 2168 | for (curr = &gdbarch_data_registry.registrations; |
| 2169 | (*curr) != NULL; |
| 2170 | curr = &(*curr)->next); |
| 2171 | (*curr) = XNEW (struct gdbarch_data_registration); |
| 2172 | (*curr)->next = NULL; |
| 2173 | (*curr)->data = XNEW (struct gdbarch_data); |
| 2174 | (*curr)->data->index = gdbarch_data_registry.nr++; |
| 2175 | (*curr)->data->pre_init = pre_init; |
| 2176 | (*curr)->data->post_init = post_init; |
| 2177 | (*curr)->data->init_p = 1; |
| 2178 | return (*curr)->data; |
| 2179 | } |
| 2180 | |
| 2181 | struct gdbarch_data * |
| 2182 | gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init) |
| 2183 | { |
| 2184 | return gdbarch_data_register (pre_init, NULL); |
| 2185 | } |
| 2186 | |
| 2187 | struct gdbarch_data * |
| 2188 | gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init) |
| 2189 | { |
| 2190 | return gdbarch_data_register (NULL, post_init); |
| 2191 | } |
| 2192 | |
| 2193 | /* Create/delete the gdbarch data vector. */ |
| 2194 | |
| 2195 | static void |
| 2196 | alloc_gdbarch_data (struct gdbarch *gdbarch) |
| 2197 | { |
| 2198 | gdb_assert (gdbarch->data == NULL); |
| 2199 | gdbarch->nr_data = gdbarch_data_registry.nr; |
| 2200 | gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *); |
| 2201 | } |
| 2202 | |
| 2203 | /* Initialize the current value of the specified per-architecture |
| 2204 | data-pointer. */ |
| 2205 | |
| 2206 | void |
| 2207 | deprecated_set_gdbarch_data (struct gdbarch *gdbarch, |
| 2208 | struct gdbarch_data *data, |
| 2209 | void *pointer) |
| 2210 | { |
| 2211 | gdb_assert (data->index < gdbarch->nr_data); |
| 2212 | gdb_assert (gdbarch->data[data->index] == NULL); |
| 2213 | gdb_assert (data->pre_init == NULL); |
| 2214 | gdbarch->data[data->index] = pointer; |
| 2215 | } |
| 2216 | |
| 2217 | /* Return the current value of the specified per-architecture |
| 2218 | data-pointer. */ |
| 2219 | |
| 2220 | void * |
| 2221 | gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data) |
| 2222 | { |
| 2223 | gdb_assert (data->index < gdbarch->nr_data); |
| 2224 | if (gdbarch->data[data->index] == NULL) |
| 2225 | { |
| 2226 | /* The data-pointer isn't initialized, call init() to get a |
| 2227 | value. */ |
| 2228 | if (data->pre_init != NULL) |
| 2229 | /* Mid architecture creation: pass just the obstack, and not |
| 2230 | the entire architecture, as that way it isn't possible for |
| 2231 | pre-init code to refer to undefined architecture |
| 2232 | fields. */ |
| 2233 | gdbarch->data[data->index] = data->pre_init (gdbarch->obstack); |
| 2234 | else if (gdbarch->initialized_p |
| 2235 | && data->post_init != NULL) |
| 2236 | /* Post architecture creation: pass the entire architecture |
| 2237 | (as all fields are valid), but be careful to also detect |
| 2238 | recursive references. */ |
| 2239 | { |
| 2240 | gdb_assert (data->init_p); |
| 2241 | data->init_p = 0; |
| 2242 | gdbarch->data[data->index] = data->post_init (gdbarch); |
| 2243 | data->init_p = 1; |
| 2244 | } |
| 2245 | else |
| 2246 | /* The architecture initialization hasn't completed - punt - |
| 2247 | hope that the caller knows what they are doing. Once |
| 2248 | deprecated_set_gdbarch_data has been initialized, this can be |
| 2249 | changed to an internal error. */ |
| 2250 | return NULL; |
| 2251 | gdb_assert (gdbarch->data[data->index] != NULL); |
| 2252 | } |
| 2253 | return gdbarch->data[data->index]; |
| 2254 | } |
| 2255 | |
| 2256 | |
| 2257 | /* Keep a registry of the architectures known by GDB. */ |
| 2258 | |
| 2259 | struct gdbarch_registration |
| 2260 | { |
| 2261 | enum bfd_architecture bfd_architecture; |
| 2262 | gdbarch_init_ftype *init; |
| 2263 | gdbarch_dump_tdep_ftype *dump_tdep; |
| 2264 | struct gdbarch_list *arches; |
| 2265 | struct gdbarch_registration *next; |
| 2266 | }; |
| 2267 | |
| 2268 | static struct gdbarch_registration *gdbarch_registry = NULL; |
| 2269 | |
| 2270 | static void |
| 2271 | append_name (const char ***buf, int *nr, const char *name) |
| 2272 | { |
| 2273 | *buf = XRESIZEVEC (const char *, *buf, *nr + 1); |
| 2274 | (*buf)[*nr] = name; |
| 2275 | *nr += 1; |
| 2276 | } |
| 2277 | |
| 2278 | const char ** |
| 2279 | gdbarch_printable_names (void) |
| 2280 | { |
| 2281 | /* Accumulate a list of names based on the registed list of |
| 2282 | architectures. */ |
| 2283 | int nr_arches = 0; |
| 2284 | const char **arches = NULL; |
| 2285 | struct gdbarch_registration *rego; |
| 2286 | |
| 2287 | for (rego = gdbarch_registry; |
| 2288 | rego != NULL; |
| 2289 | rego = rego->next) |
| 2290 | { |
| 2291 | const struct bfd_arch_info *ap; |
| 2292 | ap = bfd_lookup_arch (rego->bfd_architecture, 0); |
| 2293 | if (ap == NULL) |
| 2294 | internal_error (__FILE__, __LINE__, |
| 2295 | _("gdbarch_architecture_names: multi-arch unknown")); |
| 2296 | do |
| 2297 | { |
| 2298 | append_name (&arches, &nr_arches, ap->printable_name); |
| 2299 | ap = ap->next; |
| 2300 | } |
| 2301 | while (ap != NULL); |
| 2302 | } |
| 2303 | append_name (&arches, &nr_arches, NULL); |
| 2304 | return arches; |
| 2305 | } |
| 2306 | |
| 2307 | |
| 2308 | void |
| 2309 | gdbarch_register (enum bfd_architecture bfd_architecture, |
| 2310 | gdbarch_init_ftype *init, |
| 2311 | gdbarch_dump_tdep_ftype *dump_tdep) |
| 2312 | { |
| 2313 | struct gdbarch_registration **curr; |
| 2314 | const struct bfd_arch_info *bfd_arch_info; |
| 2315 | |
| 2316 | /* Check that BFD recognizes this architecture */ |
| 2317 | bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0); |
| 2318 | if (bfd_arch_info == NULL) |
| 2319 | { |
| 2320 | internal_error (__FILE__, __LINE__, |
| 2321 | _("gdbarch: Attempt to register " |
| 2322 | "unknown architecture (%d)"), |
| 2323 | bfd_architecture); |
| 2324 | } |
| 2325 | /* Check that we haven't seen this architecture before. */ |
| 2326 | for (curr = &gdbarch_registry; |
| 2327 | (*curr) != NULL; |
| 2328 | curr = &(*curr)->next) |
| 2329 | { |
| 2330 | if (bfd_architecture == (*curr)->bfd_architecture) |
| 2331 | internal_error (__FILE__, __LINE__, |
| 2332 | _("gdbarch: Duplicate registration " |
| 2333 | "of architecture (%s)"), |
| 2334 | bfd_arch_info->printable_name); |
| 2335 | } |
| 2336 | /* log it */ |
| 2337 | if (gdbarch_debug) |
| 2338 | fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n", |
| 2339 | bfd_arch_info->printable_name, |
| 2340 | host_address_to_string (init)); |
| 2341 | /* Append it */ |
| 2342 | (*curr) = XNEW (struct gdbarch_registration); |
| 2343 | (*curr)->bfd_architecture = bfd_architecture; |
| 2344 | (*curr)->init = init; |
| 2345 | (*curr)->dump_tdep = dump_tdep; |
| 2346 | (*curr)->arches = NULL; |
| 2347 | (*curr)->next = NULL; |
| 2348 | } |
| 2349 | |
| 2350 | void |
| 2351 | register_gdbarch_init (enum bfd_architecture bfd_architecture, |
| 2352 | gdbarch_init_ftype *init) |
| 2353 | { |
| 2354 | gdbarch_register (bfd_architecture, init, NULL); |
| 2355 | } |
| 2356 | |
| 2357 | |
| 2358 | /* Look for an architecture using gdbarch_info. */ |
| 2359 | |
| 2360 | struct gdbarch_list * |
| 2361 | gdbarch_list_lookup_by_info (struct gdbarch_list *arches, |
| 2362 | const struct gdbarch_info *info) |
| 2363 | { |
| 2364 | for (; arches != NULL; arches = arches->next) |
| 2365 | { |
| 2366 | if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info) |
| 2367 | continue; |
| 2368 | if (info->byte_order != arches->gdbarch->byte_order) |
| 2369 | continue; |
| 2370 | if (info->osabi != arches->gdbarch->osabi) |
| 2371 | continue; |
| 2372 | if (info->target_desc != arches->gdbarch->target_desc) |
| 2373 | continue; |
| 2374 | return arches; |
| 2375 | } |
| 2376 | return NULL; |
| 2377 | } |
| 2378 | |
| 2379 | |
| 2380 | /* Find an architecture that matches the specified INFO. Create a new |
| 2381 | architecture if needed. Return that new architecture. */ |
| 2382 | |
| 2383 | struct gdbarch * |
| 2384 | gdbarch_find_by_info (struct gdbarch_info info) |
| 2385 | { |
| 2386 | struct gdbarch *new_gdbarch; |
| 2387 | struct gdbarch_registration *rego; |
| 2388 | |
| 2389 | /* Fill in missing parts of the INFO struct using a number of |
| 2390 | sources: "set ..."; INFOabfd supplied; and the global |
| 2391 | defaults. */ |
| 2392 | gdbarch_info_fill (&info); |
| 2393 | |
| 2394 | /* Must have found some sort of architecture. */ |
| 2395 | gdb_assert (info.bfd_arch_info != NULL); |
| 2396 | |
| 2397 | if (gdbarch_debug) |
| 2398 | { |
| 2399 | fprintf_unfiltered (gdb_stdlog, |
| 2400 | "gdbarch_find_by_info: info.bfd_arch_info %s\n", |
| 2401 | (info.bfd_arch_info != NULL |
| 2402 | ? info.bfd_arch_info->printable_name |
| 2403 | : "(null)")); |
| 2404 | fprintf_unfiltered (gdb_stdlog, |
| 2405 | "gdbarch_find_by_info: info.byte_order %d (%s)\n", |
| 2406 | info.byte_order, |
| 2407 | (info.byte_order == BFD_ENDIAN_BIG ? "big" |
| 2408 | : info.byte_order == BFD_ENDIAN_LITTLE ? "little" |
| 2409 | : "default")); |
| 2410 | fprintf_unfiltered (gdb_stdlog, |
| 2411 | "gdbarch_find_by_info: info.osabi %d (%s)\n", |
| 2412 | info.osabi, gdbarch_osabi_name (info.osabi)); |
| 2413 | fprintf_unfiltered (gdb_stdlog, |
| 2414 | "gdbarch_find_by_info: info.abfd %s\n", |
| 2415 | host_address_to_string (info.abfd)); |
| 2416 | fprintf_unfiltered (gdb_stdlog, |
| 2417 | "gdbarch_find_by_info: info.tdep_info %s\n", |
| 2418 | host_address_to_string (info.tdep_info)); |
| 2419 | } |
| 2420 | |
| 2421 | /* Find the tdep code that knows about this architecture. */ |
| 2422 | for (rego = gdbarch_registry; |
| 2423 | rego != NULL; |
| 2424 | rego = rego->next) |
| 2425 | if (rego->bfd_architecture == info.bfd_arch_info->arch) |
| 2426 | break; |
| 2427 | if (rego == NULL) |
| 2428 | { |
| 2429 | if (gdbarch_debug) |
| 2430 | fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: " |
| 2431 | "No matching architecture\n"); |
| 2432 | return 0; |
| 2433 | } |
| 2434 | |
| 2435 | /* Ask the tdep code for an architecture that matches "info". */ |
| 2436 | new_gdbarch = rego->init (info, rego->arches); |
| 2437 | |
| 2438 | /* Did the tdep code like it? No. Reject the change and revert to |
| 2439 | the old architecture. */ |
| 2440 | if (new_gdbarch == NULL) |
| 2441 | { |
| 2442 | if (gdbarch_debug) |
| 2443 | fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: " |
| 2444 | "Target rejected architecture\n"); |
| 2445 | return NULL; |
| 2446 | } |
| 2447 | |
| 2448 | /* Is this a pre-existing architecture (as determined by already |
| 2449 | being initialized)? Move it to the front of the architecture |
| 2450 | list (keeping the list sorted Most Recently Used). */ |
| 2451 | if (new_gdbarch->initialized_p) |
| 2452 | { |
| 2453 | struct gdbarch_list **list; |
| 2454 | struct gdbarch_list *self; |
| 2455 | if (gdbarch_debug) |
| 2456 | fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: " |
| 2457 | "Previous architecture %s (%s) selected\n", |
| 2458 | host_address_to_string (new_gdbarch), |
| 2459 | new_gdbarch->bfd_arch_info->printable_name); |
| 2460 | /* Find the existing arch in the list. */ |
| 2461 | for (list = ®o->arches; |
| 2462 | (*list) != NULL && (*list)->gdbarch != new_gdbarch; |
| 2463 | list = &(*list)->next); |
| 2464 | /* It had better be in the list of architectures. */ |
| 2465 | gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch); |
| 2466 | /* Unlink SELF. */ |
| 2467 | self = (*list); |
| 2468 | (*list) = self->next; |
| 2469 | /* Insert SELF at the front. */ |
| 2470 | self->next = rego->arches; |
| 2471 | rego->arches = self; |
| 2472 | /* Return it. */ |
| 2473 | return new_gdbarch; |
| 2474 | } |
| 2475 | |
| 2476 | /* It's a new architecture. */ |
| 2477 | if (gdbarch_debug) |
| 2478 | fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: " |
| 2479 | "New architecture %s (%s) selected\n", |
| 2480 | host_address_to_string (new_gdbarch), |
| 2481 | new_gdbarch->bfd_arch_info->printable_name); |
| 2482 | |
| 2483 | /* Insert the new architecture into the front of the architecture |
| 2484 | list (keep the list sorted Most Recently Used). */ |
| 2485 | { |
| 2486 | struct gdbarch_list *self = XNEW (struct gdbarch_list); |
| 2487 | self->next = rego->arches; |
| 2488 | self->gdbarch = new_gdbarch; |
| 2489 | rego->arches = self; |
| 2490 | } |
| 2491 | |
| 2492 | /* Check that the newly installed architecture is valid. Plug in |
| 2493 | any post init values. */ |
| 2494 | new_gdbarch->dump_tdep = rego->dump_tdep; |
| 2495 | verify_gdbarch (new_gdbarch); |
| 2496 | new_gdbarch->initialized_p = 1; |
| 2497 | |
| 2498 | if (gdbarch_debug) |
| 2499 | gdbarch_dump (new_gdbarch, gdb_stdlog); |
| 2500 | |
| 2501 | return new_gdbarch; |
| 2502 | } |
| 2503 | |
| 2504 | /* Make the specified architecture current. */ |
| 2505 | |
| 2506 | void |
| 2507 | set_target_gdbarch (struct gdbarch *new_gdbarch) |
| 2508 | { |
| 2509 | gdb_assert (new_gdbarch != NULL); |
| 2510 | gdb_assert (new_gdbarch->initialized_p); |
| 2511 | current_inferior ()->gdbarch = new_gdbarch; |
| 2512 | gdb::observers::architecture_changed.notify (new_gdbarch); |
| 2513 | registers_changed (); |
| 2514 | } |
| 2515 | |
| 2516 | /* Return the current inferior's arch. */ |
| 2517 | |
| 2518 | struct gdbarch * |
| 2519 | target_gdbarch (void) |
| 2520 | { |
| 2521 | return current_inferior ()->gdbarch; |
| 2522 | } |
| 2523 | |
| 2524 | void |
| 2525 | _initialize_gdbarch (void) |
| 2526 | { |
| 2527 | add_setshow_zuinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\ |
| 2528 | Set architecture debugging."), _("\\ |
| 2529 | Show architecture debugging."), _("\\ |
| 2530 | When non-zero, architecture debugging is enabled."), |
| 2531 | NULL, |
| 2532 | show_gdbarch_debug, |
| 2533 | &setdebuglist, &showdebuglist); |
| 2534 | } |
| 2535 | EOF |
| 2536 | |
| 2537 | # close things off |
| 2538 | exec 1>&2 |
| 2539 | #../move-if-change new-gdbarch.c gdbarch.c |
| 2540 | compare_new gdbarch.c |