3 # Architecture commands for GDB, the GNU debugger.
4 # Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
6 # This file is part of GDB.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 # Make certain that the script is running in an internationalized
25 LC_ALL=c ; export LC_ALL
33 echo "${file} missing? cp new-${file} ${file}" 1>&2
34 elif diff -u ${file} new-${file}
36 echo "${file} unchanged" 1>&2
38 echo "${file} has changed? cp new-${file} ${file}" 1>&2
43 # Format of the input table
44 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
52 if test "${line}" = ""
55 elif test "${line}" = "#" -a "${comment}" = ""
58 elif expr "${line}" : "#" > /dev/null
64 # The semantics of IFS varies between different SH's. Some
65 # treat ``::' as three fields while some treat it as just too.
66 # Work around this by eliminating ``::'' ....
67 line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
69 OFS="${IFS}" ; IFS="[:]"
70 eval read ${read} <<EOF
75 # .... and then going back through each field and strip out those
76 # that ended up with just that space character.
79 if eval test \"\${${r}}\" = \"\ \"
86 1 ) gt_level=">= GDB_MULTI_ARCH_PARTIAL" ;;
87 2 ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
89 * ) error "Error: bad level for ${function}" 1>&2 ; kill $$ ; exit 1 ;;
93 m ) staticdefault="${predefault}" ;;
94 M ) staticdefault="0" ;;
95 * ) test "${staticdefault}" || staticdefault=0 ;;
97 # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
98 # multi-arch defaults.
99 # test "${predefault}" || predefault=0
101 # come up with a format, use a few guesses for variables
102 case ":${class}:${fmt}:${print}:" in
104 if [ "${returntype}" = int ]
108 elif [ "${returntype}" = long ]
115 test "${fmt}" || fmt="%ld"
116 test "${print}" || print="(long) ${macro}"
118 case "${invalid_p}" in
121 if [ -n "${predefault}" ]
123 #invalid_p="gdbarch->${function} == ${predefault}"
124 valid_p="gdbarch->${function} != ${predefault}"
126 #invalid_p="gdbarch->${function} == 0"
127 valid_p="gdbarch->${function} != 0"
130 * ) valid_p="!(${invalid_p})"
133 # PREDEFAULT is a valid fallback definition of MEMBER when
134 # multi-arch is not enabled. This ensures that the
135 # default value, when multi-arch is the same as the
136 # default value when not multi-arch. POSTDEFAULT is
137 # always a valid definition of MEMBER as this again
138 # ensures consistency.
140 if [ -n "${postdefault}" ]
142 fallbackdefault="${postdefault}"
143 elif [ -n "${predefault}" ]
145 fallbackdefault="${predefault}"
150 #NOT YET: See gdbarch.log for basic verification of
165 fallback_default_p ()
167 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
168 || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
171 class_is_variable_p ()
179 class_is_function_p ()
182 *f* | *F* | *m* | *M* ) true ;;
187 class_is_multiarch_p ()
195 class_is_predicate_p ()
198 *F* | *V* | *M* ) true ;;
212 # dump out/verify the doco
222 # F -> function + predicate
223 # hiding a function + predicate to test function validity
226 # V -> variable + predicate
227 # hiding a variable + predicate to test variables validity
229 # hiding something from the ``struct info'' object
230 # m -> multi-arch function
231 # hiding a multi-arch function (parameterised with the architecture)
232 # M -> multi-arch function + predicate
233 # hiding a multi-arch function + predicate to test function validity
237 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
238 # LEVEL is a predicate on checking that a given method is
239 # initialized (using INVALID_P).
243 # The name of the MACRO that this method is to be accessed by.
247 # For functions, the return type; for variables, the data type
251 # For functions, the member function name; for variables, the
252 # variable name. Member function names are always prefixed with
253 # ``gdbarch_'' for name-space purity.
257 # The formal argument list. It is assumed that the formal
258 # argument list includes the actual name of each list element.
259 # A function with no arguments shall have ``void'' as the
260 # formal argument list.
264 # The list of actual arguments. The arguments specified shall
265 # match the FORMAL list given above. Functions with out
266 # arguments leave this blank.
270 # Any GCC attributes that should be attached to the function
271 # declaration. At present this field is unused.
275 # To help with the GDB startup a static gdbarch object is
276 # created. STATICDEFAULT is the value to insert into that
277 # static gdbarch object. Since this a static object only
278 # simple expressions can be used.
280 # If STATICDEFAULT is empty, zero is used.
284 # An initial value to assign to MEMBER of the freshly
285 # malloc()ed gdbarch object. After initialization, the
286 # freshly malloc()ed object is passed to the target
287 # architecture code for further updates.
289 # If PREDEFAULT is empty, zero is used.
291 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
292 # INVALID_P are specified, PREDEFAULT will be used as the
293 # default for the non- multi-arch target.
295 # A zero PREDEFAULT function will force the fallback to call
298 # Variable declarations can refer to ``gdbarch'' which will
299 # contain the current architecture. Care should be taken.
303 # A value to assign to MEMBER of the new gdbarch object should
304 # the target architecture code fail to change the PREDEFAULT
307 # If POSTDEFAULT is empty, no post update is performed.
309 # If both INVALID_P and POSTDEFAULT are non-empty then
310 # INVALID_P will be used to determine if MEMBER should be
311 # changed to POSTDEFAULT.
313 # If a non-empty POSTDEFAULT and a zero INVALID_P are
314 # specified, POSTDEFAULT will be used as the default for the
315 # non- multi-arch target (regardless of the value of
318 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
320 # Variable declarations can refer to ``gdbarch'' which will
321 # contain the current architecture. Care should be taken.
325 # A predicate equation that validates MEMBER. Non-zero is
326 # returned if the code creating the new architecture failed to
327 # initialize MEMBER or the initialized the member is invalid.
328 # If POSTDEFAULT is non-empty then MEMBER will be updated to
329 # that value. If POSTDEFAULT is empty then internal_error()
332 # If INVALID_P is empty, a check that MEMBER is no longer
333 # equal to PREDEFAULT is used.
335 # The expression ``0'' disables the INVALID_P check making
336 # PREDEFAULT a legitimate value.
338 # See also PREDEFAULT and POSTDEFAULT.
342 # printf style format string that can be used to print out the
343 # MEMBER. Sometimes "%s" is useful. For functions, this is
344 # ignored and the function address is printed.
346 # If FMT is empty, ``%ld'' is used.
350 # An optional equation that casts MEMBER to a value suitable
351 # for formatting by FMT.
353 # If PRINT is empty, ``(long)'' is used.
357 # An optional indicator for any predicte to wrap around the
360 # () -> Call a custom function to do the dump.
361 # exp -> Wrap print up in ``if (${print_p}) ...
362 # ``'' -> No predicate
364 # If PRINT_P is empty, ``1'' is always used.
371 echo "Bad field ${field}"
379 # See below (DOCO) for description of each field
381 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
383 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
384 # Number of bits in a char or unsigned char for the target machine.
385 # Just like CHAR_BIT in <limits.h> but describes the target machine.
386 # v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
388 # Number of bits in a short or unsigned short for the target machine.
389 v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
390 # Number of bits in an int or unsigned int for the target machine.
391 v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
392 # Number of bits in a long or unsigned long for the target machine.
393 v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
394 # Number of bits in a long long or unsigned long long for the target
396 v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
397 # Number of bits in a float for the target machine.
398 v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
399 # Number of bits in a double for the target machine.
400 v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
401 # Number of bits in a long double for the target machine.
402 v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
403 # For most targets, a pointer on the target and its representation as an
404 # address in GDB have the same size and "look the same". For such a
405 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
406 # / addr_bit will be set from it.
408 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
409 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
411 # ptr_bit is the size of a pointer on the target
412 v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
413 # addr_bit is the size of a target address as represented in gdb
414 v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
415 # Number of bits in a BFD_VMA for the target object file format.
416 v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
418 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
419 v::TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
421 f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
422 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
423 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
424 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
425 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
426 # Function for getting target's idea of a frame pointer. FIXME: GDB's
427 # whole scheme for dealing with "frames" and "frame pointers" needs a
429 f::TARGET_VIRTUAL_FRAME_POINTER:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset::0:legacy_virtual_frame_pointer::0
431 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf:
432 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf:
434 v:2:NUM_REGS:int:num_regs::::0:-1
435 # This macro gives the number of pseudo-registers that live in the
436 # register namespace but do not get fetched or stored on the target.
437 # These pseudo-registers may be aliases for other registers,
438 # combinations of other registers, or they may be computed by GDB.
439 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
441 # GDB's standard (or well known) register numbers. These can map onto
442 # a real register or a pseudo (computed) register or not be defined at
444 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
445 v:2:FP_REGNUM:int:fp_regnum::::-1:-1::0
446 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
447 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
448 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
449 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
450 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
451 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
452 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
453 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
454 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
455 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
456 # Convert from an sdb register number to an internal gdb register number.
457 # This should be defined in tm.h, if REGISTER_NAMES is not set up
458 # to map one to one onto the sdb register numbers.
459 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
460 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
461 f:2:REGISTER_NAME:const char *:register_name:int regnr:regnr:::legacy_register_name::0
462 v:2:REGISTER_SIZE:int:register_size::::0:-1
463 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
464 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte::0
465 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
466 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
467 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
468 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
469 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
471 F:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
472 m:2:PRINT_REGISTERS_INFO: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
473 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
474 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
475 # MAP a GDB RAW register number onto a simulator register number. See
476 # also include/...-sim.h.
477 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
478 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
479 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
480 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
481 # setjmp/longjmp support.
482 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc::0:0
484 # Non multi-arch DUMMY_FRAMES are a mess (multi-arch ones are not that
485 # much better but at least they are vaguely consistent). The headers
486 # and body contain convoluted #if/#else sequences for determine how
487 # things should be compiled. Instead of trying to mimic that
488 # behaviour here (and hence entrench it further) gdbarch simply
489 # reqires that these methods be set up from the word go. This also
490 # avoids any potential problems with moving beyond multi-arch partial.
491 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
492 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
493 f:2:CALL_DUMMY_ADDRESS:CORE_ADDR:call_dummy_address:void:::0:0::gdbarch->call_dummy_location == AT_ENTRY_POINT && gdbarch->call_dummy_address == 0
494 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
495 v:2:CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset::::0:-1::gdbarch->call_dummy_breakpoint_offset_p && gdbarch->call_dummy_breakpoint_offset == -1:0x%08lx::CALL_DUMMY_BREAKPOINT_OFFSET_P
496 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
497 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
498 f:1:PC_IN_CALL_DUMMY:int:pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::0:0
499 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
500 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
501 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
502 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
503 v:2:CALL_DUMMY_STACK_ADJUST:int:call_dummy_stack_adjust::::0:::gdbarch->call_dummy_stack_adjust_p && gdbarch->call_dummy_stack_adjust == 0:0x%08lx::CALL_DUMMY_STACK_ADJUST_P
504 f:2:FIX_CALL_DUMMY:void:fix_call_dummy:char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs, struct value **args, struct type *type, int gcc_p:dummy, pc, fun, nargs, args, type, gcc_p:::0
505 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0
506 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0
508 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
509 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
510 f:2:COERCE_FLOAT_TO_DOUBLE:int:coerce_float_to_double:struct type *formal, struct type *actual:formal, actual:::default_coerce_float_to_double::0
511 f:2:GET_SAVED_REGISTER:void:get_saved_register:char *raw_buffer, int *optimized, CORE_ADDR *addrp, struct frame_info *frame, int regnum, enum lval_type *lval:raw_buffer, optimized, addrp, frame, regnum, lval:::generic_unwind_get_saved_register::0
513 f:2:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
514 f:2:REGISTER_CONVERT_TO_VIRTUAL:void:register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to:::0::0
515 f:2:REGISTER_CONVERT_TO_RAW:void:register_convert_to_raw:struct type *type, int regnum, char *from, char *to:type, regnum, from, to:::0::0
517 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum:regnum::0:legacy_convert_register_p::0
518 f:1:REGISTER_TO_VALUE:void:register_to_value:int regnum, struct type *type, char *from, char *to:regnum, type, from, to::0:legacy_register_to_value::0
519 f:1:VALUE_TO_REGISTER:void:value_to_register:struct type *type, int regnum, char *from, char *to:type, regnum, from, to::0:legacy_value_to_register::0
521 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
522 f:2:ADDRESS_TO_POINTER:void:address_to_pointer:struct type *type, void *buf, CORE_ADDR addr:type, buf, addr:::unsigned_address_to_pointer::0
523 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
525 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
526 f:2:PUSH_ARGUMENTS:CORE_ADDR:push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr:::default_push_arguments::0
527 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
528 F:2:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
529 f:2:POP_FRAME:void:pop_frame:void:-:::0
531 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
533 f::EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, struct regcache *regcache, void *valbuf:type, regcache, valbuf:::legacy_extract_return_value::0
534 f::STORE_RETURN_VALUE:void:store_return_value:struct type *type, struct regcache *regcache, const void *valbuf:type, regcache, valbuf:::legacy_store_return_value::0
535 f::DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
536 f::DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
538 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache:::0
539 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf:::0
540 f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type:::generic_use_struct_convention::0
542 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
543 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
545 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
546 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
547 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
548 f:2:BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
549 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
550 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
551 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
552 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
553 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
555 f:2:REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address::0
557 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
558 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
559 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
560 # Define a default FRAME_CHAIN_VALID, in the form that is suitable for
561 # most targets. If FRAME_CHAIN_VALID returns zero it means that the
562 # given frame is the outermost one and has no caller.
564 # XXXX - both default and alternate frame_chain_valid functions are
565 # deprecated. New code should use dummy frames and one of the generic
567 f:2:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe:::generic_func_frame_chain_valid::0
568 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
569 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
570 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
571 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
572 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
574 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
575 v:2:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
576 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
577 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
578 v:2:PARM_BOUNDARY:int:parm_boundary
580 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
581 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
582 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)
583 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
584 # On some machines there are bits in addresses which are not really
585 # part of the address, but are used by the kernel, the hardware, etc.
586 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
587 # we get a "real" address such as one would find in a symbol table.
588 # This is used only for addresses of instructions, and even then I'm
589 # not sure it's used in all contexts. It exists to deal with there
590 # being a few stray bits in the PC which would mislead us, not as some
591 # sort of generic thing to handle alignment or segmentation (it's
592 # possible it should be in TARGET_READ_PC instead).
593 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
594 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
596 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
597 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
598 # the target needs software single step. An ISA method to implement it.
600 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
601 # using the breakpoint system instead of blatting memory directly (as with rs6000).
603 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
604 # single step. If not, then implement single step using breakpoints.
605 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
606 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
607 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
610 # For SVR4 shared libraries, each call goes through a small piece of
611 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
612 # to nonzero if we are currently stopped in one of these.
613 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
615 # Some systems also have trampoline code for returning from shared libs.
616 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
618 # Sigtramp is a routine that the kernel calls (which then calls the
619 # signal handler). On most machines it is a library routine that is
620 # linked into the executable.
622 # This macro, given a program counter value and the name of the
623 # function in which that PC resides (which can be null if the name is
624 # not known), returns nonzero if the PC and name show that we are in
627 # On most machines just see if the name is sigtramp (and if we have
628 # no name, assume we are not in sigtramp).
630 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
631 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
632 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
633 # own local NAME lookup.
635 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
636 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
638 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
639 # A target might have problems with watchpoints as soon as the stack
640 # frame of the current function has been destroyed. This mostly happens
641 # as the first action in a funtion's epilogue. in_function_epilogue_p()
642 # is defined to return a non-zero value if either the given addr is one
643 # instruction after the stack destroying instruction up to the trailing
644 # return instruction or if we can figure out that the stack frame has
645 # already been invalidated regardless of the value of addr. Targets
646 # which don't suffer from that problem could just let this functionality
648 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
649 # Given a vector of command-line arguments, return a newly allocated
650 # string which, when passed to the create_inferior function, will be
651 # parsed (on Unix systems, by the shell) to yield the same vector.
652 # This function should call error() if the argument vector is not
653 # representable for this target or if this target does not support
654 # command-line arguments.
655 # ARGC is the number of elements in the vector.
656 # ARGV is an array of strings, one per argument.
657 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
658 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
659 f:2:ELF_MAKE_MSYMBOL_SPECIAL:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym:::default_elf_make_msymbol_special::0
660 f:2:COFF_MAKE_MSYMBOL_SPECIAL:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym:::default_coff_make_msymbol_special::0
667 exec > new-gdbarch.log
668 function_list | while do_read
671 ${class} ${macro}(${actual})
672 ${returntype} ${function} ($formal)${attrib}
676 eval echo \"\ \ \ \ ${r}=\${${r}}\"
678 # #fallbackdefault=${fallbackdefault}
679 # #valid_p=${valid_p}
681 if class_is_predicate_p && fallback_default_p
683 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
687 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
689 echo "Error: postdefault is useless when invalid_p=0" 1>&2
693 if class_is_multiarch_p
695 if class_is_predicate_p ; then :
696 elif test "x${predefault}" = "x"
698 echo "Error: pure multi-arch function must have a predefault" 1>&2
707 compare_new gdbarch.log
713 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
715 /* Dynamic architecture support for GDB, the GNU debugger.
716 Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
718 This file is part of GDB.
720 This program is free software; you can redistribute it and/or modify
721 it under the terms of the GNU General Public License as published by
722 the Free Software Foundation; either version 2 of the License, or
723 (at your option) any later version.
725 This program is distributed in the hope that it will be useful,
726 but WITHOUT ANY WARRANTY; without even the implied warranty of
727 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
728 GNU General Public License for more details.
730 You should have received a copy of the GNU General Public License
731 along with this program; if not, write to the Free Software
732 Foundation, Inc., 59 Temple Place - Suite 330,
733 Boston, MA 02111-1307, USA. */
735 /* This file was created with the aid of \`\`gdbarch.sh''.
737 The Bourne shell script \`\`gdbarch.sh'' creates the files
738 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
739 against the existing \`\`gdbarch.[hc]''. Any differences found
742 If editing this file, please also run gdbarch.sh and merge any
743 changes into that script. Conversely, when making sweeping changes
744 to this file, modifying gdbarch.sh and using its output may prove
760 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
762 /* Pull in function declarations refered to, indirectly, via macros. */
763 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
764 #include "inferior.h" /* For unsigned_address_to_pointer(). */
770 struct minimal_symbol;
773 extern struct gdbarch *current_gdbarch;
776 /* If any of the following are defined, the target wasn't correctly
780 #if defined (EXTRA_FRAME_INFO)
781 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
786 #if defined (FRAME_FIND_SAVED_REGS)
787 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
791 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
792 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
799 printf "/* The following are pre-initialized by GDBARCH. */\n"
800 function_list | while do_read
805 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
806 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
807 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
808 printf "#error \"Non multi-arch definition of ${macro}\"\n"
810 printf "#if GDB_MULTI_ARCH\n"
811 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
812 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
821 printf "/* The following are initialized by the target dependent code. */\n"
822 function_list | while do_read
824 if [ -n "${comment}" ]
826 echo "${comment}" | sed \
831 if class_is_multiarch_p
833 if class_is_predicate_p
836 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
839 if class_is_predicate_p
842 printf "#if defined (${macro})\n"
843 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
844 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
845 printf "#if !defined (${macro}_P)\n"
846 printf "#define ${macro}_P() (1)\n"
850 printf "/* Default predicate for non- multi-arch targets. */\n"
851 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
852 printf "#define ${macro}_P() (0)\n"
855 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
856 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
857 printf "#error \"Non multi-arch definition of ${macro}\"\n"
859 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
860 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
864 if class_is_variable_p
866 if fallback_default_p || class_is_predicate_p
869 printf "/* Default (value) for non- multi-arch platforms. */\n"
870 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
871 echo "#define ${macro} (${fallbackdefault})" \
872 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
876 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
877 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
878 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
879 printf "#error \"Non multi-arch definition of ${macro}\"\n"
881 printf "#if GDB_MULTI_ARCH\n"
882 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
883 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
887 if class_is_function_p
889 if class_is_multiarch_p ; then :
890 elif fallback_default_p || class_is_predicate_p
893 printf "/* Default (function) for non- multi-arch platforms. */\n"
894 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
895 if [ "x${fallbackdefault}" = "x0" ]
897 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
899 # FIXME: Should be passing current_gdbarch through!
900 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
901 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
906 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
908 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
909 elif class_is_multiarch_p
911 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
913 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
915 if [ "x${formal}" = "xvoid" ]
917 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
919 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
921 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
922 if class_is_multiarch_p ; then :
924 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
925 printf "#error \"Non multi-arch definition of ${macro}\"\n"
927 printf "#if GDB_MULTI_ARCH\n"
928 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
929 if [ "x${actual}" = "x" ]
931 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
932 elif [ "x${actual}" = "x-" ]
934 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
936 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
947 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
950 /* Mechanism for co-ordinating the selection of a specific
953 GDB targets (*-tdep.c) can register an interest in a specific
954 architecture. Other GDB components can register a need to maintain
955 per-architecture data.
957 The mechanisms below ensures that there is only a loose connection
958 between the set-architecture command and the various GDB
959 components. Each component can independently register their need
960 to maintain architecture specific data with gdbarch.
964 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
967 The more traditional mega-struct containing architecture specific
968 data for all the various GDB components was also considered. Since
969 GDB is built from a variable number of (fairly independent)
970 components it was determined that the global aproach was not
974 /* Register a new architectural family with GDB.
976 Register support for the specified ARCHITECTURE with GDB. When
977 gdbarch determines that the specified architecture has been
978 selected, the corresponding INIT function is called.
982 The INIT function takes two parameters: INFO which contains the
983 information available to gdbarch about the (possibly new)
984 architecture; ARCHES which is a list of the previously created
985 \`\`struct gdbarch'' for this architecture.
987 The INFO parameter is, as far as possible, be pre-initialized with
988 information obtained from INFO.ABFD or the previously selected
991 The ARCHES parameter is a linked list (sorted most recently used)
992 of all the previously created architures for this architecture
993 family. The (possibly NULL) ARCHES->gdbarch can used to access
994 values from the previously selected architecture for this
995 architecture family. The global \`\`current_gdbarch'' shall not be
998 The INIT function shall return any of: NULL - indicating that it
999 doesn't recognize the selected architecture; an existing \`\`struct
1000 gdbarch'' from the ARCHES list - indicating that the new
1001 architecture is just a synonym for an earlier architecture (see
1002 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1003 - that describes the selected architecture (see gdbarch_alloc()).
1005 The DUMP_TDEP function shall print out all target specific values.
1006 Care should be taken to ensure that the function works in both the
1007 multi-arch and non- multi-arch cases. */
1011 struct gdbarch *gdbarch;
1012 struct gdbarch_list *next;
1017 /* Use default: NULL (ZERO). */
1018 const struct bfd_arch_info *bfd_arch_info;
1020 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1023 /* Use default: NULL (ZERO). */
1026 /* Use default: NULL (ZERO). */
1027 struct gdbarch_tdep_info *tdep_info;
1030 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1031 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1033 /* DEPRECATED - use gdbarch_register() */
1034 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1036 extern void gdbarch_register (enum bfd_architecture architecture,
1037 gdbarch_init_ftype *,
1038 gdbarch_dump_tdep_ftype *);
1041 /* Return a freshly allocated, NULL terminated, array of the valid
1042 architecture names. Since architectures are registered during the
1043 _initialize phase this function only returns useful information
1044 once initialization has been completed. */
1046 extern const char **gdbarch_printable_names (void);
1049 /* Helper function. Search the list of ARCHES for a GDBARCH that
1050 matches the information provided by INFO. */
1052 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1055 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1056 basic initialization using values obtained from the INFO andTDEP
1057 parameters. set_gdbarch_*() functions are called to complete the
1058 initialization of the object. */
1060 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1063 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1064 It is assumed that the caller freeds the \`\`struct
1067 extern void gdbarch_free (struct gdbarch *);
1070 /* Helper function. Force an update of the current architecture.
1072 The actual architecture selected is determined by INFO, \`\`(gdb) set
1073 architecture'' et.al., the existing architecture and BFD's default
1074 architecture. INFO should be initialized to zero and then selected
1075 fields should be updated.
1077 Returns non-zero if the update succeeds */
1079 extern int gdbarch_update_p (struct gdbarch_info info);
1083 /* Register per-architecture data-pointer.
1085 Reserve space for a per-architecture data-pointer. An identifier
1086 for the reserved data-pointer is returned. That identifer should
1087 be saved in a local static variable.
1089 The per-architecture data-pointer is either initialized explicitly
1090 (set_gdbarch_data()) or implicitly (by INIT() via a call to
1091 gdbarch_data()). FREE() is called to delete either an existing
1092 data-pointer overridden by set_gdbarch_data() or when the
1093 architecture object is being deleted.
1095 When a previously created architecture is re-selected, the
1096 per-architecture data-pointer for that previous architecture is
1097 restored. INIT() is not re-called.
1099 Multiple registrarants for any architecture are allowed (and
1100 strongly encouraged). */
1102 struct gdbarch_data;
1104 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1105 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1107 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1108 gdbarch_data_free_ftype *free);
1109 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1110 struct gdbarch_data *data,
1113 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1116 /* Register per-architecture memory region.
1118 Provide a memory-region swap mechanism. Per-architecture memory
1119 region are created. These memory regions are swapped whenever the
1120 architecture is changed. For a new architecture, the memory region
1121 is initialized with zero (0) and the INIT function is called.
1123 Memory regions are swapped / initialized in the order that they are
1124 registered. NULL DATA and/or INIT values can be specified.
1126 New code should use register_gdbarch_data(). */
1128 typedef void (gdbarch_swap_ftype) (void);
1129 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1130 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1134 /* The target-system-dependent byte order is dynamic */
1136 extern int target_byte_order;
1137 #ifndef TARGET_BYTE_ORDER
1138 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1141 extern int target_byte_order_auto;
1142 #ifndef TARGET_BYTE_ORDER_AUTO
1143 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1148 /* The target-system-dependent BFD architecture is dynamic */
1150 extern int target_architecture_auto;
1151 #ifndef TARGET_ARCHITECTURE_AUTO
1152 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1155 extern const struct bfd_arch_info *target_architecture;
1156 #ifndef TARGET_ARCHITECTURE
1157 #define TARGET_ARCHITECTURE (target_architecture + 0)
1161 /* The target-system-dependent disassembler is semi-dynamic */
1163 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1164 unsigned int len, disassemble_info *info);
1166 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1167 disassemble_info *info);
1169 extern void dis_asm_print_address (bfd_vma addr,
1170 disassemble_info *info);
1172 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1173 extern disassemble_info tm_print_insn_info;
1174 #ifndef TARGET_PRINT_INSN_INFO
1175 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1180 /* Set the dynamic target-system-dependent parameters (architecture,
1181 byte-order, ...) using information found in the BFD */
1183 extern void set_gdbarch_from_file (bfd *);
1186 /* Initialize the current architecture to the "first" one we find on
1189 extern void initialize_current_architecture (void);
1191 /* For non-multiarched targets, do any initialization of the default
1192 gdbarch object necessary after the _initialize_MODULE functions
1194 extern void initialize_non_multiarch (void);
1196 /* gdbarch trace variable */
1197 extern int gdbarch_debug;
1199 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1204 #../move-if-change new-gdbarch.h gdbarch.h
1205 compare_new gdbarch.h
1212 exec > new-gdbarch.c
1217 #include "arch-utils.h"
1221 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1223 /* Just include everything in sight so that the every old definition
1224 of macro is visible. */
1225 #include "gdb_string.h"
1229 #include "inferior.h"
1230 #include "breakpoint.h"
1231 #include "gdb_wait.h"
1232 #include "gdbcore.h"
1235 #include "gdbthread.h"
1236 #include "annotate.h"
1237 #include "symfile.h" /* for overlay functions */
1238 #include "value.h" /* For old tm.h/nm.h macros. */
1242 #include "floatformat.h"
1244 #include "gdb_assert.h"
1245 #include "gdb_string.h"
1246 #include "gdb-events.h"
1248 /* Static function declarations */
1250 static void verify_gdbarch (struct gdbarch *gdbarch);
1251 static void alloc_gdbarch_data (struct gdbarch *);
1252 static void free_gdbarch_data (struct gdbarch *);
1253 static void init_gdbarch_swap (struct gdbarch *);
1254 static void clear_gdbarch_swap (struct gdbarch *);
1255 static void swapout_gdbarch_swap (struct gdbarch *);
1256 static void swapin_gdbarch_swap (struct gdbarch *);
1258 /* Non-zero if we want to trace architecture code. */
1260 #ifndef GDBARCH_DEBUG
1261 #define GDBARCH_DEBUG 0
1263 int gdbarch_debug = GDBARCH_DEBUG;
1267 # gdbarch open the gdbarch object
1269 printf "/* Maintain the struct gdbarch object */\n"
1271 printf "struct gdbarch\n"
1273 printf " /* Has this architecture been fully initialized? */\n"
1274 printf " int initialized_p;\n"
1275 printf " /* basic architectural information */\n"
1276 function_list | while do_read
1280 printf " ${returntype} ${function};\n"
1284 printf " /* target specific vector. */\n"
1285 printf " struct gdbarch_tdep *tdep;\n"
1286 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1288 printf " /* per-architecture data-pointers */\n"
1289 printf " unsigned nr_data;\n"
1290 printf " void **data;\n"
1292 printf " /* per-architecture swap-regions */\n"
1293 printf " struct gdbarch_swap *swap;\n"
1296 /* Multi-arch values.
1298 When extending this structure you must:
1300 Add the field below.
1302 Declare set/get functions and define the corresponding
1305 gdbarch_alloc(): If zero/NULL is not a suitable default,
1306 initialize the new field.
1308 verify_gdbarch(): Confirm that the target updated the field
1311 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1314 \`\`startup_gdbarch()'': Append an initial value to the static
1315 variable (base values on the host's c-type system).
1317 get_gdbarch(): Implement the set/get functions (probably using
1318 the macro's as shortcuts).
1323 function_list | while do_read
1325 if class_is_variable_p
1327 printf " ${returntype} ${function};\n"
1328 elif class_is_function_p
1330 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1335 # A pre-initialized vector
1339 /* The default architecture uses host values (for want of a better
1343 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1345 printf "struct gdbarch startup_gdbarch =\n"
1347 printf " 1, /* Always initialized. */\n"
1348 printf " /* basic architecture information */\n"
1349 function_list | while do_read
1353 printf " ${staticdefault},\n"
1357 /* target specific vector and its dump routine */
1359 /*per-architecture data-pointers and swap regions */
1361 /* Multi-arch values */
1363 function_list | while do_read
1365 if class_is_function_p || class_is_variable_p
1367 printf " ${staticdefault},\n"
1371 /* startup_gdbarch() */
1374 struct gdbarch *current_gdbarch = &startup_gdbarch;
1376 /* Do any initialization needed for a non-multiarch configuration
1377 after the _initialize_MODULE functions have been run. */
1379 initialize_non_multiarch (void)
1381 alloc_gdbarch_data (&startup_gdbarch);
1382 /* Ensure that all swap areas are zeroed so that they again think
1383 they are starting from scratch. */
1384 clear_gdbarch_swap (&startup_gdbarch);
1385 init_gdbarch_swap (&startup_gdbarch);
1389 # Create a new gdbarch struct
1393 /* Create a new \`\`struct gdbarch'' based on information provided by
1394 \`\`struct gdbarch_info''. */
1399 gdbarch_alloc (const struct gdbarch_info *info,
1400 struct gdbarch_tdep *tdep)
1402 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1403 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1404 the current local architecture and not the previous global
1405 architecture. This ensures that the new architectures initial
1406 values are not influenced by the previous architecture. Once
1407 everything is parameterised with gdbarch, this will go away. */
1408 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1409 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1411 alloc_gdbarch_data (current_gdbarch);
1413 current_gdbarch->tdep = tdep;
1416 function_list | while do_read
1420 printf " current_gdbarch->${function} = info->${function};\n"
1424 printf " /* Force the explicit initialization of these. */\n"
1425 function_list | while do_read
1427 if class_is_function_p || class_is_variable_p
1429 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1431 printf " current_gdbarch->${function} = ${predefault};\n"
1436 /* gdbarch_alloc() */
1438 return current_gdbarch;
1442 # Free a gdbarch struct.
1446 /* Free a gdbarch struct. This should never happen in normal
1447 operation --- once you've created a gdbarch, you keep it around.
1448 However, if an architecture's init function encounters an error
1449 building the structure, it may need to clean up a partially
1450 constructed gdbarch. */
1453 gdbarch_free (struct gdbarch *arch)
1455 gdb_assert (arch != NULL);
1456 free_gdbarch_data (arch);
1461 # verify a new architecture
1464 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1468 verify_gdbarch (struct gdbarch *gdbarch)
1470 struct ui_file *log;
1471 struct cleanup *cleanups;
1474 /* Only perform sanity checks on a multi-arch target. */
1475 if (!GDB_MULTI_ARCH)
1477 log = mem_fileopen ();
1478 cleanups = make_cleanup_ui_file_delete (log);
1480 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1481 fprintf_unfiltered (log, "\n\tbyte-order");
1482 if (gdbarch->bfd_arch_info == NULL)
1483 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1484 /* Check those that need to be defined for the given multi-arch level. */
1486 function_list | while do_read
1488 if class_is_function_p || class_is_variable_p
1490 if [ "x${invalid_p}" = "x0" ]
1492 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1493 elif class_is_predicate_p
1495 printf " /* Skip verify of ${function}, has predicate */\n"
1496 # FIXME: See do_read for potential simplification
1497 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1499 printf " if (${invalid_p})\n"
1500 printf " gdbarch->${function} = ${postdefault};\n"
1501 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1503 printf " if (gdbarch->${function} == ${predefault})\n"
1504 printf " gdbarch->${function} = ${postdefault};\n"
1505 elif [ -n "${postdefault}" ]
1507 printf " if (gdbarch->${function} == 0)\n"
1508 printf " gdbarch->${function} = ${postdefault};\n"
1509 elif [ -n "${invalid_p}" ]
1511 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1512 printf " && (${invalid_p}))\n"
1513 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1514 elif [ -n "${predefault}" ]
1516 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1517 printf " && (gdbarch->${function} == ${predefault}))\n"
1518 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1523 buf = ui_file_xstrdup (log, &dummy);
1524 make_cleanup (xfree, buf);
1525 if (strlen (buf) > 0)
1526 internal_error (__FILE__, __LINE__,
1527 "verify_gdbarch: the following are invalid ...%s",
1529 do_cleanups (cleanups);
1533 # dump the structure
1537 /* Print out the details of the current architecture. */
1539 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1540 just happens to match the global variable \`\`current_gdbarch''. That
1541 way macros refering to that variable get the local and not the global
1542 version - ulgh. Once everything is parameterised with gdbarch, this
1546 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1548 fprintf_unfiltered (file,
1549 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1552 function_list | sort -t: +2 | while do_read
1554 # multiarch functions don't have macros.
1555 if class_is_multiarch_p
1557 printf " if (GDB_MULTI_ARCH)\n"
1558 printf " fprintf_unfiltered (file,\n"
1559 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1560 printf " (long) current_gdbarch->${function});\n"
1563 # Print the macro definition.
1564 printf "#ifdef ${macro}\n"
1565 if [ "x${returntype}" = "xvoid" ]
1567 printf "#if GDB_MULTI_ARCH\n"
1568 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1570 if class_is_function_p
1572 printf " fprintf_unfiltered (file,\n"
1573 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1574 printf " \"${macro}(${actual})\",\n"
1575 printf " XSTRING (${macro} (${actual})));\n"
1577 printf " fprintf_unfiltered (file,\n"
1578 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1579 printf " XSTRING (${macro}));\n"
1581 # Print the architecture vector value
1582 if [ "x${returntype}" = "xvoid" ]
1586 if [ "x${print_p}" = "x()" ]
1588 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1589 elif [ "x${print_p}" = "x0" ]
1591 printf " /* skip print of ${macro}, print_p == 0. */\n"
1592 elif [ -n "${print_p}" ]
1594 printf " if (${print_p})\n"
1595 printf " fprintf_unfiltered (file,\n"
1596 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1597 printf " ${print});\n"
1598 elif class_is_function_p
1600 printf " if (GDB_MULTI_ARCH)\n"
1601 printf " fprintf_unfiltered (file,\n"
1602 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1603 printf " (long) current_gdbarch->${function}\n"
1604 printf " /*${macro} ()*/);\n"
1606 printf " fprintf_unfiltered (file,\n"
1607 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1608 printf " ${print});\n"
1613 if (current_gdbarch->dump_tdep != NULL)
1614 current_gdbarch->dump_tdep (current_gdbarch, file);
1622 struct gdbarch_tdep *
1623 gdbarch_tdep (struct gdbarch *gdbarch)
1625 if (gdbarch_debug >= 2)
1626 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1627 return gdbarch->tdep;
1631 function_list | while do_read
1633 if class_is_predicate_p
1637 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1639 printf " gdb_assert (gdbarch != NULL);\n"
1640 if [ -n "${valid_p}" ]
1642 printf " return ${valid_p};\n"
1644 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1648 if class_is_function_p
1651 printf "${returntype}\n"
1652 if [ "x${formal}" = "xvoid" ]
1654 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1656 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1659 printf " gdb_assert (gdbarch != NULL);\n"
1660 printf " if (gdbarch->${function} == 0)\n"
1661 printf " internal_error (__FILE__, __LINE__,\n"
1662 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1663 printf " if (gdbarch_debug >= 2)\n"
1664 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1665 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1667 if class_is_multiarch_p
1674 if class_is_multiarch_p
1676 params="gdbarch, ${actual}"
1681 if [ "x${returntype}" = "xvoid" ]
1683 printf " gdbarch->${function} (${params});\n"
1685 printf " return gdbarch->${function} (${params});\n"
1690 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1691 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1693 printf " gdbarch->${function} = ${function};\n"
1695 elif class_is_variable_p
1698 printf "${returntype}\n"
1699 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1701 printf " gdb_assert (gdbarch != NULL);\n"
1702 if [ "x${invalid_p}" = "x0" ]
1704 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1705 elif [ -n "${invalid_p}" ]
1707 printf " if (${invalid_p})\n"
1708 printf " internal_error (__FILE__, __LINE__,\n"
1709 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1710 elif [ -n "${predefault}" ]
1712 printf " if (gdbarch->${function} == ${predefault})\n"
1713 printf " internal_error (__FILE__, __LINE__,\n"
1714 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1716 printf " if (gdbarch_debug >= 2)\n"
1717 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1718 printf " return gdbarch->${function};\n"
1722 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1723 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1725 printf " gdbarch->${function} = ${function};\n"
1727 elif class_is_info_p
1730 printf "${returntype}\n"
1731 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1733 printf " gdb_assert (gdbarch != NULL);\n"
1734 printf " if (gdbarch_debug >= 2)\n"
1735 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1736 printf " return gdbarch->${function};\n"
1741 # All the trailing guff
1745 /* Keep a registry of per-architecture data-pointers required by GDB
1752 gdbarch_data_init_ftype *init;
1753 gdbarch_data_free_ftype *free;
1756 struct gdbarch_data_registration
1758 struct gdbarch_data *data;
1759 struct gdbarch_data_registration *next;
1762 struct gdbarch_data_registry
1765 struct gdbarch_data_registration *registrations;
1768 struct gdbarch_data_registry gdbarch_data_registry =
1773 struct gdbarch_data *
1774 register_gdbarch_data (gdbarch_data_init_ftype *init,
1775 gdbarch_data_free_ftype *free)
1777 struct gdbarch_data_registration **curr;
1778 /* Append the new registraration. */
1779 for (curr = &gdbarch_data_registry.registrations;
1781 curr = &(*curr)->next);
1782 (*curr) = XMALLOC (struct gdbarch_data_registration);
1783 (*curr)->next = NULL;
1784 (*curr)->data = XMALLOC (struct gdbarch_data);
1785 (*curr)->data->index = gdbarch_data_registry.nr++;
1786 (*curr)->data->init = init;
1787 (*curr)->data->init_p = 1;
1788 (*curr)->data->free = free;
1789 return (*curr)->data;
1793 /* Create/delete the gdbarch data vector. */
1796 alloc_gdbarch_data (struct gdbarch *gdbarch)
1798 gdb_assert (gdbarch->data == NULL);
1799 gdbarch->nr_data = gdbarch_data_registry.nr;
1800 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1804 free_gdbarch_data (struct gdbarch *gdbarch)
1806 struct gdbarch_data_registration *rego;
1807 gdb_assert (gdbarch->data != NULL);
1808 for (rego = gdbarch_data_registry.registrations;
1812 struct gdbarch_data *data = rego->data;
1813 gdb_assert (data->index < gdbarch->nr_data);
1814 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1816 data->free (gdbarch, gdbarch->data[data->index]);
1817 gdbarch->data[data->index] = NULL;
1820 xfree (gdbarch->data);
1821 gdbarch->data = NULL;
1825 /* Initialize the current value of the specified per-architecture
1829 set_gdbarch_data (struct gdbarch *gdbarch,
1830 struct gdbarch_data *data,
1833 gdb_assert (data->index < gdbarch->nr_data);
1834 if (gdbarch->data[data->index] != NULL)
1836 gdb_assert (data->free != NULL);
1837 data->free (gdbarch, gdbarch->data[data->index]);
1839 gdbarch->data[data->index] = pointer;
1842 /* Return the current value of the specified per-architecture
1846 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1848 gdb_assert (data->index < gdbarch->nr_data);
1849 /* The data-pointer isn't initialized, call init() to get a value but
1850 only if the architecture initializaiton has completed. Otherwise
1851 punt - hope that the caller knows what they are doing. */
1852 if (gdbarch->data[data->index] == NULL
1853 && gdbarch->initialized_p)
1855 /* Be careful to detect an initialization cycle. */
1856 gdb_assert (data->init_p);
1858 gdb_assert (data->init != NULL);
1859 gdbarch->data[data->index] = data->init (gdbarch);
1861 gdb_assert (gdbarch->data[data->index] != NULL);
1863 return gdbarch->data[data->index];
1868 /* Keep a registry of swapped data required by GDB modules. */
1873 struct gdbarch_swap_registration *source;
1874 struct gdbarch_swap *next;
1877 struct gdbarch_swap_registration
1880 unsigned long sizeof_data;
1881 gdbarch_swap_ftype *init;
1882 struct gdbarch_swap_registration *next;
1885 struct gdbarch_swap_registry
1888 struct gdbarch_swap_registration *registrations;
1891 struct gdbarch_swap_registry gdbarch_swap_registry =
1897 register_gdbarch_swap (void *data,
1898 unsigned long sizeof_data,
1899 gdbarch_swap_ftype *init)
1901 struct gdbarch_swap_registration **rego;
1902 for (rego = &gdbarch_swap_registry.registrations;
1904 rego = &(*rego)->next);
1905 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1906 (*rego)->next = NULL;
1907 (*rego)->init = init;
1908 (*rego)->data = data;
1909 (*rego)->sizeof_data = sizeof_data;
1913 clear_gdbarch_swap (struct gdbarch *gdbarch)
1915 struct gdbarch_swap *curr;
1916 for (curr = gdbarch->swap;
1920 memset (curr->source->data, 0, curr->source->sizeof_data);
1925 init_gdbarch_swap (struct gdbarch *gdbarch)
1927 struct gdbarch_swap_registration *rego;
1928 struct gdbarch_swap **curr = &gdbarch->swap;
1929 for (rego = gdbarch_swap_registry.registrations;
1933 if (rego->data != NULL)
1935 (*curr) = XMALLOC (struct gdbarch_swap);
1936 (*curr)->source = rego;
1937 (*curr)->swap = xmalloc (rego->sizeof_data);
1938 (*curr)->next = NULL;
1939 curr = &(*curr)->next;
1941 if (rego->init != NULL)
1947 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1949 struct gdbarch_swap *curr;
1950 for (curr = gdbarch->swap;
1953 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1957 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1959 struct gdbarch_swap *curr;
1960 for (curr = gdbarch->swap;
1963 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1967 /* Keep a registry of the architectures known by GDB. */
1969 struct gdbarch_registration
1971 enum bfd_architecture bfd_architecture;
1972 gdbarch_init_ftype *init;
1973 gdbarch_dump_tdep_ftype *dump_tdep;
1974 struct gdbarch_list *arches;
1975 struct gdbarch_registration *next;
1978 static struct gdbarch_registration *gdbarch_registry = NULL;
1981 append_name (const char ***buf, int *nr, const char *name)
1983 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1989 gdbarch_printable_names (void)
1993 /* Accumulate a list of names based on the registed list of
1995 enum bfd_architecture a;
1997 const char **arches = NULL;
1998 struct gdbarch_registration *rego;
1999 for (rego = gdbarch_registry;
2003 const struct bfd_arch_info *ap;
2004 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2006 internal_error (__FILE__, __LINE__,
2007 "gdbarch_architecture_names: multi-arch unknown");
2010 append_name (&arches, &nr_arches, ap->printable_name);
2015 append_name (&arches, &nr_arches, NULL);
2019 /* Just return all the architectures that BFD knows. Assume that
2020 the legacy architecture framework supports them. */
2021 return bfd_arch_list ();
2026 gdbarch_register (enum bfd_architecture bfd_architecture,
2027 gdbarch_init_ftype *init,
2028 gdbarch_dump_tdep_ftype *dump_tdep)
2030 struct gdbarch_registration **curr;
2031 const struct bfd_arch_info *bfd_arch_info;
2032 /* Check that BFD recognizes this architecture */
2033 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2034 if (bfd_arch_info == NULL)
2036 internal_error (__FILE__, __LINE__,
2037 "gdbarch: Attempt to register unknown architecture (%d)",
2040 /* Check that we haven't seen this architecture before */
2041 for (curr = &gdbarch_registry;
2043 curr = &(*curr)->next)
2045 if (bfd_architecture == (*curr)->bfd_architecture)
2046 internal_error (__FILE__, __LINE__,
2047 "gdbarch: Duplicate registraration of architecture (%s)",
2048 bfd_arch_info->printable_name);
2052 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2053 bfd_arch_info->printable_name,
2056 (*curr) = XMALLOC (struct gdbarch_registration);
2057 (*curr)->bfd_architecture = bfd_architecture;
2058 (*curr)->init = init;
2059 (*curr)->dump_tdep = dump_tdep;
2060 (*curr)->arches = NULL;
2061 (*curr)->next = NULL;
2062 /* When non- multi-arch, install whatever target dump routine we've
2063 been provided - hopefully that routine has been written correctly
2064 and works regardless of multi-arch. */
2065 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2066 && startup_gdbarch.dump_tdep == NULL)
2067 startup_gdbarch.dump_tdep = dump_tdep;
2071 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2072 gdbarch_init_ftype *init)
2074 gdbarch_register (bfd_architecture, init, NULL);
2078 /* Look for an architecture using gdbarch_info. Base search on only
2079 BFD_ARCH_INFO and BYTE_ORDER. */
2081 struct gdbarch_list *
2082 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2083 const struct gdbarch_info *info)
2085 for (; arches != NULL; arches = arches->next)
2087 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2089 if (info->byte_order != arches->gdbarch->byte_order)
2097 /* Update the current architecture. Return ZERO if the update request
2101 gdbarch_update_p (struct gdbarch_info info)
2103 struct gdbarch *new_gdbarch;
2104 struct gdbarch *old_gdbarch;
2105 struct gdbarch_registration *rego;
2107 /* Fill in missing parts of the INFO struct using a number of
2108 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2110 /* \`\`(gdb) set architecture ...'' */
2111 if (info.bfd_arch_info == NULL
2112 && !TARGET_ARCHITECTURE_AUTO)
2113 info.bfd_arch_info = TARGET_ARCHITECTURE;
2114 if (info.bfd_arch_info == NULL
2115 && info.abfd != NULL
2116 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2117 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2118 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2119 if (info.bfd_arch_info == NULL)
2120 info.bfd_arch_info = TARGET_ARCHITECTURE;
2122 /* \`\`(gdb) set byte-order ...'' */
2123 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2124 && !TARGET_BYTE_ORDER_AUTO)
2125 info.byte_order = TARGET_BYTE_ORDER;
2126 /* From the INFO struct. */
2127 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2128 && info.abfd != NULL)
2129 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2130 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2131 : BFD_ENDIAN_UNKNOWN);
2132 /* From the current target. */
2133 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2134 info.byte_order = TARGET_BYTE_ORDER;
2136 /* Must have found some sort of architecture. */
2137 gdb_assert (info.bfd_arch_info != NULL);
2141 fprintf_unfiltered (gdb_stdlog,
2142 "gdbarch_update: info.bfd_arch_info %s\n",
2143 (info.bfd_arch_info != NULL
2144 ? info.bfd_arch_info->printable_name
2146 fprintf_unfiltered (gdb_stdlog,
2147 "gdbarch_update: info.byte_order %d (%s)\n",
2149 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2150 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2152 fprintf_unfiltered (gdb_stdlog,
2153 "gdbarch_update: info.abfd 0x%lx\n",
2155 fprintf_unfiltered (gdb_stdlog,
2156 "gdbarch_update: info.tdep_info 0x%lx\n",
2157 (long) info.tdep_info);
2160 /* Find the target that knows about this architecture. */
2161 for (rego = gdbarch_registry;
2164 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2169 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2173 /* Swap the data belonging to the old target out setting the
2174 installed data to zero. This stops the ->init() function trying
2175 to refer to the previous architecture's global data structures. */
2176 swapout_gdbarch_swap (current_gdbarch);
2177 clear_gdbarch_swap (current_gdbarch);
2179 /* Save the previously selected architecture, setting the global to
2180 NULL. This stops ->init() trying to use the previous
2181 architecture's configuration. The previous architecture may not
2182 even be of the same architecture family. The most recent
2183 architecture of the same family is found at the head of the
2184 rego->arches list. */
2185 old_gdbarch = current_gdbarch;
2186 current_gdbarch = NULL;
2188 /* Ask the target for a replacement architecture. */
2189 new_gdbarch = rego->init (info, rego->arches);
2191 /* Did the target like it? No. Reject the change and revert to the
2192 old architecture. */
2193 if (new_gdbarch == NULL)
2196 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2197 swapin_gdbarch_swap (old_gdbarch);
2198 current_gdbarch = old_gdbarch;
2202 /* Did the architecture change? No. Oops, put the old architecture
2204 if (old_gdbarch == new_gdbarch)
2207 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2209 new_gdbarch->bfd_arch_info->printable_name);
2210 swapin_gdbarch_swap (old_gdbarch);
2211 current_gdbarch = old_gdbarch;
2215 /* Is this a pre-existing architecture? Yes. Move it to the front
2216 of the list of architectures (keeping the list sorted Most
2217 Recently Used) and then copy it in. */
2219 struct gdbarch_list **list;
2220 for (list = ®o->arches;
2222 list = &(*list)->next)
2224 if ((*list)->gdbarch == new_gdbarch)
2226 struct gdbarch_list *this;
2228 fprintf_unfiltered (gdb_stdlog,
2229 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2231 new_gdbarch->bfd_arch_info->printable_name);
2234 (*list) = this->next;
2235 /* Insert in the front. */
2236 this->next = rego->arches;
2237 rego->arches = this;
2238 /* Copy the new architecture in. */
2239 current_gdbarch = new_gdbarch;
2240 swapin_gdbarch_swap (new_gdbarch);
2241 architecture_changed_event ();
2247 /* Prepend this new architecture to the architecture list (keep the
2248 list sorted Most Recently Used). */
2250 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2251 this->next = rego->arches;
2252 this->gdbarch = new_gdbarch;
2253 rego->arches = this;
2256 /* Switch to this new architecture marking it initialized. */
2257 current_gdbarch = new_gdbarch;
2258 current_gdbarch->initialized_p = 1;
2261 fprintf_unfiltered (gdb_stdlog,
2262 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2264 new_gdbarch->bfd_arch_info->printable_name);
2267 /* Check that the newly installed architecture is valid. Plug in
2268 any post init values. */
2269 new_gdbarch->dump_tdep = rego->dump_tdep;
2270 verify_gdbarch (new_gdbarch);
2272 /* Initialize the per-architecture memory (swap) areas.
2273 CURRENT_GDBARCH must be update before these modules are
2275 init_gdbarch_swap (new_gdbarch);
2277 /* Initialize the per-architecture data. CURRENT_GDBARCH
2278 must be updated before these modules are called. */
2279 architecture_changed_event ();
2282 gdbarch_dump (current_gdbarch, gdb_stdlog);
2290 /* Pointer to the target-dependent disassembly function. */
2291 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2292 disassemble_info tm_print_insn_info;
2295 extern void _initialize_gdbarch (void);
2298 _initialize_gdbarch (void)
2300 struct cmd_list_element *c;
2302 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2303 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2304 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2305 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2306 tm_print_insn_info.print_address_func = dis_asm_print_address;
2308 add_show_from_set (add_set_cmd ("arch",
2311 (char *)&gdbarch_debug,
2312 "Set architecture debugging.\\n\\
2313 When non-zero, architecture debugging is enabled.", &setdebuglist),
2315 c = add_set_cmd ("archdebug",
2318 (char *)&gdbarch_debug,
2319 "Set architecture debugging.\\n\\
2320 When non-zero, architecture debugging is enabled.", &setlist);
2322 deprecate_cmd (c, "set debug arch");
2323 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2329 #../move-if-change new-gdbarch.c gdbarch.c
2330 compare_new gdbarch.c