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.
27 echo "${file} missing? cp new-${file} ${file}" 1>&2
28 elif diff -u ${file} new-${file}
30 echo "${file} unchanged" 1>&2
32 echo "${file} has changed? cp new-${file} ${file}" 1>&2
37 # Format of the input table
38 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
46 if test "${line}" = ""
49 elif test "${line}" = "#" -a "${comment}" = ""
52 elif expr "${line}" : "#" > /dev/null
58 # The semantics of IFS varies between different SH's. Some
59 # treat ``::' as three fields while some treat it as just too.
60 # Work around this by eliminating ``::'' ....
61 line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
63 OFS="${IFS}" ; IFS="[:]"
64 eval read ${read} <<EOF
69 # .... and then going back through each field and strip out those
70 # that ended up with just that space character.
73 if eval test \"\${${r}}\" = \"\ \"
80 1 ) gt_level=">= GDB_MULTI_ARCH_PARTIAL" ;;
81 2 ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
83 * ) error "Error: bad level for ${function}" 1>&2 ; kill $$ ; exit 1 ;;
87 m ) staticdefault="${predefault}" ;;
88 M ) staticdefault="0" ;;
89 * ) test "${staticdefault}" || staticdefault=0 ;;
91 # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
92 # multi-arch defaults.
93 # test "${predefault}" || predefault=0
95 # come up with a format, use a few guesses for variables
96 case ":${class}:${fmt}:${print}:" in
98 if [ "${returntype}" = int ]
102 elif [ "${returntype}" = long ]
109 test "${fmt}" || fmt="%ld"
110 test "${print}" || print="(long) ${macro}"
112 case "${invalid_p}" in
115 if [ -n "${predefault}" ]
117 #invalid_p="gdbarch->${function} == ${predefault}"
118 valid_p="gdbarch->${function} != ${predefault}"
120 #invalid_p="gdbarch->${function} == 0"
121 valid_p="gdbarch->${function} != 0"
124 * ) valid_p="!(${invalid_p})"
127 # PREDEFAULT is a valid fallback definition of MEMBER when
128 # multi-arch is not enabled. This ensures that the
129 # default value, when multi-arch is the same as the
130 # default value when not multi-arch. POSTDEFAULT is
131 # always a valid definition of MEMBER as this again
132 # ensures consistency.
134 if [ -n "${postdefault}" ]
136 fallbackdefault="${postdefault}"
137 elif [ -n "${predefault}" ]
139 fallbackdefault="${predefault}"
144 #NOT YET: See gdbarch.log for basic verification of
159 fallback_default_p ()
161 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
162 || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
165 class_is_variable_p ()
173 class_is_function_p ()
176 *f* | *F* | *m* | *M* ) true ;;
181 class_is_multiarch_p ()
189 class_is_predicate_p ()
192 *F* | *V* | *M* ) true ;;
206 # dump out/verify the doco
216 # F -> function + predicate
217 # hiding a function + predicate to test function validity
220 # V -> variable + predicate
221 # hiding a variable + predicate to test variables validity
223 # hiding something from the ``struct info'' object
224 # m -> multi-arch function
225 # hiding a multi-arch function (parameterised with the architecture)
226 # M -> multi-arch function + predicate
227 # hiding a multi-arch function + predicate to test function validity
231 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
232 # LEVEL is a predicate on checking that a given method is
233 # initialized (using INVALID_P).
237 # The name of the MACRO that this method is to be accessed by.
241 # For functions, the return type; for variables, the data type
245 # For functions, the member function name; for variables, the
246 # variable name. Member function names are always prefixed with
247 # ``gdbarch_'' for name-space purity.
251 # The formal argument list. It is assumed that the formal
252 # argument list includes the actual name of each list element.
253 # A function with no arguments shall have ``void'' as the
254 # formal argument list.
258 # The list of actual arguments. The arguments specified shall
259 # match the FORMAL list given above. Functions with out
260 # arguments leave this blank.
264 # Any GCC attributes that should be attached to the function
265 # declaration. At present this field is unused.
269 # To help with the GDB startup a static gdbarch object is
270 # created. STATICDEFAULT is the value to insert into that
271 # static gdbarch object. Since this a static object only
272 # simple expressions can be used.
274 # If STATICDEFAULT is empty, zero is used.
278 # An initial value to assign to MEMBER of the freshly
279 # malloc()ed gdbarch object. After initialization, the
280 # freshly malloc()ed object is passed to the target
281 # architecture code for further updates.
283 # If PREDEFAULT is empty, zero is used.
285 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
286 # INVALID_P are specified, PREDEFAULT will be used as the
287 # default for the non- multi-arch target.
289 # A zero PREDEFAULT function will force the fallback to call
292 # Variable declarations can refer to ``gdbarch'' which will
293 # contain the current architecture. Care should be taken.
297 # A value to assign to MEMBER of the new gdbarch object should
298 # the target architecture code fail to change the PREDEFAULT
301 # If POSTDEFAULT is empty, no post update is performed.
303 # If both INVALID_P and POSTDEFAULT are non-empty then
304 # INVALID_P will be used to determine if MEMBER should be
305 # changed to POSTDEFAULT.
307 # If a non-empty POSTDEFAULT and a zero INVALID_P are
308 # specified, POSTDEFAULT will be used as the default for the
309 # non- multi-arch target (regardless of the value of
312 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
314 # Variable declarations can refer to ``gdbarch'' which will
315 # contain the current architecture. Care should be taken.
319 # A predicate equation that validates MEMBER. Non-zero is
320 # returned if the code creating the new architecture failed to
321 # initialize MEMBER or the initialized the member is invalid.
322 # If POSTDEFAULT is non-empty then MEMBER will be updated to
323 # that value. If POSTDEFAULT is empty then internal_error()
326 # If INVALID_P is empty, a check that MEMBER is no longer
327 # equal to PREDEFAULT is used.
329 # The expression ``0'' disables the INVALID_P check making
330 # PREDEFAULT a legitimate value.
332 # See also PREDEFAULT and POSTDEFAULT.
336 # printf style format string that can be used to print out the
337 # MEMBER. Sometimes "%s" is useful. For functions, this is
338 # ignored and the function address is printed.
340 # If FMT is empty, ``%ld'' is used.
344 # An optional equation that casts MEMBER to a value suitable
345 # for formatting by FMT.
347 # If PRINT is empty, ``(long)'' is used.
351 # An optional indicator for any predicte to wrap around the
354 # () -> Call a custom function to do the dump.
355 # exp -> Wrap print up in ``if (${print_p}) ...
356 # ``'' -> No predicate
358 # If PRINT_P is empty, ``1'' is always used.
365 echo "Bad field ${field}"
373 # See below (DOCO) for description of each field
375 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
377 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
378 # Number of bits in a char or unsigned char for the target machine.
379 # Just like CHAR_BIT in <limits.h> but describes the target machine.
380 # v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
382 # Number of bits in a short or unsigned short for the target machine.
383 v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
384 # Number of bits in an int or unsigned int for the target machine.
385 v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
386 # Number of bits in a long or unsigned long for the target machine.
387 v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
388 # Number of bits in a long long or unsigned long long for the target
390 v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
391 # Number of bits in a float for the target machine.
392 v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
393 # Number of bits in a double for the target machine.
394 v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
395 # Number of bits in a long double for the target machine.
396 v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):2*TARGET_DOUBLE_BIT::0
397 # For most targets, a pointer on the target and its representation as an
398 # address in GDB have the same size and "look the same". For such a
399 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
400 # / addr_bit will be set from it.
402 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
403 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
405 # ptr_bit is the size of a pointer on the target
406 v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
407 # addr_bit is the size of a target address as represented in gdb
408 v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
409 # Number of bits in a BFD_VMA for the target object file format.
410 v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
412 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
413 v::TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
415 f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
416 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
417 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
418 f::TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:generic_target_write_fp::0
419 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
420 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
421 # Function for getting target's idea of a frame pointer. FIXME: GDB's
422 # whole scheme for dealing with "frames" and "frame pointers" needs a
424 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
426 M:::void:register_read:int regnum, char *buf:regnum, buf:
427 M:::void:register_write:int regnum, char *buf:regnum, buf:
429 v:2:NUM_REGS:int:num_regs::::0:-1
430 # This macro gives the number of pseudo-registers that live in the
431 # register namespace but do not get fetched or stored on the target.
432 # These pseudo-registers may be aliases for other registers,
433 # combinations of other registers, or they may be computed by GDB.
434 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
435 v:2:SP_REGNUM:int:sp_regnum::::0:-1
436 v:2:FP_REGNUM:int:fp_regnum::::0:-1
437 v:2:PC_REGNUM:int:pc_regnum::::0:-1
438 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
439 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
440 v:2:NNPC_REGNUM:int:nnpc_regnum::::0:-1::0
441 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
442 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
443 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
444 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
445 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
446 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
447 # Convert from an sdb register number to an internal gdb register number.
448 # This should be defined in tm.h, if REGISTER_NAMES is not set up
449 # to map one to one onto the sdb register numbers.
450 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
451 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
452 f:2:REGISTER_NAME:char *:register_name:int regnr:regnr:::legacy_register_name::0
453 v:2:REGISTER_SIZE:int:register_size::::0:-1
454 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
455 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0
456 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_raw_size:0
457 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
458 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_virtual_size:0
459 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
460 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
461 f:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs:::do_registers_info::0
462 f:2:PRINT_FLOAT_INFO:void:print_float_info:void::::default_print_float_info::0
463 # MAP a GDB RAW register number onto a simulator register number. See
464 # also include/...-sim.h.
465 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::default_register_sim_regno::0
466 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
467 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
468 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
470 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
471 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
472 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
473 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
474 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
475 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
476 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
477 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
478 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
479 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
480 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
481 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
482 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
483 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
484 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0
485 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0
487 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
488 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
489 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
490 f:1:GET_SAVED_REGISTER:void:get_saved_register:char *raw_buffer, int *optimized, CORE_ADDR *addrp, struct frame_info *frame, int regnum, enum lval_type *lval:raw_buffer, optimized, addrp, frame, regnum, lval::generic_get_saved_register:0
492 f:2:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
493 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
494 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
495 # This function is called when the value of a pseudo-register needs to
496 # be updated. Typically it will be defined on a per-architecture
498 F:2:FETCH_PSEUDO_REGISTER:void:fetch_pseudo_register:int regnum:regnum:
499 # This function is called when the value of a pseudo-register needs to
500 # be set or stored. Typically it will be defined on a
501 # per-architecture basis.
502 F:2:STORE_PSEUDO_REGISTER:void:store_pseudo_register:int regnum:regnum:
504 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
505 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
506 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
508 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
509 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
510 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
511 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
512 F:2:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
513 f:2:POP_FRAME:void:pop_frame:void:-:::0
515 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
516 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
517 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0
518 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
520 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
521 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
523 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
524 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
525 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
526 f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
527 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
528 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
529 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
530 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
531 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
533 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
535 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
536 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
537 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
538 f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
539 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
540 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
541 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
542 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
543 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
545 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
546 v:2:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
547 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
548 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
549 v:2:PARM_BOUNDARY:int:parm_boundary
551 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
552 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
553 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)
554 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
555 # On some machines there are bits in addresses which are not really
556 # part of the address, but are used by the kernel, the hardware, etc.
557 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
558 # we get a "real" address such as one would find in a symbol table.
559 # This is used only for addresses of instructions, and even then I'm
560 # not sure it's used in all contexts. It exists to deal with there
561 # being a few stray bits in the PC which would mislead us, not as some
562 # sort of generic thing to handle alignment or segmentation (it's
563 # possible it should be in TARGET_READ_PC instead).
564 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
565 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
567 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
568 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
569 # the target needs software single step. An ISA method to implement it.
571 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
572 # using the breakpoint system instead of blatting memory directly (as with rs6000).
574 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
575 # single step. If not, then implement single step using breakpoints.
576 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
577 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
578 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
579 # For SVR4 shared libraries, each call goes through a small piece of
580 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
581 # to nonzero if we are current stopped in one of these.
582 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
583 # A target might have problems with watchpoints as soon as the stack
584 # frame of the current function has been destroyed. This mostly happens
585 # as the first action in a funtion's epilogue. in_function_epilogue_p()
586 # is defined to return a non-zero value if either the given addr is one
587 # instruction after the stack destroying instruction up to the trailing
588 # return instruction or if we can figure out that the stack frame has
589 # already been invalidated regardless of the value of addr. Targets
590 # which don't suffer from that problem could just let this functionality
592 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
593 # Given a vector of command-line arguments, return a newly allocated
594 # string which, when passed to the create_inferior function, will be
595 # parsed (on Unix systems, by the shell) to yield the same vector.
596 # This function should call error() if the argument vector is not
597 # representable for this target or if this target does not support
598 # command-line arguments.
599 # ARGC is the number of elements in the vector.
600 # ARGV is an array of strings, one per argument.
601 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
602 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
603 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
604 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
611 exec > new-gdbarch.log
612 function_list | while do_read
615 ${class} ${macro}(${actual})
616 ${returntype} ${function} ($formal)${attrib}
620 eval echo \"\ \ \ \ ${r}=\${${r}}\"
622 # #fallbackdefault=${fallbackdefault}
623 # #valid_p=${valid_p}
625 if class_is_predicate_p && fallback_default_p
627 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
631 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
633 echo "Error: postdefault is useless when invalid_p=0" 1>&2
637 if class_is_multiarch_p
639 if class_is_predicate_p ; then :
640 elif test "x${predefault}" = "x"
642 echo "Error: pure multi-arch function must have a predefault" 1>&2
651 compare_new gdbarch.log
657 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
659 /* Dynamic architecture support for GDB, the GNU debugger.
660 Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
662 This file is part of GDB.
664 This program is free software; you can redistribute it and/or modify
665 it under the terms of the GNU General Public License as published by
666 the Free Software Foundation; either version 2 of the License, or
667 (at your option) any later version.
669 This program is distributed in the hope that it will be useful,
670 but WITHOUT ANY WARRANTY; without even the implied warranty of
671 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
672 GNU General Public License for more details.
674 You should have received a copy of the GNU General Public License
675 along with this program; if not, write to the Free Software
676 Foundation, Inc., 59 Temple Place - Suite 330,
677 Boston, MA 02111-1307, USA. */
679 /* This file was created with the aid of \`\`gdbarch.sh''.
681 The Bourne shell script \`\`gdbarch.sh'' creates the files
682 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
683 against the existing \`\`gdbarch.[hc]''. Any differences found
686 If editing this file, please also run gdbarch.sh and merge any
687 changes into that script. Conversely, when making sweeping changes
688 to this file, modifying gdbarch.sh and using its output may prove
704 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
706 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
712 struct minimal_symbol;
714 extern struct gdbarch *current_gdbarch;
717 /* If any of the following are defined, the target wasn't correctly
721 #if defined (EXTRA_FRAME_INFO)
722 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
727 #if defined (FRAME_FIND_SAVED_REGS)
728 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
732 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
733 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
740 printf "/* The following are pre-initialized by GDBARCH. */\n"
741 function_list | while do_read
746 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
747 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
748 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
749 printf "#error \"Non multi-arch definition of ${macro}\"\n"
751 printf "#if GDB_MULTI_ARCH\n"
752 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
753 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
762 printf "/* The following are initialized by the target dependent code. */\n"
763 function_list | while do_read
765 if [ -n "${comment}" ]
767 echo "${comment}" | sed \
772 if class_is_multiarch_p
774 if class_is_predicate_p
777 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
780 if class_is_predicate_p
783 printf "#if defined (${macro})\n"
784 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
785 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
786 printf "#if !defined (${macro}_P)\n"
787 printf "#define ${macro}_P() (1)\n"
791 printf "/* Default predicate for non- multi-arch targets. */\n"
792 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
793 printf "#define ${macro}_P() (0)\n"
796 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
797 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro}_P)\n"
798 printf "#error \"Non multi-arch definition of ${macro}\"\n"
800 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro}_P)\n"
801 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
805 if class_is_variable_p
807 if fallback_default_p || class_is_predicate_p
810 printf "/* Default (value) for non- multi-arch platforms. */\n"
811 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
812 echo "#define ${macro} (${fallbackdefault})" \
813 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
817 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
818 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
819 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
820 printf "#error \"Non multi-arch definition of ${macro}\"\n"
822 printf "#if GDB_MULTI_ARCH\n"
823 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
824 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
828 if class_is_function_p
830 if class_is_multiarch_p ; then :
831 elif fallback_default_p || class_is_predicate_p
834 printf "/* Default (function) for non- multi-arch platforms. */\n"
835 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
836 if [ "x${fallbackdefault}" = "x0" ]
838 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
840 # FIXME: Should be passing current_gdbarch through!
841 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
842 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
847 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
849 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
850 elif class_is_multiarch_p
852 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
854 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
856 if [ "x${formal}" = "xvoid" ]
858 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
860 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
862 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
863 if class_is_multiarch_p ; then :
865 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
866 printf "#error \"Non multi-arch definition of ${macro}\"\n"
868 printf "#if GDB_MULTI_ARCH\n"
869 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
870 if [ "x${actual}" = "x" ]
872 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
873 elif [ "x${actual}" = "x-" ]
875 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
877 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
888 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
891 /* Mechanism for co-ordinating the selection of a specific
894 GDB targets (*-tdep.c) can register an interest in a specific
895 architecture. Other GDB components can register a need to maintain
896 per-architecture data.
898 The mechanisms below ensures that there is only a loose connection
899 between the set-architecture command and the various GDB
900 components. Each component can independently register their need
901 to maintain architecture specific data with gdbarch.
905 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
908 The more traditional mega-struct containing architecture specific
909 data for all the various GDB components was also considered. Since
910 GDB is built from a variable number of (fairly independent)
911 components it was determined that the global aproach was not
915 /* Register a new architectural family with GDB.
917 Register support for the specified ARCHITECTURE with GDB. When
918 gdbarch determines that the specified architecture has been
919 selected, the corresponding INIT function is called.
923 The INIT function takes two parameters: INFO which contains the
924 information available to gdbarch about the (possibly new)
925 architecture; ARCHES which is a list of the previously created
926 \`\`struct gdbarch'' for this architecture.
928 The INIT function parameter INFO shall, as far as possible, be
929 pre-initialized with information obtained from INFO.ABFD or
930 previously selected architecture (if similar).
932 The INIT function shall return any of: NULL - indicating that it
933 doesn't recognize the selected architecture; an existing \`\`struct
934 gdbarch'' from the ARCHES list - indicating that the new
935 architecture is just a synonym for an earlier architecture (see
936 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
937 - that describes the selected architecture (see gdbarch_alloc()).
939 The DUMP_TDEP function shall print out all target specific values.
940 Care should be taken to ensure that the function works in both the
941 multi-arch and non- multi-arch cases. */
945 struct gdbarch *gdbarch;
946 struct gdbarch_list *next;
951 /* Use default: NULL (ZERO). */
952 const struct bfd_arch_info *bfd_arch_info;
954 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
957 /* Use default: NULL (ZERO). */
960 /* Use default: NULL (ZERO). */
961 struct gdbarch_tdep_info *tdep_info;
964 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
965 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
967 /* DEPRECATED - use gdbarch_register() */
968 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
970 extern void gdbarch_register (enum bfd_architecture architecture,
971 gdbarch_init_ftype *,
972 gdbarch_dump_tdep_ftype *);
975 /* Return a freshly allocated, NULL terminated, array of the valid
976 architecture names. Since architectures are registered during the
977 _initialize phase this function only returns useful information
978 once initialization has been completed. */
980 extern const char **gdbarch_printable_names (void);
983 /* Helper function. Search the list of ARCHES for a GDBARCH that
984 matches the information provided by INFO. */
986 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
989 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
990 basic initialization using values obtained from the INFO andTDEP
991 parameters. set_gdbarch_*() functions are called to complete the
992 initialization of the object. */
994 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
997 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
998 It is assumed that the caller freeds the \`\`struct
1001 extern void gdbarch_free (struct gdbarch *);
1004 /* Helper function. Force an update of the current architecture.
1006 The actual architecture selected is determined by INFO, \`\`(gdb) set
1007 architecture'' et.al., the existing architecture and BFD's default
1008 architecture. INFO should be initialized to zero and then selected
1009 fields should be updated.
1011 Returns non-zero if the update succeeds */
1013 extern int gdbarch_update_p (struct gdbarch_info info);
1017 /* Register per-architecture data-pointer.
1019 Reserve space for a per-architecture data-pointer. An identifier
1020 for the reserved data-pointer is returned. That identifer should
1021 be saved in a local static variable.
1023 The per-architecture data-pointer can be initialized in one of two
1024 ways: The value can be set explicitly using a call to
1025 set_gdbarch_data(); the value can be set implicitly using the value
1026 returned by a non-NULL INIT() callback. INIT(), when non-NULL is
1027 called after the basic architecture vector has been created.
1029 When a previously created architecture is re-selected, the
1030 per-architecture data-pointer for that previous architecture is
1031 restored. INIT() is not called.
1033 During initialization, multiple assignments of the data-pointer are
1034 allowed, non-NULL values are deleted by calling FREE(). If the
1035 architecture is deleted using gdbarch_free() all non-NULL data
1036 pointers are also deleted using FREE().
1038 Multiple registrarants for any architecture are allowed (and
1039 strongly encouraged). */
1041 struct gdbarch_data;
1043 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1044 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1046 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1047 gdbarch_data_free_ftype *free);
1048 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1049 struct gdbarch_data *data,
1052 extern void *gdbarch_data (struct gdbarch_data*);
1055 /* Register per-architecture memory region.
1057 Provide a memory-region swap mechanism. Per-architecture memory
1058 region are created. These memory regions are swapped whenever the
1059 architecture is changed. For a new architecture, the memory region
1060 is initialized with zero (0) and the INIT function is called.
1062 Memory regions are swapped / initialized in the order that they are
1063 registered. NULL DATA and/or INIT values can be specified.
1065 New code should use register_gdbarch_data(). */
1067 typedef void (gdbarch_swap_ftype) (void);
1068 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1069 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1073 /* The target-system-dependent byte order is dynamic */
1075 extern int target_byte_order;
1076 #ifndef TARGET_BYTE_ORDER
1077 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1080 extern int target_byte_order_auto;
1081 #ifndef TARGET_BYTE_ORDER_AUTO
1082 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1087 /* The target-system-dependent BFD architecture is dynamic */
1089 extern int target_architecture_auto;
1090 #ifndef TARGET_ARCHITECTURE_AUTO
1091 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1094 extern const struct bfd_arch_info *target_architecture;
1095 #ifndef TARGET_ARCHITECTURE
1096 #define TARGET_ARCHITECTURE (target_architecture + 0)
1100 /* The target-system-dependent disassembler is semi-dynamic */
1102 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1103 unsigned int len, disassemble_info *info);
1105 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1106 disassemble_info *info);
1108 extern void dis_asm_print_address (bfd_vma addr,
1109 disassemble_info *info);
1111 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1112 extern disassemble_info tm_print_insn_info;
1113 #ifndef TARGET_PRINT_INSN_INFO
1114 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1119 /* Set the dynamic target-system-dependent parameters (architecture,
1120 byte-order, ...) using information found in the BFD */
1122 extern void set_gdbarch_from_file (bfd *);
1125 /* Initialize the current architecture to the "first" one we find on
1128 extern void initialize_current_architecture (void);
1130 /* For non-multiarched targets, do any initialization of the default
1131 gdbarch object necessary after the _initialize_MODULE functions
1133 extern void initialize_non_multiarch ();
1135 /* gdbarch trace variable */
1136 extern int gdbarch_debug;
1138 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1143 #../move-if-change new-gdbarch.h gdbarch.h
1144 compare_new gdbarch.h
1151 exec > new-gdbarch.c
1156 #include "arch-utils.h"
1160 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1162 /* Just include everything in sight so that the every old definition
1163 of macro is visible. */
1164 #include "gdb_string.h"
1168 #include "inferior.h"
1169 #include "breakpoint.h"
1170 #include "gdb_wait.h"
1171 #include "gdbcore.h"
1174 #include "gdbthread.h"
1175 #include "annotate.h"
1176 #include "symfile.h" /* for overlay functions */
1177 #include "value.h" /* For old tm.h/nm.h macros. */
1181 #include "floatformat.h"
1183 #include "gdb_assert.h"
1184 #include "gdb-events.h"
1186 /* Static function declarations */
1188 static void verify_gdbarch (struct gdbarch *gdbarch);
1189 static void alloc_gdbarch_data (struct gdbarch *);
1190 static void init_gdbarch_data (struct gdbarch *);
1191 static void free_gdbarch_data (struct gdbarch *);
1192 static void init_gdbarch_swap (struct gdbarch *);
1193 static void swapout_gdbarch_swap (struct gdbarch *);
1194 static void swapin_gdbarch_swap (struct gdbarch *);
1196 /* Convenience macro for allocting typesafe memory. */
1199 #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
1203 /* Non-zero if we want to trace architecture code. */
1205 #ifndef GDBARCH_DEBUG
1206 #define GDBARCH_DEBUG 0
1208 int gdbarch_debug = GDBARCH_DEBUG;
1212 # gdbarch open the gdbarch object
1214 printf "/* Maintain the struct gdbarch object */\n"
1216 printf "struct gdbarch\n"
1218 printf " /* basic architectural information */\n"
1219 function_list | while do_read
1223 printf " ${returntype} ${function};\n"
1227 printf " /* target specific vector. */\n"
1228 printf " struct gdbarch_tdep *tdep;\n"
1229 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1231 printf " /* per-architecture data-pointers */\n"
1232 printf " unsigned nr_data;\n"
1233 printf " void **data;\n"
1235 printf " /* per-architecture swap-regions */\n"
1236 printf " struct gdbarch_swap *swap;\n"
1239 /* Multi-arch values.
1241 When extending this structure you must:
1243 Add the field below.
1245 Declare set/get functions and define the corresponding
1248 gdbarch_alloc(): If zero/NULL is not a suitable default,
1249 initialize the new field.
1251 verify_gdbarch(): Confirm that the target updated the field
1254 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1257 \`\`startup_gdbarch()'': Append an initial value to the static
1258 variable (base values on the host's c-type system).
1260 get_gdbarch(): Implement the set/get functions (probably using
1261 the macro's as shortcuts).
1266 function_list | while do_read
1268 if class_is_variable_p
1270 printf " ${returntype} ${function};\n"
1271 elif class_is_function_p
1273 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1278 # A pre-initialized vector
1282 /* The default architecture uses host values (for want of a better
1286 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1288 printf "struct gdbarch startup_gdbarch =\n"
1290 printf " /* basic architecture information */\n"
1291 function_list | while do_read
1295 printf " ${staticdefault},\n"
1299 /* target specific vector and its dump routine */
1301 /*per-architecture data-pointers and swap regions */
1303 /* Multi-arch values */
1305 function_list | while do_read
1307 if class_is_function_p || class_is_variable_p
1309 printf " ${staticdefault},\n"
1313 /* startup_gdbarch() */
1316 struct gdbarch *current_gdbarch = &startup_gdbarch;
1318 /* Do any initialization needed for a non-multiarch configuration
1319 after the _initialize_MODULE functions have been run. */
1321 initialize_non_multiarch ()
1323 alloc_gdbarch_data (&startup_gdbarch);
1324 init_gdbarch_data (&startup_gdbarch);
1328 # Create a new gdbarch struct
1332 /* Create a new \`\`struct gdbarch'' based on information provided by
1333 \`\`struct gdbarch_info''. */
1338 gdbarch_alloc (const struct gdbarch_info *info,
1339 struct gdbarch_tdep *tdep)
1341 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1342 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1343 the current local architecture and not the previous global
1344 architecture. This ensures that the new architectures initial
1345 values are not influenced by the previous architecture. Once
1346 everything is parameterised with gdbarch, this will go away. */
1347 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1348 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1350 alloc_gdbarch_data (current_gdbarch);
1352 current_gdbarch->tdep = tdep;
1355 function_list | while do_read
1359 printf " current_gdbarch->${function} = info->${function};\n"
1363 printf " /* Force the explicit initialization of these. */\n"
1364 function_list | while do_read
1366 if class_is_function_p || class_is_variable_p
1368 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1370 printf " current_gdbarch->${function} = ${predefault};\n"
1375 /* gdbarch_alloc() */
1377 return current_gdbarch;
1381 # Free a gdbarch struct.
1385 /* Free a gdbarch struct. This should never happen in normal
1386 operation --- once you've created a gdbarch, you keep it around.
1387 However, if an architecture's init function encounters an error
1388 building the structure, it may need to clean up a partially
1389 constructed gdbarch. */
1392 gdbarch_free (struct gdbarch *arch)
1394 gdb_assert (arch != NULL);
1395 free_gdbarch_data (arch);
1400 # verify a new architecture
1403 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1407 verify_gdbarch (struct gdbarch *gdbarch)
1409 struct ui_file *log;
1410 struct cleanup *cleanups;
1413 /* Only perform sanity checks on a multi-arch target. */
1414 if (!GDB_MULTI_ARCH)
1416 log = mem_fileopen ();
1417 cleanups = make_cleanup_ui_file_delete (log);
1419 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1420 fprintf_unfiltered (log, "\n\tbyte-order");
1421 if (gdbarch->bfd_arch_info == NULL)
1422 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1423 /* Check those that need to be defined for the given multi-arch level. */
1425 function_list | while do_read
1427 if class_is_function_p || class_is_variable_p
1429 if [ "x${invalid_p}" = "x0" ]
1431 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1432 elif class_is_predicate_p
1434 printf " /* Skip verify of ${function}, has predicate */\n"
1435 # FIXME: See do_read for potential simplification
1436 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1438 printf " if (${invalid_p})\n"
1439 printf " gdbarch->${function} = ${postdefault};\n"
1440 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1442 printf " if (gdbarch->${function} == ${predefault})\n"
1443 printf " gdbarch->${function} = ${postdefault};\n"
1444 elif [ -n "${postdefault}" ]
1446 printf " if (gdbarch->${function} == 0)\n"
1447 printf " gdbarch->${function} = ${postdefault};\n"
1448 elif [ -n "${invalid_p}" ]
1450 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1451 printf " && (${invalid_p}))\n"
1452 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1453 elif [ -n "${predefault}" ]
1455 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1456 printf " && (gdbarch->${function} == ${predefault}))\n"
1457 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1462 buf = ui_file_xstrdup (log, &dummy);
1463 make_cleanup (xfree, buf);
1464 if (strlen (buf) > 0)
1465 internal_error (__FILE__, __LINE__,
1466 "verify_gdbarch: the following are invalid ...%s",
1468 do_cleanups (cleanups);
1472 # dump the structure
1476 /* Print out the details of the current architecture. */
1478 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1479 just happens to match the global variable \`\`current_gdbarch''. That
1480 way macros refering to that variable get the local and not the global
1481 version - ulgh. Once everything is parameterised with gdbarch, this
1485 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1487 fprintf_unfiltered (file,
1488 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1491 function_list | sort -t: +2 | while do_read
1493 # multiarch functions don't have macros.
1494 if class_is_multiarch_p
1496 printf " if (GDB_MULTI_ARCH)\n"
1497 printf " fprintf_unfiltered (file,\n"
1498 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1499 printf " (long) current_gdbarch->${function});\n"
1502 # Print the macro definition.
1503 printf "#ifdef ${macro}\n"
1504 if [ "x${returntype}" = "xvoid" ]
1506 printf "#if GDB_MULTI_ARCH\n"
1507 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1509 if class_is_function_p
1511 printf " fprintf_unfiltered (file,\n"
1512 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1513 printf " \"${macro}(${actual})\",\n"
1514 printf " XSTRING (${macro} (${actual})));\n"
1516 printf " fprintf_unfiltered (file,\n"
1517 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1518 printf " XSTRING (${macro}));\n"
1520 # Print the architecture vector value
1521 if [ "x${returntype}" = "xvoid" ]
1525 if [ "x${print_p}" = "x()" ]
1527 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1528 elif [ "x${print_p}" = "x0" ]
1530 printf " /* skip print of ${macro}, print_p == 0. */\n"
1531 elif [ -n "${print_p}" ]
1533 printf " if (${print_p})\n"
1534 printf " fprintf_unfiltered (file,\n"
1535 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1536 printf " ${print});\n"
1537 elif class_is_function_p
1539 printf " if (GDB_MULTI_ARCH)\n"
1540 printf " fprintf_unfiltered (file,\n"
1541 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1542 printf " (long) current_gdbarch->${function}\n"
1543 printf " /*${macro} ()*/);\n"
1545 printf " fprintf_unfiltered (file,\n"
1546 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1547 printf " ${print});\n"
1552 if (current_gdbarch->dump_tdep != NULL)
1553 current_gdbarch->dump_tdep (current_gdbarch, file);
1561 struct gdbarch_tdep *
1562 gdbarch_tdep (struct gdbarch *gdbarch)
1564 if (gdbarch_debug >= 2)
1565 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1566 return gdbarch->tdep;
1570 function_list | while do_read
1572 if class_is_predicate_p
1576 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1578 if [ -n "${valid_p}" ]
1580 printf " return ${valid_p};\n"
1582 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1586 if class_is_function_p
1589 printf "${returntype}\n"
1590 if [ "x${formal}" = "xvoid" ]
1592 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1594 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1597 printf " if (gdbarch->${function} == 0)\n"
1598 printf " internal_error (__FILE__, __LINE__,\n"
1599 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1600 printf " if (gdbarch_debug >= 2)\n"
1601 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1602 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1604 if class_is_multiarch_p
1611 if class_is_multiarch_p
1613 params="gdbarch, ${actual}"
1618 if [ "x${returntype}" = "xvoid" ]
1620 printf " gdbarch->${function} (${params});\n"
1622 printf " return gdbarch->${function} (${params});\n"
1627 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1628 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1630 printf " gdbarch->${function} = ${function};\n"
1632 elif class_is_variable_p
1635 printf "${returntype}\n"
1636 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1638 if [ "x${invalid_p}" = "x0" ]
1640 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1641 elif [ -n "${invalid_p}" ]
1643 printf " if (${invalid_p})\n"
1644 printf " internal_error (__FILE__, __LINE__,\n"
1645 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1646 elif [ -n "${predefault}" ]
1648 printf " if (gdbarch->${function} == ${predefault})\n"
1649 printf " internal_error (__FILE__, __LINE__,\n"
1650 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1652 printf " if (gdbarch_debug >= 2)\n"
1653 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1654 printf " return gdbarch->${function};\n"
1658 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1659 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1661 printf " gdbarch->${function} = ${function};\n"
1663 elif class_is_info_p
1666 printf "${returntype}\n"
1667 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1669 printf " if (gdbarch_debug >= 2)\n"
1670 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1671 printf " return gdbarch->${function};\n"
1676 # All the trailing guff
1680 /* Keep a registry of per-architecture data-pointers required by GDB
1686 gdbarch_data_init_ftype *init;
1687 gdbarch_data_free_ftype *free;
1690 struct gdbarch_data_registration
1692 struct gdbarch_data *data;
1693 struct gdbarch_data_registration *next;
1696 struct gdbarch_data_registry
1699 struct gdbarch_data_registration *registrations;
1702 struct gdbarch_data_registry gdbarch_data_registry =
1707 struct gdbarch_data *
1708 register_gdbarch_data (gdbarch_data_init_ftype *init,
1709 gdbarch_data_free_ftype *free)
1711 struct gdbarch_data_registration **curr;
1712 for (curr = &gdbarch_data_registry.registrations;
1714 curr = &(*curr)->next);
1715 (*curr) = XMALLOC (struct gdbarch_data_registration);
1716 (*curr)->next = NULL;
1717 (*curr)->data = XMALLOC (struct gdbarch_data);
1718 (*curr)->data->index = gdbarch_data_registry.nr++;
1719 (*curr)->data->init = init;
1720 (*curr)->data->free = free;
1721 return (*curr)->data;
1725 /* Walk through all the registered users initializing each in turn. */
1728 init_gdbarch_data (struct gdbarch *gdbarch)
1730 struct gdbarch_data_registration *rego;
1731 for (rego = gdbarch_data_registry.registrations;
1735 struct gdbarch_data *data = rego->data;
1736 gdb_assert (data->index < gdbarch->nr_data);
1737 if (data->init != NULL)
1739 void *pointer = data->init (gdbarch);
1740 set_gdbarch_data (gdbarch, data, pointer);
1745 /* Create/delete the gdbarch data vector. */
1748 alloc_gdbarch_data (struct gdbarch *gdbarch)
1750 gdb_assert (gdbarch->data == NULL);
1751 gdbarch->nr_data = gdbarch_data_registry.nr;
1752 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1756 free_gdbarch_data (struct gdbarch *gdbarch)
1758 struct gdbarch_data_registration *rego;
1759 gdb_assert (gdbarch->data != NULL);
1760 for (rego = gdbarch_data_registry.registrations;
1764 struct gdbarch_data *data = rego->data;
1765 gdb_assert (data->index < gdbarch->nr_data);
1766 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1768 data->free (gdbarch, gdbarch->data[data->index]);
1769 gdbarch->data[data->index] = NULL;
1772 xfree (gdbarch->data);
1773 gdbarch->data = NULL;
1777 /* Initialize the current value of thee specified per-architecture
1781 set_gdbarch_data (struct gdbarch *gdbarch,
1782 struct gdbarch_data *data,
1785 gdb_assert (data->index < gdbarch->nr_data);
1786 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1787 data->free (gdbarch, gdbarch->data[data->index]);
1788 gdbarch->data[data->index] = pointer;
1791 /* Return the current value of the specified per-architecture
1795 gdbarch_data (struct gdbarch_data *data)
1797 gdb_assert (data->index < current_gdbarch->nr_data);
1798 return current_gdbarch->data[data->index];
1803 /* Keep a registry of swapped data required by GDB modules. */
1808 struct gdbarch_swap_registration *source;
1809 struct gdbarch_swap *next;
1812 struct gdbarch_swap_registration
1815 unsigned long sizeof_data;
1816 gdbarch_swap_ftype *init;
1817 struct gdbarch_swap_registration *next;
1820 struct gdbarch_swap_registry
1823 struct gdbarch_swap_registration *registrations;
1826 struct gdbarch_swap_registry gdbarch_swap_registry =
1832 register_gdbarch_swap (void *data,
1833 unsigned long sizeof_data,
1834 gdbarch_swap_ftype *init)
1836 struct gdbarch_swap_registration **rego;
1837 for (rego = &gdbarch_swap_registry.registrations;
1839 rego = &(*rego)->next);
1840 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1841 (*rego)->next = NULL;
1842 (*rego)->init = init;
1843 (*rego)->data = data;
1844 (*rego)->sizeof_data = sizeof_data;
1849 init_gdbarch_swap (struct gdbarch *gdbarch)
1851 struct gdbarch_swap_registration *rego;
1852 struct gdbarch_swap **curr = &gdbarch->swap;
1853 for (rego = gdbarch_swap_registry.registrations;
1857 if (rego->data != NULL)
1859 (*curr) = XMALLOC (struct gdbarch_swap);
1860 (*curr)->source = rego;
1861 (*curr)->swap = xmalloc (rego->sizeof_data);
1862 (*curr)->next = NULL;
1863 memset (rego->data, 0, rego->sizeof_data);
1864 curr = &(*curr)->next;
1866 if (rego->init != NULL)
1872 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1874 struct gdbarch_swap *curr;
1875 for (curr = gdbarch->swap;
1878 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1882 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1884 struct gdbarch_swap *curr;
1885 for (curr = gdbarch->swap;
1888 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1892 /* Keep a registry of the architectures known by GDB. */
1894 struct gdbarch_registration
1896 enum bfd_architecture bfd_architecture;
1897 gdbarch_init_ftype *init;
1898 gdbarch_dump_tdep_ftype *dump_tdep;
1899 struct gdbarch_list *arches;
1900 struct gdbarch_registration *next;
1903 static struct gdbarch_registration *gdbarch_registry = NULL;
1906 append_name (const char ***buf, int *nr, const char *name)
1908 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1914 gdbarch_printable_names (void)
1918 /* Accumulate a list of names based on the registed list of
1920 enum bfd_architecture a;
1922 const char **arches = NULL;
1923 struct gdbarch_registration *rego;
1924 for (rego = gdbarch_registry;
1928 const struct bfd_arch_info *ap;
1929 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1931 internal_error (__FILE__, __LINE__,
1932 "gdbarch_architecture_names: multi-arch unknown");
1935 append_name (&arches, &nr_arches, ap->printable_name);
1940 append_name (&arches, &nr_arches, NULL);
1944 /* Just return all the architectures that BFD knows. Assume that
1945 the legacy architecture framework supports them. */
1946 return bfd_arch_list ();
1951 gdbarch_register (enum bfd_architecture bfd_architecture,
1952 gdbarch_init_ftype *init,
1953 gdbarch_dump_tdep_ftype *dump_tdep)
1955 struct gdbarch_registration **curr;
1956 const struct bfd_arch_info *bfd_arch_info;
1957 /* Check that BFD recognizes this architecture */
1958 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1959 if (bfd_arch_info == NULL)
1961 internal_error (__FILE__, __LINE__,
1962 "gdbarch: Attempt to register unknown architecture (%d)",
1965 /* Check that we haven't seen this architecture before */
1966 for (curr = &gdbarch_registry;
1968 curr = &(*curr)->next)
1970 if (bfd_architecture == (*curr)->bfd_architecture)
1971 internal_error (__FILE__, __LINE__,
1972 "gdbarch: Duplicate registraration of architecture (%s)",
1973 bfd_arch_info->printable_name);
1977 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1978 bfd_arch_info->printable_name,
1981 (*curr) = XMALLOC (struct gdbarch_registration);
1982 (*curr)->bfd_architecture = bfd_architecture;
1983 (*curr)->init = init;
1984 (*curr)->dump_tdep = dump_tdep;
1985 (*curr)->arches = NULL;
1986 (*curr)->next = NULL;
1987 /* When non- multi-arch, install whatever target dump routine we've
1988 been provided - hopefully that routine has been written correctly
1989 and works regardless of multi-arch. */
1990 if (!GDB_MULTI_ARCH && dump_tdep != NULL
1991 && startup_gdbarch.dump_tdep == NULL)
1992 startup_gdbarch.dump_tdep = dump_tdep;
1996 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1997 gdbarch_init_ftype *init)
1999 gdbarch_register (bfd_architecture, init, NULL);
2003 /* Look for an architecture using gdbarch_info. Base search on only
2004 BFD_ARCH_INFO and BYTE_ORDER. */
2006 struct gdbarch_list *
2007 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2008 const struct gdbarch_info *info)
2010 for (; arches != NULL; arches = arches->next)
2012 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2014 if (info->byte_order != arches->gdbarch->byte_order)
2022 /* Update the current architecture. Return ZERO if the update request
2026 gdbarch_update_p (struct gdbarch_info info)
2028 struct gdbarch *new_gdbarch;
2029 struct gdbarch_list **list;
2030 struct gdbarch_registration *rego;
2032 /* Fill in missing parts of the INFO struct using a number of
2033 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2035 /* \`\`(gdb) set architecture ...'' */
2036 if (info.bfd_arch_info == NULL
2037 && !TARGET_ARCHITECTURE_AUTO)
2038 info.bfd_arch_info = TARGET_ARCHITECTURE;
2039 if (info.bfd_arch_info == NULL
2040 && info.abfd != NULL
2041 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2042 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2043 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2044 if (info.bfd_arch_info == NULL)
2045 info.bfd_arch_info = TARGET_ARCHITECTURE;
2047 /* \`\`(gdb) set byte-order ...'' */
2048 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2049 && !TARGET_BYTE_ORDER_AUTO)
2050 info.byte_order = TARGET_BYTE_ORDER;
2051 /* From the INFO struct. */
2052 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2053 && info.abfd != NULL)
2054 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2055 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2056 : BFD_ENDIAN_UNKNOWN);
2057 /* From the current target. */
2058 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2059 info.byte_order = TARGET_BYTE_ORDER;
2061 /* Must have found some sort of architecture. */
2062 gdb_assert (info.bfd_arch_info != NULL);
2066 fprintf_unfiltered (gdb_stdlog,
2067 "gdbarch_update: info.bfd_arch_info %s\n",
2068 (info.bfd_arch_info != NULL
2069 ? info.bfd_arch_info->printable_name
2071 fprintf_unfiltered (gdb_stdlog,
2072 "gdbarch_update: info.byte_order %d (%s)\n",
2074 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2075 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2077 fprintf_unfiltered (gdb_stdlog,
2078 "gdbarch_update: info.abfd 0x%lx\n",
2080 fprintf_unfiltered (gdb_stdlog,
2081 "gdbarch_update: info.tdep_info 0x%lx\n",
2082 (long) info.tdep_info);
2085 /* Find the target that knows about this architecture. */
2086 for (rego = gdbarch_registry;
2089 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2094 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2098 /* Ask the target for a replacement architecture. */
2099 new_gdbarch = rego->init (info, rego->arches);
2101 /* Did the target like it? No. Reject the change. */
2102 if (new_gdbarch == NULL)
2105 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2109 /* Did the architecture change? No. Do nothing. */
2110 if (current_gdbarch == new_gdbarch)
2113 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2115 new_gdbarch->bfd_arch_info->printable_name);
2119 /* Swap all data belonging to the old target out */
2120 swapout_gdbarch_swap (current_gdbarch);
2122 /* Is this a pre-existing architecture? Yes. Swap it in. */
2123 for (list = ®o->arches;
2125 list = &(*list)->next)
2127 if ((*list)->gdbarch == new_gdbarch)
2130 fprintf_unfiltered (gdb_stdlog,
2131 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\\n",
2133 new_gdbarch->bfd_arch_info->printable_name);
2134 current_gdbarch = new_gdbarch;
2135 swapin_gdbarch_swap (new_gdbarch);
2136 architecture_changed_event ();
2141 /* Append this new architecture to this targets list. */
2142 (*list) = XMALLOC (struct gdbarch_list);
2143 (*list)->next = NULL;
2144 (*list)->gdbarch = new_gdbarch;
2146 /* Switch to this new architecture. Dump it out. */
2147 current_gdbarch = new_gdbarch;
2150 fprintf_unfiltered (gdb_stdlog,
2151 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2153 new_gdbarch->bfd_arch_info->printable_name);
2156 /* Check that the newly installed architecture is valid. Plug in
2157 any post init values. */
2158 new_gdbarch->dump_tdep = rego->dump_tdep;
2159 verify_gdbarch (new_gdbarch);
2161 /* Initialize the per-architecture memory (swap) areas.
2162 CURRENT_GDBARCH must be update before these modules are
2164 init_gdbarch_swap (new_gdbarch);
2166 /* Initialize the per-architecture data-pointer of all parties that
2167 registered an interest in this architecture. CURRENT_GDBARCH
2168 must be updated before these modules are called. */
2169 init_gdbarch_data (new_gdbarch);
2170 architecture_changed_event ();
2173 gdbarch_dump (current_gdbarch, gdb_stdlog);
2181 /* Pointer to the target-dependent disassembly function. */
2182 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2183 disassemble_info tm_print_insn_info;
2186 extern void _initialize_gdbarch (void);
2189 _initialize_gdbarch (void)
2191 struct cmd_list_element *c;
2193 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2194 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2195 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2196 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2197 tm_print_insn_info.print_address_func = dis_asm_print_address;
2199 add_show_from_set (add_set_cmd ("arch",
2202 (char *)&gdbarch_debug,
2203 "Set architecture debugging.\\n\\
2204 When non-zero, architecture debugging is enabled.", &setdebuglist),
2206 c = add_set_cmd ("archdebug",
2209 (char *)&gdbarch_debug,
2210 "Set architecture debugging.\\n\\
2211 When non-zero, architecture debugging is enabled.", &setlist);
2213 deprecate_cmd (c, "set debug arch");
2214 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2220 #../move-if-change new-gdbarch.c gdbarch.c
2221 compare_new gdbarch.c