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):8*TARGET_CHAR_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
469 # setjmp/longjmp support.
470 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc::0:0
472 # Non multi-arch DUMMY_FRAMES are a mess (multi-arch ones are not that
473 # much better but at least they are vaguely consistent). The headers
474 # and body contain convoluted #if/#else sequences for determine how
475 # things should be compiled. Instead of trying to mimic that
476 # behaviour here (and hence entrench it further) gdbarch simply
477 # reqires that these methods be set up from the word go. This also
478 # avoids any potential problems with moving beyond multi-arch partial.
479 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
480 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
481 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
482 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
483 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
484 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
485 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
486 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
487 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
488 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
489 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
490 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
491 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
492 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
493 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0
494 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0
496 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
497 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
498 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
499 # GET_SAVED_REGISTER is like DUMMY_FRAMES. It is at level one as the
500 # old code has strange #ifdef interaction. So far no one has found
501 # that default_get_saved_register() is the default they are after.
502 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
504 f:2:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
505 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
506 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
507 # This function is called when the value of a pseudo-register needs to
508 # be updated. Typically it will be defined on a per-architecture
510 F:2:FETCH_PSEUDO_REGISTER:void:fetch_pseudo_register:int regnum:regnum:
511 # This function is called when the value of a pseudo-register needs to
512 # be set or stored. Typically it will be defined on a
513 # per-architecture basis.
514 F:2:STORE_PSEUDO_REGISTER:void:store_pseudo_register:int regnum:regnum:
516 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
517 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
518 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
520 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
521 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
522 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
523 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
524 F:2:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
525 f:2:POP_FRAME:void:pop_frame:void:-:::0
527 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
528 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
529 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0
530 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
532 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
533 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
535 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
536 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
537 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
538 f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
539 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
540 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
541 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
542 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
543 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
545 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
547 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
548 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
549 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
550 # Define a default FRAME_CHAIN_VALID, in the form that is suitable for
551 # most targets. If FRAME_CHAIN_VALID returns zero it means that the
552 # given frame is the outermost one and has no caller.
554 # XXXX - both default and alternate frame_chain_valid functions are
555 # deprecated. New code should use dummy frames and one of the generic
557 f:2:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe:::func_frame_chain_valid::0
558 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
559 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
560 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
561 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
562 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
564 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
565 v:2:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
566 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
567 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
568 v:2:PARM_BOUNDARY:int:parm_boundary
570 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
571 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
572 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)
573 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
574 # On some machines there are bits in addresses which are not really
575 # part of the address, but are used by the kernel, the hardware, etc.
576 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
577 # we get a "real" address such as one would find in a symbol table.
578 # This is used only for addresses of instructions, and even then I'm
579 # not sure it's used in all contexts. It exists to deal with there
580 # being a few stray bits in the PC which would mislead us, not as some
581 # sort of generic thing to handle alignment or segmentation (it's
582 # possible it should be in TARGET_READ_PC instead).
583 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
584 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
586 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
587 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
588 # the target needs software single step. An ISA method to implement it.
590 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
591 # using the breakpoint system instead of blatting memory directly (as with rs6000).
593 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
594 # single step. If not, then implement single step using breakpoints.
595 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
596 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
597 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
598 # For SVR4 shared libraries, each call goes through a small piece of
599 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
600 # to nonzero if we are current stopped in one of these.
601 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
602 # A target might have problems with watchpoints as soon as the stack
603 # frame of the current function has been destroyed. This mostly happens
604 # as the first action in a funtion's epilogue. in_function_epilogue_p()
605 # is defined to return a non-zero value if either the given addr is one
606 # instruction after the stack destroying instruction up to the trailing
607 # return instruction or if we can figure out that the stack frame has
608 # already been invalidated regardless of the value of addr. Targets
609 # which don't suffer from that problem could just let this functionality
611 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
612 # Given a vector of command-line arguments, return a newly allocated
613 # string which, when passed to the create_inferior function, will be
614 # parsed (on Unix systems, by the shell) to yield the same vector.
615 # This function should call error() if the argument vector is not
616 # representable for this target or if this target does not support
617 # command-line arguments.
618 # ARGC is the number of elements in the vector.
619 # ARGV is an array of strings, one per argument.
620 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
621 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
622 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
623 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
630 exec > new-gdbarch.log
631 function_list | while do_read
634 ${class} ${macro}(${actual})
635 ${returntype} ${function} ($formal)${attrib}
639 eval echo \"\ \ \ \ ${r}=\${${r}}\"
641 # #fallbackdefault=${fallbackdefault}
642 # #valid_p=${valid_p}
644 if class_is_predicate_p && fallback_default_p
646 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
650 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
652 echo "Error: postdefault is useless when invalid_p=0" 1>&2
656 if class_is_multiarch_p
658 if class_is_predicate_p ; then :
659 elif test "x${predefault}" = "x"
661 echo "Error: pure multi-arch function must have a predefault" 1>&2
670 compare_new gdbarch.log
676 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
678 /* Dynamic architecture support for GDB, the GNU debugger.
679 Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
681 This file is part of GDB.
683 This program is free software; you can redistribute it and/or modify
684 it under the terms of the GNU General Public License as published by
685 the Free Software Foundation; either version 2 of the License, or
686 (at your option) any later version.
688 This program is distributed in the hope that it will be useful,
689 but WITHOUT ANY WARRANTY; without even the implied warranty of
690 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
691 GNU General Public License for more details.
693 You should have received a copy of the GNU General Public License
694 along with this program; if not, write to the Free Software
695 Foundation, Inc., 59 Temple Place - Suite 330,
696 Boston, MA 02111-1307, USA. */
698 /* This file was created with the aid of \`\`gdbarch.sh''.
700 The Bourne shell script \`\`gdbarch.sh'' creates the files
701 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
702 against the existing \`\`gdbarch.[hc]''. Any differences found
705 If editing this file, please also run gdbarch.sh and merge any
706 changes into that script. Conversely, when making sweeping changes
707 to this file, modifying gdbarch.sh and using its output may prove
723 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
725 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
731 struct minimal_symbol;
733 extern struct gdbarch *current_gdbarch;
736 /* If any of the following are defined, the target wasn't correctly
740 #if defined (EXTRA_FRAME_INFO)
741 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
746 #if defined (FRAME_FIND_SAVED_REGS)
747 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
751 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
752 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
759 printf "/* The following are pre-initialized by GDBARCH. */\n"
760 function_list | while do_read
765 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
766 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
767 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
768 printf "#error \"Non multi-arch definition of ${macro}\"\n"
770 printf "#if GDB_MULTI_ARCH\n"
771 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
772 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
781 printf "/* The following are initialized by the target dependent code. */\n"
782 function_list | while do_read
784 if [ -n "${comment}" ]
786 echo "${comment}" | sed \
791 if class_is_multiarch_p
793 if class_is_predicate_p
796 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
799 if class_is_predicate_p
802 printf "#if defined (${macro})\n"
803 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
804 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
805 printf "#if !defined (${macro}_P)\n"
806 printf "#define ${macro}_P() (1)\n"
810 printf "/* Default predicate for non- multi-arch targets. */\n"
811 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
812 printf "#define ${macro}_P() (0)\n"
815 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
816 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
817 printf "#error \"Non multi-arch definition of ${macro}\"\n"
819 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
820 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
824 if class_is_variable_p
826 if fallback_default_p || class_is_predicate_p
829 printf "/* Default (value) for non- multi-arch platforms. */\n"
830 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
831 echo "#define ${macro} (${fallbackdefault})" \
832 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
836 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
837 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
838 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
839 printf "#error \"Non multi-arch definition of ${macro}\"\n"
841 printf "#if GDB_MULTI_ARCH\n"
842 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
843 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
847 if class_is_function_p
849 if class_is_multiarch_p ; then :
850 elif fallback_default_p || class_is_predicate_p
853 printf "/* Default (function) for non- multi-arch platforms. */\n"
854 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
855 if [ "x${fallbackdefault}" = "x0" ]
857 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
859 # FIXME: Should be passing current_gdbarch through!
860 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
861 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
866 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
868 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
869 elif class_is_multiarch_p
871 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
873 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
875 if [ "x${formal}" = "xvoid" ]
877 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
879 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
881 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
882 if class_is_multiarch_p ; then :
884 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
885 printf "#error \"Non multi-arch definition of ${macro}\"\n"
887 printf "#if GDB_MULTI_ARCH\n"
888 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
889 if [ "x${actual}" = "x" ]
891 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
892 elif [ "x${actual}" = "x-" ]
894 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
896 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
907 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
910 /* Mechanism for co-ordinating the selection of a specific
913 GDB targets (*-tdep.c) can register an interest in a specific
914 architecture. Other GDB components can register a need to maintain
915 per-architecture data.
917 The mechanisms below ensures that there is only a loose connection
918 between the set-architecture command and the various GDB
919 components. Each component can independently register their need
920 to maintain architecture specific data with gdbarch.
924 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
927 The more traditional mega-struct containing architecture specific
928 data for all the various GDB components was also considered. Since
929 GDB is built from a variable number of (fairly independent)
930 components it was determined that the global aproach was not
934 /* Register a new architectural family with GDB.
936 Register support for the specified ARCHITECTURE with GDB. When
937 gdbarch determines that the specified architecture has been
938 selected, the corresponding INIT function is called.
942 The INIT function takes two parameters: INFO which contains the
943 information available to gdbarch about the (possibly new)
944 architecture; ARCHES which is a list of the previously created
945 \`\`struct gdbarch'' for this architecture.
947 The INIT function parameter INFO shall, as far as possible, be
948 pre-initialized with information obtained from INFO.ABFD or
949 previously selected architecture (if similar).
951 The INIT function shall return any of: NULL - indicating that it
952 doesn't recognize the selected architecture; an existing \`\`struct
953 gdbarch'' from the ARCHES list - indicating that the new
954 architecture is just a synonym for an earlier architecture (see
955 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
956 - that describes the selected architecture (see gdbarch_alloc()).
958 The DUMP_TDEP function shall print out all target specific values.
959 Care should be taken to ensure that the function works in both the
960 multi-arch and non- multi-arch cases. */
964 struct gdbarch *gdbarch;
965 struct gdbarch_list *next;
970 /* Use default: NULL (ZERO). */
971 const struct bfd_arch_info *bfd_arch_info;
973 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
976 /* Use default: NULL (ZERO). */
979 /* Use default: NULL (ZERO). */
980 struct gdbarch_tdep_info *tdep_info;
983 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
984 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
986 /* DEPRECATED - use gdbarch_register() */
987 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
989 extern void gdbarch_register (enum bfd_architecture architecture,
990 gdbarch_init_ftype *,
991 gdbarch_dump_tdep_ftype *);
994 /* Return a freshly allocated, NULL terminated, array of the valid
995 architecture names. Since architectures are registered during the
996 _initialize phase this function only returns useful information
997 once initialization has been completed. */
999 extern const char **gdbarch_printable_names (void);
1002 /* Helper function. Search the list of ARCHES for a GDBARCH that
1003 matches the information provided by INFO. */
1005 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1008 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1009 basic initialization using values obtained from the INFO andTDEP
1010 parameters. set_gdbarch_*() functions are called to complete the
1011 initialization of the object. */
1013 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1016 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1017 It is assumed that the caller freeds the \`\`struct
1020 extern void gdbarch_free (struct gdbarch *);
1023 /* Helper function. Force an update of the current architecture.
1025 The actual architecture selected is determined by INFO, \`\`(gdb) set
1026 architecture'' et.al., the existing architecture and BFD's default
1027 architecture. INFO should be initialized to zero and then selected
1028 fields should be updated.
1030 Returns non-zero if the update succeeds */
1032 extern int gdbarch_update_p (struct gdbarch_info info);
1036 /* Register per-architecture data-pointer.
1038 Reserve space for a per-architecture data-pointer. An identifier
1039 for the reserved data-pointer is returned. That identifer should
1040 be saved in a local static variable.
1042 The per-architecture data-pointer can be initialized in one of two
1043 ways: The value can be set explicitly using a call to
1044 set_gdbarch_data(); the value can be set implicitly using the value
1045 returned by a non-NULL INIT() callback. INIT(), when non-NULL is
1046 called after the basic architecture vector has been created.
1048 When a previously created architecture is re-selected, the
1049 per-architecture data-pointer for that previous architecture is
1050 restored. INIT() is not called.
1052 During initialization, multiple assignments of the data-pointer are
1053 allowed, non-NULL values are deleted by calling FREE(). If the
1054 architecture is deleted using gdbarch_free() all non-NULL data
1055 pointers are also deleted using FREE().
1057 Multiple registrarants for any architecture are allowed (and
1058 strongly encouraged). */
1060 struct gdbarch_data;
1062 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1063 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1065 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1066 gdbarch_data_free_ftype *free);
1067 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1068 struct gdbarch_data *data,
1071 extern void *gdbarch_data (struct gdbarch_data*);
1074 /* Register per-architecture memory region.
1076 Provide a memory-region swap mechanism. Per-architecture memory
1077 region are created. These memory regions are swapped whenever the
1078 architecture is changed. For a new architecture, the memory region
1079 is initialized with zero (0) and the INIT function is called.
1081 Memory regions are swapped / initialized in the order that they are
1082 registered. NULL DATA and/or INIT values can be specified.
1084 New code should use register_gdbarch_data(). */
1086 typedef void (gdbarch_swap_ftype) (void);
1087 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1088 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1092 /* The target-system-dependent byte order is dynamic */
1094 extern int target_byte_order;
1095 #ifndef TARGET_BYTE_ORDER
1096 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1099 extern int target_byte_order_auto;
1100 #ifndef TARGET_BYTE_ORDER_AUTO
1101 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1106 /* The target-system-dependent BFD architecture is dynamic */
1108 extern int target_architecture_auto;
1109 #ifndef TARGET_ARCHITECTURE_AUTO
1110 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1113 extern const struct bfd_arch_info *target_architecture;
1114 #ifndef TARGET_ARCHITECTURE
1115 #define TARGET_ARCHITECTURE (target_architecture + 0)
1119 /* The target-system-dependent disassembler is semi-dynamic */
1121 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1122 unsigned int len, disassemble_info *info);
1124 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1125 disassemble_info *info);
1127 extern void dis_asm_print_address (bfd_vma addr,
1128 disassemble_info *info);
1130 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1131 extern disassemble_info tm_print_insn_info;
1132 #ifndef TARGET_PRINT_INSN_INFO
1133 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1138 /* Set the dynamic target-system-dependent parameters (architecture,
1139 byte-order, ...) using information found in the BFD */
1141 extern void set_gdbarch_from_file (bfd *);
1144 /* Initialize the current architecture to the "first" one we find on
1147 extern void initialize_current_architecture (void);
1149 /* For non-multiarched targets, do any initialization of the default
1150 gdbarch object necessary after the _initialize_MODULE functions
1152 extern void initialize_non_multiarch ();
1154 /* gdbarch trace variable */
1155 extern int gdbarch_debug;
1157 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1162 #../move-if-change new-gdbarch.h gdbarch.h
1163 compare_new gdbarch.h
1170 exec > new-gdbarch.c
1175 #include "arch-utils.h"
1179 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1181 /* Just include everything in sight so that the every old definition
1182 of macro is visible. */
1183 #include "gdb_string.h"
1187 #include "inferior.h"
1188 #include "breakpoint.h"
1189 #include "gdb_wait.h"
1190 #include "gdbcore.h"
1193 #include "gdbthread.h"
1194 #include "annotate.h"
1195 #include "symfile.h" /* for overlay functions */
1196 #include "value.h" /* For old tm.h/nm.h macros. */
1200 #include "floatformat.h"
1202 #include "gdb_assert.h"
1203 #include "gdb-events.h"
1205 /* Static function declarations */
1207 static void verify_gdbarch (struct gdbarch *gdbarch);
1208 static void alloc_gdbarch_data (struct gdbarch *);
1209 static void init_gdbarch_data (struct gdbarch *);
1210 static void free_gdbarch_data (struct gdbarch *);
1211 static void init_gdbarch_swap (struct gdbarch *);
1212 static void swapout_gdbarch_swap (struct gdbarch *);
1213 static void swapin_gdbarch_swap (struct gdbarch *);
1215 /* Convenience macro for allocting typesafe memory. */
1218 #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
1222 /* Non-zero if we want to trace architecture code. */
1224 #ifndef GDBARCH_DEBUG
1225 #define GDBARCH_DEBUG 0
1227 int gdbarch_debug = GDBARCH_DEBUG;
1231 # gdbarch open the gdbarch object
1233 printf "/* Maintain the struct gdbarch object */\n"
1235 printf "struct gdbarch\n"
1237 printf " /* basic architectural information */\n"
1238 function_list | while do_read
1242 printf " ${returntype} ${function};\n"
1246 printf " /* target specific vector. */\n"
1247 printf " struct gdbarch_tdep *tdep;\n"
1248 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1250 printf " /* per-architecture data-pointers */\n"
1251 printf " unsigned nr_data;\n"
1252 printf " void **data;\n"
1254 printf " /* per-architecture swap-regions */\n"
1255 printf " struct gdbarch_swap *swap;\n"
1258 /* Multi-arch values.
1260 When extending this structure you must:
1262 Add the field below.
1264 Declare set/get functions and define the corresponding
1267 gdbarch_alloc(): If zero/NULL is not a suitable default,
1268 initialize the new field.
1270 verify_gdbarch(): Confirm that the target updated the field
1273 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1276 \`\`startup_gdbarch()'': Append an initial value to the static
1277 variable (base values on the host's c-type system).
1279 get_gdbarch(): Implement the set/get functions (probably using
1280 the macro's as shortcuts).
1285 function_list | while do_read
1287 if class_is_variable_p
1289 printf " ${returntype} ${function};\n"
1290 elif class_is_function_p
1292 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1297 # A pre-initialized vector
1301 /* The default architecture uses host values (for want of a better
1305 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1307 printf "struct gdbarch startup_gdbarch =\n"
1309 printf " /* basic architecture information */\n"
1310 function_list | while do_read
1314 printf " ${staticdefault},\n"
1318 /* target specific vector and its dump routine */
1320 /*per-architecture data-pointers and swap regions */
1322 /* Multi-arch values */
1324 function_list | while do_read
1326 if class_is_function_p || class_is_variable_p
1328 printf " ${staticdefault},\n"
1332 /* startup_gdbarch() */
1335 struct gdbarch *current_gdbarch = &startup_gdbarch;
1337 /* Do any initialization needed for a non-multiarch configuration
1338 after the _initialize_MODULE functions have been run. */
1340 initialize_non_multiarch ()
1342 alloc_gdbarch_data (&startup_gdbarch);
1343 init_gdbarch_data (&startup_gdbarch);
1347 # Create a new gdbarch struct
1351 /* Create a new \`\`struct gdbarch'' based on information provided by
1352 \`\`struct gdbarch_info''. */
1357 gdbarch_alloc (const struct gdbarch_info *info,
1358 struct gdbarch_tdep *tdep)
1360 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1361 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1362 the current local architecture and not the previous global
1363 architecture. This ensures that the new architectures initial
1364 values are not influenced by the previous architecture. Once
1365 everything is parameterised with gdbarch, this will go away. */
1366 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1367 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1369 alloc_gdbarch_data (current_gdbarch);
1371 current_gdbarch->tdep = tdep;
1374 function_list | while do_read
1378 printf " current_gdbarch->${function} = info->${function};\n"
1382 printf " /* Force the explicit initialization of these. */\n"
1383 function_list | while do_read
1385 if class_is_function_p || class_is_variable_p
1387 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1389 printf " current_gdbarch->${function} = ${predefault};\n"
1394 /* gdbarch_alloc() */
1396 return current_gdbarch;
1400 # Free a gdbarch struct.
1404 /* Free a gdbarch struct. This should never happen in normal
1405 operation --- once you've created a gdbarch, you keep it around.
1406 However, if an architecture's init function encounters an error
1407 building the structure, it may need to clean up a partially
1408 constructed gdbarch. */
1411 gdbarch_free (struct gdbarch *arch)
1413 gdb_assert (arch != NULL);
1414 free_gdbarch_data (arch);
1419 # verify a new architecture
1422 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1426 verify_gdbarch (struct gdbarch *gdbarch)
1428 struct ui_file *log;
1429 struct cleanup *cleanups;
1432 /* Only perform sanity checks on a multi-arch target. */
1433 if (!GDB_MULTI_ARCH)
1435 log = mem_fileopen ();
1436 cleanups = make_cleanup_ui_file_delete (log);
1438 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1439 fprintf_unfiltered (log, "\n\tbyte-order");
1440 if (gdbarch->bfd_arch_info == NULL)
1441 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1442 /* Check those that need to be defined for the given multi-arch level. */
1444 function_list | while do_read
1446 if class_is_function_p || class_is_variable_p
1448 if [ "x${invalid_p}" = "x0" ]
1450 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1451 elif class_is_predicate_p
1453 printf " /* Skip verify of ${function}, has predicate */\n"
1454 # FIXME: See do_read for potential simplification
1455 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1457 printf " if (${invalid_p})\n"
1458 printf " gdbarch->${function} = ${postdefault};\n"
1459 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1461 printf " if (gdbarch->${function} == ${predefault})\n"
1462 printf " gdbarch->${function} = ${postdefault};\n"
1463 elif [ -n "${postdefault}" ]
1465 printf " if (gdbarch->${function} == 0)\n"
1466 printf " gdbarch->${function} = ${postdefault};\n"
1467 elif [ -n "${invalid_p}" ]
1469 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1470 printf " && (${invalid_p}))\n"
1471 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1472 elif [ -n "${predefault}" ]
1474 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1475 printf " && (gdbarch->${function} == ${predefault}))\n"
1476 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1481 buf = ui_file_xstrdup (log, &dummy);
1482 make_cleanup (xfree, buf);
1483 if (strlen (buf) > 0)
1484 internal_error (__FILE__, __LINE__,
1485 "verify_gdbarch: the following are invalid ...%s",
1487 do_cleanups (cleanups);
1491 # dump the structure
1495 /* Print out the details of the current architecture. */
1497 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1498 just happens to match the global variable \`\`current_gdbarch''. That
1499 way macros refering to that variable get the local and not the global
1500 version - ulgh. Once everything is parameterised with gdbarch, this
1504 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1506 fprintf_unfiltered (file,
1507 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1510 function_list | sort -t: +2 | while do_read
1512 # multiarch functions don't have macros.
1513 if class_is_multiarch_p
1515 printf " if (GDB_MULTI_ARCH)\n"
1516 printf " fprintf_unfiltered (file,\n"
1517 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1518 printf " (long) current_gdbarch->${function});\n"
1521 # Print the macro definition.
1522 printf "#ifdef ${macro}\n"
1523 if [ "x${returntype}" = "xvoid" ]
1525 printf "#if GDB_MULTI_ARCH\n"
1526 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1528 if class_is_function_p
1530 printf " fprintf_unfiltered (file,\n"
1531 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1532 printf " \"${macro}(${actual})\",\n"
1533 printf " XSTRING (${macro} (${actual})));\n"
1535 printf " fprintf_unfiltered (file,\n"
1536 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1537 printf " XSTRING (${macro}));\n"
1539 # Print the architecture vector value
1540 if [ "x${returntype}" = "xvoid" ]
1544 if [ "x${print_p}" = "x()" ]
1546 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1547 elif [ "x${print_p}" = "x0" ]
1549 printf " /* skip print of ${macro}, print_p == 0. */\n"
1550 elif [ -n "${print_p}" ]
1552 printf " if (${print_p})\n"
1553 printf " fprintf_unfiltered (file,\n"
1554 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1555 printf " ${print});\n"
1556 elif class_is_function_p
1558 printf " if (GDB_MULTI_ARCH)\n"
1559 printf " fprintf_unfiltered (file,\n"
1560 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1561 printf " (long) current_gdbarch->${function}\n"
1562 printf " /*${macro} ()*/);\n"
1564 printf " fprintf_unfiltered (file,\n"
1565 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1566 printf " ${print});\n"
1571 if (current_gdbarch->dump_tdep != NULL)
1572 current_gdbarch->dump_tdep (current_gdbarch, file);
1580 struct gdbarch_tdep *
1581 gdbarch_tdep (struct gdbarch *gdbarch)
1583 if (gdbarch_debug >= 2)
1584 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1585 return gdbarch->tdep;
1589 function_list | while do_read
1591 if class_is_predicate_p
1595 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1597 if [ -n "${valid_p}" ]
1599 printf " return ${valid_p};\n"
1601 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1605 if class_is_function_p
1608 printf "${returntype}\n"
1609 if [ "x${formal}" = "xvoid" ]
1611 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1613 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1616 printf " if (gdbarch->${function} == 0)\n"
1617 printf " internal_error (__FILE__, __LINE__,\n"
1618 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1619 printf " if (gdbarch_debug >= 2)\n"
1620 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1621 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1623 if class_is_multiarch_p
1630 if class_is_multiarch_p
1632 params="gdbarch, ${actual}"
1637 if [ "x${returntype}" = "xvoid" ]
1639 printf " gdbarch->${function} (${params});\n"
1641 printf " return gdbarch->${function} (${params});\n"
1646 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1647 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1649 printf " gdbarch->${function} = ${function};\n"
1651 elif class_is_variable_p
1654 printf "${returntype}\n"
1655 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1657 if [ "x${invalid_p}" = "x0" ]
1659 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1660 elif [ -n "${invalid_p}" ]
1662 printf " if (${invalid_p})\n"
1663 printf " internal_error (__FILE__, __LINE__,\n"
1664 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1665 elif [ -n "${predefault}" ]
1667 printf " if (gdbarch->${function} == ${predefault})\n"
1668 printf " internal_error (__FILE__, __LINE__,\n"
1669 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1671 printf " if (gdbarch_debug >= 2)\n"
1672 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1673 printf " return gdbarch->${function};\n"
1677 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1678 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1680 printf " gdbarch->${function} = ${function};\n"
1682 elif class_is_info_p
1685 printf "${returntype}\n"
1686 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1688 printf " if (gdbarch_debug >= 2)\n"
1689 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1690 printf " return gdbarch->${function};\n"
1695 # All the trailing guff
1699 /* Keep a registry of per-architecture data-pointers required by GDB
1705 gdbarch_data_init_ftype *init;
1706 gdbarch_data_free_ftype *free;
1709 struct gdbarch_data_registration
1711 struct gdbarch_data *data;
1712 struct gdbarch_data_registration *next;
1715 struct gdbarch_data_registry
1718 struct gdbarch_data_registration *registrations;
1721 struct gdbarch_data_registry gdbarch_data_registry =
1726 struct gdbarch_data *
1727 register_gdbarch_data (gdbarch_data_init_ftype *init,
1728 gdbarch_data_free_ftype *free)
1730 struct gdbarch_data_registration **curr;
1731 for (curr = &gdbarch_data_registry.registrations;
1733 curr = &(*curr)->next);
1734 (*curr) = XMALLOC (struct gdbarch_data_registration);
1735 (*curr)->next = NULL;
1736 (*curr)->data = XMALLOC (struct gdbarch_data);
1737 (*curr)->data->index = gdbarch_data_registry.nr++;
1738 (*curr)->data->init = init;
1739 (*curr)->data->free = free;
1740 return (*curr)->data;
1744 /* Walk through all the registered users initializing each in turn. */
1747 init_gdbarch_data (struct gdbarch *gdbarch)
1749 struct gdbarch_data_registration *rego;
1750 for (rego = gdbarch_data_registry.registrations;
1754 struct gdbarch_data *data = rego->data;
1755 gdb_assert (data->index < gdbarch->nr_data);
1756 if (data->init != NULL)
1758 void *pointer = data->init (gdbarch);
1759 set_gdbarch_data (gdbarch, data, pointer);
1764 /* Create/delete the gdbarch data vector. */
1767 alloc_gdbarch_data (struct gdbarch *gdbarch)
1769 gdb_assert (gdbarch->data == NULL);
1770 gdbarch->nr_data = gdbarch_data_registry.nr;
1771 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1775 free_gdbarch_data (struct gdbarch *gdbarch)
1777 struct gdbarch_data_registration *rego;
1778 gdb_assert (gdbarch->data != NULL);
1779 for (rego = gdbarch_data_registry.registrations;
1783 struct gdbarch_data *data = rego->data;
1784 gdb_assert (data->index < gdbarch->nr_data);
1785 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1787 data->free (gdbarch, gdbarch->data[data->index]);
1788 gdbarch->data[data->index] = NULL;
1791 xfree (gdbarch->data);
1792 gdbarch->data = NULL;
1796 /* Initialize the current value of thee specified per-architecture
1800 set_gdbarch_data (struct gdbarch *gdbarch,
1801 struct gdbarch_data *data,
1804 gdb_assert (data->index < gdbarch->nr_data);
1805 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1806 data->free (gdbarch, gdbarch->data[data->index]);
1807 gdbarch->data[data->index] = pointer;
1810 /* Return the current value of the specified per-architecture
1814 gdbarch_data (struct gdbarch_data *data)
1816 gdb_assert (data->index < current_gdbarch->nr_data);
1817 return current_gdbarch->data[data->index];
1822 /* Keep a registry of swapped data required by GDB modules. */
1827 struct gdbarch_swap_registration *source;
1828 struct gdbarch_swap *next;
1831 struct gdbarch_swap_registration
1834 unsigned long sizeof_data;
1835 gdbarch_swap_ftype *init;
1836 struct gdbarch_swap_registration *next;
1839 struct gdbarch_swap_registry
1842 struct gdbarch_swap_registration *registrations;
1845 struct gdbarch_swap_registry gdbarch_swap_registry =
1851 register_gdbarch_swap (void *data,
1852 unsigned long sizeof_data,
1853 gdbarch_swap_ftype *init)
1855 struct gdbarch_swap_registration **rego;
1856 for (rego = &gdbarch_swap_registry.registrations;
1858 rego = &(*rego)->next);
1859 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1860 (*rego)->next = NULL;
1861 (*rego)->init = init;
1862 (*rego)->data = data;
1863 (*rego)->sizeof_data = sizeof_data;
1868 init_gdbarch_swap (struct gdbarch *gdbarch)
1870 struct gdbarch_swap_registration *rego;
1871 struct gdbarch_swap **curr = &gdbarch->swap;
1872 for (rego = gdbarch_swap_registry.registrations;
1876 if (rego->data != NULL)
1878 (*curr) = XMALLOC (struct gdbarch_swap);
1879 (*curr)->source = rego;
1880 (*curr)->swap = xmalloc (rego->sizeof_data);
1881 (*curr)->next = NULL;
1882 memset (rego->data, 0, rego->sizeof_data);
1883 curr = &(*curr)->next;
1885 if (rego->init != NULL)
1891 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1893 struct gdbarch_swap *curr;
1894 for (curr = gdbarch->swap;
1897 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1901 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1903 struct gdbarch_swap *curr;
1904 for (curr = gdbarch->swap;
1907 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1911 /* Keep a registry of the architectures known by GDB. */
1913 struct gdbarch_registration
1915 enum bfd_architecture bfd_architecture;
1916 gdbarch_init_ftype *init;
1917 gdbarch_dump_tdep_ftype *dump_tdep;
1918 struct gdbarch_list *arches;
1919 struct gdbarch_registration *next;
1922 static struct gdbarch_registration *gdbarch_registry = NULL;
1925 append_name (const char ***buf, int *nr, const char *name)
1927 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1933 gdbarch_printable_names (void)
1937 /* Accumulate a list of names based on the registed list of
1939 enum bfd_architecture a;
1941 const char **arches = NULL;
1942 struct gdbarch_registration *rego;
1943 for (rego = gdbarch_registry;
1947 const struct bfd_arch_info *ap;
1948 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1950 internal_error (__FILE__, __LINE__,
1951 "gdbarch_architecture_names: multi-arch unknown");
1954 append_name (&arches, &nr_arches, ap->printable_name);
1959 append_name (&arches, &nr_arches, NULL);
1963 /* Just return all the architectures that BFD knows. Assume that
1964 the legacy architecture framework supports them. */
1965 return bfd_arch_list ();
1970 gdbarch_register (enum bfd_architecture bfd_architecture,
1971 gdbarch_init_ftype *init,
1972 gdbarch_dump_tdep_ftype *dump_tdep)
1974 struct gdbarch_registration **curr;
1975 const struct bfd_arch_info *bfd_arch_info;
1976 /* Check that BFD recognizes this architecture */
1977 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1978 if (bfd_arch_info == NULL)
1980 internal_error (__FILE__, __LINE__,
1981 "gdbarch: Attempt to register unknown architecture (%d)",
1984 /* Check that we haven't seen this architecture before */
1985 for (curr = &gdbarch_registry;
1987 curr = &(*curr)->next)
1989 if (bfd_architecture == (*curr)->bfd_architecture)
1990 internal_error (__FILE__, __LINE__,
1991 "gdbarch: Duplicate registraration of architecture (%s)",
1992 bfd_arch_info->printable_name);
1996 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1997 bfd_arch_info->printable_name,
2000 (*curr) = XMALLOC (struct gdbarch_registration);
2001 (*curr)->bfd_architecture = bfd_architecture;
2002 (*curr)->init = init;
2003 (*curr)->dump_tdep = dump_tdep;
2004 (*curr)->arches = NULL;
2005 (*curr)->next = NULL;
2006 /* When non- multi-arch, install whatever target dump routine we've
2007 been provided - hopefully that routine has been written correctly
2008 and works regardless of multi-arch. */
2009 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2010 && startup_gdbarch.dump_tdep == NULL)
2011 startup_gdbarch.dump_tdep = dump_tdep;
2015 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2016 gdbarch_init_ftype *init)
2018 gdbarch_register (bfd_architecture, init, NULL);
2022 /* Look for an architecture using gdbarch_info. Base search on only
2023 BFD_ARCH_INFO and BYTE_ORDER. */
2025 struct gdbarch_list *
2026 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2027 const struct gdbarch_info *info)
2029 for (; arches != NULL; arches = arches->next)
2031 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2033 if (info->byte_order != arches->gdbarch->byte_order)
2041 /* Update the current architecture. Return ZERO if the update request
2045 gdbarch_update_p (struct gdbarch_info info)
2047 struct gdbarch *new_gdbarch;
2048 struct gdbarch_list **list;
2049 struct gdbarch_registration *rego;
2051 /* Fill in missing parts of the INFO struct using a number of
2052 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2054 /* \`\`(gdb) set architecture ...'' */
2055 if (info.bfd_arch_info == NULL
2056 && !TARGET_ARCHITECTURE_AUTO)
2057 info.bfd_arch_info = TARGET_ARCHITECTURE;
2058 if (info.bfd_arch_info == NULL
2059 && info.abfd != NULL
2060 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2061 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2062 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2063 if (info.bfd_arch_info == NULL)
2064 info.bfd_arch_info = TARGET_ARCHITECTURE;
2066 /* \`\`(gdb) set byte-order ...'' */
2067 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2068 && !TARGET_BYTE_ORDER_AUTO)
2069 info.byte_order = TARGET_BYTE_ORDER;
2070 /* From the INFO struct. */
2071 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2072 && info.abfd != NULL)
2073 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2074 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2075 : BFD_ENDIAN_UNKNOWN);
2076 /* From the current target. */
2077 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2078 info.byte_order = TARGET_BYTE_ORDER;
2080 /* Must have found some sort of architecture. */
2081 gdb_assert (info.bfd_arch_info != NULL);
2085 fprintf_unfiltered (gdb_stdlog,
2086 "gdbarch_update: info.bfd_arch_info %s\n",
2087 (info.bfd_arch_info != NULL
2088 ? info.bfd_arch_info->printable_name
2090 fprintf_unfiltered (gdb_stdlog,
2091 "gdbarch_update: info.byte_order %d (%s)\n",
2093 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2094 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2096 fprintf_unfiltered (gdb_stdlog,
2097 "gdbarch_update: info.abfd 0x%lx\n",
2099 fprintf_unfiltered (gdb_stdlog,
2100 "gdbarch_update: info.tdep_info 0x%lx\n",
2101 (long) info.tdep_info);
2104 /* Find the target that knows about this architecture. */
2105 for (rego = gdbarch_registry;
2108 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2113 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2117 /* Ask the target for a replacement architecture. */
2118 new_gdbarch = rego->init (info, rego->arches);
2120 /* Did the target like it? No. Reject the change. */
2121 if (new_gdbarch == NULL)
2124 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2128 /* Did the architecture change? No. Do nothing. */
2129 if (current_gdbarch == new_gdbarch)
2132 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2134 new_gdbarch->bfd_arch_info->printable_name);
2138 /* Swap all data belonging to the old target out */
2139 swapout_gdbarch_swap (current_gdbarch);
2141 /* Is this a pre-existing architecture? Yes. Swap it in. */
2142 for (list = ®o->arches;
2144 list = &(*list)->next)
2146 if ((*list)->gdbarch == new_gdbarch)
2149 fprintf_unfiltered (gdb_stdlog,
2150 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\\n",
2152 new_gdbarch->bfd_arch_info->printable_name);
2153 current_gdbarch = new_gdbarch;
2154 swapin_gdbarch_swap (new_gdbarch);
2155 architecture_changed_event ();
2160 /* Append this new architecture to this targets list. */
2161 (*list) = XMALLOC (struct gdbarch_list);
2162 (*list)->next = NULL;
2163 (*list)->gdbarch = new_gdbarch;
2165 /* Switch to this new architecture. Dump it out. */
2166 current_gdbarch = new_gdbarch;
2169 fprintf_unfiltered (gdb_stdlog,
2170 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2172 new_gdbarch->bfd_arch_info->printable_name);
2175 /* Check that the newly installed architecture is valid. Plug in
2176 any post init values. */
2177 new_gdbarch->dump_tdep = rego->dump_tdep;
2178 verify_gdbarch (new_gdbarch);
2180 /* Initialize the per-architecture memory (swap) areas.
2181 CURRENT_GDBARCH must be update before these modules are
2183 init_gdbarch_swap (new_gdbarch);
2185 /* Initialize the per-architecture data-pointer of all parties that
2186 registered an interest in this architecture. CURRENT_GDBARCH
2187 must be updated before these modules are called. */
2188 init_gdbarch_data (new_gdbarch);
2189 architecture_changed_event ();
2192 gdbarch_dump (current_gdbarch, gdb_stdlog);
2200 /* Pointer to the target-dependent disassembly function. */
2201 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2202 disassemble_info tm_print_insn_info;
2205 extern void _initialize_gdbarch (void);
2208 _initialize_gdbarch (void)
2210 struct cmd_list_element *c;
2212 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2213 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2214 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2215 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2216 tm_print_insn_info.print_address_func = dis_asm_print_address;
2218 add_show_from_set (add_set_cmd ("arch",
2221 (char *)&gdbarch_debug,
2222 "Set architecture debugging.\\n\\
2223 When non-zero, architecture debugging is enabled.", &setdebuglist),
2225 c = add_set_cmd ("archdebug",
2228 (char *)&gdbarch_debug,
2229 "Set architecture debugging.\\n\\
2230 When non-zero, architecture debugging is enabled.", &setlist);
2232 deprecate_cmd (c, "set debug arch");
2233 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2239 #../move-if-change new-gdbarch.c gdbarch.c
2240 compare_new gdbarch.c