3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
6 # 2008 Free Software Foundation, Inc.
8 # This file is part of GDB.
10 # This program is free software; you can redistribute it and/or modify
11 # it under the terms of the GNU General Public License as published by
12 # the Free Software Foundation; either version 3 of the License, or
13 # (at your option) any later version.
15 # This program is distributed in the hope that it will be useful,
16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 # GNU General Public License for more details.
20 # You should have received a copy of the GNU General Public License
21 # along with this program. If not, see <http://www.gnu.org/licenses/>.
23 # Make certain that the script is not running in an internationalized
26 LC_ALL
=c
; export LC_ALL
34 echo "${file} missing? cp new-${file} ${file}" 1>&2
35 elif diff -u ${file} new-
${file}
37 echo "${file} unchanged" 1>&2
39 echo "${file} has changed? cp new-${file} ${file}" 1>&2
44 # Format of the input table
45 read="class returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol"
53 if test "${line}" = ""
56 elif test "${line}" = "#" -a "${comment}" = ""
59 elif expr "${line}" : "#" > /dev
/null
65 # The semantics of IFS varies between different SH's. Some
66 # treat ``::' as three fields while some treat it as just too.
67 # Work around this by eliminating ``::'' ....
68 line
="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
70 OFS
="${IFS}" ; IFS
="[:]"
71 eval read ${read} <<EOF
76 if test -n "${garbage_at_eol}"
78 echo "Garbage at end-of-line in ${line}" 1>&2
83 # .... and then going back through each field and strip out those
84 # that ended up with just that space character.
87 if eval test \"\
${${r}}\" = \"\
\"
94 m
) staticdefault
="${predefault}" ;;
95 M
) staticdefault
="0" ;;
96 * ) test "${staticdefault}" || staticdefault
=0 ;;
101 case "${invalid_p}" in
103 if test -n "${predefault}"
105 #invalid_p="gdbarch->${function} == ${predefault}"
106 predicate
="gdbarch->${function} != ${predefault}"
107 elif class_is_variable_p
109 predicate
="gdbarch->${function} != 0"
110 elif class_is_function_p
112 predicate
="gdbarch->${function} != NULL"
116 echo "Predicate function ${function} with invalid_p." 1>&2
123 # PREDEFAULT is a valid fallback definition of MEMBER when
124 # multi-arch is not enabled. This ensures that the
125 # default value, when multi-arch is the same as the
126 # default value when not multi-arch. POSTDEFAULT is
127 # always a valid definition of MEMBER as this again
128 # ensures consistency.
130 if [ -n "${postdefault}" ]
132 fallbackdefault
="${postdefault}"
133 elif [ -n "${predefault}" ]
135 fallbackdefault
="${predefault}"
140 #NOT YET: See gdbarch.log for basic verification of
155 fallback_default_p
()
157 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
158 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
161 class_is_variable_p
()
169 class_is_function_p
()
172 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
177 class_is_multiarch_p
()
185 class_is_predicate_p
()
188 *F
* |
*V
* |
*M
* ) true
;;
202 # dump out/verify the doco
212 # F -> function + predicate
213 # hiding a function + predicate to test function validity
216 # V -> variable + predicate
217 # hiding a variable + predicate to test variables validity
219 # hiding something from the ``struct info'' object
220 # m -> multi-arch function
221 # hiding a multi-arch function (parameterised with the architecture)
222 # M -> multi-arch function + predicate
223 # hiding a multi-arch function + predicate to test function validity
227 # For functions, the return type; for variables, the data type
231 # For functions, the member function name; for variables, the
232 # variable name. Member function names are always prefixed with
233 # ``gdbarch_'' for name-space purity.
237 # The formal argument list. It is assumed that the formal
238 # argument list includes the actual name of each list element.
239 # A function with no arguments shall have ``void'' as the
240 # formal argument list.
244 # The list of actual arguments. The arguments specified shall
245 # match the FORMAL list given above. Functions with out
246 # arguments leave this blank.
250 # To help with the GDB startup a static gdbarch object is
251 # created. STATICDEFAULT is the value to insert into that
252 # static gdbarch object. Since this a static object only
253 # simple expressions can be used.
255 # If STATICDEFAULT is empty, zero is used.
259 # An initial value to assign to MEMBER of the freshly
260 # malloc()ed gdbarch object. After initialization, the
261 # freshly malloc()ed object is passed to the target
262 # architecture code for further updates.
264 # If PREDEFAULT is empty, zero is used.
266 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
267 # INVALID_P are specified, PREDEFAULT will be used as the
268 # default for the non- multi-arch target.
270 # A zero PREDEFAULT function will force the fallback to call
273 # Variable declarations can refer to ``gdbarch'' which will
274 # contain the current architecture. Care should be taken.
278 # A value to assign to MEMBER of the new gdbarch object should
279 # the target architecture code fail to change the PREDEFAULT
282 # If POSTDEFAULT is empty, no post update is performed.
284 # If both INVALID_P and POSTDEFAULT are non-empty then
285 # INVALID_P will be used to determine if MEMBER should be
286 # changed to POSTDEFAULT.
288 # If a non-empty POSTDEFAULT and a zero INVALID_P are
289 # specified, POSTDEFAULT will be used as the default for the
290 # non- multi-arch target (regardless of the value of
293 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
295 # Variable declarations can refer to ``gdbarch'' which
296 # will contain the current architecture. Care should be
301 # A predicate equation that validates MEMBER. Non-zero is
302 # returned if the code creating the new architecture failed to
303 # initialize MEMBER or the initialized the member is invalid.
304 # If POSTDEFAULT is non-empty then MEMBER will be updated to
305 # that value. If POSTDEFAULT is empty then internal_error()
308 # If INVALID_P is empty, a check that MEMBER is no longer
309 # equal to PREDEFAULT is used.
311 # The expression ``0'' disables the INVALID_P check making
312 # PREDEFAULT a legitimate value.
314 # See also PREDEFAULT and POSTDEFAULT.
318 # An optional expression that convers MEMBER to a value
319 # suitable for formatting using %s.
321 # If PRINT is empty, paddr_nz (for CORE_ADDR) or paddr_d
322 # (anything else) is used.
324 garbage_at_eol
) : ;;
326 # Catches stray fields.
329 echo "Bad field ${field}"
337 # See below (DOCO) for description of each field
339 i:const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (gdbarch)->printable_name
341 i:int:byte_order:::BFD_ENDIAN_BIG
343 i:enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
345 i:const struct target_desc *:target_desc:::::::paddr_d ((long) gdbarch->target_desc)
347 # The bit byte-order has to do just with numbering of bits in debugging symbols
348 # and such. Conceptually, it's quite separate from byte/word byte order.
349 v:int:bits_big_endian:::1:(gdbarch->byte_order == BFD_ENDIAN_BIG)::0
351 # Number of bits in a char or unsigned char for the target machine.
352 # Just like CHAR_BIT in <limits.h> but describes the target machine.
353 # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
355 # Number of bits in a short or unsigned short for the target machine.
356 v:int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0
357 # Number of bits in an int or unsigned int for the target machine.
358 v:int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0
359 # Number of bits in a long or unsigned long for the target machine.
360 v:int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
361 # Number of bits in a long long or unsigned long long for the target
363 v:int:long_long_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
365 # The ABI default bit-size and format for "float", "double", and "long
366 # double". These bit/format pairs should eventually be combined into
367 # a single object. For the moment, just initialize them as a pair.
368 # Each format describes both the big and little endian layouts (if
371 v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
372 v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format)
373 v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
374 v:const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (gdbarch->double_format)
375 v:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
376 v:const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (gdbarch->long_double_format)
378 # For most targets, a pointer on the target and its representation as an
379 # address in GDB have the same size and "look the same". For such a
380 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
381 # / addr_bit will be set from it.
383 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
384 # also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
387 # ptr_bit is the size of a pointer on the target
388 v:int:ptr_bit:::8 * sizeof (void*):gdbarch->int_bit::0
389 # addr_bit is the size of a target address as represented in gdb
390 v:int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (gdbarch):
392 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
393 v:int:char_signed:::1:-1:1
395 F:CORE_ADDR:read_pc:struct regcache *regcache:regcache
396 F:void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
397 # Function for getting target's idea of a frame pointer. FIXME: GDB's
398 # whole scheme for dealing with "frames" and "frame pointers" needs a
400 m:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset:0:legacy_virtual_frame_pointer::0
402 M:void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
403 M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
405 v:int:num_regs:::0:-1
406 # This macro gives the number of pseudo-registers that live in the
407 # register namespace but do not get fetched or stored on the target.
408 # These pseudo-registers may be aliases for other registers,
409 # combinations of other registers, or they may be computed by GDB.
410 v:int:num_pseudo_regs:::0:0::0
412 # GDB's standard (or well known) register numbers. These can map onto
413 # a real register or a pseudo (computed) register or not be defined at
415 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
416 v:int:sp_regnum:::-1:-1::0
417 v:int:pc_regnum:::-1:-1::0
418 v:int:ps_regnum:::-1:-1::0
419 v:int:fp0_regnum:::0:-1::0
420 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
421 m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
422 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
423 m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
424 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
425 m:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr::no_op_reg_to_regnum::0
426 # Convert from an sdb register number to an internal gdb register number.
427 m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
428 m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
429 m:const char *:register_name:int regnr:regnr::0
431 # Return the type of a register specified by the architecture. Only
432 # the register cache should call this function directly; others should
433 # use "register_type".
434 M:struct type *:register_type:int reg_nr:reg_nr
436 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
437 M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame
438 # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
439 # deprecated_fp_regnum.
440 v:int:deprecated_fp_regnum:::-1:-1::0
442 # See gdbint.texinfo. See infcall.c.
443 M:CORE_ADDR:push_dummy_call:struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:function, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr
444 v:int:call_dummy_location::::AT_ENTRY_POINT::0
445 M:CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache:sp, funaddr, args, nargs, value_type, real_pc, bp_addr, regcache
447 m:void:print_registers_info:struct ui_file *file, struct frame_info *frame, int regnum, int all:file, frame, regnum, all::default_print_registers_info::0
448 M:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
449 M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
450 # MAP a GDB RAW register number onto a simulator register number. See
451 # also include/...-sim.h.
452 m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
453 m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
454 m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
455 # setjmp/longjmp support.
456 F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
458 v:int:believe_pcc_promotion:::::::
460 m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
461 f:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0
462 f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
463 # Construct a value representing the contents of register REGNUM in
464 # frame FRAME, interpreted as type TYPE. The routine needs to
465 # allocate and return a struct value with all value attributes
466 # (but not the value contents) filled in.
467 f:struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
469 f:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
470 f:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
471 M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
473 # Return the return-value convention that will be used by FUNCTYPE
474 # to return a value of type VALTYPE. FUNCTYPE may be NULL in which
475 # case the return convention is computed based only on VALTYPE.
477 # If READBUF is not NULL, extract the return value and save it in this buffer.
479 # If WRITEBUF is not NULL, it contains a return value which will be
480 # stored into the appropriate register. This can be used when we want
481 # to force the value returned by a function (see the "return" command
483 M:enum return_value_convention:return_value:struct type *functype, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:functype, valtype, regcache, readbuf, writebuf
485 m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
486 f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
487 m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
488 M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
489 m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
490 m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
491 v:CORE_ADDR:decr_pc_after_break:::0:::0
493 # A function can be addressed by either it's "pointer" (possibly a
494 # descriptor address) or "entry point" (first executable instruction).
495 # The method "convert_from_func_ptr_addr" converting the former to the
496 # latter. gdbarch_deprecated_function_start_offset is being used to implement
497 # a simplified subset of that functionality - the function's address
498 # corresponds to the "function pointer" and the function's start
499 # corresponds to the "function entry point" - and hence is redundant.
501 v:CORE_ADDR:deprecated_function_start_offset:::0:::0
503 # Return the remote protocol register number associated with this
504 # register. Normally the identity mapping.
505 m:int:remote_register_number:int regno:regno::default_remote_register_number::0
507 # Fetch the target specific address used to represent a load module.
508 F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
510 v:CORE_ADDR:frame_args_skip:::0:::0
511 M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
512 M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
513 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
514 # frame-base. Enable frame-base before frame-unwind.
515 F:int:frame_num_args:struct frame_info *frame:frame
517 M:CORE_ADDR:frame_align:CORE_ADDR address:address
518 m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
519 v:int:frame_red_zone_size
521 m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
522 # On some machines there are bits in addresses which are not really
523 # part of the address, but are used by the kernel, the hardware, etc.
524 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
525 # we get a "real" address such as one would find in a symbol table.
526 # This is used only for addresses of instructions, and even then I'm
527 # not sure it's used in all contexts. It exists to deal with there
528 # being a few stray bits in the PC which would mislead us, not as some
529 # sort of generic thing to handle alignment or segmentation (it's
530 # possible it should be in TARGET_READ_PC instead).
531 f:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
532 # It is not at all clear why gdbarch_smash_text_address is not folded into
533 # gdbarch_addr_bits_remove.
534 f:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
536 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
537 # indicates if the target needs software single step. An ISA method to
540 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
541 # breakpoints using the breakpoint system instead of blatting memory directly
544 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
545 # target can single step. If not, then implement single step using breakpoints.
547 # A return value of 1 means that the software_single_step breakpoints
548 # were inserted; 0 means they were not.
549 F:int:software_single_step:struct frame_info *frame:frame
551 # Return non-zero if the processor is executing a delay slot and a
552 # further single-step is needed before the instruction finishes.
553 M:int:single_step_through_delay:struct frame_info *frame:frame
554 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
555 # disassembler. Perhaps objdump can handle it?
556 f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
557 f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
560 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
561 # evaluates non-zero, this is the address where the debugger will place
562 # a step-resume breakpoint to get us past the dynamic linker.
563 m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
564 # Some systems also have trampoline code for returning from shared libs.
565 f:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
567 # A target might have problems with watchpoints as soon as the stack
568 # frame of the current function has been destroyed. This mostly happens
569 # as the first action in a funtion's epilogue. in_function_epilogue_p()
570 # is defined to return a non-zero value if either the given addr is one
571 # instruction after the stack destroying instruction up to the trailing
572 # return instruction or if we can figure out that the stack frame has
573 # already been invalidated regardless of the value of addr. Targets
574 # which don't suffer from that problem could just let this functionality
576 m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
577 # Given a vector of command-line arguments, return a newly allocated
578 # string which, when passed to the create_inferior function, will be
579 # parsed (on Unix systems, by the shell) to yield the same vector.
580 # This function should call error() if the argument vector is not
581 # representable for this target or if this target does not support
582 # command-line arguments.
583 # ARGC is the number of elements in the vector.
584 # ARGV is an array of strings, one per argument.
585 m:char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0
586 f:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
587 f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
588 v:const char *:name_of_malloc:::"malloc":"malloc"::0:gdbarch->name_of_malloc
589 v:int:cannot_step_breakpoint:::0:0::0
590 v:int:have_nonsteppable_watchpoint:::0:0::0
591 F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
592 M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
593 M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
594 # Is a register in a group
595 m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
596 # Fetch the pointer to the ith function argument.
597 F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
599 # Return the appropriate register set for a core file section with
600 # name SECT_NAME and size SECT_SIZE.
601 M:const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
603 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
604 # core file into buffer READBUF with length LEN.
605 M:LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
607 # If the elements of C++ vtables are in-place function descriptors rather
608 # than normal function pointers (which may point to code or a descriptor),
610 v:int:vtable_function_descriptors:::0:0::0
612 # Set if the least significant bit of the delta is used instead of the least
613 # significant bit of the pfn for pointers to virtual member functions.
614 v:int:vbit_in_delta:::0:0::0
616 # Advance PC to next instruction in order to skip a permanent breakpoint.
617 F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache
619 # Refresh overlay mapped state for section OSECT.
620 F:void:overlay_update:struct obj_section *osect:osect
622 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
624 # Handle special encoding of static variables in stabs debug info.
625 F:char *:static_transform_name:char *name:name
626 # Set if the address in N_SO or N_FUN stabs may be zero.
627 v:int:sofun_address_maybe_missing:::0:0::0
629 # Signal translation: translate inferior's signal (host's) number into
630 # GDB's representation.
631 m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0
632 # Signal translation: translate GDB's signal number into inferior's host
634 m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0
641 exec > new-gdbarch.log
642 function_list |
while do_read
645 ${class} ${returntype} ${function} ($formal)
649 eval echo \"\ \ \ \
${r}=\
${${r}}\"
651 if class_is_predicate_p
&& fallback_default_p
653 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
657 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
659 echo "Error: postdefault is useless when invalid_p=0" 1>&2
663 if class_is_multiarch_p
665 if class_is_predicate_p
; then :
666 elif test "x${predefault}" = "x"
668 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
677 compare_new gdbarch.log
683 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
685 /* Dynamic architecture support for GDB, the GNU debugger.
687 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
688 Free Software Foundation, Inc.
690 This file is part of GDB.
692 This program is free software; you can redistribute it and/or modify
693 it under the terms of the GNU General Public License as published by
694 the Free Software Foundation; either version 3 of the License, or
695 (at your option) any later version.
697 This program is distributed in the hope that it will be useful,
698 but WITHOUT ANY WARRANTY; without even the implied warranty of
699 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
700 GNU General Public License for more details.
702 You should have received a copy of the GNU General Public License
703 along with this program. If not, see <http://www.gnu.org/licenses/>. */
705 /* This file was created with the aid of \`\`gdbarch.sh''.
707 The Bourne shell script \`\`gdbarch.sh'' creates the files
708 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
709 against the existing \`\`gdbarch.[hc]''. Any differences found
712 If editing this file, please also run gdbarch.sh and merge any
713 changes into that script. Conversely, when making sweeping changes
714 to this file, modifying gdbarch.sh and using its output may prove
736 struct minimal_symbol;
740 struct disassemble_info;
743 struct bp_target_info;
746 extern struct gdbarch *current_gdbarch;
752 printf "/* The following are pre-initialized by GDBARCH. */\n"
753 function_list |
while do_read
758 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
759 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
766 printf "/* The following are initialized by the target dependent code. */\n"
767 function_list |
while do_read
769 if [ -n "${comment}" ]
771 echo "${comment}" |
sed \
777 if class_is_predicate_p
780 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
782 if class_is_variable_p
785 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
786 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
788 if class_is_function_p
791 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
793 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
794 elif class_is_multiarch_p
796 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
798 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
800 if [ "x${formal}" = "xvoid" ]
802 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
804 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
806 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
813 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
816 /* Mechanism for co-ordinating the selection of a specific
819 GDB targets (*-tdep.c) can register an interest in a specific
820 architecture. Other GDB components can register a need to maintain
821 per-architecture data.
823 The mechanisms below ensures that there is only a loose connection
824 between the set-architecture command and the various GDB
825 components. Each component can independently register their need
826 to maintain architecture specific data with gdbarch.
830 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
833 The more traditional mega-struct containing architecture specific
834 data for all the various GDB components was also considered. Since
835 GDB is built from a variable number of (fairly independent)
836 components it was determined that the global aproach was not
840 /* Register a new architectural family with GDB.
842 Register support for the specified ARCHITECTURE with GDB. When
843 gdbarch determines that the specified architecture has been
844 selected, the corresponding INIT function is called.
848 The INIT function takes two parameters: INFO which contains the
849 information available to gdbarch about the (possibly new)
850 architecture; ARCHES which is a list of the previously created
851 \`\`struct gdbarch'' for this architecture.
853 The INFO parameter is, as far as possible, be pre-initialized with
854 information obtained from INFO.ABFD or the global defaults.
856 The ARCHES parameter is a linked list (sorted most recently used)
857 of all the previously created architures for this architecture
858 family. The (possibly NULL) ARCHES->gdbarch can used to access
859 values from the previously selected architecture for this
860 architecture family. The global \`\`current_gdbarch'' shall not be
863 The INIT function shall return any of: NULL - indicating that it
864 doesn't recognize the selected architecture; an existing \`\`struct
865 gdbarch'' from the ARCHES list - indicating that the new
866 architecture is just a synonym for an earlier architecture (see
867 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
868 - that describes the selected architecture (see gdbarch_alloc()).
870 The DUMP_TDEP function shall print out all target specific values.
871 Care should be taken to ensure that the function works in both the
872 multi-arch and non- multi-arch cases. */
876 struct gdbarch *gdbarch;
877 struct gdbarch_list *next;
882 /* Use default: NULL (ZERO). */
883 const struct bfd_arch_info *bfd_arch_info;
885 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
888 /* Use default: NULL (ZERO). */
891 /* Use default: NULL (ZERO). */
892 struct gdbarch_tdep_info *tdep_info;
894 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
895 enum gdb_osabi osabi;
897 /* Use default: NULL (ZERO). */
898 const struct target_desc *target_desc;
901 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
902 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
904 /* DEPRECATED - use gdbarch_register() */
905 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
907 extern void gdbarch_register (enum bfd_architecture architecture,
908 gdbarch_init_ftype *,
909 gdbarch_dump_tdep_ftype *);
912 /* Return a freshly allocated, NULL terminated, array of the valid
913 architecture names. Since architectures are registered during the
914 _initialize phase this function only returns useful information
915 once initialization has been completed. */
917 extern const char **gdbarch_printable_names (void);
920 /* Helper function. Search the list of ARCHES for a GDBARCH that
921 matches the information provided by INFO. */
923 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
926 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
927 basic initialization using values obtained from the INFO and TDEP
928 parameters. set_gdbarch_*() functions are called to complete the
929 initialization of the object. */
931 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
934 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
935 It is assumed that the caller freeds the \`\`struct
938 extern void gdbarch_free (struct gdbarch *);
941 /* Helper function. Allocate memory from the \`\`struct gdbarch''
942 obstack. The memory is freed when the corresponding architecture
945 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
946 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
947 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
950 /* Helper function. Force an update of the current architecture.
952 The actual architecture selected is determined by INFO, \`\`(gdb) set
953 architecture'' et.al., the existing architecture and BFD's default
954 architecture. INFO should be initialized to zero and then selected
955 fields should be updated.
957 Returns non-zero if the update succeeds */
959 extern int gdbarch_update_p (struct gdbarch_info info);
962 /* Helper function. Find an architecture matching info.
964 INFO should be initialized using gdbarch_info_init, relevant fields
965 set, and then finished using gdbarch_info_fill.
967 Returns the corresponding architecture, or NULL if no matching
968 architecture was found. "current_gdbarch" is not updated. */
970 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
973 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
975 FIXME: kettenis/20031124: Of the functions that follow, only
976 gdbarch_from_bfd is supposed to survive. The others will
977 dissappear since in the future GDB will (hopefully) be truly
978 multi-arch. However, for now we're still stuck with the concept of
979 a single active architecture. */
981 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
984 /* Register per-architecture data-pointer.
986 Reserve space for a per-architecture data-pointer. An identifier
987 for the reserved data-pointer is returned. That identifer should
988 be saved in a local static variable.
990 Memory for the per-architecture data shall be allocated using
991 gdbarch_obstack_zalloc. That memory will be deleted when the
992 corresponding architecture object is deleted.
994 When a previously created architecture is re-selected, the
995 per-architecture data-pointer for that previous architecture is
996 restored. INIT() is not re-called.
998 Multiple registrarants for any architecture are allowed (and
999 strongly encouraged). */
1001 struct gdbarch_data;
1003 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1004 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1005 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1006 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1007 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1008 struct gdbarch_data *data,
1011 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1014 /* Set the dynamic target-system-dependent parameters (architecture,
1015 byte-order, ...) using information found in the BFD */
1017 extern void set_gdbarch_from_file (bfd *);
1020 /* Initialize the current architecture to the "first" one we find on
1023 extern void initialize_current_architecture (void);
1025 /* gdbarch trace variable */
1026 extern int gdbarch_debug;
1028 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1033 #../move-if-change new-gdbarch.h gdbarch.h
1034 compare_new gdbarch.h
1041 exec > new-gdbarch.c
1046 #include "arch-utils.h"
1049 #include "inferior.h"
1052 #include "floatformat.h"
1054 #include "gdb_assert.h"
1055 #include "gdb_string.h"
1056 #include "gdb-events.h"
1057 #include "reggroups.h"
1059 #include "gdb_obstack.h"
1061 /* Static function declarations */
1063 static void alloc_gdbarch_data (struct gdbarch *);
1065 /* Non-zero if we want to trace architecture code. */
1067 #ifndef GDBARCH_DEBUG
1068 #define GDBARCH_DEBUG 0
1070 int gdbarch_debug = GDBARCH_DEBUG;
1072 show_gdbarch_debug (struct ui_file *file, int from_tty,
1073 struct cmd_list_element *c, const char *value)
1075 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1079 pformat (const struct floatformat **format)
1084 /* Just print out one of them - this is only for diagnostics. */
1085 return format[0]->name;
1090 # gdbarch open the gdbarch object
1092 printf "/* Maintain the struct gdbarch object */\n"
1094 printf "struct gdbarch\n"
1096 printf " /* Has this architecture been fully initialized? */\n"
1097 printf " int initialized_p;\n"
1099 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1100 printf " struct obstack *obstack;\n"
1102 printf " /* basic architectural information */\n"
1103 function_list |
while do_read
1107 printf " ${returntype} ${function};\n"
1111 printf " /* target specific vector. */\n"
1112 printf " struct gdbarch_tdep *tdep;\n"
1113 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1115 printf " /* per-architecture data-pointers */\n"
1116 printf " unsigned nr_data;\n"
1117 printf " void **data;\n"
1119 printf " /* per-architecture swap-regions */\n"
1120 printf " struct gdbarch_swap *swap;\n"
1123 /* Multi-arch values.
1125 When extending this structure you must:
1127 Add the field below.
1129 Declare set/get functions and define the corresponding
1132 gdbarch_alloc(): If zero/NULL is not a suitable default,
1133 initialize the new field.
1135 verify_gdbarch(): Confirm that the target updated the field
1138 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1141 \`\`startup_gdbarch()'': Append an initial value to the static
1142 variable (base values on the host's c-type system).
1144 get_gdbarch(): Implement the set/get functions (probably using
1145 the macro's as shortcuts).
1150 function_list |
while do_read
1152 if class_is_variable_p
1154 printf " ${returntype} ${function};\n"
1155 elif class_is_function_p
1157 printf " gdbarch_${function}_ftype *${function};\n"
1162 # A pre-initialized vector
1166 /* The default architecture uses host values (for want of a better
1170 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1172 printf "struct gdbarch startup_gdbarch =\n"
1174 printf " 1, /* Always initialized. */\n"
1175 printf " NULL, /* The obstack. */\n"
1176 printf " /* basic architecture information */\n"
1177 function_list |
while do_read
1181 printf " ${staticdefault}, /* ${function} */\n"
1185 /* target specific vector and its dump routine */
1187 /*per-architecture data-pointers and swap regions */
1189 /* Multi-arch values */
1191 function_list |
while do_read
1193 if class_is_function_p || class_is_variable_p
1195 printf " ${staticdefault}, /* ${function} */\n"
1199 /* startup_gdbarch() */
1202 struct gdbarch *current_gdbarch = &startup_gdbarch;
1205 # Create a new gdbarch struct
1208 /* Create a new \`\`struct gdbarch'' based on information provided by
1209 \`\`struct gdbarch_info''. */
1214 gdbarch_alloc (const struct gdbarch_info *info,
1215 struct gdbarch_tdep *tdep)
1217 struct gdbarch *gdbarch;
1219 /* Create an obstack for allocating all the per-architecture memory,
1220 then use that to allocate the architecture vector. */
1221 struct obstack *obstack = XMALLOC (struct obstack);
1222 obstack_init (obstack);
1223 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1224 memset (gdbarch, 0, sizeof (*gdbarch));
1225 gdbarch->obstack = obstack;
1227 alloc_gdbarch_data (gdbarch);
1229 gdbarch->tdep = tdep;
1232 function_list |
while do_read
1236 printf " gdbarch->${function} = info->${function};\n"
1240 printf " /* Force the explicit initialization of these. */\n"
1241 function_list |
while do_read
1243 if class_is_function_p || class_is_variable_p
1245 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1247 printf " gdbarch->${function} = ${predefault};\n"
1252 /* gdbarch_alloc() */
1258 # Free a gdbarch struct.
1262 /* Allocate extra space using the per-architecture obstack. */
1265 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1267 void *data = obstack_alloc (arch->obstack, size);
1268 memset (data, 0, size);
1273 /* Free a gdbarch struct. This should never happen in normal
1274 operation --- once you've created a gdbarch, you keep it around.
1275 However, if an architecture's init function encounters an error
1276 building the structure, it may need to clean up a partially
1277 constructed gdbarch. */
1280 gdbarch_free (struct gdbarch *arch)
1282 struct obstack *obstack;
1283 gdb_assert (arch != NULL);
1284 gdb_assert (!arch->initialized_p);
1285 obstack = arch->obstack;
1286 obstack_free (obstack, 0); /* Includes the ARCH. */
1291 # verify a new architecture
1295 /* Ensure that all values in a GDBARCH are reasonable. */
1298 verify_gdbarch (struct gdbarch *gdbarch)
1300 struct ui_file *log;
1301 struct cleanup *cleanups;
1304 log = mem_fileopen ();
1305 cleanups = make_cleanup_ui_file_delete (log);
1307 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1308 fprintf_unfiltered (log, "\n\tbyte-order");
1309 if (gdbarch->bfd_arch_info == NULL)
1310 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1311 /* Check those that need to be defined for the given multi-arch level. */
1313 function_list |
while do_read
1315 if class_is_function_p || class_is_variable_p
1317 if [ "x${invalid_p}" = "x0" ]
1319 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1320 elif class_is_predicate_p
1322 printf " /* Skip verify of ${function}, has predicate */\n"
1323 # FIXME: See do_read for potential simplification
1324 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1326 printf " if (${invalid_p})\n"
1327 printf " gdbarch->${function} = ${postdefault};\n"
1328 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1330 printf " if (gdbarch->${function} == ${predefault})\n"
1331 printf " gdbarch->${function} = ${postdefault};\n"
1332 elif [ -n "${postdefault}" ]
1334 printf " if (gdbarch->${function} == 0)\n"
1335 printf " gdbarch->${function} = ${postdefault};\n"
1336 elif [ -n "${invalid_p}" ]
1338 printf " if (${invalid_p})\n"
1339 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1340 elif [ -n "${predefault}" ]
1342 printf " if (gdbarch->${function} == ${predefault})\n"
1343 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1348 buf = ui_file_xstrdup (log, &dummy);
1349 make_cleanup (xfree, buf);
1350 if (strlen (buf) > 0)
1351 internal_error (__FILE__, __LINE__,
1352 _("verify_gdbarch: the following are invalid ...%s"),
1354 do_cleanups (cleanups);
1358 # dump the structure
1362 /* Print out the details of the current architecture. */
1365 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1367 const char *gdb_nm_file = "<not-defined>";
1368 #if defined (GDB_NM_FILE)
1369 gdb_nm_file = GDB_NM_FILE;
1371 fprintf_unfiltered (file,
1372 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1375 function_list |
sort -t: -k 3 |
while do_read
1377 # First the predicate
1378 if class_is_predicate_p
1380 printf " fprintf_unfiltered (file,\n"
1381 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1382 printf " gdbarch_${function}_p (gdbarch));\n"
1384 # Print the corresponding value.
1385 if class_is_function_p
1387 printf " fprintf_unfiltered (file,\n"
1388 printf " \"gdbarch_dump: ${function} = <0x%%lx>\\\\n\",\n"
1389 printf " (long) gdbarch->${function});\n"
1392 case "${print}:${returntype}" in
1395 print
="paddr_nz (gdbarch->${function})"
1399 print
="paddr_d (gdbarch->${function})"
1405 printf " fprintf_unfiltered (file,\n"
1406 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1407 printf " ${print});\n"
1411 if (gdbarch->dump_tdep != NULL)
1412 gdbarch->dump_tdep (gdbarch, file);
1420 struct gdbarch_tdep *
1421 gdbarch_tdep (struct gdbarch *gdbarch)
1423 if (gdbarch_debug >= 2)
1424 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1425 return gdbarch->tdep;
1429 function_list |
while do_read
1431 if class_is_predicate_p
1435 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1437 printf " gdb_assert (gdbarch != NULL);\n"
1438 printf " return ${predicate};\n"
1441 if class_is_function_p
1444 printf "${returntype}\n"
1445 if [ "x${formal}" = "xvoid" ]
1447 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1449 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1452 printf " gdb_assert (gdbarch != NULL);\n"
1453 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1454 if class_is_predicate_p
&& test -n "${predefault}"
1456 # Allow a call to a function with a predicate.
1457 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1459 printf " if (gdbarch_debug >= 2)\n"
1460 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1461 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1463 if class_is_multiarch_p
1470 if class_is_multiarch_p
1472 params
="gdbarch, ${actual}"
1477 if [ "x${returntype}" = "xvoid" ]
1479 printf " gdbarch->${function} (${params});\n"
1481 printf " return gdbarch->${function} (${params});\n"
1486 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1487 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1489 printf " gdbarch->${function} = ${function};\n"
1491 elif class_is_variable_p
1494 printf "${returntype}\n"
1495 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1497 printf " gdb_assert (gdbarch != NULL);\n"
1498 if [ "x${invalid_p}" = "x0" ]
1500 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1501 elif [ -n "${invalid_p}" ]
1503 printf " /* Check variable is valid. */\n"
1504 printf " gdb_assert (!(${invalid_p}));\n"
1505 elif [ -n "${predefault}" ]
1507 printf " /* Check variable changed from pre-default. */\n"
1508 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1510 printf " if (gdbarch_debug >= 2)\n"
1511 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1512 printf " return gdbarch->${function};\n"
1516 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1517 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1519 printf " gdbarch->${function} = ${function};\n"
1521 elif class_is_info_p
1524 printf "${returntype}\n"
1525 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1527 printf " gdb_assert (gdbarch != NULL);\n"
1528 printf " if (gdbarch_debug >= 2)\n"
1529 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1530 printf " return gdbarch->${function};\n"
1535 # All the trailing guff
1539 /* Keep a registry of per-architecture data-pointers required by GDB
1546 gdbarch_data_pre_init_ftype *pre_init;
1547 gdbarch_data_post_init_ftype *post_init;
1550 struct gdbarch_data_registration
1552 struct gdbarch_data *data;
1553 struct gdbarch_data_registration *next;
1556 struct gdbarch_data_registry
1559 struct gdbarch_data_registration *registrations;
1562 struct gdbarch_data_registry gdbarch_data_registry =
1567 static struct gdbarch_data *
1568 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1569 gdbarch_data_post_init_ftype *post_init)
1571 struct gdbarch_data_registration **curr;
1572 /* Append the new registraration. */
1573 for (curr = &gdbarch_data_registry.registrations;
1575 curr = &(*curr)->next);
1576 (*curr) = XMALLOC (struct gdbarch_data_registration);
1577 (*curr)->next = NULL;
1578 (*curr)->data = XMALLOC (struct gdbarch_data);
1579 (*curr)->data->index = gdbarch_data_registry.nr++;
1580 (*curr)->data->pre_init = pre_init;
1581 (*curr)->data->post_init = post_init;
1582 (*curr)->data->init_p = 1;
1583 return (*curr)->data;
1586 struct gdbarch_data *
1587 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1589 return gdbarch_data_register (pre_init, NULL);
1592 struct gdbarch_data *
1593 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1595 return gdbarch_data_register (NULL, post_init);
1598 /* Create/delete the gdbarch data vector. */
1601 alloc_gdbarch_data (struct gdbarch *gdbarch)
1603 gdb_assert (gdbarch->data == NULL);
1604 gdbarch->nr_data = gdbarch_data_registry.nr;
1605 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1608 /* Initialize the current value of the specified per-architecture
1612 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1613 struct gdbarch_data *data,
1616 gdb_assert (data->index < gdbarch->nr_data);
1617 gdb_assert (gdbarch->data[data->index] == NULL);
1618 gdb_assert (data->pre_init == NULL);
1619 gdbarch->data[data->index] = pointer;
1622 /* Return the current value of the specified per-architecture
1626 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1628 gdb_assert (data->index < gdbarch->nr_data);
1629 if (gdbarch->data[data->index] == NULL)
1631 /* The data-pointer isn't initialized, call init() to get a
1633 if (data->pre_init != NULL)
1634 /* Mid architecture creation: pass just the obstack, and not
1635 the entire architecture, as that way it isn't possible for
1636 pre-init code to refer to undefined architecture
1638 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1639 else if (gdbarch->initialized_p
1640 && data->post_init != NULL)
1641 /* Post architecture creation: pass the entire architecture
1642 (as all fields are valid), but be careful to also detect
1643 recursive references. */
1645 gdb_assert (data->init_p);
1647 gdbarch->data[data->index] = data->post_init (gdbarch);
1651 /* The architecture initialization hasn't completed - punt -
1652 hope that the caller knows what they are doing. Once
1653 deprecated_set_gdbarch_data has been initialized, this can be
1654 changed to an internal error. */
1656 gdb_assert (gdbarch->data[data->index] != NULL);
1658 return gdbarch->data[data->index];
1662 /* Keep a registry of the architectures known by GDB. */
1664 struct gdbarch_registration
1666 enum bfd_architecture bfd_architecture;
1667 gdbarch_init_ftype *init;
1668 gdbarch_dump_tdep_ftype *dump_tdep;
1669 struct gdbarch_list *arches;
1670 struct gdbarch_registration *next;
1673 static struct gdbarch_registration *gdbarch_registry = NULL;
1676 append_name (const char ***buf, int *nr, const char *name)
1678 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1684 gdbarch_printable_names (void)
1686 /* Accumulate a list of names based on the registed list of
1688 enum bfd_architecture a;
1690 const char **arches = NULL;
1691 struct gdbarch_registration *rego;
1692 for (rego = gdbarch_registry;
1696 const struct bfd_arch_info *ap;
1697 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1699 internal_error (__FILE__, __LINE__,
1700 _("gdbarch_architecture_names: multi-arch unknown"));
1703 append_name (&arches, &nr_arches, ap->printable_name);
1708 append_name (&arches, &nr_arches, NULL);
1714 gdbarch_register (enum bfd_architecture bfd_architecture,
1715 gdbarch_init_ftype *init,
1716 gdbarch_dump_tdep_ftype *dump_tdep)
1718 struct gdbarch_registration **curr;
1719 const struct bfd_arch_info *bfd_arch_info;
1720 /* Check that BFD recognizes this architecture */
1721 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1722 if (bfd_arch_info == NULL)
1724 internal_error (__FILE__, __LINE__,
1725 _("gdbarch: Attempt to register unknown architecture (%d)"),
1728 /* Check that we haven't seen this architecture before */
1729 for (curr = &gdbarch_registry;
1731 curr = &(*curr)->next)
1733 if (bfd_architecture == (*curr)->bfd_architecture)
1734 internal_error (__FILE__, __LINE__,
1735 _("gdbarch: Duplicate registraration of architecture (%s)"),
1736 bfd_arch_info->printable_name);
1740 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1741 bfd_arch_info->printable_name,
1744 (*curr) = XMALLOC (struct gdbarch_registration);
1745 (*curr)->bfd_architecture = bfd_architecture;
1746 (*curr)->init = init;
1747 (*curr)->dump_tdep = dump_tdep;
1748 (*curr)->arches = NULL;
1749 (*curr)->next = NULL;
1753 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1754 gdbarch_init_ftype *init)
1756 gdbarch_register (bfd_architecture, init, NULL);
1760 /* Look for an architecture using gdbarch_info. */
1762 struct gdbarch_list *
1763 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1764 const struct gdbarch_info *info)
1766 for (; arches != NULL; arches = arches->next)
1768 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1770 if (info->byte_order != arches->gdbarch->byte_order)
1772 if (info->osabi != arches->gdbarch->osabi)
1774 if (info->target_desc != arches->gdbarch->target_desc)
1782 /* Find an architecture that matches the specified INFO. Create a new
1783 architecture if needed. Return that new architecture. Assumes
1784 that there is no current architecture. */
1786 static struct gdbarch *
1787 find_arch_by_info (struct gdbarch_info info)
1789 struct gdbarch *new_gdbarch;
1790 struct gdbarch_registration *rego;
1792 /* The existing architecture has been swapped out - all this code
1793 works from a clean slate. */
1794 gdb_assert (current_gdbarch == NULL);
1796 /* Fill in missing parts of the INFO struct using a number of
1797 sources: "set ..."; INFOabfd supplied; and the global
1799 gdbarch_info_fill (&info);
1801 /* Must have found some sort of architecture. */
1802 gdb_assert (info.bfd_arch_info != NULL);
1806 fprintf_unfiltered (gdb_stdlog,
1807 "find_arch_by_info: info.bfd_arch_info %s\n",
1808 (info.bfd_arch_info != NULL
1809 ? info.bfd_arch_info->printable_name
1811 fprintf_unfiltered (gdb_stdlog,
1812 "find_arch_by_info: info.byte_order %d (%s)\n",
1814 (info.byte_order == BFD_ENDIAN_BIG ? "big"
1815 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
1817 fprintf_unfiltered (gdb_stdlog,
1818 "find_arch_by_info: info.osabi %d (%s)\n",
1819 info.osabi, gdbarch_osabi_name (info.osabi));
1820 fprintf_unfiltered (gdb_stdlog,
1821 "find_arch_by_info: info.abfd 0x%lx\n",
1823 fprintf_unfiltered (gdb_stdlog,
1824 "find_arch_by_info: info.tdep_info 0x%lx\n",
1825 (long) info.tdep_info);
1828 /* Find the tdep code that knows about this architecture. */
1829 for (rego = gdbarch_registry;
1832 if (rego->bfd_architecture == info.bfd_arch_info->arch)
1837 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1838 "No matching architecture\n");
1842 /* Ask the tdep code for an architecture that matches "info". */
1843 new_gdbarch = rego->init (info, rego->arches);
1845 /* Did the tdep code like it? No. Reject the change and revert to
1846 the old architecture. */
1847 if (new_gdbarch == NULL)
1850 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1851 "Target rejected architecture\n");
1855 /* Is this a pre-existing architecture (as determined by already
1856 being initialized)? Move it to the front of the architecture
1857 list (keeping the list sorted Most Recently Used). */
1858 if (new_gdbarch->initialized_p)
1860 struct gdbarch_list **list;
1861 struct gdbarch_list *this;
1863 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1864 "Previous architecture 0x%08lx (%s) selected\n",
1866 new_gdbarch->bfd_arch_info->printable_name);
1867 /* Find the existing arch in the list. */
1868 for (list = ®o->arches;
1869 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
1870 list = &(*list)->next);
1871 /* It had better be in the list of architectures. */
1872 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
1875 (*list) = this->next;
1876 /* Insert THIS at the front. */
1877 this->next = rego->arches;
1878 rego->arches = this;
1883 /* It's a new architecture. */
1885 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1886 "New architecture 0x%08lx (%s) selected\n",
1888 new_gdbarch->bfd_arch_info->printable_name);
1890 /* Insert the new architecture into the front of the architecture
1891 list (keep the list sorted Most Recently Used). */
1893 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
1894 this->next = rego->arches;
1895 this->gdbarch = new_gdbarch;
1896 rego->arches = this;
1899 /* Check that the newly installed architecture is valid. Plug in
1900 any post init values. */
1901 new_gdbarch->dump_tdep = rego->dump_tdep;
1902 verify_gdbarch (new_gdbarch);
1903 new_gdbarch->initialized_p = 1;
1906 gdbarch_dump (new_gdbarch, gdb_stdlog);
1912 gdbarch_find_by_info (struct gdbarch_info info)
1914 struct gdbarch *new_gdbarch;
1916 /* Save the previously selected architecture, setting the global to
1917 NULL. This stops things like gdbarch->init() trying to use the
1918 previous architecture's configuration. The previous architecture
1919 may not even be of the same architecture family. The most recent
1920 architecture of the same family is found at the head of the
1921 rego->arches list. */
1922 struct gdbarch *old_gdbarch = current_gdbarch;
1923 current_gdbarch = NULL;
1925 /* Find the specified architecture. */
1926 new_gdbarch = find_arch_by_info (info);
1928 /* Restore the existing architecture. */
1929 gdb_assert (current_gdbarch == NULL);
1930 current_gdbarch = old_gdbarch;
1935 /* Make the specified architecture current. */
1938 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
1940 gdb_assert (new_gdbarch != NULL);
1941 gdb_assert (current_gdbarch != NULL);
1942 gdb_assert (new_gdbarch->initialized_p);
1943 current_gdbarch = new_gdbarch;
1944 architecture_changed_event ();
1945 reinit_frame_cache ();
1948 extern void _initialize_gdbarch (void);
1951 _initialize_gdbarch (void)
1953 struct cmd_list_element *c;
1955 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
1956 Set architecture debugging."), _("\\
1957 Show architecture debugging."), _("\\
1958 When non-zero, architecture debugging is enabled."),
1961 &setdebuglist, &showdebuglist);
1967 #../move-if-change new-gdbarch.c gdbarch.c
1968 compare_new gdbarch.c