3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
6 # 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)
346 # Number of bits in a char or unsigned char for the target machine.
347 # Just like CHAR_BIT in <limits.h> but describes the target machine.
348 # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
350 # Number of bits in a short or unsigned short for the target machine.
351 v:int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0
352 # Number of bits in an int or unsigned int for the target machine.
353 v:int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0
354 # Number of bits in a long or unsigned long for the target machine.
355 v:int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
356 # Number of bits in a long long or unsigned long long for the target
358 v:int:long_long_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
360 # The ABI default bit-size and format for "float", "double", and "long
361 # double". These bit/format pairs should eventually be combined into
362 # a single object. For the moment, just initialize them as a pair.
363 # Each format describes both the big and little endian layouts (if
366 v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
367 v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format)
368 v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
369 v:const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (gdbarch->double_format)
370 v:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
371 v:const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (gdbarch->long_double_format)
373 # For most targets, a pointer on the target and its representation as an
374 # address in GDB have the same size and "look the same". For such a
375 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
376 # / addr_bit will be set from it.
378 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
379 # also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
382 # ptr_bit is the size of a pointer on the target
383 v:int:ptr_bit:::8 * sizeof (void*):gdbarch->int_bit::0
384 # addr_bit is the size of a target address as represented in gdb
385 v:int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (gdbarch):
387 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
388 v:int:char_signed:::1:-1:1
390 F:CORE_ADDR:read_pc:struct regcache *regcache:regcache
391 F:void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
392 # Function for getting target's idea of a frame pointer. FIXME: GDB's
393 # whole scheme for dealing with "frames" and "frame pointers" needs a
395 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
397 M:void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
398 M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
400 v:int:num_regs:::0:-1
401 # This macro gives the number of pseudo-registers that live in the
402 # register namespace but do not get fetched or stored on the target.
403 # These pseudo-registers may be aliases for other registers,
404 # combinations of other registers, or they may be computed by GDB.
405 v:int:num_pseudo_regs:::0:0::0
407 # GDB's standard (or well known) register numbers. These can map onto
408 # a real register or a pseudo (computed) register or not be defined at
410 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
411 v:int:sp_regnum:::-1:-1::0
412 v:int:pc_regnum:::-1:-1::0
413 v:int:ps_regnum:::-1:-1::0
414 v:int:fp0_regnum:::0:-1::0
415 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
416 m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
417 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
418 m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
419 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
420 m:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr::no_op_reg_to_regnum::0
421 # Convert from an sdb register number to an internal gdb register number.
422 m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
423 m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
424 m:const char *:register_name:int regnr:regnr::0
426 # Return the type of a register specified by the architecture. Only
427 # the register cache should call this function directly; others should
428 # use "register_type".
429 M:struct type *:register_type:int reg_nr:reg_nr
431 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
432 M:struct frame_id:unwind_dummy_id:struct frame_info *info:info
433 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
434 # deprecated_fp_regnum.
435 v:int:deprecated_fp_regnum:::-1:-1::0
437 # See gdbint.texinfo. See infcall.c.
438 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
439 v:int:call_dummy_location::::AT_ENTRY_POINT::0
440 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
442 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
443 M:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
444 M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
445 # MAP a GDB RAW register number onto a simulator register number. See
446 # also include/...-sim.h.
447 m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
448 m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
449 m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
450 # setjmp/longjmp support.
451 F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
453 v:int:believe_pcc_promotion:::::::
455 m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
456 f:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0
457 f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
458 # Construct a value representing the contents of register REGNUM in
459 # frame FRAME, interpreted as type TYPE. The routine needs to
460 # allocate and return a struct value with all value attributes
461 # (but not the value contents) filled in.
462 f:struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
464 f:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
465 f:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
466 M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
468 # It has been suggested that this, well actually its predecessor,
469 # should take the type/value of the function to be called and not the
470 # return type. This is left as an exercise for the reader.
472 M:enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:valtype, regcache, readbuf, writebuf
474 f:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
475 f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
476 m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
477 M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
478 f:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
479 f:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
480 v:CORE_ADDR:decr_pc_after_break:::0:::0
482 # A function can be addressed by either it's "pointer" (possibly a
483 # descriptor address) or "entry point" (first executable instruction).
484 # The method "convert_from_func_ptr_addr" converting the former to the
485 # latter. gdbarch_deprecated_function_start_offset is being used to implement
486 # a simplified subset of that functionality - the function's address
487 # corresponds to the "function pointer" and the function's start
488 # corresponds to the "function entry point" - and hence is redundant.
490 v:CORE_ADDR:deprecated_function_start_offset:::0:::0
492 # Return the remote protocol register number associated with this
493 # register. Normally the identity mapping.
494 m:int:remote_register_number:int regno:regno::default_remote_register_number::0
496 # Fetch the target specific address used to represent a load module.
497 F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
499 v:CORE_ADDR:frame_args_skip:::0:::0
500 M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
501 M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
502 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
503 # frame-base. Enable frame-base before frame-unwind.
504 F:int:frame_num_args:struct frame_info *frame:frame
506 M:CORE_ADDR:frame_align:CORE_ADDR address:address
507 m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
508 v:int:frame_red_zone_size
510 m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
511 # On some machines there are bits in addresses which are not really
512 # part of the address, but are used by the kernel, the hardware, etc.
513 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
514 # we get a "real" address such as one would find in a symbol table.
515 # This is used only for addresses of instructions, and even then I'm
516 # not sure it's used in all contexts. It exists to deal with there
517 # being a few stray bits in the PC which would mislead us, not as some
518 # sort of generic thing to handle alignment or segmentation (it's
519 # possible it should be in TARGET_READ_PC instead).
520 f:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
521 # It is not at all clear why gdbarch_smash_text_address is not folded into
522 # gdbarch_addr_bits_remove.
523 f:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
525 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
526 # indicates if the target needs software single step. An ISA method to
529 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
530 # breakpoints using the breakpoint system instead of blatting memory directly
533 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
534 # target can single step. If not, then implement single step using breakpoints.
536 # A return value of 1 means that the software_single_step breakpoints
537 # were inserted; 0 means they were not.
538 F:int:software_single_step:struct frame_info *frame:frame
540 # Return non-zero if the processor is executing a delay slot and a
541 # further single-step is needed before the instruction finishes.
542 M:int:single_step_through_delay:struct frame_info *frame:frame
543 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
544 # disassembler. Perhaps objdump can handle it?
545 f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
546 f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
549 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
550 # evaluates non-zero, this is the address where the debugger will place
551 # a step-resume breakpoint to get us past the dynamic linker.
552 m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
553 # Some systems also have trampoline code for returning from shared libs.
554 f:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
556 # A target might have problems with watchpoints as soon as the stack
557 # frame of the current function has been destroyed. This mostly happens
558 # as the first action in a funtion's epilogue. in_function_epilogue_p()
559 # is defined to return a non-zero value if either the given addr is one
560 # instruction after the stack destroying instruction up to the trailing
561 # return instruction or if we can figure out that the stack frame has
562 # already been invalidated regardless of the value of addr. Targets
563 # which don't suffer from that problem could just let this functionality
565 m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
566 # Given a vector of command-line arguments, return a newly allocated
567 # string which, when passed to the create_inferior function, will be
568 # parsed (on Unix systems, by the shell) to yield the same vector.
569 # This function should call error() if the argument vector is not
570 # representable for this target or if this target does not support
571 # command-line arguments.
572 # ARGC is the number of elements in the vector.
573 # ARGV is an array of strings, one per argument.
574 m:char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0
575 f:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
576 f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
577 v:const char *:name_of_malloc:::"malloc":"malloc"::0:gdbarch->name_of_malloc
578 v:int:cannot_step_breakpoint:::0:0::0
579 v:int:have_nonsteppable_watchpoint:::0:0::0
580 F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
581 M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
582 M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
583 # Is a register in a group
584 m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
585 # Fetch the pointer to the ith function argument.
586 F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
588 # Return the appropriate register set for a core file section with
589 # name SECT_NAME and size SECT_SIZE.
590 M:const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
592 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
593 # core file into buffer READBUF with length LEN.
594 M:LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
596 # If the elements of C++ vtables are in-place function descriptors rather
597 # than normal function pointers (which may point to code or a descriptor),
599 v:int:vtable_function_descriptors:::0:0::0
601 # Set if the least significant bit of the delta is used instead of the least
602 # significant bit of the pfn for pointers to virtual member functions.
603 v:int:vbit_in_delta:::0:0::0
605 # Advance PC to next instruction in order to skip a permanent breakpoint.
606 F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache
608 # Refresh overlay mapped state for section OSECT.
609 F:void:overlay_update:struct obj_section *osect:osect
611 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
613 # Handle special encoding of static variables in stabs debug info.
614 F:char *:static_transform_name:char *name:name
615 # Set if the address in N_SO or N_FUN stabs may be zero.
616 v:int:sofun_address_maybe_missing:::0:0::0
623 exec > new-gdbarch.log
624 function_list | while do_read
627 ${class} ${returntype} ${function} ($formal)
631 eval echo \"\ \ \ \ ${r}=\${${r}}\"
633 if class_is_predicate_p && fallback_default_p
635 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
639 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
641 echo "Error: postdefault is useless when invalid_p=0" 1>&2
645 if class_is_multiarch_p
647 if class_is_predicate_p ; then :
648 elif test "x${predefault}" = "x"
650 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
659 compare_new gdbarch.log
665 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
667 /* Dynamic architecture support for GDB, the GNU debugger.
669 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
670 Free Software Foundation, Inc.
672 This file is part of GDB.
674 This program is free software; you can redistribute it and/or modify
675 it under the terms of the GNU General Public License as published by
676 the Free Software Foundation; either version 3 of the License, or
677 (at your option) any later version.
679 This program is distributed in the hope that it will be useful,
680 but WITHOUT ANY WARRANTY; without even the implied warranty of
681 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
682 GNU General Public License for more details.
684 You should have received a copy of the GNU General Public License
685 along with this program. If not, see <http://www.gnu.org/licenses/>. */
687 /* This file was created with the aid of \`\`gdbarch.sh''.
689 The Bourne shell script \`\`gdbarch.sh'' creates the files
690 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
691 against the existing \`\`gdbarch.[hc]''. Any differences found
694 If editing this file, please also run gdbarch.sh and merge any
695 changes into that script. Conversely, when making sweeping changes
696 to this file, modifying gdbarch.sh and using its output may prove
718 struct minimal_symbol;
722 struct disassemble_info;
725 struct bp_target_info;
728 extern struct gdbarch *current_gdbarch;
734 printf "/* The following are pre-initialized by GDBARCH. */\n"
735 function_list | while do_read
740 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
741 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
748 printf "/* The following are initialized by the target dependent code. */\n"
749 function_list | while do_read
751 if [ -n "${comment}" ]
753 echo "${comment}" | sed \
759 if class_is_predicate_p
762 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
764 if class_is_variable_p
767 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
768 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
770 if class_is_function_p
773 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
775 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
776 elif class_is_multiarch_p
778 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
780 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
782 if [ "x${formal}" = "xvoid" ]
784 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
786 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
788 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
795 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
798 /* Mechanism for co-ordinating the selection of a specific
801 GDB targets (*-tdep.c) can register an interest in a specific
802 architecture. Other GDB components can register a need to maintain
803 per-architecture data.
805 The mechanisms below ensures that there is only a loose connection
806 between the set-architecture command and the various GDB
807 components. Each component can independently register their need
808 to maintain architecture specific data with gdbarch.
812 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
815 The more traditional mega-struct containing architecture specific
816 data for all the various GDB components was also considered. Since
817 GDB is built from a variable number of (fairly independent)
818 components it was determined that the global aproach was not
822 /* Register a new architectural family with GDB.
824 Register support for the specified ARCHITECTURE with GDB. When
825 gdbarch determines that the specified architecture has been
826 selected, the corresponding INIT function is called.
830 The INIT function takes two parameters: INFO which contains the
831 information available to gdbarch about the (possibly new)
832 architecture; ARCHES which is a list of the previously created
833 \`\`struct gdbarch'' for this architecture.
835 The INFO parameter is, as far as possible, be pre-initialized with
836 information obtained from INFO.ABFD or the global defaults.
838 The ARCHES parameter is a linked list (sorted most recently used)
839 of all the previously created architures for this architecture
840 family. The (possibly NULL) ARCHES->gdbarch can used to access
841 values from the previously selected architecture for this
842 architecture family. The global \`\`current_gdbarch'' shall not be
845 The INIT function shall return any of: NULL - indicating that it
846 doesn't recognize the selected architecture; an existing \`\`struct
847 gdbarch'' from the ARCHES list - indicating that the new
848 architecture is just a synonym for an earlier architecture (see
849 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
850 - that describes the selected architecture (see gdbarch_alloc()).
852 The DUMP_TDEP function shall print out all target specific values.
853 Care should be taken to ensure that the function works in both the
854 multi-arch and non- multi-arch cases. */
858 struct gdbarch *gdbarch;
859 struct gdbarch_list *next;
864 /* Use default: NULL (ZERO). */
865 const struct bfd_arch_info *bfd_arch_info;
867 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
870 /* Use default: NULL (ZERO). */
873 /* Use default: NULL (ZERO). */
874 struct gdbarch_tdep_info *tdep_info;
876 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
877 enum gdb_osabi osabi;
879 /* Use default: NULL (ZERO). */
880 const struct target_desc *target_desc;
883 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
884 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
886 /* DEPRECATED - use gdbarch_register() */
887 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
889 extern void gdbarch_register (enum bfd_architecture architecture,
890 gdbarch_init_ftype *,
891 gdbarch_dump_tdep_ftype *);
894 /* Return a freshly allocated, NULL terminated, array of the valid
895 architecture names. Since architectures are registered during the
896 _initialize phase this function only returns useful information
897 once initialization has been completed. */
899 extern const char **gdbarch_printable_names (void);
902 /* Helper function. Search the list of ARCHES for a GDBARCH that
903 matches the information provided by INFO. */
905 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
908 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
909 basic initialization using values obtained from the INFO and TDEP
910 parameters. set_gdbarch_*() functions are called to complete the
911 initialization of the object. */
913 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
916 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
917 It is assumed that the caller freeds the \`\`struct
920 extern void gdbarch_free (struct gdbarch *);
923 /* Helper function. Allocate memory from the \`\`struct gdbarch''
924 obstack. The memory is freed when the corresponding architecture
927 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
928 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
929 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
932 /* Helper function. Force an update of the current architecture.
934 The actual architecture selected is determined by INFO, \`\`(gdb) set
935 architecture'' et.al., the existing architecture and BFD's default
936 architecture. INFO should be initialized to zero and then selected
937 fields should be updated.
939 Returns non-zero if the update succeeds */
941 extern int gdbarch_update_p (struct gdbarch_info info);
944 /* Helper function. Find an architecture matching info.
946 INFO should be initialized using gdbarch_info_init, relevant fields
947 set, and then finished using gdbarch_info_fill.
949 Returns the corresponding architecture, or NULL if no matching
950 architecture was found. "current_gdbarch" is not updated. */
952 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
955 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
957 FIXME: kettenis/20031124: Of the functions that follow, only
958 gdbarch_from_bfd is supposed to survive. The others will
959 dissappear since in the future GDB will (hopefully) be truly
960 multi-arch. However, for now we're still stuck with the concept of
961 a single active architecture. */
963 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
966 /* Register per-architecture data-pointer.
968 Reserve space for a per-architecture data-pointer. An identifier
969 for the reserved data-pointer is returned. That identifer should
970 be saved in a local static variable.
972 Memory for the per-architecture data shall be allocated using
973 gdbarch_obstack_zalloc. That memory will be deleted when the
974 corresponding architecture object is deleted.
976 When a previously created architecture is re-selected, the
977 per-architecture data-pointer for that previous architecture is
978 restored. INIT() is not re-called.
980 Multiple registrarants for any architecture are allowed (and
981 strongly encouraged). */
985 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
986 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
987 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
988 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
989 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
990 struct gdbarch_data *data,
993 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
996 /* Set the dynamic target-system-dependent parameters (architecture,
997 byte-order, ...) using information found in the BFD */
999 extern void set_gdbarch_from_file (bfd *);
1002 /* Initialize the current architecture to the "first" one we find on
1005 extern void initialize_current_architecture (void);
1007 /* gdbarch trace variable */
1008 extern int gdbarch_debug;
1010 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1015 #../move-if-change new-gdbarch.h gdbarch.h
1016 compare_new gdbarch.h
1023 exec > new-gdbarch.c
1028 #include "arch-utils.h"
1031 #include "inferior.h"
1034 #include "floatformat.h"
1036 #include "gdb_assert.h"
1037 #include "gdb_string.h"
1038 #include "gdb-events.h"
1039 #include "reggroups.h"
1041 #include "gdb_obstack.h"
1043 /* Static function declarations */
1045 static void alloc_gdbarch_data (struct gdbarch *);
1047 /* Non-zero if we want to trace architecture code. */
1049 #ifndef GDBARCH_DEBUG
1050 #define GDBARCH_DEBUG 0
1052 int gdbarch_debug = GDBARCH_DEBUG;
1054 show_gdbarch_debug (struct ui_file *file, int from_tty,
1055 struct cmd_list_element *c, const char *value)
1057 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1061 pformat (const struct floatformat **format)
1066 /* Just print out one of them - this is only for diagnostics. */
1067 return format[0]->name;
1072 # gdbarch open the gdbarch object
1074 printf "/* Maintain the struct gdbarch object */\n"
1076 printf "struct gdbarch\n"
1078 printf " /* Has this architecture been fully initialized? */\n"
1079 printf " int initialized_p;\n"
1081 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1082 printf " struct obstack *obstack;\n"
1084 printf " /* basic architectural information */\n"
1085 function_list | while do_read
1089 printf " ${returntype} ${function};\n"
1093 printf " /* target specific vector. */\n"
1094 printf " struct gdbarch_tdep *tdep;\n"
1095 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1097 printf " /* per-architecture data-pointers */\n"
1098 printf " unsigned nr_data;\n"
1099 printf " void **data;\n"
1101 printf " /* per-architecture swap-regions */\n"
1102 printf " struct gdbarch_swap *swap;\n"
1105 /* Multi-arch values.
1107 When extending this structure you must:
1109 Add the field below.
1111 Declare set/get functions and define the corresponding
1114 gdbarch_alloc(): If zero/NULL is not a suitable default,
1115 initialize the new field.
1117 verify_gdbarch(): Confirm that the target updated the field
1120 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1123 \`\`startup_gdbarch()'': Append an initial value to the static
1124 variable (base values on the host's c-type system).
1126 get_gdbarch(): Implement the set/get functions (probably using
1127 the macro's as shortcuts).
1132 function_list | while do_read
1134 if class_is_variable_p
1136 printf " ${returntype} ${function};\n"
1137 elif class_is_function_p
1139 printf " gdbarch_${function}_ftype *${function};\n"
1144 # A pre-initialized vector
1148 /* The default architecture uses host values (for want of a better
1152 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1154 printf "struct gdbarch startup_gdbarch =\n"
1156 printf " 1, /* Always initialized. */\n"
1157 printf " NULL, /* The obstack. */\n"
1158 printf " /* basic architecture information */\n"
1159 function_list | while do_read
1163 printf " ${staticdefault}, /* ${function} */\n"
1167 /* target specific vector and its dump routine */
1169 /*per-architecture data-pointers and swap regions */
1171 /* Multi-arch values */
1173 function_list | while do_read
1175 if class_is_function_p || class_is_variable_p
1177 printf " ${staticdefault}, /* ${function} */\n"
1181 /* startup_gdbarch() */
1184 struct gdbarch *current_gdbarch = &startup_gdbarch;
1187 # Create a new gdbarch struct
1190 /* Create a new \`\`struct gdbarch'' based on information provided by
1191 \`\`struct gdbarch_info''. */
1196 gdbarch_alloc (const struct gdbarch_info *info,
1197 struct gdbarch_tdep *tdep)
1199 struct gdbarch *gdbarch;
1201 /* Create an obstack for allocating all the per-architecture memory,
1202 then use that to allocate the architecture vector. */
1203 struct obstack *obstack = XMALLOC (struct obstack);
1204 obstack_init (obstack);
1205 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1206 memset (gdbarch, 0, sizeof (*gdbarch));
1207 gdbarch->obstack = obstack;
1209 alloc_gdbarch_data (gdbarch);
1211 gdbarch->tdep = tdep;
1214 function_list | while do_read
1218 printf " gdbarch->${function} = info->${function};\n"
1222 printf " /* Force the explicit initialization of these. */\n"
1223 function_list | while do_read
1225 if class_is_function_p || class_is_variable_p
1227 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1229 printf " gdbarch->${function} = ${predefault};\n"
1234 /* gdbarch_alloc() */
1240 # Free a gdbarch struct.
1244 /* Allocate extra space using the per-architecture obstack. */
1247 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1249 void *data = obstack_alloc (arch->obstack, size);
1250 memset (data, 0, size);
1255 /* Free a gdbarch struct. This should never happen in normal
1256 operation --- once you've created a gdbarch, you keep it around.
1257 However, if an architecture's init function encounters an error
1258 building the structure, it may need to clean up a partially
1259 constructed gdbarch. */
1262 gdbarch_free (struct gdbarch *arch)
1264 struct obstack *obstack;
1265 gdb_assert (arch != NULL);
1266 gdb_assert (!arch->initialized_p);
1267 obstack = arch->obstack;
1268 obstack_free (obstack, 0); /* Includes the ARCH. */
1273 # verify a new architecture
1277 /* Ensure that all values in a GDBARCH are reasonable. */
1280 verify_gdbarch (struct gdbarch *gdbarch)
1282 struct ui_file *log;
1283 struct cleanup *cleanups;
1286 log = mem_fileopen ();
1287 cleanups = make_cleanup_ui_file_delete (log);
1289 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1290 fprintf_unfiltered (log, "\n\tbyte-order");
1291 if (gdbarch->bfd_arch_info == NULL)
1292 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1293 /* Check those that need to be defined for the given multi-arch level. */
1295 function_list | while do_read
1297 if class_is_function_p || class_is_variable_p
1299 if [ "x${invalid_p}" = "x0" ]
1301 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1302 elif class_is_predicate_p
1304 printf " /* Skip verify of ${function}, has predicate */\n"
1305 # FIXME: See do_read for potential simplification
1306 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1308 printf " if (${invalid_p})\n"
1309 printf " gdbarch->${function} = ${postdefault};\n"
1310 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1312 printf " if (gdbarch->${function} == ${predefault})\n"
1313 printf " gdbarch->${function} = ${postdefault};\n"
1314 elif [ -n "${postdefault}" ]
1316 printf " if (gdbarch->${function} == 0)\n"
1317 printf " gdbarch->${function} = ${postdefault};\n"
1318 elif [ -n "${invalid_p}" ]
1320 printf " if (${invalid_p})\n"
1321 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1322 elif [ -n "${predefault}" ]
1324 printf " if (gdbarch->${function} == ${predefault})\n"
1325 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1330 buf = ui_file_xstrdup (log, &dummy);
1331 make_cleanup (xfree, buf);
1332 if (strlen (buf) > 0)
1333 internal_error (__FILE__, __LINE__,
1334 _("verify_gdbarch: the following are invalid ...%s"),
1336 do_cleanups (cleanups);
1340 # dump the structure
1344 /* Print out the details of the current architecture. */
1347 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1349 const char *gdb_nm_file = "<not-defined>";
1350 #if defined (GDB_NM_FILE)
1351 gdb_nm_file = GDB_NM_FILE;
1353 fprintf_unfiltered (file,
1354 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1357 function_list | sort -t: -k 3 | while do_read
1359 # First the predicate
1360 if class_is_predicate_p
1362 printf " fprintf_unfiltered (file,\n"
1363 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1364 printf " gdbarch_${function}_p (gdbarch));\n"
1366 # Print the corresponding value.
1367 if class_is_function_p
1369 printf " fprintf_unfiltered (file,\n"
1370 printf " \"gdbarch_dump: ${function} = <0x%%lx>\\\\n\",\n"
1371 printf " (long) gdbarch->${function});\n"
1374 case "${print}:${returntype}" in
1377 print="paddr_nz (gdbarch->${function})"
1381 print="paddr_d (gdbarch->${function})"
1387 printf " fprintf_unfiltered (file,\n"
1388 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1389 printf " ${print});\n"
1393 if (gdbarch->dump_tdep != NULL)
1394 gdbarch->dump_tdep (gdbarch, file);
1402 struct gdbarch_tdep *
1403 gdbarch_tdep (struct gdbarch *gdbarch)
1405 if (gdbarch_debug >= 2)
1406 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1407 return gdbarch->tdep;
1411 function_list | while do_read
1413 if class_is_predicate_p
1417 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1419 printf " gdb_assert (gdbarch != NULL);\n"
1420 printf " return ${predicate};\n"
1423 if class_is_function_p
1426 printf "${returntype}\n"
1427 if [ "x${formal}" = "xvoid" ]
1429 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1431 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1434 printf " gdb_assert (gdbarch != NULL);\n"
1435 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1436 if class_is_predicate_p && test -n "${predefault}"
1438 # Allow a call to a function with a predicate.
1439 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1441 printf " if (gdbarch_debug >= 2)\n"
1442 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1443 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1445 if class_is_multiarch_p
1452 if class_is_multiarch_p
1454 params="gdbarch, ${actual}"
1459 if [ "x${returntype}" = "xvoid" ]
1461 printf " gdbarch->${function} (${params});\n"
1463 printf " return gdbarch->${function} (${params});\n"
1468 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1469 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1471 printf " gdbarch->${function} = ${function};\n"
1473 elif class_is_variable_p
1476 printf "${returntype}\n"
1477 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1479 printf " gdb_assert (gdbarch != NULL);\n"
1480 if [ "x${invalid_p}" = "x0" ]
1482 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1483 elif [ -n "${invalid_p}" ]
1485 printf " /* Check variable is valid. */\n"
1486 printf " gdb_assert (!(${invalid_p}));\n"
1487 elif [ -n "${predefault}" ]
1489 printf " /* Check variable changed from pre-default. */\n"
1490 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1492 printf " if (gdbarch_debug >= 2)\n"
1493 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1494 printf " return gdbarch->${function};\n"
1498 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1499 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1501 printf " gdbarch->${function} = ${function};\n"
1503 elif class_is_info_p
1506 printf "${returntype}\n"
1507 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1509 printf " gdb_assert (gdbarch != NULL);\n"
1510 printf " if (gdbarch_debug >= 2)\n"
1511 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1512 printf " return gdbarch->${function};\n"
1517 # All the trailing guff
1521 /* Keep a registry of per-architecture data-pointers required by GDB
1528 gdbarch_data_pre_init_ftype *pre_init;
1529 gdbarch_data_post_init_ftype *post_init;
1532 struct gdbarch_data_registration
1534 struct gdbarch_data *data;
1535 struct gdbarch_data_registration *next;
1538 struct gdbarch_data_registry
1541 struct gdbarch_data_registration *registrations;
1544 struct gdbarch_data_registry gdbarch_data_registry =
1549 static struct gdbarch_data *
1550 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1551 gdbarch_data_post_init_ftype *post_init)
1553 struct gdbarch_data_registration **curr;
1554 /* Append the new registraration. */
1555 for (curr = &gdbarch_data_registry.registrations;
1557 curr = &(*curr)->next);
1558 (*curr) = XMALLOC (struct gdbarch_data_registration);
1559 (*curr)->next = NULL;
1560 (*curr)->data = XMALLOC (struct gdbarch_data);
1561 (*curr)->data->index = gdbarch_data_registry.nr++;
1562 (*curr)->data->pre_init = pre_init;
1563 (*curr)->data->post_init = post_init;
1564 (*curr)->data->init_p = 1;
1565 return (*curr)->data;
1568 struct gdbarch_data *
1569 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1571 return gdbarch_data_register (pre_init, NULL);
1574 struct gdbarch_data *
1575 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1577 return gdbarch_data_register (NULL, post_init);
1580 /* Create/delete the gdbarch data vector. */
1583 alloc_gdbarch_data (struct gdbarch *gdbarch)
1585 gdb_assert (gdbarch->data == NULL);
1586 gdbarch->nr_data = gdbarch_data_registry.nr;
1587 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1590 /* Initialize the current value of the specified per-architecture
1594 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1595 struct gdbarch_data *data,
1598 gdb_assert (data->index < gdbarch->nr_data);
1599 gdb_assert (gdbarch->data[data->index] == NULL);
1600 gdb_assert (data->pre_init == NULL);
1601 gdbarch->data[data->index] = pointer;
1604 /* Return the current value of the specified per-architecture
1608 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1610 gdb_assert (data->index < gdbarch->nr_data);
1611 if (gdbarch->data[data->index] == NULL)
1613 /* The data-pointer isn't initialized, call init() to get a
1615 if (data->pre_init != NULL)
1616 /* Mid architecture creation: pass just the obstack, and not
1617 the entire architecture, as that way it isn't possible for
1618 pre-init code to refer to undefined architecture
1620 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1621 else if (gdbarch->initialized_p
1622 && data->post_init != NULL)
1623 /* Post architecture creation: pass the entire architecture
1624 (as all fields are valid), but be careful to also detect
1625 recursive references. */
1627 gdb_assert (data->init_p);
1629 gdbarch->data[data->index] = data->post_init (gdbarch);
1633 /* The architecture initialization hasn't completed - punt -
1634 hope that the caller knows what they are doing. Once
1635 deprecated_set_gdbarch_data has been initialized, this can be
1636 changed to an internal error. */
1638 gdb_assert (gdbarch->data[data->index] != NULL);
1640 return gdbarch->data[data->index];
1644 /* Keep a registry of the architectures known by GDB. */
1646 struct gdbarch_registration
1648 enum bfd_architecture bfd_architecture;
1649 gdbarch_init_ftype *init;
1650 gdbarch_dump_tdep_ftype *dump_tdep;
1651 struct gdbarch_list *arches;
1652 struct gdbarch_registration *next;
1655 static struct gdbarch_registration *gdbarch_registry = NULL;
1658 append_name (const char ***buf, int *nr, const char *name)
1660 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1666 gdbarch_printable_names (void)
1668 /* Accumulate a list of names based on the registed list of
1670 enum bfd_architecture a;
1672 const char **arches = NULL;
1673 struct gdbarch_registration *rego;
1674 for (rego = gdbarch_registry;
1678 const struct bfd_arch_info *ap;
1679 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1681 internal_error (__FILE__, __LINE__,
1682 _("gdbarch_architecture_names: multi-arch unknown"));
1685 append_name (&arches, &nr_arches, ap->printable_name);
1690 append_name (&arches, &nr_arches, NULL);
1696 gdbarch_register (enum bfd_architecture bfd_architecture,
1697 gdbarch_init_ftype *init,
1698 gdbarch_dump_tdep_ftype *dump_tdep)
1700 struct gdbarch_registration **curr;
1701 const struct bfd_arch_info *bfd_arch_info;
1702 /* Check that BFD recognizes this architecture */
1703 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1704 if (bfd_arch_info == NULL)
1706 internal_error (__FILE__, __LINE__,
1707 _("gdbarch: Attempt to register unknown architecture (%d)"),
1710 /* Check that we haven't seen this architecture before */
1711 for (curr = &gdbarch_registry;
1713 curr = &(*curr)->next)
1715 if (bfd_architecture == (*curr)->bfd_architecture)
1716 internal_error (__FILE__, __LINE__,
1717 _("gdbarch: Duplicate registraration of architecture (%s)"),
1718 bfd_arch_info->printable_name);
1722 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1723 bfd_arch_info->printable_name,
1726 (*curr) = XMALLOC (struct gdbarch_registration);
1727 (*curr)->bfd_architecture = bfd_architecture;
1728 (*curr)->init = init;
1729 (*curr)->dump_tdep = dump_tdep;
1730 (*curr)->arches = NULL;
1731 (*curr)->next = NULL;
1735 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1736 gdbarch_init_ftype *init)
1738 gdbarch_register (bfd_architecture, init, NULL);
1742 /* Look for an architecture using gdbarch_info. */
1744 struct gdbarch_list *
1745 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1746 const struct gdbarch_info *info)
1748 for (; arches != NULL; arches = arches->next)
1750 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1752 if (info->byte_order != arches->gdbarch->byte_order)
1754 if (info->osabi != arches->gdbarch->osabi)
1756 if (info->target_desc != arches->gdbarch->target_desc)
1764 /* Find an architecture that matches the specified INFO. Create a new
1765 architecture if needed. Return that new architecture. Assumes
1766 that there is no current architecture. */
1768 static struct gdbarch *
1769 find_arch_by_info (struct gdbarch_info info)
1771 struct gdbarch *new_gdbarch;
1772 struct gdbarch_registration *rego;
1774 /* The existing architecture has been swapped out - all this code
1775 works from a clean slate. */
1776 gdb_assert (current_gdbarch == NULL);
1778 /* Fill in missing parts of the INFO struct using a number of
1779 sources: "set ..."; INFOabfd supplied; and the global
1781 gdbarch_info_fill (&info);
1783 /* Must have found some sort of architecture. */
1784 gdb_assert (info.bfd_arch_info != NULL);
1788 fprintf_unfiltered (gdb_stdlog,
1789 "find_arch_by_info: info.bfd_arch_info %s\n",
1790 (info.bfd_arch_info != NULL
1791 ? info.bfd_arch_info->printable_name
1793 fprintf_unfiltered (gdb_stdlog,
1794 "find_arch_by_info: info.byte_order %d (%s)\n",
1796 (info.byte_order == BFD_ENDIAN_BIG ? "big"
1797 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
1799 fprintf_unfiltered (gdb_stdlog,
1800 "find_arch_by_info: info.osabi %d (%s)\n",
1801 info.osabi, gdbarch_osabi_name (info.osabi));
1802 fprintf_unfiltered (gdb_stdlog,
1803 "find_arch_by_info: info.abfd 0x%lx\n",
1805 fprintf_unfiltered (gdb_stdlog,
1806 "find_arch_by_info: info.tdep_info 0x%lx\n",
1807 (long) info.tdep_info);
1810 /* Find the tdep code that knows about this architecture. */
1811 for (rego = gdbarch_registry;
1814 if (rego->bfd_architecture == info.bfd_arch_info->arch)
1819 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1820 "No matching architecture\n");
1824 /* Ask the tdep code for an architecture that matches "info". */
1825 new_gdbarch = rego->init (info, rego->arches);
1827 /* Did the tdep code like it? No. Reject the change and revert to
1828 the old architecture. */
1829 if (new_gdbarch == NULL)
1832 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1833 "Target rejected architecture\n");
1837 /* Is this a pre-existing architecture (as determined by already
1838 being initialized)? Move it to the front of the architecture
1839 list (keeping the list sorted Most Recently Used). */
1840 if (new_gdbarch->initialized_p)
1842 struct gdbarch_list **list;
1843 struct gdbarch_list *this;
1845 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1846 "Previous architecture 0x%08lx (%s) selected\n",
1848 new_gdbarch->bfd_arch_info->printable_name);
1849 /* Find the existing arch in the list. */
1850 for (list = ®o->arches;
1851 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
1852 list = &(*list)->next);
1853 /* It had better be in the list of architectures. */
1854 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
1857 (*list) = this->next;
1858 /* Insert THIS at the front. */
1859 this->next = rego->arches;
1860 rego->arches = this;
1865 /* It's a new architecture. */
1867 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1868 "New architecture 0x%08lx (%s) selected\n",
1870 new_gdbarch->bfd_arch_info->printable_name);
1872 /* Insert the new architecture into the front of the architecture
1873 list (keep the list sorted Most Recently Used). */
1875 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
1876 this->next = rego->arches;
1877 this->gdbarch = new_gdbarch;
1878 rego->arches = this;
1881 /* Check that the newly installed architecture is valid. Plug in
1882 any post init values. */
1883 new_gdbarch->dump_tdep = rego->dump_tdep;
1884 verify_gdbarch (new_gdbarch);
1885 new_gdbarch->initialized_p = 1;
1888 gdbarch_dump (new_gdbarch, gdb_stdlog);
1894 gdbarch_find_by_info (struct gdbarch_info info)
1896 struct gdbarch *new_gdbarch;
1898 /* Save the previously selected architecture, setting the global to
1899 NULL. This stops things like gdbarch->init() trying to use the
1900 previous architecture's configuration. The previous architecture
1901 may not even be of the same architecture family. The most recent
1902 architecture of the same family is found at the head of the
1903 rego->arches list. */
1904 struct gdbarch *old_gdbarch = current_gdbarch;
1905 current_gdbarch = NULL;
1907 /* Find the specified architecture. */
1908 new_gdbarch = find_arch_by_info (info);
1910 /* Restore the existing architecture. */
1911 gdb_assert (current_gdbarch == NULL);
1912 current_gdbarch = old_gdbarch;
1917 /* Make the specified architecture current. */
1920 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
1922 gdb_assert (new_gdbarch != NULL);
1923 gdb_assert (current_gdbarch != NULL);
1924 gdb_assert (new_gdbarch->initialized_p);
1925 current_gdbarch = new_gdbarch;
1926 architecture_changed_event ();
1927 reinit_frame_cache ();
1930 extern void _initialize_gdbarch (void);
1933 _initialize_gdbarch (void)
1935 struct cmd_list_element *c;
1937 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
1938 Set architecture debugging."), _("\\
1939 Show architecture debugging."), _("\\
1940 When non-zero, architecture debugging is enabled."),
1943 &setdebuglist, &showdebuglist);
1949 #../move-if-change new-gdbarch.c gdbarch.c
1950 compare_new gdbarch.c