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, core_addr_to_string_nz (for CORE_ADDR)
322 # or plongest (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
342 i:int:byte_order_for_code:::BFD_ENDIAN_BIG
344 i:enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
346 i:const struct target_desc *:target_desc:::::::plongest ((long) gdbarch->target_desc)
348 # The bit byte-order has to do just with numbering of bits in debugging symbols
349 # and such. Conceptually, it's quite separate from byte/word byte order.
350 v:int:bits_big_endian:::1:(gdbarch->byte_order == BFD_ENDIAN_BIG)::0
352 # Number of bits in a char or unsigned char for the target machine.
353 # Just like CHAR_BIT in <limits.h> but describes the target machine.
354 # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
356 # Number of bits in a short or unsigned short for the target machine.
357 v:int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0
358 # Number of bits in an int or unsigned int for the target machine.
359 v:int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0
360 # Number of bits in a long or unsigned long for the target machine.
361 v:int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
362 # Number of bits in a long long or unsigned long long for the target
364 v:int:long_long_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
366 # The ABI default bit-size and format for "float", "double", and "long
367 # double". These bit/format pairs should eventually be combined into
368 # a single object. For the moment, just initialize them as a pair.
369 # Each format describes both the big and little endian layouts (if
372 v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
373 v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format)
374 v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
375 v:const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (gdbarch->double_format)
376 v:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
377 v:const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (gdbarch->long_double_format)
379 # For most targets, a pointer on the target and its representation as an
380 # address in GDB have the same size and "look the same". For such a
381 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
382 # / addr_bit will be set from it.
384 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
385 # also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
388 # ptr_bit is the size of a pointer on the target
389 v:int:ptr_bit:::8 * sizeof (void*):gdbarch->int_bit::0
390 # addr_bit is the size of a target address as represented in gdb
391 v:int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (gdbarch):
393 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
394 v:int:char_signed:::1:-1:1
396 F:CORE_ADDR:read_pc:struct regcache *regcache:regcache
397 F:void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
398 # Function for getting target's idea of a frame pointer. FIXME: GDB's
399 # whole scheme for dealing with "frames" and "frame pointers" needs a
401 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
403 M:void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
404 M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
406 v:int:num_regs:::0:-1
407 # This macro gives the number of pseudo-registers that live in the
408 # register namespace but do not get fetched or stored on the target.
409 # These pseudo-registers may be aliases for other registers,
410 # combinations of other registers, or they may be computed by GDB.
411 v:int:num_pseudo_regs:::0:0::0
413 # GDB's standard (or well known) register numbers. These can map onto
414 # a real register or a pseudo (computed) register or not be defined at
416 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
417 v:int:sp_regnum:::-1:-1::0
418 v:int:pc_regnum:::-1:-1::0
419 v:int:ps_regnum:::-1:-1::0
420 v:int:fp0_regnum:::0:-1::0
421 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
422 m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
423 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
424 m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
425 # Convert from an sdb register number to an internal gdb register number.
426 m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
427 # Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
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 M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
487 f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
488 m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
489 M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
490 m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
491 m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
492 v:CORE_ADDR:decr_pc_after_break:::0:::0
494 # A function can be addressed by either it's "pointer" (possibly a
495 # descriptor address) or "entry point" (first executable instruction).
496 # The method "convert_from_func_ptr_addr" converting the former to the
497 # latter. gdbarch_deprecated_function_start_offset is being used to implement
498 # a simplified subset of that functionality - the function's address
499 # corresponds to the "function pointer" and the function's start
500 # corresponds to the "function entry point" - and hence is redundant.
502 v:CORE_ADDR:deprecated_function_start_offset:::0:::0
504 # Return the remote protocol register number associated with this
505 # register. Normally the identity mapping.
506 m:int:remote_register_number:int regno:regno::default_remote_register_number::0
508 # Fetch the target specific address used to represent a load module.
509 F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
511 v:CORE_ADDR:frame_args_skip:::0:::0
512 M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
513 M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
514 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
515 # frame-base. Enable frame-base before frame-unwind.
516 F:int:frame_num_args:struct frame_info *frame:frame
518 M:CORE_ADDR:frame_align:CORE_ADDR address:address
519 m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
520 v:int:frame_red_zone_size
522 m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
523 # On some machines there are bits in addresses which are not really
524 # part of the address, but are used by the kernel, the hardware, etc.
525 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
526 # we get a "real" address such as one would find in a symbol table.
527 # This is used only for addresses of instructions, and even then I'm
528 # not sure it's used in all contexts. It exists to deal with there
529 # being a few stray bits in the PC which would mislead us, not as some
530 # sort of generic thing to handle alignment or segmentation (it's
531 # possible it should be in TARGET_READ_PC instead).
532 m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
533 # It is not at all clear why gdbarch_smash_text_address is not folded into
534 # gdbarch_addr_bits_remove.
535 m:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
537 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
538 # indicates if the target needs software single step. An ISA method to
541 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
542 # breakpoints using the breakpoint system instead of blatting memory directly
545 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
546 # target can single step. If not, then implement single step using breakpoints.
548 # A return value of 1 means that the software_single_step breakpoints
549 # were inserted; 0 means they were not.
550 F:int:software_single_step:struct frame_info *frame:frame
552 # Return non-zero if the processor is executing a delay slot and a
553 # further single-step is needed before the instruction finishes.
554 M:int:single_step_through_delay:struct frame_info *frame:frame
555 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
556 # disassembler. Perhaps objdump can handle it?
557 f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
558 f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
561 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
562 # evaluates non-zero, this is the address where the debugger will place
563 # a step-resume breakpoint to get us past the dynamic linker.
564 m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
565 # Some systems also have trampoline code for returning from shared libs.
566 f:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
568 # A target might have problems with watchpoints as soon as the stack
569 # frame of the current function has been destroyed. This mostly happens
570 # as the first action in a funtion's epilogue. in_function_epilogue_p()
571 # is defined to return a non-zero value if either the given addr is one
572 # instruction after the stack destroying instruction up to the trailing
573 # return instruction or if we can figure out that the stack frame has
574 # already been invalidated regardless of the value of addr. Targets
575 # which don't suffer from that problem could just let this functionality
577 m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
578 # Given a vector of command-line arguments, return a newly allocated
579 # string which, when passed to the create_inferior function, will be
580 # parsed (on Unix systems, by the shell) to yield the same vector.
581 # This function should call error() if the argument vector is not
582 # representable for this target or if this target does not support
583 # command-line arguments.
584 # ARGC is the number of elements in the vector.
585 # ARGV is an array of strings, one per argument.
586 m:char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0
587 f:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
588 f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
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 # Supported register notes in a core file.
604 v:struct core_regset_section *:core_regset_sections:const char *name, int len::::::host_address_to_string (gdbarch->core_regset_sections)
606 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
607 # core file into buffer READBUF with length LEN.
608 M:LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
610 # If the elements of C++ vtables are in-place function descriptors rather
611 # than normal function pointers (which may point to code or a descriptor),
613 v:int:vtable_function_descriptors:::0:0::0
615 # Set if the least significant bit of the delta is used instead of the least
616 # significant bit of the pfn for pointers to virtual member functions.
617 v:int:vbit_in_delta:::0:0::0
619 # Advance PC to next instruction in order to skip a permanent breakpoint.
620 F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache
622 # The maximum length of an instruction on this architecture.
623 V:ULONGEST:max_insn_length:::0:0
625 # Copy the instruction at FROM to TO, and make any adjustments
626 # necessary to single-step it at that address.
628 # REGS holds the state the thread's registers will have before
629 # executing the copied instruction; the PC in REGS will refer to FROM,
630 # not the copy at TO. The caller should update it to point at TO later.
632 # Return a pointer to data of the architecture's choice to be passed
633 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
634 # the instruction's effects have been completely simulated, with the
635 # resulting state written back to REGS.
637 # For a general explanation of displaced stepping and how GDB uses it,
638 # see the comments in infrun.c.
640 # The TO area is only guaranteed to have space for
641 # gdbarch_max_insn_length (arch) bytes, so this function must not
642 # write more bytes than that to that area.
644 # If you do not provide this function, GDB assumes that the
645 # architecture does not support displaced stepping.
647 # If your architecture doesn't need to adjust instructions before
648 # single-stepping them, consider using simple_displaced_step_copy_insn
650 M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
652 # Fix up the state resulting from successfully single-stepping a
653 # displaced instruction, to give the result we would have gotten from
654 # stepping the instruction in its original location.
656 # REGS is the register state resulting from single-stepping the
657 # displaced instruction.
659 # CLOSURE is the result from the matching call to
660 # gdbarch_displaced_step_copy_insn.
662 # If you provide gdbarch_displaced_step_copy_insn.but not this
663 # function, then GDB assumes that no fixup is needed after
664 # single-stepping the instruction.
666 # For a general explanation of displaced stepping and how GDB uses it,
667 # see the comments in infrun.c.
668 M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
670 # Free a closure returned by gdbarch_displaced_step_copy_insn.
672 # If you provide gdbarch_displaced_step_copy_insn, you must provide
673 # this function as well.
675 # If your architecture uses closures that don't need to be freed, then
676 # you can use simple_displaced_step_free_closure here.
678 # For a general explanation of displaced stepping and how GDB uses it,
679 # see the comments in infrun.c.
680 m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
682 # Return the address of an appropriate place to put displaced
683 # instructions while we step over them. There need only be one such
684 # place, since we're only stepping one thread over a breakpoint at a
687 # For a general explanation of displaced stepping and how GDB uses it,
688 # see the comments in infrun.c.
689 m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
691 # Refresh overlay mapped state for section OSECT.
692 F:void:overlay_update:struct obj_section *osect:osect
694 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
696 # Handle special encoding of static variables in stabs debug info.
697 F:char *:static_transform_name:char *name:name
698 # Set if the address in N_SO or N_FUN stabs may be zero.
699 v:int:sofun_address_maybe_missing:::0:0::0
701 # Signal translation: translate inferior's signal (host's) number into
702 # GDB's representation.
703 m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0
704 # Signal translation: translate GDB's signal number into inferior's host
706 m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0
708 # Record architecture-specific information from the symbol table.
709 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
716 exec > new-gdbarch.log
717 function_list | while do_read
720 ${class} ${returntype} ${function} ($formal)
724 eval echo \"\ \ \ \ ${r}=\${${r}}\"
726 if class_is_predicate_p && fallback_default_p
728 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
732 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
734 echo "Error: postdefault is useless when invalid_p=0" 1>&2
738 if class_is_multiarch_p
740 if class_is_predicate_p ; then :
741 elif test "x${predefault}" = "x"
743 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
752 compare_new gdbarch.log
758 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
760 /* Dynamic architecture support for GDB, the GNU debugger.
762 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
763 Free Software Foundation, Inc.
765 This file is part of GDB.
767 This program is free software; you can redistribute it and/or modify
768 it under the terms of the GNU General Public License as published by
769 the Free Software Foundation; either version 3 of the License, or
770 (at your option) any later version.
772 This program is distributed in the hope that it will be useful,
773 but WITHOUT ANY WARRANTY; without even the implied warranty of
774 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
775 GNU General Public License for more details.
777 You should have received a copy of the GNU General Public License
778 along with this program. If not, see <http://www.gnu.org/licenses/>. */
780 /* This file was created with the aid of \`\`gdbarch.sh''.
782 The Bourne shell script \`\`gdbarch.sh'' creates the files
783 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
784 against the existing \`\`gdbarch.[hc]''. Any differences found
787 If editing this file, please also run gdbarch.sh and merge any
788 changes into that script. Conversely, when making sweeping changes
789 to this file, modifying gdbarch.sh and using its output may prove
811 struct minimal_symbol;
815 struct disassemble_info;
818 struct bp_target_info;
820 struct displaced_step_closure;
821 struct core_regset_section;
823 extern struct gdbarch *current_gdbarch;
824 extern struct gdbarch *target_gdbarch;
830 printf "/* The following are pre-initialized by GDBARCH. */\n"
831 function_list | while do_read
836 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
837 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
844 printf "/* The following are initialized by the target dependent code. */\n"
845 function_list | while do_read
847 if [ -n "${comment}" ]
849 echo "${comment}" | sed \
855 if class_is_predicate_p
858 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
860 if class_is_variable_p
863 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
864 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
866 if class_is_function_p
869 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
871 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
872 elif class_is_multiarch_p
874 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
876 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
878 if [ "x${formal}" = "xvoid" ]
880 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
882 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
884 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
891 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
894 /* Mechanism for co-ordinating the selection of a specific
897 GDB targets (*-tdep.c) can register an interest in a specific
898 architecture. Other GDB components can register a need to maintain
899 per-architecture data.
901 The mechanisms below ensures that there is only a loose connection
902 between the set-architecture command and the various GDB
903 components. Each component can independently register their need
904 to maintain architecture specific data with gdbarch.
908 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
911 The more traditional mega-struct containing architecture specific
912 data for all the various GDB components was also considered. Since
913 GDB is built from a variable number of (fairly independent)
914 components it was determined that the global aproach was not
918 /* Register a new architectural family with GDB.
920 Register support for the specified ARCHITECTURE with GDB. When
921 gdbarch determines that the specified architecture has been
922 selected, the corresponding INIT function is called.
926 The INIT function takes two parameters: INFO which contains the
927 information available to gdbarch about the (possibly new)
928 architecture; ARCHES which is a list of the previously created
929 \`\`struct gdbarch'' for this architecture.
931 The INFO parameter is, as far as possible, be pre-initialized with
932 information obtained from INFO.ABFD or the global defaults.
934 The ARCHES parameter is a linked list (sorted most recently used)
935 of all the previously created architures for this architecture
936 family. The (possibly NULL) ARCHES->gdbarch can used to access
937 values from the previously selected architecture for this
938 architecture family. The global \`\`current_gdbarch'' shall not be
941 The INIT function shall return any of: NULL - indicating that it
942 doesn't recognize the selected architecture; an existing \`\`struct
943 gdbarch'' from the ARCHES list - indicating that the new
944 architecture is just a synonym for an earlier architecture (see
945 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
946 - that describes the selected architecture (see gdbarch_alloc()).
948 The DUMP_TDEP function shall print out all target specific values.
949 Care should be taken to ensure that the function works in both the
950 multi-arch and non- multi-arch cases. */
954 struct gdbarch *gdbarch;
955 struct gdbarch_list *next;
960 /* Use default: NULL (ZERO). */
961 const struct bfd_arch_info *bfd_arch_info;
963 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
966 int byte_order_for_code;
968 /* Use default: NULL (ZERO). */
971 /* Use default: NULL (ZERO). */
972 struct gdbarch_tdep_info *tdep_info;
974 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
975 enum gdb_osabi osabi;
977 /* Use default: NULL (ZERO). */
978 const struct target_desc *target_desc;
981 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
982 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
984 /* DEPRECATED - use gdbarch_register() */
985 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
987 extern void gdbarch_register (enum bfd_architecture architecture,
988 gdbarch_init_ftype *,
989 gdbarch_dump_tdep_ftype *);
992 /* Return a freshly allocated, NULL terminated, array of the valid
993 architecture names. Since architectures are registered during the
994 _initialize phase this function only returns useful information
995 once initialization has been completed. */
997 extern const char **gdbarch_printable_names (void);
1000 /* Helper function. Search the list of ARCHES for a GDBARCH that
1001 matches the information provided by INFO. */
1003 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1006 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1007 basic initialization using values obtained from the INFO and TDEP
1008 parameters. set_gdbarch_*() functions are called to complete the
1009 initialization of the object. */
1011 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1014 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1015 It is assumed that the caller freeds the \`\`struct
1018 extern void gdbarch_free (struct gdbarch *);
1021 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1022 obstack. The memory is freed when the corresponding architecture
1025 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1026 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1027 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1030 /* Helper function. Force an update of the current architecture.
1032 The actual architecture selected is determined by INFO, \`\`(gdb) set
1033 architecture'' et.al., the existing architecture and BFD's default
1034 architecture. INFO should be initialized to zero and then selected
1035 fields should be updated.
1037 Returns non-zero if the update succeeds */
1039 extern int gdbarch_update_p (struct gdbarch_info info);
1042 /* Helper function. Find an architecture matching info.
1044 INFO should be initialized using gdbarch_info_init, relevant fields
1045 set, and then finished using gdbarch_info_fill.
1047 Returns the corresponding architecture, or NULL if no matching
1048 architecture was found. "current_gdbarch" is not updated. */
1050 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1053 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
1055 FIXME: kettenis/20031124: Of the functions that follow, only
1056 gdbarch_from_bfd is supposed to survive. The others will
1057 dissappear since in the future GDB will (hopefully) be truly
1058 multi-arch. However, for now we're still stuck with the concept of
1059 a single active architecture. */
1061 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1064 /* Register per-architecture data-pointer.
1066 Reserve space for a per-architecture data-pointer. An identifier
1067 for the reserved data-pointer is returned. That identifer should
1068 be saved in a local static variable.
1070 Memory for the per-architecture data shall be allocated using
1071 gdbarch_obstack_zalloc. That memory will be deleted when the
1072 corresponding architecture object is deleted.
1074 When a previously created architecture is re-selected, the
1075 per-architecture data-pointer for that previous architecture is
1076 restored. INIT() is not re-called.
1078 Multiple registrarants for any architecture are allowed (and
1079 strongly encouraged). */
1081 struct gdbarch_data;
1083 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1084 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1085 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1086 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1087 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1088 struct gdbarch_data *data,
1091 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1094 /* Set the dynamic target-system-dependent parameters (architecture,
1095 byte-order, ...) using information found in the BFD */
1097 extern void set_gdbarch_from_file (bfd *);
1100 /* Initialize the current architecture to the "first" one we find on
1103 extern void initialize_current_architecture (void);
1105 /* gdbarch trace variable */
1106 extern int gdbarch_debug;
1108 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1113 #../move-if-change new-gdbarch.h gdbarch.h
1114 compare_new gdbarch.h
1121 exec > new-gdbarch.c
1126 #include "arch-utils.h"
1129 #include "inferior.h"
1132 #include "floatformat.h"
1134 #include "gdb_assert.h"
1135 #include "gdb_string.h"
1136 #include "reggroups.h"
1138 #include "gdb_obstack.h"
1139 #include "observer.h"
1140 #include "regcache.h"
1142 /* Static function declarations */
1144 static void alloc_gdbarch_data (struct gdbarch *);
1146 /* Non-zero if we want to trace architecture code. */
1148 #ifndef GDBARCH_DEBUG
1149 #define GDBARCH_DEBUG 0
1151 int gdbarch_debug = GDBARCH_DEBUG;
1153 show_gdbarch_debug (struct ui_file *file, int from_tty,
1154 struct cmd_list_element *c, const char *value)
1156 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1160 pformat (const struct floatformat **format)
1165 /* Just print out one of them - this is only for diagnostics. */
1166 return format[0]->name;
1171 # gdbarch open the gdbarch object
1173 printf "/* Maintain the struct gdbarch object */\n"
1175 printf "struct gdbarch\n"
1177 printf " /* Has this architecture been fully initialized? */\n"
1178 printf " int initialized_p;\n"
1180 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1181 printf " struct obstack *obstack;\n"
1183 printf " /* basic architectural information */\n"
1184 function_list | while do_read
1188 printf " ${returntype} ${function};\n"
1192 printf " /* target specific vector. */\n"
1193 printf " struct gdbarch_tdep *tdep;\n"
1194 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1196 printf " /* per-architecture data-pointers */\n"
1197 printf " unsigned nr_data;\n"
1198 printf " void **data;\n"
1200 printf " /* per-architecture swap-regions */\n"
1201 printf " struct gdbarch_swap *swap;\n"
1204 /* Multi-arch values.
1206 When extending this structure you must:
1208 Add the field below.
1210 Declare set/get functions and define the corresponding
1213 gdbarch_alloc(): If zero/NULL is not a suitable default,
1214 initialize the new field.
1216 verify_gdbarch(): Confirm that the target updated the field
1219 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1222 \`\`startup_gdbarch()'': Append an initial value to the static
1223 variable (base values on the host's c-type system).
1225 get_gdbarch(): Implement the set/get functions (probably using
1226 the macro's as shortcuts).
1231 function_list | while do_read
1233 if class_is_variable_p
1235 printf " ${returntype} ${function};\n"
1236 elif class_is_function_p
1238 printf " gdbarch_${function}_ftype *${function};\n"
1243 # A pre-initialized vector
1247 /* The default architecture uses host values (for want of a better
1251 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1253 printf "struct gdbarch startup_gdbarch =\n"
1255 printf " 1, /* Always initialized. */\n"
1256 printf " NULL, /* The obstack. */\n"
1257 printf " /* basic architecture information */\n"
1258 function_list | while do_read
1262 printf " ${staticdefault}, /* ${function} */\n"
1266 /* target specific vector and its dump routine */
1268 /*per-architecture data-pointers and swap regions */
1270 /* Multi-arch values */
1272 function_list | while do_read
1274 if class_is_function_p || class_is_variable_p
1276 printf " ${staticdefault}, /* ${function} */\n"
1280 /* startup_gdbarch() */
1283 struct gdbarch *current_gdbarch = &startup_gdbarch;
1284 struct gdbarch *target_gdbarch = &startup_gdbarch;
1287 # Create a new gdbarch struct
1290 /* Create a new \`\`struct gdbarch'' based on information provided by
1291 \`\`struct gdbarch_info''. */
1296 gdbarch_alloc (const struct gdbarch_info *info,
1297 struct gdbarch_tdep *tdep)
1299 struct gdbarch *gdbarch;
1301 /* Create an obstack for allocating all the per-architecture memory,
1302 then use that to allocate the architecture vector. */
1303 struct obstack *obstack = XMALLOC (struct obstack);
1304 obstack_init (obstack);
1305 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1306 memset (gdbarch, 0, sizeof (*gdbarch));
1307 gdbarch->obstack = obstack;
1309 alloc_gdbarch_data (gdbarch);
1311 gdbarch->tdep = tdep;
1314 function_list | while do_read
1318 printf " gdbarch->${function} = info->${function};\n"
1322 printf " /* Force the explicit initialization of these. */\n"
1323 function_list | while do_read
1325 if class_is_function_p || class_is_variable_p
1327 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1329 printf " gdbarch->${function} = ${predefault};\n"
1334 /* gdbarch_alloc() */
1340 # Free a gdbarch struct.
1344 /* Allocate extra space using the per-architecture obstack. */
1347 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1349 void *data = obstack_alloc (arch->obstack, size);
1350 memset (data, 0, size);
1355 /* Free a gdbarch struct. This should never happen in normal
1356 operation --- once you've created a gdbarch, you keep it around.
1357 However, if an architecture's init function encounters an error
1358 building the structure, it may need to clean up a partially
1359 constructed gdbarch. */
1362 gdbarch_free (struct gdbarch *arch)
1364 struct obstack *obstack;
1365 gdb_assert (arch != NULL);
1366 gdb_assert (!arch->initialized_p);
1367 obstack = arch->obstack;
1368 obstack_free (obstack, 0); /* Includes the ARCH. */
1373 # verify a new architecture
1377 /* Ensure that all values in a GDBARCH are reasonable. */
1380 verify_gdbarch (struct gdbarch *gdbarch)
1382 struct ui_file *log;
1383 struct cleanup *cleanups;
1386 log = mem_fileopen ();
1387 cleanups = make_cleanup_ui_file_delete (log);
1389 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1390 fprintf_unfiltered (log, "\n\tbyte-order");
1391 if (gdbarch->bfd_arch_info == NULL)
1392 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1393 /* Check those that need to be defined for the given multi-arch level. */
1395 function_list | while do_read
1397 if class_is_function_p || class_is_variable_p
1399 if [ "x${invalid_p}" = "x0" ]
1401 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1402 elif class_is_predicate_p
1404 printf " /* Skip verify of ${function}, has predicate */\n"
1405 # FIXME: See do_read for potential simplification
1406 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1408 printf " if (${invalid_p})\n"
1409 printf " gdbarch->${function} = ${postdefault};\n"
1410 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1412 printf " if (gdbarch->${function} == ${predefault})\n"
1413 printf " gdbarch->${function} = ${postdefault};\n"
1414 elif [ -n "${postdefault}" ]
1416 printf " if (gdbarch->${function} == 0)\n"
1417 printf " gdbarch->${function} = ${postdefault};\n"
1418 elif [ -n "${invalid_p}" ]
1420 printf " if (${invalid_p})\n"
1421 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1422 elif [ -n "${predefault}" ]
1424 printf " if (gdbarch->${function} == ${predefault})\n"
1425 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1430 buf = ui_file_xstrdup (log, &dummy);
1431 make_cleanup (xfree, buf);
1432 if (strlen (buf) > 0)
1433 internal_error (__FILE__, __LINE__,
1434 _("verify_gdbarch: the following are invalid ...%s"),
1436 do_cleanups (cleanups);
1440 # dump the structure
1444 /* Print out the details of the current architecture. */
1447 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1449 const char *gdb_nm_file = "<not-defined>";
1450 #if defined (GDB_NM_FILE)
1451 gdb_nm_file = GDB_NM_FILE;
1453 fprintf_unfiltered (file,
1454 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1457 function_list | sort -t: -k 3 | while do_read
1459 # First the predicate
1460 if class_is_predicate_p
1462 printf " fprintf_unfiltered (file,\n"
1463 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1464 printf " gdbarch_${function}_p (gdbarch));\n"
1466 # Print the corresponding value.
1467 if class_is_function_p
1469 printf " fprintf_unfiltered (file,\n"
1470 printf " \"gdbarch_dump: ${function} = <0x%%lx>\\\\n\",\n"
1471 printf " (long) gdbarch->${function});\n"
1474 case "${print}:${returntype}" in
1477 print="core_addr_to_string_nz (gdbarch->${function})"
1481 print="plongest (gdbarch->${function})"
1487 printf " fprintf_unfiltered (file,\n"
1488 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1489 printf " ${print});\n"
1493 if (gdbarch->dump_tdep != NULL)
1494 gdbarch->dump_tdep (gdbarch, file);
1502 struct gdbarch_tdep *
1503 gdbarch_tdep (struct gdbarch *gdbarch)
1505 if (gdbarch_debug >= 2)
1506 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1507 return gdbarch->tdep;
1511 function_list | while do_read
1513 if class_is_predicate_p
1517 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1519 printf " gdb_assert (gdbarch != NULL);\n"
1520 printf " return ${predicate};\n"
1523 if class_is_function_p
1526 printf "${returntype}\n"
1527 if [ "x${formal}" = "xvoid" ]
1529 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1531 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1534 printf " gdb_assert (gdbarch != NULL);\n"
1535 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1536 if class_is_predicate_p && test -n "${predefault}"
1538 # Allow a call to a function with a predicate.
1539 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1541 printf " if (gdbarch_debug >= 2)\n"
1542 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1543 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1545 if class_is_multiarch_p
1552 if class_is_multiarch_p
1554 params="gdbarch, ${actual}"
1559 if [ "x${returntype}" = "xvoid" ]
1561 printf " gdbarch->${function} (${params});\n"
1563 printf " return gdbarch->${function} (${params});\n"
1568 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1569 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1571 printf " gdbarch->${function} = ${function};\n"
1573 elif class_is_variable_p
1576 printf "${returntype}\n"
1577 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1579 printf " gdb_assert (gdbarch != NULL);\n"
1580 if [ "x${invalid_p}" = "x0" ]
1582 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1583 elif [ -n "${invalid_p}" ]
1585 printf " /* Check variable is valid. */\n"
1586 printf " gdb_assert (!(${invalid_p}));\n"
1587 elif [ -n "${predefault}" ]
1589 printf " /* Check variable changed from pre-default. */\n"
1590 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1592 printf " if (gdbarch_debug >= 2)\n"
1593 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1594 printf " return gdbarch->${function};\n"
1598 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1599 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1601 printf " gdbarch->${function} = ${function};\n"
1603 elif class_is_info_p
1606 printf "${returntype}\n"
1607 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1609 printf " gdb_assert (gdbarch != NULL);\n"
1610 printf " if (gdbarch_debug >= 2)\n"
1611 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1612 printf " return gdbarch->${function};\n"
1617 # All the trailing guff
1621 /* Keep a registry of per-architecture data-pointers required by GDB
1628 gdbarch_data_pre_init_ftype *pre_init;
1629 gdbarch_data_post_init_ftype *post_init;
1632 struct gdbarch_data_registration
1634 struct gdbarch_data *data;
1635 struct gdbarch_data_registration *next;
1638 struct gdbarch_data_registry
1641 struct gdbarch_data_registration *registrations;
1644 struct gdbarch_data_registry gdbarch_data_registry =
1649 static struct gdbarch_data *
1650 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1651 gdbarch_data_post_init_ftype *post_init)
1653 struct gdbarch_data_registration **curr;
1654 /* Append the new registraration. */
1655 for (curr = &gdbarch_data_registry.registrations;
1657 curr = &(*curr)->next);
1658 (*curr) = XMALLOC (struct gdbarch_data_registration);
1659 (*curr)->next = NULL;
1660 (*curr)->data = XMALLOC (struct gdbarch_data);
1661 (*curr)->data->index = gdbarch_data_registry.nr++;
1662 (*curr)->data->pre_init = pre_init;
1663 (*curr)->data->post_init = post_init;
1664 (*curr)->data->init_p = 1;
1665 return (*curr)->data;
1668 struct gdbarch_data *
1669 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1671 return gdbarch_data_register (pre_init, NULL);
1674 struct gdbarch_data *
1675 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1677 return gdbarch_data_register (NULL, post_init);
1680 /* Create/delete the gdbarch data vector. */
1683 alloc_gdbarch_data (struct gdbarch *gdbarch)
1685 gdb_assert (gdbarch->data == NULL);
1686 gdbarch->nr_data = gdbarch_data_registry.nr;
1687 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1690 /* Initialize the current value of the specified per-architecture
1694 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1695 struct gdbarch_data *data,
1698 gdb_assert (data->index < gdbarch->nr_data);
1699 gdb_assert (gdbarch->data[data->index] == NULL);
1700 gdb_assert (data->pre_init == NULL);
1701 gdbarch->data[data->index] = pointer;
1704 /* Return the current value of the specified per-architecture
1708 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1710 gdb_assert (data->index < gdbarch->nr_data);
1711 if (gdbarch->data[data->index] == NULL)
1713 /* The data-pointer isn't initialized, call init() to get a
1715 if (data->pre_init != NULL)
1716 /* Mid architecture creation: pass just the obstack, and not
1717 the entire architecture, as that way it isn't possible for
1718 pre-init code to refer to undefined architecture
1720 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1721 else if (gdbarch->initialized_p
1722 && data->post_init != NULL)
1723 /* Post architecture creation: pass the entire architecture
1724 (as all fields are valid), but be careful to also detect
1725 recursive references. */
1727 gdb_assert (data->init_p);
1729 gdbarch->data[data->index] = data->post_init (gdbarch);
1733 /* The architecture initialization hasn't completed - punt -
1734 hope that the caller knows what they are doing. Once
1735 deprecated_set_gdbarch_data has been initialized, this can be
1736 changed to an internal error. */
1738 gdb_assert (gdbarch->data[data->index] != NULL);
1740 return gdbarch->data[data->index];
1744 /* Keep a registry of the architectures known by GDB. */
1746 struct gdbarch_registration
1748 enum bfd_architecture bfd_architecture;
1749 gdbarch_init_ftype *init;
1750 gdbarch_dump_tdep_ftype *dump_tdep;
1751 struct gdbarch_list *arches;
1752 struct gdbarch_registration *next;
1755 static struct gdbarch_registration *gdbarch_registry = NULL;
1758 append_name (const char ***buf, int *nr, const char *name)
1760 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1766 gdbarch_printable_names (void)
1768 /* Accumulate a list of names based on the registed list of
1770 enum bfd_architecture a;
1772 const char **arches = NULL;
1773 struct gdbarch_registration *rego;
1774 for (rego = gdbarch_registry;
1778 const struct bfd_arch_info *ap;
1779 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1781 internal_error (__FILE__, __LINE__,
1782 _("gdbarch_architecture_names: multi-arch unknown"));
1785 append_name (&arches, &nr_arches, ap->printable_name);
1790 append_name (&arches, &nr_arches, NULL);
1796 gdbarch_register (enum bfd_architecture bfd_architecture,
1797 gdbarch_init_ftype *init,
1798 gdbarch_dump_tdep_ftype *dump_tdep)
1800 struct gdbarch_registration **curr;
1801 const struct bfd_arch_info *bfd_arch_info;
1802 /* Check that BFD recognizes this architecture */
1803 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1804 if (bfd_arch_info == NULL)
1806 internal_error (__FILE__, __LINE__,
1807 _("gdbarch: Attempt to register unknown architecture (%d)"),
1810 /* Check that we haven't seen this architecture before */
1811 for (curr = &gdbarch_registry;
1813 curr = &(*curr)->next)
1815 if (bfd_architecture == (*curr)->bfd_architecture)
1816 internal_error (__FILE__, __LINE__,
1817 _("gdbarch: Duplicate registraration of architecture (%s)"),
1818 bfd_arch_info->printable_name);
1822 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1823 bfd_arch_info->printable_name,
1826 (*curr) = XMALLOC (struct gdbarch_registration);
1827 (*curr)->bfd_architecture = bfd_architecture;
1828 (*curr)->init = init;
1829 (*curr)->dump_tdep = dump_tdep;
1830 (*curr)->arches = NULL;
1831 (*curr)->next = NULL;
1835 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1836 gdbarch_init_ftype *init)
1838 gdbarch_register (bfd_architecture, init, NULL);
1842 /* Look for an architecture using gdbarch_info. */
1844 struct gdbarch_list *
1845 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1846 const struct gdbarch_info *info)
1848 for (; arches != NULL; arches = arches->next)
1850 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1852 if (info->byte_order != arches->gdbarch->byte_order)
1854 if (info->osabi != arches->gdbarch->osabi)
1856 if (info->target_desc != arches->gdbarch->target_desc)
1864 /* Find an architecture that matches the specified INFO. Create a new
1865 architecture if needed. Return that new architecture. Assumes
1866 that there is no current architecture. */
1868 static struct gdbarch *
1869 find_arch_by_info (struct gdbarch_info info)
1871 struct gdbarch *new_gdbarch;
1872 struct gdbarch_registration *rego;
1874 /* The existing architecture has been swapped out - all this code
1875 works from a clean slate. */
1876 gdb_assert (current_gdbarch == NULL);
1878 /* Fill in missing parts of the INFO struct using a number of
1879 sources: "set ..."; INFOabfd supplied; and the global
1881 gdbarch_info_fill (&info);
1883 /* Must have found some sort of architecture. */
1884 gdb_assert (info.bfd_arch_info != NULL);
1888 fprintf_unfiltered (gdb_stdlog,
1889 "find_arch_by_info: info.bfd_arch_info %s\n",
1890 (info.bfd_arch_info != NULL
1891 ? info.bfd_arch_info->printable_name
1893 fprintf_unfiltered (gdb_stdlog,
1894 "find_arch_by_info: info.byte_order %d (%s)\n",
1896 (info.byte_order == BFD_ENDIAN_BIG ? "big"
1897 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
1899 fprintf_unfiltered (gdb_stdlog,
1900 "find_arch_by_info: info.osabi %d (%s)\n",
1901 info.osabi, gdbarch_osabi_name (info.osabi));
1902 fprintf_unfiltered (gdb_stdlog,
1903 "find_arch_by_info: info.abfd 0x%lx\n",
1905 fprintf_unfiltered (gdb_stdlog,
1906 "find_arch_by_info: info.tdep_info 0x%lx\n",
1907 (long) info.tdep_info);
1910 /* Find the tdep code that knows about this architecture. */
1911 for (rego = gdbarch_registry;
1914 if (rego->bfd_architecture == info.bfd_arch_info->arch)
1919 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1920 "No matching architecture\n");
1924 /* Ask the tdep code for an architecture that matches "info". */
1925 new_gdbarch = rego->init (info, rego->arches);
1927 /* Did the tdep code like it? No. Reject the change and revert to
1928 the old architecture. */
1929 if (new_gdbarch == NULL)
1932 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1933 "Target rejected architecture\n");
1937 /* Is this a pre-existing architecture (as determined by already
1938 being initialized)? Move it to the front of the architecture
1939 list (keeping the list sorted Most Recently Used). */
1940 if (new_gdbarch->initialized_p)
1942 struct gdbarch_list **list;
1943 struct gdbarch_list *this;
1945 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1946 "Previous architecture 0x%08lx (%s) selected\n",
1948 new_gdbarch->bfd_arch_info->printable_name);
1949 /* Find the existing arch in the list. */
1950 for (list = ®o->arches;
1951 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
1952 list = &(*list)->next);
1953 /* It had better be in the list of architectures. */
1954 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
1957 (*list) = this->next;
1958 /* Insert THIS at the front. */
1959 this->next = rego->arches;
1960 rego->arches = this;
1965 /* It's a new architecture. */
1967 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1968 "New architecture 0x%08lx (%s) selected\n",
1970 new_gdbarch->bfd_arch_info->printable_name);
1972 /* Insert the new architecture into the front of the architecture
1973 list (keep the list sorted Most Recently Used). */
1975 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
1976 this->next = rego->arches;
1977 this->gdbarch = new_gdbarch;
1978 rego->arches = this;
1981 /* Check that the newly installed architecture is valid. Plug in
1982 any post init values. */
1983 new_gdbarch->dump_tdep = rego->dump_tdep;
1984 verify_gdbarch (new_gdbarch);
1985 new_gdbarch->initialized_p = 1;
1988 gdbarch_dump (new_gdbarch, gdb_stdlog);
1994 gdbarch_find_by_info (struct gdbarch_info info)
1996 struct gdbarch *new_gdbarch;
1998 /* Save the previously selected architecture, setting the global to
1999 NULL. This stops things like gdbarch->init() trying to use the
2000 previous architecture's configuration. The previous architecture
2001 may not even be of the same architecture family. The most recent
2002 architecture of the same family is found at the head of the
2003 rego->arches list. */
2004 struct gdbarch *old_gdbarch = current_gdbarch;
2005 current_gdbarch = NULL;
2007 /* Find the specified architecture. */
2008 new_gdbarch = find_arch_by_info (info);
2010 /* Restore the existing architecture. */
2011 gdb_assert (current_gdbarch == NULL);
2012 current_gdbarch = old_gdbarch;
2017 /* Make the specified architecture current. */
2020 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2022 gdb_assert (new_gdbarch != NULL);
2023 gdb_assert (current_gdbarch != NULL);
2024 gdb_assert (new_gdbarch->initialized_p);
2025 current_gdbarch = new_gdbarch;
2026 target_gdbarch = new_gdbarch;
2027 observer_notify_architecture_changed (new_gdbarch);
2028 registers_changed ();
2031 extern void _initialize_gdbarch (void);
2034 _initialize_gdbarch (void)
2036 struct cmd_list_element *c;
2038 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2039 Set architecture debugging."), _("\\
2040 Show architecture debugging."), _("\\
2041 When non-zero, architecture debugging is enabled."),
2044 &setdebuglist, &showdebuglist);
2050 #../move-if-change new-gdbarch.c gdbarch.c
2051 compare_new gdbarch.c