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} ${file}" 1>&2
44 # Format of the input table
45 read="class macro returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol"
53 if test "${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}}\" = \"\
\"
93 FUNCTION
=`echo ${function} | tr '[a-z]' '[A-Z]'`
94 if test "x${macro}" = "x="
96 # Provide a UCASE version of function (for when there isn't MACRO)
98 elif test "${macro}" = "${FUNCTION}"
100 echo "${function}: Specify = for macro field" 1>&2
105 # Check that macro definition wasn't supplied for multi-arch
108 if test "${macro}" != ""
110 echo "Error: Function ${function} multi-arch yet macro ${macro} supplied" 1>&2
117 m
) staticdefault
="${predefault}" ;;
118 M
) staticdefault
="0" ;;
119 * ) test "${staticdefault}" || staticdefault
=0 ;;
124 case "${invalid_p}" in
126 if test -n "${predefault}"
128 #invalid_p="gdbarch->${function} == ${predefault}"
129 predicate
="gdbarch->${function} != ${predefault}"
130 elif class_is_variable_p
132 predicate
="gdbarch->${function} != 0"
133 elif class_is_function_p
135 predicate
="gdbarch->${function} != NULL"
139 echo "Predicate function ${function} with invalid_p." 1>&2
146 # PREDEFAULT is a valid fallback definition of MEMBER when
147 # multi-arch is not enabled. This ensures that the
148 # default value, when multi-arch is the same as the
149 # default value when not multi-arch. POSTDEFAULT is
150 # always a valid definition of MEMBER as this again
151 # ensures consistency.
153 if [ -n "${postdefault}" ]
155 fallbackdefault
="${postdefault}"
156 elif [ -n "${predefault}" ]
158 fallbackdefault
="${predefault}"
163 #NOT YET: See gdbarch.log for basic verification of
178 fallback_default_p
()
180 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
181 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
184 class_is_variable_p
()
192 class_is_function_p
()
195 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
200 class_is_multiarch_p
()
208 class_is_predicate_p
()
211 *F
* |
*V
* |
*M
* ) true
;;
225 # dump out/verify the doco
235 # F -> function + predicate
236 # hiding a function + predicate to test function validity
239 # V -> variable + predicate
240 # hiding a variable + predicate to test variables validity
242 # hiding something from the ``struct info'' object
243 # m -> multi-arch function
244 # hiding a multi-arch function (parameterised with the architecture)
245 # M -> multi-arch function + predicate
246 # hiding a multi-arch function + predicate to test function validity
250 # The name of the legacy C macro by which this method can be
251 # accessed. If empty, no macro is defined. If "=", a macro
252 # formed from the upper-case function name is used.
256 # For functions, the return type; for variables, the data type
260 # For functions, the member function name; for variables, the
261 # variable name. Member function names are always prefixed with
262 # ``gdbarch_'' for name-space purity.
266 # The formal argument list. It is assumed that the formal
267 # argument list includes the actual name of each list element.
268 # A function with no arguments shall have ``void'' as the
269 # formal argument list.
273 # The list of actual arguments. The arguments specified shall
274 # match the FORMAL list given above. Functions with out
275 # arguments leave this blank.
279 # To help with the GDB startup a static gdbarch object is
280 # created. STATICDEFAULT is the value to insert into that
281 # static gdbarch object. Since this a static object only
282 # simple expressions can be used.
284 # If STATICDEFAULT is empty, zero is used.
288 # An initial value to assign to MEMBER of the freshly
289 # malloc()ed gdbarch object. After initialization, the
290 # freshly malloc()ed object is passed to the target
291 # architecture code for further updates.
293 # If PREDEFAULT is empty, zero is used.
295 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
296 # INVALID_P are specified, PREDEFAULT will be used as the
297 # default for the non- multi-arch target.
299 # A zero PREDEFAULT function will force the fallback to call
302 # Variable declarations can refer to ``gdbarch'' which will
303 # contain the current architecture. Care should be taken.
307 # A value to assign to MEMBER of the new gdbarch object should
308 # the target architecture code fail to change the PREDEFAULT
311 # If POSTDEFAULT is empty, no post update is performed.
313 # If both INVALID_P and POSTDEFAULT are non-empty then
314 # INVALID_P will be used to determine if MEMBER should be
315 # changed to POSTDEFAULT.
317 # If a non-empty POSTDEFAULT and a zero INVALID_P are
318 # specified, POSTDEFAULT will be used as the default for the
319 # non- multi-arch target (regardless of the value of
322 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
324 # Variable declarations can refer to ``current_gdbarch'' which
325 # will contain the current architecture. Care should be
330 # A predicate equation that validates MEMBER. Non-zero is
331 # returned if the code creating the new architecture failed to
332 # initialize MEMBER or the initialized the member is invalid.
333 # If POSTDEFAULT is non-empty then MEMBER will be updated to
334 # that value. If POSTDEFAULT is empty then internal_error()
337 # If INVALID_P is empty, a check that MEMBER is no longer
338 # equal to PREDEFAULT is used.
340 # The expression ``0'' disables the INVALID_P check making
341 # PREDEFAULT a legitimate value.
343 # See also PREDEFAULT and POSTDEFAULT.
347 # An optional expression that convers MEMBER to a value
348 # suitable for formatting using %s.
350 # If PRINT is empty, paddr_nz (for CORE_ADDR) or paddr_d
351 # (anything else) is used.
353 garbage_at_eol
) : ;;
355 # Catches stray fields.
358 echo "Bad field ${field}"
366 # See below (DOCO) for description of each field
368 i::const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (current_gdbarch)->printable_name
370 i::int:byte_order:::BFD_ENDIAN_BIG
372 i::enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
374 i::const struct target_desc *:target_desc:::::::paddr_d ((long) current_gdbarch->target_desc)
375 # Number of bits in a char or unsigned char for the target machine.
376 # Just like CHAR_BIT in <limits.h> but describes the target machine.
377 # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
379 # Number of bits in a short or unsigned short for the target machine.
380 v::int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0
381 # Number of bits in an int or unsigned int for the target machine.
382 v::int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0
383 # Number of bits in a long or unsigned long for the target machine.
384 v::int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
385 # Number of bits in a long long or unsigned long long for the target
387 v::int:long_long_bit:::8 * sizeof (LONGEST):2*current_gdbarch->long_bit::0
389 # The ABI default bit-size and format for "float", "double", and "long
390 # double". These bit/format pairs should eventually be combined into
391 # a single object. For the moment, just initialize them as a pair.
392 # Each format describes both the big and little endian layouts (if
395 v::int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
396 v::const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (current_gdbarch->float_format)
397 v::int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
398 v::const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (current_gdbarch->double_format)
399 v::int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
400 v::const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (current_gdbarch->long_double_format)
402 # For most targets, a pointer on the target and its representation as an
403 # address in GDB have the same size and "look the same". For such a
404 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
405 # / addr_bit will be set from it.
407 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
408 # also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
411 # ptr_bit is the size of a pointer on the target
412 v::int:ptr_bit:::8 * sizeof (void*):current_gdbarch->int_bit::0
413 # addr_bit is the size of a target address as represented in gdb
414 v::int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (current_gdbarch):
416 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
417 v::int:char_signed:::1:-1:1
419 F::CORE_ADDR:read_pc:struct regcache *regcache:regcache
420 F::void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
421 # Function for getting target's idea of a frame pointer. FIXME: GDB's
422 # whole scheme for dealing with "frames" and "frame pointers" needs a
424 f::void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset:0:legacy_virtual_frame_pointer::0
426 M::void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
427 M::void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
429 v::int:num_regs:::0:-1
430 # This macro gives the number of pseudo-registers that live in the
431 # register namespace but do not get fetched or stored on the target.
432 # These pseudo-registers may be aliases for other registers,
433 # combinations of other registers, or they may be computed by GDB.
434 v::int:num_pseudo_regs:::0:0::0
436 # GDB's standard (or well known) register numbers. These can map onto
437 # a real register or a pseudo (computed) register or not be defined at
439 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
440 v::int:sp_regnum:::-1:-1::0
441 v::int:pc_regnum:::-1:-1::0
442 v::int:ps_regnum:::-1:-1::0
443 v::int:fp0_regnum:::0:-1::0
444 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
445 f::int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
446 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
447 f::int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
448 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
449 f::int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr::no_op_reg_to_regnum::0
450 # Convert from an sdb register number to an internal gdb register number.
451 f::int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
452 f::int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
453 f::const char *:register_name:int regnr:regnr
455 # Return the type of a register specified by the architecture. Only
456 # the register cache should call this function directly; others should
457 # use "register_type".
458 M::struct type *:register_type:int reg_nr:reg_nr
460 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
461 M::struct frame_id:unwind_dummy_id:struct frame_info *info:info
462 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
463 # deprecated_fp_regnum.
464 v::int:deprecated_fp_regnum:::-1:-1::0
466 # See gdbint.texinfo. See infcall.c.
467 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
468 v::int:call_dummy_location::::AT_ENTRY_POINT::0
469 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
471 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
472 M::void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
473 M::void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
474 # MAP a GDB RAW register number onto a simulator register number. See
475 # also include/...-sim.h.
476 f::int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
477 f::int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
478 f::int:cannot_store_register:int regnum:regnum::cannot_register_not::0
479 # setjmp/longjmp support.
480 F::int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
482 v::int:believe_pcc_promotion:::::::
484 f::int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
485 f::void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0
486 f::void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
487 # Construct a value representing the contents of register REGNUM in
488 # frame FRAME, interpreted as type TYPE. The routine needs to
489 # allocate and return a struct value with all value attributes
490 # (but not the value contents) filled in.
491 f::struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
493 f::CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
494 f::void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
495 M::CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
497 # It has been suggested that this, well actually its predecessor,
498 # should take the type/value of the function to be called and not the
499 # return type. This is left as an exercise for the reader.
501 M::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:valtype, regcache, readbuf, writebuf
503 f::CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
504 f::int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
505 f::const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
506 M::CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
507 f::int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
508 f::int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
509 v::CORE_ADDR:decr_pc_after_break:::0:::0
511 # A function can be addressed by either it's "pointer" (possibly a
512 # descriptor address) or "entry point" (first executable instruction).
513 # The method "convert_from_func_ptr_addr" converting the former to the
514 # latter. gdbarch_deprecated_function_start_offset is being used to implement
515 # a simplified subset of that functionality - the function's address
516 # corresponds to the "function pointer" and the function's start
517 # corresponds to the "function entry point" - and hence is redundant.
519 v::CORE_ADDR:deprecated_function_start_offset:::0:::0
521 # Return the remote protocol register number associated with this
522 # register. Normally the identity mapping.
523 m::int:remote_register_number:int regno:regno::default_remote_register_number::0
525 # Fetch the target specific address used to represent a load module.
526 F::CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
528 v::CORE_ADDR:frame_args_skip:::0:::0
529 M::CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
530 M::CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
531 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
532 # frame-base. Enable frame-base before frame-unwind.
533 F::int:frame_num_args:struct frame_info *frame:frame
535 M::CORE_ADDR:frame_align:CORE_ADDR address:address
536 m::int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
537 v::int:frame_red_zone_size
539 m::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
540 # On some machines there are bits in addresses which are not really
541 # part of the address, but are used by the kernel, the hardware, etc.
542 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
543 # we get a "real" address such as one would find in a symbol table.
544 # This is used only for addresses of instructions, and even then I'm
545 # not sure it's used in all contexts. It exists to deal with there
546 # being a few stray bits in the PC which would mislead us, not as some
547 # sort of generic thing to handle alignment or segmentation (it's
548 # possible it should be in TARGET_READ_PC instead).
549 f::CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
550 # It is not at all clear why gdbarch_smash_text_address is not folded into
551 # gdbarch_addr_bits_remove.
552 f::CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
554 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
555 # indicates if the target needs software single step. An ISA method to
558 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
559 # breakpoints using the breakpoint system instead of blatting memory directly
562 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
563 # target can single step. If not, then implement single step using breakpoints.
565 # A return value of 1 means that the software_single_step breakpoints
566 # were inserted; 0 means they were not.
567 F::int:software_single_step:struct frame_info *frame:frame
569 # Return non-zero if the processor is executing a delay slot and a
570 # further single-step is needed before the instruction finishes.
571 M::int:single_step_through_delay:struct frame_info *frame:frame
572 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
573 # disassembler. Perhaps objdump can handle it?
574 f::int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
575 f::CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
578 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
579 # evaluates non-zero, this is the address where the debugger will place
580 # a step-resume breakpoint to get us past the dynamic linker.
581 m::CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
582 # Some systems also have trampoline code for returning from shared libs.
583 f::int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
585 # A target might have problems with watchpoints as soon as the stack
586 # frame of the current function has been destroyed. This mostly happens
587 # as the first action in a funtion's epilogue. in_function_epilogue_p()
588 # is defined to return a non-zero value if either the given addr is one
589 # instruction after the stack destroying instruction up to the trailing
590 # return instruction or if we can figure out that the stack frame has
591 # already been invalidated regardless of the value of addr. Targets
592 # which don't suffer from that problem could just let this functionality
594 m::int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
595 # Given a vector of command-line arguments, return a newly allocated
596 # string which, when passed to the create_inferior function, will be
597 # parsed (on Unix systems, by the shell) to yield the same vector.
598 # This function should call error() if the argument vector is not
599 # representable for this target or if this target does not support
600 # command-line arguments.
601 # ARGC is the number of elements in the vector.
602 # ARGV is an array of strings, one per argument.
603 m::char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0
604 f::void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
605 f::void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
606 v::const char *:name_of_malloc:::"malloc":"malloc"::0:current_gdbarch->name_of_malloc
607 v::int:cannot_step_breakpoint:::0:0::0
608 v::int:have_nonsteppable_watchpoint:::0:0::0
609 F::int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
610 M::const char *:address_class_type_flags_to_name:int type_flags:type_flags
611 M::int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
612 # Is a register in a group
613 m::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
614 # Fetch the pointer to the ith function argument.
615 F::CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
617 # Return the appropriate register set for a core file section with
618 # name SECT_NAME and size SECT_SIZE.
619 M::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
621 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
622 # core file into buffer READBUF with length LEN.
623 M::LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
625 # If the elements of C++ vtables are in-place function descriptors rather
626 # than normal function pointers (which may point to code or a descriptor),
628 v::int:vtable_function_descriptors:::0:0::0
630 # Set if the least significant bit of the delta is used instead of the least
631 # significant bit of the pfn for pointers to virtual member functions.
632 v::int:vbit_in_delta:::0:0::0
634 # Advance PC to next instruction in order to skip a permanent breakpoint.
635 F::void:skip_permanent_breakpoint:struct regcache *regcache:regcache
637 # Refresh overlay mapped state for section OSECT.
638 F::void:overlay_update:struct obj_section *osect:osect
640 M::const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
642 # Handle special encoding of static variables in stabs debug info.
643 F::char *:static_transform_name:char *name:name
644 # Set if the address in N_SO or N_FUN stabs may be zero.
645 v::int:sofun_address_maybe_missing:::0:0::0
652 exec > new-gdbarch.log
653 function_list |
while do_read
656 ${class} ${returntype} ${function} ($formal)
660 eval echo \"\ \ \ \
${r}=\
${${r}}\"
662 if class_is_predicate_p
&& fallback_default_p
664 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
668 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
670 echo "Error: postdefault is useless when invalid_p=0" 1>&2
674 if class_is_multiarch_p
676 if class_is_predicate_p
; then :
677 elif test "x${predefault}" = "x"
679 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
688 compare_new gdbarch.log
694 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
696 /* Dynamic architecture support for GDB, the GNU debugger.
698 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
699 Free Software Foundation, Inc.
701 This file is part of GDB.
703 This program is free software; you can redistribute it and/or modify
704 it under the terms of the GNU General Public License as published by
705 the Free Software Foundation; either version 3 of the License, or
706 (at your option) any later version.
708 This program is distributed in the hope that it will be useful,
709 but WITHOUT ANY WARRANTY; without even the implied warranty of
710 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
711 GNU General Public License for more details.
713 You should have received a copy of the GNU General Public License
714 along with this program. If not, see <http://www.gnu.org/licenses/>. */
716 /* This file was created with the aid of \`\`gdbarch.sh''.
718 The Bourne shell script \`\`gdbarch.sh'' creates the files
719 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
720 against the existing \`\`gdbarch.[hc]''. Any differences found
723 If editing this file, please also run gdbarch.sh and merge any
724 changes into that script. Conversely, when making sweeping changes
725 to this file, modifying gdbarch.sh and using its output may prove
747 struct minimal_symbol;
751 struct disassemble_info;
754 struct bp_target_info;
757 extern struct gdbarch *current_gdbarch;
763 printf "/* The following are pre-initialized by GDBARCH. */\n"
764 function_list |
while do_read
769 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
770 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
771 if test -n "${macro}"
773 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
774 printf "#error \"Non multi-arch definition of ${macro}\"\n"
776 printf "#if !defined (${macro})\n"
777 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
786 printf "/* The following are initialized by the target dependent code. */\n"
787 function_list |
while do_read
789 if [ -n "${comment}" ]
791 echo "${comment}" |
sed \
797 if class_is_predicate_p
799 if test -n "${macro}"
802 printf "#if defined (${macro})\n"
803 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
804 printf "#if !defined (${macro}_P)\n"
805 printf "#define ${macro}_P() (1)\n"
810 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
811 if test -n "${macro}"
813 printf "#if !defined (GDB_TM_FILE) && defined (${macro}_P)\n"
814 printf "#error \"Non multi-arch definition of ${macro}\"\n"
816 printf "#if !defined (${macro}_P)\n"
817 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
821 if class_is_variable_p
824 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
825 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
826 if test -n "${macro}"
828 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
829 printf "#error \"Non multi-arch definition of ${macro}\"\n"
831 printf "#if !defined (${macro})\n"
832 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
836 if class_is_function_p
839 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
841 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
842 elif class_is_multiarch_p
844 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
846 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
848 if [ "x${formal}" = "xvoid" ]
850 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
852 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
854 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
855 if test -n "${macro}"
857 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
858 printf "#error \"Non multi-arch definition of ${macro}\"\n"
860 if [ "x${actual}" = "x" ]
862 d
="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
863 elif [ "x${actual}" = "x-" ]
865 d
="#define ${macro} (gdbarch_${function} (current_gdbarch))"
867 d
="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
869 printf "#if !defined (${macro})\n"
870 if [ "x${actual}" = "x" ]
872 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
873 elif [ "x${actual}" = "x-" ]
875 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
877 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
887 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
890 /* Mechanism for co-ordinating the selection of a specific
893 GDB targets (*-tdep.c) can register an interest in a specific
894 architecture. Other GDB components can register a need to maintain
895 per-architecture data.
897 The mechanisms below ensures that there is only a loose connection
898 between the set-architecture command and the various GDB
899 components. Each component can independently register their need
900 to maintain architecture specific data with gdbarch.
904 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
907 The more traditional mega-struct containing architecture specific
908 data for all the various GDB components was also considered. Since
909 GDB is built from a variable number of (fairly independent)
910 components it was determined that the global aproach was not
914 /* Register a new architectural family with GDB.
916 Register support for the specified ARCHITECTURE with GDB. When
917 gdbarch determines that the specified architecture has been
918 selected, the corresponding INIT function is called.
922 The INIT function takes two parameters: INFO which contains the
923 information available to gdbarch about the (possibly new)
924 architecture; ARCHES which is a list of the previously created
925 \`\`struct gdbarch'' for this architecture.
927 The INFO parameter is, as far as possible, be pre-initialized with
928 information obtained from INFO.ABFD or the global defaults.
930 The ARCHES parameter is a linked list (sorted most recently used)
931 of all the previously created architures for this architecture
932 family. The (possibly NULL) ARCHES->gdbarch can used to access
933 values from the previously selected architecture for this
934 architecture family. The global \`\`current_gdbarch'' shall not be
937 The INIT function shall return any of: NULL - indicating that it
938 doesn't recognize the selected architecture; an existing \`\`struct
939 gdbarch'' from the ARCHES list - indicating that the new
940 architecture is just a synonym for an earlier architecture (see
941 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
942 - that describes the selected architecture (see gdbarch_alloc()).
944 The DUMP_TDEP function shall print out all target specific values.
945 Care should be taken to ensure that the function works in both the
946 multi-arch and non- multi-arch cases. */
950 struct gdbarch *gdbarch;
951 struct gdbarch_list *next;
956 /* Use default: NULL (ZERO). */
957 const struct bfd_arch_info *bfd_arch_info;
959 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
962 /* Use default: NULL (ZERO). */
965 /* Use default: NULL (ZERO). */
966 struct gdbarch_tdep_info *tdep_info;
968 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
969 enum gdb_osabi osabi;
971 /* Use default: NULL (ZERO). */
972 const struct target_desc *target_desc;
975 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
976 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
978 /* DEPRECATED - use gdbarch_register() */
979 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
981 extern void gdbarch_register (enum bfd_architecture architecture,
982 gdbarch_init_ftype *,
983 gdbarch_dump_tdep_ftype *);
986 /* Return a freshly allocated, NULL terminated, array of the valid
987 architecture names. Since architectures are registered during the
988 _initialize phase this function only returns useful information
989 once initialization has been completed. */
991 extern const char **gdbarch_printable_names (void);
994 /* Helper function. Search the list of ARCHES for a GDBARCH that
995 matches the information provided by INFO. */
997 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1000 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1001 basic initialization using values obtained from the INFO and TDEP
1002 parameters. set_gdbarch_*() functions are called to complete the
1003 initialization of the object. */
1005 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1008 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1009 It is assumed that the caller freeds the \`\`struct
1012 extern void gdbarch_free (struct gdbarch *);
1015 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1016 obstack. The memory is freed when the corresponding architecture
1019 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1020 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1021 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1024 /* Helper function. Force an update of the current architecture.
1026 The actual architecture selected is determined by INFO, \`\`(gdb) set
1027 architecture'' et.al., the existing architecture and BFD's default
1028 architecture. INFO should be initialized to zero and then selected
1029 fields should be updated.
1031 Returns non-zero if the update succeeds */
1033 extern int gdbarch_update_p (struct gdbarch_info info);
1036 /* Helper function. Find an architecture matching info.
1038 INFO should be initialized using gdbarch_info_init, relevant fields
1039 set, and then finished using gdbarch_info_fill.
1041 Returns the corresponding architecture, or NULL if no matching
1042 architecture was found. "current_gdbarch" is not updated. */
1044 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1047 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
1049 FIXME: kettenis/20031124: Of the functions that follow, only
1050 gdbarch_from_bfd is supposed to survive. The others will
1051 dissappear since in the future GDB will (hopefully) be truly
1052 multi-arch. However, for now we're still stuck with the concept of
1053 a single active architecture. */
1055 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1058 /* Register per-architecture data-pointer.
1060 Reserve space for a per-architecture data-pointer. An identifier
1061 for the reserved data-pointer is returned. That identifer should
1062 be saved in a local static variable.
1064 Memory for the per-architecture data shall be allocated using
1065 gdbarch_obstack_zalloc. That memory will be deleted when the
1066 corresponding architecture object is deleted.
1068 When a previously created architecture is re-selected, the
1069 per-architecture data-pointer for that previous architecture is
1070 restored. INIT() is not re-called.
1072 Multiple registrarants for any architecture are allowed (and
1073 strongly encouraged). */
1075 struct gdbarch_data;
1077 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1078 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1079 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1080 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1081 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1082 struct gdbarch_data *data,
1085 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1088 /* Set the dynamic target-system-dependent parameters (architecture,
1089 byte-order, ...) using information found in the BFD */
1091 extern void set_gdbarch_from_file (bfd *);
1094 /* Initialize the current architecture to the "first" one we find on
1097 extern void initialize_current_architecture (void);
1099 /* gdbarch trace variable */
1100 extern int gdbarch_debug;
1102 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1107 #../move-if-change new-gdbarch.h gdbarch.h
1108 compare_new gdbarch.h
1115 exec > new-gdbarch.c
1120 #include "arch-utils.h"
1123 #include "inferior.h"
1126 #include "floatformat.h"
1128 #include "gdb_assert.h"
1129 #include "gdb_string.h"
1130 #include "gdb-events.h"
1131 #include "reggroups.h"
1133 #include "gdb_obstack.h"
1135 /* Static function declarations */
1137 static void alloc_gdbarch_data (struct gdbarch *);
1139 /* Non-zero if we want to trace architecture code. */
1141 #ifndef GDBARCH_DEBUG
1142 #define GDBARCH_DEBUG 0
1144 int gdbarch_debug = GDBARCH_DEBUG;
1146 show_gdbarch_debug (struct ui_file *file, int from_tty,
1147 struct cmd_list_element *c, const char *value)
1149 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1153 pformat (const struct floatformat **format)
1158 /* Just print out one of them - this is only for diagnostics. */
1159 return format[0]->name;
1164 # gdbarch open the gdbarch object
1166 printf "/* Maintain the struct gdbarch object */\n"
1168 printf "struct gdbarch\n"
1170 printf " /* Has this architecture been fully initialized? */\n"
1171 printf " int initialized_p;\n"
1173 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1174 printf " struct obstack *obstack;\n"
1176 printf " /* basic architectural information */\n"
1177 function_list |
while do_read
1181 printf " ${returntype} ${function};\n"
1185 printf " /* target specific vector. */\n"
1186 printf " struct gdbarch_tdep *tdep;\n"
1187 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1189 printf " /* per-architecture data-pointers */\n"
1190 printf " unsigned nr_data;\n"
1191 printf " void **data;\n"
1193 printf " /* per-architecture swap-regions */\n"
1194 printf " struct gdbarch_swap *swap;\n"
1197 /* Multi-arch values.
1199 When extending this structure you must:
1201 Add the field below.
1203 Declare set/get functions and define the corresponding
1206 gdbarch_alloc(): If zero/NULL is not a suitable default,
1207 initialize the new field.
1209 verify_gdbarch(): Confirm that the target updated the field
1212 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1215 \`\`startup_gdbarch()'': Append an initial value to the static
1216 variable (base values on the host's c-type system).
1218 get_gdbarch(): Implement the set/get functions (probably using
1219 the macro's as shortcuts).
1224 function_list |
while do_read
1226 if class_is_variable_p
1228 printf " ${returntype} ${function};\n"
1229 elif class_is_function_p
1231 printf " gdbarch_${function}_ftype *${function};\n"
1236 # A pre-initialized vector
1240 /* The default architecture uses host values (for want of a better
1244 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1246 printf "struct gdbarch startup_gdbarch =\n"
1248 printf " 1, /* Always initialized. */\n"
1249 printf " NULL, /* The obstack. */\n"
1250 printf " /* basic architecture information */\n"
1251 function_list |
while do_read
1255 printf " ${staticdefault}, /* ${function} */\n"
1259 /* target specific vector and its dump routine */
1261 /*per-architecture data-pointers and swap regions */
1263 /* Multi-arch values */
1265 function_list |
while do_read
1267 if class_is_function_p || class_is_variable_p
1269 printf " ${staticdefault}, /* ${function} */\n"
1273 /* startup_gdbarch() */
1276 struct gdbarch *current_gdbarch = &startup_gdbarch;
1279 # Create a new gdbarch struct
1282 /* Create a new \`\`struct gdbarch'' based on information provided by
1283 \`\`struct gdbarch_info''. */
1288 gdbarch_alloc (const struct gdbarch_info *info,
1289 struct gdbarch_tdep *tdep)
1291 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1292 so that macros such as TARGET_ARCHITECTURE, when expanded, refer to
1293 the current local architecture and not the previous global
1294 architecture. This ensures that the new architectures initial
1295 values are not influenced by the previous architecture. Once
1296 everything is parameterised with gdbarch, this will go away. */
1297 struct gdbarch *current_gdbarch;
1299 /* Create an obstack for allocating all the per-architecture memory,
1300 then use that to allocate the architecture vector. */
1301 struct obstack *obstack = XMALLOC (struct obstack);
1302 obstack_init (obstack);
1303 current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1304 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1305 current_gdbarch->obstack = obstack;
1307 alloc_gdbarch_data (current_gdbarch);
1309 current_gdbarch->tdep = tdep;
1312 function_list |
while do_read
1316 printf " current_gdbarch->${function} = info->${function};\n"
1320 printf " /* Force the explicit initialization of these. */\n"
1321 function_list |
while do_read
1323 if class_is_function_p || class_is_variable_p
1325 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1327 printf " current_gdbarch->${function} = ${predefault};\n"
1332 /* gdbarch_alloc() */
1334 return current_gdbarch;
1338 # Free a gdbarch struct.
1342 /* Allocate extra space using the per-architecture obstack. */
1345 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1347 void *data = obstack_alloc (arch->obstack, size);
1348 memset (data, 0, size);
1353 /* Free a gdbarch struct. This should never happen in normal
1354 operation --- once you've created a gdbarch, you keep it around.
1355 However, if an architecture's init function encounters an error
1356 building the structure, it may need to clean up a partially
1357 constructed gdbarch. */
1360 gdbarch_free (struct gdbarch *arch)
1362 struct obstack *obstack;
1363 gdb_assert (arch != NULL);
1364 gdb_assert (!arch->initialized_p);
1365 obstack = arch->obstack;
1366 obstack_free (obstack, 0); /* Includes the ARCH. */
1371 # verify a new architecture
1375 /* Ensure that all values in a GDBARCH are reasonable. */
1377 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1378 just happens to match the global variable \`\`current_gdbarch''. That
1379 way macros refering to that variable get the local and not the global
1380 version - ulgh. Once everything is parameterised with gdbarch, this
1384 verify_gdbarch (struct gdbarch *current_gdbarch)
1386 struct ui_file *log;
1387 struct cleanup *cleanups;
1390 log = mem_fileopen ();
1391 cleanups = make_cleanup_ui_file_delete (log);
1393 if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1394 fprintf_unfiltered (log, "\n\tbyte-order");
1395 if (current_gdbarch->bfd_arch_info == NULL)
1396 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1397 /* Check those that need to be defined for the given multi-arch level. */
1399 function_list |
while do_read
1401 if class_is_function_p || class_is_variable_p
1403 if [ "x${invalid_p}" = "x0" ]
1405 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1406 elif class_is_predicate_p
1408 printf " /* Skip verify of ${function}, has predicate */\n"
1409 # FIXME: See do_read for potential simplification
1410 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1412 printf " if (${invalid_p})\n"
1413 printf " current_gdbarch->${function} = ${postdefault};\n"
1414 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1416 printf " if (current_gdbarch->${function} == ${predefault})\n"
1417 printf " current_gdbarch->${function} = ${postdefault};\n"
1418 elif [ -n "${postdefault}" ]
1420 printf " if (current_gdbarch->${function} == 0)\n"
1421 printf " current_gdbarch->${function} = ${postdefault};\n"
1422 elif [ -n "${invalid_p}" ]
1424 printf " if (${invalid_p})\n"
1425 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1426 elif [ -n "${predefault}" ]
1428 printf " if (current_gdbarch->${function} == ${predefault})\n"
1429 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1434 buf = ui_file_xstrdup (log, &dummy);
1435 make_cleanup (xfree, buf);
1436 if (strlen (buf) > 0)
1437 internal_error (__FILE__, __LINE__,
1438 _("verify_gdbarch: the following are invalid ...%s"),
1440 do_cleanups (cleanups);
1444 # dump the structure
1448 /* Print out the details of the current architecture. */
1450 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1451 just happens to match the global variable \`\`current_gdbarch''. That
1452 way macros refering to that variable get the local and not the global
1453 version - ulgh. Once everything is parameterised with gdbarch, this
1457 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1459 const char *gdb_xm_file = "<not-defined>";
1460 const char *gdb_nm_file = "<not-defined>";
1461 const char *gdb_tm_file = "<not-defined>";
1462 #if defined (GDB_XM_FILE)
1463 gdb_xm_file = GDB_XM_FILE;
1465 fprintf_unfiltered (file,
1466 "gdbarch_dump: GDB_XM_FILE = %s\\n",
1468 #if defined (GDB_NM_FILE)
1469 gdb_nm_file = GDB_NM_FILE;
1471 fprintf_unfiltered (file,
1472 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1474 #if defined (GDB_TM_FILE)
1475 gdb_tm_file = GDB_TM_FILE;
1477 fprintf_unfiltered (file,
1478 "gdbarch_dump: GDB_TM_FILE = %s\\n",
1481 function_list |
sort -t: -k 4 |
while do_read
1483 # First the predicate
1484 if class_is_predicate_p
1486 if test -n "${macro}"
1488 printf "#ifdef ${macro}_P\n"
1489 printf " fprintf_unfiltered (file,\n"
1490 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1491 printf " \"${macro}_P()\",\n"
1492 printf " XSTRING (${macro}_P ()));\n"
1495 printf " fprintf_unfiltered (file,\n"
1496 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1497 printf " gdbarch_${function}_p (current_gdbarch));\n"
1499 # Print the macro definition.
1500 if test -n "${macro}"
1502 printf "#ifdef ${macro}\n"
1503 if class_is_function_p
1505 printf " fprintf_unfiltered (file,\n"
1506 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1507 printf " \"${macro}(${actual})\",\n"
1508 printf " XSTRING (${macro} (${actual})));\n"
1510 printf " fprintf_unfiltered (file,\n"
1511 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1512 printf " XSTRING (${macro}));\n"
1516 # Print the corresponding value.
1517 if class_is_function_p
1519 printf " fprintf_unfiltered (file,\n"
1520 printf " \"gdbarch_dump: ${function} = <0x%%lx>\\\\n\",\n"
1521 printf " (long) current_gdbarch->${function});\n"
1524 case "${print}:${returntype}" in
1527 print
="paddr_nz (current_gdbarch->${function})"
1531 print
="paddr_d (current_gdbarch->${function})"
1537 printf " fprintf_unfiltered (file,\n"
1538 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1539 printf " ${print});\n"
1543 if (current_gdbarch->dump_tdep != NULL)
1544 current_gdbarch->dump_tdep (current_gdbarch, file);
1552 struct gdbarch_tdep *
1553 gdbarch_tdep (struct gdbarch *gdbarch)
1555 if (gdbarch_debug >= 2)
1556 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1557 return gdbarch->tdep;
1561 function_list |
while do_read
1563 if class_is_predicate_p
1567 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1569 printf " gdb_assert (gdbarch != NULL);\n"
1570 printf " return ${predicate};\n"
1573 if class_is_function_p
1576 printf "${returntype}\n"
1577 if [ "x${formal}" = "xvoid" ]
1579 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1581 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1584 printf " gdb_assert (gdbarch != NULL);\n"
1585 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1586 if class_is_predicate_p
&& test -n "${predefault}"
1588 # Allow a call to a function with a predicate.
1589 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1591 printf " if (gdbarch_debug >= 2)\n"
1592 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1593 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1595 if class_is_multiarch_p
1602 if class_is_multiarch_p
1604 params
="gdbarch, ${actual}"
1609 if [ "x${returntype}" = "xvoid" ]
1611 printf " gdbarch->${function} (${params});\n"
1613 printf " return gdbarch->${function} (${params});\n"
1618 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1619 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1621 printf " gdbarch->${function} = ${function};\n"
1623 elif class_is_variable_p
1626 printf "${returntype}\n"
1627 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1629 printf " gdb_assert (gdbarch != NULL);\n"
1630 if [ "x${invalid_p}" = "x0" ]
1632 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1633 elif [ -n "${invalid_p}" ]
1635 printf " /* Check variable is valid. */\n"
1636 printf " gdb_assert (!(${invalid_p}));\n"
1637 elif [ -n "${predefault}" ]
1639 printf " /* Check variable changed from pre-default. */\n"
1640 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1642 printf " if (gdbarch_debug >= 2)\n"
1643 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1644 printf " return gdbarch->${function};\n"
1648 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1649 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1651 printf " gdbarch->${function} = ${function};\n"
1653 elif class_is_info_p
1656 printf "${returntype}\n"
1657 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1659 printf " gdb_assert (gdbarch != NULL);\n"
1660 printf " if (gdbarch_debug >= 2)\n"
1661 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1662 printf " return gdbarch->${function};\n"
1667 # All the trailing guff
1671 /* Keep a registry of per-architecture data-pointers required by GDB
1678 gdbarch_data_pre_init_ftype *pre_init;
1679 gdbarch_data_post_init_ftype *post_init;
1682 struct gdbarch_data_registration
1684 struct gdbarch_data *data;
1685 struct gdbarch_data_registration *next;
1688 struct gdbarch_data_registry
1691 struct gdbarch_data_registration *registrations;
1694 struct gdbarch_data_registry gdbarch_data_registry =
1699 static struct gdbarch_data *
1700 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1701 gdbarch_data_post_init_ftype *post_init)
1703 struct gdbarch_data_registration **curr;
1704 /* Append the new registraration. */
1705 for (curr = &gdbarch_data_registry.registrations;
1707 curr = &(*curr)->next);
1708 (*curr) = XMALLOC (struct gdbarch_data_registration);
1709 (*curr)->next = NULL;
1710 (*curr)->data = XMALLOC (struct gdbarch_data);
1711 (*curr)->data->index = gdbarch_data_registry.nr++;
1712 (*curr)->data->pre_init = pre_init;
1713 (*curr)->data->post_init = post_init;
1714 (*curr)->data->init_p = 1;
1715 return (*curr)->data;
1718 struct gdbarch_data *
1719 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1721 return gdbarch_data_register (pre_init, NULL);
1724 struct gdbarch_data *
1725 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1727 return gdbarch_data_register (NULL, post_init);
1730 /* Create/delete the gdbarch data vector. */
1733 alloc_gdbarch_data (struct gdbarch *gdbarch)
1735 gdb_assert (gdbarch->data == NULL);
1736 gdbarch->nr_data = gdbarch_data_registry.nr;
1737 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1740 /* Initialize the current value of the specified per-architecture
1744 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1745 struct gdbarch_data *data,
1748 gdb_assert (data->index < gdbarch->nr_data);
1749 gdb_assert (gdbarch->data[data->index] == NULL);
1750 gdb_assert (data->pre_init == NULL);
1751 gdbarch->data[data->index] = pointer;
1754 /* Return the current value of the specified per-architecture
1758 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1760 gdb_assert (data->index < gdbarch->nr_data);
1761 if (gdbarch->data[data->index] == NULL)
1763 /* The data-pointer isn't initialized, call init() to get a
1765 if (data->pre_init != NULL)
1766 /* Mid architecture creation: pass just the obstack, and not
1767 the entire architecture, as that way it isn't possible for
1768 pre-init code to refer to undefined architecture
1770 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1771 else if (gdbarch->initialized_p
1772 && data->post_init != NULL)
1773 /* Post architecture creation: pass the entire architecture
1774 (as all fields are valid), but be careful to also detect
1775 recursive references. */
1777 gdb_assert (data->init_p);
1779 gdbarch->data[data->index] = data->post_init (gdbarch);
1783 /* The architecture initialization hasn't completed - punt -
1784 hope that the caller knows what they are doing. Once
1785 deprecated_set_gdbarch_data has been initialized, this can be
1786 changed to an internal error. */
1788 gdb_assert (gdbarch->data[data->index] != NULL);
1790 return gdbarch->data[data->index];
1794 /* Keep a registry of the architectures known by GDB. */
1796 struct gdbarch_registration
1798 enum bfd_architecture bfd_architecture;
1799 gdbarch_init_ftype *init;
1800 gdbarch_dump_tdep_ftype *dump_tdep;
1801 struct gdbarch_list *arches;
1802 struct gdbarch_registration *next;
1805 static struct gdbarch_registration *gdbarch_registry = NULL;
1808 append_name (const char ***buf, int *nr, const char *name)
1810 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1816 gdbarch_printable_names (void)
1818 /* Accumulate a list of names based on the registed list of
1820 enum bfd_architecture a;
1822 const char **arches = NULL;
1823 struct gdbarch_registration *rego;
1824 for (rego = gdbarch_registry;
1828 const struct bfd_arch_info *ap;
1829 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1831 internal_error (__FILE__, __LINE__,
1832 _("gdbarch_architecture_names: multi-arch unknown"));
1835 append_name (&arches, &nr_arches, ap->printable_name);
1840 append_name (&arches, &nr_arches, NULL);
1846 gdbarch_register (enum bfd_architecture bfd_architecture,
1847 gdbarch_init_ftype *init,
1848 gdbarch_dump_tdep_ftype *dump_tdep)
1850 struct gdbarch_registration **curr;
1851 const struct bfd_arch_info *bfd_arch_info;
1852 /* Check that BFD recognizes this architecture */
1853 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1854 if (bfd_arch_info == NULL)
1856 internal_error (__FILE__, __LINE__,
1857 _("gdbarch: Attempt to register unknown architecture (%d)"),
1860 /* Check that we haven't seen this architecture before */
1861 for (curr = &gdbarch_registry;
1863 curr = &(*curr)->next)
1865 if (bfd_architecture == (*curr)->bfd_architecture)
1866 internal_error (__FILE__, __LINE__,
1867 _("gdbarch: Duplicate registraration of architecture (%s)"),
1868 bfd_arch_info->printable_name);
1872 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1873 bfd_arch_info->printable_name,
1876 (*curr) = XMALLOC (struct gdbarch_registration);
1877 (*curr)->bfd_architecture = bfd_architecture;
1878 (*curr)->init = init;
1879 (*curr)->dump_tdep = dump_tdep;
1880 (*curr)->arches = NULL;
1881 (*curr)->next = NULL;
1885 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1886 gdbarch_init_ftype *init)
1888 gdbarch_register (bfd_architecture, init, NULL);
1892 /* Look for an architecture using gdbarch_info. */
1894 struct gdbarch_list *
1895 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1896 const struct gdbarch_info *info)
1898 for (; arches != NULL; arches = arches->next)
1900 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1902 if (info->byte_order != arches->gdbarch->byte_order)
1904 if (info->osabi != arches->gdbarch->osabi)
1906 if (info->target_desc != arches->gdbarch->target_desc)
1914 /* Find an architecture that matches the specified INFO. Create a new
1915 architecture if needed. Return that new architecture. Assumes
1916 that there is no current architecture. */
1918 static struct gdbarch *
1919 find_arch_by_info (struct gdbarch_info info)
1921 struct gdbarch *new_gdbarch;
1922 struct gdbarch_registration *rego;
1924 /* The existing architecture has been swapped out - all this code
1925 works from a clean slate. */
1926 gdb_assert (current_gdbarch == NULL);
1928 /* Fill in missing parts of the INFO struct using a number of
1929 sources: "set ..."; INFOabfd supplied; and the global
1931 gdbarch_info_fill (&info);
1933 /* Must have found some sort of architecture. */
1934 gdb_assert (info.bfd_arch_info != NULL);
1938 fprintf_unfiltered (gdb_stdlog,
1939 "find_arch_by_info: info.bfd_arch_info %s\n",
1940 (info.bfd_arch_info != NULL
1941 ? info.bfd_arch_info->printable_name
1943 fprintf_unfiltered (gdb_stdlog,
1944 "find_arch_by_info: info.byte_order %d (%s)\n",
1946 (info.byte_order == BFD_ENDIAN_BIG ? "big"
1947 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
1949 fprintf_unfiltered (gdb_stdlog,
1950 "find_arch_by_info: info.osabi %d (%s)\n",
1951 info.osabi, gdbarch_osabi_name (info.osabi));
1952 fprintf_unfiltered (gdb_stdlog,
1953 "find_arch_by_info: info.abfd 0x%lx\n",
1955 fprintf_unfiltered (gdb_stdlog,
1956 "find_arch_by_info: info.tdep_info 0x%lx\n",
1957 (long) info.tdep_info);
1960 /* Find the tdep code that knows about this architecture. */
1961 for (rego = gdbarch_registry;
1964 if (rego->bfd_architecture == info.bfd_arch_info->arch)
1969 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1970 "No matching architecture\n");
1974 /* Ask the tdep code for an architecture that matches "info". */
1975 new_gdbarch = rego->init (info, rego->arches);
1977 /* Did the tdep code like it? No. Reject the change and revert to
1978 the old architecture. */
1979 if (new_gdbarch == NULL)
1982 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1983 "Target rejected architecture\n");
1987 /* Is this a pre-existing architecture (as determined by already
1988 being initialized)? Move it to the front of the architecture
1989 list (keeping the list sorted Most Recently Used). */
1990 if (new_gdbarch->initialized_p)
1992 struct gdbarch_list **list;
1993 struct gdbarch_list *this;
1995 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1996 "Previous architecture 0x%08lx (%s) selected\n",
1998 new_gdbarch->bfd_arch_info->printable_name);
1999 /* Find the existing arch in the list. */
2000 for (list = ®o->arches;
2001 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2002 list = &(*list)->next);
2003 /* It had better be in the list of architectures. */
2004 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2007 (*list) = this->next;
2008 /* Insert THIS at the front. */
2009 this->next = rego->arches;
2010 rego->arches = this;
2015 /* It's a new architecture. */
2017 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2018 "New architecture 0x%08lx (%s) selected\n",
2020 new_gdbarch->bfd_arch_info->printable_name);
2022 /* Insert the new architecture into the front of the architecture
2023 list (keep the list sorted Most Recently Used). */
2025 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2026 this->next = rego->arches;
2027 this->gdbarch = new_gdbarch;
2028 rego->arches = this;
2031 /* Check that the newly installed architecture is valid. Plug in
2032 any post init values. */
2033 new_gdbarch->dump_tdep = rego->dump_tdep;
2034 verify_gdbarch (new_gdbarch);
2035 new_gdbarch->initialized_p = 1;
2038 gdbarch_dump (new_gdbarch, gdb_stdlog);
2044 gdbarch_find_by_info (struct gdbarch_info info)
2046 struct gdbarch *new_gdbarch;
2048 /* Save the previously selected architecture, setting the global to
2049 NULL. This stops things like gdbarch->init() trying to use the
2050 previous architecture's configuration. The previous architecture
2051 may not even be of the same architecture family. The most recent
2052 architecture of the same family is found at the head of the
2053 rego->arches list. */
2054 struct gdbarch *old_gdbarch = current_gdbarch;
2055 current_gdbarch = NULL;
2057 /* Find the specified architecture. */
2058 new_gdbarch = find_arch_by_info (info);
2060 /* Restore the existing architecture. */
2061 gdb_assert (current_gdbarch == NULL);
2062 current_gdbarch = old_gdbarch;
2067 /* Make the specified architecture current. */
2070 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2072 gdb_assert (new_gdbarch != NULL);
2073 gdb_assert (current_gdbarch != NULL);
2074 gdb_assert (new_gdbarch->initialized_p);
2075 current_gdbarch = new_gdbarch;
2076 architecture_changed_event ();
2077 reinit_frame_cache ();
2080 extern void _initialize_gdbarch (void);
2083 _initialize_gdbarch (void)
2085 struct cmd_list_element *c;
2087 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2088 Set architecture debugging."), _("\\
2089 Show architecture debugging."), _("\\
2090 When non-zero, architecture debugging is enabled."),
2093 &setdebuglist, &showdebuglist);
2099 #../move-if-change new-gdbarch.c gdbarch.c
2100 compare_new gdbarch.c