1 /* Dynamic architecture support for GDB, the GNU debugger.
3 Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation,
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
26 #include "arch-utils.h"
28 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
30 /* Just include everything in sight so that the every old definition
31 of macro is visible. */
35 #include "breakpoint.h"
42 #include "gdb_string.h"
44 #include "gdb_assert.h"
45 #include "sim-regno.h"
49 #include "floatformat.h"
51 /* Use the program counter to determine the contents and size
52 of a breakpoint instruction. If no target-dependent macro
53 BREAKPOINT_FROM_PC has been defined to implement this function,
54 assume that the breakpoint doesn't depend on the PC, and
55 use the values of the BIG_BREAKPOINT and LITTLE_BREAKPOINT macros.
56 Return a pointer to a string of bytes that encode a breakpoint
57 instruction, stores the length of the string to *lenptr,
58 and optionally adjust the pc to point to the correct memory location
59 for inserting the breakpoint. */
62 legacy_breakpoint_from_pc (CORE_ADDR
* pcptr
, int *lenptr
)
64 /* {BIG_,LITTLE_}BREAKPOINT is the sequence of bytes we insert for a
65 breakpoint. On some machines, breakpoints are handled by the
66 target environment and we don't have to worry about them here. */
68 if (TARGET_BYTE_ORDER
== BFD_ENDIAN_BIG
)
70 static unsigned char big_break_insn
[] = BIG_BREAKPOINT
;
71 *lenptr
= sizeof (big_break_insn
);
72 return big_break_insn
;
75 #ifdef LITTLE_BREAKPOINT
76 if (TARGET_BYTE_ORDER
!= BFD_ENDIAN_BIG
)
78 static unsigned char little_break_insn
[] = LITTLE_BREAKPOINT
;
79 *lenptr
= sizeof (little_break_insn
);
80 return little_break_insn
;
85 static unsigned char break_insn
[] = BREAKPOINT
;
86 *lenptr
= sizeof (break_insn
);
94 /* Implementation of extract return value that grubs around in the
97 legacy_extract_return_value (struct type
*type
, struct regcache
*regcache
,
100 char *registers
= deprecated_grub_regcache_for_registers (regcache
);
101 bfd_byte
*buf
= valbuf
;
102 DEPRECATED_EXTRACT_RETURN_VALUE (type
, registers
, buf
); /* OK */
105 /* Implementation of store return value that grubs the register cache.
106 Takes a local copy of the buffer to avoid const problems. */
108 legacy_store_return_value (struct type
*type
, struct regcache
*regcache
,
111 bfd_byte
*b
= alloca (TYPE_LENGTH (type
));
112 gdb_assert (regcache
== current_regcache
);
113 memcpy (b
, buf
, TYPE_LENGTH (type
));
114 DEPRECATED_STORE_RETURN_VALUE (type
, b
);
119 legacy_register_sim_regno (int regnum
)
121 /* Only makes sense to supply raw registers. */
122 gdb_assert (regnum
>= 0 && regnum
< NUM_REGS
);
123 /* NOTE: cagney/2002-05-13: The old code did it this way and it is
124 suspected that some GDB/SIM combinations may rely on this
125 behavour. The default should be one2one_register_sim_regno
127 if (REGISTER_NAME (regnum
) != NULL
128 && REGISTER_NAME (regnum
)[0] != '\0')
131 return LEGACY_SIM_REGNO_IGNORE
;
135 generic_frameless_function_invocation_not (struct frame_info
*fi
)
141 generic_return_value_on_stack_not (struct type
*type
)
147 generic_skip_trampoline_code (CORE_ADDR pc
)
153 generic_in_solib_call_trampoline (CORE_ADDR pc
, char *name
)
159 generic_in_solib_return_trampoline (CORE_ADDR pc
, char *name
)
165 generic_in_function_epilogue_p (struct gdbarch
*gdbarch
, CORE_ADDR pc
)
171 legacy_register_name (int i
)
173 #ifdef REGISTER_NAMES
174 static char *names
[] = REGISTER_NAMES
;
175 if (i
< 0 || i
>= (sizeof (names
) / sizeof (*names
)))
180 internal_error (__FILE__
, __LINE__
,
181 "legacy_register_name: called.");
186 #if defined (CALL_DUMMY)
187 LONGEST legacy_call_dummy_words
[] = CALL_DUMMY
;
189 LONGEST legacy_call_dummy_words
[1];
191 int legacy_sizeof_call_dummy_words
= sizeof (legacy_call_dummy_words
);
194 generic_remote_translate_xfer_address (struct gdbarch
*gdbarch
,
195 struct regcache
*regcache
,
196 CORE_ADDR gdb_addr
, int gdb_len
,
197 CORE_ADDR
* rem_addr
, int *rem_len
)
199 *rem_addr
= gdb_addr
;
204 generic_prologue_frameless_p (CORE_ADDR ip
)
206 return ip
== SKIP_PROLOGUE (ip
);
209 /* New/multi-arched targets should use the correct gdbarch field
210 instead of using this global pointer. */
212 legacy_print_insn (bfd_vma vma
, disassemble_info
*info
)
214 return (*deprecated_tm_print_insn
) (vma
, info
);
217 /* Helper functions for INNER_THAN */
220 core_addr_lessthan (CORE_ADDR lhs
, CORE_ADDR rhs
)
226 core_addr_greaterthan (CORE_ADDR lhs
, CORE_ADDR rhs
)
232 /* Helper functions for TARGET_{FLOAT,DOUBLE}_FORMAT */
234 const struct floatformat
*
235 default_float_format (struct gdbarch
*gdbarch
)
238 int byte_order
= gdbarch_byte_order (gdbarch
);
240 int byte_order
= TARGET_BYTE_ORDER
;
245 return &floatformat_ieee_single_big
;
246 case BFD_ENDIAN_LITTLE
:
247 return &floatformat_ieee_single_little
;
249 internal_error (__FILE__
, __LINE__
,
250 "default_float_format: bad byte order");
255 const struct floatformat
*
256 default_double_format (struct gdbarch
*gdbarch
)
259 int byte_order
= gdbarch_byte_order (gdbarch
);
261 int byte_order
= TARGET_BYTE_ORDER
;
266 return &floatformat_ieee_double_big
;
267 case BFD_ENDIAN_LITTLE
:
268 return &floatformat_ieee_double_little
;
270 internal_error (__FILE__
, __LINE__
,
271 "default_double_format: bad byte order");
275 /* Misc helper functions for targets. */
278 frame_num_args_unknown (struct frame_info
*fi
)
285 generic_register_convertible_not (int num
)
291 /* Under some ABI's that specify the `struct convention' for returning
292 structures by value, by the time we've returned from the function,
293 the return value is sitting there in the caller's buffer, but GDB
294 has no way to find the address of that buffer.
296 On such architectures, use this function as your
297 extract_struct_value_address method. When asked to a struct
298 returned by value in this fashion, GDB will print a nice error
299 message, instead of garbage. */
301 generic_cannot_extract_struct_value_address (char *dummy
)
307 core_addr_identity (CORE_ADDR addr
)
313 no_op_reg_to_regnum (int reg
)
318 /* Default prepare_to_procced(). */
320 default_prepare_to_proceed (int select_it
)
325 /* Generic prepare_to_proceed(). This one should be suitable for most
326 targets that support threads. */
328 generic_prepare_to_proceed (int select_it
)
331 struct target_waitstatus wait_status
;
333 /* Get the last target status returned by target_wait(). */
334 get_last_target_status (&wait_ptid
, &wait_status
);
336 /* Make sure we were stopped either at a breakpoint, or because
338 if (wait_status
.kind
!= TARGET_WAITKIND_STOPPED
339 || (wait_status
.value
.sig
!= TARGET_SIGNAL_TRAP
&&
340 wait_status
.value
.sig
!= TARGET_SIGNAL_INT
))
345 if (!ptid_equal (wait_ptid
, minus_one_ptid
)
346 && !ptid_equal (inferior_ptid
, wait_ptid
))
348 /* Switched over from WAIT_PID. */
349 CORE_ADDR wait_pc
= read_pc_pid (wait_ptid
);
351 if (wait_pc
!= read_pc ())
355 /* Switch back to WAIT_PID thread. */
356 inferior_ptid
= wait_ptid
;
358 /* FIXME: This stuff came from switch_to_thread() in
359 thread.c (which should probably be a public function). */
360 flush_cached_frames ();
361 registers_changed ();
363 select_frame (get_current_frame ());
365 /* We return 1 to indicate that there is a breakpoint here,
366 so we need to step over it before continuing to avoid
367 hitting it straight away. */
368 if (breakpoint_here_p (wait_pc
))
379 init_frame_pc_noop (int fromleaf
, struct frame_info
*prev
)
381 /* Do nothing, implies return the same PC value. */
382 return get_frame_pc (prev
);
386 init_frame_pc_default (int fromleaf
, struct frame_info
*prev
)
388 if (fromleaf
&& DEPRECATED_SAVED_PC_AFTER_CALL_P ())
389 return DEPRECATED_SAVED_PC_AFTER_CALL (get_next_frame (prev
));
390 else if (get_next_frame (prev
) != NULL
)
391 return DEPRECATED_FRAME_SAVED_PC (get_next_frame (prev
));
397 default_elf_make_msymbol_special (asymbol
*sym
, struct minimal_symbol
*msym
)
403 default_coff_make_msymbol_special (int val
, struct minimal_symbol
*msym
)
409 cannot_register_not (int regnum
)
414 /* Legacy version of target_virtual_frame_pointer(). Assumes that
415 there is an DEPRECATED_FP_REGNUM and that it is the same, cooked or
419 legacy_virtual_frame_pointer (CORE_ADDR pc
,
421 LONGEST
*frame_offset
)
423 /* FIXME: cagney/2002-09-13: This code is used when identifying the
424 frame pointer of the current PC. It is assuming that a single
425 register and an offset can determine this. I think it should
426 instead generate a byte code expression as that would work better
427 with things like Dwarf2's CFI. */
428 if (DEPRECATED_FP_REGNUM
>= 0 && DEPRECATED_FP_REGNUM
< NUM_REGS
)
429 *frame_regnum
= DEPRECATED_FP_REGNUM
;
430 else if (SP_REGNUM
>= 0 && SP_REGNUM
< NUM_REGS
)
431 *frame_regnum
= SP_REGNUM
;
433 /* Should this be an internal error? I guess so, it is reflecting
434 an architectural limitation in the current design. */
435 internal_error (__FILE__
, __LINE__
, "No virtual frame pointer available");
439 /* Assume the world is sane, every register's virtual and real size
443 generic_register_size (int regnum
)
445 gdb_assert (regnum
>= 0 && regnum
< NUM_REGS
+ NUM_PSEUDO_REGS
);
446 if (gdbarch_register_type_p (current_gdbarch
))
447 return TYPE_LENGTH (gdbarch_register_type (current_gdbarch
, regnum
));
449 /* FIXME: cagney/2003-03-01: Once all architectures implement
450 gdbarch_register_type(), this entire function can go away. It
451 is made obsolete by register_size(). */
452 return TYPE_LENGTH (REGISTER_VIRTUAL_TYPE (regnum
)); /* OK */
455 /* Assume all registers are adjacent. */
458 generic_register_byte (int regnum
)
462 gdb_assert (regnum
>= 0 && regnum
< NUM_REGS
+ NUM_PSEUDO_REGS
);
464 for (i
= 0; i
< regnum
; i
++)
466 byte
+= generic_register_size (i
);
473 legacy_pc_in_sigtramp (CORE_ADDR pc
, char *name
)
475 #if !defined (IN_SIGTRAMP)
476 if (SIGTRAMP_START_P ())
477 return (pc
) >= SIGTRAMP_START (pc
) && (pc
) < SIGTRAMP_END (pc
);
479 return name
&& strcmp ("_sigtramp", name
) == 0;
481 return IN_SIGTRAMP (pc
, name
);
486 legacy_convert_register_p (int regnum
)
488 return REGISTER_CONVERTIBLE (regnum
);
492 legacy_register_to_value (int regnum
, struct type
*type
,
493 char *from
, char *to
)
495 REGISTER_CONVERT_TO_VIRTUAL (regnum
, type
, from
, to
);
499 legacy_value_to_register (struct type
*type
, int regnum
,
500 char *from
, char *to
)
502 REGISTER_CONVERT_TO_RAW (type
, regnum
, from
, to
);
506 /* Functions to manipulate the endianness of the target. */
508 /* ``target_byte_order'' is only used when non- multi-arch.
509 Multi-arch targets obtain the current byte order using the
510 TARGET_BYTE_ORDER gdbarch method.
512 The choice of initial value is entirely arbitrary. During startup,
513 the function initialize_current_architecture() updates this value
514 based on default byte-order information extracted from BFD. */
515 int target_byte_order
= BFD_ENDIAN_BIG
;
516 int target_byte_order_auto
= 1;
518 static const char endian_big
[] = "big";
519 static const char endian_little
[] = "little";
520 static const char endian_auto
[] = "auto";
521 static const char *endian_enum
[] =
528 static const char *set_endian_string
;
530 /* Called by ``show endian''. */
533 show_endian (char *args
, int from_tty
)
535 if (TARGET_BYTE_ORDER_AUTO
)
536 printf_unfiltered ("The target endianness is set automatically (currently %s endian)\n",
537 (TARGET_BYTE_ORDER
== BFD_ENDIAN_BIG
? "big" : "little"));
539 printf_unfiltered ("The target is assumed to be %s endian\n",
540 (TARGET_BYTE_ORDER
== BFD_ENDIAN_BIG
? "big" : "little"));
544 set_endian (char *ignore_args
, int from_tty
, struct cmd_list_element
*c
)
546 if (set_endian_string
== endian_auto
)
548 target_byte_order_auto
= 1;
550 else if (set_endian_string
== endian_little
)
552 target_byte_order_auto
= 0;
555 struct gdbarch_info info
;
556 gdbarch_info_init (&info
);
557 info
.byte_order
= BFD_ENDIAN_LITTLE
;
558 if (! gdbarch_update_p (info
))
560 printf_unfiltered ("Little endian target not supported by GDB\n");
565 target_byte_order
= BFD_ENDIAN_LITTLE
;
568 else if (set_endian_string
== endian_big
)
570 target_byte_order_auto
= 0;
573 struct gdbarch_info info
;
574 gdbarch_info_init (&info
);
575 info
.byte_order
= BFD_ENDIAN_BIG
;
576 if (! gdbarch_update_p (info
))
578 printf_unfiltered ("Big endian target not supported by GDB\n");
583 target_byte_order
= BFD_ENDIAN_BIG
;
587 internal_error (__FILE__
, __LINE__
,
588 "set_endian: bad value");
589 show_endian (NULL
, from_tty
);
592 /* Set the endianness from a BFD. */
595 set_endian_from_file (bfd
*abfd
)
599 internal_error (__FILE__
, __LINE__
,
600 "set_endian_from_file: not for multi-arch");
601 if (bfd_big_endian (abfd
))
602 want
= BFD_ENDIAN_BIG
;
604 want
= BFD_ENDIAN_LITTLE
;
605 if (TARGET_BYTE_ORDER_AUTO
)
606 target_byte_order
= want
;
607 else if (TARGET_BYTE_ORDER
!= want
)
608 warning ("%s endian file does not match %s endian target.",
609 want
== BFD_ENDIAN_BIG
? "big" : "little",
610 TARGET_BYTE_ORDER
== BFD_ENDIAN_BIG
? "big" : "little");
614 /* Functions to manipulate the architecture of the target */
616 enum set_arch
{ set_arch_auto
, set_arch_manual
};
618 int target_architecture_auto
= 1;
620 const char *set_architecture_string
;
622 /* Old way of changing the current architecture. */
624 extern const struct bfd_arch_info bfd_default_arch_struct
;
625 const struct bfd_arch_info
*target_architecture
= &bfd_default_arch_struct
;
626 int (*target_architecture_hook
) (const struct bfd_arch_info
*ap
);
629 arch_ok (const struct bfd_arch_info
*arch
)
632 internal_error (__FILE__
, __LINE__
,
633 "arch_ok: not multi-arched");
634 /* Should be performing the more basic check that the binary is
635 compatible with GDB. */
636 /* Check with the target that the architecture is valid. */
637 return (target_architecture_hook
== NULL
638 || target_architecture_hook (arch
));
642 set_arch (const struct bfd_arch_info
*arch
,
646 internal_error (__FILE__
, __LINE__
,
647 "set_arch: not multi-arched");
652 warning ("Target may not support %s architecture",
653 arch
->printable_name
);
654 target_architecture
= arch
;
656 case set_arch_manual
:
659 printf_unfiltered ("Target does not support `%s' architecture.\n",
660 arch
->printable_name
);
664 target_architecture_auto
= 0;
665 target_architecture
= arch
;
670 gdbarch_dump (current_gdbarch
, gdb_stdlog
);
673 /* Set the architecture from arch/machine (deprecated) */
676 set_architecture_from_arch_mach (enum bfd_architecture arch
,
679 const struct bfd_arch_info
*wanted
= bfd_lookup_arch (arch
, mach
);
681 internal_error (__FILE__
, __LINE__
,
682 "set_architecture_from_arch_mach: not multi-arched");
684 set_arch (wanted
, set_arch_manual
);
686 internal_error (__FILE__
, __LINE__
,
687 "gdbarch: hardwired architecture/machine not recognized");
690 /* Set the architecture from a BFD (deprecated) */
693 set_architecture_from_file (bfd
*abfd
)
695 const struct bfd_arch_info
*wanted
= bfd_get_arch_info (abfd
);
697 internal_error (__FILE__
, __LINE__
,
698 "set_architecture_from_file: not multi-arched");
699 if (target_architecture_auto
)
701 set_arch (wanted
, set_arch_auto
);
703 else if (wanted
!= target_architecture
)
705 warning ("%s architecture file may be incompatible with %s target.",
706 wanted
->printable_name
,
707 target_architecture
->printable_name
);
712 /* Called if the user enters ``show architecture'' without an
716 show_architecture (char *args
, int from_tty
)
719 arch
= TARGET_ARCHITECTURE
->printable_name
;
720 if (target_architecture_auto
)
721 printf_filtered ("The target architecture is set automatically (currently %s)\n", arch
);
723 printf_filtered ("The target architecture is assumed to be %s\n", arch
);
727 /* Called if the user enters ``set architecture'' with or without an
731 set_architecture (char *ignore_args
, int from_tty
, struct cmd_list_element
*c
)
733 if (strcmp (set_architecture_string
, "auto") == 0)
735 target_architecture_auto
= 1;
737 else if (GDB_MULTI_ARCH
)
739 struct gdbarch_info info
;
740 gdbarch_info_init (&info
);
741 info
.bfd_arch_info
= bfd_scan_arch (set_architecture_string
);
742 if (info
.bfd_arch_info
== NULL
)
743 internal_error (__FILE__
, __LINE__
,
744 "set_architecture: bfd_scan_arch failed");
745 if (gdbarch_update_p (info
))
746 target_architecture_auto
= 0;
748 printf_unfiltered ("Architecture `%s' not recognized.\n",
749 set_architecture_string
);
753 const struct bfd_arch_info
*arch
754 = bfd_scan_arch (set_architecture_string
);
756 internal_error (__FILE__
, __LINE__
,
757 "set_architecture: bfd_scan_arch failed");
758 set_arch (arch
, set_arch_manual
);
760 show_architecture (NULL
, from_tty
);
763 /* Set the dynamic target-system-dependent parameters (architecture,
764 byte-order) using information found in the BFD */
767 set_gdbarch_from_file (bfd
*abfd
)
771 struct gdbarch_info info
;
772 gdbarch_info_init (&info
);
774 if (! gdbarch_update_p (info
))
775 error ("Architecture of file not recognized.\n");
779 set_architecture_from_file (abfd
);
780 set_endian_from_file (abfd
);
784 /* Initialize the current architecture. Update the ``set
785 architecture'' command so that it specifies a list of valid
788 #ifdef DEFAULT_BFD_ARCH
789 extern const bfd_arch_info_type DEFAULT_BFD_ARCH
;
790 static const bfd_arch_info_type
*default_bfd_arch
= &DEFAULT_BFD_ARCH
;
792 static const bfd_arch_info_type
*default_bfd_arch
;
795 #ifdef DEFAULT_BFD_VEC
796 extern const bfd_target DEFAULT_BFD_VEC
;
797 static const bfd_target
*default_bfd_vec
= &DEFAULT_BFD_VEC
;
799 static const bfd_target
*default_bfd_vec
;
803 initialize_current_architecture (void)
805 const char **arches
= gdbarch_printable_names ();
807 /* determine a default architecture and byte order. */
808 struct gdbarch_info info
;
809 gdbarch_info_init (&info
);
811 /* Find a default architecture. */
812 if (info
.bfd_arch_info
== NULL
813 && default_bfd_arch
!= NULL
)
814 info
.bfd_arch_info
= default_bfd_arch
;
815 if (info
.bfd_arch_info
== NULL
)
817 /* Choose the architecture by taking the first one
819 const char *chosen
= arches
[0];
821 for (arch
= arches
; *arch
!= NULL
; arch
++)
823 if (strcmp (*arch
, chosen
) < 0)
827 internal_error (__FILE__
, __LINE__
,
828 "initialize_current_architecture: No arch");
829 info
.bfd_arch_info
= bfd_scan_arch (chosen
);
830 if (info
.bfd_arch_info
== NULL
)
831 internal_error (__FILE__
, __LINE__
,
832 "initialize_current_architecture: Arch not found");
835 /* Take several guesses at a byte order. */
836 if (info
.byte_order
== BFD_ENDIAN_UNKNOWN
837 && default_bfd_vec
!= NULL
)
839 /* Extract BFD's default vector's byte order. */
840 switch (default_bfd_vec
->byteorder
)
843 info
.byte_order
= BFD_ENDIAN_BIG
;
845 case BFD_ENDIAN_LITTLE
:
846 info
.byte_order
= BFD_ENDIAN_LITTLE
;
852 if (info
.byte_order
== BFD_ENDIAN_UNKNOWN
)
854 /* look for ``*el-*'' in the target name. */
856 chp
= strchr (target_name
, '-');
858 && chp
- 2 >= target_name
859 && strncmp (chp
- 2, "el", 2) == 0)
860 info
.byte_order
= BFD_ENDIAN_LITTLE
;
862 if (info
.byte_order
== BFD_ENDIAN_UNKNOWN
)
864 /* Wire it to big-endian!!! */
865 info
.byte_order
= BFD_ENDIAN_BIG
;
870 if (! gdbarch_update_p (info
))
872 internal_error (__FILE__
, __LINE__
,
873 "initialize_current_architecture: Selection of initial architecture failed");
878 /* If the multi-arch logic comes up with a byte-order (from BFD)
879 use it for the non-multi-arch case. */
880 if (info
.byte_order
!= BFD_ENDIAN_UNKNOWN
)
881 target_byte_order
= info
.byte_order
;
882 initialize_non_multiarch ();
885 /* Create the ``set architecture'' command appending ``auto'' to the
886 list of architectures. */
888 struct cmd_list_element
*c
;
889 /* Append ``auto''. */
891 for (nr
= 0; arches
[nr
] != NULL
; nr
++);
892 arches
= xrealloc (arches
, sizeof (char*) * (nr
+ 2));
893 arches
[nr
+ 0] = "auto";
894 arches
[nr
+ 1] = NULL
;
895 /* FIXME: add_set_enum_cmd() uses an array of ``char *'' instead
896 of ``const char *''. We just happen to know that the casts are
898 c
= add_set_enum_cmd ("architecture", class_support
,
899 arches
, &set_architecture_string
,
900 "Set architecture of target.",
902 set_cmd_sfunc (c
, set_architecture
);
903 add_alias_cmd ("processor", "architecture", class_support
, 1, &setlist
);
904 /* Don't use set_from_show - need to print both auto/manual and
906 add_cmd ("architecture", class_support
, show_architecture
,
907 "Show the current target architecture", &showlist
);
912 /* Initialize a gdbarch info to values that will be automatically
913 overridden. Note: Originally, this ``struct info'' was initialized
914 using memset(0). Unfortunatly, that ran into problems, namely
915 BFD_ENDIAN_BIG is zero. An explicit initialization function that
916 can explicitly set each field to a well defined value is used. */
919 gdbarch_info_init (struct gdbarch_info
*info
)
921 memset (info
, 0, sizeof (struct gdbarch_info
));
922 info
->byte_order
= BFD_ENDIAN_UNKNOWN
;
923 info
->osabi
= GDB_OSABI_UNINITIALIZED
;
928 extern initialize_file_ftype _initialize_gdbarch_utils
;
931 _initialize_gdbarch_utils (void)
933 struct cmd_list_element
*c
;
934 c
= add_set_enum_cmd ("endian", class_support
,
935 endian_enum
, &set_endian_string
,
936 "Set endianness of target.",
938 set_cmd_sfunc (c
, set_endian
);
939 /* Don't use set_from_show - need to print both auto/manual and
941 add_cmd ("endian", class_support
, show_endian
,
942 "Show the current byte-order", &showlist
);