1 /* BFD library support routines for architectures.
2 Copyright (C) 1990, 91-98, 1999 Free Software Foundation, Inc.
3 Hacked by John Gilmore and Steve Chamberlain of Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
31 BFD keeps one atom in a BFD describing the
32 architecture of the data attached to the BFD: a pointer to a
33 <<bfd_arch_info_type>>.
35 Pointers to structures can be requested independently of a BFD
36 so that an architecture's information can be interrogated
37 without access to an open BFD.
39 The architecture information is provided by each architecture package.
40 The set of default architectures is selected by the macro
41 <<SELECT_ARCHITECTURES>>. This is normally set up in the
42 @file{config/@var{target}.mt} file of your choice. If the name is not
43 defined, then all the architectures supported are included.
45 When BFD starts up, all the architectures are called with an
46 initialize method. It is up to the architecture back end to
47 insert as many items into the list of architectures as it wants to;
48 generally this would be one for each machine and one for the
49 default case (an item with a machine field of 0).
51 BFD's idea of an architecture is implemented in @file{archures.c}.
60 This enum gives the object file's CPU architecture, in a
61 global sense---i.e., what processor family does it belong to?
62 Another field indicates which processor within
63 the family is in use. The machine gives a number which
64 distinguishes different versions of the architecture,
65 containing, for example, 2 and 3 for Intel i960 KA and i960 KB,
66 and 68020 and 68030 for Motorola 68020 and 68030.
68 .enum bfd_architecture
70 . bfd_arch_unknown, {* File arch not known *}
71 . bfd_arch_obscure, {* Arch known, not one of these *}
72 . bfd_arch_m68k, {* Motorola 68xxx *}
73 .#define bfd_mach_m68000 1
74 .#define bfd_mach_m68008 2
75 .#define bfd_mach_m68010 3
76 .#define bfd_mach_m68020 4
77 .#define bfd_mach_m68030 5
78 .#define bfd_mach_m68040 6
79 .#define bfd_mach_m68060 7
80 .#define bfd_mach_cpu32 8
81 . bfd_arch_vax, {* DEC Vax *}
82 . bfd_arch_i960, {* Intel 960 *}
83 . {* The order of the following is important.
84 . lower number indicates a machine type that
85 . only accepts a subset of the instructions
86 . available to machines with higher numbers.
87 . The exception is the "ca", which is
88 . incompatible with all other machines except
91 .#define bfd_mach_i960_core 1
92 .#define bfd_mach_i960_ka_sa 2
93 .#define bfd_mach_i960_kb_sb 3
94 .#define bfd_mach_i960_mc 4
95 .#define bfd_mach_i960_xa 5
96 .#define bfd_mach_i960_ca 6
97 .#define bfd_mach_i960_jx 7
98 .#define bfd_mach_i960_hx 8
100 . bfd_arch_a29k, {* AMD 29000 *}
101 . bfd_arch_sparc, {* SPARC *}
102 .#define bfd_mach_sparc 1
103 .{* The difference between v8plus and v9 is that v9 is a true 64 bit env. *}
104 .#define bfd_mach_sparc_sparclet 2
105 .#define bfd_mach_sparc_sparclite 3
106 .#define bfd_mach_sparc_v8plus 4
107 .#define bfd_mach_sparc_v8plusa 5 {* with ultrasparc add'ns *}
108 .#define bfd_mach_sparc_sparclite_le 6
109 .#define bfd_mach_sparc_v9 7
110 .#define bfd_mach_sparc_v9a 8 {* with ultrasparc add'ns *}
111 .{* Nonzero if MACH has the v9 instruction set. *}
112 .#define bfd_mach_sparc_v9_p(mach) \
113 . ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9a)
114 . bfd_arch_mips, {* MIPS Rxxxx *}
115 .#define bfd_mach_mips3000 3000
116 .#define bfd_mach_mips3900 3900
117 .#define bfd_mach_mips4000 4000
118 .#define bfd_mach_mips4010 4010
119 .#define bfd_mach_mips4100 4100
120 .#define bfd_mach_mips4111 4111
121 .#define bfd_mach_mips4300 4300
122 .#define bfd_mach_mips4400 4400
123 .#define bfd_mach_mips4600 4600
124 .#define bfd_mach_mips4650 4650
125 .#define bfd_mach_mips5000 5000
126 .#define bfd_mach_mips6000 6000
127 .#define bfd_mach_mips8000 8000
128 .#define bfd_mach_mips10000 10000
129 .#define bfd_mach_mips16 16
130 . bfd_arch_i386, {* Intel 386 *}
131 .#define bfd_mach_i386_i386 0
132 .#define bfd_mach_i386_i8086 1
133 .#define bfd_mach_i386_i386_intel_syntax 2
134 . bfd_arch_we32k, {* AT&T WE32xxx *}
135 . bfd_arch_tahoe, {* CCI/Harris Tahoe *}
136 . bfd_arch_i860, {* Intel 860 *}
137 . bfd_arch_romp, {* IBM ROMP PC/RT *}
138 . bfd_arch_alliant, {* Alliant *}
139 . bfd_arch_convex, {* Convex *}
140 . bfd_arch_m88k, {* Motorola 88xxx *}
141 . bfd_arch_pyramid, {* Pyramid Technology *}
142 . bfd_arch_h8300, {* Hitachi H8/300 *}
143 .#define bfd_mach_h8300 1
144 .#define bfd_mach_h8300h 2
145 .#define bfd_mach_h8300s 3
146 . bfd_arch_powerpc, {* PowerPC *}
147 . bfd_arch_rs6000, {* IBM RS/6000 *}
148 . bfd_arch_hppa, {* HP PA RISC *}
149 . bfd_arch_d10v, {* Mitsubishi D10V *}
150 .#define bfd_mach_d10v 0
151 .#define bfd_mach_d10v_ts2 2
152 .#define bfd_mach_d10v_ts3 3
153 . bfd_arch_d30v, {* Mitsubishi D30V *}
154 . bfd_arch_z8k, {* Zilog Z8000 *}
155 .#define bfd_mach_z8001 1
156 .#define bfd_mach_z8002 2
157 . bfd_arch_h8500, {* Hitachi H8/500 *}
158 . bfd_arch_sh, {* Hitachi SH *}
159 .#define bfd_mach_sh 0
160 .#define bfd_mach_sh3 0x30
161 .#define bfd_mach_sh3e 0x3e
162 . bfd_arch_alpha, {* Dec Alpha *}
163 .#define bfd_mach_alpha_ev4 0x10
164 .#define bfd_mach_alpha_ev5 0x20
165 .#define bfd_mach_alpha_ev6 0x30
166 . bfd_arch_arm, {* Advanced Risc Machines ARM *}
167 .#define bfd_mach_arm_2 1
168 .#define bfd_mach_arm_2a 2
169 .#define bfd_mach_arm_3 3
170 .#define bfd_mach_arm_3M 4
171 .#define bfd_mach_arm_4 5
172 .#define bfd_mach_arm_4T 6
173 .#define bfd_mach_arm_5 7
174 .#define bfd_mach_arm_5T 8
175 . bfd_arch_ns32k, {* National Semiconductors ns32000 *}
176 . bfd_arch_w65, {* WDC 65816 *}
177 . bfd_arch_tic30, {* Texas Instruments TMS320C30 *}
178 . bfd_arch_tic80, {* TI TMS320c80 (MVP) *}
179 . bfd_arch_v850, {* NEC V850 *}
180 .#define bfd_mach_v850 0
181 .#define bfd_mach_v850e 'E'
182 .#define bfd_mach_v850ea 'A'
183 . bfd_arch_arc, {* Argonaut RISC Core *}
184 .#define bfd_mach_arc_base 0
185 . bfd_arch_m32r, {* Mitsubishi M32R/D *}
186 .#define bfd_mach_m32r 0 {* backwards compatibility *}
187 .#define bfd_mach_m32rx 'x'
188 . bfd_arch_mn10200, {* Matsushita MN10200 *}
189 . bfd_arch_mn10300, {* Matsushita MN10300 *}
190 .#define bfd_mach_mn10300 300
191 .#define bfd_mach_am33 330
193 .#define bfd_mach_fr30 0x46523330
208 This structure contains information on architectures for use
212 .typedef struct bfd_arch_info
215 . int bits_per_address;
217 . enum bfd_architecture arch;
218 . unsigned long mach;
219 . const char *arch_name;
220 . const char *printable_name;
221 . unsigned int section_align_power;
222 . {* true if this is the default machine for the architecture *}
223 . boolean the_default;
224 . const struct bfd_arch_info * (*compatible)
225 . PARAMS ((const struct bfd_arch_info *a,
226 . const struct bfd_arch_info *b));
228 . boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
230 . const struct bfd_arch_info *next;
231 .} bfd_arch_info_type;
234 extern const bfd_arch_info_type bfd_a29k_arch
;
235 extern const bfd_arch_info_type bfd_alpha_arch
;
236 extern const bfd_arch_info_type bfd_arc_arch
;
237 extern const bfd_arch_info_type bfd_arm_arch
;
238 extern const bfd_arch_info_type bfd_d10v_arch
;
239 extern const bfd_arch_info_type bfd_d30v_arch
;
240 extern const bfd_arch_info_type bfd_h8300_arch
;
241 extern const bfd_arch_info_type bfd_h8500_arch
;
242 extern const bfd_arch_info_type bfd_hppa_arch
;
243 extern const bfd_arch_info_type bfd_i386_arch
;
244 extern const bfd_arch_info_type bfd_i860_arch
;
245 extern const bfd_arch_info_type bfd_i960_arch
;
246 extern const bfd_arch_info_type bfd_m32r_arch
;
247 extern const bfd_arch_info_type bfd_m68k_arch
;
248 extern const bfd_arch_info_type bfd_m88k_arch
;
249 extern const bfd_arch_info_type bfd_mips_arch
;
250 extern const bfd_arch_info_type bfd_mn10200_arch
;
251 extern const bfd_arch_info_type bfd_mn10300_arch
;
252 extern const bfd_arch_info_type bfd_powerpc_arch
;
253 extern const bfd_arch_info_type bfd_rs6000_arch
;
254 extern const bfd_arch_info_type bfd_pj_arch
;
255 extern const bfd_arch_info_type bfd_sh_arch
;
256 extern const bfd_arch_info_type bfd_sparc_arch
;
257 extern const bfd_arch_info_type bfd_tic30_arch
;
258 extern const bfd_arch_info_type bfd_tic80_arch
;
259 extern const bfd_arch_info_type bfd_vax_arch
;
260 extern const bfd_arch_info_type bfd_we32k_arch
;
261 extern const bfd_arch_info_type bfd_z8k_arch
;
262 extern const bfd_arch_info_type bfd_ns32k_arch
;
263 extern const bfd_arch_info_type bfd_w65_arch
;
264 extern const bfd_arch_info_type bfd_v850_arch
;
265 extern const bfd_arch_info_type bfd_fr30_arch
;
266 extern const bfd_arch_info_type bfd_mcore_arch
;
268 static const bfd_arch_info_type
* const bfd_archures_list
[] =
270 #ifdef SELECT_ARCHITECTURES
271 SELECT_ARCHITECTURES
,
314 const char *bfd_printable_name(bfd *abfd);
317 Return a printable string representing the architecture and machine
318 from the pointer to the architecture info structure.
323 bfd_printable_name (abfd
)
326 return abfd
->arch_info
->printable_name
;
336 const bfd_arch_info_type *bfd_scan_arch(const char *string);
339 Figure out if BFD supports any cpu which could be described with
340 the name @var{string}. Return a pointer to an <<arch_info>>
341 structure if a machine is found, otherwise NULL.
345 const bfd_arch_info_type
*
346 bfd_scan_arch (string
)
349 const bfd_arch_info_type
* const *app
, *ap
;
351 /* Look through all the installed architectures */
352 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
354 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
356 if (ap
->scan (ap
, string
))
371 const char **bfd_arch_list(void);
374 Return a freshly malloced NULL-terminated vector of the names
375 of all the valid BFD architectures. Do not modify the names.
383 const char **name_ptr
;
384 const char **name_list
;
385 const bfd_arch_info_type
* const *app
;
387 /* Determine the number of architectures */
389 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
391 const bfd_arch_info_type
*ap
;
392 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
398 name_list
= (CONST
char **)
399 bfd_malloc ((vec_length
+ 1) * sizeof (char **));
400 if (name_list
== NULL
)
403 /* Point the list at each of the names */
404 name_ptr
= name_list
;
405 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
407 const bfd_arch_info_type
*ap
;
408 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
410 *name_ptr
= ap
->printable_name
;
423 bfd_arch_get_compatible
426 const bfd_arch_info_type *bfd_arch_get_compatible(
431 Determine whether two BFDs'
432 architectures and machine types are compatible. Calculates
433 the lowest common denominator between the two architectures
434 and machine types implied by the BFDs and returns a pointer to
435 an <<arch_info>> structure describing the compatible machine.
438 const bfd_arch_info_type
*
439 bfd_arch_get_compatible (abfd
, bbfd
)
443 /* If either architecture is unknown, then all we can do is assume
444 the user knows what he's doing. */
445 if (abfd
->arch_info
->arch
== bfd_arch_unknown
)
446 return bbfd
->arch_info
;
447 if (bbfd
->arch_info
->arch
== bfd_arch_unknown
)
448 return abfd
->arch_info
;
450 /* Otherwise architecture-specific code has to decide. */
451 return abfd
->arch_info
->compatible (abfd
->arch_info
, bbfd
->arch_info
);
457 bfd_default_arch_struct
460 The <<bfd_default_arch_struct>> is an item of
461 <<bfd_arch_info_type>> which has been initialized to a fairly
462 generic state. A BFD starts life by pointing to this
463 structure, until the correct back end has determined the real
464 architecture of the file.
466 .extern const bfd_arch_info_type bfd_default_arch_struct;
470 const bfd_arch_info_type bfd_default_arch_struct
=
472 32,32,8,bfd_arch_unknown
,0,"unknown","unknown",2,true,
473 bfd_default_compatible
,
483 void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
486 Set the architecture info of @var{abfd} to @var{arg}.
490 bfd_set_arch_info (abfd
, arg
)
492 const bfd_arch_info_type
*arg
;
494 abfd
->arch_info
= arg
;
499 bfd_default_set_arch_mach
502 boolean bfd_default_set_arch_mach(bfd *abfd,
503 enum bfd_architecture arch,
507 Set the architecture and machine type in BFD @var{abfd}
508 to @var{arch} and @var{mach}. Find the correct
509 pointer to a structure and insert it into the <<arch_info>>
514 bfd_default_set_arch_mach (abfd
, arch
, mach
)
516 enum bfd_architecture arch
;
519 const bfd_arch_info_type
* const *app
, *ap
;
521 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
523 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
527 || (mach
== 0 && ap
->the_default
)))
529 abfd
->arch_info
= ap
;
535 abfd
->arch_info
= &bfd_default_arch_struct
;
536 bfd_set_error (bfd_error_bad_value
);
546 enum bfd_architecture bfd_get_arch(bfd *abfd);
549 Return the enumerated type which describes the BFD @var{abfd}'s
554 enum bfd_architecture
558 return abfd
->arch_info
->arch
;
566 unsigned long bfd_get_mach(bfd *abfd);
569 Return the long type which describes the BFD @var{abfd}'s
577 return abfd
->arch_info
->mach
;
582 bfd_arch_bits_per_byte
585 unsigned int bfd_arch_bits_per_byte(bfd *abfd);
588 Return the number of bits in one of the BFD @var{abfd}'s
589 architecture's bytes.
594 bfd_arch_bits_per_byte (abfd
)
597 return abfd
->arch_info
->bits_per_byte
;
602 bfd_arch_bits_per_address
605 unsigned int bfd_arch_bits_per_address(bfd *abfd);
608 Return the number of bits in one of the BFD @var{abfd}'s
609 architecture's addresses.
613 bfd_arch_bits_per_address (abfd
)
616 return abfd
->arch_info
->bits_per_address
;
622 bfd_default_compatible
625 const bfd_arch_info_type *bfd_default_compatible
626 (const bfd_arch_info_type *a,
627 const bfd_arch_info_type *b);
630 The default function for testing for compatibility.
633 const bfd_arch_info_type
*
634 bfd_default_compatible (a
,b
)
635 const bfd_arch_info_type
*a
;
636 const bfd_arch_info_type
*b
;
638 if (a
->arch
!= b
->arch
)
641 if (a
->mach
> b
->mach
)
644 if (b
->mach
> a
->mach
)
656 boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
659 The default function for working out whether this is an
660 architecture hit and a machine hit.
664 bfd_default_scan (info
, string
)
665 const struct bfd_arch_info
*info
;
670 unsigned long number
;
671 enum bfd_architecture arch
;
672 const char *printable_name_colon
;
674 /* Exact match of the architecture name (ARCH_NAME) and also the
675 default architecture? */
676 if (strcasecmp (string
, info
->arch_name
) == 0
677 && info
->the_default
)
680 /* Exact match of the machine name (PRINTABLE_NAME)? */
681 if (strcasecmp (string
, info
->printable_name
) == 0)
684 /* Given that printable_name contains no colon, attempt to match:
685 ARCH_NAME [ ":" ] PRINTABLE_NAME? */
686 printable_name_colon
= strchr (info
->printable_name
, ':');
687 if (printable_name_colon
== NULL
)
689 int strlen_arch_name
= strlen (info
->arch_name
);
690 if (strncasecmp (string
, info
->arch_name
, strlen_arch_name
) == 0)
692 if (string
[strlen_arch_name
] == ':')
694 if (strcasecmp (string
+ strlen_arch_name
+ 1,
695 info
->printable_name
) == 0)
700 if (strcasecmp (string
+ strlen_arch_name
,
701 info
->printable_name
) == 0)
707 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
708 Attempt to match: <arch> <mach>? */
709 if (printable_name_colon
!= NULL
)
711 int colon_index
= printable_name_colon
- info
->printable_name
;
712 if (strncasecmp (string
, info
->printable_name
, colon_index
) == 0
713 && strcasecmp (string
+ colon_index
,
714 info
->printable_name
+ colon_index
+ 1) == 0)
718 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
719 attempt to match just <mach>, it could be ambigious. This test
720 is left until later. */
722 /* NOTE: The below is retained for compatibility only. Please do not
725 /* See how much of the supplied string matches with the
726 architecture, eg the string m68k:68020 would match the 68k entry
727 up to the :, then we get left with the machine number */
729 for (ptr_src
= string
, ptr_tst
= info
->arch_name
;
730 *ptr_src
&& *ptr_tst
;
731 ptr_src
++, ptr_tst
++)
733 if (*ptr_src
!= *ptr_tst
) break;
736 /* Chewed up as much of the architecture as will match, skip any
743 /* nothing more, then only keep this one if it is the default
744 machine for this architecture */
745 return info
->the_default
;
749 while (isdigit ((unsigned char) *ptr_src
))
751 number
= number
* 10 + *ptr_src
- '0';
755 /* NOTE: The below is retained for compatibility only.
756 PLEASE DO NOT ADD TO THIS CODE. */
760 /* FIXME: These are needed to parse IEEE objects. */
762 arch
= bfd_arch_m68k
;
763 number
= bfd_mach_m68000
;
766 arch
= bfd_arch_m68k
;
767 number
= bfd_mach_m68010
;
770 arch
= bfd_arch_m68k
;
771 number
= bfd_mach_m68020
;
774 arch
= bfd_arch_m68k
;
775 number
= bfd_mach_m68030
;
778 arch
= bfd_arch_m68k
;
779 number
= bfd_mach_m68040
;
782 arch
= bfd_arch_m68k
;
783 number
= bfd_mach_m68060
;
786 arch
= bfd_arch_m68k
;
787 number
= bfd_mach_cpu32
;
791 arch
= bfd_arch_we32k
;
795 arch
= bfd_arch_mips
;
796 number
= bfd_mach_mips3000
;
800 arch
= bfd_arch_mips
;
801 number
= bfd_mach_mips4000
;
805 arch
= bfd_arch_rs6000
;
812 if (arch
!= info
->arch
)
815 if (number
!= info
->mach
)
827 const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
830 Return the architecture info struct in @var{abfd}.
833 const bfd_arch_info_type
*
834 bfd_get_arch_info (abfd
)
837 return abfd
->arch_info
;
846 const bfd_arch_info_type *bfd_lookup_arch
847 (enum bfd_architecture
849 unsigned long machine);
852 Look for the architecure info structure which matches the
853 arguments @var{arch} and @var{machine}. A machine of 0 matches the
854 machine/architecture structure which marks itself as the
858 const bfd_arch_info_type
*
859 bfd_lookup_arch (arch
, machine
)
860 enum bfd_architecture arch
;
861 unsigned long machine
;
863 const bfd_arch_info_type
* const *app
, *ap
;
865 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
867 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
870 && (ap
->mach
== machine
871 || (machine
== 0 && ap
->the_default
)))
882 bfd_printable_arch_mach
885 const char *bfd_printable_arch_mach
886 (enum bfd_architecture arch, unsigned long machine);
889 Return a printable string representing the architecture and
892 This routine is depreciated.
896 bfd_printable_arch_mach (arch
, machine
)
897 enum bfd_architecture arch
;
898 unsigned long machine
;
900 const bfd_arch_info_type
* ap
= bfd_lookup_arch (arch
, machine
);
903 return ap
->printable_name
;
912 int bfd_octets_per_byte(bfd *abfd);
915 Return the number of octets (8-bit quantities) per target byte
916 (minimum addressable unit). In most cases, this will be one, but some
917 DSP targets have 16, 32, or even 48 bits per byte.
922 bfd_octets_per_byte (abfd
)
925 return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd
),
926 bfd_get_mach (abfd
));
931 bfd_arch_mach_octets_per_byte
934 int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
935 unsigned long machine);
938 See bfd_octets_per_byte.
940 This routine is provided for those cases where a bfd * is not
945 bfd_arch_mach_octets_per_byte (arch
, mach
)
946 enum bfd_architecture arch
;
949 const bfd_arch_info_type
* ap
= bfd_lookup_arch (arch
, mach
);
952 return ap
->bits_per_byte
/ 8;