1 /* BFD library support routines for architectures.
2 Copyright (C) 1990, 91-97, 1998 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 . bfd_arch_vax, {* DEC Vax *}
74 . bfd_arch_i960, {* Intel 960 *}
75 . {* The order of the following is important.
76 . lower number indicates a machine type that
77 . only accepts a subset of the instructions
78 . available to machines with higher numbers.
79 . The exception is the "ca", which is
80 . incompatible with all other machines except
83 .#define bfd_mach_i960_core 1
84 .#define bfd_mach_i960_ka_sa 2
85 .#define bfd_mach_i960_kb_sb 3
86 .#define bfd_mach_i960_mc 4
87 .#define bfd_mach_i960_xa 5
88 .#define bfd_mach_i960_ca 6
89 .#define bfd_mach_i960_jx 7
90 .#define bfd_mach_i960_hx 8
92 . bfd_arch_a29k, {* AMD 29000 *}
93 . bfd_arch_sparc, {* SPARC *}
94 .#define bfd_mach_sparc 1
95 .{* The difference between v8plus and v9 is that v9 is a true 64 bit env. *}
96 .#define bfd_mach_sparc_sparclet 2
97 .#define bfd_mach_sparc_sparclite 3
98 .#define bfd_mach_sparc_v8plus 4
99 .#define bfd_mach_sparc_v8plusa 5 {* with ultrasparc add'ns *}
100 .#define bfd_mach_sparc_v9 6
101 .#define bfd_mach_sparc_v9a 7 {* with ultrasparc add'ns *}
102 .{* Nonzero if MACH has the v9 instruction set. *}
103 .#define bfd_mach_sparc_v9_p(mach) \
104 . ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9a)
105 . bfd_arch_mips, {* MIPS Rxxxx *}
106 . {* start-sanitize-tx19 *}
107 .#define bfd_mach_mips1900 1900
108 . {* end-sanitize-tx19 *}
109 .#define bfd_mach_mips3000 3000
110 .#define bfd_mach_mips3900 3900
111 .#define bfd_mach_mips4000 4000
112 .#define bfd_mach_mips4010 4010
113 .#define bfd_mach_mips4100 4100
114 .#define bfd_mach_mips4300 4300
115 .#define bfd_mach_mips4400 4400
116 .#define bfd_mach_mips4600 4600
117 .#define bfd_mach_mips4650 4650
118 . {* start-sanitize-vr4320 *}
119 .#define bfd_mach_mips4320 4320
120 . {* end-sanitize-vr4320 *}
121 . {* start-sanitize-tx49 *}
122 .#define bfd_mach_mips4900 4900
123 . {* end-sanitize-tx49 *}
124 .#define bfd_mach_mips5000 5000
125 . {* start-sanitize-vr5400 *}
126 .#define bfd_mach_mips5400 5400
127 . {* end-sanitize-vr5400 *}
128 . {* start-sanitize-r5900 *}
129 .#define bfd_mach_mips5900 5900
130 . {* end-sanitize-r5900 *}
131 .#define bfd_mach_mips6000 6000
132 .#define bfd_mach_mips8000 8000
133 .#define bfd_mach_mips10000 10000
134 .#define bfd_mach_mips16 16
135 . {* start-sanitize-sky *}
136 . {* The DVP is a machine within the mips architecture. *}
137 .#define bfd_mach_dvp_dma 42000
138 .#define bfd_mach_dvp_vif 42001
139 .#define bfd_mach_dvp_vu 42002
140 .#define bfd_mach_dvp_gif 42003
141 .#define bfd_mach_dvp_p(mach) ((mach) >= 42000 && (mach) <= 42003)
142 . {* end-sanitize-sky *}
143 . bfd_arch_i386, {* Intel 386 *}
144 .#define bfd_mach_i386_i386 0
145 .#define bfd_mach_i386_i8086 1
146 . bfd_arch_we32k, {* AT&T WE32xxx *}
147 . bfd_arch_tahoe, {* CCI/Harris Tahoe *}
148 . bfd_arch_i860, {* Intel 860 *}
149 . bfd_arch_romp, {* IBM ROMP PC/RT *}
150 . bfd_arch_alliant, {* Alliant *}
151 . bfd_arch_convex, {* Convex *}
152 . bfd_arch_m88k, {* Motorola 88xxx *}
153 . bfd_arch_pyramid, {* Pyramid Technology *}
154 . bfd_arch_h8300, {* Hitachi H8/300 *}
155 .#define bfd_mach_h8300 1
156 .#define bfd_mach_h8300h 2
157 .#define bfd_mach_h8300s 3
158 . bfd_arch_powerpc, {* PowerPC *}
159 . bfd_arch_rs6000, {* IBM RS/6000 *}
160 . bfd_arch_hppa, {* HP PA RISC *}
161 . bfd_arch_d10v, {* Mitsubishi D10V *}
162 . {* start-sanitize-d30v *}
163 . bfd_arch_d30v, {* Mitsubishi D30V *}
164 . {* end-sanitize-d30v *}
165 . bfd_arch_z8k, {* Zilog Z8000 *}
166 .#define bfd_mach_z8001 1
167 .#define bfd_mach_z8002 2
168 . bfd_arch_h8500, {* Hitachi H8/500 *}
169 . bfd_arch_sh, {* Hitachi SH *}
170 .#define bfd_mach_sh 0
171 .#define bfd_mach_sh3 0x30
172 .#define bfd_mach_sh3e 0x3e
173 . {* start-sanitize-sh4 *}
174 .#define bfd_mach_sh4 0x40
175 . {* end-sanitize-sh4 *}
176 . bfd_arch_alpha, {* Dec Alpha *}
177 . bfd_arch_arm, {* Advanced Risc Machines ARM *}
178 .#define bfd_mach_arm_2 1
179 .#define bfd_mach_arm_2a 2
180 .#define bfd_mach_arm_3 3
181 .#define bfd_mach_arm_3M 4
182 .#define bfd_mach_arm_4 5
183 .#define bfd_mach_arm_4T 6
184 . bfd_arch_ns32k, {* National Semiconductors ns32000 *}
185 . bfd_arch_w65, {* WDC 65816 *}
186 . bfd_arch_tic30, {* Texas Instruments TMS320C30 *}
187 . {* start-sanitize-tic80 *}
188 . bfd_arch_tic80, {* TI TMS320c80 (MVP) *}
189 . {* end-sanitize-tic80 *}
190 . bfd_arch_v850, {* NEC V850 *}
191 .#define bfd_mach_v850 0
192 . {* start-sanitize-v850e *}
193 .#define bfd_mach_v850e 'E'
194 .#define bfd_mach_v850ea 'A'
195 . {* end-sanitize-v850e *}
196 . bfd_arch_arc, {* Argonaut RISC Core *}
197 .#define bfd_mach_arc_base 0
198 . bfd_arch_m32r, {* Mitsubishi M32R/D *}
199 .#define bfd_mach_m32r 0 {* backwards compatibility *}
200 . {* start-sanitize-m32rx *}
201 .#define bfd_mach_m32rx 'x'
202 . {* end-sanitize-m32rx *}
203 . bfd_arch_mn10200, {* Matsushita MN10200 *}
204 . bfd_arch_mn10300, {* Matsushita MN10300 *}
217 This structure contains information on architectures for use
221 .typedef struct bfd_arch_info
224 . int bits_per_address;
226 . enum bfd_architecture arch;
227 . unsigned long mach;
228 . const char *arch_name;
229 . const char *printable_name;
230 . unsigned int section_align_power;
231 . {* true if this is the default machine for the architecture *}
232 . boolean the_default;
233 . const struct bfd_arch_info * (*compatible)
234 . PARAMS ((const struct bfd_arch_info *a,
235 . const struct bfd_arch_info *b));
237 . boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
239 . const struct bfd_arch_info *next;
240 .} bfd_arch_info_type;
243 extern const bfd_arch_info_type bfd_a29k_arch
;
244 extern const bfd_arch_info_type bfd_alpha_arch
;
245 extern const bfd_arch_info_type bfd_arc_arch
;
246 extern const bfd_arch_info_type bfd_arm_arch
;
247 extern const bfd_arch_info_type bfd_d10v_arch
;
248 /* start-sanitize-d30v */
249 extern const bfd_arch_info_type bfd_d30v_arch
;
250 /* end-sanitize-d30v */
251 extern const bfd_arch_info_type bfd_h8300_arch
;
252 extern const bfd_arch_info_type bfd_h8500_arch
;
253 extern const bfd_arch_info_type bfd_hppa_arch
;
254 extern const bfd_arch_info_type bfd_i386_arch
;
255 extern const bfd_arch_info_type bfd_i860_arch
;
256 extern const bfd_arch_info_type bfd_i960_arch
;
257 extern const bfd_arch_info_type bfd_m32r_arch
;
258 extern const bfd_arch_info_type bfd_m68k_arch
;
259 extern const bfd_arch_info_type bfd_m88k_arch
;
260 extern const bfd_arch_info_type bfd_mips_arch
;
261 extern const bfd_arch_info_type bfd_mn10200_arch
;
262 extern const bfd_arch_info_type bfd_mn10300_arch
;
263 extern const bfd_arch_info_type bfd_powerpc_arch
;
264 extern const bfd_arch_info_type bfd_rs6000_arch
;
265 extern const bfd_arch_info_type bfd_sh_arch
;
266 extern const bfd_arch_info_type bfd_sparc_arch
;
267 extern const bfd_arch_info_type bfd_tic30_arch
;
268 /* start-sanitize-tic80 */
269 extern const bfd_arch_info_type bfd_tic80_arch
;
270 /* end-sanitize-tic80 */
271 extern const bfd_arch_info_type bfd_vax_arch
;
272 extern const bfd_arch_info_type bfd_we32k_arch
;
273 extern const bfd_arch_info_type bfd_z8k_arch
;
274 extern const bfd_arch_info_type bfd_ns32k_arch
;
275 extern const bfd_arch_info_type bfd_w65_arch
;
276 extern const bfd_arch_info_type bfd_v850_arch
;
278 static const bfd_arch_info_type
* const bfd_archures_list
[] =
280 #ifdef SELECT_ARCHITECTURES
281 SELECT_ARCHITECTURES
,
288 /* start-sanitize-d30v */
290 /* end-sanitize-d30v */
308 /* start-sanitize-tic80 */
310 /* end-sanitize-tic80 */
326 const char *bfd_printable_name(bfd *abfd);
329 Return a printable string representing the architecture and machine
330 from the pointer to the architecture info structure.
335 bfd_printable_name (abfd
)
338 return abfd
->arch_info
->printable_name
;
348 const bfd_arch_info_type *bfd_scan_arch(const char *string);
351 Figure out if BFD supports any cpu which could be described with
352 the name @var{string}. Return a pointer to an <<arch_info>>
353 structure if a machine is found, otherwise NULL.
357 const bfd_arch_info_type
*
358 bfd_scan_arch (string
)
361 const bfd_arch_info_type
* const *app
, *ap
;
363 /* Look through all the installed architectures */
364 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
366 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
368 if (ap
->scan (ap
, string
))
383 const char **bfd_arch_list(void);
386 Return a freshly malloced NULL-terminated vector of the names
387 of all the valid BFD architectures. Do not modify the names.
395 const char **name_ptr
;
396 const char **name_list
;
397 const bfd_arch_info_type
* const *app
;
399 /* Determine the number of architectures */
401 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
403 const bfd_arch_info_type
*ap
;
404 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
410 name_list
= (CONST
char **)
411 bfd_malloc ((vec_length
+ 1) * sizeof (char **));
412 if (name_list
== NULL
)
415 /* Point the list at each of the names */
416 name_ptr
= name_list
;
417 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
419 const bfd_arch_info_type
*ap
;
420 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
422 *name_ptr
= ap
->printable_name
;
435 bfd_arch_get_compatible
438 const bfd_arch_info_type *bfd_arch_get_compatible(
443 Determine whether two BFDs'
444 architectures and machine types are compatible. Calculates
445 the lowest common denominator between the two architectures
446 and machine types implied by the BFDs and returns a pointer to
447 an <<arch_info>> structure describing the compatible machine.
450 const bfd_arch_info_type
*
451 bfd_arch_get_compatible (abfd
, bbfd
)
455 /* If either architecture is unknown, then all we can do is assume
456 the user knows what he's doing. */
457 if (abfd
->arch_info
->arch
== bfd_arch_unknown
)
458 return bbfd
->arch_info
;
459 if (bbfd
->arch_info
->arch
== bfd_arch_unknown
)
460 return abfd
->arch_info
;
462 /* Otherwise architecture-specific code has to decide. */
463 return abfd
->arch_info
->compatible (abfd
->arch_info
, bbfd
->arch_info
);
469 bfd_default_arch_struct
472 The <<bfd_default_arch_struct>> is an item of
473 <<bfd_arch_info_type>> which has been initialized to a fairly
474 generic state. A BFD starts life by pointing to this
475 structure, until the correct back end has determined the real
476 architecture of the file.
478 .extern const bfd_arch_info_type bfd_default_arch_struct;
482 const bfd_arch_info_type bfd_default_arch_struct
=
484 32,32,8,bfd_arch_unknown
,0,"unknown","unknown",2,true,
485 bfd_default_compatible
,
495 void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
498 Set the architecture info of @var{abfd} to @var{arg}.
502 bfd_set_arch_info (abfd
, arg
)
504 const bfd_arch_info_type
*arg
;
506 abfd
->arch_info
= arg
;
511 bfd_default_set_arch_mach
514 boolean bfd_default_set_arch_mach(bfd *abfd,
515 enum bfd_architecture arch,
519 Set the architecture and machine type in BFD @var{abfd}
520 to @var{arch} and @var{mach}. Find the correct
521 pointer to a structure and insert it into the <<arch_info>>
526 bfd_default_set_arch_mach (abfd
, arch
, mach
)
528 enum bfd_architecture arch
;
531 const bfd_arch_info_type
* const *app
, *ap
;
533 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
535 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
539 || (mach
== 0 && ap
->the_default
)))
541 abfd
->arch_info
= ap
;
547 abfd
->arch_info
= &bfd_default_arch_struct
;
548 bfd_set_error (bfd_error_bad_value
);
558 enum bfd_architecture bfd_get_arch(bfd *abfd);
561 Return the enumerated type which describes the BFD @var{abfd}'s
566 enum bfd_architecture
570 return abfd
->arch_info
->arch
;
578 unsigned long bfd_get_mach(bfd *abfd);
581 Return the long type which describes the BFD @var{abfd}'s
589 return abfd
->arch_info
->mach
;
594 bfd_arch_bits_per_byte
597 unsigned int bfd_arch_bits_per_byte(bfd *abfd);
600 Return the number of bits in one of the BFD @var{abfd}'s
601 architecture's bytes.
606 bfd_arch_bits_per_byte (abfd
)
609 return abfd
->arch_info
->bits_per_byte
;
614 bfd_arch_bits_per_address
617 unsigned int bfd_arch_bits_per_address(bfd *abfd);
620 Return the number of bits in one of the BFD @var{abfd}'s
621 architecture's addresses.
625 bfd_arch_bits_per_address (abfd
)
628 return abfd
->arch_info
->bits_per_address
;
634 bfd_default_compatible
637 const bfd_arch_info_type *bfd_default_compatible
638 (const bfd_arch_info_type *a,
639 const bfd_arch_info_type *b);
642 The default function for testing for compatibility.
645 const bfd_arch_info_type
*
646 bfd_default_compatible (a
,b
)
647 const bfd_arch_info_type
*a
;
648 const bfd_arch_info_type
*b
;
650 if (a
->arch
!= b
->arch
)
653 if (a
->mach
> b
->mach
)
656 if (b
->mach
> a
->mach
)
668 boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
671 The default function for working out whether this is an
672 architecture hit and a machine hit.
676 bfd_default_scan (info
, string
)
677 const struct bfd_arch_info
*info
;
682 unsigned long number
;
683 enum bfd_architecture arch
;
684 const char *printable_name_colon
;
686 /* Exact match of the architecture name (ARCH_NAME) and also the
687 default architecture? */
688 if (strcasecmp (string
, info
->arch_name
) == 0
689 && info
->the_default
)
692 /* Exact match of the machine name (PRINTABLE_NAME)? */
693 if (strcasecmp (string
, info
->printable_name
) == 0)
696 /* Given that printable_name contains no colon, attempt to match:
697 ARCH_NAME [ ":" ] PRINTABLE_NAME? */
698 printable_name_colon
= strchr (info
->printable_name
, ':');
699 if (printable_name_colon
== NULL
)
701 int strlen_arch_name
= strlen (info
->arch_name
);
702 if (strncasecmp (string
, info
->arch_name
, strlen_arch_name
) == 0)
703 if (string
[strlen_arch_name
] == ':')
705 if (strcasecmp (string
+ strlen_arch_name
+ 1,
706 info
->printable_name
) == 0)
711 if (strcasecmp (string
+ strlen_arch_name
,
712 info
->printable_name
) == 0)
717 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
718 Attempt to match: <arch> <mach>? */
719 if (printable_name_colon
!= NULL
)
721 int colon_index
= printable_name_colon
- info
->printable_name
;
722 if (strncasecmp (string
, info
->printable_name
, colon_index
) == 0
723 && strcasecmp (string
+ colon_index
,
724 info
->printable_name
+ colon_index
+ 1) == 0)
728 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
729 attempt to match just <mach>, it could be ambigious. This test
730 is left until later. */
732 /* NOTE: The below is retained for compatibility only. Please do not
735 /* See how much of the supplied string matches with the
736 architecture, eg the string m68k:68020 would match the 68k entry
737 up to the :, then we get left with the machine number */
739 for (ptr_src
= string
, ptr_tst
= info
->arch_name
;
740 *ptr_src
&& *ptr_tst
;
741 ptr_src
++, ptr_tst
++)
743 if (*ptr_src
!= *ptr_tst
) break;
746 /* Chewed up as much of the architecture as will match, skip any
753 /* nothing more, then only keep this one if it is the default
754 machine for this architecture */
755 return info
->the_default
;
759 while (isdigit(*ptr_src
))
761 number
= number
* 10 + *ptr_src
- '0';
765 /* NOTE: The below is retained for compatibility only.
766 PLEASE DO NOT ADD TO THIS CODE. */
777 arch
= bfd_arch_m68k
;
781 arch
= bfd_arch_we32k
;
785 arch
= bfd_arch_mips
;
786 number
= bfd_mach_mips3000
;
790 arch
= bfd_arch_mips
;
791 number
= bfd_mach_mips4000
;
795 arch
= bfd_arch_rs6000
;
802 if (arch
!= info
->arch
)
805 if (number
!= info
->mach
)
817 const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
820 Return the architecture info struct in @var{abfd}.
823 const bfd_arch_info_type
*
824 bfd_get_arch_info (abfd
)
827 return abfd
->arch_info
;
836 const bfd_arch_info_type *bfd_lookup_arch
837 (enum bfd_architecture
839 unsigned long machine);
842 Look for the architecure info structure which matches the
843 arguments @var{arch} and @var{machine}. A machine of 0 matches the
844 machine/architecture structure which marks itself as the
848 const bfd_arch_info_type
*
849 bfd_lookup_arch (arch
, machine
)
850 enum bfd_architecture arch
;
851 unsigned long machine
;
853 const bfd_arch_info_type
* const *app
, *ap
;
855 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
857 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
860 && (ap
->mach
== machine
861 || (machine
== 0 && ap
->the_default
)))
872 bfd_printable_arch_mach
875 const char *bfd_printable_arch_mach
876 (enum bfd_architecture arch, unsigned long machine);
879 Return a printable string representing the architecture and
882 This routine is depreciated.
886 bfd_printable_arch_mach (arch
, machine
)
887 enum bfd_architecture arch
;
888 unsigned long machine
;
890 const bfd_arch_info_type
*ap
= bfd_lookup_arch (arch
, machine
);
893 return ap
->printable_name
;