1 /* BFD library support routines for architectures.
2 Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 1997 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 . bfd_arch_i386, {* Intel 386 *}
107 .#define bfd_mach_i386_i386 0
108 .#define bfd_mach_i386_i8086 1
109 . bfd_arch_we32k, {* AT&T WE32xxx *}
110 . bfd_arch_tahoe, {* CCI/Harris Tahoe *}
111 . bfd_arch_i860, {* Intel 860 *}
112 . bfd_arch_romp, {* IBM ROMP PC/RT *}
113 . bfd_arch_alliant, {* Alliant *}
114 . bfd_arch_convex, {* Convex *}
115 . bfd_arch_m88k, {* Motorola 88xxx *}
116 . bfd_arch_pyramid, {* Pyramid Technology *}
117 . bfd_arch_h8300, {* Hitachi H8/300 *}
118 .#define bfd_mach_h8300 1
119 .#define bfd_mach_h8300h 2
120 .#define bfd_mach_h8300s 3
121 . bfd_arch_powerpc, {* PowerPC *}
122 . bfd_arch_rs6000, {* IBM RS/6000 *}
123 . bfd_arch_hppa, {* HP PA RISC *}
124 . {* start-sanitize-d10v *}
125 . bfd_arch_d10v, {* Mitsubishi D10V *}
126 . {* end-sanitize-d10v *}
127 . {* start-sanitize-d30v *}
128 . bfd_arch_d30v, {* Mitsubishi D30V *}
129 . {* end-sanitize-d30v *}
130 . bfd_arch_z8k, {* Zilog Z8000 *}
131 .#define bfd_mach_z8001 1
132 .#define bfd_mach_z8002 2
133 . bfd_arch_h8500, {* Hitachi H8/500 *}
134 . bfd_arch_sh, {* Hitachi SH *}
135 . bfd_arch_alpha, {* Dec Alpha *}
136 . bfd_arch_arm, {* Advanced Risc Machines ARM *}
137 . bfd_arch_ns32k, {* National Semiconductors ns32000 *}
138 . bfd_arch_w65, {* WDC 65816 *}
139 . {* start-sanitize-tic80 *}
140 . bfd_arch_tic80, {* TI TMS320c80 (MVP) *}
141 . {* end-sanitize-tic80 *}
142 . {* start-sanitize-v850 *}
143 . bfd_arch_v850, {* NEC V850 *}
144 . {* end-sanitize-v850 *}
145 . {* start-sanitize-arc *}
146 . bfd_arch_arc, {* Argonaut RISC Core *}
147 .#define bfd_mach_arc_base 0
148 .#define bfd_mach_arc_host 1
149 .#define bfd_mach_arc_graphics 2
150 .#define bfd_mach_arc_audio 3
151 . {* end-sanitize-arc *}
152 . {* start-sanitize-m32r *}
153 . bfd_arch_m32r, {* Mitsubishi M32R *}
154 . {* end-sanitize-m32r *}
155 . bfd_arch_mn10200, {* Matsushita MN10200 *}
156 . bfd_arch_mn10300, {* Matsushita MN10300 *}
169 This structure contains information on architectures for use
173 .typedef struct bfd_arch_info
176 . int bits_per_address;
178 . enum bfd_architecture arch;
179 . unsigned long mach;
180 . const char *arch_name;
181 . const char *printable_name;
182 . unsigned int section_align_power;
183 . {* true if this is the default machine for the architecture *}
184 . boolean the_default;
185 . const struct bfd_arch_info * (*compatible)
186 . PARAMS ((const struct bfd_arch_info *a,
187 . const struct bfd_arch_info *b));
189 . boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
191 . const struct bfd_arch_info *next;
192 .} bfd_arch_info_type;
195 extern const bfd_arch_info_type bfd_a29k_arch
;
196 extern const bfd_arch_info_type bfd_alpha_arch
;
197 /* start-sanitize-arc */
198 extern const bfd_arch_info_type bfd_arc_arch
;
199 /* end-sanitize-arc */
200 extern const bfd_arch_info_type bfd_arm_arch
;
201 /* start-sanitize-d10v */
202 extern const bfd_arch_info_type bfd_d10v_arch
;
203 /* end-sanitize-d10v */
204 /* start-sanitize-d30v */
205 extern const bfd_arch_info_type bfd_d30v_arch
;
206 /* end-sanitize-d30v */
207 extern const bfd_arch_info_type bfd_h8300_arch
;
208 extern const bfd_arch_info_type bfd_h8500_arch
;
209 extern const bfd_arch_info_type bfd_hppa_arch
;
210 extern const bfd_arch_info_type bfd_i386_arch
;
211 extern const bfd_arch_info_type bfd_i860_arch
;
212 extern const bfd_arch_info_type bfd_i960_arch
;
213 /* start-sanitize-m32r */
214 extern const bfd_arch_info_type bfd_m32r_arch
;
215 /* end-sanitize-m32r */
216 extern const bfd_arch_info_type bfd_m68k_arch
;
217 extern const bfd_arch_info_type bfd_m88k_arch
;
218 extern const bfd_arch_info_type bfd_mips_arch
;
219 extern const bfd_arch_info_type bfd_mn10200_arch
;
220 extern const bfd_arch_info_type bfd_mn10300_arch
;
221 extern const bfd_arch_info_type bfd_powerpc_arch
;
222 extern const bfd_arch_info_type bfd_rs6000_arch
;
223 extern const bfd_arch_info_type bfd_sh_arch
;
224 extern const bfd_arch_info_type bfd_sparc_arch
;
225 /* start-sanitize-tic80 */
226 extern const bfd_arch_info_type bfd_tic80_arch
;
227 /* end-sanitize-tic80 */
228 extern const bfd_arch_info_type bfd_vax_arch
;
229 extern const bfd_arch_info_type bfd_we32k_arch
;
230 extern const bfd_arch_info_type bfd_z8k_arch
;
231 extern const bfd_arch_info_type bfd_ns32k_arch
;
232 extern const bfd_arch_info_type bfd_w65_arch
;
233 /* start-sanitize-v850 */
234 extern const bfd_arch_info_type bfd_v850_arch
;
235 /* end-sanitize-v850 */
237 static const bfd_arch_info_type
* const bfd_archures_list
[] =
239 #ifdef SELECT_ARCHITECTURES
240 SELECT_ARCHITECTURES
,
244 /* start-sanitize-arc */
246 /* end-sanitize-arc */
248 /* start-sanitize-d10v */
250 /* end-sanitize-d10v */
251 /* start-sanitize-d30v */
253 /* end-sanitize-d30v */
260 /* start-sanitize-m32r */
262 /* end-sanitize-m32r */
272 /* start-sanitize-tic80 */
274 /* end-sanitize-tic80 */
280 /* start-sanitize-v850*/
282 /* end-sanitize-v850 */
292 const char *bfd_printable_name(bfd *abfd);
295 Return a printable string representing the architecture and machine
296 from the pointer to the architecture info structure.
301 bfd_printable_name (abfd
)
304 return abfd
->arch_info
->printable_name
;
314 const bfd_arch_info_type *bfd_scan_arch(const char *string);
317 Figure out if BFD supports any cpu which could be described with
318 the name @var{string}. Return a pointer to an <<arch_info>>
319 structure if a machine is found, otherwise NULL.
323 const bfd_arch_info_type
*
324 bfd_scan_arch (string
)
327 const bfd_arch_info_type
* const *app
, *ap
;
329 /* Look through all the installed architectures */
330 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
332 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
334 if (ap
->scan (ap
, string
))
346 bfd_arch_get_compatible
349 const bfd_arch_info_type *bfd_arch_get_compatible(
354 Determine whether two BFDs'
355 architectures and machine types are compatible. Calculates
356 the lowest common denominator between the two architectures
357 and machine types implied by the BFDs and returns a pointer to
358 an <<arch_info>> structure describing the compatible machine.
361 const bfd_arch_info_type
*
362 bfd_arch_get_compatible (abfd
, bbfd
)
366 /* If either architecture is unknown, then all we can do is assume
367 the user knows what he's doing. */
368 if (abfd
->arch_info
->arch
== bfd_arch_unknown
)
369 return bbfd
->arch_info
;
370 if (bbfd
->arch_info
->arch
== bfd_arch_unknown
)
371 return abfd
->arch_info
;
373 /* Otherwise architecture-specific code has to decide. */
374 return abfd
->arch_info
->compatible (abfd
->arch_info
, bbfd
->arch_info
);
380 bfd_default_arch_struct
383 The <<bfd_default_arch_struct>> is an item of
384 <<bfd_arch_info_type>> which has been initialized to a fairly
385 generic state. A BFD starts life by pointing to this
386 structure, until the correct back end has determined the real
387 architecture of the file.
389 .extern const bfd_arch_info_type bfd_default_arch_struct;
393 const bfd_arch_info_type bfd_default_arch_struct
=
395 32,32,8,bfd_arch_unknown
,0,"unknown","unknown",2,true,
396 bfd_default_compatible
,
406 void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
409 Set the architecture info of @var{abfd} to @var{arg}.
413 bfd_set_arch_info (abfd
, arg
)
415 const bfd_arch_info_type
*arg
;
417 abfd
->arch_info
= arg
;
422 bfd_default_set_arch_mach
425 boolean bfd_default_set_arch_mach(bfd *abfd,
426 enum bfd_architecture arch,
430 Set the architecture and machine type in BFD @var{abfd}
431 to @var{arch} and @var{mach}. Find the correct
432 pointer to a structure and insert it into the <<arch_info>>
437 bfd_default_set_arch_mach (abfd
, arch
, mach
)
439 enum bfd_architecture arch
;
442 const bfd_arch_info_type
* const *app
, *ap
;
444 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
446 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
450 || (mach
== 0 && ap
->the_default
)))
452 abfd
->arch_info
= ap
;
458 abfd
->arch_info
= &bfd_default_arch_struct
;
459 bfd_set_error (bfd_error_bad_value
);
469 enum bfd_architecture bfd_get_arch(bfd *abfd);
472 Return the enumerated type which describes the BFD @var{abfd}'s
477 enum bfd_architecture
481 return abfd
->arch_info
->arch
;
489 unsigned long bfd_get_mach(bfd *abfd);
492 Return the long type which describes the BFD @var{abfd}'s
500 return abfd
->arch_info
->mach
;
505 bfd_arch_bits_per_byte
508 unsigned int bfd_arch_bits_per_byte(bfd *abfd);
511 Return the number of bits in one of the BFD @var{abfd}'s
512 architecture's bytes.
517 bfd_arch_bits_per_byte (abfd
)
520 return abfd
->arch_info
->bits_per_byte
;
525 bfd_arch_bits_per_address
528 unsigned int bfd_arch_bits_per_address(bfd *abfd);
531 Return the number of bits in one of the BFD @var{abfd}'s
532 architecture's addresses.
536 bfd_arch_bits_per_address (abfd
)
539 return abfd
->arch_info
->bits_per_address
;
545 bfd_default_compatible
548 const bfd_arch_info_type *bfd_default_compatible
549 (const bfd_arch_info_type *a,
550 const bfd_arch_info_type *b);
553 The default function for testing for compatibility.
556 const bfd_arch_info_type
*
557 bfd_default_compatible (a
,b
)
558 const bfd_arch_info_type
*a
;
559 const bfd_arch_info_type
*b
;
561 if (a
->arch
!= b
->arch
)
564 if (a
->mach
> b
->mach
)
567 if (b
->mach
> a
->mach
)
579 boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
582 The default function for working out whether this is an
583 architecture hit and a machine hit.
587 bfd_default_scan (info
, string
)
588 const struct bfd_arch_info
*info
;
593 unsigned long number
;
594 enum bfd_architecture arch
;
596 /* First test for an exact match */
597 if (strcmp (string
, info
->printable_name
) == 0)
600 /* See how much of the supplied string matches with the
601 architecture, eg the string m68k:68020 would match the 68k entry
602 up to the :, then we get left with the machine number */
604 for (ptr_src
= string
, ptr_tst
= info
->arch_name
;
605 *ptr_src
&& *ptr_tst
;
606 ptr_src
++, ptr_tst
++)
608 if (*ptr_src
!= *ptr_tst
) break;
611 /* Chewed up as much of the architecture as will match, skip any
618 /* nothing more, then only keep this one if it is the default
619 machine for this architecture */
620 return info
->the_default
;
624 while (isdigit(*ptr_src
))
626 number
= number
* 10 + *ptr_src
- '0';
637 arch
= bfd_arch_h8300
;
641 arch
= bfd_arch_h8500
;
651 arch
= bfd_arch_m68k
;
658 arch
= bfd_arch_i386
;
662 arch
= bfd_arch_a29k
;
670 arch
= bfd_arch_we32k
;
675 arch
= bfd_arch_i860
;
679 arch
= bfd_arch_i960
;
686 arch
= bfd_arch_mips
;
690 arch
= bfd_arch_rs6000
;
697 if (arch
!= info
->arch
)
700 if (number
!= info
->mach
)
712 const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
715 Return the architecture info struct in @var{abfd}.
718 const bfd_arch_info_type
*
719 bfd_get_arch_info (abfd
)
722 return abfd
->arch_info
;
731 const bfd_arch_info_type *bfd_lookup_arch
732 (enum bfd_architecture
734 unsigned long machine);
737 Look for the architecure info structure which matches the
738 arguments @var{arch} and @var{machine}. A machine of 0 matches the
739 machine/architecture structure which marks itself as the
743 const bfd_arch_info_type
*
744 bfd_lookup_arch (arch
, machine
)
745 enum bfd_architecture arch
;
746 unsigned long machine
;
748 const bfd_arch_info_type
* const *app
, *ap
;
750 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
752 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
755 && (ap
->mach
== machine
756 || (machine
== 0 && ap
->the_default
)))
767 bfd_printable_arch_mach
770 const char *bfd_printable_arch_mach
771 (enum bfd_architecture arch, unsigned long machine);
774 Return a printable string representing the architecture and
777 This routine is depreciated.
781 bfd_printable_arch_mach (arch
, machine
)
782 enum bfd_architecture arch
;
783 unsigned long machine
;
785 const bfd_arch_info_type
*ap
= bfd_lookup_arch (arch
, machine
);
788 return ap
->printable_name
;