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 . bfd_arch_d10v, {* Mitsubishi D10V *}
125 . {* start-sanitize-d30v *}
126 . bfd_arch_d30v, {* Mitsubishi D30V *}
127 . {* end-sanitize-d30v *}
128 . bfd_arch_z8k, {* Zilog Z8000 *}
129 .#define bfd_mach_z8001 1
130 .#define bfd_mach_z8002 2
131 . bfd_arch_h8500, {* Hitachi H8/500 *}
132 . bfd_arch_sh, {* Hitachi SH *}
133 . bfd_arch_alpha, {* Dec Alpha *}
134 . bfd_arch_arm, {* Advanced Risc Machines ARM *}
135 .#define bfd_mach_arm_2 1
136 .#define bfd_mach_arm_2a 2
137 .#define bfd_mach_arm_3 3
138 .#define bfd_mach_arm_3M 4
139 .#define bfd_mach_arm_4 5
140 .#define bfd_mach_arm_4T 6
141 . bfd_arch_ns32k, {* National Semiconductors ns32000 *}
142 . bfd_arch_w65, {* WDC 65816 *}
143 . {* start-sanitize-tic80 *}
144 . bfd_arch_tic80, {* TI TMS320c80 (MVP) *}
145 . {* end-sanitize-tic80 *}
146 . {* start-sanitize-v850 *}
147 . bfd_arch_v850, {* NEC V850 *}
148 . {* start-sanitize-v850e *}
149 #define bfd_mach_v850e 'E'
150 . {* end-sanitize-v850e *}
151 . {* start-sanitize-v850eq *}
152 #define bfd_mach_v850eq 'Q'
153 . {* end-sanitize-v850eq *}
154 . {* end-sanitize-v850 *}
155 . bfd_arch_arc, {* Argonaut RISC Core *}
156 .#define bfd_mach_arc_base 0
157 . bfd_arch_m32r, {* Mitsubishi M32R/D *}
158 . bfd_arch_mn10200, {* Matsushita MN10200 *}
159 . bfd_arch_mn10300, {* Matsushita MN10300 *}
172 This structure contains information on architectures for use
176 .typedef struct bfd_arch_info
179 . int bits_per_address;
181 . enum bfd_architecture arch;
182 . unsigned long mach;
183 . const char *arch_name;
184 . const char *printable_name;
185 . unsigned int section_align_power;
186 . {* true if this is the default machine for the architecture *}
187 . boolean the_default;
188 . const struct bfd_arch_info * (*compatible)
189 . PARAMS ((const struct bfd_arch_info *a,
190 . const struct bfd_arch_info *b));
192 . boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
194 . const struct bfd_arch_info *next;
195 .} bfd_arch_info_type;
198 extern const bfd_arch_info_type bfd_a29k_arch
;
199 extern const bfd_arch_info_type bfd_alpha_arch
;
200 extern const bfd_arch_info_type bfd_arc_arch
;
201 extern const bfd_arch_info_type bfd_arm_arch
;
202 extern const bfd_arch_info_type bfd_d10v_arch
;
203 /* start-sanitize-d30v */
204 extern const bfd_arch_info_type bfd_d30v_arch
;
205 /* end-sanitize-d30v */
206 extern const bfd_arch_info_type bfd_h8300_arch
;
207 extern const bfd_arch_info_type bfd_h8500_arch
;
208 extern const bfd_arch_info_type bfd_hppa_arch
;
209 extern const bfd_arch_info_type bfd_i386_arch
;
210 extern const bfd_arch_info_type bfd_i860_arch
;
211 extern const bfd_arch_info_type bfd_i960_arch
;
212 extern const bfd_arch_info_type bfd_m32r_arch
;
213 extern const bfd_arch_info_type bfd_m68k_arch
;
214 extern const bfd_arch_info_type bfd_m88k_arch
;
215 extern const bfd_arch_info_type bfd_mips_arch
;
216 extern const bfd_arch_info_type bfd_mn10200_arch
;
217 extern const bfd_arch_info_type bfd_mn10300_arch
;
218 extern const bfd_arch_info_type bfd_powerpc_arch
;
219 extern const bfd_arch_info_type bfd_rs6000_arch
;
220 extern const bfd_arch_info_type bfd_sh_arch
;
221 extern const bfd_arch_info_type bfd_sparc_arch
;
222 /* start-sanitize-tic80 */
223 extern const bfd_arch_info_type bfd_tic80_arch
;
224 /* end-sanitize-tic80 */
225 extern const bfd_arch_info_type bfd_vax_arch
;
226 extern const bfd_arch_info_type bfd_we32k_arch
;
227 extern const bfd_arch_info_type bfd_z8k_arch
;
228 extern const bfd_arch_info_type bfd_ns32k_arch
;
229 extern const bfd_arch_info_type bfd_w65_arch
;
230 /* start-sanitize-v850 */
231 extern const bfd_arch_info_type bfd_v850_arch
;
232 /* end-sanitize-v850 */
234 static const bfd_arch_info_type
* const bfd_archures_list
[] =
236 #ifdef SELECT_ARCHITECTURES
237 SELECT_ARCHITECTURES
,
244 /* start-sanitize-d30v */
246 /* end-sanitize-d30v */
263 /* start-sanitize-tic80 */
265 /* end-sanitize-tic80 */
271 /* start-sanitize-v850*/
273 /* end-sanitize-v850 */
283 const char *bfd_printable_name(bfd *abfd);
286 Return a printable string representing the architecture and machine
287 from the pointer to the architecture info structure.
292 bfd_printable_name (abfd
)
295 return abfd
->arch_info
->printable_name
;
305 const bfd_arch_info_type *bfd_scan_arch(const char *string);
308 Figure out if BFD supports any cpu which could be described with
309 the name @var{string}. Return a pointer to an <<arch_info>>
310 structure if a machine is found, otherwise NULL.
314 const bfd_arch_info_type
*
315 bfd_scan_arch (string
)
318 const bfd_arch_info_type
* const *app
, *ap
;
320 /* Look through all the installed architectures */
321 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
323 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
325 if (ap
->scan (ap
, string
))
337 bfd_arch_get_compatible
340 const bfd_arch_info_type *bfd_arch_get_compatible(
345 Determine whether two BFDs'
346 architectures and machine types are compatible. Calculates
347 the lowest common denominator between the two architectures
348 and machine types implied by the BFDs and returns a pointer to
349 an <<arch_info>> structure describing the compatible machine.
352 const bfd_arch_info_type
*
353 bfd_arch_get_compatible (abfd
, bbfd
)
357 /* If either architecture is unknown, then all we can do is assume
358 the user knows what he's doing. */
359 if (abfd
->arch_info
->arch
== bfd_arch_unknown
)
360 return bbfd
->arch_info
;
361 if (bbfd
->arch_info
->arch
== bfd_arch_unknown
)
362 return abfd
->arch_info
;
364 /* Otherwise architecture-specific code has to decide. */
365 return abfd
->arch_info
->compatible (abfd
->arch_info
, bbfd
->arch_info
);
371 bfd_default_arch_struct
374 The <<bfd_default_arch_struct>> is an item of
375 <<bfd_arch_info_type>> which has been initialized to a fairly
376 generic state. A BFD starts life by pointing to this
377 structure, until the correct back end has determined the real
378 architecture of the file.
380 .extern const bfd_arch_info_type bfd_default_arch_struct;
384 const bfd_arch_info_type bfd_default_arch_struct
=
386 32,32,8,bfd_arch_unknown
,0,"unknown","unknown",2,true,
387 bfd_default_compatible
,
397 void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
400 Set the architecture info of @var{abfd} to @var{arg}.
404 bfd_set_arch_info (abfd
, arg
)
406 const bfd_arch_info_type
*arg
;
408 abfd
->arch_info
= arg
;
413 bfd_default_set_arch_mach
416 boolean bfd_default_set_arch_mach(bfd *abfd,
417 enum bfd_architecture arch,
421 Set the architecture and machine type in BFD @var{abfd}
422 to @var{arch} and @var{mach}. Find the correct
423 pointer to a structure and insert it into the <<arch_info>>
428 bfd_default_set_arch_mach (abfd
, arch
, mach
)
430 enum bfd_architecture arch
;
433 const bfd_arch_info_type
* const *app
, *ap
;
435 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
437 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
441 || (mach
== 0 && ap
->the_default
)))
443 abfd
->arch_info
= ap
;
449 abfd
->arch_info
= &bfd_default_arch_struct
;
450 bfd_set_error (bfd_error_bad_value
);
460 enum bfd_architecture bfd_get_arch(bfd *abfd);
463 Return the enumerated type which describes the BFD @var{abfd}'s
468 enum bfd_architecture
472 return abfd
->arch_info
->arch
;
480 unsigned long bfd_get_mach(bfd *abfd);
483 Return the long type which describes the BFD @var{abfd}'s
491 return abfd
->arch_info
->mach
;
496 bfd_arch_bits_per_byte
499 unsigned int bfd_arch_bits_per_byte(bfd *abfd);
502 Return the number of bits in one of the BFD @var{abfd}'s
503 architecture's bytes.
508 bfd_arch_bits_per_byte (abfd
)
511 return abfd
->arch_info
->bits_per_byte
;
516 bfd_arch_bits_per_address
519 unsigned int bfd_arch_bits_per_address(bfd *abfd);
522 Return the number of bits in one of the BFD @var{abfd}'s
523 architecture's addresses.
527 bfd_arch_bits_per_address (abfd
)
530 return abfd
->arch_info
->bits_per_address
;
536 bfd_default_compatible
539 const bfd_arch_info_type *bfd_default_compatible
540 (const bfd_arch_info_type *a,
541 const bfd_arch_info_type *b);
544 The default function for testing for compatibility.
547 const bfd_arch_info_type
*
548 bfd_default_compatible (a
,b
)
549 const bfd_arch_info_type
*a
;
550 const bfd_arch_info_type
*b
;
552 if (a
->arch
!= b
->arch
)
555 if (a
->mach
> b
->mach
)
558 if (b
->mach
> a
->mach
)
570 boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
573 The default function for working out whether this is an
574 architecture hit and a machine hit.
578 bfd_default_scan (info
, string
)
579 const struct bfd_arch_info
*info
;
584 unsigned long number
;
585 enum bfd_architecture arch
;
587 /* First test for an exact match */
588 if (strcmp (string
, info
->printable_name
) == 0)
591 /* See how much of the supplied string matches with the
592 architecture, eg the string m68k:68020 would match the 68k entry
593 up to the :, then we get left with the machine number */
595 for (ptr_src
= string
, ptr_tst
= info
->arch_name
;
596 *ptr_src
&& *ptr_tst
;
597 ptr_src
++, ptr_tst
++)
599 if (*ptr_src
!= *ptr_tst
) break;
602 /* Chewed up as much of the architecture as will match, skip any
609 /* nothing more, then only keep this one if it is the default
610 machine for this architecture */
611 return info
->the_default
;
615 while (isdigit(*ptr_src
))
617 number
= number
* 10 + *ptr_src
- '0';
628 arch
= bfd_arch_h8300
;
632 arch
= bfd_arch_h8500
;
642 arch
= bfd_arch_m68k
;
649 arch
= bfd_arch_i386
;
653 arch
= bfd_arch_a29k
;
661 arch
= bfd_arch_we32k
;
666 arch
= bfd_arch_i860
;
670 arch
= bfd_arch_i960
;
677 arch
= bfd_arch_mips
;
681 arch
= bfd_arch_rs6000
;
688 if (arch
!= info
->arch
)
691 if (number
!= info
->mach
)
703 const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
706 Return the architecture info struct in @var{abfd}.
709 const bfd_arch_info_type
*
710 bfd_get_arch_info (abfd
)
713 return abfd
->arch_info
;
722 const bfd_arch_info_type *bfd_lookup_arch
723 (enum bfd_architecture
725 unsigned long machine);
728 Look for the architecure info structure which matches the
729 arguments @var{arch} and @var{machine}. A machine of 0 matches the
730 machine/architecture structure which marks itself as the
734 const bfd_arch_info_type
*
735 bfd_lookup_arch (arch
, machine
)
736 enum bfd_architecture arch
;
737 unsigned long machine
;
739 const bfd_arch_info_type
* const *app
, *ap
;
741 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
743 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
746 && (ap
->mach
== machine
747 || (machine
== 0 && ap
->the_default
)))
758 bfd_printable_arch_mach
761 const char *bfd_printable_arch_mach
762 (enum bfd_architecture arch, unsigned long machine);
765 Return a printable string representing the architecture and
768 This routine is depreciated.
772 bfd_printable_arch_mach (arch
, machine
)
773 enum bfd_architecture arch
;
774 unsigned long machine
;
776 const bfd_arch_info_type
*ap
= bfd_lookup_arch (arch
, machine
);
779 return ap
->printable_name
;