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 .#define bfd_mach_sh 0
134 .#define bfd_mach_sh3 0x30
135 .#define bfd_mach_sh3e 0x3e
136 . {* start-sanitize-sh4 *}
137 .#define bfd_mach_sh4 0x40
138 . {* end-sanitize-sh4 *}
139 . bfd_arch_alpha, {* Dec Alpha *}
140 . bfd_arch_arm, {* Advanced Risc Machines ARM *}
141 .#define bfd_mach_arm_2 1
142 .#define bfd_mach_arm_2a 2
143 .#define bfd_mach_arm_3 3
144 .#define bfd_mach_arm_3M 4
145 .#define bfd_mach_arm_4 5
146 .#define bfd_mach_arm_4T 6
147 . bfd_arch_ns32k, {* National Semiconductors ns32000 *}
148 . bfd_arch_w65, {* WDC 65816 *}
149 . {* start-sanitize-tic80 *}
150 . bfd_arch_tic80, {* TI TMS320c80 (MVP) *}
151 . {* end-sanitize-tic80 *}
152 . bfd_arch_v850, {* NEC V850 *}
153 .#define bfd_mach_v850 0
154 . {* start-sanitize-v850e *}
155 .#define bfd_mach_v850e 'E'
156 . {* end-sanitize-v850e *}
157 . {* start-sanitize-v850eq *}
158 .#define bfd_mach_v850eq 'Q'
159 . {* end-sanitize-v850eq *}
160 . bfd_arch_arc, {* Argonaut RISC Core *}
161 .#define bfd_mach_arc_base 0
162 . bfd_arch_m32r, {* Mitsubishi M32R/D *}
163 . bfd_arch_mn10200, {* Matsushita MN10200 *}
164 . bfd_arch_mn10300, {* Matsushita MN10300 *}
177 This structure contains information on architectures for use
181 .typedef struct bfd_arch_info
184 . int bits_per_address;
186 . enum bfd_architecture arch;
187 . unsigned long mach;
188 . const char *arch_name;
189 . const char *printable_name;
190 . unsigned int section_align_power;
191 . {* true if this is the default machine for the architecture *}
192 . boolean the_default;
193 . const struct bfd_arch_info * (*compatible)
194 . PARAMS ((const struct bfd_arch_info *a,
195 . const struct bfd_arch_info *b));
197 . boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
199 . const struct bfd_arch_info *next;
200 .} bfd_arch_info_type;
203 extern const bfd_arch_info_type bfd_a29k_arch
;
204 extern const bfd_arch_info_type bfd_alpha_arch
;
205 extern const bfd_arch_info_type bfd_arc_arch
;
206 extern const bfd_arch_info_type bfd_arm_arch
;
207 extern const bfd_arch_info_type bfd_d10v_arch
;
208 /* start-sanitize-d30v */
209 extern const bfd_arch_info_type bfd_d30v_arch
;
210 /* end-sanitize-d30v */
211 extern const bfd_arch_info_type bfd_h8300_arch
;
212 extern const bfd_arch_info_type bfd_h8500_arch
;
213 extern const bfd_arch_info_type bfd_hppa_arch
;
214 extern const bfd_arch_info_type bfd_i386_arch
;
215 extern const bfd_arch_info_type bfd_i860_arch
;
216 extern const bfd_arch_info_type bfd_i960_arch
;
217 extern const bfd_arch_info_type bfd_m32r_arch
;
218 extern const bfd_arch_info_type bfd_m68k_arch
;
219 extern const bfd_arch_info_type bfd_m88k_arch
;
220 extern const bfd_arch_info_type bfd_mips_arch
;
221 extern const bfd_arch_info_type bfd_mn10200_arch
;
222 extern const bfd_arch_info_type bfd_mn10300_arch
;
223 extern const bfd_arch_info_type bfd_powerpc_arch
;
224 extern const bfd_arch_info_type bfd_rs6000_arch
;
225 extern const bfd_arch_info_type bfd_sh_arch
;
226 extern const bfd_arch_info_type bfd_sparc_arch
;
227 /* start-sanitize-tic80 */
228 extern const bfd_arch_info_type bfd_tic80_arch
;
229 /* end-sanitize-tic80 */
230 extern const bfd_arch_info_type bfd_vax_arch
;
231 extern const bfd_arch_info_type bfd_we32k_arch
;
232 extern const bfd_arch_info_type bfd_z8k_arch
;
233 extern const bfd_arch_info_type bfd_ns32k_arch
;
234 extern const bfd_arch_info_type bfd_w65_arch
;
235 extern const bfd_arch_info_type bfd_v850_arch
;
237 static const bfd_arch_info_type
* const bfd_archures_list
[] =
239 #ifdef SELECT_ARCHITECTURES
240 SELECT_ARCHITECTURES
,
247 /* start-sanitize-d30v */
249 /* end-sanitize-d30v */
266 /* start-sanitize-tic80 */
268 /* end-sanitize-tic80 */
284 const char *bfd_printable_name(bfd *abfd);
287 Return a printable string representing the architecture and machine
288 from the pointer to the architecture info structure.
293 bfd_printable_name (abfd
)
296 return abfd
->arch_info
->printable_name
;
306 const bfd_arch_info_type *bfd_scan_arch(const char *string);
309 Figure out if BFD supports any cpu which could be described with
310 the name @var{string}. Return a pointer to an <<arch_info>>
311 structure if a machine is found, otherwise NULL.
315 const bfd_arch_info_type
*
316 bfd_scan_arch (string
)
319 const bfd_arch_info_type
* const *app
, *ap
;
321 /* Look through all the installed architectures */
322 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
324 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
326 if (ap
->scan (ap
, string
))
338 bfd_arch_get_compatible
341 const bfd_arch_info_type *bfd_arch_get_compatible(
346 Determine whether two BFDs'
347 architectures and machine types are compatible. Calculates
348 the lowest common denominator between the two architectures
349 and machine types implied by the BFDs and returns a pointer to
350 an <<arch_info>> structure describing the compatible machine.
353 const bfd_arch_info_type
*
354 bfd_arch_get_compatible (abfd
, bbfd
)
358 /* If either architecture is unknown, then all we can do is assume
359 the user knows what he's doing. */
360 if (abfd
->arch_info
->arch
== bfd_arch_unknown
)
361 return bbfd
->arch_info
;
362 if (bbfd
->arch_info
->arch
== bfd_arch_unknown
)
363 return abfd
->arch_info
;
365 /* Otherwise architecture-specific code has to decide. */
366 return abfd
->arch_info
->compatible (abfd
->arch_info
, bbfd
->arch_info
);
372 bfd_default_arch_struct
375 The <<bfd_default_arch_struct>> is an item of
376 <<bfd_arch_info_type>> which has been initialized to a fairly
377 generic state. A BFD starts life by pointing to this
378 structure, until the correct back end has determined the real
379 architecture of the file.
381 .extern const bfd_arch_info_type bfd_default_arch_struct;
385 const bfd_arch_info_type bfd_default_arch_struct
=
387 32,32,8,bfd_arch_unknown
,0,"unknown","unknown",2,true,
388 bfd_default_compatible
,
398 void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
401 Set the architecture info of @var{abfd} to @var{arg}.
405 bfd_set_arch_info (abfd
, arg
)
407 const bfd_arch_info_type
*arg
;
409 abfd
->arch_info
= arg
;
414 bfd_default_set_arch_mach
417 boolean bfd_default_set_arch_mach(bfd *abfd,
418 enum bfd_architecture arch,
422 Set the architecture and machine type in BFD @var{abfd}
423 to @var{arch} and @var{mach}. Find the correct
424 pointer to a structure and insert it into the <<arch_info>>
429 bfd_default_set_arch_mach (abfd
, arch
, mach
)
431 enum bfd_architecture arch
;
434 const bfd_arch_info_type
* const *app
, *ap
;
436 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
438 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
442 || (mach
== 0 && ap
->the_default
)))
444 abfd
->arch_info
= ap
;
450 abfd
->arch_info
= &bfd_default_arch_struct
;
451 bfd_set_error (bfd_error_bad_value
);
461 enum bfd_architecture bfd_get_arch(bfd *abfd);
464 Return the enumerated type which describes the BFD @var{abfd}'s
469 enum bfd_architecture
473 return abfd
->arch_info
->arch
;
481 unsigned long bfd_get_mach(bfd *abfd);
484 Return the long type which describes the BFD @var{abfd}'s
492 return abfd
->arch_info
->mach
;
497 bfd_arch_bits_per_byte
500 unsigned int bfd_arch_bits_per_byte(bfd *abfd);
503 Return the number of bits in one of the BFD @var{abfd}'s
504 architecture's bytes.
509 bfd_arch_bits_per_byte (abfd
)
512 return abfd
->arch_info
->bits_per_byte
;
517 bfd_arch_bits_per_address
520 unsigned int bfd_arch_bits_per_address(bfd *abfd);
523 Return the number of bits in one of the BFD @var{abfd}'s
524 architecture's addresses.
528 bfd_arch_bits_per_address (abfd
)
531 return abfd
->arch_info
->bits_per_address
;
537 bfd_default_compatible
540 const bfd_arch_info_type *bfd_default_compatible
541 (const bfd_arch_info_type *a,
542 const bfd_arch_info_type *b);
545 The default function for testing for compatibility.
548 const bfd_arch_info_type
*
549 bfd_default_compatible (a
,b
)
550 const bfd_arch_info_type
*a
;
551 const bfd_arch_info_type
*b
;
553 if (a
->arch
!= b
->arch
)
556 if (a
->mach
> b
->mach
)
559 if (b
->mach
> a
->mach
)
571 boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
574 The default function for working out whether this is an
575 architecture hit and a machine hit.
579 bfd_default_scan (info
, string
)
580 const struct bfd_arch_info
*info
;
585 unsigned long number
;
586 enum bfd_architecture arch
;
588 /* First test for an exact match */
589 if (strcmp (string
, info
->printable_name
) == 0)
592 /* See how much of the supplied string matches with the
593 architecture, eg the string m68k:68020 would match the 68k entry
594 up to the :, then we get left with the machine number */
596 for (ptr_src
= string
, ptr_tst
= info
->arch_name
;
597 *ptr_src
&& *ptr_tst
;
598 ptr_src
++, ptr_tst
++)
600 if (*ptr_src
!= *ptr_tst
) break;
603 /* Chewed up as much of the architecture as will match, skip any
610 /* nothing more, then only keep this one if it is the default
611 machine for this architecture */
612 return info
->the_default
;
616 while (isdigit(*ptr_src
))
618 number
= number
* 10 + *ptr_src
- '0';
629 arch
= bfd_arch_h8300
;
633 arch
= bfd_arch_h8500
;
643 arch
= bfd_arch_m68k
;
650 arch
= bfd_arch_i386
;
654 arch
= bfd_arch_a29k
;
662 arch
= bfd_arch_we32k
;
667 arch
= bfd_arch_i860
;
671 arch
= bfd_arch_i960
;
678 arch
= bfd_arch_mips
;
682 arch
= bfd_arch_rs6000
;
689 if (arch
!= info
->arch
)
692 if (number
!= info
->mach
)
704 const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
707 Return the architecture info struct in @var{abfd}.
710 const bfd_arch_info_type
*
711 bfd_get_arch_info (abfd
)
714 return abfd
->arch_info
;
723 const bfd_arch_info_type *bfd_lookup_arch
724 (enum bfd_architecture
726 unsigned long machine);
729 Look for the architecure info structure which matches the
730 arguments @var{arch} and @var{machine}. A machine of 0 matches the
731 machine/architecture structure which marks itself as the
735 const bfd_arch_info_type
*
736 bfd_lookup_arch (arch
, machine
)
737 enum bfd_architecture arch
;
738 unsigned long machine
;
740 const bfd_arch_info_type
* const *app
, *ap
;
742 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
744 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
747 && (ap
->mach
== machine
748 || (machine
== 0 && ap
->the_default
)))
759 bfd_printable_arch_mach
762 const char *bfd_printable_arch_mach
763 (enum bfd_architecture arch, unsigned long machine);
766 Return a printable string representing the architecture and
769 This routine is depreciated.
773 bfd_printable_arch_mach (arch
, machine
)
774 enum bfd_architecture arch
;
775 unsigned long machine
;
777 const bfd_arch_info_type
*ap
= bfd_lookup_arch (arch
, machine
);
780 return ap
->printable_name
;