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
))
341 const char **bfd_arch_list(void);
344 Return a freshly malloced NULL-terminated vector of the names
345 of all the valid BFD architectures. Do not modify the names.
353 const char **name_ptr
;
354 const char **name_list
;
355 const bfd_arch_info_type
* const *app
;
357 /* Determine the number of architectures */
359 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
361 const bfd_arch_info_type
*ap
;
362 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
368 name_list
= (CONST
char **)
369 bfd_malloc ((vec_length
+ 1) * sizeof (char **));
370 if (name_list
== NULL
)
373 /* Point the list at each of the names */
374 name_ptr
= name_list
;
375 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
377 const bfd_arch_info_type
*ap
;
378 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
380 *name_ptr
= ap
->printable_name
;
393 bfd_arch_get_compatible
396 const bfd_arch_info_type *bfd_arch_get_compatible(
401 Determine whether two BFDs'
402 architectures and machine types are compatible. Calculates
403 the lowest common denominator between the two architectures
404 and machine types implied by the BFDs and returns a pointer to
405 an <<arch_info>> structure describing the compatible machine.
408 const bfd_arch_info_type
*
409 bfd_arch_get_compatible (abfd
, bbfd
)
413 /* If either architecture is unknown, then all we can do is assume
414 the user knows what he's doing. */
415 if (abfd
->arch_info
->arch
== bfd_arch_unknown
)
416 return bbfd
->arch_info
;
417 if (bbfd
->arch_info
->arch
== bfd_arch_unknown
)
418 return abfd
->arch_info
;
420 /* Otherwise architecture-specific code has to decide. */
421 return abfd
->arch_info
->compatible (abfd
->arch_info
, bbfd
->arch_info
);
427 bfd_default_arch_struct
430 The <<bfd_default_arch_struct>> is an item of
431 <<bfd_arch_info_type>> which has been initialized to a fairly
432 generic state. A BFD starts life by pointing to this
433 structure, until the correct back end has determined the real
434 architecture of the file.
436 .extern const bfd_arch_info_type bfd_default_arch_struct;
440 const bfd_arch_info_type bfd_default_arch_struct
=
442 32,32,8,bfd_arch_unknown
,0,"unknown","unknown",2,true,
443 bfd_default_compatible
,
453 void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
456 Set the architecture info of @var{abfd} to @var{arg}.
460 bfd_set_arch_info (abfd
, arg
)
462 const bfd_arch_info_type
*arg
;
464 abfd
->arch_info
= arg
;
469 bfd_default_set_arch_mach
472 boolean bfd_default_set_arch_mach(bfd *abfd,
473 enum bfd_architecture arch,
477 Set the architecture and machine type in BFD @var{abfd}
478 to @var{arch} and @var{mach}. Find the correct
479 pointer to a structure and insert it into the <<arch_info>>
484 bfd_default_set_arch_mach (abfd
, arch
, mach
)
486 enum bfd_architecture arch
;
489 const bfd_arch_info_type
* const *app
, *ap
;
491 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
493 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
497 || (mach
== 0 && ap
->the_default
)))
499 abfd
->arch_info
= ap
;
505 abfd
->arch_info
= &bfd_default_arch_struct
;
506 bfd_set_error (bfd_error_bad_value
);
516 enum bfd_architecture bfd_get_arch(bfd *abfd);
519 Return the enumerated type which describes the BFD @var{abfd}'s
524 enum bfd_architecture
528 return abfd
->arch_info
->arch
;
536 unsigned long bfd_get_mach(bfd *abfd);
539 Return the long type which describes the BFD @var{abfd}'s
547 return abfd
->arch_info
->mach
;
552 bfd_arch_bits_per_byte
555 unsigned int bfd_arch_bits_per_byte(bfd *abfd);
558 Return the number of bits in one of the BFD @var{abfd}'s
559 architecture's bytes.
564 bfd_arch_bits_per_byte (abfd
)
567 return abfd
->arch_info
->bits_per_byte
;
572 bfd_arch_bits_per_address
575 unsigned int bfd_arch_bits_per_address(bfd *abfd);
578 Return the number of bits in one of the BFD @var{abfd}'s
579 architecture's addresses.
583 bfd_arch_bits_per_address (abfd
)
586 return abfd
->arch_info
->bits_per_address
;
592 bfd_default_compatible
595 const bfd_arch_info_type *bfd_default_compatible
596 (const bfd_arch_info_type *a,
597 const bfd_arch_info_type *b);
600 The default function for testing for compatibility.
603 const bfd_arch_info_type
*
604 bfd_default_compatible (a
,b
)
605 const bfd_arch_info_type
*a
;
606 const bfd_arch_info_type
*b
;
608 if (a
->arch
!= b
->arch
)
611 if (a
->mach
> b
->mach
)
614 if (b
->mach
> a
->mach
)
626 boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
629 The default function for working out whether this is an
630 architecture hit and a machine hit.
634 bfd_default_scan (info
, string
)
635 const struct bfd_arch_info
*info
;
640 unsigned long number
;
641 enum bfd_architecture arch
;
642 const char *printable_name_colon
;
644 /* Exact match of the architecture name (ARCH_NAME) and also the
645 default architecture? */
646 if (strcasecmp (string
, info
->arch_name
) == 0
647 && info
->the_default
)
650 /* Exact match of the machine name (PRINTABLE_NAME)? */
651 if (strcasecmp (string
, info
->printable_name
) == 0)
654 /* Given that printable_name contains no colon, attempt to match:
655 ARCH_NAME [ ":" ] PRINTABLE_NAME? */
656 printable_name_colon
= strchr (info
->printable_name
, ':');
657 if (printable_name_colon
== NULL
)
659 int strlen_arch_name
= strlen (info
->arch_name
);
660 if (strncasecmp (string
, info
->arch_name
, strlen_arch_name
) == 0)
661 if (string
[strlen_arch_name
] == ':')
663 if (strcasecmp (string
+ strlen_arch_name
+ 1,
664 info
->printable_name
) == 0)
669 if (strcasecmp (string
+ strlen_arch_name
,
670 info
->printable_name
) == 0)
675 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
676 Attempt to match: <arch> <mach>? */
677 if (printable_name_colon
!= NULL
)
679 int colon_index
= printable_name_colon
- info
->printable_name
;
680 if (strncasecmp (string
, info
->printable_name
, colon_index
) == 0
681 && strcasecmp (string
+ colon_index
,
682 info
->printable_name
+ colon_index
+ 1) == 0)
686 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
687 attempt to match just <mach>, it could be ambigious. This test
688 is left until later. */
690 /* NOTE: The below is retained for compatibility only. Please do not
693 /* See how much of the supplied string matches with the
694 architecture, eg the string m68k:68020 would match the 68k entry
695 up to the :, then we get left with the machine number */
697 for (ptr_src
= string
, ptr_tst
= info
->arch_name
;
698 *ptr_src
&& *ptr_tst
;
699 ptr_src
++, ptr_tst
++)
701 if (*ptr_src
!= *ptr_tst
) break;
704 /* Chewed up as much of the architecture as will match, skip any
711 /* nothing more, then only keep this one if it is the default
712 machine for this architecture */
713 return info
->the_default
;
717 while (isdigit(*ptr_src
))
719 number
= number
* 10 + *ptr_src
- '0';
723 /* NOTE: The below is retained for compatibility only. Please do
724 not add to this code. */
735 arch
= bfd_arch_m68k
;
739 arch
= bfd_arch_we32k
;
744 arch
= bfd_arch_mips
;
748 arch
= bfd_arch_rs6000
;
755 if (arch
!= info
->arch
)
758 if (number
!= info
->mach
)
770 const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
773 Return the architecture info struct in @var{abfd}.
776 const bfd_arch_info_type
*
777 bfd_get_arch_info (abfd
)
780 return abfd
->arch_info
;
789 const bfd_arch_info_type *bfd_lookup_arch
790 (enum bfd_architecture
792 unsigned long machine);
795 Look for the architecure info structure which matches the
796 arguments @var{arch} and @var{machine}. A machine of 0 matches the
797 machine/architecture structure which marks itself as the
801 const bfd_arch_info_type
*
802 bfd_lookup_arch (arch
, machine
)
803 enum bfd_architecture arch
;
804 unsigned long machine
;
806 const bfd_arch_info_type
* const *app
, *ap
;
808 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
810 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
813 && (ap
->mach
== machine
814 || (machine
== 0 && ap
->the_default
)))
825 bfd_printable_arch_mach
828 const char *bfd_printable_arch_mach
829 (enum bfd_architecture arch, unsigned long machine);
832 Return a printable string representing the architecture and
835 This routine is depreciated.
839 bfd_printable_arch_mach (arch
, machine
)
840 enum bfd_architecture arch
;
841 unsigned long machine
;
843 const bfd_arch_info_type
*ap
= bfd_lookup_arch (arch
, machine
);
846 return ap
->printable_name
;