1 /* BFD library support routines for architectures.
2 Copyright (C) 1990, 91-98, 1999 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 .#define bfd_mach_m68000 1
74 .#define bfd_mach_m68008 2
75 .#define bfd_mach_m68010 3
76 .#define bfd_mach_m68020 4
77 .#define bfd_mach_m68030 5
78 .#define bfd_mach_m68040 6
79 .#define bfd_mach_m68060 7
80 .#define bfd_mach_cpu32 8
81 . bfd_arch_vax, {* DEC Vax *}
82 . bfd_arch_i960, {* Intel 960 *}
83 . {* The order of the following is important.
84 . lower number indicates a machine type that
85 . only accepts a subset of the instructions
86 . available to machines with higher numbers.
87 . The exception is the "ca", which is
88 . incompatible with all other machines except
91 .#define bfd_mach_i960_core 1
92 .#define bfd_mach_i960_ka_sa 2
93 .#define bfd_mach_i960_kb_sb 3
94 .#define bfd_mach_i960_mc 4
95 .#define bfd_mach_i960_xa 5
96 .#define bfd_mach_i960_ca 6
97 .#define bfd_mach_i960_jx 7
98 .#define bfd_mach_i960_hx 8
100 . bfd_arch_a29k, {* AMD 29000 *}
101 . bfd_arch_sparc, {* SPARC *}
102 .#define bfd_mach_sparc 1
103 .{* The difference between v8plus and v9 is that v9 is a true 64 bit env. *}
104 .#define bfd_mach_sparc_sparclet 2
105 .#define bfd_mach_sparc_sparclite 3
106 .#define bfd_mach_sparc_v8plus 4
107 .#define bfd_mach_sparc_v8plusa 5 {* with ultrasparc add'ns *}
108 .#define bfd_mach_sparc_sparclite_le 6
109 .#define bfd_mach_sparc_v9 7
110 .#define bfd_mach_sparc_v9a 8 {* with ultrasparc add'ns *}
111 .{* Nonzero if MACH has the v9 instruction set. *}
112 .#define bfd_mach_sparc_v9_p(mach) \
113 . ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9a)
114 . bfd_arch_mips, {* MIPS Rxxxx *}
115 .#define bfd_mach_mips3000 3000
116 .#define bfd_mach_mips3900 3900
117 .#define bfd_mach_mips4000 4000
118 .#define bfd_mach_mips4010 4010
119 .#define bfd_mach_mips4100 4100
120 .#define bfd_mach_mips4111 4111
121 .#define bfd_mach_mips4300 4300
122 .#define bfd_mach_mips4400 4400
123 .#define bfd_mach_mips4600 4600
124 .#define bfd_mach_mips4650 4650
125 .#define bfd_mach_mips5000 5000
126 .#define bfd_mach_mips6000 6000
127 .#define bfd_mach_mips8000 8000
128 .#define bfd_mach_mips10000 10000
129 .#define bfd_mach_mips16 16
130 . bfd_arch_i386, {* Intel 386 *}
131 .#define bfd_mach_i386_i386 0
132 .#define bfd_mach_i386_i8086 1
133 .#define bfd_mach_i386_i386_intel_syntax 2
134 . bfd_arch_we32k, {* AT&T WE32xxx *}
135 . bfd_arch_tahoe, {* CCI/Harris Tahoe *}
136 . bfd_arch_i860, {* Intel 860 *}
137 . bfd_arch_romp, {* IBM ROMP PC/RT *}
138 . bfd_arch_alliant, {* Alliant *}
139 . bfd_arch_convex, {* Convex *}
140 . bfd_arch_m88k, {* Motorola 88xxx *}
141 . bfd_arch_pyramid, {* Pyramid Technology *}
142 . bfd_arch_h8300, {* Hitachi H8/300 *}
143 .#define bfd_mach_h8300 1
144 .#define bfd_mach_h8300h 2
145 .#define bfd_mach_h8300s 3
146 . bfd_arch_powerpc, {* PowerPC *}
147 . bfd_arch_rs6000, {* IBM RS/6000 *}
148 . bfd_arch_hppa, {* HP PA RISC *}
149 . bfd_arch_d10v, {* Mitsubishi D10V *}
150 . bfd_arch_d30v, {* Mitsubishi D30V *}
151 . bfd_arch_z8k, {* Zilog Z8000 *}
152 .#define bfd_mach_z8001 1
153 .#define bfd_mach_z8002 2
154 . bfd_arch_h8500, {* Hitachi H8/500 *}
155 . bfd_arch_sh, {* Hitachi SH *}
156 .#define bfd_mach_sh 0
157 .#define bfd_mach_sh3 0x30
158 .#define bfd_mach_sh3e 0x3e
159 . bfd_arch_alpha, {* Dec Alpha *}
160 .#define bfd_mach_alpha_ev4 0x10
161 .#define bfd_mach_alpha_ev5 0x20
162 .#define bfd_mach_alpha_ev6 0x30
163 . bfd_arch_arm, {* Advanced Risc Machines ARM *}
164 .#define bfd_mach_arm_2 1
165 .#define bfd_mach_arm_2a 2
166 .#define bfd_mach_arm_3 3
167 .#define bfd_mach_arm_3M 4
168 .#define bfd_mach_arm_4 5
169 .#define bfd_mach_arm_4T 6
170 .#define bfd_mach_arm_5 7
171 .#define bfd_mach_arm_5T 8
172 . bfd_arch_ns32k, {* National Semiconductors ns32000 *}
173 . bfd_arch_w65, {* WDC 65816 *}
174 . bfd_arch_tic30, {* Texas Instruments TMS320C30 *}
175 . bfd_arch_tic80, {* TI TMS320c80 (MVP) *}
176 . bfd_arch_v850, {* NEC V850 *}
177 .#define bfd_mach_v850 0
178 .#define bfd_mach_v850e 'E'
179 .#define bfd_mach_v850ea 'A'
180 . bfd_arch_arc, {* Argonaut RISC Core *}
181 .#define bfd_mach_arc_base 0
182 . bfd_arch_m32r, {* Mitsubishi M32R/D *}
183 .#define bfd_mach_m32r 0 {* backwards compatibility *}
184 . bfd_arch_mn10200, {* Matsushita MN10200 *}
185 . bfd_arch_mn10300, {* Matsushita MN10300 *}
186 .#define bfd_mach_mn10300 300
188 .#define bfd_mach_fr30 0x46523330
203 This structure contains information on architectures for use
207 .typedef struct bfd_arch_info
210 . int bits_per_address;
212 . enum bfd_architecture arch;
213 . unsigned long mach;
214 . const char *arch_name;
215 . const char *printable_name;
216 . unsigned int section_align_power;
217 . {* true if this is the default machine for the architecture *}
218 . boolean the_default;
219 . const struct bfd_arch_info * (*compatible)
220 . PARAMS ((const struct bfd_arch_info *a,
221 . const struct bfd_arch_info *b));
223 . boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
225 . const struct bfd_arch_info *next;
226 .} bfd_arch_info_type;
229 extern const bfd_arch_info_type bfd_a29k_arch
;
230 extern const bfd_arch_info_type bfd_alpha_arch
;
231 extern const bfd_arch_info_type bfd_arc_arch
;
232 extern const bfd_arch_info_type bfd_arm_arch
;
233 extern const bfd_arch_info_type bfd_d10v_arch
;
234 extern const bfd_arch_info_type bfd_d30v_arch
;
235 extern const bfd_arch_info_type bfd_h8300_arch
;
236 extern const bfd_arch_info_type bfd_h8500_arch
;
237 extern const bfd_arch_info_type bfd_hppa_arch
;
238 extern const bfd_arch_info_type bfd_i386_arch
;
239 extern const bfd_arch_info_type bfd_i860_arch
;
240 extern const bfd_arch_info_type bfd_i960_arch
;
241 extern const bfd_arch_info_type bfd_m32r_arch
;
242 extern const bfd_arch_info_type bfd_m68k_arch
;
243 extern const bfd_arch_info_type bfd_m88k_arch
;
244 extern const bfd_arch_info_type bfd_mips_arch
;
245 extern const bfd_arch_info_type bfd_mn10200_arch
;
246 extern const bfd_arch_info_type bfd_mn10300_arch
;
247 extern const bfd_arch_info_type bfd_powerpc_arch
;
248 extern const bfd_arch_info_type bfd_rs6000_arch
;
249 extern const bfd_arch_info_type bfd_pj_arch
;
250 extern const bfd_arch_info_type bfd_sh_arch
;
251 extern const bfd_arch_info_type bfd_sparc_arch
;
252 extern const bfd_arch_info_type bfd_tic30_arch
;
253 extern const bfd_arch_info_type bfd_tic80_arch
;
254 extern const bfd_arch_info_type bfd_vax_arch
;
255 extern const bfd_arch_info_type bfd_we32k_arch
;
256 extern const bfd_arch_info_type bfd_z8k_arch
;
257 extern const bfd_arch_info_type bfd_ns32k_arch
;
258 extern const bfd_arch_info_type bfd_w65_arch
;
259 extern const bfd_arch_info_type bfd_v850_arch
;
260 extern const bfd_arch_info_type bfd_fr30_arch
;
261 extern const bfd_arch_info_type bfd_mcore_arch
;
263 static const bfd_arch_info_type
* const bfd_archures_list
[] =
265 #ifdef SELECT_ARCHITECTURES
266 SELECT_ARCHITECTURES
,
309 const char *bfd_printable_name(bfd *abfd);
312 Return a printable string representing the architecture and machine
313 from the pointer to the architecture info structure.
318 bfd_printable_name (abfd
)
321 return abfd
->arch_info
->printable_name
;
331 const bfd_arch_info_type *bfd_scan_arch(const char *string);
334 Figure out if BFD supports any cpu which could be described with
335 the name @var{string}. Return a pointer to an <<arch_info>>
336 structure if a machine is found, otherwise NULL.
340 const bfd_arch_info_type
*
341 bfd_scan_arch (string
)
344 const bfd_arch_info_type
* const *app
, *ap
;
346 /* Look through all the installed architectures */
347 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
349 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
351 if (ap
->scan (ap
, string
))
366 const char **bfd_arch_list(void);
369 Return a freshly malloced NULL-terminated vector of the names
370 of all the valid BFD architectures. Do not modify the names.
378 const char **name_ptr
;
379 const char **name_list
;
380 const bfd_arch_info_type
* const *app
;
382 /* Determine the number of architectures */
384 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
386 const bfd_arch_info_type
*ap
;
387 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
393 name_list
= (CONST
char **)
394 bfd_malloc ((vec_length
+ 1) * sizeof (char **));
395 if (name_list
== NULL
)
398 /* Point the list at each of the names */
399 name_ptr
= name_list
;
400 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
402 const bfd_arch_info_type
*ap
;
403 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
405 *name_ptr
= ap
->printable_name
;
418 bfd_arch_get_compatible
421 const bfd_arch_info_type *bfd_arch_get_compatible(
426 Determine whether two BFDs'
427 architectures and machine types are compatible. Calculates
428 the lowest common denominator between the two architectures
429 and machine types implied by the BFDs and returns a pointer to
430 an <<arch_info>> structure describing the compatible machine.
433 const bfd_arch_info_type
*
434 bfd_arch_get_compatible (abfd
, bbfd
)
438 /* If either architecture is unknown, then all we can do is assume
439 the user knows what he's doing. */
440 if (abfd
->arch_info
->arch
== bfd_arch_unknown
)
441 return bbfd
->arch_info
;
442 if (bbfd
->arch_info
->arch
== bfd_arch_unknown
)
443 return abfd
->arch_info
;
445 /* Otherwise architecture-specific code has to decide. */
446 return abfd
->arch_info
->compatible (abfd
->arch_info
, bbfd
->arch_info
);
452 bfd_default_arch_struct
455 The <<bfd_default_arch_struct>> is an item of
456 <<bfd_arch_info_type>> which has been initialized to a fairly
457 generic state. A BFD starts life by pointing to this
458 structure, until the correct back end has determined the real
459 architecture of the file.
461 .extern const bfd_arch_info_type bfd_default_arch_struct;
465 const bfd_arch_info_type bfd_default_arch_struct
=
467 32,32,8,bfd_arch_unknown
,0,"unknown","unknown",2,true,
468 bfd_default_compatible
,
478 void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
481 Set the architecture info of @var{abfd} to @var{arg}.
485 bfd_set_arch_info (abfd
, arg
)
487 const bfd_arch_info_type
*arg
;
489 abfd
->arch_info
= arg
;
494 bfd_default_set_arch_mach
497 boolean bfd_default_set_arch_mach(bfd *abfd,
498 enum bfd_architecture arch,
502 Set the architecture and machine type in BFD @var{abfd}
503 to @var{arch} and @var{mach}. Find the correct
504 pointer to a structure and insert it into the <<arch_info>>
509 bfd_default_set_arch_mach (abfd
, arch
, mach
)
511 enum bfd_architecture arch
;
514 const bfd_arch_info_type
* const *app
, *ap
;
516 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
518 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
522 || (mach
== 0 && ap
->the_default
)))
524 abfd
->arch_info
= ap
;
530 abfd
->arch_info
= &bfd_default_arch_struct
;
531 bfd_set_error (bfd_error_bad_value
);
541 enum bfd_architecture bfd_get_arch(bfd *abfd);
544 Return the enumerated type which describes the BFD @var{abfd}'s
549 enum bfd_architecture
553 return abfd
->arch_info
->arch
;
561 unsigned long bfd_get_mach(bfd *abfd);
564 Return the long type which describes the BFD @var{abfd}'s
572 return abfd
->arch_info
->mach
;
577 bfd_arch_bits_per_byte
580 unsigned int bfd_arch_bits_per_byte(bfd *abfd);
583 Return the number of bits in one of the BFD @var{abfd}'s
584 architecture's bytes.
589 bfd_arch_bits_per_byte (abfd
)
592 return abfd
->arch_info
->bits_per_byte
;
597 bfd_arch_bits_per_address
600 unsigned int bfd_arch_bits_per_address(bfd *abfd);
603 Return the number of bits in one of the BFD @var{abfd}'s
604 architecture's addresses.
608 bfd_arch_bits_per_address (abfd
)
611 return abfd
->arch_info
->bits_per_address
;
617 bfd_default_compatible
620 const bfd_arch_info_type *bfd_default_compatible
621 (const bfd_arch_info_type *a,
622 const bfd_arch_info_type *b);
625 The default function for testing for compatibility.
628 const bfd_arch_info_type
*
629 bfd_default_compatible (a
,b
)
630 const bfd_arch_info_type
*a
;
631 const bfd_arch_info_type
*b
;
633 if (a
->arch
!= b
->arch
)
636 if (a
->mach
> b
->mach
)
639 if (b
->mach
> a
->mach
)
651 boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
654 The default function for working out whether this is an
655 architecture hit and a machine hit.
659 bfd_default_scan (info
, string
)
660 const struct bfd_arch_info
*info
;
665 unsigned long number
;
666 enum bfd_architecture arch
;
667 const char *printable_name_colon
;
669 /* Exact match of the architecture name (ARCH_NAME) and also the
670 default architecture? */
671 if (strcasecmp (string
, info
->arch_name
) == 0
672 && info
->the_default
)
675 /* Exact match of the machine name (PRINTABLE_NAME)? */
676 if (strcasecmp (string
, info
->printable_name
) == 0)
679 /* Given that printable_name contains no colon, attempt to match:
680 ARCH_NAME [ ":" ] PRINTABLE_NAME? */
681 printable_name_colon
= strchr (info
->printable_name
, ':');
682 if (printable_name_colon
== NULL
)
684 int strlen_arch_name
= strlen (info
->arch_name
);
685 if (strncasecmp (string
, info
->arch_name
, strlen_arch_name
) == 0)
687 if (string
[strlen_arch_name
] == ':')
689 if (strcasecmp (string
+ strlen_arch_name
+ 1,
690 info
->printable_name
) == 0)
695 if (strcasecmp (string
+ strlen_arch_name
,
696 info
->printable_name
) == 0)
702 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
703 Attempt to match: <arch> <mach>? */
704 if (printable_name_colon
!= NULL
)
706 int colon_index
= printable_name_colon
- info
->printable_name
;
707 if (strncasecmp (string
, info
->printable_name
, colon_index
) == 0
708 && strcasecmp (string
+ colon_index
,
709 info
->printable_name
+ colon_index
+ 1) == 0)
713 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
714 attempt to match just <mach>, it could be ambigious. This test
715 is left until later. */
717 /* NOTE: The below is retained for compatibility only. Please do not
720 /* See how much of the supplied string matches with the
721 architecture, eg the string m68k:68020 would match the 68k entry
722 up to the :, then we get left with the machine number */
724 for (ptr_src
= string
, ptr_tst
= info
->arch_name
;
725 *ptr_src
&& *ptr_tst
;
726 ptr_src
++, ptr_tst
++)
728 if (*ptr_src
!= *ptr_tst
) break;
731 /* Chewed up as much of the architecture as will match, skip any
738 /* nothing more, then only keep this one if it is the default
739 machine for this architecture */
740 return info
->the_default
;
744 while (isdigit ((unsigned char) *ptr_src
))
746 number
= number
* 10 + *ptr_src
- '0';
750 /* NOTE: The below is retained for compatibility only.
751 PLEASE DO NOT ADD TO THIS CODE. */
755 /* FIXME: These are needed to parse IEEE objects. */
757 arch
= bfd_arch_m68k
;
758 number
= bfd_mach_m68000
;
761 arch
= bfd_arch_m68k
;
762 number
= bfd_mach_m68010
;
765 arch
= bfd_arch_m68k
;
766 number
= bfd_mach_m68020
;
769 arch
= bfd_arch_m68k
;
770 number
= bfd_mach_m68030
;
773 arch
= bfd_arch_m68k
;
774 number
= bfd_mach_m68040
;
777 arch
= bfd_arch_m68k
;
778 number
= bfd_mach_m68060
;
781 arch
= bfd_arch_m68k
;
782 number
= bfd_mach_cpu32
;
786 arch
= bfd_arch_we32k
;
790 arch
= bfd_arch_mips
;
791 number
= bfd_mach_mips3000
;
795 arch
= bfd_arch_mips
;
796 number
= bfd_mach_mips4000
;
800 arch
= bfd_arch_rs6000
;
807 if (arch
!= info
->arch
)
810 if (number
!= info
->mach
)
822 const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
825 Return the architecture info struct in @var{abfd}.
828 const bfd_arch_info_type
*
829 bfd_get_arch_info (abfd
)
832 return abfd
->arch_info
;
841 const bfd_arch_info_type *bfd_lookup_arch
842 (enum bfd_architecture
844 unsigned long machine);
847 Look for the architecure info structure which matches the
848 arguments @var{arch} and @var{machine}. A machine of 0 matches the
849 machine/architecture structure which marks itself as the
853 const bfd_arch_info_type
*
854 bfd_lookup_arch (arch
, machine
)
855 enum bfd_architecture arch
;
856 unsigned long machine
;
858 const bfd_arch_info_type
* const *app
, *ap
;
860 for (app
= bfd_archures_list
; *app
!= NULL
; app
++)
862 for (ap
= *app
; ap
!= NULL
; ap
= ap
->next
)
865 && (ap
->mach
== machine
866 || (machine
== 0 && ap
->the_default
)))
877 bfd_printable_arch_mach
880 const char *bfd_printable_arch_mach
881 (enum bfd_architecture arch, unsigned long machine);
884 Return a printable string representing the architecture and
887 This routine is depreciated.
891 bfd_printable_arch_mach (arch
, machine
)
892 enum bfd_architecture arch
;
893 unsigned long machine
;
895 const bfd_arch_info_type
*ap
= bfd_lookup_arch (arch
, machine
);
898 return ap
->printable_name
;