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 .#define bfd_mach_m32rx 'x'
185 . bfd_arch_mn10200, {* Matsushita MN10200 *}
186 . bfd_arch_mn10300, {* Matsushita MN10300 *}
187 .#define bfd_mach_mn10300 300
189 .#define bfd_mach_fr30 0x46523330
204 This structure contains information on architectures for use
208 .typedef struct bfd_arch_info
211 . int bits_per_address;
213 . enum bfd_architecture arch;
214 . unsigned long mach;
215 . const char *arch_name;
216 . const char *printable_name;
217 . unsigned int section_align_power;
218 . {* true if this is the default machine for the architecture *}
219 . boolean the_default;
220 . const struct bfd_arch_info * (*compatible)
221 . PARAMS ((const struct bfd_arch_info *a,
222 . const struct bfd_arch_info *b));
224 . boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
226 . const struct bfd_arch_info *next;
227 .} bfd_arch_info_type;
230 extern const bfd_arch_info_type bfd_a29k_arch;
231 extern const bfd_arch_info_type bfd_alpha_arch;
232 extern const bfd_arch_info_type bfd_arc_arch;
233 extern const bfd_arch_info_type bfd_arm_arch;
234 extern const bfd_arch_info_type bfd_d10v_arch;
235 extern const bfd_arch_info_type bfd_d30v_arch;
236 extern const bfd_arch_info_type bfd_h8300_arch;
237 extern const bfd_arch_info_type bfd_h8500_arch;
238 extern const bfd_arch_info_type bfd_hppa_arch;
239 extern const bfd_arch_info_type bfd_i386_arch;
240 extern const bfd_arch_info_type bfd_i860_arch;
241 extern const bfd_arch_info_type bfd_i960_arch;
242 extern const bfd_arch_info_type bfd_m32r_arch;
243 extern const bfd_arch_info_type bfd_m68k_arch;
244 extern const bfd_arch_info_type bfd_m88k_arch;
245 extern const bfd_arch_info_type bfd_mips_arch;
246 extern const bfd_arch_info_type bfd_mn10200_arch;
247 extern const bfd_arch_info_type bfd_mn10300_arch;
248 extern const bfd_arch_info_type bfd_powerpc_arch;
249 extern const bfd_arch_info_type bfd_rs6000_arch;
250 extern const bfd_arch_info_type bfd_pj_arch;
251 extern const bfd_arch_info_type bfd_sh_arch;
252 extern const bfd_arch_info_type bfd_sparc_arch;
253 extern const bfd_arch_info_type bfd_tic30_arch;
254 extern const bfd_arch_info_type bfd_tic80_arch;
255 extern const bfd_arch_info_type bfd_vax_arch;
256 extern const bfd_arch_info_type bfd_we32k_arch;
257 extern const bfd_arch_info_type bfd_z8k_arch;
258 extern const bfd_arch_info_type bfd_ns32k_arch;
259 extern const bfd_arch_info_type bfd_w65_arch;
260 extern const bfd_arch_info_type bfd_v850_arch;
261 extern const bfd_arch_info_type bfd_fr30_arch;
262 extern const bfd_arch_info_type bfd_mcore_arch;
264 static const bfd_arch_info_type * const bfd_archures_list[] =
266 #ifdef SELECT_ARCHITECTURES
267 SELECT_ARCHITECTURES,
310 const char *bfd_printable_name(bfd *abfd);
313 Return a printable string representing the architecture and machine
314 from the pointer to the architecture info structure.
319 bfd_printable_name (abfd)
322 return abfd->arch_info->printable_name;
332 const bfd_arch_info_type *bfd_scan_arch(const char *string);
335 Figure out if BFD supports any cpu which could be described with
336 the name @var{string}. Return a pointer to an <<arch_info>>
337 structure if a machine is found, otherwise NULL.
341 const bfd_arch_info_type *
342 bfd_scan_arch (string)
345 const bfd_arch_info_type * const *app, *ap;
347 /* Look through all the installed architectures */
348 for (app = bfd_archures_list; *app != NULL; app++)
350 for (ap = *app; ap != NULL; ap = ap->next)
352 if (ap->scan (ap, string))
367 const char **bfd_arch_list(void);
370 Return a freshly malloced NULL-terminated vector of the names
371 of all the valid BFD architectures. Do not modify the names.
379 const char **name_ptr;
380 const char **name_list;
381 const bfd_arch_info_type * const *app;
383 /* Determine the number of architectures */
385 for (app = bfd_archures_list; *app != NULL; app++)
387 const bfd_arch_info_type *ap;
388 for (ap = *app; ap != NULL; ap = ap->next)
394 name_list = (CONST char **)
395 bfd_malloc ((vec_length + 1) * sizeof (char **));
396 if (name_list == NULL)
399 /* Point the list at each of the names */
400 name_ptr = name_list;
401 for (app = bfd_archures_list; *app != NULL; app++)
403 const bfd_arch_info_type *ap;
404 for (ap = *app; ap != NULL; ap = ap->next)
406 *name_ptr = ap->printable_name;
419 bfd_arch_get_compatible
422 const bfd_arch_info_type *bfd_arch_get_compatible(
427 Determine whether two BFDs'
428 architectures and machine types are compatible. Calculates
429 the lowest common denominator between the two architectures
430 and machine types implied by the BFDs and returns a pointer to
431 an <<arch_info>> structure describing the compatible machine.
434 const bfd_arch_info_type *
435 bfd_arch_get_compatible (abfd, bbfd)
439 /* If either architecture is unknown, then all we can do is assume
440 the user knows what he's doing. */
441 if (abfd->arch_info->arch == bfd_arch_unknown)
442 return bbfd->arch_info;
443 if (bbfd->arch_info->arch == bfd_arch_unknown)
444 return abfd->arch_info;
446 /* Otherwise architecture-specific code has to decide. */
447 return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
453 bfd_default_arch_struct
456 The <<bfd_default_arch_struct>> is an item of
457 <<bfd_arch_info_type>> which has been initialized to a fairly
458 generic state. A BFD starts life by pointing to this
459 structure, until the correct back end has determined the real
460 architecture of the file.
462 .extern const bfd_arch_info_type bfd_default_arch_struct;
466 const bfd_arch_info_type bfd_default_arch_struct =
468 32,32,8,bfd_arch_unknown,0,"unknown","unknown",2,true,
469 bfd_default_compatible,
479 void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
482 Set the architecture info of @var{abfd} to @var{arg}.
486 bfd_set_arch_info (abfd, arg)
488 const bfd_arch_info_type *arg;
490 abfd->arch_info = arg;
495 bfd_default_set_arch_mach
498 boolean bfd_default_set_arch_mach(bfd *abfd,
499 enum bfd_architecture arch,
503 Set the architecture and machine type in BFD @var{abfd}
504 to @var{arch} and @var{mach}. Find the correct
505 pointer to a structure and insert it into the <<arch_info>>
510 bfd_default_set_arch_mach (abfd, arch, mach)
512 enum bfd_architecture arch;
515 const bfd_arch_info_type * const *app, *ap;
517 for (app = bfd_archures_list; *app != NULL; app++)
519 for (ap = *app; ap != NULL; ap = ap->next)
523 || (mach == 0 && ap->the_default)))
525 abfd->arch_info = ap;
531 abfd->arch_info = &bfd_default_arch_struct;
532 bfd_set_error (bfd_error_bad_value);
542 enum bfd_architecture bfd_get_arch(bfd *abfd);
545 Return the enumerated type which describes the BFD @var{abfd}'s
550 enum bfd_architecture
554 return abfd->arch_info->arch;
562 unsigned long bfd_get_mach(bfd *abfd);
565 Return the long type which describes the BFD @var{abfd}'s
573 return abfd->arch_info->mach;
578 bfd_arch_bits_per_byte
581 unsigned int bfd_arch_bits_per_byte(bfd *abfd);
584 Return the number of bits in one of the BFD @var{abfd}'s
585 architecture's bytes.
590 bfd_arch_bits_per_byte (abfd)
593 return abfd->arch_info->bits_per_byte;
598 bfd_arch_bits_per_address
601 unsigned int bfd_arch_bits_per_address(bfd *abfd);
604 Return the number of bits in one of the BFD @var{abfd}'s
605 architecture's addresses.
609 bfd_arch_bits_per_address (abfd)
612 return abfd->arch_info->bits_per_address;
618 bfd_default_compatible
621 const bfd_arch_info_type *bfd_default_compatible
622 (const bfd_arch_info_type *a,
623 const bfd_arch_info_type *b);
626 The default function for testing for compatibility.
629 const bfd_arch_info_type *
630 bfd_default_compatible (a,b)
631 const bfd_arch_info_type *a;
632 const bfd_arch_info_type *b;
634 if (a->arch != b->arch)
637 if (a->mach > b->mach)
640 if (b->mach > a->mach)
652 boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
655 The default function for working out whether this is an
656 architecture hit and a machine hit.
660 bfd_default_scan (info, string)
661 const struct bfd_arch_info *info;
666 unsigned long number;
667 enum bfd_architecture arch;
668 const char *printable_name_colon;
670 /* Exact match of the architecture name (ARCH_NAME) and also the
671 default architecture? */
672 if (strcasecmp (string, info->arch_name) == 0
673 && info->the_default)
676 /* Exact match of the machine name (PRINTABLE_NAME)? */
677 if (strcasecmp (string, info->printable_name) == 0)
680 /* Given that printable_name contains no colon, attempt to match:
681 ARCH_NAME [ ":" ] PRINTABLE_NAME? */
682 printable_name_colon = strchr (info->printable_name, ':');
683 if (printable_name_colon == NULL)
685 int strlen_arch_name = strlen (info->arch_name);
686 if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
688 if (string[strlen_arch_name] == ':')
690 if (strcasecmp (string + strlen_arch_name + 1,
691 info->printable_name) == 0)
696 if (strcasecmp (string + strlen_arch_name,
697 info->printable_name) == 0)
703 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
704 Attempt to match: <arch> <mach>? */
705 if (printable_name_colon != NULL)
707 int colon_index = printable_name_colon - info->printable_name;
708 if (strncasecmp (string, info->printable_name, colon_index) == 0
709 && strcasecmp (string + colon_index,
710 info->printable_name + colon_index + 1) == 0)
714 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
715 attempt to match just <mach>, it could be ambigious. This test
716 is left until later. */
718 /* NOTE: The below is retained for compatibility only. Please do not
721 /* See how much of the supplied string matches with the
722 architecture, eg the string m68k:68020 would match the 68k entry
723 up to the :, then we get left with the machine number */
725 for (ptr_src = string, ptr_tst = info->arch_name;
726 *ptr_src && *ptr_tst;
727 ptr_src++, ptr_tst++)
729 if (*ptr_src != *ptr_tst) break;
732 /* Chewed up as much of the architecture as will match, skip any
739 /* nothing more, then only keep this one if it is the default
740 machine for this architecture */
741 return info->the_default;
745 while (isdigit ((unsigned char) *ptr_src))
747 number = number * 10 + *ptr_src - '0';
751 /* NOTE: The below is retained for compatibility only.
752 PLEASE DO NOT ADD TO THIS CODE. */
756 /* FIXME: These are needed to parse IEEE objects. */
758 arch = bfd_arch_m68k;
759 number = bfd_mach_m68000;
762 arch = bfd_arch_m68k;
763 number = bfd_mach_m68010;
766 arch = bfd_arch_m68k;
767 number = bfd_mach_m68020;
770 arch = bfd_arch_m68k;
771 number = bfd_mach_m68030;
774 arch = bfd_arch_m68k;
775 number = bfd_mach_m68040;
778 arch = bfd_arch_m68k;
779 number = bfd_mach_m68060;
782 arch = bfd_arch_m68k;
783 number = bfd_mach_cpu32;
787 arch = bfd_arch_we32k;
791 arch = bfd_arch_mips;
792 number = bfd_mach_mips3000;
796 arch = bfd_arch_mips;
797 number = bfd_mach_mips4000;
801 arch = bfd_arch_rs6000;
808 if (arch != info->arch)
811 if (number != info->mach)
823 const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
826 Return the architecture info struct in @var{abfd}.
829 const bfd_arch_info_type *
830 bfd_get_arch_info (abfd)
833 return abfd->arch_info;
842 const bfd_arch_info_type *bfd_lookup_arch
843 (enum bfd_architecture
845 unsigned long machine);
848 Look for the architecure info structure which matches the
849 arguments @var{arch} and @var{machine}. A machine of 0 matches the
850 machine/architecture structure which marks itself as the
854 const bfd_arch_info_type *
855 bfd_lookup_arch (arch, machine)
856 enum bfd_architecture arch;
857 unsigned long machine;
859 const bfd_arch_info_type * const *app, *ap;
861 for (app = bfd_archures_list; *app != NULL; app++)
863 for (ap = *app; ap != NULL; ap = ap->next)
866 && (ap->mach == machine
867 || (machine == 0 && ap->the_default)))
878 bfd_printable_arch_mach
881 const char *bfd_printable_arch_mach
882 (enum bfd_architecture arch, unsigned long machine);
885 Return a printable string representing the architecture and
888 This routine is depreciated.
892 bfd_printable_arch_mach (arch, machine)
893 enum bfd_architecture arch;
894 unsigned long machine;
896 const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
899 return ap->printable_name;