archures.texi revision 1.1.1.2
1@section Architectures 2BFD keeps one atom in a BFD describing the 3architecture of the data attached to the BFD: a pointer to a 4@code{bfd_arch_info_type}. 5 6Pointers to structures can be requested independently of a BFD 7so that an architecture's information can be interrogated 8without access to an open BFD. 9 10The architecture information is provided by each architecture package. 11The set of default architectures is selected by the macro 12@code{SELECT_ARCHITECTURES}. This is normally set up in the 13@file{config/@var{target}.mt} file of your choice. If the name is not 14defined, then all the architectures supported are included. 15 16When BFD starts up, all the architectures are called with an 17initialize method. It is up to the architecture back end to 18insert as many items into the list of architectures as it wants to; 19generally this would be one for each machine and one for the 20default case (an item with a machine field of 0). 21 22BFD's idea of an architecture is implemented in @file{archures.c}. 23 24@subsection bfd_architecture 25 26 27@strong{Description}@* 28This enum gives the object file's CPU architecture, in a 29global sense---i.e., what processor family does it belong to? 30Another field indicates which processor within 31the family is in use. The machine gives a number which 32distinguishes different versions of the architecture, 33containing, for example, 2 and 3 for Intel i960 KA and i960 KB, 34and 68020 and 68030 for Motorola 68020 and 68030. 35@example 36enum bfd_architecture 37@{ 38 bfd_arch_unknown, /* File arch not known. */ 39 bfd_arch_obscure, /* Arch known, not one of these. */ 40 bfd_arch_m68k, /* Motorola 68xxx */ 41#define bfd_mach_m68000 1 42#define bfd_mach_m68008 2 43#define bfd_mach_m68010 3 44#define bfd_mach_m68020 4 45#define bfd_mach_m68030 5 46#define bfd_mach_m68040 6 47#define bfd_mach_m68060 7 48#define bfd_mach_cpu32 8 49#define bfd_mach_fido 9 50#define bfd_mach_mcf_isa_a_nodiv 10 51#define bfd_mach_mcf_isa_a 11 52#define bfd_mach_mcf_isa_a_mac 12 53#define bfd_mach_mcf_isa_a_emac 13 54#define bfd_mach_mcf_isa_aplus 14 55#define bfd_mach_mcf_isa_aplus_mac 15 56#define bfd_mach_mcf_isa_aplus_emac 16 57#define bfd_mach_mcf_isa_b_nousp 17 58#define bfd_mach_mcf_isa_b_nousp_mac 18 59#define bfd_mach_mcf_isa_b_nousp_emac 19 60#define bfd_mach_mcf_isa_b 20 61#define bfd_mach_mcf_isa_b_mac 21 62#define bfd_mach_mcf_isa_b_emac 22 63#define bfd_mach_mcf_isa_b_float 23 64#define bfd_mach_mcf_isa_b_float_mac 24 65#define bfd_mach_mcf_isa_b_float_emac 25 66#define bfd_mach_mcf_isa_c 26 67#define bfd_mach_mcf_isa_c_mac 27 68#define bfd_mach_mcf_isa_c_emac 28 69#define bfd_mach_mcf_isa_c_nodiv 29 70#define bfd_mach_mcf_isa_c_nodiv_mac 30 71#define bfd_mach_mcf_isa_c_nodiv_emac 31 72 bfd_arch_vax, /* DEC Vax */ 73 bfd_arch_i960, /* Intel 960 */ 74 /* The order of the following is important. 75 lower number indicates a machine type that 76 only accepts a subset of the instructions 77 available to machines with higher numbers. 78 The exception is the "ca", which is 79 incompatible with all other machines except 80 "core". */ 81 82#define bfd_mach_i960_core 1 83#define bfd_mach_i960_ka_sa 2 84#define bfd_mach_i960_kb_sb 3 85#define bfd_mach_i960_mc 4 86#define bfd_mach_i960_xa 5 87#define bfd_mach_i960_ca 6 88#define bfd_mach_i960_jx 7 89#define bfd_mach_i960_hx 8 90 91 bfd_arch_or32, /* OpenRISC 32 */ 92 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_sparclite_le 6 101#define bfd_mach_sparc_v9 7 102#define bfd_mach_sparc_v9a 8 /* with ultrasparc add'ns. */ 103#define bfd_mach_sparc_v8plusb 9 /* with cheetah add'ns. */ 104#define bfd_mach_sparc_v9b 10 /* with cheetah add'ns. */ 105/* Nonzero if MACH has the v9 instruction set. */ 106#define bfd_mach_sparc_v9_p(mach) \ 107 ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \ 108 && (mach) != bfd_mach_sparc_sparclite_le) 109/* Nonzero if MACH is a 64 bit sparc architecture. */ 110#define bfd_mach_sparc_64bit_p(mach) \ 111 ((mach) >= bfd_mach_sparc_v9 && (mach) != bfd_mach_sparc_v8plusb) 112 bfd_arch_spu, /* PowerPC SPU */ 113#define bfd_mach_spu 256 114 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_mips4120 4120 122#define bfd_mach_mips4300 4300 123#define bfd_mach_mips4400 4400 124#define bfd_mach_mips4600 4600 125#define bfd_mach_mips4650 4650 126#define bfd_mach_mips5000 5000 127#define bfd_mach_mips5400 5400 128#define bfd_mach_mips5500 5500 129#define bfd_mach_mips6000 6000 130#define bfd_mach_mips7000 7000 131#define bfd_mach_mips8000 8000 132#define bfd_mach_mips9000 9000 133#define bfd_mach_mips10000 10000 134#define bfd_mach_mips12000 12000 135#define bfd_mach_mips14000 14000 136#define bfd_mach_mips16000 16000 137#define bfd_mach_mips16 16 138#define bfd_mach_mips5 5 139#define bfd_mach_mips_loongson_2e 3001 140#define bfd_mach_mips_loongson_2f 3002 141#define bfd_mach_mips_sb1 12310201 /* octal 'SB', 01 */ 142#define bfd_mach_mips_octeon 6501 143#define bfd_mach_mips_xlr 887682 /* decimal 'XLR' */ 144#define bfd_mach_mipsisa32 32 145#define bfd_mach_mipsisa32r2 33 146#define bfd_mach_mipsisa64 64 147#define bfd_mach_mipsisa64r2 65 148 bfd_arch_i386, /* Intel 386 */ 149#define bfd_mach_i386_i386 1 150#define bfd_mach_i386_i8086 2 151#define bfd_mach_i386_i386_intel_syntax 3 152#define bfd_mach_x86_64 64 153#define bfd_mach_x86_64_intel_syntax 65 154 bfd_arch_l1om, /* Intel L1OM */ 155#define bfd_mach_l1om 66 156#define bfd_mach_l1om_intel_syntax 67 157 bfd_arch_we32k, /* AT&T WE32xxx */ 158 bfd_arch_tahoe, /* CCI/Harris Tahoe */ 159 bfd_arch_i860, /* Intel 860 */ 160 bfd_arch_i370, /* IBM 360/370 Mainframes */ 161 bfd_arch_romp, /* IBM ROMP PC/RT */ 162 bfd_arch_convex, /* Convex */ 163 bfd_arch_m88k, /* Motorola 88xxx */ 164 bfd_arch_m98k, /* Motorola 98xxx */ 165 bfd_arch_pyramid, /* Pyramid Technology */ 166 bfd_arch_h8300, /* Renesas H8/300 (formerly Hitachi H8/300) */ 167#define bfd_mach_h8300 1 168#define bfd_mach_h8300h 2 169#define bfd_mach_h8300s 3 170#define bfd_mach_h8300hn 4 171#define bfd_mach_h8300sn 5 172#define bfd_mach_h8300sx 6 173#define bfd_mach_h8300sxn 7 174 bfd_arch_pdp11, /* DEC PDP-11 */ 175 bfd_arch_plugin, 176 bfd_arch_powerpc, /* PowerPC */ 177#define bfd_mach_ppc 32 178#define bfd_mach_ppc64 64 179#define bfd_mach_ppc_403 403 180#define bfd_mach_ppc_403gc 4030 181#define bfd_mach_ppc_405 405 182#define bfd_mach_ppc_505 505 183#define bfd_mach_ppc_601 601 184#define bfd_mach_ppc_602 602 185#define bfd_mach_ppc_603 603 186#define bfd_mach_ppc_ec603e 6031 187#define bfd_mach_ppc_604 604 188#define bfd_mach_ppc_620 620 189#define bfd_mach_ppc_630 630 190#define bfd_mach_ppc_750 750 191#define bfd_mach_ppc_860 860 192#define bfd_mach_ppc_a35 35 193#define bfd_mach_ppc_rs64ii 642 194#define bfd_mach_ppc_rs64iii 643 195#define bfd_mach_ppc_7400 7400 196#define bfd_mach_ppc_e500 500 197#define bfd_mach_ppc_e500mc 5001 198#define bfd_mach_ppc_e500mc64 5005 199#define bfd_mach_ppc_titan 83 200 bfd_arch_rs6000, /* IBM RS/6000 */ 201#define bfd_mach_rs6k 6000 202#define bfd_mach_rs6k_rs1 6001 203#define bfd_mach_rs6k_rsc 6003 204#define bfd_mach_rs6k_rs2 6002 205 bfd_arch_hppa, /* HP PA RISC */ 206#define bfd_mach_hppa10 10 207#define bfd_mach_hppa11 11 208#define bfd_mach_hppa20 20 209#define bfd_mach_hppa20w 25 210 bfd_arch_d10v, /* Mitsubishi D10V */ 211#define bfd_mach_d10v 1 212#define bfd_mach_d10v_ts2 2 213#define bfd_mach_d10v_ts3 3 214 bfd_arch_d30v, /* Mitsubishi D30V */ 215 bfd_arch_dlx, /* DLX */ 216 bfd_arch_m68hc11, /* Motorola 68HC11 */ 217 bfd_arch_m68hc12, /* Motorola 68HC12 */ 218#define bfd_mach_m6812_default 0 219#define bfd_mach_m6812 1 220#define bfd_mach_m6812s 2 221 bfd_arch_z8k, /* Zilog Z8000 */ 222#define bfd_mach_z8001 1 223#define bfd_mach_z8002 2 224 bfd_arch_h8500, /* Renesas H8/500 (formerly Hitachi H8/500) */ 225 bfd_arch_sh, /* Renesas / SuperH SH (formerly Hitachi SH) */ 226#define bfd_mach_sh 1 227#define bfd_mach_sh2 0x20 228#define bfd_mach_sh_dsp 0x2d 229#define bfd_mach_sh2a 0x2a 230#define bfd_mach_sh2a_nofpu 0x2b 231#define bfd_mach_sh2a_nofpu_or_sh4_nommu_nofpu 0x2a1 232#define bfd_mach_sh2a_nofpu_or_sh3_nommu 0x2a2 233#define bfd_mach_sh2a_or_sh4 0x2a3 234#define bfd_mach_sh2a_or_sh3e 0x2a4 235#define bfd_mach_sh2e 0x2e 236#define bfd_mach_sh3 0x30 237#define bfd_mach_sh3_nommu 0x31 238#define bfd_mach_sh3_dsp 0x3d 239#define bfd_mach_sh3e 0x3e 240#define bfd_mach_sh4 0x40 241#define bfd_mach_sh4_nofpu 0x41 242#define bfd_mach_sh4_nommu_nofpu 0x42 243#define bfd_mach_sh4a 0x4a 244#define bfd_mach_sh4a_nofpu 0x4b 245#define bfd_mach_sh4al_dsp 0x4d 246#define bfd_mach_sh5 0x50 247 bfd_arch_alpha, /* Dec Alpha */ 248#define bfd_mach_alpha_ev4 0x10 249#define bfd_mach_alpha_ev5 0x20 250#define bfd_mach_alpha_ev6 0x30 251 bfd_arch_arm, /* Advanced Risc Machines ARM. */ 252#define bfd_mach_arm_unknown 0 253#define bfd_mach_arm_2 1 254#define bfd_mach_arm_2a 2 255#define bfd_mach_arm_3 3 256#define bfd_mach_arm_3M 4 257#define bfd_mach_arm_4 5 258#define bfd_mach_arm_4T 6 259#define bfd_mach_arm_5 7 260#define bfd_mach_arm_5T 8 261#define bfd_mach_arm_5TE 9 262#define bfd_mach_arm_XScale 10 263#define bfd_mach_arm_ep9312 11 264#define bfd_mach_arm_iWMMXt 12 265#define bfd_mach_arm_iWMMXt2 13 266 bfd_arch_ns32k, /* National Semiconductors ns32000 */ 267 bfd_arch_w65, /* WDC 65816 */ 268 bfd_arch_tic30, /* Texas Instruments TMS320C30 */ 269 bfd_arch_tic4x, /* Texas Instruments TMS320C3X/4X */ 270#define bfd_mach_tic3x 30 271#define bfd_mach_tic4x 40 272 bfd_arch_tic54x, /* Texas Instruments TMS320C54X */ 273 bfd_arch_tic6x, /* Texas Instruments TMS320C6X */ 274 bfd_arch_tic80, /* TI TMS320c80 (MVP) */ 275 bfd_arch_v850, /* NEC V850 */ 276#define bfd_mach_v850 1 277#define bfd_mach_v850e 'E' 278#define bfd_mach_v850e1 '1' 279#define bfd_mach_v850e2 0x4532 280#define bfd_mach_v850e2v3 0x45325633 281 bfd_arch_arc, /* ARC Cores */ 282#define bfd_mach_arc_5 5 283#define bfd_mach_arc_6 6 284#define bfd_mach_arc_7 7 285#define bfd_mach_arc_8 8 286 bfd_arch_m32c, /* Renesas M16C/M32C. */ 287#define bfd_mach_m16c 0x75 288#define bfd_mach_m32c 0x78 289 bfd_arch_m32r, /* Renesas M32R (formerly Mitsubishi M32R/D) */ 290#define bfd_mach_m32r 1 /* For backwards compatibility. */ 291#define bfd_mach_m32rx 'x' 292#define bfd_mach_m32r2 '2' 293 bfd_arch_mn10200, /* Matsushita MN10200 */ 294 bfd_arch_mn10300, /* Matsushita MN10300 */ 295#define bfd_mach_mn10300 300 296#define bfd_mach_am33 330 297#define bfd_mach_am33_2 332 298 bfd_arch_fr30, 299#define bfd_mach_fr30 0x46523330 300 bfd_arch_frv, 301#define bfd_mach_frv 1 302#define bfd_mach_frvsimple 2 303#define bfd_mach_fr300 300 304#define bfd_mach_fr400 400 305#define bfd_mach_fr450 450 306#define bfd_mach_frvtomcat 499 /* fr500 prototype */ 307#define bfd_mach_fr500 500 308#define bfd_mach_fr550 550 309 bfd_arch_moxie, /* The moxie processor */ 310#define bfd_mach_moxie 1 311 bfd_arch_mcore, 312 bfd_arch_mep, 313#define bfd_mach_mep 1 314#define bfd_mach_mep_h1 0x6831 315#define bfd_mach_mep_c5 0x6335 316 bfd_arch_ia64, /* HP/Intel ia64 */ 317#define bfd_mach_ia64_elf64 64 318#define bfd_mach_ia64_elf32 32 319 bfd_arch_ip2k, /* Ubicom IP2K microcontrollers. */ 320#define bfd_mach_ip2022 1 321#define bfd_mach_ip2022ext 2 322 bfd_arch_iq2000, /* Vitesse IQ2000. */ 323#define bfd_mach_iq2000 1 324#define bfd_mach_iq10 2 325 bfd_arch_mt, 326#define bfd_mach_ms1 1 327#define bfd_mach_mrisc2 2 328#define bfd_mach_ms2 3 329 bfd_arch_pj, 330 bfd_arch_avr, /* Atmel AVR microcontrollers. */ 331#define bfd_mach_avr1 1 332#define bfd_mach_avr2 2 333#define bfd_mach_avr25 25 334#define bfd_mach_avr3 3 335#define bfd_mach_avr31 31 336#define bfd_mach_avr35 35 337#define bfd_mach_avr4 4 338#define bfd_mach_avr5 5 339#define bfd_mach_avr51 51 340#define bfd_mach_avr6 6 341 bfd_arch_bfin, /* ADI Blackfin */ 342#define bfd_mach_bfin 1 343 bfd_arch_cr16, /* National Semiconductor CompactRISC (ie CR16). */ 344#define bfd_mach_cr16 1 345 bfd_arch_cr16c, /* National Semiconductor CompactRISC. */ 346#define bfd_mach_cr16c 1 347 bfd_arch_crx, /* National Semiconductor CRX. */ 348#define bfd_mach_crx 1 349 bfd_arch_cris, /* Axis CRIS */ 350#define bfd_mach_cris_v0_v10 255 351#define bfd_mach_cris_v32 32 352#define bfd_mach_cris_v10_v32 1032 353 bfd_arch_rx, /* Renesas RX. */ 354#define bfd_mach_rx 0x75 355 bfd_arch_s390, /* IBM s390 */ 356#define bfd_mach_s390_31 31 357#define bfd_mach_s390_64 64 358 bfd_arch_score, /* Sunplus score */ 359#define bfd_mach_score3 3 360#define bfd_mach_score7 7 361 bfd_arch_openrisc, /* OpenRISC */ 362 bfd_arch_mmix, /* Donald Knuth's educational processor. */ 363 bfd_arch_xstormy16, 364#define bfd_mach_xstormy16 1 365 bfd_arch_msp430, /* Texas Instruments MSP430 architecture. */ 366#define bfd_mach_msp11 11 367#define bfd_mach_msp110 110 368#define bfd_mach_msp12 12 369#define bfd_mach_msp13 13 370#define bfd_mach_msp14 14 371#define bfd_mach_msp15 15 372#define bfd_mach_msp16 16 373#define bfd_mach_msp21 21 374#define bfd_mach_msp31 31 375#define bfd_mach_msp32 32 376#define bfd_mach_msp33 33 377#define bfd_mach_msp41 41 378#define bfd_mach_msp42 42 379#define bfd_mach_msp43 43 380#define bfd_mach_msp44 44 381 bfd_arch_xc16x, /* Infineon's XC16X Series. */ 382#define bfd_mach_xc16x 1 383#define bfd_mach_xc16xl 2 384#define bfd_mach_xc16xs 3 385 bfd_arch_xtensa, /* Tensilica's Xtensa cores. */ 386#define bfd_mach_xtensa 1 387 bfd_arch_z80, 388#define bfd_mach_z80strict 1 /* No undocumented opcodes. */ 389#define bfd_mach_z80 3 /* With ixl, ixh, iyl, and iyh. */ 390#define bfd_mach_z80full 7 /* All undocumented instructions. */ 391#define bfd_mach_r800 11 /* R800: successor with multiplication. */ 392 bfd_arch_lm32, /* Lattice Mico32 */ 393#define bfd_mach_lm32 1 394 bfd_arch_microblaze,/* Xilinx MicroBlaze. */ 395 bfd_arch_last 396 @}; 397@end example 398 399@subsection bfd_arch_info 400 401 402@strong{Description}@* 403This structure contains information on architectures for use 404within BFD. 405@example 406 407typedef struct bfd_arch_info 408@{ 409 int bits_per_word; 410 int bits_per_address; 411 int bits_per_byte; 412 enum bfd_architecture arch; 413 unsigned long mach; 414 const char *arch_name; 415 const char *printable_name; 416 unsigned int section_align_power; 417 /* TRUE if this is the default machine for the architecture. 418 The default arch should be the first entry for an arch so that 419 all the entries for that arch can be accessed via @code{next}. */ 420 bfd_boolean the_default; 421 const struct bfd_arch_info * (*compatible) 422 (const struct bfd_arch_info *a, const struct bfd_arch_info *b); 423 424 bfd_boolean (*scan) (const struct bfd_arch_info *, const char *); 425 426 const struct bfd_arch_info *next; 427@} 428bfd_arch_info_type; 429 430@end example 431 432@findex bfd_printable_name 433@subsubsection @code{bfd_printable_name} 434@strong{Synopsis} 435@example 436const char *bfd_printable_name (bfd *abfd); 437@end example 438@strong{Description}@* 439Return a printable string representing the architecture and machine 440from the pointer to the architecture info structure. 441 442@findex bfd_scan_arch 443@subsubsection @code{bfd_scan_arch} 444@strong{Synopsis} 445@example 446const bfd_arch_info_type *bfd_scan_arch (const char *string); 447@end example 448@strong{Description}@* 449Figure out if BFD supports any cpu which could be described with 450the name @var{string}. Return a pointer to an @code{arch_info} 451structure if a machine is found, otherwise NULL. 452 453@findex bfd_arch_list 454@subsubsection @code{bfd_arch_list} 455@strong{Synopsis} 456@example 457const char **bfd_arch_list (void); 458@end example 459@strong{Description}@* 460Return a freshly malloced NULL-terminated vector of the names 461of all the valid BFD architectures. Do not modify the names. 462 463@findex bfd_arch_get_compatible 464@subsubsection @code{bfd_arch_get_compatible} 465@strong{Synopsis} 466@example 467const bfd_arch_info_type *bfd_arch_get_compatible 468 (const bfd *abfd, const bfd *bbfd, bfd_boolean accept_unknowns); 469@end example 470@strong{Description}@* 471Determine whether two BFDs' architectures and machine types 472are compatible. Calculates the lowest common denominator 473between the two architectures and machine types implied by 474the BFDs and returns a pointer to an @code{arch_info} structure 475describing the compatible machine. 476 477@findex bfd_default_arch_struct 478@subsubsection @code{bfd_default_arch_struct} 479@strong{Description}@* 480The @code{bfd_default_arch_struct} is an item of 481@code{bfd_arch_info_type} which has been initialized to a fairly 482generic state. A BFD starts life by pointing to this 483structure, until the correct back end has determined the real 484architecture of the file. 485@example 486extern const bfd_arch_info_type bfd_default_arch_struct; 487@end example 488 489@findex bfd_set_arch_info 490@subsubsection @code{bfd_set_arch_info} 491@strong{Synopsis} 492@example 493void bfd_set_arch_info (bfd *abfd, const bfd_arch_info_type *arg); 494@end example 495@strong{Description}@* 496Set the architecture info of @var{abfd} to @var{arg}. 497 498@findex bfd_default_set_arch_mach 499@subsubsection @code{bfd_default_set_arch_mach} 500@strong{Synopsis} 501@example 502bfd_boolean bfd_default_set_arch_mach 503 (bfd *abfd, enum bfd_architecture arch, unsigned long mach); 504@end example 505@strong{Description}@* 506Set the architecture and machine type in BFD @var{abfd} 507to @var{arch} and @var{mach}. Find the correct 508pointer to a structure and insert it into the @code{arch_info} 509pointer. 510 511@findex bfd_get_arch 512@subsubsection @code{bfd_get_arch} 513@strong{Synopsis} 514@example 515enum bfd_architecture bfd_get_arch (bfd *abfd); 516@end example 517@strong{Description}@* 518Return the enumerated type which describes the BFD @var{abfd}'s 519architecture. 520 521@findex bfd_get_mach 522@subsubsection @code{bfd_get_mach} 523@strong{Synopsis} 524@example 525unsigned long bfd_get_mach (bfd *abfd); 526@end example 527@strong{Description}@* 528Return the long type which describes the BFD @var{abfd}'s 529machine. 530 531@findex bfd_arch_bits_per_byte 532@subsubsection @code{bfd_arch_bits_per_byte} 533@strong{Synopsis} 534@example 535unsigned int bfd_arch_bits_per_byte (bfd *abfd); 536@end example 537@strong{Description}@* 538Return the number of bits in one of the BFD @var{abfd}'s 539architecture's bytes. 540 541@findex bfd_arch_bits_per_address 542@subsubsection @code{bfd_arch_bits_per_address} 543@strong{Synopsis} 544@example 545unsigned int bfd_arch_bits_per_address (bfd *abfd); 546@end example 547@strong{Description}@* 548Return the number of bits in one of the BFD @var{abfd}'s 549architecture's addresses. 550 551@findex bfd_default_compatible 552@subsubsection @code{bfd_default_compatible} 553@strong{Synopsis} 554@example 555const bfd_arch_info_type *bfd_default_compatible 556 (const bfd_arch_info_type *a, const bfd_arch_info_type *b); 557@end example 558@strong{Description}@* 559The default function for testing for compatibility. 560 561@findex bfd_default_scan 562@subsubsection @code{bfd_default_scan} 563@strong{Synopsis} 564@example 565bfd_boolean bfd_default_scan 566 (const struct bfd_arch_info *info, const char *string); 567@end example 568@strong{Description}@* 569The default function for working out whether this is an 570architecture hit and a machine hit. 571 572@findex bfd_get_arch_info 573@subsubsection @code{bfd_get_arch_info} 574@strong{Synopsis} 575@example 576const bfd_arch_info_type *bfd_get_arch_info (bfd *abfd); 577@end example 578@strong{Description}@* 579Return the architecture info struct in @var{abfd}. 580 581@findex bfd_lookup_arch 582@subsubsection @code{bfd_lookup_arch} 583@strong{Synopsis} 584@example 585const bfd_arch_info_type *bfd_lookup_arch 586 (enum bfd_architecture arch, unsigned long machine); 587@end example 588@strong{Description}@* 589Look for the architecture info structure which matches the 590arguments @var{arch} and @var{machine}. A machine of 0 matches the 591machine/architecture structure which marks itself as the 592default. 593 594@findex bfd_printable_arch_mach 595@subsubsection @code{bfd_printable_arch_mach} 596@strong{Synopsis} 597@example 598const char *bfd_printable_arch_mach 599 (enum bfd_architecture arch, unsigned long machine); 600@end example 601@strong{Description}@* 602Return a printable string representing the architecture and 603machine type. 604 605This routine is depreciated. 606 607@findex bfd_octets_per_byte 608@subsubsection @code{bfd_octets_per_byte} 609@strong{Synopsis} 610@example 611unsigned int bfd_octets_per_byte (bfd *abfd); 612@end example 613@strong{Description}@* 614Return the number of octets (8-bit quantities) per target byte 615(minimum addressable unit). In most cases, this will be one, but some 616DSP targets have 16, 32, or even 48 bits per byte. 617 618@findex bfd_arch_mach_octets_per_byte 619@subsubsection @code{bfd_arch_mach_octets_per_byte} 620@strong{Synopsis} 621@example 622unsigned int bfd_arch_mach_octets_per_byte 623 (enum bfd_architecture arch, unsigned long machine); 624@end example 625@strong{Description}@* 626See bfd_octets_per_byte. 627 628This routine is provided for those cases where a bfd * is not 629available 630 631