config/config.sub

   1 #! /bin/sh
   2 # Configuration validation subroutine script.
   3 #   Copyright 1992-2023 Free Software Foundation, Inc.
   4
   5 # shellcheck disable=SC2006,SC2268 # see below for rationale
   6
   7 timestamp='2023-01-21'
   8
   9 # This file is free software; you can redistribute it and/or modify it
  10 # under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation, either version 3 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful, but
  15 # WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17 # General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program; if not, see <https://www.gnu.org/licenses/>.
  21 #
  22 # As a special exception to the GNU General Public License, if you
  23 # distribute this file as part of a program that contains a
  24 # configuration script generated by Autoconf, you may include it under
  25 # the same distribution terms that you use for the rest of that
  26 # program.  This Exception is an additional permission under section 7
  27 # of the GNU General Public License, version 3 ("GPLv3").
  28
  29
  30 # Please send patches to <config-patches@gnu.org>.
  31 #
  32 # Configuration subroutine to validate and canonicalize a configuration type.
  33 # Supply the specified configuration type as an argument.
  34 # If it is invalid, we print an error message on stderr and exit with code 1.
  35 # Otherwise, we print the canonical config type on stdout and succeed.
  36
  37 # You can get the latest version of this script from:
  38 # https://git.savannah.gnu.org/cgit/config.git/plain/config.sub
  39
  40 # This file is supposed to be the same for all GNU packages
  41 # and recognize all the CPU types, system types and aliases
  42 # that are meaningful with *any* GNU software.
  43 # Each package is responsible for reporting which valid configurations
  44 # it does not support.  The user should be able to distinguish
  45 # a failure to support a valid configuration from a meaningless
  46 # configuration.
  47
  48 # The goal of this file is to map all the various variations of a given
  49 # machine specification into a single specification in the form:
  50 #       CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
  51 # or in some cases, the newer four-part form:
  52 #       CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
  53 # It is wrong to echo any other type of specification.
  54
  55 # The "shellcheck disable" line above the timestamp inhibits complaints
  56 # about features and limitations of the classic Bourne shell that were
  57 # superseded or lifted in POSIX.  However, this script identifies a wide
  58 # variety of pre-POSIX systems that do not have POSIX shells at all, and
  59 # even some reasonably current systems (Solaris 10 as case-in-point) still
  60 # have a pre-POSIX /bin/sh.
  61
  62 me=`echo "$0" | sed -e 's,.*/,,'`
  63
  64 usage="\
  65 Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
  66
  67 Canonicalize a configuration name.
  68
  69 Options:
  70   -h, --help         print this help, then exit
  71   -t, --time-stamp   print date of last modification, then exit
  72   -v, --version      print version number, then exit
  73
  74 Report bugs and patches to <config-patches@gnu.org>."
  75
  76 version="\
  77 GNU config.sub ($timestamp)
  78
  79 Copyright 1992-2023 Free Software Foundation, Inc.
  80
  81 This is free software; see the source for copying conditions.  There is NO
  82 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
  83
  84 help="
  85 Try \`$me --help' for more information."
  86
  87 # Parse command line
  88 while test $# -gt 0 ; do
  89   case $1 in
  90     --time-stamp | --time* | -t )
  91        echo "$timestamp" ; exit ;;
  92     --version | -v )
  93        echo "$version" ; exit ;;
  94     --help | --h* | -h )
  95        echo "$usage"; exit ;;
  96     -- )     # Stop option processing
  97        shift; break ;;
  98     - ) # Use stdin as input.
  99        break ;;
 100     -* )
 101        echo "$me: invalid option $1$help" >&2
 102        exit 1 ;;
 103
 104     *local*)
 105        # First pass through any local machine types.
 106        echo "$1"
 107        exit ;;
 108
 109     * )
 110        break ;;
 111   esac
 112 done
 113
 114 case $# in
 115  0) echo "$me: missing argument$help" >&2
 116     exit 1;;
 117  1) ;;
 118  *) echo "$me: too many arguments$help" >&2
 119     exit 1;;
 120 esac
 121
 122 # Split fields of configuration type
 123 # shellcheck disable=SC2162
 124 saved_IFS=$IFS
 125 IFS="-" read field1 field2 field3 field4 <<EOF
 126 $1
 127 EOF
 128 IFS=$saved_IFS
 129
 130 # Separate into logical components for further validation
 131 case $1 in
 132         *-*-*-*-*)
 133                 echo Invalid configuration \`"$1"\': more than four components >&2
 134                 exit 1
 135                 ;;
 136         *-*-*-*)
 137                 basic_machine=$field1-$field2
 138                 basic_os=$field3-$field4
 139                 ;;
 140         *-*-*)
 141                 # Ambiguous whether COMPANY is present, or skipped and KERNEL-OS is two
 142                 # parts
 143                 maybe_os=$field2-$field3
 144                 case $maybe_os in
 145                         nto-qnx* | linux-* | uclinux-uclibc* \
 146                         | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* \
 147                         | netbsd*-eabi* | kopensolaris*-gnu* | cloudabi*-eabi* \
 148                         | storm-chaos* | os2-emx* | rtmk-nova* | managarm-*)
 149                                 basic_machine=$field1
 150                                 basic_os=$maybe_os
 151                                 ;;
 152                         android-linux)
 153                                 basic_machine=$field1-unknown
 154                                 basic_os=linux-android
 155                                 ;;
 156                         *)
 157                                 basic_machine=$field1-$field2
 158                                 basic_os=$field3
 159                                 ;;
 160                 esac
 161                 ;;
 162         *-*)
 163                 # A lone config we happen to match not fitting any pattern
 164                 case $field1-$field2 in
 165                         decstation-3100)
 166                                 basic_machine=mips-dec
 167                                 basic_os=
 168                                 ;;
 169                         *-*)
 170                                 # Second component is usually, but not always the OS
 171                                 case $field2 in
 172                                         # Prevent following clause from handling this valid os
 173                                         sun*os*)
 174                                                 basic_machine=$field1
 175                                                 basic_os=$field2
 176                                                 ;;
 177                                         zephyr*)
 178                                                 basic_machine=$field1-unknown
 179                                                 basic_os=$field2
 180                                                 ;;
 181                                         # Manufacturers
 182                                         dec* | mips* | sequent* | encore* | pc533* | sgi* | sony* \
 183                                         | att* | 7300* | 3300* | delta* | motorola* | sun[234]* \
 184                                         | unicom* | ibm* | next | hp | isi* | apollo | altos* \
 185                                         | convergent* | ncr* | news | 32* | 3600* | 3100* \
 186                                         | hitachi* | c[123]* | convex* | sun | crds | omron* | dg \
 187                                         | ultra | tti* | harris | dolphin | highlevel | gould \
 188                                         | cbm | ns | masscomp | apple | axis | knuth | cray \
 189                                         | microblaze* | sim | cisco \
 190                                         | oki | wec | wrs | winbond)
 191                                                 basic_machine=$field1-$field2
 192                                                 basic_os=
 193                                                 ;;
 194                                         *)
 195                                                 basic_machine=$field1
 196                                                 basic_os=$field2
 197                                                 ;;
 198                                 esac
 199                         ;;
 200                 esac
 201                 ;;
 202         *)
 203                 # Convert single-component short-hands not valid as part of
 204                 # multi-component configurations.
 205                 case $field1 in
 206                         386bsd)
 207                                 basic_machine=i386-pc
 208                                 basic_os=bsd
 209                                 ;;
 210                         a29khif)
 211                                 basic_machine=a29k-amd
 212                                 basic_os=udi
 213                                 ;;
 214                         adobe68k)
 215                                 basic_machine=m68010-adobe
 216                                 basic_os=scout
 217                                 ;;
 218                         alliant)
 219                                 basic_machine=fx80-alliant
 220                                 basic_os=
 221                                 ;;
 222                         altos | altos3068)
 223                                 basic_machine=m68k-altos
 224                                 basic_os=
 225                                 ;;
 226                         am29k)
 227                                 basic_machine=a29k-none
 228                                 basic_os=bsd
 229                                 ;;
 230                         amdahl)
 231                                 basic_machine=580-amdahl
 232                                 basic_os=sysv
 233                                 ;;
 234                         amiga)
 235                                 basic_machine=m68k-unknown
 236                                 basic_os=
 237                                 ;;
 238                         amigaos | amigados)
 239                                 basic_machine=m68k-unknown
 240                                 basic_os=amigaos
 241                                 ;;
 242                         amigaunix | amix)
 243                                 basic_machine=m68k-unknown
 244                                 basic_os=sysv4
 245                                 ;;
 246                         apollo68)
 247                                 basic_machine=m68k-apollo
 248                                 basic_os=sysv
 249                                 ;;
 250                         apollo68bsd)
 251                                 basic_machine=m68k-apollo
 252                                 basic_os=bsd
 253                                 ;;
 254                         aros)
 255                                 basic_machine=i386-pc
 256                                 basic_os=aros
 257                                 ;;
 258                         aux)
 259                                 basic_machine=m68k-apple
 260                                 basic_os=aux
 261                                 ;;
 262                         balance)
 263                                 basic_machine=ns32k-sequent
 264                                 basic_os=dynix
 265                                 ;;
 266                         blackfin)
 267                                 basic_machine=bfin-unknown
 268                                 basic_os=linux
 269                                 ;;
 270                         cegcc)
 271                                 basic_machine=arm-unknown
 272                                 basic_os=cegcc
 273                                 ;;
 274                         convex-c1)
 275                                 basic_machine=c1-convex
 276                                 basic_os=bsd
 277                                 ;;
 278                         convex-c2)
 279                                 basic_machine=c2-convex
 280                                 basic_os=bsd
 281                                 ;;
 282                         convex-c32)
 283                                 basic_machine=c32-convex
 284                                 basic_os=bsd
 285                                 ;;
 286                         convex-c34)
 287                                 basic_machine=c34-convex
 288                                 basic_os=bsd
 289                                 ;;
 290                         convex-c38)
 291                                 basic_machine=c38-convex
 292                                 basic_os=bsd
 293                                 ;;
 294                         cray)
 295                                 basic_machine=j90-cray
 296                                 basic_os=unicos
 297                                 ;;
 298                         crds | unos)
 299                                 basic_machine=m68k-crds
 300                                 basic_os=
 301                                 ;;
 302                         da30)
 303                                 basic_machine=m68k-da30
 304                                 basic_os=
 305                                 ;;
 306                         decstation | pmax | pmin | dec3100 | decstatn)
 307                                 basic_machine=mips-dec
 308                                 basic_os=
 309                                 ;;
 310                         delta88)
 311                                 basic_machine=m88k-motorola
 312                                 basic_os=sysv3
 313                                 ;;
 314                         dicos)
 315                                 basic_machine=i686-pc
 316                                 basic_os=dicos
 317                                 ;;
 318                         djgpp)
 319                                 basic_machine=i586-pc
 320                                 basic_os=msdosdjgpp
 321                                 ;;
 322                         ebmon29k)
 323                                 basic_machine=a29k-amd
 324                                 basic_os=ebmon
 325                                 ;;
 326                         es1800 | OSE68k | ose68k | ose | OSE)
 327                                 basic_machine=m68k-ericsson
 328                                 basic_os=ose
 329                                 ;;
 330                         gmicro)
 331                                 basic_machine=tron-gmicro
 332                                 basic_os=sysv
 333                                 ;;
 334                         go32)
 335                                 basic_machine=i386-pc
 336                                 basic_os=go32
 337                                 ;;
 338                         h8300hms)
 339                                 basic_machine=h8300-hitachi
 340                                 basic_os=hms
 341                                 ;;
 342                         h8300xray)
 343                                 basic_machine=h8300-hitachi
 344                                 basic_os=xray
 345                                 ;;
 346                         h8500hms)
 347                                 basic_machine=h8500-hitachi
 348                                 basic_os=hms
 349                                 ;;
 350                         harris)
 351                                 basic_machine=m88k-harris
 352                                 basic_os=sysv3
 353                                 ;;
 354                         hp300 | hp300hpux)
 355                                 basic_machine=m68k-hp
 356                                 basic_os=hpux
 357                                 ;;
 358                         hp300bsd)
 359                                 basic_machine=m68k-hp
 360                                 basic_os=bsd
 361                                 ;;
 362                         hppaosf)
 363                                 basic_machine=hppa1.1-hp
 364                                 basic_os=osf
 365                                 ;;
 366                         hppro)
 367                                 basic_machine=hppa1.1-hp
 368                                 basic_os=proelf
 369                                 ;;
 370                         i386mach)
 371                                 basic_machine=i386-mach
 372                                 basic_os=mach
 373                                 ;;
 374                         isi68 | isi)
 375                                 basic_machine=m68k-isi
 376                                 basic_os=sysv
 377                                 ;;
 378                         m68knommu)
 379                                 basic_machine=m68k-unknown
 380                                 basic_os=linux
 381                                 ;;
 382                         magnum | m3230)
 383                                 basic_machine=mips-mips
 384                                 basic_os=sysv
 385                                 ;;
 386                         merlin)
 387                                 basic_machine=ns32k-utek
 388                                 basic_os=sysv
 389                                 ;;
 390                         mingw64)
 391                                 basic_machine=x86_64-pc
 392                                 basic_os=mingw64
 393                                 ;;
 394                         mingw32)
 395                                 basic_machine=i686-pc
 396                                 basic_os=mingw32
 397                                 ;;
 398                         mingw32ce)
 399                                 basic_machine=arm-unknown
 400                                 basic_os=mingw32ce
 401                                 ;;
 402                         monitor)
 403                                 basic_machine=m68k-rom68k
 404                                 basic_os=coff
 405                                 ;;
 406                         morphos)
 407                                 basic_machine=powerpc-unknown
 408                                 basic_os=morphos
 409                                 ;;
 410                         moxiebox)
 411                                 basic_machine=moxie-unknown
 412                                 basic_os=moxiebox
 413                                 ;;
 414                         msdos)
 415                                 basic_machine=i386-pc
 416                                 basic_os=msdos
 417                                 ;;
 418                         msys)
 419                                 basic_machine=i686-pc
 420                                 basic_os=msys
 421                                 ;;
 422                         mvs)
 423                                 basic_machine=i370-ibm
 424                                 basic_os=mvs
 425                                 ;;
 426                         nacl)
 427                                 basic_machine=le32-unknown
 428                                 basic_os=nacl
 429                                 ;;
 430                         ncr3000)
 431                                 basic_machine=i486-ncr
 432                                 basic_os=sysv4
 433                                 ;;
 434                         netbsd386)
 435                                 basic_machine=i386-pc
 436                                 basic_os=netbsd
 437                                 ;;
 438                         netwinder)
 439                                 basic_machine=armv4l-rebel
 440                                 basic_os=linux
 441                                 ;;
 442                         news | news700 | news800 | news900)
 443                                 basic_machine=m68k-sony
 444                                 basic_os=newsos
 445                                 ;;
 446                         news1000)
 447                                 basic_machine=m68030-sony
 448                                 basic_os=newsos
 449                                 ;;
 450                         necv70)
 451                                 basic_machine=v70-nec
 452                                 basic_os=sysv
 453                                 ;;
 454                         nh3000)
 455                                 basic_machine=m68k-harris
 456                                 basic_os=cxux
 457                                 ;;
 458                         nh[45]000)
 459                                 basic_machine=m88k-harris
 460                                 basic_os=cxux
 461                                 ;;
 462                         nindy960)
 463                                 basic_machine=i960-intel
 464                                 basic_os=nindy
 465                                 ;;
 466                         mon960)
 467                                 basic_machine=i960-intel
 468                                 basic_os=mon960
 469                                 ;;
 470                         nonstopux)
 471                                 basic_machine=mips-compaq
 472                                 basic_os=nonstopux
 473                                 ;;
 474                         os400)
 475                                 basic_machine=powerpc-ibm
 476                                 basic_os=os400
 477                                 ;;
 478                         OSE68000 | ose68000)
 479                                 basic_machine=m68000-ericsson
 480                                 basic_os=ose
 481                                 ;;
 482                         os68k)
 483                                 basic_machine=m68k-none
 484                                 basic_os=os68k
 485                                 ;;
 486                         paragon)
 487                                 basic_machine=i860-intel
 488                                 basic_os=osf
 489                                 ;;
 490                         parisc)
 491                                 basic_machine=hppa-unknown
 492                                 basic_os=linux
 493                                 ;;
 494                         psp)
 495                                 basic_machine=mipsallegrexel-sony
 496                                 basic_os=psp
 497                                 ;;
 498                         pw32)
 499                                 basic_machine=i586-unknown
 500                                 basic_os=pw32
 501                                 ;;
 502                         rdos | rdos64)
 503                                 basic_machine=x86_64-pc
 504                                 basic_os=rdos
 505                                 ;;
 506                         rdos32)
 507                                 basic_machine=i386-pc
 508                                 basic_os=rdos
 509                                 ;;
 510                         rom68k)
 511                                 basic_machine=m68k-rom68k
 512                                 basic_os=coff
 513                                 ;;
 514                         sa29200)
 515                                 basic_machine=a29k-amd
 516                                 basic_os=udi
 517                                 ;;
 518                         sei)
 519                                 basic_machine=mips-sei
 520                                 basic_os=seiux
 521                                 ;;
 522                         sequent)
 523                                 basic_machine=i386-sequent
 524                                 basic_os=
 525                                 ;;
 526                         sps7)
 527                                 basic_machine=m68k-bull
 528                                 basic_os=sysv2
 529                                 ;;
 530                         st2000)
 531                                 basic_machine=m68k-tandem
 532                                 basic_os=
 533                                 ;;
 534                         stratus)
 535                                 basic_machine=i860-stratus
 536                                 basic_os=sysv4
 537                                 ;;
 538                         sun2)
 539                                 basic_machine=m68000-sun
 540                                 basic_os=
 541                                 ;;
 542                         sun2os3)
 543                                 basic_machine=m68000-sun
 544                                 basic_os=sunos3
 545                                 ;;
 546                         sun2os4)
 547                                 basic_machine=m68000-sun
 548                                 basic_os=sunos4
 549                                 ;;
 550                         sun3)
 551                                 basic_machine=m68k-sun
 552                                 basic_os=
 553                                 ;;
 554                         sun3os3)
 555                                 basic_machine=m68k-sun
 556                                 basic_os=sunos3
 557                                 ;;
 558                         sun3os4)
 559                                 basic_machine=m68k-sun
 560                                 basic_os=sunos4
 561                                 ;;
 562                         sun4)
 563                                 basic_machine=sparc-sun
 564                                 basic_os=
 565                                 ;;
 566                         sun4os3)
 567                                 basic_machine=sparc-sun
 568                                 basic_os=sunos3
 569                                 ;;
 570                         sun4os4)
 571                                 basic_machine=sparc-sun
 572                                 basic_os=sunos4
 573                                 ;;
 574                         sun4sol2)
 575                                 basic_machine=sparc-sun
 576                                 basic_os=solaris2
 577                                 ;;
 578                         sun386 | sun386i | roadrunner)
 579                                 basic_machine=i386-sun
 580                                 basic_os=
 581                                 ;;
 582                         sv1)
 583                                 basic_machine=sv1-cray
 584                                 basic_os=unicos
 585                                 ;;
 586                         symmetry)
 587                                 basic_machine=i386-sequent
 588                                 basic_os=dynix
 589                                 ;;
 590                         t3e)
 591                                 basic_machine=alphaev5-cray
 592                                 basic_os=unicos
 593                                 ;;
 594                         t90)
 595                                 basic_machine=t90-cray
 596                                 basic_os=unicos
 597                                 ;;
 598                         toad1)
 599                                 basic_machine=pdp10-xkl
 600                                 basic_os=tops20
 601                                 ;;
 602                         tpf)
 603                                 basic_machine=s390x-ibm
 604                                 basic_os=tpf
 605                                 ;;
 606                         udi29k)
 607                                 basic_machine=a29k-amd
 608                                 basic_os=udi
 609                                 ;;
 610                         ultra3)
 611                                 basic_machine=a29k-nyu
 612                                 basic_os=sym1
 613                                 ;;
 614                         v810 | necv810)
 615                                 basic_machine=v810-nec
 616                                 basic_os=none
 617                                 ;;
 618                         vaxv)
 619                                 basic_machine=vax-dec
 620                                 basic_os=sysv
 621                                 ;;
 622                         vms)
 623                                 basic_machine=vax-dec
 624                                 basic_os=vms
 625                                 ;;
 626                         vsta)
 627                                 basic_machine=i386-pc
 628                                 basic_os=vsta
 629                                 ;;
 630                         vxworks960)
 631                                 basic_machine=i960-wrs
 632                                 basic_os=vxworks
 633                                 ;;
 634                         vxworks68)
 635                                 basic_machine=m68k-wrs
 636                                 basic_os=vxworks
 637                                 ;;
 638                         vxworks29k)
 639                                 basic_machine=a29k-wrs
 640                                 basic_os=vxworks
 641                                 ;;
 642                         xbox)
 643                                 basic_machine=i686-pc
 644                                 basic_os=mingw32
 645                                 ;;
 646                         ymp)
 647                                 basic_machine=ymp-cray
 648                                 basic_os=unicos
 649                                 ;;
 650                         *)
 651                                 basic_machine=$1
 652                                 basic_os=
 653                                 ;;
 654                 esac
 655                 ;;
 656 esac
 657
 658 # Decode 1-component or ad-hoc basic machines
 659 case $basic_machine in
 660         # Here we handle the default manufacturer of certain CPU types.  It is in
 661         # some cases the only manufacturer, in others, it is the most popular.
 662         w89k)
 663                 cpu=hppa1.1
 664                 vendor=winbond
 665                 ;;
 666         op50n)
 667                 cpu=hppa1.1
 668                 vendor=oki
 669                 ;;
 670         op60c)
 671                 cpu=hppa1.1
 672                 vendor=oki
 673                 ;;
 674         ibm*)
 675                 cpu=i370
 676                 vendor=ibm
 677                 ;;
 678         orion105)
 679                 cpu=clipper
 680                 vendor=highlevel
 681                 ;;
 682         mac | mpw | mac-mpw)
 683                 cpu=m68k
 684                 vendor=apple
 685                 ;;
 686         pmac | pmac-mpw)
 687                 cpu=powerpc
 688                 vendor=apple
 689                 ;;
 690
 691         # Recognize the various machine names and aliases which stand
 692         # for a CPU type and a company and sometimes even an OS.
 693         3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
 694                 cpu=m68000
 695                 vendor=att
 696                 ;;
 697         3b*)
 698                 cpu=we32k
 699                 vendor=att
 700                 ;;
 701         bluegene*)
 702                 cpu=powerpc
 703                 vendor=ibm
 704                 basic_os=cnk
 705                 ;;
 706         decsystem10* | dec10*)
 707                 cpu=pdp10
 708                 vendor=dec
 709                 basic_os=tops10
 710                 ;;
 711         decsystem20* | dec20*)
 712                 cpu=pdp10
 713                 vendor=dec
 714                 basic_os=tops20
 715                 ;;
 716         delta | 3300 | motorola-3300 | motorola-delta \
 717               | 3300-motorola | delta-motorola)
 718                 cpu=m68k
 719                 vendor=motorola
 720                 ;;
 721         dpx2*)
 722                 cpu=m68k
 723                 vendor=bull
 724                 basic_os=sysv3
 725                 ;;
 726         encore | umax | mmax)
 727                 cpu=ns32k
 728                 vendor=encore
 729                 ;;
 730         elxsi)
 731                 cpu=elxsi
 732                 vendor=elxsi
 733                 basic_os=${basic_os:-bsd}
 734                 ;;
 735         fx2800)
 736                 cpu=i860
 737                 vendor=alliant
 738                 ;;
 739         genix)
 740                 cpu=ns32k
 741                 vendor=ns
 742                 ;;
 743         h3050r* | hiux*)
 744                 cpu=hppa1.1
 745                 vendor=hitachi
 746                 basic_os=hiuxwe2
 747                 ;;
 748         hp3k9[0-9][0-9] | hp9[0-9][0-9])
 749                 cpu=hppa1.0
 750                 vendor=hp
 751                 ;;
 752         hp9k2[0-9][0-9] | hp9k31[0-9])
 753                 cpu=m68000
 754                 vendor=hp
 755                 ;;
 756         hp9k3[2-9][0-9])
 757                 cpu=m68k
 758                 vendor=hp
 759                 ;;
 760         hp9k6[0-9][0-9] | hp6[0-9][0-9])
 761                 cpu=hppa1.0
 762                 vendor=hp
 763                 ;;
 764         hp9k7[0-79][0-9] | hp7[0-79][0-9])
 765                 cpu=hppa1.1
 766                 vendor=hp
 767                 ;;
 768         hp9k78[0-9] | hp78[0-9])
 769                 # FIXME: really hppa2.0-hp
 770                 cpu=hppa1.1
 771                 vendor=hp
 772                 ;;
 773         hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
 774                 # FIXME: really hppa2.0-hp
 775                 cpu=hppa1.1
 776                 vendor=hp
 777                 ;;
 778         hp9k8[0-9][13679] | hp8[0-9][13679])
 779                 cpu=hppa1.1
 780                 vendor=hp
 781                 ;;
 782         hp9k8[0-9][0-9] | hp8[0-9][0-9])
 783                 cpu=hppa1.0
 784                 vendor=hp
 785                 ;;
 786         i*86v32)
 787                 cpu=`echo "$1" | sed -e 's/86.*/86/'`
 788                 vendor=pc
 789                 basic_os=sysv32
 790                 ;;
 791         i*86v4*)
 792                 cpu=`echo "$1" | sed -e 's/86.*/86/'`
 793                 vendor=pc
 794                 basic_os=sysv4
 795                 ;;
 796         i*86v)
 797                 cpu=`echo "$1" | sed -e 's/86.*/86/'`
 798                 vendor=pc
 799                 basic_os=sysv
 800                 ;;
 801         i*86sol2)
 802                 cpu=`echo "$1" | sed -e 's/86.*/86/'`
 803                 vendor=pc
 804                 basic_os=solaris2
 805                 ;;
 806         j90 | j90-cray)
 807                 cpu=j90
 808                 vendor=cray
 809                 basic_os=${basic_os:-unicos}
 810                 ;;
 811         iris | iris4d)
 812                 cpu=mips
 813                 vendor=sgi
 814                 case $basic_os in
 815                     irix*)
 816                         ;;
 817                     *)
 818                         basic_os=irix4
 819                         ;;
 820                 esac
 821                 ;;
 822         miniframe)
 823                 cpu=m68000
 824                 vendor=convergent
 825                 ;;
 826         *mint | mint[0-9]* | *MiNT | *MiNT[0-9]*)
 827                 cpu=m68k
 828                 vendor=atari
 829                 basic_os=mint
 830                 ;;
 831         news-3600 | risc-news)
 832                 cpu=mips
 833                 vendor=sony
 834                 basic_os=newsos
 835                 ;;
 836         next | m*-next)
 837                 cpu=m68k
 838                 vendor=next
 839                 case $basic_os in
 840                     openstep*)
 841                         ;;
 842                     nextstep*)
 843                         ;;
 844                     ns2*)
 845                       basic_os=nextstep2
 846                         ;;
 847                     *)
 848                       basic_os=nextstep3
 849                         ;;
 850                 esac
 851                 ;;
 852         np1)
 853                 cpu=np1
 854                 vendor=gould
 855                 ;;
 856         op50n-* | op60c-*)
 857                 cpu=hppa1.1
 858                 vendor=oki
 859                 basic_os=proelf
 860                 ;;
 861         pa-hitachi)
 862                 cpu=hppa1.1
 863                 vendor=hitachi
 864                 basic_os=hiuxwe2
 865                 ;;
 866         pbd)
 867                 cpu=sparc
 868                 vendor=tti
 869                 ;;
 870         pbb)
 871                 cpu=m68k
 872                 vendor=tti
 873                 ;;
 874         pc532)
 875                 cpu=ns32k
 876                 vendor=pc532
 877                 ;;
 878         pn)
 879                 cpu=pn
 880                 vendor=gould
 881                 ;;
 882         power)
 883                 cpu=power
 884                 vendor=ibm
 885                 ;;
 886         ps2)
 887                 cpu=i386
 888                 vendor=ibm
 889                 ;;
 890         rm[46]00)
 891                 cpu=mips
 892                 vendor=siemens
 893                 ;;
 894         rtpc | rtpc-*)
 895                 cpu=romp
 896                 vendor=ibm
 897                 ;;
 898         sde)
 899                 cpu=mipsisa32
 900                 vendor=sde
 901                 basic_os=${basic_os:-elf}
 902                 ;;
 903         simso-wrs)
 904                 cpu=sparclite
 905                 vendor=wrs
 906                 basic_os=vxworks
 907                 ;;
 908         tower | tower-32)
 909                 cpu=m68k
 910                 vendor=ncr
 911                 ;;
 912         vpp*|vx|vx-*)
 913                 cpu=f301
 914                 vendor=fujitsu
 915                 ;;
 916         w65)
 917                 cpu=w65
 918                 vendor=wdc
 919                 ;;
 920         w89k-*)
 921                 cpu=hppa1.1
 922                 vendor=winbond
 923                 basic_os=proelf
 924                 ;;
 925         none)
 926                 cpu=none
 927                 vendor=none
 928                 ;;
 929         leon|leon[3-9])
 930                 cpu=sparc
 931                 vendor=$basic_machine
 932                 ;;
 933         leon-*|leon[3-9]-*)
 934                 cpu=sparc
 935                 vendor=`echo "$basic_machine" | sed 's/-.*//'`
 936                 ;;
 937
 938         *-*)
 939                 # shellcheck disable=SC2162
 940                 saved_IFS=$IFS
 941                 IFS="-" read cpu vendor <<EOF
 942 $basic_machine
 943 EOF
 944                 IFS=$saved_IFS
 945                 ;;
 946         # We use `pc' rather than `unknown'
 947         # because (1) that's what they normally are, and
 948         # (2) the word "unknown" tends to confuse beginning users.
 949         i*86 | x86_64)
 950                 cpu=$basic_machine
 951                 vendor=pc
 952                 ;;
 953         # These rules are duplicated from below for sake of the special case above;
 954         # i.e. things that normalized to x86 arches should also default to "pc"
 955         pc98)
 956                 cpu=i386
 957                 vendor=pc
 958                 ;;
 959         x64 | amd64)
 960                 cpu=x86_64
 961                 vendor=pc
 962                 ;;
 963         # Recognize the basic CPU types without company name.
 964         *)
 965                 cpu=$basic_machine
 966                 vendor=unknown
 967                 ;;
 968 esac
 969
 970 unset -v basic_machine
 971
 972 # Decode basic machines in the full and proper CPU-Company form.
 973 case $cpu-$vendor in
 974         # Here we handle the default manufacturer of certain CPU types in canonical form. It is in
 975         # some cases the only manufacturer, in others, it is the most popular.
 976         craynv-unknown)
 977                 vendor=cray
 978                 basic_os=${basic_os:-unicosmp}
 979                 ;;
 980         c90-unknown | c90-cray)
 981                 vendor=cray
 982                 basic_os=${Basic_os:-unicos}
 983                 ;;
 984         fx80-unknown)
 985                 vendor=alliant
 986                 ;;
 987         romp-unknown)
 988                 vendor=ibm
 989                 ;;
 990         mmix-unknown)
 991                 vendor=knuth
 992                 ;;
 993         microblaze-unknown | microblazeel-unknown)
 994                 vendor=xilinx
 995                 ;;
 996         rs6000-unknown)
 997                 vendor=ibm
 998                 ;;
 999         vax-unknown)
1000                 vendor=dec
1001                 ;;
1002         pdp11-unknown)
1003                 vendor=dec
1004                 ;;
1005         we32k-unknown)
1006                 vendor=att
1007                 ;;
1008         cydra-unknown)
1009                 vendor=cydrome
1010                 ;;
1011         i370-ibm*)
1012                 vendor=ibm
1013                 ;;
1014         orion-unknown)
1015                 vendor=highlevel
1016                 ;;
1017         xps-unknown | xps100-unknown)
1018                 cpu=xps100
1019                 vendor=honeywell
1020                 ;;
1021
1022         # Here we normalize CPU types with a missing or matching vendor
1023         armh-unknown | armh-alt)
1024                 cpu=armv7l
1025                 vendor=alt
1026                 basic_os=${basic_os:-linux-gnueabihf}
1027                 ;;
1028         dpx20-unknown | dpx20-bull)
1029                 cpu=rs6000
1030                 vendor=bull
1031                 basic_os=${basic_os:-bosx}
1032                 ;;
1033
1034         # Here we normalize CPU types irrespective of the vendor
1035         amd64-*)
1036                 cpu=x86_64
1037                 ;;
1038         blackfin-*)
1039                 cpu=bfin
1040                 basic_os=linux
1041                 ;;
1042         c54x-*)
1043                 cpu=tic54x
1044                 ;;
1045         c55x-*)
1046                 cpu=tic55x
1047                 ;;
1048         c6x-*)
1049                 cpu=tic6x
1050                 ;;
1051         e500v[12]-*)
1052                 cpu=powerpc
1053                 basic_os=${basic_os}"spe"
1054                 ;;
1055         mips3*-*)
1056                 cpu=mips64
1057                 ;;
1058         ms1-*)
1059                 cpu=mt
1060                 ;;
1061         m68knommu-*)
1062                 cpu=m68k
1063                 basic_os=linux
1064                 ;;
1065         m9s12z-* | m68hcs12z-* | hcs12z-* | s12z-*)
1066                 cpu=s12z
1067                 ;;
1068         openrisc-*)
1069                 cpu=or32
1070                 ;;
1071         parisc-*)
1072                 cpu=hppa
1073                 basic_os=linux
1074                 ;;
1075         pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
1076                 cpu=i586
1077                 ;;
1078         pentiumpro-* | p6-* | 6x86-* | athlon-* | athlon_*-*)
1079                 cpu=i686
1080                 ;;
1081         pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
1082                 cpu=i686
1083                 ;;
1084         pentium4-*)
1085                 cpu=i786
1086                 ;;
1087         pc98-*)
1088                 cpu=i386
1089                 ;;
1090         ppc-* | ppcbe-*)
1091                 cpu=powerpc
1092                 ;;
1093         ppcle-* | powerpclittle-*)
1094                 cpu=powerpcle
1095                 ;;
1096         ppc64-*)
1097                 cpu=powerpc64
1098                 ;;
1099         ppc64le-* | powerpc64little-*)
1100                 cpu=powerpc64le
1101                 ;;
1102         sb1-*)
1103                 cpu=mipsisa64sb1
1104                 ;;
1105         sb1el-*)
1106                 cpu=mipsisa64sb1el
1107                 ;;
1108         sh5e[lb]-*)
1109                 cpu=`echo "$cpu" | sed 's/^\(sh.\)e\(.\)$/\1\2e/'`
1110                 ;;
1111         spur-*)
1112                 cpu=spur
1113                 ;;
1114         strongarm-* | thumb-*)
1115                 cpu=arm
1116                 ;;
1117         tx39-*)
1118                 cpu=mipstx39
1119                 ;;
1120         tx39el-*)
1121                 cpu=mipstx39el
1122                 ;;
1123         x64-*)
1124                 cpu=x86_64
1125                 ;;
1126         xscale-* | xscalee[bl]-*)
1127                 cpu=`echo "$cpu" | sed 's/^xscale/arm/'`
1128                 ;;
1129         arm64-* | aarch64le-*)
1130                 cpu=aarch64
1131                 ;;
1132
1133         # Recognize the canonical CPU Types that limit and/or modify the
1134         # company names they are paired with.
1135         cr16-*)
1136                 basic_os=${basic_os:-elf}
1137                 ;;
1138         crisv32-* | etraxfs*-*)
1139                 cpu=crisv32
1140                 vendor=axis
1141                 ;;
1142         cris-* | etrax*-*)
1143                 cpu=cris
1144                 vendor=axis
1145                 ;;
1146         crx-*)
1147                 basic_os=${basic_os:-elf}
1148                 ;;
1149         neo-tandem)
1150                 cpu=neo
1151                 vendor=tandem
1152                 ;;
1153         nse-tandem)
1154                 cpu=nse
1155                 vendor=tandem
1156                 ;;
1157         nsr-tandem)
1158                 cpu=nsr
1159                 vendor=tandem
1160                 ;;
1161         nsv-tandem)
1162                 cpu=nsv
1163                 vendor=tandem
1164                 ;;
1165         nsx-tandem)
1166                 cpu=nsx
1167                 vendor=tandem
1168                 ;;
1169         mipsallegrexel-sony)
1170                 cpu=mipsallegrexel
1171                 vendor=sony
1172                 ;;
1173         tile*-*)
1174                 basic_os=${basic_os:-linux-gnu}
1175                 ;;
1176
1177         *)
1178                 # Recognize the canonical CPU types that are allowed with any
1179                 # company name.
1180                 case $cpu in
1181                         1750a | 580 \
1182                         | a29k \
1183                         | aarch64 | aarch64_be \
1184                         | abacus \
1185                         | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] \
1186                         | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] \
1187                         | alphapca5[67] | alpha64pca5[67] \
1188                         | am33_2.0 \
1189                         | amdgcn \
1190                         | arc | arceb | arc32 | arc64 \
1191                         | arm | arm[lb]e | arme[lb] | armv* \
1192                         | avr | avr32 \
1193                         | asmjs \
1194                         | ba \
1195                         | be32 | be64 \
1196                         | bfin | bpf | bs2000 \
1197                         | c[123]* | c30 | [cjt]90 | c4x \
1198                         | c8051 | clipper | craynv | csky | cydra \
1199                         | d10v | d30v | dlx | dsp16xx \
1200                         | e2k | elxsi | epiphany \
1201                         | f30[01] | f700 | fido | fr30 | frv | ft32 | fx80 \
1202                         | h8300 | h8500 \
1203                         | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
1204                         | hexagon \
1205                         | i370 | i*86 | i860 | i960 | ia16 | ia64 \
1206                         | ip2k | iq2000 \
1207                         | k1om \
1208                         | le32 | le64 \
1209                         | lm32 \
1210                         | loongarch32 | loongarch64 \
1211                         | m32c | m32r | m32rle \
1212                         | m5200 | m68000 | m680[012346]0 | m68360 | m683?2 | m68k \
1213                         | m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x \
1214                         | m88110 | m88k | maxq | mb | mcore | mep | metag \
1215                         | microblaze | microblazeel \
1216                         | mips | mipsbe | mipseb | mipsel | mipsle \
1217                         | mips16 \
1218                         | mips64 | mips64eb | mips64el \
1219                         | mips64octeon | mips64octeonel \
1220                         | mips64orion | mips64orionel \
1221                         | mips64r5900 | mips64r5900el \
1222                         | mips64vr | mips64vrel \
1223                         | mips64vr4100 | mips64vr4100el \
1224                         | mips64vr4300 | mips64vr4300el \
1225                         | mips64vr5000 | mips64vr5000el \
1226                         | mips64vr5900 | mips64vr5900el \
1227                         | mipsisa32 | mipsisa32el \
1228                         | mipsisa32r2 | mipsisa32r2el \
1229                         | mipsisa32r3 | mipsisa32r3el \
1230                         | mipsisa32r5 | mipsisa32r5el \
1231                         | mipsisa32r6 | mipsisa32r6el \
1232                         | mipsisa64 | mipsisa64el \
1233                         | mipsisa64r2 | mipsisa64r2el \
1234                         | mipsisa64r3 | mipsisa64r3el \
1235                         | mipsisa64r5 | mipsisa64r5el \
1236                         | mipsisa64r6 | mipsisa64r6el \
1237                         | mipsisa64sb1 | mipsisa64sb1el \
1238                         | mipsisa64sr71k | mipsisa64sr71kel \
1239                         | mipsr5900 | mipsr5900el \
1240                         | mipstx39 | mipstx39el \
1241                         | mmix \
1242                         | mn10200 | mn10300 \
1243                         | moxie \
1244                         | mt \
1245                         | msp430 \
1246                         | nds32 | nds32le | nds32be \
1247                         | nfp \
1248                         | nios | nios2 | nios2eb | nios2el \
1249                         | none | np1 | ns16k | ns32k | nvptx \
1250                         | open8 \
1251                         | or1k* \
1252                         | or32 \
1253                         | orion \
1254                         | picochip \
1255                         | pdp10 | pdp11 | pj | pjl | pn | power \
1256                         | powerpc | powerpc64 | powerpc64le | powerpcle | powerpcspe \
1257                         | pru \
1258                         | pyramid \
1259                         | riscv | riscv32 | riscv32be | riscv64 | riscv64be \
1260                         | rl78 | romp | rs6000 | rx \
1261                         | s390 | s390x \
1262                         | score \
1263                         | sh | shl \
1264                         | sh[1234] | sh[24]a | sh[24]ae[lb] | sh[23]e | she[lb] | sh[lb]e \
1265                         | sh[1234]e[lb] |  sh[12345][lb]e | sh[23]ele | sh64 | sh64le \
1266                         | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet \
1267                         | sparclite \
1268                         | sparcv8 | sparcv9 | sparcv9b | sparcv9v | sv1 | sx* \
1269                         | spu \
1270                         | tahoe \
1271                         | thumbv7* \
1272                         | tic30 | tic4x | tic54x | tic55x | tic6x | tic80 \
1273                         | tron \
1274                         | ubicom32 \
1275                         | v70 | v850 | v850e | v850e1 | v850es | v850e2 | v850e2v3 \
1276                         | vax \
1277                         | visium \
1278                         | w65 \
1279                         | wasm32 | wasm64 \
1280                         | we32k \
1281                         | x86 | x86_64 | xc16x | xgate | xps100 \
1282                         | xstormy16 | xtensa* \
1283                         | ymp \
1284                         | z8k | z80)
1285                                 ;;
1286
1287                         *)
1288                                 echo Invalid configuration \`"$1"\': machine \`"$cpu-$vendor"\' not recognized 1>&2
1289                                 exit 1
1290                                 ;;
1291                 esac
1292                 ;;
1293 esac
1294
1295 # Here we canonicalize certain aliases for manufacturers.
1296 case $vendor in
1297         digital*)
1298                 vendor=dec
1299                 ;;
1300         commodore*)
1301                 vendor=cbm
1302                 ;;
1303         *)
1304                 ;;
1305 esac
1306
1307 # Decode manufacturer-specific aliases for certain operating systems.
1308
1309 if test x$basic_os != x
1310 then
1311
1312 # First recognize some ad-hoc cases, or perhaps split kernel-os, or else just
1313 # set os.
1314 case $basic_os in
1315         gnu/linux*)
1316                 kernel=linux
1317                 os=`echo "$basic_os" | sed -e 's|gnu/linux|gnu|'`
1318                 ;;
1319         os2-emx)
1320                 kernel=os2
1321                 os=`echo "$basic_os" | sed -e 's|os2-emx|emx|'`
1322                 ;;
1323         nto-qnx*)
1324                 kernel=nto
1325                 os=`echo "$basic_os" | sed -e 's|nto-qnx|qnx|'`
1326                 ;;
1327         *-*)
1328                 # shellcheck disable=SC2162
1329                 saved_IFS=$IFS
1330                 IFS="-" read kernel os <<EOF
1331 $basic_os
1332 EOF
1333                 IFS=$saved_IFS
1334                 ;;
1335         # Default OS when just kernel was specified
1336         nto*)
1337                 kernel=nto
1338                 os=`echo "$basic_os" | sed -e 's|nto|qnx|'`
1339                 ;;
1340         linux*)
1341                 kernel=linux
1342                 os=`echo "$basic_os" | sed -e 's|linux|gnu|'`
1343                 ;;
1344         managarm*)
1345                 kernel=managarm
1346                 os=`echo "$basic_os" | sed -e 's|managarm|mlibc|'`
1347                 ;;
1348         *)
1349                 kernel=
1350                 os=$basic_os
1351                 ;;
1352 esac
1353
1354 # Now, normalize the OS (knowing we just have one component, it's not a kernel,
1355 # etc.)
1356 case $os in
1357         # First match some system type aliases that might get confused
1358         # with valid system types.
1359         # solaris* is a basic system type, with this one exception.
1360         auroraux)
1361                 os=auroraux
1362                 ;;
1363         bluegene*)
1364                 os=cnk
1365                 ;;
1366         solaris1 | solaris1.*)
1367                 os=`echo "$os" | sed -e 's|solaris1|sunos4|'`
1368                 ;;
1369         solaris)
1370                 os=solaris2
1371                 ;;
1372         unixware*)
1373                 os=sysv4.2uw
1374                 ;;
1375         # es1800 is here to avoid being matched by es* (a different OS)
1376         es1800*)
1377                 os=ose
1378                 ;;
1379         # Some version numbers need modification
1380         chorusos*)
1381                 os=chorusos
1382                 ;;
1383         isc)
1384                 os=isc2.2
1385                 ;;
1386         sco6)
1387                 os=sco5v6
1388                 ;;
1389         sco5)
1390                 os=sco3.2v5
1391                 ;;
1392         sco4)
1393                 os=sco3.2v4
1394                 ;;
1395         sco3.2.[4-9]*)
1396                 os=`echo "$os" | sed -e 's/sco3.2./sco3.2v/'`
1397                 ;;
1398         sco*v* | scout)
1399                 # Don't match below
1400                 ;;
1401         sco*)
1402                 os=sco3.2v2
1403                 ;;
1404         psos*)
1405                 os=psos
1406                 ;;
1407         qnx*)
1408                 os=qnx
1409                 ;;
1410         hiux*)
1411                 os=hiuxwe2
1412                 ;;
1413         lynx*178)
1414                 os=lynxos178
1415                 ;;
1416         lynx*5)
1417                 os=lynxos5
1418                 ;;
1419         lynxos*)
1420                 # don't get caught up in next wildcard
1421                 ;;
1422         lynx*)
1423                 os=lynxos
1424                 ;;
1425         mac[0-9]*)
1426                 os=`echo "$os" | sed -e 's|mac|macos|'`
1427                 ;;
1428         opened*)
1429                 os=openedition
1430                 ;;
1431         os400*)
1432                 os=os400
1433                 ;;
1434         sunos5*)
1435                 os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
1436                 ;;
1437         sunos6*)
1438                 os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
1439                 ;;
1440         wince*)
1441                 os=wince
1442                 ;;
1443         utek*)
1444                 os=bsd
1445                 ;;
1446         dynix*)
1447                 os=bsd
1448                 ;;
1449         acis*)
1450                 os=aos
1451                 ;;
1452         atheos*)
1453                 os=atheos
1454                 ;;
1455         syllable*)
1456                 os=syllable
1457                 ;;
1458         386bsd)
1459                 os=bsd
1460                 ;;
1461         ctix* | uts*)
1462                 os=sysv
1463                 ;;
1464         nova*)
1465                 os=rtmk-nova
1466                 ;;
1467         ns2)
1468                 os=nextstep2
1469                 ;;
1470         # Preserve the version number of sinix5.
1471         sinix5.*)
1472                 os=`echo "$os" | sed -e 's|sinix|sysv|'`
1473                 ;;
1474         sinix*)
1475                 os=sysv4
1476                 ;;
1477         tpf*)
1478                 os=tpf
1479                 ;;
1480         triton*)
1481                 os=sysv3
1482                 ;;
1483         oss*)
1484                 os=sysv3
1485                 ;;
1486         svr4*)
1487                 os=sysv4
1488                 ;;
1489         svr3)
1490                 os=sysv3
1491                 ;;
1492         sysvr4)
1493                 os=sysv4
1494                 ;;
1495         ose*)
1496                 os=ose
1497                 ;;
1498         *mint | mint[0-9]* | *MiNT | MiNT[0-9]*)
1499                 os=mint
1500                 ;;
1501         dicos*)
1502                 os=dicos
1503                 ;;
1504         pikeos*)
1505                 # Until real need of OS specific support for
1506                 # particular features comes up, bare metal
1507                 # configurations are quite functional.
1508                 case $cpu in
1509                     arm*)
1510                         os=eabi
1511                         ;;
1512                     *)
1513                         os=elf
1514                         ;;
1515                 esac
1516                 ;;
1517         *)
1518                 # No normalization, but not necessarily accepted, that comes below.
1519                 ;;
1520 esac
1521
1522 else
1523
1524 # Here we handle the default operating systems that come with various machines.
1525 # The value should be what the vendor currently ships out the door with their
1526 # machine or put another way, the most popular os provided with the machine.
1527
1528 # Note that if you're going to try to match "-MANUFACTURER" here (say,
1529 # "-sun"), then you have to tell the case statement up towards the top
1530 # that MANUFACTURER isn't an operating system.  Otherwise, code above
1531 # will signal an error saying that MANUFACTURER isn't an operating
1532 # system, and we'll never get to this point.
1533
1534 kernel=
1535 case $cpu-$vendor in
1536         score-*)
1537                 os=elf
1538                 ;;
1539         spu-*)
1540                 os=elf
1541                 ;;
1542         *-acorn)
1543                 os=riscix1.2
1544                 ;;
1545         arm*-rebel)
1546                 kernel=linux
1547                 os=gnu
1548                 ;;
1549         arm*-semi)
1550                 os=aout
1551                 ;;
1552         c4x-* | tic4x-*)
1553                 os=coff
1554                 ;;
1555         c8051-*)
1556                 os=elf
1557                 ;;
1558         clipper-intergraph)
1559                 os=clix
1560                 ;;
1561         hexagon-*)
1562                 os=elf
1563                 ;;
1564         tic54x-*)
1565                 os=coff
1566                 ;;
1567         tic55x-*)
1568                 os=coff
1569                 ;;
1570         tic6x-*)
1571                 os=coff
1572                 ;;
1573         # This must come before the *-dec entry.
1574         pdp10-*)
1575                 os=tops20
1576                 ;;
1577         pdp11-*)
1578                 os=none
1579                 ;;
1580         *-dec | vax-*)
1581                 os=ultrix4.2
1582                 ;;
1583         m68*-apollo)
1584                 os=domain
1585                 ;;
1586         i386-sun)
1587                 os=sunos4.0.2
1588                 ;;
1589         m68000-sun)
1590                 os=sunos3
1591                 ;;
1592         m68*-cisco)
1593                 os=aout
1594                 ;;
1595         mep-*)
1596                 os=elf
1597                 ;;
1598         mips*-cisco)
1599                 os=elf
1600                 ;;
1601         mips*-*)
1602                 os=elf
1603                 ;;
1604         or32-*)
1605                 os=coff
1606                 ;;
1607         *-tti)  # must be before sparc entry or we get the wrong os.
1608                 os=sysv3
1609                 ;;
1610         sparc-* | *-sun)
1611                 os=sunos4.1.1
1612                 ;;
1613         pru-*)
1614                 os=elf
1615                 ;;
1616         *-be)
1617                 os=beos
1618                 ;;
1619         *-ibm)
1620                 os=aix
1621                 ;;
1622         *-knuth)
1623                 os=mmixware
1624                 ;;
1625         *-wec)
1626                 os=proelf
1627                 ;;
1628         *-winbond)
1629                 os=proelf
1630                 ;;
1631         *-oki)
1632                 os=proelf
1633                 ;;
1634         *-hp)
1635                 os=hpux
1636                 ;;
1637         *-hitachi)
1638                 os=hiux
1639                 ;;
1640         i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
1641                 os=sysv
1642                 ;;
1643         *-cbm)
1644                 os=amigaos
1645                 ;;
1646         *-dg)
1647                 os=dgux
1648                 ;;
1649         *-dolphin)
1650                 os=sysv3
1651                 ;;
1652         m68k-ccur)
1653                 os=rtu
1654                 ;;
1655         m88k-omron*)
1656                 os=luna
1657                 ;;
1658         *-next)
1659                 os=nextstep
1660                 ;;
1661         *-sequent)
1662                 os=ptx
1663                 ;;
1664         *-crds)
1665                 os=unos
1666                 ;;
1667         *-ns)
1668                 os=genix
1669                 ;;
1670         i370-*)
1671                 os=mvs
1672                 ;;
1673         *-gould)
1674                 os=sysv
1675                 ;;
1676         *-highlevel)
1677                 os=bsd
1678                 ;;
1679         *-encore)
1680                 os=bsd
1681                 ;;
1682         *-sgi)
1683                 os=irix
1684                 ;;
1685         *-siemens)
1686                 os=sysv4
1687                 ;;
1688         *-masscomp)
1689                 os=rtu
1690                 ;;
1691         f30[01]-fujitsu | f700-fujitsu)
1692                 os=uxpv
1693                 ;;
1694         *-rom68k)
1695                 os=coff
1696                 ;;
1697         *-*bug)
1698                 os=coff
1699                 ;;
1700         *-apple)
1701                 os=macos
1702                 ;;
1703         *-atari*)
1704                 os=mint
1705                 ;;
1706         *-wrs)
1707                 os=vxworks
1708                 ;;
1709         *)
1710                 os=none
1711                 ;;
1712 esac
1713
1714 fi
1715
1716 # Now, validate our (potentially fixed-up) OS.
1717 case $os in
1718         # Sometimes we do "kernel-libc", so those need to count as OSes.
1719         musl* | newlib* | relibc* | uclibc*)
1720                 ;;
1721         # Likewise for "kernel-abi"
1722         eabi* | gnueabi*)
1723                 ;;
1724         # VxWorks passes extra cpu info in the 4th field.
1725         simlinux | simwindows | spe)
1726                 ;;
1727         # Now accept the basic system types.
1728         # The portable systems comes first.
1729         # Each alternative MUST end in a * to match a version number.
1730         gnu* | android* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
1731              | *vms* | esix* | aix* | cnk* | sunos | sunos[34]* \
1732              | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
1733              | sym* |  plan9* | psp* | sim* | xray* | os68k* | v88r* \
1734              | hiux* | abug | nacl* | netware* | windows* \
1735              | os9* | macos* | osx* | ios* \
1736              | mpw* | magic* | mmixware* | mon960* | lnews* \
1737              | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \
1738              | aos* | aros* | cloudabi* | sortix* | twizzler* \
1739              | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \
1740              | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \
1741              | mirbsd* | netbsd* | dicos* | openedition* | ose* \
1742              | bitrig* | openbsd* | secbsd* | solidbsd* | libertybsd* | os108* \
1743              | ekkobsd* | freebsd* | riscix* | lynxos* | os400* \
1744              | bosx* | nextstep* | cxux* | aout* | elf* | oabi* \
1745              | ptx* | coff* | ecoff* | winnt* | domain* | vsta* \
1746              | udi* | lites* | ieee* | go32* | aux* | hcos* \
1747              | chorusrdb* | cegcc* | glidix* | serenity* \
1748              | cygwin* | msys* | pe* | moss* | proelf* | rtems* \
1749              | midipix* | mingw32* | mingw64* | mint* \
1750              | uxpv* | beos* | mpeix* | udk* | moxiebox* \
1751              | interix* | uwin* | mks* | rhapsody* | darwin* \
1752              | openstep* | oskit* | conix* | pw32* | nonstopux* \
1753              | storm-chaos* | tops10* | tenex* | tops20* | its* \
1754              | os2* | vos* | palmos* | uclinux* | nucleus* | morphos* \
1755              | scout* | superux* | sysv* | rtmk* | tpf* | windiss* \
1756              | powermax* | dnix* | nx6 | nx7 | sei* | dragonfly* \
1757              | skyos* | haiku* | rdos* | toppers* | drops* | es* \
1758              | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
1759              | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
1760              | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
1761              | fiwix* | mlibc* )
1762                 ;;
1763         # This one is extra strict with allowed versions
1764         sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
1765                 # Don't forget version if it is 3.2v4 or newer.
1766                 ;;
1767         none)
1768                 ;;
1769         kernel* )
1770                 # Restricted further below
1771                 ;;
1772         *)
1773                 echo Invalid configuration \`"$1"\': OS \`"$os"\' not recognized 1>&2
1774                 exit 1
1775                 ;;
1776 esac
1777
1778 # As a final step for OS-related things, validate the OS-kernel combination
1779 # (given a valid OS), if there is a kernel.
1780 case $kernel-$os in
1781         linux-gnu* | linux-dietlibc* | linux-android* | linux-newlib* \
1782                    | linux-musl* | linux-relibc* | linux-uclibc* | linux-mlibc* )
1783                 ;;
1784         uclinux-uclibc* )
1785                 ;;
1786         managarm-mlibc* | managarm-kernel* )
1787                 ;;
1788         -dietlibc* | -newlib* | -musl* | -relibc* | -uclibc* | -mlibc* )
1789                 # These are just libc implementations, not actual OSes, and thus
1790                 # require a kernel.
1791                 echo "Invalid configuration \`$1': libc \`$os' needs explicit kernel." 1>&2
1792                 exit 1
1793                 ;;
1794         -kernel* )
1795                 echo "Invalid configuration \`$1': \`$os' needs explicit kernel." 1>&2
1796                 exit 1
1797                 ;;
1798         *-kernel* )
1799                 echo "Invalid configuration \`$1': \`$kernel' does not support \`$os'." 1>&2
1800                 exit 1
1801                 ;;
1802         kfreebsd*-gnu* | kopensolaris*-gnu*)
1803                 ;;
1804         vxworks-simlinux | vxworks-simwindows | vxworks-spe)
1805                 ;;
1806         nto-qnx*)
1807                 ;;
1808         os2-emx)
1809                 ;;
1810         *-eabi* | *-gnueabi*)
1811                 ;;
1812         -*)
1813                 # Blank kernel with real OS is always fine.
1814                 ;;
1815         *-*)
1816                 echo "Invalid configuration \`$1': Kernel \`$kernel' not known to work with OS \`$os'." 1>&2
1817                 exit 1
1818                 ;;
1819 esac
1820
1821 # Here we handle the case where we know the os, and the CPU type, but not the
1822 # manufacturer.  We pick the logical manufacturer.
1823 case $vendor in
1824         unknown)
1825                 case $cpu-$os in
1826                         *-riscix*)
1827                                 vendor=acorn
1828                                 ;;
1829                         *-sunos*)
1830                                 vendor=sun
1831                                 ;;
1832                         *-cnk* | *-aix*)
1833                                 vendor=ibm
1834                                 ;;
1835                         *-beos*)
1836                                 vendor=be
1837                                 ;;
1838                         *-hpux*)
1839                                 vendor=hp
1840                                 ;;
1841                         *-mpeix*)
1842                                 vendor=hp
1843                                 ;;
1844                         *-hiux*)
1845                                 vendor=hitachi
1846                                 ;;
1847                         *-unos*)
1848                                 vendor=crds
1849                                 ;;
1850                         *-dgux*)
1851                                 vendor=dg
1852                                 ;;
1853                         *-luna*)
1854                                 vendor=omron
1855                                 ;;
1856                         *-genix*)
1857                                 vendor=ns
1858                                 ;;
1859                         *-clix*)
1860                                 vendor=intergraph
1861                                 ;;
1862                         *-mvs* | *-opened*)
1863                                 vendor=ibm
1864                                 ;;
1865                         *-os400*)
1866                                 vendor=ibm
1867                                 ;;
1868                         s390-* | s390x-*)
1869                                 vendor=ibm
1870                                 ;;
1871                         *-ptx*)
1872                                 vendor=sequent
1873                                 ;;
1874                         *-tpf*)
1875                                 vendor=ibm
1876                                 ;;
1877                         *-vxsim* | *-vxworks* | *-windiss*)
1878                                 vendor=wrs
1879                                 ;;
1880                         *-aux*)
1881                                 vendor=apple
1882                                 ;;
1883                         *-hms*)
1884                                 vendor=hitachi
1885                                 ;;
1886                         *-mpw* | *-macos*)
1887                                 vendor=apple
1888                                 ;;
1889                         *-*mint | *-mint[0-9]* | *-*MiNT | *-MiNT[0-9]*)
1890                                 vendor=atari
1891                                 ;;
1892                         *-vos*)
1893                                 vendor=stratus
1894                                 ;;
1895                 esac
1896                 ;;
1897 esac
1898
1899 echo "$cpu-$vendor-${kernel:+$kernel-}$os"
1900 exit
1901
1902 # Local variables:
1903 # eval: (add-hook 'before-save-hook 'time-stamp)
1904 # time-stamp-start: "timestamp='"
1905 # time-stamp-format: "%:y-%02m-%02d"
1906 # time-stamp-end: "'"
1907 # End: