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='2023-06-26'
   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 $maybe_os in
 145                         nto-qnx* | linux-* | uclinux-uclibc* \
 146                         | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* \
 147                         | netbsd*-eabi* | kopensolaris*-gnu* | cloudabi*-eabi* \
 148                         | storm-chaos* | os2-emx* | rtmk-nova* | managarm-* \
 149                         | windows-* )
 150                                 basic_machine=$field1
 151                                 basic_os=$maybe_os
 152                                 ;;
 153                         android-linux)
 154                                 basic_machine=$field1-unknown
 155                                 basic_os=linux-android
 156                                 ;;
 157                         *)
 158                                 basic_machine=$field1-$field2
 159                                 basic_os=$field3
 160                                 ;;
 161                 esac
 162                 ;;
 163         *-*)
 164                 # A lone config we happen to match not fitting any pattern
 165                 case $field1-$field2 in
 166                         decstation-3100)
 167                                 basic_machine=mips-dec
 168                                 basic_os=
 169                                 ;;
 170                         *-*)
 171                                 # Second component is usually, but not always the OS
 172                                 case $field2 in
 173                                         # Prevent following clause from handling this valid os
 174                                         sun*os*)
 175                                                 basic_machine=$field1
 176                                                 basic_os=$field2
 177                                                 ;;
 178                                         zephyr*)
 179                                                 basic_machine=$field1-unknown
 180                                                 basic_os=$field2
 181                                                 ;;
 182                                         # Manufacturers
 183                                         dec* | mips* | sequent* | encore* | pc533* | sgi* | sony* \
 184                                         | att* | 7300* | 3300* | delta* | motorola* | sun[234]* \
 185                                         | unicom* | ibm* | next | hp | isi* | apollo | altos* \
 186                                         | convergent* | ncr* | news | 32* | 3600* | 3100* \
 187                                         | hitachi* | c[123]* | convex* | sun | crds | omron* | dg \
 188                                         | ultra | tti* | harris | dolphin | highlevel | gould \
 189                                         | cbm | ns | masscomp | apple | axis | knuth | cray \
 190                                         | microblaze* | sim | cisco \
 191                                         | oki | wec | wrs | winbond)
 192                                                 basic_machine=$field1-$field2
 193                                                 basic_os=
 194                                                 ;;
 195                                         *)
 196                                                 basic_machine=$field1
 197                                                 basic_os=$field2
 198                                                 ;;
 199                                 esac
 200                         ;;
 201                 esac
 202                 ;;
 203         *)
 204                 # Convert single-component short-hands not valid as part of
 205                 # multi-component configurations.
 206                 case $field1 in
 207                         386bsd)
 208                                 basic_machine=i386-pc
 209                                 basic_os=bsd
 210                                 ;;
 211                         a29khif)
 212                                 basic_machine=a29k-amd
 213                                 basic_os=udi
 214                                 ;;
 215                         adobe68k)
 216                                 basic_machine=m68010-adobe
 217                                 basic_os=scout
 218                                 ;;
 219                         alliant)
 220                                 basic_machine=fx80-alliant
 221                                 basic_os=
 222                                 ;;
 223                         altos | altos3068)
 224                                 basic_machine=m68k-altos
 225                                 basic_os=
 226                                 ;;
 227                         am29k)
 228                                 basic_machine=a29k-none
 229                                 basic_os=bsd
 230                                 ;;
 231                         amdahl)
 232                                 basic_machine=580-amdahl
 233                                 basic_os=sysv
 234                                 ;;
 235                         amiga)
 236                                 basic_machine=m68k-unknown
 237                                 basic_os=
 238                                 ;;
 239                         amigaos | amigados)
 240                                 basic_machine=m68k-unknown
 241                                 basic_os=amigaos
 242                                 ;;
 243                         amigaunix | amix)
 244                                 basic_machine=m68k-unknown
 245                                 basic_os=sysv4
 246                                 ;;
 247                         apollo68)
 248                                 basic_machine=m68k-apollo
 249                                 basic_os=sysv
 250                                 ;;
 251                         apollo68bsd)
 252                                 basic_machine=m68k-apollo
 253                                 basic_os=bsd
 254                                 ;;
 255                         aros)
 256                                 basic_machine=i386-pc
 257                                 basic_os=aros
 258                                 ;;
 259                         aux)
 260                                 basic_machine=m68k-apple
 261                                 basic_os=aux
 262                                 ;;
 263                         balance)
 264                                 basic_machine=ns32k-sequent
 265                                 basic_os=dynix
 266                                 ;;
 267                         blackfin)
 268                                 basic_machine=bfin-unknown
 269                                 basic_os=linux
 270                                 ;;
 271                         cegcc)
 272                                 basic_machine=arm-unknown
 273                                 basic_os=cegcc
 274                                 ;;
 275                         convex-c1)
 276                                 basic_machine=c1-convex
 277                                 basic_os=bsd
 278                                 ;;
 279                         convex-c2)
 280                                 basic_machine=c2-convex
 281                                 basic_os=bsd
 282                                 ;;
 283                         convex-c32)
 284                                 basic_machine=c32-convex
 285                                 basic_os=bsd
 286                                 ;;
 287                         convex-c34)
 288                                 basic_machine=c34-convex
 289                                 basic_os=bsd
 290                                 ;;
 291                         convex-c38)
 292                                 basic_machine=c38-convex
 293                                 basic_os=bsd
 294                                 ;;
 295                         cray)
 296                                 basic_machine=j90-cray
 297                                 basic_os=unicos
 298                                 ;;
 299                         crds | unos)
 300                                 basic_machine=m68k-crds
 301                                 basic_os=
 302                                 ;;
 303                         da30)
 304                                 basic_machine=m68k-da30
 305                                 basic_os=
 306                                 ;;
 307                         decstation | pmax | pmin | dec3100 | decstatn)
 308                                 basic_machine=mips-dec
 309                                 basic_os=
 310                                 ;;
 311                         delta88)
 312                                 basic_machine=m88k-motorola
 313                                 basic_os=sysv3
 314                                 ;;
 315                         dicos)
 316                                 basic_machine=i686-pc
 317                                 basic_os=dicos
 318                                 ;;
 319                         djgpp)
 320                                 basic_machine=i586-pc
 321                                 basic_os=msdosdjgpp
 322                                 ;;
 323                         ebmon29k)
 324                                 basic_machine=a29k-amd
 325                                 basic_os=ebmon
 326                                 ;;
 327                         es1800 | OSE68k | ose68k | ose | OSE)
 328                                 basic_machine=m68k-ericsson
 329                                 basic_os=ose
 330                                 ;;
 331                         gmicro)
 332                                 basic_machine=tron-gmicro
 333                                 basic_os=sysv
 334                                 ;;
 335                         go32)
 336                                 basic_machine=i386-pc
 337                                 basic_os=go32
 338                                 ;;
 339                         h8300hms)
 340                                 basic_machine=h8300-hitachi
 341                                 basic_os=hms
 342                                 ;;
 343                         h8300xray)
 344                                 basic_machine=h8300-hitachi
 345                                 basic_os=xray
 346                                 ;;
 347                         h8500hms)
 348                                 basic_machine=h8500-hitachi
 349                                 basic_os=hms
 350                                 ;;
 351                         harris)
 352                                 basic_machine=m88k-harris
 353                                 basic_os=sysv3
 354                                 ;;
 355                         hp300 | hp300hpux)
 356                                 basic_machine=m68k-hp
 357                                 basic_os=hpux
 358                                 ;;
 359                         hp300bsd)
 360                                 basic_machine=m68k-hp
 361                                 basic_os=bsd
 362                                 ;;
 363                         hppaosf)
 364                                 basic_machine=hppa1.1-hp
 365                                 basic_os=osf
 366                                 ;;
 367                         hppro)
 368                                 basic_machine=hppa1.1-hp
 369                                 basic_os=proelf
 370                                 ;;
 371                         i386mach)
 372                                 basic_machine=i386-mach
 373                                 basic_os=mach
 374                                 ;;
 375                         isi68 | isi)
 376                                 basic_machine=m68k-isi
 377                                 basic_os=sysv
 378                                 ;;
 379                         m68knommu)
 380                                 basic_machine=m68k-unknown
 381                                 basic_os=linux
 382                                 ;;
 383                         magnum | m3230)
 384                                 basic_machine=mips-mips
 385                                 basic_os=sysv
 386                                 ;;
 387                         merlin)
 388                                 basic_machine=ns32k-utek
 389                                 basic_os=sysv
 390                                 ;;
 391                         mingw64)
 392                                 basic_machine=x86_64-pc
 393                                 basic_os=mingw64
 394                                 ;;
 395                         mingw32)
 396                                 basic_machine=i686-pc
 397                                 basic_os=mingw32
 398                                 ;;
 399                         mingw32ce)
 400                                 basic_machine=arm-unknown
 401                                 basic_os=mingw32ce
 402                                 ;;
 403                         monitor)
 404                                 basic_machine=m68k-rom68k
 405                                 basic_os=coff
 406                                 ;;
 407                         morphos)
 408                                 basic_machine=powerpc-unknown
 409                                 basic_os=morphos
 410                                 ;;
 411                         moxiebox)
 412                                 basic_machine=moxie-unknown
 413                                 basic_os=moxiebox
 414                                 ;;
 415                         msdos)
 416                                 basic_machine=i386-pc
 417                                 basic_os=msdos
 418                                 ;;
 419                         msys)
 420                                 basic_machine=i686-pc
 421                                 basic_os=msys
 422                                 ;;
 423                         mvs)
 424                                 basic_machine=i370-ibm
 425                                 basic_os=mvs
 426                                 ;;
 427                         nacl)
 428                                 basic_machine=le32-unknown
 429                                 basic_os=nacl
 430                                 ;;
 431                         ncr3000)
 432                                 basic_machine=i486-ncr
 433                                 basic_os=sysv4
 434                                 ;;
 435                         netbsd386)
 436                                 basic_machine=i386-pc
 437                                 basic_os=netbsd
 438                                 ;;
 439                         netwinder)
 440                                 basic_machine=armv4l-rebel
 441                                 basic_os=linux
 442                                 ;;
 443                         news | news700 | news800 | news900)
 444                                 basic_machine=m68k-sony
 445                                 basic_os=newsos
 446                                 ;;
 447                         news1000)
 448                                 basic_machine=m68030-sony
 449                                 basic_os=newsos
 450                                 ;;
 451                         necv70)
 452                                 basic_machine=v70-nec
 453                                 basic_os=sysv
 454                                 ;;
 455                         nh3000)
 456                                 basic_machine=m68k-harris
 457                                 basic_os=cxux
 458                                 ;;
 459                         nh[45]000)
 460                                 basic_machine=m88k-harris
 461                                 basic_os=cxux
 462                                 ;;
 463                         nindy960)
 464                                 basic_machine=i960-intel
 465                                 basic_os=nindy
 466                                 ;;
 467                         mon960)
 468                                 basic_machine=i960-intel
 469                                 basic_os=mon960
 470                                 ;;
 471                         nonstopux)
 472                                 basic_machine=mips-compaq
 473                                 basic_os=nonstopux
 474                                 ;;
 475                         os400)
 476                                 basic_machine=powerpc-ibm
 477                                 basic_os=os400
 478                                 ;;
 479                         OSE68000 | ose68000)
 480                                 basic_machine=m68000-ericsson
 481                                 basic_os=ose
 482                                 ;;
 483                         os68k)
 484                                 basic_machine=m68k-none
 485                                 basic_os=os68k
 486                                 ;;
 487                         paragon)
 488                                 basic_machine=i860-intel
 489                                 basic_os=osf
 490                                 ;;
 491                         parisc)
 492                                 basic_machine=hppa-unknown
 493                                 basic_os=linux
 494                                 ;;
 495                         psp)
 496                                 basic_machine=mipsallegrexel-sony
 497                                 basic_os=psp
 498                                 ;;
 499                         pw32)
 500                                 basic_machine=i586-unknown
 501                                 basic_os=pw32
 502                                 ;;
 503                         rdos | rdos64)
 504                                 basic_machine=x86_64-pc
 505                                 basic_os=rdos
 506                                 ;;
 507                         rdos32)
 508                                 basic_machine=i386-pc
 509                                 basic_os=rdos
 510                                 ;;
 511                         rom68k)
 512                                 basic_machine=m68k-rom68k
 513                                 basic_os=coff
 514                                 ;;
 515                         sa29200)
 516                                 basic_machine=a29k-amd
 517                                 basic_os=udi
 518                                 ;;
 519                         sei)
 520                                 basic_machine=mips-sei
 521                                 basic_os=seiux
 522                                 ;;
 523                         sequent)
 524                                 basic_machine=i386-sequent
 525                                 basic_os=
 526                                 ;;
 527                         sps7)
 528                                 basic_machine=m68k-bull
 529                                 basic_os=sysv2
 530                                 ;;
 531                         st2000)
 532                                 basic_machine=m68k-tandem
 533                                 basic_os=
 534                                 ;;
 535                         stratus)
 536                                 basic_machine=i860-stratus
 537                                 basic_os=sysv4
 538                                 ;;
 539                         sun2)
 540                                 basic_machine=m68000-sun
 541                                 basic_os=
 542                                 ;;
 543                         sun2os3)
 544                                 basic_machine=m68000-sun
 545                                 basic_os=sunos3
 546                                 ;;
 547                         sun2os4)
 548                                 basic_machine=m68000-sun
 549                                 basic_os=sunos4
 550                                 ;;
 551                         sun3)
 552                                 basic_machine=m68k-sun
 553                                 basic_os=
 554                                 ;;
 555                         sun3os3)
 556                                 basic_machine=m68k-sun
 557                                 basic_os=sunos3
 558                                 ;;
 559                         sun3os4)
 560                                 basic_machine=m68k-sun
 561                                 basic_os=sunos4
 562                                 ;;
 563                         sun4)
 564                                 basic_machine=sparc-sun
 565                                 basic_os=
 566                                 ;;
 567                         sun4os3)
 568                                 basic_machine=sparc-sun
 569                                 basic_os=sunos3
 570                                 ;;
 571                         sun4os4)
 572                                 basic_machine=sparc-sun
 573                                 basic_os=sunos4
 574                                 ;;
 575                         sun4sol2)
 576                                 basic_machine=sparc-sun
 577                                 basic_os=solaris2
 578                                 ;;
 579                         sun386 | sun386i | roadrunner)
 580                                 basic_machine=i386-sun
 581                                 basic_os=
 582                                 ;;
 583                         sv1)
 584                                 basic_machine=sv1-cray
 585                                 basic_os=unicos
 586                                 ;;
 587                         symmetry)
 588                                 basic_machine=i386-sequent
 589                                 basic_os=dynix
 590                                 ;;
 591                         t3e)
 592                                 basic_machine=alphaev5-cray
 593                                 basic_os=unicos
 594                                 ;;
 595                         t90)
 596                                 basic_machine=t90-cray
 597                                 basic_os=unicos
 598                                 ;;
 599                         toad1)
 600                                 basic_machine=pdp10-xkl
 601                                 basic_os=tops20
 602                                 ;;
 603                         tpf)
 604                                 basic_machine=s390x-ibm
 605                                 basic_os=tpf
 606                                 ;;
 607                         udi29k)
 608                                 basic_machine=a29k-amd
 609                                 basic_os=udi
 610                                 ;;
 611                         ultra3)
 612                                 basic_machine=a29k-nyu
 613                                 basic_os=sym1
 614                                 ;;
 615                         v810 | necv810)
 616                                 basic_machine=v810-nec
 617                                 basic_os=none
 618                                 ;;
 619                         vaxv)
 620                                 basic_machine=vax-dec
 621                                 basic_os=sysv
 622                                 ;;
 623                         vms)
 624                                 basic_machine=vax-dec
 625                                 basic_os=vms
 626                                 ;;
 627                         vsta)
 628                                 basic_machine=i386-pc
 629                                 basic_os=vsta
 630                                 ;;
 631                         vxworks960)
 632                                 basic_machine=i960-wrs
 633                                 basic_os=vxworks
 634                                 ;;
 635                         vxworks68)
 636                                 basic_machine=m68k-wrs
 637                                 basic_os=vxworks
 638                                 ;;
 639                         vxworks29k)
 640                                 basic_machine=a29k-wrs
 641                                 basic_os=vxworks
 642                                 ;;
 643                         xbox)
 644                                 basic_machine=i686-pc
 645                                 basic_os=mingw32
 646                                 ;;
 647                         ymp)
 648                                 basic_machine=ymp-cray
 649                                 basic_os=unicos
 650                                 ;;
 651                         *)
 652                                 basic_machine=$1
 653                                 basic_os=
 654                                 ;;
 655                 esac
 656                 ;;
 657 esac
 658
 659 # Decode 1-component or ad-hoc basic machines
 660 case $basic_machine in
 661         # Here we handle the default manufacturer of certain CPU types.  It is in
 662         # some cases the only manufacturer, in others, it is the most popular.
 663         w89k)
 664                 cpu=hppa1.1
 665                 vendor=winbond
 666                 ;;
 667         op50n)
 668                 cpu=hppa1.1
 669                 vendor=oki
 670                 ;;
 671         op60c)
 672                 cpu=hppa1.1
 673                 vendor=oki
 674                 ;;
 675         ibm*)
 676                 cpu=i370
 677                 vendor=ibm
 678                 ;;
 679         orion105)
 680                 cpu=clipper
 681                 vendor=highlevel
 682                 ;;
 683         mac | mpw | mac-mpw)
 684                 cpu=m68k
 685                 vendor=apple
 686                 ;;
 687         pmac | pmac-mpw)
 688                 cpu=powerpc
 689                 vendor=apple
 690                 ;;
 691
 692         # Recognize the various machine names and aliases which stand
 693         # for a CPU type and a company and sometimes even an OS.
 694         3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
 695                 cpu=m68000
 696                 vendor=att
 697                 ;;
 698         3b*)
 699                 cpu=we32k
 700                 vendor=att
 701                 ;;
 702         bluegene*)
 703                 cpu=powerpc
 704                 vendor=ibm
 705                 basic_os=cnk
 706                 ;;
 707         decsystem10* | dec10*)
 708                 cpu=pdp10
 709                 vendor=dec
 710                 basic_os=tops10
 711                 ;;
 712         decsystem20* | dec20*)
 713                 cpu=pdp10
 714                 vendor=dec
 715                 basic_os=tops20
 716                 ;;
 717         delta | 3300 | motorola-3300 | motorola-delta \
 718               | 3300-motorola | delta-motorola)
 719                 cpu=m68k
 720                 vendor=motorola
 721                 ;;
 722         dpx2*)
 723                 cpu=m68k
 724                 vendor=bull
 725                 basic_os=sysv3
 726                 ;;
 727         encore | umax | mmax)
 728                 cpu=ns32k
 729                 vendor=encore
 730                 ;;
 731         elxsi)
 732                 cpu=elxsi
 733                 vendor=elxsi
 734                 basic_os=${basic_os:-bsd}
 735                 ;;
 736         fx2800)
 737                 cpu=i860
 738                 vendor=alliant
 739                 ;;
 740         genix)
 741                 cpu=ns32k
 742                 vendor=ns
 743                 ;;
 744         h3050r* | hiux*)
 745                 cpu=hppa1.1
 746                 vendor=hitachi
 747                 basic_os=hiuxwe2
 748                 ;;
 749         hp3k9[0-9][0-9] | hp9[0-9][0-9])
 750                 cpu=hppa1.0
 751                 vendor=hp
 752                 ;;
 753         hp9k2[0-9][0-9] | hp9k31[0-9])
 754                 cpu=m68000
 755                 vendor=hp
 756                 ;;
 757         hp9k3[2-9][0-9])
 758                 cpu=m68k
 759                 vendor=hp
 760                 ;;
 761         hp9k6[0-9][0-9] | hp6[0-9][0-9])
 762                 cpu=hppa1.0
 763                 vendor=hp
 764                 ;;
 765         hp9k7[0-79][0-9] | hp7[0-79][0-9])
 766                 cpu=hppa1.1
 767                 vendor=hp
 768                 ;;
 769         hp9k78[0-9] | hp78[0-9])
 770                 # FIXME: really hppa2.0-hp
 771                 cpu=hppa1.1
 772                 vendor=hp
 773                 ;;
 774         hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
 775                 # FIXME: really hppa2.0-hp
 776                 cpu=hppa1.1
 777                 vendor=hp
 778                 ;;
 779         hp9k8[0-9][13679] | hp8[0-9][13679])
 780                 cpu=hppa1.1
 781                 vendor=hp
 782                 ;;
 783         hp9k8[0-9][0-9] | hp8[0-9][0-9])
 784                 cpu=hppa1.0
 785                 vendor=hp
 786                 ;;
 787         i*86v32)
 788                 cpu=`echo "$1" | sed -e 's/86.*/86/'`
 789                 vendor=pc
 790                 basic_os=sysv32
 791                 ;;
 792         i*86v4*)
 793                 cpu=`echo "$1" | sed -e 's/86.*/86/'`
 794                 vendor=pc
 795                 basic_os=sysv4
 796                 ;;
 797         i*86v)
 798                 cpu=`echo "$1" | sed -e 's/86.*/86/'`
 799                 vendor=pc
 800                 basic_os=sysv
 801                 ;;
 802         i*86sol2)
 803                 cpu=`echo "$1" | sed -e 's/86.*/86/'`
 804                 vendor=pc
 805                 basic_os=solaris2
 806                 ;;
 807         j90 | j90-cray)
 808                 cpu=j90
 809                 vendor=cray
 810                 basic_os=${basic_os:-unicos}
 811                 ;;
 812         iris | iris4d)
 813                 cpu=mips
 814                 vendor=sgi
 815                 case $basic_os in
 816                     irix*)
 817                         ;;
 818                     *)
 819                         basic_os=irix4
 820                         ;;
 821                 esac
 822                 ;;
 823         miniframe)
 824                 cpu=m68000
 825                 vendor=convergent
 826                 ;;
 827         *mint | mint[0-9]* | *MiNT | *MiNT[0-9]*)
 828                 cpu=m68k
 829                 vendor=atari
 830                 basic_os=mint
 831                 ;;
 832         news-3600 | risc-news)
 833                 cpu=mips
 834                 vendor=sony
 835                 basic_os=newsos
 836                 ;;
 837         next | m*-next)
 838                 cpu=m68k
 839                 vendor=next
 840                 case $basic_os in
 841                     openstep*)
 842                         ;;
 843                     nextstep*)
 844                         ;;
 845                     ns2*)
 846                       basic_os=nextstep2
 847                         ;;
 848                     *)
 849                       basic_os=nextstep3
 850                         ;;
 851                 esac
 852                 ;;
 853         np1)
 854                 cpu=np1
 855                 vendor=gould
 856                 ;;
 857         op50n-* | op60c-*)
 858                 cpu=hppa1.1
 859                 vendor=oki
 860                 basic_os=proelf
 861                 ;;
 862         pa-hitachi)
 863                 cpu=hppa1.1
 864                 vendor=hitachi
 865                 basic_os=hiuxwe2
 866                 ;;
 867         pbd)
 868                 cpu=sparc
 869                 vendor=tti
 870                 ;;
 871         pbb)
 872                 cpu=m68k
 873                 vendor=tti
 874                 ;;
 875         pc532)
 876                 cpu=ns32k
 877                 vendor=pc532
 878                 ;;
 879         pn)
 880                 cpu=pn
 881                 vendor=gould
 882                 ;;
 883         power)
 884                 cpu=power
 885                 vendor=ibm
 886                 ;;
 887         ps2)
 888                 cpu=i386
 889                 vendor=ibm
 890                 ;;
 891         rm[46]00)
 892                 cpu=mips
 893                 vendor=siemens
 894                 ;;
 895         rtpc | rtpc-*)
 896                 cpu=romp
 897                 vendor=ibm
 898                 ;;
 899         sde)
 900                 cpu=mipsisa32
 901                 vendor=sde
 902                 basic_os=${basic_os:-elf}
 903                 ;;
 904         simso-wrs)
 905                 cpu=sparclite
 906                 vendor=wrs
 907                 basic_os=vxworks
 908                 ;;
 909         tower | tower-32)
 910                 cpu=m68k
 911                 vendor=ncr
 912                 ;;
 913         vpp*|vx|vx-*)
 914                 cpu=f301
 915                 vendor=fujitsu
 916                 ;;
 917         w65)
 918                 cpu=w65
 919                 vendor=wdc
 920                 ;;
 921         w89k-*)
 922                 cpu=hppa1.1
 923                 vendor=winbond
 924                 basic_os=proelf
 925                 ;;
 926         none)
 927                 cpu=none
 928                 vendor=none
 929                 ;;
 930         leon|leon[3-9])
 931                 cpu=sparc
 932                 vendor=$basic_machine
 933                 ;;
 934         leon-*|leon[3-9]-*)
 935                 cpu=sparc
 936                 vendor=`echo "$basic_machine" | sed 's/-.*//'`
 937                 ;;
 938
 939         *-*)
 940                 # shellcheck disable=SC2162
 941                 saved_IFS=$IFS
 942                 IFS="-" read cpu vendor <<EOF
 943 $basic_machine
 944 EOF
 945                 IFS=$saved_IFS
 946                 ;;
 947         # We use 'pc' rather than 'unknown'
 948         # because (1) that's what they normally are, and
 949         # (2) the word "unknown" tends to confuse beginning users.
 950         i*86 | x86_64)
 951                 cpu=$basic_machine
 952                 vendor=pc
 953                 ;;
 954         # These rules are duplicated from below for sake of the special case above;
 955         # i.e. things that normalized to x86 arches should also default to "pc"
 956         pc98)
 957                 cpu=i386
 958                 vendor=pc
 959                 ;;
 960         x64 | amd64)
 961                 cpu=x86_64
 962                 vendor=pc
 963                 ;;
 964         # Recognize the basic CPU types without company name.
 965         *)
 966                 cpu=$basic_machine
 967                 vendor=unknown
 968                 ;;
 969 esac
 970
 971 unset -v basic_machine
 972
 973 # Decode basic machines in the full and proper CPU-Company form.
 974 case $cpu-$vendor in
 975         # Here we handle the default manufacturer of certain CPU types in canonical form. It is in
 976         # some cases the only manufacturer, in others, it is the most popular.
 977         craynv-unknown)
 978                 vendor=cray
 979                 basic_os=${basic_os:-unicosmp}
 980                 ;;
 981         c90-unknown | c90-cray)
 982                 vendor=cray
 983                 basic_os=${Basic_os:-unicos}
 984                 ;;
 985         fx80-unknown)
 986                 vendor=alliant
 987                 ;;
 988         romp-unknown)
 989                 vendor=ibm
 990                 ;;
 991         mmix-unknown)
 992                 vendor=knuth
 993                 ;;
 994         microblaze-unknown | microblazeel-unknown)
 995                 vendor=xilinx
 996                 ;;
 997         rs6000-unknown)
 998                 vendor=ibm
 999                 ;;
1000         vax-unknown)
1001                 vendor=dec
1002                 ;;
1003         pdp11-unknown)
1004                 vendor=dec
1005                 ;;
1006         we32k-unknown)
1007                 vendor=att
1008                 ;;
1009         cydra-unknown)
1010                 vendor=cydrome
1011                 ;;
1012         i370-ibm*)
1013                 vendor=ibm
1014                 ;;
1015         orion-unknown)
1016                 vendor=highlevel
1017                 ;;
1018         xps-unknown | xps100-unknown)
1019                 cpu=xps100
1020                 vendor=honeywell
1021                 ;;
1022
1023         # Here we normalize CPU types with a missing or matching vendor
1024         armh-unknown | armh-alt)
1025                 cpu=armv7l
1026                 vendor=alt
1027                 basic_os=${basic_os:-linux-gnueabihf}
1028                 ;;
1029         dpx20-unknown | dpx20-bull)
1030                 cpu=rs6000
1031                 vendor=bull
1032                 basic_os=${basic_os:-bosx}
1033                 ;;
1034
1035         # Here we normalize CPU types irrespective of the vendor
1036         amd64-*)
1037                 cpu=x86_64
1038                 ;;
1039         blackfin-*)
1040                 cpu=bfin
1041                 basic_os=linux
1042                 ;;
1043         c54x-*)
1044                 cpu=tic54x
1045                 ;;
1046         c55x-*)
1047                 cpu=tic55x
1048                 ;;
1049         c6x-*)
1050                 cpu=tic6x
1051                 ;;
1052         e500v[12]-*)
1053                 cpu=powerpc
1054                 basic_os=${basic_os}"spe"
1055                 ;;
1056         mips3*-*)
1057                 cpu=mips64
1058                 ;;
1059         ms1-*)
1060                 cpu=mt
1061                 ;;
1062         m68knommu-*)
1063                 cpu=m68k
1064                 basic_os=linux
1065                 ;;
1066         m9s12z-* | m68hcs12z-* | hcs12z-* | s12z-*)
1067                 cpu=s12z
1068                 ;;
1069         openrisc-*)
1070                 cpu=or32
1071                 ;;
1072         parisc-*)
1073                 cpu=hppa
1074                 basic_os=linux
1075                 ;;
1076         pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
1077                 cpu=i586
1078                 ;;
1079         pentiumpro-* | p6-* | 6x86-* | athlon-* | athlon_*-*)
1080                 cpu=i686
1081                 ;;
1082         pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
1083                 cpu=i686
1084                 ;;
1085         pentium4-*)
1086                 cpu=i786
1087                 ;;
1088         pc98-*)
1089                 cpu=i386
1090                 ;;
1091         ppc-* | ppcbe-*)
1092                 cpu=powerpc
1093                 ;;
1094         ppcle-* | powerpclittle-*)
1095                 cpu=powerpcle
1096                 ;;
1097         ppc64-*)
1098                 cpu=powerpc64
1099                 ;;
1100         ppc64le-* | powerpc64little-*)
1101                 cpu=powerpc64le
1102                 ;;
1103         sb1-*)
1104                 cpu=mipsisa64sb1
1105                 ;;
1106         sb1el-*)
1107                 cpu=mipsisa64sb1el
1108                 ;;
1109         sh5e[lb]-*)
1110                 cpu=`echo "$cpu" | sed 's/^\(sh.\)e\(.\)$/\1\2e/'`
1111                 ;;
1112         spur-*)
1113                 cpu=spur
1114                 ;;
1115         strongarm-* | thumb-*)
1116                 cpu=arm
1117                 ;;
1118         tx39-*)
1119                 cpu=mipstx39
1120                 ;;
1121         tx39el-*)
1122                 cpu=mipstx39el
1123                 ;;
1124         x64-*)
1125                 cpu=x86_64
1126                 ;;
1127         xscale-* | xscalee[bl]-*)
1128                 cpu=`echo "$cpu" | sed 's/^xscale/arm/'`
1129                 ;;
1130         arm64-* | aarch64le-*)
1131                 cpu=aarch64
1132                 ;;
1133
1134         # Recognize the canonical CPU Types that limit and/or modify the
1135         # company names they are paired with.
1136         cr16-*)
1137                 basic_os=${basic_os:-elf}
1138                 ;;
1139         crisv32-* | etraxfs*-*)
1140                 cpu=crisv32
1141                 vendor=axis
1142                 ;;
1143         cris-* | etrax*-*)
1144                 cpu=cris
1145                 vendor=axis
1146                 ;;
1147         crx-*)
1148                 basic_os=${basic_os:-elf}
1149                 ;;
1150         neo-tandem)
1151                 cpu=neo
1152                 vendor=tandem
1153                 ;;
1154         nse-tandem)
1155                 cpu=nse
1156                 vendor=tandem
1157                 ;;
1158         nsr-tandem)
1159                 cpu=nsr
1160                 vendor=tandem
1161                 ;;
1162         nsv-tandem)
1163                 cpu=nsv
1164                 vendor=tandem
1165                 ;;
1166         nsx-tandem)
1167                 cpu=nsx
1168                 vendor=tandem
1169                 ;;
1170         mipsallegrexel-sony)
1171                 cpu=mipsallegrexel
1172                 vendor=sony
1173                 ;;
1174         tile*-*)
1175                 basic_os=${basic_os:-linux-gnu}
1176                 ;;
1177
1178         *)
1179                 # Recognize the canonical CPU types that are allowed with any
1180                 # company name.
1181                 case $cpu in
1182                         1750a | 580 \
1183                         | a29k \
1184                         | aarch64 | aarch64_be \
1185                         | abacus \
1186                         | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] \
1187                         | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] \
1188                         | alphapca5[67] | alpha64pca5[67] \
1189                         | am33_2.0 \
1190                         | amdgcn \
1191                         | arc | arceb | arc32 | arc64 \
1192                         | arm | arm[lb]e | arme[lb] | armv* \
1193                         | avr | avr32 \
1194                         | asmjs \
1195                         | ba \
1196                         | be32 | be64 \
1197                         | bfin | bpf | bs2000 \
1198                         | c[123]* | c30 | [cjt]90 | c4x \
1199                         | c8051 | clipper | craynv | csky | cydra \
1200                         | d10v | d30v | dlx | dsp16xx \
1201                         | e2k | elxsi | epiphany \
1202                         | f30[01] | f700 | fido | fr30 | frv | ft32 | fx80 \
1203                         | h8300 | h8500 \
1204                         | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
1205                         | hexagon \
1206                         | i370 | i*86 | i860 | i960 | ia16 | ia64 \
1207                         | ip2k | iq2000 \
1208                         | k1om \
1209                         | kvx \
1210                         | le32 | le64 \
1211                         | lm32 \
1212                         | loongarch32 | loongarch64 \
1213                         | m32c | m32r | m32rle \
1214                         | m5200 | m68000 | m680[012346]0 | m68360 | m683?2 | m68k \
1215                         | m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x \
1216                         | m88110 | m88k | maxq | mb | mcore | mep | metag \
1217                         | microblaze | microblazeel \
1218                         | mips | mipsbe | mipseb | mipsel | mipsle \
1219                         | mips16 \
1220                         | mips64 | mips64eb | mips64el \
1221                         | mips64octeon | mips64octeonel \
1222                         | mips64orion | mips64orionel \
1223                         | mips64r5900 | mips64r5900el \
1224                         | mips64vr | mips64vrel \
1225                         | mips64vr4100 | mips64vr4100el \
1226                         | mips64vr4300 | mips64vr4300el \
1227                         | mips64vr5000 | mips64vr5000el \
1228                         | mips64vr5900 | mips64vr5900el \
1229                         | mipsisa32 | mipsisa32el \
1230                         | mipsisa32r2 | mipsisa32r2el \
1231                         | mipsisa32r3 | mipsisa32r3el \
1232                         | mipsisa32r5 | mipsisa32r5el \
1233                         | mipsisa32r6 | mipsisa32r6el \
1234                         | mipsisa64 | mipsisa64el \
1235                         | mipsisa64r2 | mipsisa64r2el \
1236                         | mipsisa64r3 | mipsisa64r3el \
1237                         | mipsisa64r5 | mipsisa64r5el \
1238                         | mipsisa64r6 | mipsisa64r6el \
1239                         | mipsisa64sb1 | mipsisa64sb1el \
1240                         | mipsisa64sr71k | mipsisa64sr71kel \
1241                         | mipsr5900 | mipsr5900el \
1242                         | mipstx39 | mipstx39el \
1243                         | mmix \
1244                         | mn10200 | mn10300 \
1245                         | moxie \
1246                         | mt \
1247                         | msp430 \
1248                         | nds32 | nds32le | nds32be \
1249                         | nfp \
1250                         | nios | nios2 | nios2eb | nios2el \
1251                         | none | np1 | ns16k | ns32k | nvptx \
1252                         | open8 \
1253                         | or1k* \
1254                         | or32 \
1255                         | orion \
1256                         | picochip \
1257                         | pdp10 | pdp11 | pj | pjl | pn | power \
1258                         | powerpc | powerpc64 | powerpc64le | powerpcle | powerpcspe \
1259                         | pru \
1260                         | pyramid \
1261                         | riscv | riscv32 | riscv32be | riscv64 | riscv64be \
1262                         | rl78 | romp | rs6000 | rx \
1263                         | s390 | s390x \
1264                         | score \
1265                         | sh | shl \
1266                         | sh[1234] | sh[24]a | sh[24]ae[lb] | sh[23]e | she[lb] | sh[lb]e \
1267                         | sh[1234]e[lb] |  sh[12345][lb]e | sh[23]ele | sh64 | sh64le \
1268                         | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet \
1269                         | sparclite \
1270                         | sparcv8 | sparcv9 | sparcv9b | sparcv9v | sv1 | sx* \
1271                         | spu \
1272                         | tahoe \
1273                         | thumbv7* \
1274                         | tic30 | tic4x | tic54x | tic55x | tic6x | tic80 \
1275                         | tron \
1276                         | ubicom32 \
1277                         | v70 | v850 | v850e | v850e1 | v850es | v850e2 | v850e2v3 \
1278                         | vax \
1279                         | visium \
1280                         | w65 \
1281                         | wasm32 | wasm64 \
1282                         | we32k \
1283                         | x86 | x86_64 | xc16x | xgate | xps100 \
1284                         | xstormy16 | xtensa* \
1285                         | ymp \
1286                         | z8k | z80)
1287                                 ;;
1288
1289                         *)
1290                                 echo "Invalid configuration '$1': machine '$cpu-$vendor' not recognized" 1>&2
1291                                 exit 1
1292                                 ;;
1293                 esac
1294                 ;;
1295 esac
1296
1297 # Here we canonicalize certain aliases for manufacturers.
1298 case $vendor in
1299         digital*)
1300                 vendor=dec
1301                 ;;
1302         commodore*)
1303                 vendor=cbm
1304                 ;;
1305         *)
1306                 ;;
1307 esac
1308
1309 # Decode manufacturer-specific aliases for certain operating systems.
1310
1311 if test x$basic_os != x
1312 then
1313
1314 # First recognize some ad-hoc cases, or perhaps split kernel-os, or else just
1315 # set os.
1316 case $basic_os in
1317         gnu/linux*)
1318                 kernel=linux
1319                 os=`echo "$basic_os" | sed -e 's|gnu/linux|gnu|'`
1320                 ;;
1321         os2-emx)
1322                 kernel=os2
1323                 os=`echo "$basic_os" | sed -e 's|os2-emx|emx|'`
1324                 ;;
1325         nto-qnx*)
1326                 kernel=nto
1327                 os=`echo "$basic_os" | sed -e 's|nto-qnx|qnx|'`
1328                 ;;
1329         *-*)
1330                 # shellcheck disable=SC2162
1331                 saved_IFS=$IFS
1332                 IFS="-" read kernel os <<EOF
1333 $basic_os
1334 EOF
1335                 IFS=$saved_IFS
1336                 ;;
1337         # Default OS when just kernel was specified
1338         nto*)
1339                 kernel=nto
1340                 os=`echo "$basic_os" | sed -e 's|nto|qnx|'`
1341                 ;;
1342         linux*)
1343                 kernel=linux
1344                 os=`echo "$basic_os" | sed -e 's|linux|gnu|'`
1345                 ;;
1346         managarm*)
1347                 kernel=managarm
1348                 os=`echo "$basic_os" | sed -e 's|managarm|mlibc|'`
1349                 ;;
1350         *)
1351                 kernel=
1352                 os=$basic_os
1353                 ;;
1354 esac
1355
1356 # Now, normalize the OS (knowing we just have one component, it's not a kernel,
1357 # etc.)
1358 case $os in
1359         # First match some system type aliases that might get confused
1360         # with valid system types.
1361         # solaris* is a basic system type, with this one exception.
1362         auroraux)
1363                 os=auroraux
1364                 ;;
1365         bluegene*)
1366                 os=cnk
1367                 ;;
1368         solaris1 | solaris1.*)
1369                 os=`echo "$os" | sed -e 's|solaris1|sunos4|'`
1370                 ;;
1371         solaris)
1372                 os=solaris2
1373                 ;;
1374         unixware*)
1375                 os=sysv4.2uw
1376                 ;;
1377         # es1800 is here to avoid being matched by es* (a different OS)
1378         es1800*)
1379                 os=ose
1380                 ;;
1381         # Some version numbers need modification
1382         chorusos*)
1383                 os=chorusos
1384                 ;;
1385         isc)
1386                 os=isc2.2
1387                 ;;
1388         sco6)
1389                 os=sco5v6
1390                 ;;
1391         sco5)
1392                 os=sco3.2v5
1393                 ;;
1394         sco4)
1395                 os=sco3.2v4
1396                 ;;
1397         sco3.2.[4-9]*)
1398                 os=`echo "$os" | sed -e 's/sco3.2./sco3.2v/'`
1399                 ;;
1400         sco*v* | scout)
1401                 # Don't match below
1402                 ;;
1403         sco*)
1404                 os=sco3.2v2
1405                 ;;
1406         psos*)
1407                 os=psos
1408                 ;;
1409         qnx*)
1410                 os=qnx
1411                 ;;
1412         hiux*)
1413                 os=hiuxwe2
1414                 ;;
1415         lynx*178)
1416                 os=lynxos178
1417                 ;;
1418         lynx*5)
1419                 os=lynxos5
1420                 ;;
1421         lynxos*)
1422                 # don't get caught up in next wildcard
1423                 ;;
1424         lynx*)
1425                 os=lynxos
1426                 ;;
1427         mac[0-9]*)
1428                 os=`echo "$os" | sed -e 's|mac|macos|'`
1429                 ;;
1430         opened*)
1431                 os=openedition
1432                 ;;
1433         os400*)
1434                 os=os400
1435                 ;;
1436         sunos5*)
1437                 os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
1438                 ;;
1439         sunos6*)
1440                 os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
1441                 ;;
1442         wince*)
1443                 os=wince
1444                 ;;
1445         utek*)
1446                 os=bsd
1447                 ;;
1448         dynix*)
1449                 os=bsd
1450                 ;;
1451         acis*)
1452                 os=aos
1453                 ;;
1454         atheos*)
1455                 os=atheos
1456                 ;;
1457         syllable*)
1458                 os=syllable
1459                 ;;
1460         386bsd)
1461                 os=bsd
1462                 ;;
1463         ctix* | uts*)
1464                 os=sysv
1465                 ;;
1466         nova*)
1467                 os=rtmk-nova
1468                 ;;
1469         ns2)
1470                 os=nextstep2
1471                 ;;
1472         # Preserve the version number of sinix5.
1473         sinix5.*)
1474                 os=`echo "$os" | sed -e 's|sinix|sysv|'`
1475                 ;;
1476         sinix*)
1477                 os=sysv4
1478                 ;;
1479         tpf*)
1480                 os=tpf
1481                 ;;
1482         triton*)
1483                 os=sysv3
1484                 ;;
1485         oss*)
1486                 os=sysv3
1487                 ;;
1488         svr4*)
1489                 os=sysv4
1490                 ;;
1491         svr3)
1492                 os=sysv3
1493                 ;;
1494         sysvr4)
1495                 os=sysv4
1496                 ;;
1497         ose*)
1498                 os=ose
1499                 ;;
1500         *mint | mint[0-9]* | *MiNT | MiNT[0-9]*)
1501                 os=mint
1502                 ;;
1503         dicos*)
1504                 os=dicos
1505                 ;;
1506         pikeos*)
1507                 # Until real need of OS specific support for
1508                 # particular features comes up, bare metal
1509                 # configurations are quite functional.
1510                 case $cpu in
1511                     arm*)
1512                         os=eabi
1513                         ;;
1514                     *)
1515                         os=elf
1516                         ;;
1517                 esac
1518                 ;;
1519         *)
1520                 # No normalization, but not necessarily accepted, that comes below.
1521                 ;;
1522 esac
1523
1524 else
1525
1526 # Here we handle the default operating systems that come with various machines.
1527 # The value should be what the vendor currently ships out the door with their
1528 # machine or put another way, the most popular os provided with the machine.
1529
1530 # Note that if you're going to try to match "-MANUFACTURER" here (say,
1531 # "-sun"), then you have to tell the case statement up towards the top
1532 # that MANUFACTURER isn't an operating system.  Otherwise, code above
1533 # will signal an error saying that MANUFACTURER isn't an operating
1534 # system, and we'll never get to this point.
1535
1536 kernel=
1537 case $cpu-$vendor in
1538         score-*)
1539                 os=elf
1540                 ;;
1541         spu-*)
1542                 os=elf
1543                 ;;
1544         *-acorn)
1545                 os=riscix1.2
1546                 ;;
1547         arm*-rebel)
1548                 kernel=linux
1549                 os=gnu
1550                 ;;
1551         arm*-semi)
1552                 os=aout
1553                 ;;
1554         c4x-* | tic4x-*)
1555                 os=coff
1556                 ;;
1557         c8051-*)
1558                 os=elf
1559                 ;;
1560         clipper-intergraph)
1561                 os=clix
1562                 ;;
1563         hexagon-*)
1564                 os=elf
1565                 ;;
1566         tic54x-*)
1567                 os=coff
1568                 ;;
1569         tic55x-*)
1570                 os=coff
1571                 ;;
1572         tic6x-*)
1573                 os=coff
1574                 ;;
1575         # This must come before the *-dec entry.
1576         pdp10-*)
1577                 os=tops20
1578                 ;;
1579         pdp11-*)
1580                 os=none
1581                 ;;
1582         *-dec | vax-*)
1583                 os=ultrix4.2
1584                 ;;
1585         m68*-apollo)
1586                 os=domain
1587                 ;;
1588         i386-sun)
1589                 os=sunos4.0.2
1590                 ;;
1591         m68000-sun)
1592                 os=sunos3
1593                 ;;
1594         m68*-cisco)
1595                 os=aout
1596                 ;;
1597         mep-*)
1598                 os=elf
1599                 ;;
1600         mips*-cisco)
1601                 os=elf
1602                 ;;
1603         mips*-*)
1604                 os=elf
1605                 ;;
1606         or32-*)
1607                 os=coff
1608                 ;;
1609         *-tti)  # must be before sparc entry or we get the wrong os.
1610                 os=sysv3
1611                 ;;
1612         sparc-* | *-sun)
1613                 os=sunos4.1.1
1614                 ;;
1615         pru-*)
1616                 os=elf
1617                 ;;
1618         *-be)
1619                 os=beos
1620                 ;;
1621         *-ibm)
1622                 os=aix
1623                 ;;
1624         *-knuth)
1625                 os=mmixware
1626                 ;;
1627         *-wec)
1628                 os=proelf
1629                 ;;
1630         *-winbond)
1631                 os=proelf
1632                 ;;
1633         *-oki)
1634                 os=proelf
1635                 ;;
1636         *-hp)
1637                 os=hpux
1638                 ;;
1639         *-hitachi)
1640                 os=hiux
1641                 ;;
1642         i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
1643                 os=sysv
1644                 ;;
1645         *-cbm)
1646                 os=amigaos
1647                 ;;
1648         *-dg)
1649                 os=dgux
1650                 ;;
1651         *-dolphin)
1652                 os=sysv3
1653                 ;;
1654         m68k-ccur)
1655                 os=rtu
1656                 ;;
1657         m88k-omron*)
1658                 os=luna
1659                 ;;
1660         *-next)
1661                 os=nextstep
1662                 ;;
1663         *-sequent)
1664                 os=ptx
1665                 ;;
1666         *-crds)
1667                 os=unos
1668                 ;;
1669         *-ns)
1670                 os=genix
1671                 ;;
1672         i370-*)
1673                 os=mvs
1674                 ;;
1675         *-gould)
1676                 os=sysv
1677                 ;;
1678         *-highlevel)
1679                 os=bsd
1680                 ;;
1681         *-encore)
1682                 os=bsd
1683                 ;;
1684         *-sgi)
1685                 os=irix
1686                 ;;
1687         *-siemens)
1688                 os=sysv4
1689                 ;;
1690         *-masscomp)
1691                 os=rtu
1692                 ;;
1693         f30[01]-fujitsu | f700-fujitsu)
1694                 os=uxpv
1695                 ;;
1696         *-rom68k)
1697                 os=coff
1698                 ;;
1699         *-*bug)
1700                 os=coff
1701                 ;;
1702         *-apple)
1703                 os=macos
1704                 ;;
1705         *-atari*)
1706                 os=mint
1707                 ;;
1708         *-wrs)
1709                 os=vxworks
1710                 ;;
1711         *)
1712                 os=none
1713                 ;;
1714 esac
1715
1716 fi
1717
1718 # Now, validate our (potentially fixed-up) OS.
1719 case $os in
1720         # Sometimes we do "kernel-libc", so those need to count as OSes.
1721         musl* | newlib* | relibc* | uclibc*)
1722                 ;;
1723         # Likewise for "kernel-abi"
1724         eabi* | gnueabi*)
1725                 ;;
1726         # VxWorks passes extra cpu info in the 4th filed.
1727         simlinux | simwindows | spe)
1728                 ;;
1729         # Now accept the basic system types.
1730         # The portable systems comes first.
1731         # Each alternative MUST end in a * to match a version number.
1732         gnu* | android* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
1733              | *vms* | esix* | aix* | cnk* | sunos | sunos[34]* \
1734              | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
1735              | sym* |  plan9* | psp* | sim* | xray* | os68k* | v88r* \
1736              | hiux* | abug | nacl* | netware* | windows* \
1737              | os9* | macos* | osx* | ios* \
1738              | mpw* | magic* | mmixware* | mon960* | lnews* \
1739              | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \
1740              | aos* | aros* | cloudabi* | sortix* | twizzler* \
1741              | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \
1742              | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \
1743              | mirbsd* | netbsd* | dicos* | openedition* | ose* \
1744              | bitrig* | openbsd* | secbsd* | solidbsd* | libertybsd* | os108* \
1745              | ekkobsd* | freebsd* | riscix* | lynxos* | os400* \
1746              | bosx* | nextstep* | cxux* | aout* | elf* | oabi* \
1747              | ptx* | coff* | ecoff* | winnt* | domain* | vsta* \
1748              | udi* | lites* | ieee* | go32* | aux* | hcos* \
1749              | chorusrdb* | cegcc* | glidix* | serenity* \
1750              | cygwin* | msys* | pe* | moss* | proelf* | rtems* \
1751              | midipix* | mingw32* | mingw64* | mint* \
1752              | uxpv* | beos* | mpeix* | udk* | moxiebox* \
1753              | interix* | uwin* | mks* | rhapsody* | darwin* \
1754              | openstep* | oskit* | conix* | pw32* | nonstopux* \
1755              | storm-chaos* | tops10* | tenex* | tops20* | its* \
1756              | os2* | vos* | palmos* | uclinux* | nucleus* | morphos* \
1757              | scout* | superux* | sysv* | rtmk* | tpf* | windiss* \
1758              | powermax* | dnix* | nx6 | nx7 | sei* | dragonfly* \
1759              | skyos* | haiku* | rdos* | toppers* | drops* | es* \
1760              | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
1761              | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
1762              | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
1763              | fiwix* | mlibc* | cos* | mbr* )
1764                 ;;
1765         # This one is extra strict with allowed versions
1766         sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
1767                 # Don't forget version if it is 3.2v4 or newer.
1768                 ;;
1769         none)
1770                 ;;
1771         kernel* | msvc* )
1772                 # Restricted further below
1773                 ;;
1774         *)
1775                 echo "Invalid configuration '$1': OS '$os' not recognized" 1>&2
1776                 exit 1
1777                 ;;
1778 esac
1779
1780 # As a final step for OS-related things, validate the OS-kernel combination
1781 # (given a valid OS), if there is a kernel.
1782 case $kernel-$os in
1783         linux-gnu* | linux-dietlibc* | linux-android* | linux-newlib* \
1784                    | linux-musl* | linux-relibc* | linux-uclibc* | linux-mlibc* )
1785                 ;;
1786         uclinux-uclibc* )
1787                 ;;
1788         managarm-mlibc* | managarm-kernel* )
1789                 ;;
1790         windows*-gnu* | windows*-msvc*)
1791                 ;;
1792         -dietlibc* | -newlib* | -musl* | -relibc* | -uclibc* | -mlibc* )
1793                 # These are just libc implementations, not actual OSes, and thus
1794                 # require a kernel.
1795                 echo "Invalid configuration '$1': libc '$os' needs explicit kernel." 1>&2
1796                 exit 1
1797                 ;;
1798         -kernel* )
1799                 echo "Invalid configuration '$1': '$os' needs explicit kernel." 1>&2
1800                 exit 1
1801                 ;;
1802         *-kernel* )
1803                 echo "Invalid configuration '$1': '$kernel' does not support '$os'." 1>&2
1804                 exit 1
1805                 ;;
1806         *-msvc* )
1807                 echo "Invalid configuration '$1': '$os' needs 'windows'." 1>&2
1808                 exit 1
1809                 ;;
1810         kfreebsd*-gnu* | kopensolaris*-gnu*)
1811                 ;;
1812         vxworks-simlinux | vxworks-simwindows | vxworks-spe)
1813                 ;;
1814         nto-qnx*)
1815                 ;;
1816         os2-emx)
1817                 ;;
1818         *-eabi* | *-gnueabi*)
1819                 ;;
1820         -*)
1821                 # Blank kernel with real OS is always fine.
1822                 ;;
1823         *-*)
1824                 echo "Invalid configuration '$1': Kernel '$kernel' not known to work with OS '$os'." 1>&2
1825                 exit 1
1826                 ;;
1827 esac
1828
1829 # Here we handle the case where we know the os, and the CPU type, but not the
1830 # manufacturer.  We pick the logical manufacturer.
1831 case $vendor in
1832         unknown)
1833                 case $cpu-$os in
1834                         *-riscix*)
1835                                 vendor=acorn
1836                                 ;;
1837                         *-sunos*)
1838                                 vendor=sun
1839                                 ;;
1840                         *-cnk* | *-aix*)
1841                                 vendor=ibm
1842                                 ;;
1843                         *-beos*)
1844                                 vendor=be
1845                                 ;;
1846                         *-hpux*)
1847                                 vendor=hp
1848                                 ;;
1849                         *-mpeix*)
1850                                 vendor=hp
1851                                 ;;
1852                         *-hiux*)
1853                                 vendor=hitachi
1854                                 ;;
1855                         *-unos*)
1856                                 vendor=crds
1857                                 ;;
1858                         *-dgux*)
1859                                 vendor=dg
1860                                 ;;
1861                         *-luna*)
1862                                 vendor=omron
1863                                 ;;
1864                         *-genix*)
1865                                 vendor=ns
1866                                 ;;
1867                         *-clix*)
1868                                 vendor=intergraph
1869                                 ;;
1870                         *-mvs* | *-opened*)
1871                                 vendor=ibm
1872                                 ;;
1873                         *-os400*)
1874                                 vendor=ibm
1875                                 ;;
1876                         s390-* | s390x-*)
1877                                 vendor=ibm
1878                                 ;;
1879                         *-ptx*)
1880                                 vendor=sequent
1881                                 ;;
1882                         *-tpf*)
1883                                 vendor=ibm
1884                                 ;;
1885                         *-vxsim* | *-vxworks* | *-windiss*)
1886                                 vendor=wrs
1887                                 ;;
1888                         *-aux*)
1889                                 vendor=apple
1890                                 ;;
1891                         *-hms*)
1892                                 vendor=hitachi
1893                                 ;;
1894                         *-mpw* | *-macos*)
1895                                 vendor=apple
1896                                 ;;
1897                         *-*mint | *-mint[0-9]* | *-*MiNT | *-MiNT[0-9]*)
1898                                 vendor=atari
1899                                 ;;
1900                         *-vos*)
1901                                 vendor=stratus
1902                                 ;;
1903                 esac
1904                 ;;
1905 esac
1906
1907 echo "$cpu-$vendor-${kernel:+$kernel-}$os"
1908 exit
1909
1910 # Local variables:
1911 # eval: (add-hook 'before-save-hook 'time-stamp)
1912 # time-stamp-start: "timestamp='"
1913 # time-stamp-format: "%:y-%02m-%02d"
1914 # time-stamp-end: "'"
1915 # End: