build-aux/config.sub

   1 #! /bin/sh
   2 # Configuration validation subroutine script.
   3 #   Copyright 1992-2024 Free Software Foundation, Inc.
   4
   5 # shellcheck disable=SC2006,SC2268 # see below for rationale
   6
   7 timestamp='2024-01-01'
   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 1992-2024 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 | aarch64c | arm64ec \
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                         | javascript \
1204                         | h8300 | h8500 \
1205                         | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
1206                         | hexagon \
1207                         | i370 | i*86 | i860 | i960 | ia16 | ia64 \
1208                         | ip2k | iq2000 \
1209                         | k1om \
1210                         | kvx \
1211                         | le32 | le64 \
1212                         | lm32 \
1213                         | loongarch32 | loongarch64 \
1214                         | m32c | m32r | m32rle \
1215                         | m5200 | m68000 | m680[012346]0 | m68360 | m683?2 | m68k \
1216                         | m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x \
1217                         | m88110 | m88k | maxq | mb | mcore | mep | metag \
1218                         | microblaze | microblazeel \
1219                         | mips* \
1220                         | mmix \
1221                         | mn10200 | mn10300 \
1222                         | moxie \
1223                         | mt \
1224                         | msp430 \
1225                         | nanomips* \
1226                         | nds32 | nds32le | nds32be \
1227                         | nfp \
1228                         | nios | nios2 | nios2eb | nios2el \
1229                         | none | np1 | ns16k | ns32k | nvptx \
1230                         | open8 \
1231                         | or1k* \
1232                         | or32 \
1233                         | orion \
1234                         | picochip \
1235                         | pdp10 | pdp11 | pj | pjl | pn | power \
1236                         | powerpc | powerpc64 | powerpc64le | powerpcle | powerpcspe \
1237                         | pru \
1238                         | pyramid \
1239                         | riscv | riscv32 | riscv32be | riscv64 | riscv64be \
1240                         | rl78 | romp | rs6000 | rx \
1241                         | s390 | s390x \
1242                         | score \
1243                         | sh | shl \
1244                         | sh[1234] | sh[24]a | sh[24]ae[lb] | sh[23]e | she[lb] | sh[lb]e \
1245                         | sh[1234]e[lb] |  sh[12345][lb]e | sh[23]ele | sh64 | sh64le \
1246                         | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet \
1247                         | sparclite \
1248                         | sparcv8 | sparcv9 | sparcv9b | sparcv9v | sv1 | sx* \
1249                         | spu \
1250                         | tahoe \
1251                         | thumbv7* \
1252                         | tic30 | tic4x | tic54x | tic55x | tic6x | tic80 \
1253                         | tron \
1254                         | ubicom32 \
1255                         | v70 | v850 | v850e | v850e1 | v850es | v850e2 | v850e2v3 \
1256                         | vax \
1257                         | vc4 \
1258                         | visium \
1259                         | w65 \
1260                         | wasm32 | wasm64 \
1261                         | we32k \
1262                         | x86 | x86_64 | xc16x | xgate | xps100 \
1263                         | xstormy16 | xtensa* \
1264                         | ymp \
1265                         | z8k | z80)
1266                                 ;;
1267
1268                         *)
1269                                 echo "Invalid configuration '$1': machine '$cpu-$vendor' not recognized" 1>&2
1270                                 exit 1
1271                                 ;;
1272                 esac
1273                 ;;
1274 esac
1275
1276 # Here we canonicalize certain aliases for manufacturers.
1277 case $vendor in
1278         digital*)
1279                 vendor=dec
1280                 ;;
1281         commodore*)
1282                 vendor=cbm
1283                 ;;
1284         *)
1285                 ;;
1286 esac
1287
1288 # Decode manufacturer-specific aliases for certain operating systems.
1289
1290 if test x"$basic_os" != x
1291 then
1292
1293 # First recognize some ad-hoc cases, or perhaps split kernel-os, or else just
1294 # set os.
1295 obj=
1296 case $basic_os in
1297         gnu/linux*)
1298                 kernel=linux
1299                 os=`echo "$basic_os" | sed -e 's|gnu/linux|gnu|'`
1300                 ;;
1301         os2-emx)
1302                 kernel=os2
1303                 os=`echo "$basic_os" | sed -e 's|os2-emx|emx|'`
1304                 ;;
1305         nto-qnx*)
1306                 kernel=nto
1307                 os=`echo "$basic_os" | sed -e 's|nto-qnx|qnx|'`
1308                 ;;
1309         *-*)
1310                 # shellcheck disable=SC2162
1311                 saved_IFS=$IFS
1312                 IFS="-" read kernel os <<EOF
1313 $basic_os
1314 EOF
1315                 IFS=$saved_IFS
1316                 ;;
1317         # Default OS when just kernel was specified
1318         nto*)
1319                 kernel=nto
1320                 os=`echo "$basic_os" | sed -e 's|nto|qnx|'`
1321                 ;;
1322         linux*)
1323                 kernel=linux
1324                 os=`echo "$basic_os" | sed -e 's|linux|gnu|'`
1325                 ;;
1326         managarm*)
1327                 kernel=managarm
1328                 os=`echo "$basic_os" | sed -e 's|managarm|mlibc|'`
1329                 ;;
1330         *)
1331                 kernel=
1332                 os=$basic_os
1333                 ;;
1334 esac
1335
1336 # Now, normalize the OS (knowing we just have one component, it's not a kernel,
1337 # etc.)
1338 case $os in
1339         # First match some system type aliases that might get confused
1340         # with valid system types.
1341         # solaris* is a basic system type, with this one exception.
1342         auroraux)
1343                 os=auroraux
1344                 ;;
1345         bluegene*)
1346                 os=cnk
1347                 ;;
1348         solaris1 | solaris1.*)
1349                 os=`echo "$os" | sed -e 's|solaris1|sunos4|'`
1350                 ;;
1351         solaris)
1352                 os=solaris2
1353                 ;;
1354         unixware*)
1355                 os=sysv4.2uw
1356                 ;;
1357         # es1800 is here to avoid being matched by es* (a different OS)
1358         es1800*)
1359                 os=ose
1360                 ;;
1361         # Some version numbers need modification
1362         chorusos*)
1363                 os=chorusos
1364                 ;;
1365         isc)
1366                 os=isc2.2
1367                 ;;
1368         sco6)
1369                 os=sco5v6
1370                 ;;
1371         sco5)
1372                 os=sco3.2v5
1373                 ;;
1374         sco4)
1375                 os=sco3.2v4
1376                 ;;
1377         sco3.2.[4-9]*)
1378                 os=`echo "$os" | sed -e 's/sco3.2./sco3.2v/'`
1379                 ;;
1380         sco*v* | scout)
1381                 # Don't match below
1382                 ;;
1383         sco*)
1384                 os=sco3.2v2
1385                 ;;
1386         psos*)
1387                 os=psos
1388                 ;;
1389         qnx*)
1390                 os=qnx
1391                 ;;
1392         hiux*)
1393                 os=hiuxwe2
1394                 ;;
1395         lynx*178)
1396                 os=lynxos178
1397                 ;;
1398         lynx*5)
1399                 os=lynxos5
1400                 ;;
1401         lynxos*)
1402                 # don't get caught up in next wildcard
1403                 ;;
1404         lynx*)
1405                 os=lynxos
1406                 ;;
1407         mac[0-9]*)
1408                 os=`echo "$os" | sed -e 's|mac|macos|'`
1409                 ;;
1410         opened*)
1411                 os=openedition
1412                 ;;
1413         os400*)
1414                 os=os400
1415                 ;;
1416         sunos5*)
1417                 os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
1418                 ;;
1419         sunos6*)
1420                 os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
1421                 ;;
1422         wince*)
1423                 os=wince
1424                 ;;
1425         utek*)
1426                 os=bsd
1427                 ;;
1428         dynix*)
1429                 os=bsd
1430                 ;;
1431         acis*)
1432                 os=aos
1433                 ;;
1434         atheos*)
1435                 os=atheos
1436                 ;;
1437         syllable*)
1438                 os=syllable
1439                 ;;
1440         386bsd)
1441                 os=bsd
1442                 ;;
1443         ctix* | uts*)
1444                 os=sysv
1445                 ;;
1446         nova*)
1447                 os=rtmk-nova
1448                 ;;
1449         ns2)
1450                 os=nextstep2
1451                 ;;
1452         # Preserve the version number of sinix5.
1453         sinix5.*)
1454                 os=`echo "$os" | sed -e 's|sinix|sysv|'`
1455                 ;;
1456         sinix*)
1457                 os=sysv4
1458                 ;;
1459         tpf*)
1460                 os=tpf
1461                 ;;
1462         triton*)
1463                 os=sysv3
1464                 ;;
1465         oss*)
1466                 os=sysv3
1467                 ;;
1468         svr4*)
1469                 os=sysv4
1470                 ;;
1471         svr3)
1472                 os=sysv3
1473                 ;;
1474         sysvr4)
1475                 os=sysv4
1476                 ;;
1477         ose*)
1478                 os=ose
1479                 ;;
1480         *mint | mint[0-9]* | *MiNT | MiNT[0-9]*)
1481                 os=mint
1482                 ;;
1483         dicos*)
1484                 os=dicos
1485                 ;;
1486         pikeos*)
1487                 # Until real need of OS specific support for
1488                 # particular features comes up, bare metal
1489                 # configurations are quite functional.
1490                 case $cpu in
1491                     arm*)
1492                         os=eabi
1493                         ;;
1494                     *)
1495                         os=
1496                         obj=elf
1497                         ;;
1498                 esac
1499                 ;;
1500         aout* | coff* | elf* | pe*)
1501                 # These are machine code file formats, not OSes
1502                 obj=$os
1503                 os=
1504                 ;;
1505         *)
1506                 # No normalization, but not necessarily accepted, that comes below.
1507                 ;;
1508 esac
1509
1510 else
1511
1512 # Here we handle the default operating systems that come with various machines.
1513 # The value should be what the vendor currently ships out the door with their
1514 # machine or put another way, the most popular os provided with the machine.
1515
1516 # Note that if you're going to try to match "-MANUFACTURER" here (say,
1517 # "-sun"), then you have to tell the case statement up towards the top
1518 # that MANUFACTURER isn't an operating system.  Otherwise, code above
1519 # will signal an error saying that MANUFACTURER isn't an operating
1520 # system, and we'll never get to this point.
1521
1522 kernel=
1523 obj=
1524 case $cpu-$vendor in
1525         score-*)
1526                 os=
1527                 obj=elf
1528                 ;;
1529         spu-*)
1530                 os=
1531                 obj=elf
1532                 ;;
1533         *-acorn)
1534                 os=riscix1.2
1535                 ;;
1536         arm*-rebel)
1537                 kernel=linux
1538                 os=gnu
1539                 ;;
1540         arm*-semi)
1541                 os=
1542                 obj=aout
1543                 ;;
1544         c4x-* | tic4x-*)
1545                 os=
1546                 obj=coff
1547                 ;;
1548         c8051-*)
1549                 os=
1550                 obj=elf
1551                 ;;
1552         clipper-intergraph)
1553                 os=clix
1554                 ;;
1555         hexagon-*)
1556                 os=
1557                 obj=elf
1558                 ;;
1559         tic54x-*)
1560                 os=
1561                 obj=coff
1562                 ;;
1563         tic55x-*)
1564                 os=
1565                 obj=coff
1566                 ;;
1567         tic6x-*)
1568                 os=
1569                 obj=coff
1570                 ;;
1571         # This must come before the *-dec entry.
1572         pdp10-*)
1573                 os=tops20
1574                 ;;
1575         pdp11-*)
1576                 os=none
1577                 ;;
1578         *-dec | vax-*)
1579                 os=ultrix4.2
1580                 ;;
1581         m68*-apollo)
1582                 os=domain
1583                 ;;
1584         i386-sun)
1585                 os=sunos4.0.2
1586                 ;;
1587         m68000-sun)
1588                 os=sunos3
1589                 ;;
1590         m68*-cisco)
1591                 os=
1592                 obj=aout
1593                 ;;
1594         mep-*)
1595                 os=
1596                 obj=elf
1597                 ;;
1598         mips*-cisco)
1599                 os=
1600                 obj=elf
1601                 ;;
1602         mips*-*|nanomips*-*)
1603                 os=
1604                 obj=elf
1605                 ;;
1606         or32-*)
1607                 os=
1608                 obj=coff
1609                 ;;
1610         *-tti)  # must be before sparc entry or we get the wrong os.
1611                 os=sysv3
1612                 ;;
1613         sparc-* | *-sun)
1614                 os=sunos4.1.1
1615                 ;;
1616         pru-*)
1617                 os=
1618                 obj=elf
1619                 ;;
1620         *-be)
1621                 os=beos
1622                 ;;
1623         *-ibm)
1624                 os=aix
1625                 ;;
1626         *-knuth)
1627                 os=mmixware
1628                 ;;
1629         *-wec)
1630                 os=proelf
1631                 ;;
1632         *-winbond)
1633                 os=proelf
1634                 ;;
1635         *-oki)
1636                 os=proelf
1637                 ;;
1638         *-hp)
1639                 os=hpux
1640                 ;;
1641         *-hitachi)
1642                 os=hiux
1643                 ;;
1644         i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
1645                 os=sysv
1646                 ;;
1647         *-cbm)
1648                 os=amigaos
1649                 ;;
1650         *-dg)
1651                 os=dgux
1652                 ;;
1653         *-dolphin)
1654                 os=sysv3
1655                 ;;
1656         m68k-ccur)
1657                 os=rtu
1658                 ;;
1659         m88k-omron*)
1660                 os=luna
1661                 ;;
1662         *-next)
1663                 os=nextstep
1664                 ;;
1665         *-sequent)
1666                 os=ptx
1667                 ;;
1668         *-crds)
1669                 os=unos
1670                 ;;
1671         *-ns)
1672                 os=genix
1673                 ;;
1674         i370-*)
1675                 os=mvs
1676                 ;;
1677         *-gould)
1678                 os=sysv
1679                 ;;
1680         *-highlevel)
1681                 os=bsd
1682                 ;;
1683         *-encore)
1684                 os=bsd
1685                 ;;
1686         *-sgi)
1687                 os=irix
1688                 ;;
1689         *-siemens)
1690                 os=sysv4
1691                 ;;
1692         *-masscomp)
1693                 os=rtu
1694                 ;;
1695         f30[01]-fujitsu | f700-fujitsu)
1696                 os=uxpv
1697                 ;;
1698         *-rom68k)
1699                 os=
1700                 obj=coff
1701                 ;;
1702         *-*bug)
1703                 os=
1704                 obj=coff
1705                 ;;
1706         *-apple)
1707                 os=macos
1708                 ;;
1709         *-atari*)
1710                 os=mint
1711                 ;;
1712         *-wrs)
1713                 os=vxworks
1714                 ;;
1715         *)
1716                 os=none
1717                 ;;
1718 esac
1719
1720 fi
1721
1722 # Now, validate our (potentially fixed-up) individual pieces (OS, OBJ).
1723
1724 case $os in
1725         # Sometimes we do "kernel-libc", so those need to count as OSes.
1726         llvm* | musl* | newlib* | relibc* | uclibc*)
1727                 ;;
1728         # Likewise for "kernel-abi"
1729         eabi* | gnueabi*)
1730                 ;;
1731         # VxWorks passes extra cpu info in the 4th filed.
1732         simlinux | simwindows | spe)
1733                 ;;
1734         # See `case $cpu-$os` validation below
1735         ghcjs)
1736                 ;;
1737         # Now accept the basic system types.
1738         # The portable systems comes first.
1739         # Each alternative MUST end in a * to match a version number.
1740         gnu* | android* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
1741              | *vms* | esix* | aix* | cnk* | sunos | sunos[34]* \
1742              | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
1743              | sym* |  plan9* | psp* | sim* | xray* | os68k* | v88r* \
1744              | hiux* | abug | nacl* | netware* | windows* \
1745              | os9* | macos* | osx* | ios* | tvos* | watchos* \
1746              | mpw* | magic* | mmixware* | mon960* | lnews* \
1747              | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \
1748              | aos* | aros* | cloudabi* | sortix* | twizzler* \
1749              | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \
1750              | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \
1751              | mirbsd* | netbsd* | dicos* | openedition* | ose* \
1752              | bitrig* | openbsd* | secbsd* | solidbsd* | libertybsd* | os108* \
1753              | ekkobsd* | freebsd* | riscix* | lynxos* | os400* \
1754              | bosx* | nextstep* | cxux* | oabi* \
1755              | ptx* | ecoff* | winnt* | domain* | vsta* \
1756              | udi* | lites* | ieee* | go32* | aux* | hcos* \
1757              | chorusrdb* | cegcc* | glidix* | serenity* \
1758              | cygwin* | msys* | moss* | proelf* | rtems* \
1759              | midipix* | mingw32* | mingw64* | mint* \
1760              | uxpv* | beos* | mpeix* | udk* | moxiebox* \
1761              | interix* | uwin* | mks* | rhapsody* | darwin* \
1762              | openstep* | oskit* | conix* | pw32* | nonstopux* \
1763              | storm-chaos* | tops10* | tenex* | tops20* | its* \
1764              | os2* | vos* | palmos* | uclinux* | nucleus* | morphos* \
1765              | scout* | superux* | sysv* | rtmk* | tpf* | windiss* \
1766              | powermax* | dnix* | nx6 | nx7 | sei* | dragonfly* \
1767              | skyos* | haiku* | rdos* | toppers* | drops* | es* \
1768              | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
1769              | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
1770              | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
1771              | fiwix* | mlibc* | cos* | mbr* | ironclad* )
1772                 ;;
1773         # This one is extra strict with allowed versions
1774         sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
1775                 # Don't forget version if it is 3.2v4 or newer.
1776                 ;;
1777         # This refers to builds using the UEFI calling convention
1778         # (which depends on the architecture) and PE file format.
1779         # Note that this is both a different calling convention and
1780         # different file format than that of GNU-EFI
1781         # (x86_64-w64-mingw32).
1782         uefi)
1783                 ;;
1784         none)
1785                 ;;
1786         kernel* | msvc* )
1787                 # Restricted further below
1788                 ;;
1789         '')
1790                 if test x"$obj" = x
1791                 then
1792                         echo "Invalid configuration '$1': Blank OS only allowed with explicit machine code file format" 1>&2
1793                 fi
1794                 ;;
1795         *)
1796                 echo "Invalid configuration '$1': OS '$os' not recognized" 1>&2
1797                 exit 1
1798                 ;;
1799 esac
1800
1801 case $obj in
1802         aout* | coff* | elf* | pe*)
1803                 ;;
1804         '')
1805                 # empty is fine
1806                 ;;
1807         *)
1808                 echo "Invalid configuration '$1': Machine code format '$obj' not recognized" 1>&2
1809                 exit 1
1810                 ;;
1811 esac
1812
1813 # Here we handle the constraint that a (synthetic) cpu and os are
1814 # valid only in combination with each other and nowhere else.
1815 case $cpu-$os in
1816         # The "javascript-unknown-ghcjs" triple is used by GHC; we
1817         # accept it here in order to tolerate that, but reject any
1818         # variations.
1819         javascript-ghcjs)
1820                 ;;
1821         javascript-* | *-ghcjs)
1822                 echo "Invalid configuration '$1': cpu '$cpu' is not valid with os '$os$obj'" 1>&2
1823                 exit 1
1824                 ;;
1825 esac
1826
1827 # As a final step for OS-related things, validate the OS-kernel combination
1828 # (given a valid OS), if there is a kernel.
1829 case $kernel-$os-$obj in
1830         linux-gnu*- | linux-android*- | linux-dietlibc*- | linux-llvm*- \
1831                     | linux-mlibc*- | linux-musl*- | linux-newlib*- \
1832                     | linux-relibc*- | linux-uclibc*- )
1833                 ;;
1834         uclinux-uclibc*- )
1835                 ;;
1836         managarm-mlibc*- | managarm-kernel*- )
1837                 ;;
1838         windows*-msvc*-)
1839                 ;;
1840         -dietlibc*- | -llvm*- | -mlibc*- | -musl*- | -newlib*- | -relibc*- \
1841                     | -uclibc*- )
1842                 # These are just libc implementations, not actual OSes, and thus
1843                 # require a kernel.
1844                 echo "Invalid configuration '$1': libc '$os' needs explicit kernel." 1>&2
1845                 exit 1
1846                 ;;
1847         -kernel*- )
1848                 echo "Invalid configuration '$1': '$os' needs explicit kernel." 1>&2
1849                 exit 1
1850                 ;;
1851         *-kernel*- )
1852                 echo "Invalid configuration '$1': '$kernel' does not support '$os'." 1>&2
1853                 exit 1
1854                 ;;
1855         *-msvc*- )
1856                 echo "Invalid configuration '$1': '$os' needs 'windows'." 1>&2
1857                 exit 1
1858                 ;;
1859         kfreebsd*-gnu*- | kopensolaris*-gnu*-)
1860                 ;;
1861         vxworks-simlinux- | vxworks-simwindows- | vxworks-spe-)
1862                 ;;
1863         nto-qnx*-)
1864                 ;;
1865         os2-emx-)
1866                 ;;
1867         *-eabi*- | *-gnueabi*-)
1868                 ;;
1869         none--*)
1870                 # None (no kernel, i.e. freestanding / bare metal),
1871                 # can be paired with an machine code file format
1872                 ;;
1873         -*-)
1874                 # Blank kernel with real OS is always fine.
1875                 ;;
1876         --*)
1877                 # Blank kernel and OS with real machine code file format is always fine.
1878                 ;;
1879         *-*-*)
1880                 echo "Invalid configuration '$1': Kernel '$kernel' not known to work with OS '$os'." 1>&2
1881                 exit 1
1882                 ;;
1883 esac
1884
1885 # Here we handle the case where we know the os, and the CPU type, but not the
1886 # manufacturer.  We pick the logical manufacturer.
1887 case $vendor in
1888         unknown)
1889                 case $cpu-$os in
1890                         *-riscix*)
1891                                 vendor=acorn
1892                                 ;;
1893                         *-sunos*)
1894                                 vendor=sun
1895                                 ;;
1896                         *-cnk* | *-aix*)
1897                                 vendor=ibm
1898                                 ;;
1899                         *-beos*)
1900                                 vendor=be
1901                                 ;;
1902                         *-hpux*)
1903                                 vendor=hp
1904                                 ;;
1905                         *-mpeix*)
1906                                 vendor=hp
1907                                 ;;
1908                         *-hiux*)
1909                                 vendor=hitachi
1910                                 ;;
1911                         *-unos*)
1912                                 vendor=crds
1913                                 ;;
1914                         *-dgux*)
1915                                 vendor=dg
1916                                 ;;
1917                         *-luna*)
1918                                 vendor=omron
1919                                 ;;
1920                         *-genix*)
1921                                 vendor=ns
1922                                 ;;
1923                         *-clix*)
1924                                 vendor=intergraph
1925                                 ;;
1926                         *-mvs* | *-opened*)
1927                                 vendor=ibm
1928                                 ;;
1929                         *-os400*)
1930                                 vendor=ibm
1931                                 ;;
1932                         s390-* | s390x-*)
1933                                 vendor=ibm
1934                                 ;;
1935                         *-ptx*)
1936                                 vendor=sequent
1937                                 ;;
1938                         *-tpf*)
1939                                 vendor=ibm
1940                                 ;;
1941                         *-vxsim* | *-vxworks* | *-windiss*)
1942                                 vendor=wrs
1943                                 ;;
1944                         *-aux*)
1945                                 vendor=apple
1946                                 ;;
1947                         *-hms*)
1948                                 vendor=hitachi
1949                                 ;;
1950                         *-mpw* | *-macos*)
1951                                 vendor=apple
1952                                 ;;
1953                         *-*mint | *-mint[0-9]* | *-*MiNT | *-MiNT[0-9]*)
1954                                 vendor=atari
1955                                 ;;
1956                         *-vos*)
1957                                 vendor=stratus
1958                                 ;;
1959                 esac
1960                 ;;
1961 esac
1962
1963 echo "$cpu-$vendor${kernel:+-$kernel}${os:+-$os}${obj:+-$obj}"
1964 exit
1965
1966 # Local variables:
1967 # eval: (add-hook 'before-save-hook 'time-stamp)
1968 # time-stamp-start: "timestamp='"
1969 # time-stamp-format: "%:y-%02m-%02d"
1970 # time-stamp-end: "'"
1971 # End: