gcc/config.sub

   1 #!/bin/sh
   2 # Configuration validation subroutine script, version 1.1.
   3 #   Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
   4 # This file is (in principle) common to ALL GNU software.
   5 # The presence of a machine in this file suggests that SOME GNU software
   6 # can handle that machine.  It does not imply ALL GNU software can.
   7
   8 #This file is free software; you can redistribute it and/or modify
   9 #it under the terms of the GNU General Public License as published by
  10 #the Free Software Foundation; either version 2 of the License, or
  11 #(at your option) any later version.
  12
  13 #This program is distributed in the hope that it will be useful,
  14 #but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 #GNU General Public License for more details.
  17
  18 #You should have received a copy of the GNU General Public License
  19 #along with this program; if not, write to the Free Software
  20 #Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21
  22
  23 # Configuration subroutine to validate and canonicalize a configuration type.
  24 # Supply the specified configuration type as an argument.
  25 # If it is invalid, we print an error message on stderr and exit with code 1.
  26 # Otherwise, we print the canonical config type on stdout and succeed.
  27
  28 # This file is supposed to be the same for all GNU packages
  29 # and recognize all the CPU types, system types and aliases
  30 # that are meaningful with *any* GNU software.
  31 # Each package is responsible for reporting which valid configurations
  32 # it does not support.  The user should be able to distinguish
  33 # a failure to support a valid configuration from a meaningless
  34 # configuration.
  35
  36 # The goal of this file is to map all the various variations of a given
  37 # machine specification into a single specification in the form:
  38 #       CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
  39 # It is wrong to echo any other type of specification.
  40
  41 # First pass through any local machine types.
  42 case $1 in
  43         *local*)
  44                 echo $1
  45                 exit 0
  46                 ;;
  47         *)
  48         ;;
  49 esac
  50
  51 # Separate what the user gave into CPU-COMPANY and OS (if any).
  52 basic_machine=`echo $1 | sed 's/-[^-]*$//'`
  53 if [ $basic_machine != $1 ]
  54 then os=`echo $1 | sed 's/.*-/-/'`
  55 else os=; fi
  56
  57 ### Let's recognize common machines as not being operating systems so
  58 ### that things like config.sub decstation-3100 work.  We also
  59 ### recognize some manufacturers as not being operating systems, so we
  60 ### can provide default operating systems below.
  61 case $os in
  62         -sun*os*)
  63                 # Prevent following clause from handling this invalid input.
  64                 ;;
  65         -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
  66         -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
  67         -unicom* | -ibm* | -next* | -hp | -isi* | -apollo | -altos* | \
  68         -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
  69         -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
  70         -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp )
  71                 os=
  72                 basic_machine=$1
  73                 ;;
  74         -hiux*)
  75                 os=-hiuxwe2
  76                 ;;
  77         -sco4)
  78                 os=-sco3.2v4
  79                 basic_machine=`echo $1 | sed -e 's/86-.*/86-unknown/'`
  80                 ;;
  81         -sco3.2.[4-9]*)
  82                 os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
  83                 basic_machine=`echo $1 | sed -e 's/86-.*/86-unknown/'`
  84                 ;;
  85         -sco3.2v[4-9]*)
  86                 # Don't forget version if it is 3.2v4 or newer.
  87                 basic_machine=`echo $1 | sed -e 's/86-.*/86-unknown/'`
  88                 ;;
  89         -sco*)
  90                 os=-sco3.2v2
  91                 basic_machine=`echo $1 | sed -e 's/86-.*/86-unknown/'`
  92                 ;;
  93         -isc)
  94                 os=-isc2.2
  95                 basic_machine=`echo $1 | sed -e 's/86-.*/86-unknown/'`
  96                 ;;
  97         -clix*)
  98                 basic_machine=clipper-intergraph
  99                 ;;
 100         -isc*)
 101                 basic_machine=`echo $1 | sed -e 's/86-.*/86-unknown/'`
 102                 ;;
 103         -lynx)
 104                 os=-lynxos
 105                 ;;
 106 esac
 107
 108 # Decode aliases for certain CPU-COMPANY combinations.
 109 case $basic_machine in
 110         # Recognize the basic CPU types without company name.
 111         # Some are omitted here because they have special meanings below.
 112         tahoe | i[34]86 | i860 | m68k | m68000 | m88k | ns32k | arm | pyramid \
 113                 | tron | a29k | 580 | i960 | h8300 | hppa1.0 | hppa1.1 \
 114                 | alpha | we32k | ns16k | clipper | sparclite | i370 | sh \
 115                 | powerpc)
 116                 basic_machine=$basic_machine-unknown
 117                 ;;
 118         # Object if more than one company name word.
 119         *-*-*)
 120                 echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
 121                 exit 1
 122                 ;;
 123         # Recognize the basic CPU types with company name.
 124         vax-* | tahoe-* | i[34]86-* | i860-* | m68k-* | m68000-* | m88k-* \
 125               | sparc-* | ns32k-* | fx80-* | arm-* | c[123]* \
 126               | mips-* | pyramid-* | tron-* | a29k-* | romp-* | rs6000-* \
 127               | none-* | 580-* | cray2-* | h8300-* | i960-* | xmp-* | ymp-* \
 128               | hppa1.0-* | hppa1.1-* | alpha-* | we32k-* | cydra-* | ns16k-* \
 129               | pn-* | np1-* | xps100-* | clipper-* | orion-* | sparclite-* \
 130               | sh-* | powerpc-*)
 131                 ;;
 132         # Recognize the various machine names and aliases which stand
 133         # for a CPU type and a company and sometimes even an OS.
 134         3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
 135                 basic_machine=m68000-att
 136                 ;;
 137         3b*)
 138                 basic_machine=we32k-att
 139                 ;;
 140         alliant | fx80)
 141                 basic_machine=fx80-alliant
 142                 ;;
 143         altos | altos3068)
 144                 basic_machine=m68k-altos
 145                 ;;
 146         am29k)
 147                 basic_machine=a29k-none
 148                 os=-bsd
 149                 ;;
 150         amdahl)
 151                 basic_machine=580-amdahl
 152                 os=-sysv
 153                 ;;
 154         amiga)
 155                 basic_machine=m68k-cbm
 156                 ;;
 157         amigados)
 158                 basic_machine=m68k-cbm
 159                 os=-amigados
 160                 ;;
 161         amigaunix | amix)
 162                 basic_machine=m68k-cbm
 163                 os=-sysv4
 164                 ;;
 165         apollo68)
 166                 basic_machine=m68k-apollo
 167                 os=-sysv
 168                 ;;
 169         balance)
 170                 basic_machine=ns32k-sequent
 171                 os=-dynix
 172                 ;;
 173         convex-c1)
 174                 basic_machine=c1-convex
 175                 os=-bsd
 176                 ;;
 177         convex-c2)
 178                 basic_machine=c2-convex
 179                 os=-bsd
 180                 ;;
 181         convex-c32)
 182                 basic_machine=c32-convex
 183                 os=-bsd
 184                 ;;
 185         convex-c34)
 186                 basic_machine=c34-convex
 187                 os=-bsd
 188                 ;;
 189         convex-c38)
 190                 basic_machine=c38-convex
 191                 os=-bsd
 192                 ;;
 193         cray | ymp)
 194                 basic_machine=ymp-cray
 195                 os=-unicos
 196                 ;;
 197         cray2)
 198                 basic_machine=cray2-cray
 199                 os=-unicos
 200                 ;;
 201         crds | unos)
 202                 basic_machine=m68k-crds
 203                 ;;
 204         decstation | decstation-3100 | pmax | pmin | dec3100 | decstatn)
 205                 basic_machine=mips-dec
 206                 ;;
 207         delta | 3300 | motorola-3300 | motorola-delta \
 208               | 3300-motorola | delta-motorola)
 209                 basic_machine=m68k-motorola
 210                 ;;
 211         delta88)
 212                 basic_machine=m88k-motorola
 213                 os=-sysv3
 214                 ;;
 215         dpx20 | dpx20-*)
 216                 basic_machine=rs6000-bull
 217                 os=-bosx
 218                 ;;
 219         dpx2* | dpx2*-bull)
 220                 basic_machine=m68k-bull
 221                 os=-sysv3
 222                 ;;
 223         ebmon29k)
 224                 basic_machine=a29k-amd
 225                 os=-ebmon
 226                 ;;
 227         elxsi)
 228                 basic_machine=elxsi-elxsi
 229                 os=-bsd
 230                 ;;
 231         encore | umax | mmax)
 232                 basic_machine=ns32k-encore
 233                 ;;
 234         fx2800)
 235                 basic_machine=i860-alliant
 236                 ;;
 237         genix)
 238                 basic_machine=ns32k-ns
 239                 ;;
 240         gmicro)
 241                 basic_machine=tron-gmicro
 242                 os=-sysv
 243                 ;;
 244         h3050r* | hiux*)
 245                 basic_machine=hppa1.1-hitachi
 246                 os=-hiuxwe2
 247                 ;;
 248         h8300hms)
 249                 basic_machine=h8300-hitachi
 250                 os=-hms
 251                 ;;
 252         harris)
 253                 basic_machine=m88k-harris
 254                 os=-sysv3
 255                 ;;
 256         hp300bsd)
 257                 basic_machine=m68k-hp
 258                 os=-bsd
 259                 ;;
 260         hp300hpux)
 261                 basic_machine=m68k-hp
 262                 os=-hpux
 263                 ;;
 264         hp9k2[0-9][0-9] | hp9k31[0-9])
 265                 basic_machine=m68000-hp
 266                 ;;
 267         hp9k3[2-9][0-9])
 268                 basic_machine=m68k-hp
 269                 ;;
 270         hp9k7[0-9][0-9] | hp7[0-9][0-9] | hp9k8[0-9]7 | hp8[0-9]7)
 271                 basic_machine=hppa1.1-hp
 272                 ;;
 273         hp9k8[0-9][0-9] | hp8[0-9][0-9])
 274                 basic_machine=hppa1.0-hp
 275                 ;;
 276         i370-ibm* | ibm*)
 277                 basic_machine=i370-ibm
 278                 os=-mvs
 279                 ;;
 280 # I'm not sure what "Sysv32" means.  Should this be sysv3.2?
 281         i[34]86v32)
 282                 basic_machine=`echo $1 | sed -e 's/86.*/86-unknown/'`
 283                 os=-sysv32
 284                 ;;
 285         i[34]86v4*)
 286                 basic_machine=`echo $1 | sed -e 's/86.*/86-unknown/'`
 287                 os=-sysv4
 288                 ;;
 289         i[34]86v)
 290                 basic_machine=`echo $1 | sed -e 's/86.*/86-unknown/'`
 291                 os=-sysv
 292                 ;;
 293         i[34]86sol2)
 294                 basic_machine=`echo $1 | sed -e 's/86.*/86-unknown/'`
 295                 os=-solaris2
 296                 ;;
 297         iris | iris4d)
 298                 basic_machine=mips-sgi
 299                 case $os in
 300                     -irix*)
 301                         ;;
 302                     *)
 303                         os=-irix4
 304                         ;;
 305                 esac
 306                 ;;
 307         isi68 | isi)
 308                 basic_machine=m68k-isi
 309                 os=-sysv
 310                 ;;
 311         m88k-omron*)
 312                 basic_machine=m88k-omron
 313                 ;;
 314         magnum | m3230)
 315                 basic_machine=mips-mips
 316                 os=-sysv
 317                 ;;
 318         merlin)
 319                 basic_machine=ns32k-utek
 320                 os=-sysv
 321                 ;;
 322         miniframe)
 323                 basic_machine=m68000-convergent
 324                 ;;
 325         ncr3000)
 326                 basic_machine=i486-ncr
 327                 os=-sysv4
 328                 ;;
 329         news | news700 | news800 | news900)
 330                 basic_machine=m68k-sony
 331                 os=-newsos
 332                 ;;
 333         news1000)
 334                 basic_machine=m68030-sony
 335                 os=-newsos
 336                 ;;
 337         news-3600 | risc-news)
 338                 basic_machine=mips-sony
 339                 os=-newsos
 340                 ;;
 341         next)
 342                 basic_machine=m68k-next
 343                 os=-bsd
 344                 ;;
 345         nh3000)
 346                 basic_machine=m68k-harris
 347                 os=-cxux
 348                 ;;
 349         nh[45]000)
 350                 basic_machine=m88k-harris
 351                 os=-cxux
 352                 ;;
 353         nindy960)
 354                 basic_machine=i960-intel
 355                 os=-nindy
 356                 ;;
 357         np1)
 358                 basic_machine=np1-gould
 359                 ;;
 360         pa-hitachi)
 361                 basic_machine=hppa1.1-hitachi
 362                 os=-hiuxwe2
 363                 ;;
 364         paragon)
 365                 basic_machine=i860-intel
 366                 os=-osf
 367                 ;;
 368         pbd)
 369                 basic_machine=sparc-tti
 370                 ;;
 371         pbb)
 372                 basic_machine=m68k-tti
 373                 ;;
 374         pc532)
 375                 basic_machine=ns32k-pc532
 376                 ;;
 377         pn)
 378                 basic_machine=pn-gould
 379                 ;;
 380         ps2)
 381                 basic_machine=i386-ibm
 382                 ;;
 383         rtpc | rtpc-*)
 384                 basic_machine=romp-ibm
 385                 ;;
 386         sh)
 387                 basic_machine=sh-hitachi
 388                 os=-hms
 389                 ;;
 390         sps7)
 391                 basic_machine=m68k-bull
 392                 os=-sysv2
 393                 ;;
 394         spur)
 395                 basic_machine=spur-unknown
 396                 ;;
 397         sun2)
 398                 basic_machine=m68000-sun
 399                 ;;
 400         sun2os3)
 401                 basic_machine=m68000-sun
 402                 os=-sunos3
 403                 ;;
 404         sun2os4)
 405                 basic_machine=m68000-sun
 406                 os=-sunos4
 407                 ;;
 408         sun3os3)
 409                 basic_machine=m68k-sun
 410                 os=-sunos3
 411                 ;;
 412         sun3os4)
 413                 basic_machine=m68k-sun
 414                 os=-sunos4
 415                 ;;
 416         sun4os3)
 417                 basic_machine=sparc-sun
 418                 os=-sunos3
 419                 ;;
 420         sun4os4)
 421                 basic_machine=sparc-sun
 422                 os=-sunos4
 423                 ;;
 424         sun3)
 425                 basic_machine=m68k-sun
 426                 ;;
 427         sun4)
 428                 basic_machine=sparc-sun
 429                 ;;
 430         sun386 | sun386i | roadrunner)
 431                 basic_machine=i386-sun
 432                 ;;
 433         symmetry)
 434                 basic_machine=i386-sequent
 435                 os=-dynix
 436                 ;;
 437         tower | tower-32)
 438                 basic_machine=m68k-ncr
 439                 ;;
 440         ultra3)
 441                 basic_machine=a29k-nyu
 442                 os=-sym1
 443                 ;;
 444         vaxv)
 445                 basic_machine=vax-dec
 446                 os=-sysv
 447                 ;;
 448         vms)
 449                 basic_machine=vax-dec
 450                 os=-vms
 451                 ;;
 452         vxworks960)
 453                 basic_machine=i960-wrs
 454                 os=-vxworks
 455                 ;;
 456         vxworks68)
 457                 basic_machine=m68k-wrs
 458                 os=-vxworks
 459                 ;;
 460         xmp)
 461                 basic_machine=xmp-cray
 462                 os=-unicos
 463                 ;;
 464         xps | xps100)
 465                 basic_machine=xps100-honeywell
 466                 ;;
 467         none)
 468                 basic_machine=none-none
 469                 os=-none
 470                 ;;
 471
 472 # Here we handle the default manufacturer of certain CPU types.  It is in
 473 # some cases the only manufacturer, in others, it is the most popular.
 474         mips)
 475                 basic_machine=mips-mips
 476                 ;;
 477         romp)
 478                 basic_machine=romp-ibm
 479                 ;;
 480         rs6000)
 481                 basic_machine=rs6000-ibm
 482                 ;;
 483         vax)
 484                 basic_machine=vax-dec
 485                 ;;
 486         we32k)
 487                 basic_machine=we32k-att
 488                 ;;
 489         sparc)
 490                 basic_machine=sparc-sun
 491                 ;;
 492         cydra)
 493                 basic_machine=cydra-cydrome
 494                 ;;
 495         orion)
 496                 basic_machine=orion-highlevel
 497                 ;;
 498         orion105)
 499                 basic_machine=clipper-highlevel
 500                 ;;
 501         *)
 502                 echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
 503                 exit 1
 504                 ;;
 505 esac
 506
 507 # Here we canonicalize certain aliases for manufacturers.
 508 case $basic_machine in
 509         *-digital*)
 510                 basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
 511                 ;;
 512         *-commodore*)
 513                 basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
 514                 ;;
 515         *)
 516                 ;;
 517 esac
 518
 519 # Decode manufacturer-specific aliases for certain operating systems.
 520
 521 if [ x"$os" != x"" ]
 522 then
 523 case $os in
 524         # -solaris* is a basic system type, with this one exception.
 525         -solaris1 | -solaris1.*)
 526                 os=`echo $os | sed -e 's|solaris1|sunos4|'`
 527                 ;;
 528         -solaris)
 529                 os=-solaris2
 530                 ;;
 531         # First accept the basic system types.
 532         # The portable systems comes first.
 533         # Each alternative must end in a *, to match a version number.
 534         # -sysv* is not here because it comes later, after sysvr4.
 535         -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
 536               | -vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[34]* | -hpux* \
 537               | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
 538               | -amigados* | -msdos* | -newsos* | -unicos* | -aos* \
 539               | -nindy* | -vxworks* | -ebmon* | -hms* | -mvs* | -clix* \
 540               | -riscos* | -linux* | -uniplus* | -iris* | -rtu* | -xenix* \
 541               | -hiux* | -386bsd* | -netbsd* | -freebsd* | -riscix* \
 542               | -lynxos* | -bosx* )
 543                 ;;
 544         -sunos5*)
 545                 os=`echo $os | sed -e 's|sunos5|solaris2|'`
 546                 ;;
 547         -sunos6*)
 548                 os=`echo $os | sed -e 's|sunos6|solaris3|'`
 549                 ;;
 550         -osfrose*)
 551                 os=-osfrose
 552                 ;;
 553         -osf*)
 554                 os=-osf
 555                 ;;
 556         -utek*)
 557                 os=-bsd
 558                 ;;
 559         -dynix*)
 560                 os=-bsd
 561                 ;;
 562         -acis*)
 563                 os=-aos
 564                 ;;
 565         -ctix* | -uts*)
 566                 os=-sysv
 567                 ;;
 568         -triton*)
 569                 os=-sysv3
 570                 ;;
 571         -oss*)
 572                 os=-sysv3
 573                 ;;
 574         -svr4)
 575                 os=-sysv4
 576                 ;;
 577         -svr3)
 578                 os=-sysv3
 579                 ;;
 580         -sysvr4)
 581                 os=-sysv4
 582                 ;;
 583         # This must come after -sysvr4.
 584         -sysv*)
 585                 ;;
 586         -xenix)
 587                 os=-xenix
 588                 ;;
 589         -none)
 590                 ;;
 591         *)
 592                 # Get rid of the `-' at the beginning of $os.
 593                 os=`echo $1 | sed 's/[^-]*-//'`
 594                 echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
 595                 exit 1
 596                 ;;
 597 esac
 598 else
 599
 600 # Here we handle the default operating systems that come with various machines.
 601 # The value should be what the vendor currently ships out the door with their
 602 # machine or put another way, the most popular os provided with the machine.
 603
 604 # Note that if you're going to try to match "-MANUFACTURER" here (say,
 605 # "-sun"), then you have to tell the case statement up towards the top
 606 # that MANUFACTURER isn't an operating system.  Otherwise, code above
 607 # will signal an error saying that MANUFACTURER isn't an operating
 608 # system, and we'll never get to this point.
 609
 610 case $basic_machine in
 611         *-acorn)
 612                 os=-riscix1.2
 613                 ;;
 614         *-dec | vax-*)
 615                 os=-ultrix4.2
 616                 ;;
 617         i386-sun)
 618                 os=-sunos4.0.2
 619                 ;;
 620         m68000-sun)
 621                 os=-sunos3
 622                 # This also exists in the configure program, but was not the
 623                 # default.
 624                 # os=-sunos4
 625                 ;;
 626         *-tti)  # must be before sparc entry or we get the wrong os.
 627                 os=-sysv3
 628                 ;;
 629         sparc-* | *-sun)
 630                 os=-sunos4.1.1
 631                 ;;
 632         *-ibm)
 633                 os=-aix
 634                 ;;
 635         *-hp)
 636                 os=-hpux
 637                 ;;
 638         *-hitachi)
 639                 os=-hiux
 640                 ;;
 641         i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
 642                 os=-sysv
 643                 ;;
 644         *-cbm)
 645                 os=-amigados
 646                 ;;
 647         *-dg)
 648                 os=-dgux
 649                 ;;
 650         *-dolphin)
 651                 os=-sysv3
 652                 ;;
 653         m88k-omron*)
 654                 os=-luna
 655                 ;;
 656         *-sequent)
 657                 os=-bsd
 658                 ;;
 659         *-crds)
 660                 os=-unos
 661                 ;;
 662         *-ns)
 663                 os=-genix
 664                 ;;
 665         i370-*)
 666                 os=-mvs
 667                 ;;
 668         *-next)
 669                 os=-bsd
 670                 ;;
 671         i[34]86-*)
 672                 os=-sco3.2v2
 673                 ;;
 674         *-gould)
 675                 os=-sysv
 676                 ;;
 677         *-highlevel)
 678                 os=-bsd
 679                 ;;
 680         *-encore)
 681                 os=-bsd
 682                 ;;
 683         *-sgi)
 684                 os=-irix
 685                 ;;
 686         *-masscomp)
 687                 os=-rtu
 688                 ;;
 689         *)
 690                 os=-none
 691                 ;;
 692 esac
 693 fi
 694
 695 # Here we handle the case where we know the os, and the CPU type, but not the
 696 # manufacturer.  We pick the logical manufacturer.
 697 vendor=unknown
 698 case $basic_machine in
 699         *-unknown)
 700                 case $os in
 701                         -riscix*)
 702                                 vendor=acorn
 703                                 ;;
 704                         -sunos*)
 705                                 vendor=sun
 706                                 ;;
 707                         -lynxos*)
 708                                 vendor=lynx
 709                                 ;;
 710                         -aix*)
 711                                 vendor=ibm
 712                                 ;;
 713                         -hpux*)
 714                                 vendor=hp
 715                                 ;;
 716                         -hiux*)
 717                                 vendor=hitachi
 718                                 ;;
 719                         -unos*)
 720                                 vendor=crds
 721                                 ;;
 722                         -dgux*)
 723                                 vendor=dg
 724                                 ;;
 725                         -luna*)
 726                                 vendor=omron
 727                                 ;;
 728                         -genix*)
 729                                 vendor=ns
 730                                 ;;
 731                         -mvs*)
 732                                 vendor=ibm
 733                                 ;;
 734                 esac
 735                 basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
 736                 ;;
 737 esac
 738
 739 echo $basic_machine$os