xref: /freebsd/contrib/byacc/config.sub (revision 7899f917b1c0ea178f1d2be0cfb452086d079d23)
1#! /bin/sh
2# Configuration validation subroutine script.
3#   Copyright 1992-2023 Free Software Foundation, Inc.
4
5# shellcheck disable=SC2006,SC2268 # see below for rationale
6
7timestamp='2023-09-15'
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
62me=`echo "$0" | sed -e 's,.*/,,'`
63
64usage="\
65Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
66
67Canonicalize a configuration name.
68
69Options:
70  -h, --help         print this help, then exit
71  -t, --time-stamp   print date of last modification, then exit
72  -v, --version      print version number, then exit
73
74Report bugs and patches to <config-patches@gnu.org>."
75
76version="\
77GNU config.sub ($timestamp)
78
79Copyright 1992-2023 Free Software Foundation, Inc.
80
81This is free software; see the source for copying conditions.  There is NO
82warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
83
84help="
85Try '$me --help' for more information."
86
87# Parse command line
88while 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
112done
113
114case $# in
115 0) echo "$me: missing argument$help" >&2
116    exit 1;;
117 1) ;;
118 *) echo "$me: too many arguments$help" >&2
119    exit 1;;
120esac
121
122# Split fields of configuration type
123# shellcheck disable=SC2162
124saved_IFS=$IFS
125IFS="-" read field1 field2 field3 field4 <<EOF
126$1
127EOF
128IFS=$saved_IFS
129
130# Separate into logical components for further validation
131case $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		;;
657esac
658
659# Decode 1-component or ad-hoc basic machines
660case $basic_machine in
661	# Here we handle the default manufacturer of certain CPU types.  It is in
662	# some cases the only manufacturer, in others, it is the most popular.
663	w89k)
664		cpu=hppa1.1
665		vendor=winbond
666		;;
667	op50n)
668		cpu=hppa1.1
669		vendor=oki
670		;;
671	op60c)
672		cpu=hppa1.1
673		vendor=oki
674		;;
675	ibm*)
676		cpu=i370
677		vendor=ibm
678		;;
679	orion105)
680		cpu=clipper
681		vendor=highlevel
682		;;
683	mac | mpw | mac-mpw)
684		cpu=m68k
685		vendor=apple
686		;;
687	pmac | pmac-mpw)
688		cpu=powerpc
689		vendor=apple
690		;;
691
692	# Recognize the various machine names and aliases which stand
693	# for a CPU type and a company and sometimes even an OS.
694	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
695		cpu=m68000
696		vendor=att
697		;;
698	3b*)
699		cpu=we32k
700		vendor=att
701		;;
702	bluegene*)
703		cpu=powerpc
704		vendor=ibm
705		basic_os=cnk
706		;;
707	decsystem10* | dec10*)
708		cpu=pdp10
709		vendor=dec
710		basic_os=tops10
711		;;
712	decsystem20* | dec20*)
713		cpu=pdp10
714		vendor=dec
715		basic_os=tops20
716		;;
717	delta | 3300 | motorola-3300 | motorola-delta \
718	      | 3300-motorola | delta-motorola)
719		cpu=m68k
720		vendor=motorola
721		;;
722	dpx2*)
723		cpu=m68k
724		vendor=bull
725		basic_os=sysv3
726		;;
727	encore | umax | mmax)
728		cpu=ns32k
729		vendor=encore
730		;;
731	elxsi)
732		cpu=elxsi
733		vendor=elxsi
734		basic_os=${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
944EOF
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		;;
969esac
970
971unset -v basic_machine
972
973# Decode basic machines in the full and proper CPU-Company form.
974case $cpu-$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			| nds32 | nds32le | nds32be \
1226			| nfp \
1227			| nios | nios2 | nios2eb | nios2el \
1228			| none | np1 | ns16k | ns32k | nvptx \
1229			| open8 \
1230			| or1k* \
1231			| or32 \
1232			| orion \
1233			| picochip \
1234			| pdp10 | pdp11 | pj | pjl | pn | power \
1235			| powerpc | powerpc64 | powerpc64le | powerpcle | powerpcspe \
1236			| pru \
1237			| pyramid \
1238			| riscv | riscv32 | riscv32be | riscv64 | riscv64be \
1239			| rl78 | romp | rs6000 | rx \
1240			| s390 | s390x \
1241			| score \
1242			| sh | shl \
1243			| sh[1234] | sh[24]a | sh[24]ae[lb] | sh[23]e | she[lb] | sh[lb]e \
1244			| sh[1234]e[lb] |  sh[12345][lb]e | sh[23]ele | sh64 | sh64le \
1245			| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet \
1246			| sparclite \
1247			| sparcv8 | sparcv9 | sparcv9b | sparcv9v | sv1 | sx* \
1248			| spu \
1249			| tahoe \
1250			| thumbv7* \
1251			| tic30 | tic4x | tic54x | tic55x | tic6x | tic80 \
1252			| tron \
1253			| ubicom32 \
1254			| v70 | v850 | v850e | v850e1 | v850es | v850e2 | v850e2v3 \
1255			| vax \
1256			| visium \
1257			| w65 \
1258			| wasm32 | wasm64 \
1259			| we32k \
1260			| x86 | x86_64 | xc16x | xgate | xps100 \
1261			| xstormy16 | xtensa* \
1262			| ymp \
1263			| z8k | z80)
1264				;;
1265
1266			*)
1267				echo "Invalid configuration '$1': machine '$cpu-$vendor' not recognized" 1>&2
1268				exit 1
1269				;;
1270		esac
1271		;;
1272esac
1273
1274# Here we canonicalize certain aliases for manufacturers.
1275case $vendor in
1276	digital*)
1277		vendor=dec
1278		;;
1279	commodore*)
1280		vendor=cbm
1281		;;
1282	*)
1283		;;
1284esac
1285
1286# Decode manufacturer-specific aliases for certain operating systems.
1287
1288if test x"$basic_os" != x
1289then
1290
1291# First recognize some ad-hoc cases, or perhaps split kernel-os, or else just
1292# set os.
1293obj=
1294case $basic_os in
1295	gnu/linux*)
1296		kernel=linux
1297		os=`echo "$basic_os" | sed -e 's|gnu/linux|gnu|'`
1298		;;
1299	os2-emx)
1300		kernel=os2
1301		os=`echo "$basic_os" | sed -e 's|os2-emx|emx|'`
1302		;;
1303	nto-qnx*)
1304		kernel=nto
1305		os=`echo "$basic_os" | sed -e 's|nto-qnx|qnx|'`
1306		;;
1307	*-*)
1308		# shellcheck disable=SC2162
1309		saved_IFS=$IFS
1310		IFS="-" read kernel os <<EOF
1311$basic_os
1312EOF
1313		IFS=$saved_IFS
1314		;;
1315	# Default OS when just kernel was specified
1316	nto*)
1317		kernel=nto
1318		os=`echo "$basic_os" | sed -e 's|nto|qnx|'`
1319		;;
1320	linux*)
1321		kernel=linux
1322		os=`echo "$basic_os" | sed -e 's|linux|gnu|'`
1323		;;
1324	managarm*)
1325		kernel=managarm
1326		os=`echo "$basic_os" | sed -e 's|managarm|mlibc|'`
1327		;;
1328	*)
1329		kernel=
1330		os=$basic_os
1331		;;
1332esac
1333
1334# Now, normalize the OS (knowing we just have one component, it's not a kernel,
1335# etc.)
1336case $os in
1337	# First match some system type aliases that might get confused
1338	# with valid system types.
1339	# solaris* is a basic system type, with this one exception.
1340	auroraux)
1341		os=auroraux
1342		;;
1343	bluegene*)
1344		os=cnk
1345		;;
1346	solaris1 | solaris1.*)
1347		os=`echo "$os" | sed -e 's|solaris1|sunos4|'`
1348		;;
1349	solaris)
1350		os=solaris2
1351		;;
1352	unixware*)
1353		os=sysv4.2uw
1354		;;
1355	# es1800 is here to avoid being matched by es* (a different OS)
1356	es1800*)
1357		os=ose
1358		;;
1359	# Some version numbers need modification
1360	chorusos*)
1361		os=chorusos
1362		;;
1363	isc)
1364		os=isc2.2
1365		;;
1366	sco6)
1367		os=sco5v6
1368		;;
1369	sco5)
1370		os=sco3.2v5
1371		;;
1372	sco4)
1373		os=sco3.2v4
1374		;;
1375	sco3.2.[4-9]*)
1376		os=`echo "$os" | sed -e 's/sco3.2./sco3.2v/'`
1377		;;
1378	sco*v* | scout)
1379		# Don't match below
1380		;;
1381	sco*)
1382		os=sco3.2v2
1383		;;
1384	psos*)
1385		os=psos
1386		;;
1387	qnx*)
1388		os=qnx
1389		;;
1390	hiux*)
1391		os=hiuxwe2
1392		;;
1393	lynx*178)
1394		os=lynxos178
1395		;;
1396	lynx*5)
1397		os=lynxos5
1398		;;
1399	lynxos*)
1400		# don't get caught up in next wildcard
1401		;;
1402	lynx*)
1403		os=lynxos
1404		;;
1405	mac[0-9]*)
1406		os=`echo "$os" | sed -e 's|mac|macos|'`
1407		;;
1408	opened*)
1409		os=openedition
1410		;;
1411	os400*)
1412		os=os400
1413		;;
1414	sunos5*)
1415		os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
1416		;;
1417	sunos6*)
1418		os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
1419		;;
1420	wince*)
1421		os=wince
1422		;;
1423	utek*)
1424		os=bsd
1425		;;
1426	dynix*)
1427		os=bsd
1428		;;
1429	acis*)
1430		os=aos
1431		;;
1432	atheos*)
1433		os=atheos
1434		;;
1435	syllable*)
1436		os=syllable
1437		;;
1438	386bsd)
1439		os=bsd
1440		;;
1441	ctix* | uts*)
1442		os=sysv
1443		;;
1444	nova*)
1445		os=rtmk-nova
1446		;;
1447	ns2)
1448		os=nextstep2
1449		;;
1450	# Preserve the version number of sinix5.
1451	sinix5.*)
1452		os=`echo "$os" | sed -e 's|sinix|sysv|'`
1453		;;
1454	sinix*)
1455		os=sysv4
1456		;;
1457	tpf*)
1458		os=tpf
1459		;;
1460	triton*)
1461		os=sysv3
1462		;;
1463	oss*)
1464		os=sysv3
1465		;;
1466	svr4*)
1467		os=sysv4
1468		;;
1469	svr3)
1470		os=sysv3
1471		;;
1472	sysvr4)
1473		os=sysv4
1474		;;
1475	ose*)
1476		os=ose
1477		;;
1478	*mint | mint[0-9]* | *MiNT | MiNT[0-9]*)
1479		os=mint
1480		;;
1481	dicos*)
1482		os=dicos
1483		;;
1484	pikeos*)
1485		# Until real need of OS specific support for
1486		# particular features comes up, bare metal
1487		# configurations are quite functional.
1488		case $cpu in
1489		    arm*)
1490			os=eabi
1491			;;
1492		    *)
1493			os=
1494			obj=elf
1495			;;
1496		esac
1497		;;
1498	aout* | coff* | elf* | pe*)
1499		# These are machine code file formats, not OSes
1500		obj=$os
1501		os=
1502		;;
1503	*)
1504		# No normalization, but not necessarily accepted, that comes below.
1505		;;
1506esac
1507
1508else
1509
1510# Here we handle the default operating systems that come with various machines.
1511# The value should be what the vendor currently ships out the door with their
1512# machine or put another way, the most popular os provided with the machine.
1513
1514# Note that if you're going to try to match "-MANUFACTURER" here (say,
1515# "-sun"), then you have to tell the case statement up towards the top
1516# that MANUFACTURER isn't an operating system.  Otherwise, code above
1517# will signal an error saying that MANUFACTURER isn't an operating
1518# system, and we'll never get to this point.
1519
1520kernel=
1521obj=
1522case $cpu-$vendor in
1523	score-*)
1524		os=
1525		obj=elf
1526		;;
1527	spu-*)
1528		os=
1529		obj=elf
1530		;;
1531	*-acorn)
1532		os=riscix1.2
1533		;;
1534	arm*-rebel)
1535		kernel=linux
1536		os=gnu
1537		;;
1538	arm*-semi)
1539		os=
1540		obj=aout
1541		;;
1542	c4x-* | tic4x-*)
1543		os=
1544		obj=coff
1545		;;
1546	c8051-*)
1547		os=
1548		obj=elf
1549		;;
1550	clipper-intergraph)
1551		os=clix
1552		;;
1553	hexagon-*)
1554		os=
1555		obj=elf
1556		;;
1557	tic54x-*)
1558		os=
1559		obj=coff
1560		;;
1561	tic55x-*)
1562		os=
1563		obj=coff
1564		;;
1565	tic6x-*)
1566		os=
1567		obj=coff
1568		;;
1569	# This must come before the *-dec entry.
1570	pdp10-*)
1571		os=tops20
1572		;;
1573	pdp11-*)
1574		os=none
1575		;;
1576	*-dec | vax-*)
1577		os=ultrix4.2
1578		;;
1579	m68*-apollo)
1580		os=domain
1581		;;
1582	i386-sun)
1583		os=sunos4.0.2
1584		;;
1585	m68000-sun)
1586		os=sunos3
1587		;;
1588	m68*-cisco)
1589		os=
1590		obj=aout
1591		;;
1592	mep-*)
1593		os=
1594		obj=elf
1595		;;
1596	mips*-cisco)
1597		os=
1598		obj=elf
1599		;;
1600	mips*-*)
1601		os=
1602		obj=elf
1603		;;
1604	or32-*)
1605		os=
1606		obj=coff
1607		;;
1608	*-tti)	# must be before sparc entry or we get the wrong os.
1609		os=sysv3
1610		;;
1611	sparc-* | *-sun)
1612		os=sunos4.1.1
1613		;;
1614	pru-*)
1615		os=
1616		obj=elf
1617		;;
1618	*-be)
1619		os=beos
1620		;;
1621	*-ibm)
1622		os=aix
1623		;;
1624	*-knuth)
1625		os=mmixware
1626		;;
1627	*-wec)
1628		os=proelf
1629		;;
1630	*-winbond)
1631		os=proelf
1632		;;
1633	*-oki)
1634		os=proelf
1635		;;
1636	*-hp)
1637		os=hpux
1638		;;
1639	*-hitachi)
1640		os=hiux
1641		;;
1642	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
1643		os=sysv
1644		;;
1645	*-cbm)
1646		os=amigaos
1647		;;
1648	*-dg)
1649		os=dgux
1650		;;
1651	*-dolphin)
1652		os=sysv3
1653		;;
1654	m68k-ccur)
1655		os=rtu
1656		;;
1657	m88k-omron*)
1658		os=luna
1659		;;
1660	*-next)
1661		os=nextstep
1662		;;
1663	*-sequent)
1664		os=ptx
1665		;;
1666	*-crds)
1667		os=unos
1668		;;
1669	*-ns)
1670		os=genix
1671		;;
1672	i370-*)
1673		os=mvs
1674		;;
1675	*-gould)
1676		os=sysv
1677		;;
1678	*-highlevel)
1679		os=bsd
1680		;;
1681	*-encore)
1682		os=bsd
1683		;;
1684	*-sgi)
1685		os=irix
1686		;;
1687	*-siemens)
1688		os=sysv4
1689		;;
1690	*-masscomp)
1691		os=rtu
1692		;;
1693	f30[01]-fujitsu | f700-fujitsu)
1694		os=uxpv
1695		;;
1696	*-rom68k)
1697		os=
1698		obj=coff
1699		;;
1700	*-*bug)
1701		os=
1702		obj=coff
1703		;;
1704	*-apple)
1705		os=macos
1706		;;
1707	*-atari*)
1708		os=mint
1709		;;
1710	*-wrs)
1711		os=vxworks
1712		;;
1713	*)
1714		os=none
1715		;;
1716esac
1717
1718fi
1719
1720# Now, validate our (potentially fixed-up) individual pieces (OS, OBJ).
1721
1722case $os in
1723	# Sometimes we do "kernel-libc", so those need to count as OSes.
1724	musl* | newlib* | relibc* | uclibc*)
1725		;;
1726	# Likewise for "kernel-abi"
1727	eabi* | gnueabi*)
1728		;;
1729	# VxWorks passes extra cpu info in the 4th filed.
1730	simlinux | simwindows | spe)
1731		;;
1732	# See `case $cpu-$os` validation below
1733	ghcjs)
1734		;;
1735	# Now accept the basic system types.
1736	# The portable systems comes first.
1737	# Each alternative MUST end in a * to match a version number.
1738	gnu* | android* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
1739	     | *vms* | esix* | aix* | cnk* | sunos | sunos[34]* \
1740	     | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
1741	     | sym* |  plan9* | psp* | sim* | xray* | os68k* | v88r* \
1742	     | hiux* | abug | nacl* | netware* | windows* \
1743	     | os9* | macos* | osx* | ios* | tvos* | watchos* \
1744	     | mpw* | magic* | mmixware* | mon960* | lnews* \
1745	     | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \
1746	     | aos* | aros* | cloudabi* | sortix* | twizzler* \
1747	     | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \
1748	     | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \
1749	     | mirbsd* | netbsd* | dicos* | openedition* | ose* \
1750	     | bitrig* | openbsd* | secbsd* | solidbsd* | libertybsd* | os108* \
1751	     | ekkobsd* | freebsd* | riscix* | lynxos* | os400* \
1752	     | bosx* | nextstep* | cxux* | oabi* \
1753	     | ptx* | ecoff* | winnt* | domain* | vsta* \
1754	     | udi* | lites* | ieee* | go32* | aux* | hcos* \
1755	     | chorusrdb* | cegcc* | glidix* | serenity* \
1756	     | cygwin* | msys* | moss* | proelf* | rtems* \
1757	     | midipix* | mingw32* | mingw64* | mint* \
1758	     | uxpv* | beos* | mpeix* | udk* | moxiebox* \
1759	     | interix* | uwin* | mks* | rhapsody* | darwin* \
1760	     | openstep* | oskit* | conix* | pw32* | nonstopux* \
1761	     | storm-chaos* | tops10* | tenex* | tops20* | its* \
1762	     | os2* | vos* | palmos* | uclinux* | nucleus* | morphos* \
1763	     | scout* | superux* | sysv* | rtmk* | tpf* | windiss* \
1764	     | powermax* | dnix* | nx6 | nx7 | sei* | dragonfly* \
1765	     | skyos* | haiku* | rdos* | toppers* | drops* | es* \
1766	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
1767	     | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
1768	     | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
1769	     | fiwix* | mlibc* | cos* | mbr* )
1770		;;
1771	# This one is extra strict with allowed versions
1772	sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
1773		# Don't forget version if it is 3.2v4 or newer.
1774		;;
1775	none)
1776		;;
1777	kernel* | msvc* )
1778		# Restricted further below
1779		;;
1780	'')
1781		if test x"$obj" = x
1782		then
1783			echo "Invalid configuration '$1': Blank OS only allowed with explicit machine code file format" 1>&2
1784		fi
1785		;;
1786	*)
1787		echo "Invalid configuration '$1': OS '$os' not recognized" 1>&2
1788		exit 1
1789		;;
1790esac
1791
1792case $obj in
1793	aout* | coff* | elf* | pe*)
1794		;;
1795	'')
1796		# empty is fine
1797		;;
1798	*)
1799		echo "Invalid configuration '$1': Machine code format '$obj' not recognized" 1>&2
1800		exit 1
1801		;;
1802esac
1803
1804# Here we handle the constraint that a (synthetic) cpu and os are
1805# valid only in combination with each other and nowhere else.
1806case $cpu-$os in
1807	# The "javascript-unknown-ghcjs" triple is used by GHC; we
1808	# accept it here in order to tolerate that, but reject any
1809	# variations.
1810	javascript-ghcjs)
1811		;;
1812	javascript-* | *-ghcjs)
1813		echo "Invalid configuration '$1': cpu '$cpu' is not valid with os '$os$obj'" 1>&2
1814		exit 1
1815		;;
1816esac
1817
1818# As a final step for OS-related things, validate the OS-kernel combination
1819# (given a valid OS), if there is a kernel.
1820case $kernel-$os-$obj in
1821	linux-gnu*- | linux-dietlibc*- | linux-android*- | linux-newlib*- \
1822		   | linux-musl*- | linux-relibc*- | linux-uclibc*- | linux-mlibc*- )
1823		;;
1824	uclinux-uclibc*- )
1825		;;
1826	managarm-mlibc*- | managarm-kernel*- )
1827		;;
1828	windows*-gnu*- | windows*-msvc*-)
1829		;;
1830	-dietlibc*- | -newlib*- | -musl*- | -relibc*- | -uclibc*- | -mlibc*- )
1831		# These are just libc implementations, not actual OSes, and thus
1832		# require a kernel.
1833		echo "Invalid configuration '$1': libc '$os' needs explicit kernel." 1>&2
1834		exit 1
1835		;;
1836	-kernel*- )
1837		echo "Invalid configuration '$1': '$os' needs explicit kernel." 1>&2
1838		exit 1
1839		;;
1840	*-kernel*- )
1841		echo "Invalid configuration '$1': '$kernel' does not support '$os'." 1>&2
1842		exit 1
1843		;;
1844	*-msvc*- )
1845		echo "Invalid configuration '$1': '$os' needs 'windows'." 1>&2
1846		exit 1
1847		;;
1848	kfreebsd*-gnu*- | kopensolaris*-gnu*-)
1849		;;
1850	vxworks-simlinux- | vxworks-simwindows- | vxworks-spe-)
1851		;;
1852	nto-qnx*-)
1853		;;
1854	os2-emx-)
1855		;;
1856	*-eabi*- | *-gnueabi*-)
1857		;;
1858	none--*)
1859		# None (no kernel, i.e. freestanding / bare metal),
1860		# can be paired with an machine code file format
1861		;;
1862	-*-)
1863		# Blank kernel with real OS is always fine.
1864		;;
1865	--*)
1866		# Blank kernel and OS with real machine code file format is always fine.
1867		;;
1868	*-*-*)
1869		echo "Invalid configuration '$1': Kernel '$kernel' not known to work with OS '$os'." 1>&2
1870		exit 1
1871		;;
1872esac
1873
1874# Here we handle the case where we know the os, and the CPU type, but not the
1875# manufacturer.  We pick the logical manufacturer.
1876case $vendor in
1877	unknown)
1878		case $cpu-$os in
1879			*-riscix*)
1880				vendor=acorn
1881				;;
1882			*-sunos*)
1883				vendor=sun
1884				;;
1885			*-cnk* | *-aix*)
1886				vendor=ibm
1887				;;
1888			*-beos*)
1889				vendor=be
1890				;;
1891			*-hpux*)
1892				vendor=hp
1893				;;
1894			*-mpeix*)
1895				vendor=hp
1896				;;
1897			*-hiux*)
1898				vendor=hitachi
1899				;;
1900			*-unos*)
1901				vendor=crds
1902				;;
1903			*-dgux*)
1904				vendor=dg
1905				;;
1906			*-luna*)
1907				vendor=omron
1908				;;
1909			*-genix*)
1910				vendor=ns
1911				;;
1912			*-clix*)
1913				vendor=intergraph
1914				;;
1915			*-mvs* | *-opened*)
1916				vendor=ibm
1917				;;
1918			*-os400*)
1919				vendor=ibm
1920				;;
1921			s390-* | s390x-*)
1922				vendor=ibm
1923				;;
1924			*-ptx*)
1925				vendor=sequent
1926				;;
1927			*-tpf*)
1928				vendor=ibm
1929				;;
1930			*-vxsim* | *-vxworks* | *-windiss*)
1931				vendor=wrs
1932				;;
1933			*-aux*)
1934				vendor=apple
1935				;;
1936			*-hms*)
1937				vendor=hitachi
1938				;;
1939			*-mpw* | *-macos*)
1940				vendor=apple
1941				;;
1942			*-*mint | *-mint[0-9]* | *-*MiNT | *-MiNT[0-9]*)
1943				vendor=atari
1944				;;
1945			*-vos*)
1946				vendor=stratus
1947				;;
1948		esac
1949		;;
1950esac
1951
1952echo "$cpu-$vendor${kernel:+-$kernel}${os:+-$os}${obj:+-$obj}"
1953exit
1954
1955# Local variables:
1956# eval: (add-hook 'before-save-hook 'time-stamp)
1957# time-stamp-start: "timestamp='"
1958# time-stamp-format: "%:y-%02m-%02d"
1959# time-stamp-end: "'"
1960# End:
1961