view config.sub @ 1790:42745af83b7d

Introduce extra delay before closing unauthenticated sessions To make it harder for attackers, introduce a delay to keep an unauthenticated session open a bit longer, thus blocking a connection slot until after the delay. Without this, while there is a limit on the amount of attempts an attacker can make at the same time (MAX_UNAUTH_PER_IP), the time taken by dropbear to handle one attempt is still short and thus for each of the allowed parallel attempts many attempts can be chained one after the other. The attempt rate is then: "MAX_UNAUTH_PER_IP / <process time of one attempt>". With the delay, this rate becomes: "MAX_UNAUTH_PER_IP / UNAUTH_CLOSE_DELAY".
author Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
date Wed, 15 Feb 2017 13:53:04 +0100
parents b3196c46f780
children b63f1e803f70
line wrap: on
line source

#! /bin/sh
# Configuration validation subroutine script.
#   Copyright 1992-2019 Free Software Foundation, Inc.

timestamp='2019-01-05'

# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <https://www.gnu.org/licenses/>.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that
# program.  This Exception is an additional permission under section 7
# of the GNU General Public License, version 3 ("GPLv3").


# Please send patches to <[email protected]>.
#
# Configuration subroutine to validate and canonicalize a configuration type.
# Supply the specified configuration type as an argument.
# If it is invalid, we print an error message on stderr and exit with code 1.
# Otherwise, we print the canonical config type on stdout and succeed.

# You can get the latest version of this script from:
# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub

# This file is supposed to be the same for all GNU packages
# and recognize all the CPU types, system types and aliases
# that are meaningful with *any* GNU software.
# Each package is responsible for reporting which valid configurations
# it does not support.  The user should be able to distinguish
# a failure to support a valid configuration from a meaningless
# configuration.

# The goal of this file is to map all the various variations of a given
# machine specification into a single specification in the form:
#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
# or in some cases, the newer four-part form:
#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
# It is wrong to echo any other type of specification.

me=`echo "$0" | sed -e 's,.*/,,'`

usage="\
Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS

Canonicalize a configuration name.

Options:
  -h, --help         print this help, then exit
  -t, --time-stamp   print date of last modification, then exit
  -v, --version      print version number, then exit

Report bugs and patches to <[email protected]>."

version="\
GNU config.sub ($timestamp)

Copyright 1992-2019 Free Software Foundation, Inc.

This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."

help="
Try \`$me --help' for more information."

# Parse command line
while test $# -gt 0 ; do
  case $1 in
    --time-stamp | --time* | -t )
       echo "$timestamp" ; exit ;;
    --version | -v )
       echo "$version" ; exit ;;
    --help | --h* | -h )
       echo "$usage"; exit ;;
    -- )     # Stop option processing
       shift; break ;;
    - )	# Use stdin as input.
       break ;;
    -* )
       echo "$me: invalid option $1$help" >&2
       exit 1 ;;

    *local*)
       # First pass through any local machine types.
       echo "$1"
       exit ;;

    * )
       break ;;
  esac
done

case $# in
 0) echo "$me: missing argument$help" >&2
    exit 1;;
 1) ;;
 *) echo "$me: too many arguments$help" >&2
    exit 1;;
esac

# Split fields of configuration type
# shellcheck disable=SC2162
IFS="-" read field1 field2 field3 field4 <<EOF
$1
EOF

# Separate into logical components for further validation
case $1 in
	*-*-*-*-*)
		echo Invalid configuration \`"$1"\': more than four components >&2
		exit 1
		;;
	*-*-*-*)
		basic_machine=$field1-$field2
		os=$field3-$field4
		;;
	*-*-*)
		# Ambiguous whether COMPANY is present, or skipped and KERNEL-OS is two
		# parts
		maybe_os=$field2-$field3
		case $maybe_os in
			nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc \
			| linux-newlib* | linux-musl* | linux-uclibc* | uclinux-uclibc* \
			| uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* \
			| netbsd*-eabi* | kopensolaris*-gnu* | cloudabi*-eabi* \
			| storm-chaos* | os2-emx* | rtmk-nova*)
				basic_machine=$field1
				os=$maybe_os
				;;
			android-linux)
				basic_machine=$field1-unknown
				os=linux-android
				;;
			*)
				basic_machine=$field1-$field2
				os=$field3
				;;
		esac
		;;
	*-*)
		# A lone config we happen to match not fitting any pattern
		case $field1-$field2 in
			decstation-3100)
				basic_machine=mips-dec
				os=
				;;
			*-*)
				# Second component is usually, but not always the OS
				case $field2 in
					# Prevent following clause from handling this valid os
					sun*os*)
						basic_machine=$field1
						os=$field2
						;;
					# Manufacturers
					dec* | mips* | sequent* | encore* | pc533* | sgi* | sony* \
					| att* | 7300* | 3300* | delta* | motorola* | sun[234]* \
					| unicom* | ibm* | next | hp | isi* | apollo | altos* \
					| convergent* | ncr* | news | 32* | 3600* | 3100* \
					| hitachi* | c[123]* | convex* | sun | crds | omron* | dg \
					| ultra | tti* | harris | dolphin | highlevel | gould \
					| cbm | ns | masscomp | apple | axis | knuth | cray \
					| microblaze* | sim | cisco \
					| oki | wec | wrs | winbond)
						basic_machine=$field1-$field2
						os=
						;;
					*)
						basic_machine=$field1
						os=$field2
						;;
				esac
			;;
		esac
		;;
	*)
		# Convert single-component short-hands not valid as part of
		# multi-component configurations.
		case $field1 in
			386bsd)
				basic_machine=i386-pc
				os=bsd
				;;
			a29khif)
				basic_machine=a29k-amd
				os=udi
				;;
			adobe68k)
				basic_machine=m68010-adobe
				os=scout
				;;
			alliant)
				basic_machine=fx80-alliant
				os=
				;;
			altos | altos3068)
				basic_machine=m68k-altos
				os=
				;;
			am29k)
				basic_machine=a29k-none
				os=bsd
				;;
			amdahl)
				basic_machine=580-amdahl
				os=sysv
				;;
			amiga)
				basic_machine=m68k-unknown
				os=
				;;
			amigaos | amigados)
				basic_machine=m68k-unknown
				os=amigaos
				;;
			amigaunix | amix)
				basic_machine=m68k-unknown
				os=sysv4
				;;
			apollo68)
				basic_machine=m68k-apollo
				os=sysv
				;;
			apollo68bsd)
				basic_machine=m68k-apollo
				os=bsd
				;;
			aros)
				basic_machine=i386-pc
				os=aros
				;;
			aux)
				basic_machine=m68k-apple
				os=aux
				;;
			balance)
				basic_machine=ns32k-sequent
				os=dynix
				;;
			blackfin)
				basic_machine=bfin-unknown
				os=linux
				;;
			cegcc)
				basic_machine=arm-unknown
				os=cegcc
				;;
			convex-c1)
				basic_machine=c1-convex
				os=bsd
				;;
			convex-c2)
				basic_machine=c2-convex
				os=bsd
				;;
			convex-c32)
				basic_machine=c32-convex
				os=bsd
				;;
			convex-c34)
				basic_machine=c34-convex
				os=bsd
				;;
			convex-c38)
				basic_machine=c38-convex
				os=bsd
				;;
			cray)
				basic_machine=j90-cray
				os=unicos
				;;
			crds | unos)
				basic_machine=m68k-crds
				os=
				;;
			da30)
				basic_machine=m68k-da30
				os=
				;;
			decstation | pmax | pmin | dec3100 | decstatn)
				basic_machine=mips-dec
				os=
				;;
			delta88)
				basic_machine=m88k-motorola
				os=sysv3
				;;
			dicos)
				basic_machine=i686-pc
				os=dicos
				;;
			djgpp)
				basic_machine=i586-pc
				os=msdosdjgpp
				;;
			ebmon29k)
				basic_machine=a29k-amd
				os=ebmon
				;;
			es1800 | OSE68k | ose68k | ose | OSE)
				basic_machine=m68k-ericsson
				os=ose
				;;
			gmicro)
				basic_machine=tron-gmicro
				os=sysv
				;;
			go32)
				basic_machine=i386-pc
				os=go32
				;;
			h8300hms)
				basic_machine=h8300-hitachi
				os=hms
				;;
			h8300xray)
				basic_machine=h8300-hitachi
				os=xray
				;;
			h8500hms)
				basic_machine=h8500-hitachi
				os=hms
				;;
			harris)
				basic_machine=m88k-harris
				os=sysv3
				;;
			hp300)
				basic_machine=m68k-hp
				;;
			hp300bsd)
				basic_machine=m68k-hp
				os=bsd
				;;
			hp300hpux)
				basic_machine=m68k-hp
				os=hpux
				;;
			hppaosf)
				basic_machine=hppa1.1-hp
				os=osf
				;;
			hppro)
				basic_machine=hppa1.1-hp
				os=proelf
				;;
			i386mach)
				basic_machine=i386-mach
				os=mach
				;;
			vsta)
				basic_machine=i386-pc
				os=vsta
				;;
			isi68 | isi)
				basic_machine=m68k-isi
				os=sysv
				;;
			m68knommu)
				basic_machine=m68k-unknown
				os=linux
				;;
			magnum | m3230)
				basic_machine=mips-mips
				os=sysv
				;;
			merlin)
				basic_machine=ns32k-utek
				os=sysv
				;;
			mingw64)
				basic_machine=x86_64-pc
				os=mingw64
				;;
			mingw32)
				basic_machine=i686-pc
				os=mingw32
				;;
			mingw32ce)
				basic_machine=arm-unknown
				os=mingw32ce
				;;
			monitor)
				basic_machine=m68k-rom68k
				os=coff
				;;
			morphos)
				basic_machine=powerpc-unknown
				os=morphos
				;;
			moxiebox)
				basic_machine=moxie-unknown
				os=moxiebox
				;;
			msdos)
				basic_machine=i386-pc
				os=msdos
				;;
			msys)
				basic_machine=i686-pc
				os=msys
				;;
			mvs)
				basic_machine=i370-ibm
				os=mvs
				;;
			nacl)
				basic_machine=le32-unknown
				os=nacl
				;;
			ncr3000)
				basic_machine=i486-ncr
				os=sysv4
				;;
			netbsd386)
				basic_machine=i386-pc
				os=netbsd
				;;
			netwinder)
				basic_machine=armv4l-rebel
				os=linux
				;;
			news | news700 | news800 | news900)
				basic_machine=m68k-sony
				os=newsos
				;;
			news1000)
				basic_machine=m68030-sony
				os=newsos
				;;
			necv70)
				basic_machine=v70-nec
				os=sysv
				;;
			nh3000)
				basic_machine=m68k-harris
				os=cxux
				;;
			nh[45]000)
				basic_machine=m88k-harris
				os=cxux
				;;
			nindy960)
				basic_machine=i960-intel
				os=nindy
				;;
			mon960)
				basic_machine=i960-intel
				os=mon960
				;;
			nonstopux)
				basic_machine=mips-compaq
				os=nonstopux
				;;
			os400)
				basic_machine=powerpc-ibm
				os=os400
				;;
			OSE68000 | ose68000)
				basic_machine=m68000-ericsson
				os=ose
				;;
			os68k)
				basic_machine=m68k-none
				os=os68k
				;;
			paragon)
				basic_machine=i860-intel
				os=osf
				;;
			parisc)
				basic_machine=hppa-unknown
				os=linux
				;;
			pw32)
				basic_machine=i586-unknown
				os=pw32
				;;
			rdos | rdos64)
				basic_machine=x86_64-pc
				os=rdos
				;;
			rdos32)
				basic_machine=i386-pc
				os=rdos
				;;
			rom68k)
				basic_machine=m68k-rom68k
				os=coff
				;;
			sa29200)
				basic_machine=a29k-amd
				os=udi
				;;
			sei)
				basic_machine=mips-sei
				os=seiux
				;;
			sequent)
				basic_machine=i386-sequent
				os=
				;;
			sps7)
				basic_machine=m68k-bull
				os=sysv2
				;;
			st2000)
				basic_machine=m68k-tandem
				os=
				;;
			stratus)
				basic_machine=i860-stratus
				os=sysv4
				;;
			sun2)
				basic_machine=m68000-sun
				os=
				;;
			sun2os3)
				basic_machine=m68000-sun
				os=sunos3
				;;
			sun2os4)
				basic_machine=m68000-sun
				os=sunos4
				;;
			sun3)
				basic_machine=m68k-sun
				os=
				;;
			sun3os3)
				basic_machine=m68k-sun
				os=sunos3
				;;
			sun3os4)
				basic_machine=m68k-sun
				os=sunos4
				;;
			sun4)
				basic_machine=sparc-sun
				os=
				;;
			sun4os3)
				basic_machine=sparc-sun
				os=sunos3
				;;
			sun4os4)
				basic_machine=sparc-sun
				os=sunos4
				;;
			sun4sol2)
				basic_machine=sparc-sun
				os=solaris2
				;;
			sun386 | sun386i | roadrunner)
				basic_machine=i386-sun
				os=
				;;
			sv1)
				basic_machine=sv1-cray
				os=unicos
				;;
			symmetry)
				basic_machine=i386-sequent
				os=dynix
				;;
			t3e)
				basic_machine=alphaev5-cray
				os=unicos
				;;
			t90)
				basic_machine=t90-cray
				os=unicos
				;;
			toad1)
				basic_machine=pdp10-xkl
				os=tops20
				;;
			tpf)
				basic_machine=s390x-ibm
				os=tpf
				;;
			udi29k)
				basic_machine=a29k-amd
				os=udi
				;;
			ultra3)
				basic_machine=a29k-nyu
				os=sym1
				;;
			v810 | necv810)
				basic_machine=v810-nec
				os=none
				;;
			vaxv)
				basic_machine=vax-dec
				os=sysv
				;;
			vms)
				basic_machine=vax-dec
				os=vms
				;;
			vxworks960)
				basic_machine=i960-wrs
				os=vxworks
				;;
			vxworks68)
				basic_machine=m68k-wrs
				os=vxworks
				;;
			vxworks29k)
				basic_machine=a29k-wrs
				os=vxworks
				;;
			xbox)
				basic_machine=i686-pc
				os=mingw32
				;;
			ymp)
				basic_machine=ymp-cray
				os=unicos
				;;
			*)
				basic_machine=$1
				os=
				;;
		esac
		;;
esac

# Decode 1-component or ad-hoc basic machines
case $basic_machine in
	# Here we handle the default manufacturer of certain CPU types.  It is in
	# some cases the only manufacturer, in others, it is the most popular.
	w89k)
		cpu=hppa1.1
		vendor=winbond
		;;
	op50n)
		cpu=hppa1.1
		vendor=oki
		;;
	op60c)
		cpu=hppa1.1
		vendor=oki
		;;
	ibm*)
		cpu=i370
		vendor=ibm
		;;
	orion105)
		cpu=clipper
		vendor=highlevel
		;;
	mac | mpw | mac-mpw)
		cpu=m68k
		vendor=apple
		;;
	pmac | pmac-mpw)
		cpu=powerpc
		vendor=apple
		;;

	# Recognize the various machine names and aliases which stand
	# for a CPU type and a company and sometimes even an OS.
	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
		cpu=m68000
		vendor=att
		;;
	3b*)
		cpu=we32k
		vendor=att
		;;
	bluegene*)
		cpu=powerpc
		vendor=ibm
		os=cnk
		;;
	decsystem10* | dec10*)
		cpu=pdp10
		vendor=dec
		os=tops10
		;;
	decsystem20* | dec20*)
		cpu=pdp10
		vendor=dec
		os=tops20
		;;
	delta | 3300 | motorola-3300 | motorola-delta \
	      | 3300-motorola | delta-motorola)
		cpu=m68k
		vendor=motorola
		;;
	dpx2*)
		cpu=m68k
		vendor=bull
		os=sysv3
		;;
	encore | umax | mmax)
		cpu=ns32k
		vendor=encore
		;;
	elxsi)
		cpu=elxsi
		vendor=elxsi
		os=${os:-bsd}
		;;
	fx2800)
		cpu=i860
		vendor=alliant
		;;
	genix)
		cpu=ns32k
		vendor=ns
		;;
	h3050r* | hiux*)
		cpu=hppa1.1
		vendor=hitachi
		os=hiuxwe2
		;;
	hp3k9[0-9][0-9] | hp9[0-9][0-9])
		cpu=hppa1.0
		vendor=hp
		;;
	hp9k2[0-9][0-9] | hp9k31[0-9])
		cpu=m68000
		vendor=hp
		;;
	hp9k3[2-9][0-9])
		cpu=m68k
		vendor=hp
		;;
	hp9k6[0-9][0-9] | hp6[0-9][0-9])
		cpu=hppa1.0
		vendor=hp
		;;
	hp9k7[0-79][0-9] | hp7[0-79][0-9])
		cpu=hppa1.1
		vendor=hp
		;;
	hp9k78[0-9] | hp78[0-9])
		# FIXME: really hppa2.0-hp
		cpu=hppa1.1
		vendor=hp
		;;
	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
		# FIXME: really hppa2.0-hp
		cpu=hppa1.1
		vendor=hp
		;;
	hp9k8[0-9][13679] | hp8[0-9][13679])
		cpu=hppa1.1
		vendor=hp
		;;
	hp9k8[0-9][0-9] | hp8[0-9][0-9])
		cpu=hppa1.0
		vendor=hp
		;;
	i*86v32)
		cpu=`echo "$1" | sed -e 's/86.*/86/'`
		vendor=pc
		os=sysv32
		;;
	i*86v4*)
		cpu=`echo "$1" | sed -e 's/86.*/86/'`
		vendor=pc
		os=sysv4
		;;
	i*86v)
		cpu=`echo "$1" | sed -e 's/86.*/86/'`
		vendor=pc
		os=sysv
		;;
	i*86sol2)
		cpu=`echo "$1" | sed -e 's/86.*/86/'`
		vendor=pc
		os=solaris2
		;;
	j90 | j90-cray)
		cpu=j90
		vendor=cray
		os=${os:-unicos}
		;;
	iris | iris4d)
		cpu=mips
		vendor=sgi
		case $os in
		    irix*)
			;;
		    *)
			os=irix4
			;;
		esac
		;;
	miniframe)
		cpu=m68000
		vendor=convergent
		;;
	*mint | mint[0-9]* | *MiNT | *MiNT[0-9]*)
		cpu=m68k
		vendor=atari
		os=mint
		;;
	news-3600 | risc-news)
		cpu=mips
		vendor=sony
		os=newsos
		;;
	next | m*-next)
		cpu=m68k
		vendor=next
		case $os in
		    nextstep* )
			;;
		    ns2*)
		      os=nextstep2
			;;
		    *)
		      os=nextstep3
			;;
		esac
		;;
	np1)
		cpu=np1
		vendor=gould
		;;
	op50n-* | op60c-*)
		cpu=hppa1.1
		vendor=oki
		os=proelf
		;;
	pa-hitachi)
		cpu=hppa1.1
		vendor=hitachi
		os=hiuxwe2
		;;
	pbd)
		cpu=sparc
		vendor=tti
		;;
	pbb)
		cpu=m68k
		vendor=tti
		;;
	pc532)
		cpu=ns32k
		vendor=pc532
		;;
	pn)
		cpu=pn
		vendor=gould
		;;
	power)
		cpu=power
		vendor=ibm
		;;
	ps2)
		cpu=i386
		vendor=ibm
		;;
	rm[46]00)
		cpu=mips
		vendor=siemens
		;;
	rtpc | rtpc-*)
		cpu=romp
		vendor=ibm
		;;
	sde)
		cpu=mipsisa32
		vendor=sde
		os=${os:-elf}
		;;
	simso-wrs)
		cpu=sparclite
		vendor=wrs
		os=vxworks
		;;
	tower | tower-32)
		cpu=m68k
		vendor=ncr
		;;
	vpp*|vx|vx-*)
		cpu=f301
		vendor=fujitsu
		;;
	w65)
		cpu=w65
		vendor=wdc
		;;
	w89k-*)
		cpu=hppa1.1
		vendor=winbond
		os=proelf
		;;
	none)
		cpu=none
		vendor=none
		;;
	leon|leon[3-9])
		cpu=sparc
		vendor=$basic_machine
		;;
	leon-*|leon[3-9]-*)
		cpu=sparc
		vendor=`echo "$basic_machine" | sed 's/-.*//'`
		;;

	*-*)
		# shellcheck disable=SC2162
		IFS="-" read cpu vendor <<EOF
$basic_machine
EOF
		;;
	# We use `pc' rather than `unknown'
	# because (1) that's what they normally are, and
	# (2) the word "unknown" tends to confuse beginning users.
	i*86 | x86_64)
		cpu=$basic_machine
		vendor=pc
		;;
	# These rules are duplicated from below for sake of the special case above;
	# i.e. things that normalized to x86 arches should also default to "pc"
	pc98)
		cpu=i386
		vendor=pc
		;;
	x64 | amd64)
		cpu=x86_64
		vendor=pc
		;;
	# Recognize the basic CPU types without company name.
	*)
		cpu=$basic_machine
		vendor=unknown
		;;
esac

unset -v basic_machine

# Decode basic machines in the full and proper CPU-Company form.
case $cpu-$vendor in
	# Here we handle the default manufacturer of certain CPU types in canonical form. It is in
	# some cases the only manufacturer, in others, it is the most popular.
	craynv-unknown)
		vendor=cray
		os=${os:-unicosmp}
		;;
	c90-unknown | c90-cray)
		vendor=cray
		os=${os:-unicos}
		;;
	fx80-unknown)
		vendor=alliant
		;;
	romp-unknown)
		vendor=ibm
		;;
	mmix-unknown)
		vendor=knuth
		;;
	microblaze-unknown | microblazeel-unknown)
		vendor=xilinx
		;;
	rs6000-unknown)
		vendor=ibm
		;;
	vax-unknown)
		vendor=dec
		;;
	pdp11-unknown)
		vendor=dec
		;;
	we32k-unknown)
		vendor=att
		;;
	cydra-unknown)
		vendor=cydrome
		;;
	i370-ibm*)
		vendor=ibm
		;;
	orion-unknown)
		vendor=highlevel
		;;
	xps-unknown | xps100-unknown)
		cpu=xps100
		vendor=honeywell
		;;

	# Here we normalize CPU types with a missing or matching vendor
	dpx20-unknown | dpx20-bull)
		cpu=rs6000
		vendor=bull
		os=${os:-bosx}
		;;

	# Here we normalize CPU types irrespective of the vendor
	amd64-*)
		cpu=x86_64
		;;
	blackfin-*)
		cpu=bfin
		os=linux
		;;
	c54x-*)
		cpu=tic54x
		;;
	c55x-*)
		cpu=tic55x
		;;
	c6x-*)
		cpu=tic6x
		;;
	e500v[12]-*)
		cpu=powerpc
		os=$os"spe"
		;;
	mips3*-*)
		cpu=mips64
		;;
	ms1-*)
		cpu=mt
		;;
	m68knommu-*)
		cpu=m68k
		os=linux
		;;
	m9s12z-* | m68hcs12z-* | hcs12z-* | s12z-*)
		cpu=s12z
		;;
	openrisc-*)
		cpu=or32
		;;
	parisc-*)
		cpu=hppa
		os=linux
		;;
	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
		cpu=i586
		;;
	pentiumpro-* | p6-* | 6x86-* | athlon-* | athalon_*-*)
		cpu=i686
		;;
	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
		cpu=i686
		;;
	pentium4-*)
		cpu=i786
		;;
	pc98-*)
		cpu=i386
		;;
	ppc-* | ppcbe-*)
		cpu=powerpc
		;;
	ppcle-* | powerpclittle-*)
		cpu=powerpcle
		;;
	ppc64-*)
		cpu=powerpc64
		;;
	ppc64le-* | powerpc64little-*)
		cpu=powerpc64le
		;;
	sb1-*)
		cpu=mipsisa64sb1
		;;
	sb1el-*)
		cpu=mipsisa64sb1el
		;;
	sh5e[lb]-*)
		cpu=`echo "$cpu" | sed 's/^\(sh.\)e\(.\)$/\1\2e/'`
		;;
	spur-*)
		cpu=spur
		;;
	strongarm-* | thumb-*)
		cpu=arm
		;;
	tx39-*)
		cpu=mipstx39
		;;
	tx39el-*)
		cpu=mipstx39el
		;;
	x64-*)
		cpu=x86_64
		;;
	xscale-* | xscalee[bl]-*)
		cpu=`echo "$cpu" | sed 's/^xscale/arm/'`
		;;

	# Recognize the canonical CPU Types that limit and/or modify the
	# company names they are paired with.
	cr16-*)
		os=${os:-elf}
		;;
	crisv32-* | etraxfs*-*)
		cpu=crisv32
		vendor=axis
		;;
	cris-* | etrax*-*)
		cpu=cris
		vendor=axis
		;;
	crx-*)
		os=${os:-elf}
		;;
	neo-tandem)
		cpu=neo
		vendor=tandem
		;;
	nse-tandem)
		cpu=nse
		vendor=tandem
		;;
	nsr-tandem)
		cpu=nsr
		vendor=tandem
		;;
	nsv-tandem)
		cpu=nsv
		vendor=tandem
		;;
	nsx-tandem)
		cpu=nsx
		vendor=tandem
		;;
	s390-*)
		cpu=s390
		vendor=ibm
		;;
	s390x-*)
		cpu=s390x
		vendor=ibm
		;;
	tile*-*)
		os=${os:-linux-gnu}
		;;

	*)
		# Recognize the canonical CPU types that are allowed with any
		# company name.
		case $cpu in
			1750a | 580 \
			| a29k \
			| aarch64 | aarch64_be \
			| abacus \
			| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] \
			| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] \
			| alphapca5[67] | alpha64pca5[67] \
			| am33_2.0 \
			| amdgcn \
			| arc | arceb \
			| arm  | arm[lb]e | arme[lb] | armv* \
			| avr | avr32 \
			| asmjs \
			| ba \
			| be32 | be64 \
			| bfin | bs2000 \
			| c[123]* | c30 | [cjt]90 | c4x \
			| c8051 | clipper | craynv | csky | cydra \
			| d10v | d30v | dlx | dsp16xx \
			| e2k | elxsi | epiphany \
			| f30[01] | f700 | fido | fr30 | frv | ft32 | fx80 \
			| h8300 | h8500 \
			| hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
			| hexagon \
			| i370 | i*86 | i860 | i960 | ia16 | ia64 \
			| ip2k | iq2000 \
			| k1om \
			| le32 | le64 \
			| lm32 \
			| m32c | m32r | m32rle \
			| m5200 | m68000 | m680[012346]0 | m68360 | m683?2 | m68k \
			| m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x \
			| m88110 | m88k | maxq | mb | mcore | mep | metag \
			| microblaze | microblazeel \
			| mips | mipsbe | mipseb | mipsel | mipsle \
			| mips16 \
			| mips64 | mips64eb | mips64el \
			| mips64octeon | mips64octeonel \
			| mips64orion | mips64orionel \
			| mips64r5900 | mips64r5900el \
			| mips64vr | mips64vrel \
			| mips64vr4100 | mips64vr4100el \
			| mips64vr4300 | mips64vr4300el \
			| mips64vr5000 | mips64vr5000el \
			| mips64vr5900 | mips64vr5900el \
			| mipsisa32 | mipsisa32el \
			| mipsisa32r2 | mipsisa32r2el \
			| mipsisa32r6 | mipsisa32r6el \
			| mipsisa64 | mipsisa64el \
			| mipsisa64r2 | mipsisa64r2el \
			| mipsisa64r6 | mipsisa64r6el \
			| mipsisa64sb1 | mipsisa64sb1el \
			| mipsisa64sr71k | mipsisa64sr71kel \
			| mipsr5900 | mipsr5900el \
			| mipstx39 | mipstx39el \
			| mmix \
			| mn10200 | mn10300 \
			| moxie \
			| mt \
			| msp430 \
			| nds32 | nds32le | nds32be \
			| nfp \
			| nios | nios2 | nios2eb | nios2el \
			| none | np1 | ns16k | ns32k | nvptx \
			| open8 \
			| or1k* \
			| or32 \
			| orion \
			| picochip \
			| pdp10 | pdp11 | pj | pjl | pn | power \
			| powerpc | powerpc64 | powerpc64le | powerpcle | powerpcspe \
			| pru \
			| pyramid \
			| riscv | riscv32 | riscv64 \
			| rl78 | romp | rs6000 | rx \
			| score \
			| sh | shl \
			| sh[1234] | sh[24]a | sh[24]ae[lb] | sh[23]e | she[lb] | sh[lb]e \
			| sh[1234]e[lb] |  sh[12345][lb]e | sh[23]ele | sh64 | sh64le \
			| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet \
			| sparclite \
			| sparcv8 | sparcv9 | sparcv9b | sparcv9v | sv1 | sx* \
			| spu \
			| tahoe \
			| tic30 | tic4x | tic54x | tic55x | tic6x | tic80 \
			| tron \
			| ubicom32 \
			| v70 | v850 | v850e | v850e1 | v850es | v850e2 | v850e2v3 \
			| vax \
			| visium \
			| w65 | wasm32 \
			| we32k \
			| x86 | x86_64 | xc16x | xgate | xps100 \
			| xstormy16 | xtensa* \
			| ymp \
			| z8k | z80)
				;;

			*)
				echo Invalid configuration \`"$1"\': machine \`"$cpu-$vendor"\' not recognized 1>&2
				exit 1
				;;
		esac
		;;
esac

# Here we canonicalize certain aliases for manufacturers.
case $vendor in
	digital*)
		vendor=dec
		;;
	commodore*)
		vendor=cbm
		;;
	*)
		;;
esac

# Decode manufacturer-specific aliases for certain operating systems.

if [ x$os != x ]
then
case $os in
	# First match some system type aliases that might get confused
	# with valid system types.
	# solaris* is a basic system type, with this one exception.
	auroraux)
		os=auroraux
		;;
	bluegene*)
		os=cnk
		;;
	solaris1 | solaris1.*)
		os=`echo $os | sed -e 's|solaris1|sunos4|'`
		;;
	solaris)
		os=solaris2
		;;
	unixware*)
		os=sysv4.2uw
		;;
	gnu/linux*)
		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
		;;
	# es1800 is here to avoid being matched by es* (a different OS)
	es1800*)
		os=ose
		;;
	# Some version numbers need modification
	chorusos*)
		os=chorusos
		;;
	isc)
		os=isc2.2
		;;
	sco6)
		os=sco5v6
		;;
	sco5)
		os=sco3.2v5
		;;
	sco4)
		os=sco3.2v4
		;;
	sco3.2.[4-9]*)
		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
		;;
	sco3.2v[4-9]* | sco5v6*)
		# Don't forget version if it is 3.2v4 or newer.
		;;
	scout)
		# Don't match below
		;;
	sco*)
		os=sco3.2v2
		;;
	psos*)
		os=psos
		;;
	# Now accept the basic system types.
	# The portable systems comes first.
	# Each alternative MUST end in a * to match a version number.
	# sysv* is not here because it comes later, after sysvr4.
	gnu* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
	     | *vms* | esix* | aix* | cnk* | sunos | sunos[34]*\
	     | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
	     | sym* | kopensolaris* | plan9* \
	     | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \
	     | aos* | aros* | cloudabi* | sortix* \
	     | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \
	     | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \
	     | knetbsd* | mirbsd* | netbsd* \
	     | bitrig* | openbsd* | solidbsd* | libertybsd* \
	     | ekkobsd* | kfreebsd* | freebsd* | riscix* | lynxos* \
	     | bosx* | nextstep* | cxux* | aout* | elf* | oabi* \
	     | ptx* | coff* | ecoff* | winnt* | domain* | vsta* \
	     | udi* | eabi* | lites* | ieee* | go32* | aux* | hcos* \
	     | chorusrdb* | cegcc* | glidix* \
	     | cygwin* | msys* | pe* | moss* | proelf* | rtems* \
	     | midipix* | mingw32* | mingw64* | linux-gnu* | linux-android* \
	     | linux-newlib* | linux-musl* | linux-uclibc* \
	     | uxpv* | beos* | mpeix* | udk* | moxiebox* \
	     | interix* | uwin* | mks* | rhapsody* | darwin* \
	     | openstep* | oskit* | conix* | pw32* | nonstopux* \
	     | storm-chaos* | tops10* | tenex* | tops20* | its* \
	     | os2* | vos* | palmos* | uclinux* | nucleus* \
	     | morphos* | superux* | rtmk* | windiss* \
	     | powermax* | dnix* | nx6 | nx7 | sei* | dragonfly* \
	     | skyos* | haiku* | rdos* | toppers* | drops* | es* \
	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
	     | midnightbsd* | amdhsa* | unleashed* | emscripten*)
	# Remember, each alternative MUST END IN *, to match a version number.
		;;
	qnx*)
		case $cpu in
		    x86 | i*86)
			;;
		    *)
			os=nto-$os
			;;
		esac
		;;
	hiux*)
		os=hiuxwe2
		;;
	nto-qnx*)
		;;
	nto*)
		os=`echo $os | sed -e 's|nto|nto-qnx|'`
		;;
	sim | xray | os68k* | v88r* \
	    | windows* | osx | abug | netware* | os9* \
	    | macos* | mpw* | magic* | mmixware* | mon960* | lnews*)
		;;
	linux-dietlibc)
		os=linux-dietlibc
		;;
	linux*)
		os=`echo $os | sed -e 's|linux|linux-gnu|'`
		;;
	lynx*178)
		os=lynxos178
		;;
	lynx*5)
		os=lynxos5
		;;
	lynx*)
		os=lynxos
		;;
	mac*)
		os=`echo "$os" | sed -e 's|mac|macos|'`
		;;
	opened*)
		os=openedition
		;;
	os400*)
		os=os400
		;;
	sunos5*)
		os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
		;;
	sunos6*)
		os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
		;;
	wince*)
		os=wince
		;;
	utek*)
		os=bsd
		;;
	dynix*)
		os=bsd
		;;
	acis*)
		os=aos
		;;
	atheos*)
		os=atheos
		;;
	syllable*)
		os=syllable
		;;
	386bsd)
		os=bsd
		;;
	ctix* | uts*)
		os=sysv
		;;
	nova*)
		os=rtmk-nova
		;;
	ns2)
		os=nextstep2
		;;
	nsk*)
		os=nsk
		;;
	# Preserve the version number of sinix5.
	sinix5.*)
		os=`echo $os | sed -e 's|sinix|sysv|'`
		;;
	sinix*)
		os=sysv4
		;;
	tpf*)
		os=tpf
		;;
	triton*)
		os=sysv3
		;;
	oss*)
		os=sysv3
		;;
	svr4*)
		os=sysv4
		;;
	svr3)
		os=sysv3
		;;
	sysvr4)
		os=sysv4
		;;
	# This must come after sysvr4.
	sysv*)
		;;
	ose*)
		os=ose
		;;
	*mint | mint[0-9]* | *MiNT | MiNT[0-9]*)
		os=mint
		;;
	zvmoe)
		os=zvmoe
		;;
	dicos*)
		os=dicos
		;;
	pikeos*)
		# Until real need of OS specific support for
		# particular features comes up, bare metal
		# configurations are quite functional.
		case $cpu in
		    arm*)
			os=eabi
			;;
		    *)
			os=elf
			;;
		esac
		;;
	nacl*)
		;;
	ios)
		;;
	none)
		;;
	*-eabi)
		;;
	*)
		echo Invalid configuration \`"$1"\': system \`"$os"\' not recognized 1>&2
		exit 1
		;;
esac
else

# Here we handle the default operating systems that come with various machines.
# The value should be what the vendor currently ships out the door with their
# machine or put another way, the most popular os provided with the machine.

# Note that if you're going to try to match "-MANUFACTURER" here (say,
# "-sun"), then you have to tell the case statement up towards the top
# that MANUFACTURER isn't an operating system.  Otherwise, code above
# will signal an error saying that MANUFACTURER isn't an operating
# system, and we'll never get to this point.

case $cpu-$vendor in
	score-*)
		os=elf
		;;
	spu-*)
		os=elf
		;;
	*-acorn)
		os=riscix1.2
		;;
	arm*-rebel)
		os=linux
		;;
	arm*-semi)
		os=aout
		;;
	c4x-* | tic4x-*)
		os=coff
		;;
	c8051-*)
		os=elf
		;;
	clipper-intergraph)
		os=clix
		;;
	hexagon-*)
		os=elf
		;;
	tic54x-*)
		os=coff
		;;
	tic55x-*)
		os=coff
		;;
	tic6x-*)
		os=coff
		;;
	# This must come before the *-dec entry.
	pdp10-*)
		os=tops20
		;;
	pdp11-*)
		os=none
		;;
	*-dec | vax-*)
		os=ultrix4.2
		;;
	m68*-apollo)
		os=domain
		;;
	i386-sun)
		os=sunos4.0.2
		;;
	m68000-sun)
		os=sunos3
		;;
	m68*-cisco)
		os=aout
		;;
	mep-*)
		os=elf
		;;
	mips*-cisco)
		os=elf
		;;
	mips*-*)
		os=elf
		;;
	or32-*)
		os=coff
		;;
	*-tti)	# must be before sparc entry or we get the wrong os.
		os=sysv3
		;;
	sparc-* | *-sun)
		os=sunos4.1.1
		;;
	pru-*)
		os=elf
		;;
	*-be)
		os=beos
		;;
	*-ibm)
		os=aix
		;;
	*-knuth)
		os=mmixware
		;;
	*-wec)
		os=proelf
		;;
	*-winbond)
		os=proelf
		;;
	*-oki)
		os=proelf
		;;
	*-hp)
		os=hpux
		;;
	*-hitachi)
		os=hiux
		;;
	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
		os=sysv
		;;
	*-cbm)
		os=amigaos
		;;
	*-dg)
		os=dgux
		;;
	*-dolphin)
		os=sysv3
		;;
	m68k-ccur)
		os=rtu
		;;
	m88k-omron*)
		os=luna
		;;
	*-next)
		os=nextstep
		;;
	*-sequent)
		os=ptx
		;;
	*-crds)
		os=unos
		;;
	*-ns)
		os=genix
		;;
	i370-*)
		os=mvs
		;;
	*-gould)
		os=sysv
		;;
	*-highlevel)
		os=bsd
		;;
	*-encore)
		os=bsd
		;;
	*-sgi)
		os=irix
		;;
	*-siemens)
		os=sysv4
		;;
	*-masscomp)
		os=rtu
		;;
	f30[01]-fujitsu | f700-fujitsu)
		os=uxpv
		;;
	*-rom68k)
		os=coff
		;;
	*-*bug)
		os=coff
		;;
	*-apple)
		os=macos
		;;
	*-atari*)
		os=mint
		;;
	*-wrs)
		os=vxworks
		;;
	*)
		os=none
		;;
esac
fi

# Here we handle the case where we know the os, and the CPU type, but not the
# manufacturer.  We pick the logical manufacturer.
case $vendor in
	unknown)
		case $os in
			riscix*)
				vendor=acorn
				;;
			sunos*)
				vendor=sun
				;;
			cnk*|-aix*)
				vendor=ibm
				;;
			beos*)
				vendor=be
				;;
			hpux*)
				vendor=hp
				;;
			mpeix*)
				vendor=hp
				;;
			hiux*)
				vendor=hitachi
				;;
			unos*)
				vendor=crds
				;;
			dgux*)
				vendor=dg
				;;
			luna*)
				vendor=omron
				;;
			genix*)
				vendor=ns
				;;
			clix*)
				vendor=intergraph
				;;
			mvs* | opened*)
				vendor=ibm
				;;
			os400*)
				vendor=ibm
				;;
			ptx*)
				vendor=sequent
				;;
			tpf*)
				vendor=ibm
				;;
			vxsim* | vxworks* | windiss*)
				vendor=wrs
				;;
			aux*)
				vendor=apple
				;;
			hms*)
				vendor=hitachi
				;;
			mpw* | macos*)
				vendor=apple
				;;
			*mint | mint[0-9]* | *MiNT | MiNT[0-9]*)
				vendor=atari
				;;
			vos*)
				vendor=stratus
				;;
		esac
		;;
esac

echo "$cpu-$vendor-$os"
exit

# Local variables:
# eval: (add-hook 'before-save-hook 'time-stamp)
# time-stamp-start: "timestamp='"
# time-stamp-format: "%:y-%02m-%02d"
# time-stamp-end: "'"
# End: