contrib/bmake/os.sh

   1 :
   2 # NAME:
   3 #       os.sh - operating system specifics
   4 #
   5 # DESCRIPTION:
   6 #       This file is included at the start of processing. Its role is
   7 #       to set the variables OS, OSREL, OSMAJOR, MACHINE and MACHINE_ARCH to
   8 #       reflect the current system.
   9 #
  10 #       It also sets variables such as MAILER, LOCAL_FS, PS_AXC to hide
  11 #       certain aspects of different UNIX flavours.
  12 #
  13 # SEE ALSO:
  14 #       site.sh,funcs.sh
  15 #
  16 # AUTHOR:
  17 #       Simon J. Gerraty <sjg@crufty.net>
  18
  19 # RCSid:
  20 #       $Id: os.sh,v 1.52 2016/06/17 05:15:14 sjg Exp $
  21 #
  22 #       @(#) Copyright (c) 1994 Simon J. Gerraty
  23 #
  24 #       This file is provided in the hope that it will
  25 #       be of use.  There is absolutely NO WARRANTY.
  26 #       Permission to copy, redistribute or otherwise
  27 #       use this file is hereby granted provided that
  28 #       the above copyright notice and this notice are
  29 #       left intact.
  30 #
  31 #       Please send copies of changes and bug-fixes to:
  32 #       sjg@crufty.net
  33 #
  34
  35 # this lets us skip sourcing it again
  36 _OS_SH=:
  37
  38 OS=`uname`
  39 OSREL=`uname -r`
  40 OSMAJOR=`IFS=.; set $OSREL; echo $1`
  41 MACHINE=`uname -m`
  42 MACHINE_ARCH=`uname -p 2>/dev/null || echo $MACHINE`
  43
  44 # there is at least one case of `uname -p` outputting
  45 # a bunch of usless drivel
  46 case "$MACHINE_ARCH" in
  47 unknown|*[!A-Za-z0-9_-]*) MACHINE_ARCH="$MACHINE";;
  48 esac
  49
  50 # we need this here, and it is not always available...
  51 Which() {
  52         case "$1" in
  53         -*) t=$1; shift;;
  54         *) t=-x;;
  55         esac
  56         case "$1" in
  57         /*)     test $t $1 && echo $1;;
  58         *)
  59                 # some shells cannot correctly handle `IFS`
  60                 # in conjunction with the for loop.
  61                 _dirs=`IFS=:; echo ${2:-$PATH}`
  62                 for d in $_dirs
  63                 do
  64                         test $t $d/$1 && { echo $d/$1; break; }
  65                 done
  66                 ;;
  67         esac
  68 }
  69
  70 # tr is insanely non-portable wrt char classes, so we need to
  71 # spell out the alphabet. sed y/// would work too.
  72 toUpper() {
  73         ${TR:-tr} abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
  74 }
  75
  76 toLower() {
  77         ${TR:-tr} ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
  78 }
  79
  80 K=
  81 case $OS in
  82 AIX)    # everyone loves to be different...
  83         OSMAJOR=`uname -v`
  84         OSREL="$OSMAJOR.`uname -r`"
  85         LOCAL_FS=jfs
  86         PS_AXC=-e
  87         SHARE_ARCH=$OS/$OSMAJOR.X
  88         ;;
  89 SunOS)
  90         CHOWN=`Which chown /usr/etc:/usr/bin`
  91         export CHOWN
  92
  93         # Great! Solaris keeps moving arch(1)
  94         # should just bite the bullet and use uname -p
  95         arch=`Which arch /usr/bin:/usr/ucb`
  96
  97         MAILER=/usr/ucb/Mail
  98         LOCAL_FS=4.2
  99
 100         case "$OSREL" in
 101         4.0*)
 102                 # uname -m just says sun which could be anything
 103                 # so use arch(1).
 104                 MACHINE_ARCH=`arch`
 105                 MACHINE=$MACHINE_ARCH
 106                 ;;
 107         4*)
 108                 MACHINE_ARCH=`arch`
 109                 ;;
 110         5*)
 111                 K=-k
 112                 LOCAL_FS=ufs
 113                 MAILER=mailx
 114                 PS_AXC=-e
 115                 # can you believe that ln on Solaris defaults to
 116                 # overwriting an existing file!!!!! We want one that works!
 117                 test -x /usr/xpg4/bin/ln && LN=${LN:-/usr/xpg4/bin/ln}
 118                 # wonderful, 5.8's tr again require's []'s
 119                 # but /usr/xpg4/bin/tr causes problems if LC_COLLATE is set!
 120                 # use toUpper/toLower instead.
 121                 ;;
 122         esac
 123         case "$OS/$MACHINE_ARCH" in
 124         *sun386)        SHARE_ARCH=$MACHINE_ARCH;;
 125         esac
 126         ;;
 127 *BSD)
 128         K=-k
 129         MAILER=/usr/bin/Mail
 130         LOCAL_FS=local
 131         : $-,$ENV
 132         case "$-,$ENV" in
 133         *i*,*) ;;
 134         *,|*ENVFILE*) ;;
 135         *) ENV=;;
 136         esac
 137         # NetBSD at least has good backward compatibility
 138         # so NetBSD/i386 is good enough
 139         case $OS in
 140         NetBSD)
 141                 HOST_ARCH=$MACHINE
 142                 SHARE_ARCH=$OS/$HOST_ARCH
 143                 ;;
 144         OpenBSD)
 145                 arch=`Which arch /usr/bin:/usr/ucb:$PATH`
 146                 MACHINE_ARCH=`$arch -s`
 147                 ;;
 148         esac
 149         NAWK=awk
 150         export NAWK
 151         ;;
 152 HP-UX)
 153         TMP_DIRS="/tmp /usr/tmp"
 154         LOCAL_FS=hfs
 155         MAILER=mailx
 156         # don't rely on /bin/sh, its broken
 157         _shell=/bin/ksh; ENV=
 158         # also, no one would be interested in OSMAJOR=A
 159         case "$OSREL" in
 160         ?.09*)  OSMAJOR=9; PS_AXC=-e;;
 161         ?.10*)  OSMAJOR=10; PS_AXC=-e;;
 162         esac
 163         ;;
 164 IRIX)
 165         LOCAL_FS=efs
 166         ;;
 167 Interix)
 168         MACHINE=i386
 169         MACHINE_ARCH=i386
 170         ;;
 171 UnixWare)
 172         OSREL=`uname -v`
 173         OSMAJOR=`IFS=.; set $OSREL; echo $1`
 174         MACHINE_ARCH=`uname -m`
 175         ;;
 176 Linux)
 177         # Not really any such thing as Linux, but
 178         # this covers red-hat and hopefully others.
 179         case $MACHINE in
 180         i?86)   MACHINE_ARCH=i386;; # we don't care about i686 vs i586
 181         esac
 182         LOCAL_FS=ext2
 183         PS_AXC=axc
 184         [ -x /usr/bin/md5sum ] && { MD5=/usr/bin/md5sum; export MD5; }
 185         ;;
 186 QNX)
 187         case $MACHINE in
 188         x86pc)  MACHINE_ARCH=i386;;
 189         esac
 190         ;;
 191 Haiku)
 192         case $MACHINE in
 193         BeBox)  MACHINE_ARCH=powerpc;;
 194         BeMac)  MACHINE_ARCH=powerpc;;
 195         BePC)   MACHINE_ARCH=i386;;
 196         esac
 197         ;;
 198 esac
 199
 200 HOSTNAME=${HOSTNAME:-`( hostname ) 2>/dev/null`}
 201 HOSTNAME=${HOSTNAME:-`( uname -n ) 2>/dev/null`}
 202 case "$HOSTNAME" in
 203 *.*)    HOST=`IFS=.; set -- $HOSTNAME; echo $1`;;
 204 *)      HOST=$HOSTNAME;;
 205 esac
 206
 207 TMP_DIRS=${TMP_DIRS:-"/tmp /var/tmp"}
 208 MACHINE_ARCH=${MACHINE_ARCH:-$MACHINE}
 209 HOST_ARCH=${HOST_ARCH:-$MACHINE_ARCH}
 210 # we mount server:/share/arch/$SHARE_ARCH as /usr/local
 211 SHARE_ARCH_DEFAULT=$OS/$OSMAJOR.X/$HOST_ARCH
 212 SHARE_ARCH=${SHARE_ARCH:-$SHARE_ARCH_DEFAULT}
 213 LN=${LN:-ln}
 214 TR=${TR:-tr}
 215
 216 # Some people like have /share/$HOST_TARGET/bin etc.
 217 HOST_TARGET=`echo ${OS}${OSMAJOR}-$HOST_ARCH | tr -d / | toLower`
 218 export HOST_TARGET
 219
 220 case `echo -n .` in -n*) N=; C="\c";; *) N=-n; C=;; esac
 221
 222 Echo() {
 223         case "$1" in
 224         -n) _n=$N _c=$C; shift;;
 225         *) _n= _c=;;
 226         esac
 227         echo $_n "$@" $_c
 228 }
 229
 230 export HOSTNAME HOST
 231 export OS MACHINE MACHINE_ARCH OSREL OSMAJOR LOCAL_FS TMP_DIRS MAILER N C K PS_AXC
 232 export LN SHARE_ARCH TR
 233
 234 case /$0 in
 235 */os.sh)
 236         for v in $*
 237         do
 238                 eval vv=\$$v
 239                 echo "$v='$vv'"
 240         done
 241         ;;
 242 esac
 243