make-config.sh

   1 #!/bin/sh
   2
   3 # The make-config.sh script uses information about the target machine
   4 # to set things up for compilation. It's vaguely like a stripped-down
   5 # version of autoconf. It's intended to be run as part of make.sh. The
   6 # only time you'd want to run it by itself is if you're trying to
   7 # cross-compile the system or if you're doing some kind of
   8 # troubleshooting.
   9
  10 # This software is part of the SBCL system. See the README file for
  11 # more information.
  12 #
  13 # This software is derived from the CMU CL system, which was
  14 # written at Carnegie Mellon University and released into the
  15 # public domain. The software is in the public domain and is
  16 # provided with absolutely no warranty. See the COPYING and CREDITS
  17 # files for more information.
  18
  19 echo //entering make-config.sh
  20
  21 echo //ensuring the existence of output/ directory
  22 if [ ! -d output ] ; then mkdir output; fi
  23
  24 ltf=`pwd`/local-target-features.lisp-expr
  25 echo //initializing $ltf
  26 echo ';;;; This is a machine-generated file.' > $ltf
  27 echo ';;;; Please do not edit it by hand.' >> $ltf
  28 echo ';;;; See make-config.sh.' >> $ltf
  29 printf '(' >> $ltf
  30
  31 echo //guessing default target CPU architecture from host architecture
  32 case `uname -m` in
  33     *86) guessed_sbcl_arch=x86 ;;
  34     [Aa]lpha) guessed_sbcl_arch=alpha ;;
  35     sparc*) guessed_sbcl_arch=sparc ;;
  36     sun*) guessed_sbcl_arch=sparc ;;
  37     ppc) guessed_sbcl_arch=ppc ;;
  38     *)
  39         # If we're not building on a supported target architecture, we
  40         # we have no guess, but it's not an error yet, since maybe
  41         # target architecture will be specified explicitly below.
  42         guessed_sbcl_arch=''
  43         ;;
  44 esac
  45
  46 echo //setting up CPU-architecture-dependent information
  47 sbcl_arch=${SBCL_ARCH:-$guessed_sbcl_arch}
  48 echo sbcl_arch=\"$sbcl_arch\"
  49 if [ "$sbcl_arch" = "" ] ; then
  50     echo "can't guess target SBCL architecture, need SBCL_ARCH environment var"
  51     exit 1
  52 fi
  53 printf ":%s" "$sbcl_arch" >> $ltf
  54 # KLUDGE: currently the x86 only works with the generational garbage
  55 # collector (indicated by the presence of :GENCGC in *FEATURES*) and
  56 # alpha, sparc and ppc with the stop'n'copy collector (indicated by
  57 # the absence of :GENCGC in *FEATURES*). This isn't a great
  58 # separation, but for now, rather than have :GENCGC in
  59 # base-target-features.lisp-expr, we add it into local-target-features
  60 # if we're building for x86. -- CSR, 2002-02-21 Then we do something
  61 # similar with :STACK-GROWS-FOOWARD, too. -- WHN 2002-03-03
  62 if [ "$sbcl_arch" = "x86" ] ; then
  63     printf ' :gencgc :stack-grows-downward-not-upward :c-stack-is-control-stack' >> $ltf
  64 else
  65     # Nothing need be done in this case, but sh syntax wants a placeholder.
  66     echo > /dev/null
  67 fi
  68 for d in src/compiler src/assembly; do
  69     echo //setting up symlink $d/target
  70     original_dir=`pwd`
  71     cd $d
  72     if [ -h target ] ; then
  73         rm target
  74     elif [ -w target ] ; then
  75         echo "I'm afraid to replace non-symlink $d/target with a symlink."
  76         exit 1
  77     fi
  78     if [ -d $sbcl_arch ] ; then
  79         ln -s $sbcl_arch target
  80     else
  81         echo "missing sbcl_arch directory $PWD/$sbcl_arch"
  82         exit 1
  83     fi
  84     cd $original_dir
  85 done
  86
  87 echo //setting up OS-dependent information
  88 original_dir=`pwd`
  89 cd src/runtime/
  90 rm -f Config target-arch-os.h target-arch.h target-os.h target-lispregs.h
  91 # KLUDGE: these two logically belong in the previous section
  92 # ("architecture-dependent"); it seems silly to enforce this in terms
  93 # of the shell script, though. -- CSR, 2002-02-03
  94 ln -s $sbcl_arch-arch.h target-arch.h
  95 ln -s $sbcl_arch-lispregs.h target-lispregs.h
  96 case `uname` in
  97     Linux)
  98         printf ' :linux' >> $ltf
  99         ln -s Config.$sbcl_arch-linux Config
 100         ln -s $sbcl_arch-linux-os.h target-arch-os.h
 101         ln -s linux-os.h target-os.h
 102         ;;
 103     OSF1)
 104         # it's changed name twice since it was called OSF/1: clearly
 105         # the marketers forgot to tell the engineers about Digital Unix
 106         # _or_ OSF/1 ...
 107         printf ' :osf1' >> $ltf
 108         ln -s Config.$sbcl_arch-osf1 Config
 109         ln -s $sbcl_arch-osf1-os.h target-arch-os.h
 110         ln -s osf1-os.h target-os.h
 111         ;;
 112     *BSD)
 113         printf ' :bsd' >> $ltf
 114         ln -s $sbcl_arch-bsd-os.h target-arch-os.h
 115         ln -s bsd-os.h target-os.h
 116         case `uname` in
 117             FreeBSD)
 118                 printf ' :freebsd' >> $ltf
 119                 ln -s Config.$sbcl_arch-freebsd Config
 120                 ;;
 121             OpenBSD)
 122                 printf ' :openbsd' >> $ltf
 123                 ln -s Config.$sbcl_arch-openbsd Config
 124                 ;;
 125             *)
 126                 echo unsupported BSD variant: `uname`
 127                 exit 1
 128                 ;;
 129         esac
 130         ;;
 131     SunOS)
 132         printf ' :sunos' >> $ltf
 133         ln -s Config.$sbcl_arch-sunos Config
 134         ln -s $sbcl_arch-sunos-os.h target-arch-os.h
 135         ln -s sunos-os.h target-os.h
 136         ;;
 137     *)
 138         echo unsupported OS type: `uname`
 139         exit 1
 140         ;;
 141 esac
 142 cd $original_dir
 143
 144 echo //finishing $ltf
 145 echo ')' >> $ltf
 146
 147 # FIXME: The version system should probably be redone along these lines:
 148 #
 149 # echo //setting up version information.
 150 # versionfile=version.txt
 151 # cp base-version.txt $versionfile
 152 # echo " (built `date -u` by `whoami`@`hostname`)" >> $versionfile
 153 # echo 'This is a machine-generated file and should not be edited by hand.' >> $versionfile