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 '(' >> $ltf
  30
  31 echo //guessing default target CPU architecture from host architecture
  32 case `uname -m` in
  33     *86) guessed_sbcl_arch=x86 ;;
  34     i86pc) guessed_sbcl_arch=x86 ;;
  35     *x86_64) guessed_sbcl_arch=x86-64 ;;
  36     [Aa]lpha) guessed_sbcl_arch=alpha ;;
  37     sparc*) guessed_sbcl_arch=sparc ;;
  38     sun*) guessed_sbcl_arch=sparc ;;
  39     ppc) guessed_sbcl_arch=ppc ;;
  40     Power*Macintosh) guessed_sbcl_arch=ppc ;;
  41     parisc) guessed_sbcl_arch=hppa ;;
  42     mips*) guessed_sbcl_arch=mips ;;
  43     *)
  44         # If we're not building on a supported target architecture, we
  45         # we have no guess, but it's not an error yet, since maybe
  46         # target architecture will be specified explicitly below.
  47         guessed_sbcl_arch=''
  48         ;;
  49 esac
  50
  51 echo //setting up CPU-architecture-dependent information
  52 sbcl_arch=${SBCL_ARCH:-$guessed_sbcl_arch}
  53 echo sbcl_arch=\"$sbcl_arch\"
  54 if [ "$sbcl_arch" = "" ] ; then
  55     echo "can't guess target SBCL architecture, need SBCL_ARCH environment var"
  56     exit 1
  57 fi
  58 printf ":%s" "$sbcl_arch" >> $ltf
  59
  60 for d in src/compiler src/assembly; do
  61     echo //setting up symlink $d/target
  62     original_dir=`pwd`
  63     cd ./$d
  64     if [ -h target ] ; then
  65         rm target
  66     elif [ -w target ] ; then
  67         echo "I'm afraid to replace non-symlink $d/target with a symlink."
  68         exit 1
  69     fi
  70     if [ -d $sbcl_arch ] ; then
  71         ln -s $sbcl_arch target
  72     else
  73         echo "missing sbcl_arch directory $PWD/$sbcl_arch"
  74         exit 1
  75     fi
  76     cd $original_dir
  77 done
  78
  79 echo //setting up symlink src/compiler/assembly
  80 if [ -h src/compiler/assembly ] ; then
  81     rm src/compiler/assembly
  82 elif [ -w src/compiler/assembly ] ; then
  83     echo "I'm afraid to replace non-symlink compiler/assembly with a symlink."
  84     exit 1
  85 fi
  86 ln -s ../assembly src/compiler/assembly
  87
  88 echo //setting up OS-dependent information
  89 original_dir=`pwd`
  90 cd ./src/runtime/
  91 rm -f Config target-arch-os.h target-arch.h target-os.h target-lispregs.h
  92 # KLUDGE: these two logically belong in the previous section
  93 # ("architecture-dependent"); it seems silly to enforce this in terms
  94 # of the shell script, though. -- CSR, 2002-02-03
  95 ln -s $sbcl_arch-arch.h target-arch.h
  96 ln -s $sbcl_arch-lispregs.h target-lispregs.h
  97 case `uname` in
  98     Linux)
  99         printf ' :elf' >> $ltf
 100         printf ' :linux' >> $ltf
 101         sbcl_os="linux"
 102         if [ $sbcl_arch = "x86-64" ]; then
 103             ln -s Config.x86_64-linux Config
 104         else
 105             ln -s Config.$sbcl_arch-linux Config
 106         fi
 107         ln -s $sbcl_arch-linux-os.h target-arch-os.h
 108         ln -s linux-os.h target-os.h
 109         ;;
 110     OSF1)
 111         # it's changed name twice since it was called OSF/1: clearly
 112         # the marketers forgot to tell the engineers about Digital Unix
 113         # _or_ OSF/1 ...
 114         printf ' :elf' >> $ltf
 115         printf ' :osf1' >> $ltf
 116         sbcl_os="osf1"
 117         ln -s Config.$sbcl_arch-osf1 Config
 118         ln -s $sbcl_arch-osf1-os.h target-arch-os.h
 119         ln -s osf1-os.h target-os.h
 120         ;;
 121     *BSD)
 122         printf ' :bsd' >> $ltf
 123         ln -s $sbcl_arch-bsd-os.h target-arch-os.h
 124         ln -s bsd-os.h target-os.h
 125         case `uname` in
 126             FreeBSD)
 127                 printf ' :elf' >> $ltf
 128                 printf ' :freebsd' >> $ltf
 129                 sbcl_os="freebsd"
 130                 ln -s Config.$sbcl_arch-freebsd Config
 131                 ;;
 132             OpenBSD)
 133                 printf ' :elf' >> $ltf
 134                 printf ' :openbsd' >> $ltf
 135                 sbcl_os="openbsd"
 136                 ln -s Config.$sbcl_arch-openbsd Config
 137                 ;;
 138             NetBSD)
 139                 printf ' :netbsd' >> $ltf
 140                 printf ' :elf' >> $ltf
 141                 sbcl_os="netbsd"
 142                 ln -s Config.$sbcl_arch-netbsd Config
 143                 ;;
 144             *)
 145                 echo unsupported BSD variant: `uname`
 146                 exit 1
 147                 ;;
 148         esac
 149         ;;
 150     Darwin)
 151         printf ' :mach-o' >> $ltf
 152         printf ' :bsd' >> $ltf
 153         sbcl_os="darwin"
 154         ln -s $sbcl_arch-darwin-os.h target-arch-os.h
 155         ln -s bsd-os.h target-os.h
 156         printf ' :darwin' >> $ltf
 157         ln -s Config.$sbcl_arch-darwin Config
 158         ;;
 159     SunOS)
 160         printf ' :elf' >> $ltf
 161         printf ' :sunos' >> $ltf
 162         sbcl_os="sunos"
 163         ln -s Config.$sbcl_arch-sunos Config
 164         ln -s $sbcl_arch-sunos-os.h target-arch-os.h
 165         ln -s sunos-os.h target-os.h
 166         ;;
 167     *)
 168         echo unsupported OS type: `uname`
 169         exit 1
 170         ;;
 171 esac
 172 cd $original_dir
 173
 174 # FIXME: Things like :c-stack-grows-..., etc, should be
 175 # *derived-target-features* or equivalent, so that there was a nicer
 176 # way to specify them then sprinkling them in this file. They should
 177 # still be tweakable by advanced users, though, but probably not
 178 # appear in *features* of target. #!+/- should be adjusted to take
 179 # them in account as well. At minimum the nicer specification stuff,
 180 # though:
 181 #
 182 # (define-feature :dlopen (features)
 183 #   (union '(:bsd :linux :darwin :sunos) features))
 184 #
 185 # (define-feature :c-stack-grows-downwards-not-upwards (features)
 186 #   (member :x86 features))
 187
 188 # KLUDGE: currently the x86 only works with the generational garbage
 189 # collector (indicated by the presence of :GENCGC in *FEATURES*) and
 190 # alpha, sparc and ppc with the stop'n'copy collector (indicated by
 191 # the absence of :GENCGC in *FEATURES*). This isn't a great
 192 # separation, but for now, rather than have :GENCGC in
 193 # base-target-features.lisp-expr, we add it into local-target-features
 194 # if we're building for x86. -- CSR, 2002-02-21 Then we do something
 195 # similar with :STACK-GROWS-FOOWARD, too. -- WHN 2002-03-03
 196 if [ "$sbcl_arch" = "x86" ]; then
 197     printf ' :gencgc :stack-grows-downward-not-upward :c-stack-is-control-stack' >> $ltf
 198     printf ' :stack-allocatable-closures' >> $ltf
 199     if [ "$sbcl_os" = "linux" ] || [ "$sbcl_os" = "freebsd" ] || [ "$sbcl_os" = "netbsd" ] || [ "$sbcl_os" = "sunos" ]; then
 200         printf ' :linkage-table' >> $ltf
 201     fi
 202 elif [ "$sbcl_arch" = "x86-64" ]; then
 203     printf ' :gencgc :stack-grows-downward-not-upward :c-stack-is-control-stack :linkage-table' >> $ltf
 204     printf ' :stack-allocatable-closures' >> $ltf
 205 elif [ "$sbcl_arch" = "mips" ]; then
 206     # Use a little C program to try to guess the endianness.  Ware
 207     # cross-compilers!
 208     #
 209     # FIXME: integrate to grovel-features, mayhaps
 210     $GNUMAKE -C tools-for-build determine-endianness -I src/runtime
 211     tools-for-build/determine-endianness >> $ltf
 212 elif [ "$sbcl_arch" = "ppc" -a "$sbcl_os" = "linux" ]; then
 213     # Use a C program to detect which kind of glibc we're building on,
 214     # to bandage across the break in source compatibility between
 215     # versions 2.3.1 and 2.3.2
 216     #
 217     # FIXME: integrate to grovel-features., maypahps
 218     printf ' :stack-allocatable-closures' >> $ltf
 219     $GNUMAKE -C tools-for-build where-is-mcontext -I src/runtime
 220     tools-for-build/where-is-mcontext > src/runtime/ppc-linux-mcontext.h
 221 elif [ "$sbcl_arch" = "ppc" -a "$sbcl_os" = "darwin" ]; then
 222     printf ' :stack-allocatable-closures' >> $ltf
 223     # We provide a dlopen shim, so a little lie won't hurt
 224     printf " :os-provides-dlopen :linkage-table" >> $ltf
 225     # The default stack ulimit under darwin is too small to run PURIFY.
 226     # Best we can do is complain and exit at this stage
 227     if [ "`ulimit -s`" = "512" ]; then
 228         echo "Your stack size limit is too small to build SBCL."
 229         echo "See the limit(1) or ulimit(1) commands and the README file."
 230         exit 1
 231     fi
 232 elif [ "$sbcl_arch" = "sparc" ]; then
 233     # Test the compiler in order to see if we are building on Sun
 234     # toolchain as opposed to GNU binutils, and write the appropriate
 235     # FUNCDEF macro for assembler. No harm in running this on sparc-linux
 236     # as well.
 237     sh tools-for-build/sparc-funcdef.sh > src/runtime/sparc-funcdef.h
 238     if [ "$sbcl_os" = "sunos" ] || [ "$sbcl_os" = "linux" ]; then
 239         printf ' :linkage-table' >> $ltf
 240     fi
 241     printf ' :stack-allocatable-closures' >> $ltf
 242 elif [ "$sbcl_arch" = "alpha" ]; then
 243     printf ' :stack-allocatable-closures' >> $ltf
 244 else
 245     # Nothing need be done in this case, but sh syntax wants a placeholder.
 246     echo > /dev/null
 247 fi
 248
 249 export sbcl_os sbcl_arch
 250 sh tools-for-build/grovel-features.sh >> $ltf
 251
 252 echo //finishing $ltf
 253 echo ')' >> $ltf
 254
 255 # FIXME: The version system should probably be redone along these lines:
 256 #
 257 # echo //setting up version information.
 258 # versionfile=version.txt
 259 # cp base-version.txt $versionfile
 260 # echo " (built `date -u` by `whoami`@`hostname`)" >> $versionfile
 261 # echo 'This is a machine-generated file and should not be edited by hand.' >> $versionfile
 262
 263 # Make a unique ID for this build (to discourage people from
 264 # mismatching sbcl and *.core files).
 265 if [ `uname` = "SunOS" ] ; then
 266   # use /usr/xpg4/bin/id instead of /usr/bin/id
 267   PATH=/usr/xpg4/bin:$PATH
 268 fi
 269 echo '"'`hostname`-`id -un`-`date +%Y-%m-%d-%H-%M-%S`'"' > output/build-id.tmp
 270