make-config.sh

   1 #!/bin/sh
   2 set -e
   3
   4 # The make-config.sh script uses information about the target machine
   5 # to set things up for compilation. It's vaguely like a stripped-down
   6 # version of autoconf. It's intended to be run as part of make.sh. The
   7 # only time you'd want to run it by itself is if you're trying to
   8 # cross-compile the system or if you're doing some kind of
   9 # troubleshooting.
  10
  11 # This software is part of the SBCL system. See the README file for
  12 # more information.
  13 #
  14 # This software is derived from the CMU CL system, which was
  15 # written at Carnegie Mellon University and released into the
  16 # public domain. The software is in the public domain and is
  17 # provided with absolutely no warranty. See the COPYING and CREDITS
  18 # files for more information.
  19
  20 echo //entering make-config.sh
  21
  22 echo //ensuring the existence of output/ directory
  23 if [ ! -d output ] ; then mkdir output; fi
  24
  25 ltf=`pwd`/local-target-features.lisp-expr
  26 echo //initializing $ltf
  27 echo ';;;; This is a machine-generated file.' > $ltf
  28 echo ';;;; Please do not edit it by hand.' >> $ltf
  29 echo ';;;; See make-config.sh.' >> $ltf
  30 printf '(' >> $ltf
  31
  32 echo //guessing default target CPU architecture from host architecture
  33 case `uname -m` in
  34     *86) guessed_sbcl_arch=x86 ;;
  35     i86pc) guessed_sbcl_arch=x86 ;;
  36     *x86_64) guessed_sbcl_arch=x86-64 ;;
  37     [Aa]lpha) guessed_sbcl_arch=alpha ;;
  38     sparc*) guessed_sbcl_arch=sparc ;;
  39     sun*) guessed_sbcl_arch=sparc ;;
  40     ppc) guessed_sbcl_arch=ppc ;;
  41     Power*Macintosh) guessed_sbcl_arch=ppc ;;
  42     parisc) guessed_sbcl_arch=hppa ;;
  43     mips*) guessed_sbcl_arch=mips ;;
  44     *)
  45         # If we're not building on a supported target architecture, we
  46         # we have no guess, but it's not an error yet, since maybe
  47         # target architecture will be specified explicitly below.
  48         guessed_sbcl_arch=''
  49         ;;
  50 esac
  51
  52 echo //setting up CPU-architecture-dependent information
  53 sbcl_arch=${SBCL_ARCH:-$guessed_sbcl_arch}
  54 echo sbcl_arch=\"$sbcl_arch\"
  55 if [ "$sbcl_arch" = "" ] ; then
  56     echo "can't guess target SBCL architecture, need SBCL_ARCH environment var"
  57     exit 1
  58 fi
  59 printf ":%s" "$sbcl_arch" >> $ltf
  60
  61 for d in src/compiler src/assembly; do
  62     echo //setting up symlink $d/target
  63     original_dir=`pwd`
  64     cd ./$d
  65     if [ -h target ] ; then
  66         rm target
  67     elif [ -w target ] ; then
  68         echo "I'm afraid to replace non-symlink $d/target with a symlink."
  69         exit 1
  70     fi
  71     if [ -d $sbcl_arch ] ; then
  72         ln -s $sbcl_arch target
  73     else
  74         echo "missing sbcl_arch directory $PWD/$sbcl_arch"
  75         exit 1
  76     fi
  77     cd $original_dir
  78 done
  79
  80 echo //setting up symlink src/compiler/assembly
  81 if [ -h src/compiler/assembly ] ; then
  82     rm src/compiler/assembly
  83 elif [ -w src/compiler/assembly ] ; then
  84     echo "I'm afraid to replace non-symlink compiler/assembly with a symlink."
  85     exit 1
  86 fi
  87 ln -s ../assembly src/compiler/assembly
  88
  89 echo //setting up OS-dependent information
  90 original_dir=`pwd`
  91 cd ./src/runtime/
  92 rm -f Config target-arch-os.h target-arch.h target-os.h target-lispregs.h
  93 # KLUDGE: these two logically belong in the previous section
  94 # ("architecture-dependent"); it seems silly to enforce this in terms
  95 # of the shell script, though. -- CSR, 2002-02-03
  96 ln -s $sbcl_arch-arch.h target-arch.h
  97 ln -s $sbcl_arch-lispregs.h target-lispregs.h
  98 case `uname` in
  99     Linux)
 100         printf ' :elf' >> $ltf
 101         printf ' :linux' >> $ltf
 102         sbcl_os="linux"
 103         if [ $sbcl_arch = "x86-64" ]; then
 104             ln -s Config.x86_64-linux Config
 105         else
 106             ln -s Config.$sbcl_arch-linux Config
 107         fi
 108         ln -s $sbcl_arch-linux-os.h target-arch-os.h
 109         ln -s linux-os.h target-os.h
 110         ;;
 111     OSF1)
 112         # it's changed name twice since it was called OSF/1: clearly
 113         # the marketers forgot to tell the engineers about Digital Unix
 114         # _or_ OSF/1 ...
 115         printf ' :elf' >> $ltf
 116         printf ' :osf1' >> $ltf
 117         sbcl_os="osf1"
 118         ln -s Config.$sbcl_arch-osf1 Config
 119         ln -s $sbcl_arch-osf1-os.h target-arch-os.h
 120         ln -s osf1-os.h target-os.h
 121         ;;
 122     *BSD)
 123         printf ' :bsd' >> $ltf
 124         ln -s $sbcl_arch-bsd-os.h target-arch-os.h
 125         ln -s bsd-os.h target-os.h
 126         case `uname` in
 127             FreeBSD)
 128                 printf ' :elf' >> $ltf
 129                 printf ' :freebsd' >> $ltf
 130                 sbcl_os="freebsd"
 131                 ln -s Config.$sbcl_arch-freebsd Config
 132                 ;;
 133             OpenBSD)
 134                 printf ' :elf' >> $ltf
 135                 printf ' :openbsd' >> $ltf
 136                 sbcl_os="openbsd"
 137                 ln -s Config.$sbcl_arch-openbsd Config
 138                 ;;
 139             NetBSD)
 140                 printf ' :netbsd' >> $ltf
 141                 printf ' :elf' >> $ltf
 142                 sbcl_os="netbsd"
 143                 ln -s Config.$sbcl_arch-netbsd Config
 144                 ;;
 145             *)
 146                 echo unsupported BSD variant: `uname`
 147                 exit 1
 148                 ;;
 149         esac
 150         ;;
 151     Darwin)
 152         printf ' :mach-o' >> $ltf
 153         printf ' :bsd' >> $ltf
 154         sbcl_os="darwin"
 155         ln -s $sbcl_arch-darwin-os.h target-arch-os.h
 156         ln -s bsd-os.h target-os.h
 157         printf ' :darwin' >> $ltf
 158         ln -s Config.$sbcl_arch-darwin Config
 159         ;;
 160     SunOS)
 161         printf ' :elf' >> $ltf
 162         printf ' :sunos' >> $ltf
 163         sbcl_os="sunos"
 164         ln -s Config.$sbcl_arch-sunos Config
 165         ln -s $sbcl_arch-sunos-os.h target-arch-os.h
 166         ln -s sunos-os.h target-os.h
 167         ;;
 168     *)
 169         echo unsupported OS type: `uname`
 170         exit 1
 171         ;;
 172 esac
 173 cd $original_dir
 174
 175 # FIXME: Things like :c-stack-grows-..., etc, should be
 176 # *derived-target-features* or equivalent, so that there was a nicer
 177 # way to specify them then sprinkling them in this file. They should
 178 # still be tweakable by advanced users, though, but probably not
 179 # appear in *features* of target. #!+/- should be adjusted to take
 180 # them in account as well. At minimum the nicer specification stuff,
 181 # though:
 182 #
 183 # (define-feature :dlopen (features)
 184 #   (union '(:bsd :linux :darwin :sunos) features))
 185 #
 186 # (define-feature :c-stack-grows-downwards-not-upwards (features)
 187 #   (member :x86 features))
 188
 189 # KLUDGE: currently the x86 only works with the generational garbage
 190 # collector (indicated by the presence of :GENCGC in *FEATURES*) and
 191 # alpha, sparc and ppc with the stop'n'copy collector (indicated by
 192 # the absence of :GENCGC in *FEATURES*). This isn't a great
 193 # separation, but for now, rather than have :GENCGC in
 194 # base-target-features.lisp-expr, we add it into local-target-features
 195 # if we're building for x86. -- CSR, 2002-02-21 Then we do something
 196 # similar with :STACK-GROWS-FOOWARD, too. -- WHN 2002-03-03
 197 if [ "$sbcl_arch" = "x86" ]; then
 198     printf ' :gencgc :stack-grows-downward-not-upward :c-stack-is-control-stack' >> $ltf
 199     printf ' :stack-allocatable-closures' >> $ltf
 200     if [ "$sbcl_os" = "linux" ] || [ "$sbcl_os" = "freebsd" ] || [ "$sbcl_os" = "netbsd" ] || [ "$sbcl_os" = "sunos" ]; then
 201         printf ' :linkage-table' >> $ltf
 202     fi
 203 elif [ "$sbcl_arch" = "x86-64" ]; then
 204     printf ' :gencgc :stack-grows-downward-not-upward :c-stack-is-control-stack :linkage-table' >> $ltf
 205     printf ' :stack-allocatable-closures' >> $ltf
 206 elif [ "$sbcl_arch" = "mips" ]; then
 207     printf ' :linkage-table' >> $ltf
 208     printf ' :stack-allocatable-closures' >> $ltf
 209     # Use a little C program to try to guess the endianness.  Ware
 210     # cross-compilers!
 211     #
 212     # FIXME: integrate to grovel-features, mayhaps
 213     $GNUMAKE -C tools-for-build determine-endianness -I src/runtime
 214     tools-for-build/determine-endianness >> $ltf
 215 elif [ "$sbcl_arch" = "ppc" -a "$sbcl_os" = "linux" ]; then
 216     # Use a C program to detect which kind of glibc we're building on,
 217     # to bandage across the break in source compatibility between
 218     # versions 2.3.1 and 2.3.2
 219     #
 220     # FIXME: integrate to grovel-features., maypahps
 221     printf ' :stack-allocatable-closures' >> $ltf
 222     $GNUMAKE -C tools-for-build where-is-mcontext -I src/runtime
 223     tools-for-build/where-is-mcontext > src/runtime/ppc-linux-mcontext.h
 224 elif [ "$sbcl_arch" = "ppc" -a "$sbcl_os" = "darwin" ]; then
 225     printf ' :stack-allocatable-closures' >> $ltf
 226     # We provide a dlopen shim, so a little lie won't hurt
 227     printf " :os-provides-dlopen :linkage-table" >> $ltf
 228     # The default stack ulimit under darwin is too small to run PURIFY.
 229     # Best we can do is complain and exit at this stage
 230     if [ "`ulimit -s`" = "512" ]; then
 231         echo "Your stack size limit is too small to build SBCL."
 232         echo "See the limit(1) or ulimit(1) commands and the README file."
 233         exit 1
 234     fi
 235 elif [ "$sbcl_arch" = "sparc" ]; then
 236     # Test the compiler in order to see if we are building on Sun
 237     # toolchain as opposed to GNU binutils, and write the appropriate
 238     # FUNCDEF macro for assembler. No harm in running this on sparc-linux
 239     # as well.
 240     sh tools-for-build/sparc-funcdef.sh > src/runtime/sparc-funcdef.h
 241     if [ "$sbcl_os" = "sunos" ] || [ "$sbcl_os" = "linux" ]; then
 242         printf ' :linkage-table' >> $ltf
 243     fi
 244     printf ' :stack-allocatable-closures' >> $ltf
 245 elif [ "$sbcl_arch" = "alpha" ]; then
 246     printf ' :stack-allocatable-closures' >> $ltf
 247 else
 248     # Nothing need be done in this case, but sh syntax wants a placeholder.
 249     echo > /dev/null
 250 fi
 251
 252 export sbcl_os sbcl_arch
 253 sh tools-for-build/grovel-features.sh >> $ltf
 254
 255 echo //finishing $ltf
 256 echo ')' >> $ltf
 257
 258 # FIXME: The version system should probably be redone along these lines:
 259 #
 260 # echo //setting up version information.
 261 # versionfile=version.txt
 262 # cp base-version.txt $versionfile
 263 # echo " (built `date -u` by `whoami`@`hostname`)" >> $versionfile
 264 # echo 'This is a machine-generated file and should not be edited by hand.' >> $versionfile
 265
 266 # Make a unique ID for this build (to discourage people from
 267 # mismatching sbcl and *.core files).
 268 if [ `uname` = "SunOS" ] ; then
 269   # use /usr/xpg4/bin/id instead of /usr/bin/id
 270   PATH=/usr/xpg4/bin:$PATH
 271 fi
 272 echo '"'`hostname`-`id -un`-`date +%Y-%m-%d-%H-%M-%S`'"' > output/build-id.tmp