make-host-2.sh

   1 #!/bin/sh
   2 set -e
   3
   4 # This is a script to be run as part of make.sh. The only time you'd
   5 # want to run it by itself is if you're trying to cross-compile the
   6 # system or if you're doing some kind of troubleshooting.
   7
   8 # This software is part of the SBCL system. See the README file for
   9 # more information.
  10 #
  11 # This software is derived from the CMU CL system, which was
  12 # written at Carnegie Mellon University and released into the
  13 # public domain. The software is in the public domain and is
  14 # provided with absolutely no warranty. See the COPYING and CREDITS
  15 # files for more information.
  16
  17 echo //entering make-host-2.sh
  18
  19 LANG=C
  20 LC_ALL=C
  21 export LANG LC_ALL
  22
  23 # Load our build configuration
  24 . output/build-config
  25
  26 # In some cases, a debugging build of the system will creates a core
  27 # file output/after-xc.core in the next step. In cases where it
  28 # doesn't, it's confusing and basically useless to have any old copies
  29 # lying around, so delete:
  30 rm -f output/after-xc.core
  31
  32 # In a fresh host Lisp invocation, load and run the cross-compiler to
  33 # create the target object files describing the target SBCL.
  34 #
  35 # (There are at least three advantages to running the cross-compiler in a
  36 # fresh host Lisp invocation instead of just using the same Lisp invocation
  37 # that we used to compile it:
  38 #   (1) It reduces the chance that the cross-compilation process
  39 #       inadvertently comes to depend on some weird compile-time
  40 #       side effect.
  41 #   (2) It reduces peak memory demand (because definitions wrapped in
  42 #       (EVAL-WHEN (:COMPILE-TOPLEVEL :EXECUTE) ..) aren't defined
  43 #       in the fresh image).
  44 #   (3) It makes it easier to jump in and retry a step when tweaking
  45 #       and experimenting with the bootstrap procedure.
  46 # Admittedly, these don't seem to be enormously important advantages, but
  47 # the only disadvantage seems to be the extra time required to reload
  48 # the fasl files into the new host Lisp, and that doesn't seem to be
  49 # an enormously important disadvantage, either.)
  50 echo //running cross-compiler to create target object files
  51 $SBCL_XC_HOST < make-host-2.lisp
  52
  53 # Run GENESIS (again) in order to create cold-sbcl.core. (The first
  54 # time was before we ran the cross-compiler, in order to create the
  55 # header file which was needed in order to run gcc on the runtime
  56 # code.)
  57 sh make-genesis-2.sh