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 # In some cases, a debugging build of the system will creates a core
  24 # file output/after-xc.core in the next step. In cases where it
  25 # doesn't, it's confusing and basically useless to have any old copies
  26 # lying around, so delete:
  27 rm -f output/after-xc.core
  28
  29 # In a fresh host Lisp invocation, load and run the cross-compiler to
  30 # create the target object files describing the target SBCL.
  31 #
  32 # (There are at least three advantages to running the cross-compiler in a
  33 # fresh host Lisp invocation instead of just using the same Lisp invocation
  34 # that we used to compile it:
  35 #   (1) It reduces the chance that the cross-compilation process
  36 #       inadvertently comes to depend on some weird compile-time
  37 #       side effect.
  38 #   (2) It reduces peak memory demand (because definitions wrapped in
  39 #       (EVAL-WHEN (:COMPILE-TOPLEVEL :EXECUTE) ..) aren't defined
  40 #       in the fresh image).
  41 #   (3) It makes it easier to jump in and retry a step when tweaking
  42 #       and experimenting with the bootstrap procedure.
  43 # Admittedly, these don't seem to be enormously important advantages, but
  44 # the only disadvantage seems to be the extra time required to reload
  45 # the fasl files into the new host Lisp, and that doesn't seem to be
  46 # an enormously important disadvantage, either.)
  47 echo //running cross-compiler to create target object files
  48 $SBCL_XC_HOST < make-host-2.lisp
  49
  50 # Run GENESIS (again) in order to create cold-sbcl.core. (The first
  51 # time was before we ran the cross-compiler, in order to create the
  52 # header file which was needed in order to run gcc on the runtime
  53 # code.)
  54 sh make-genesis-2.sh