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make.sh    98 lines (92 with data), 4.9 kB

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#!/bin/sh
# "When we build software, it's a good idea to have a reliable method
# for getting an executable from it. We want any two reconstructions
# starting from the same source to end up in the same result. That's
# just a basic intellectual premise."
# -- Christian Queinnec, in _Lisp In Small Pieces_, p. 313
# This software is part of the SBCL system. See the README file for
# more information.
#
# This software is derived from the CMU CL system, which was
# written at Carnegie Mellon University and released into the
# public domain. The software is in the public domain and is
# provided with absolutely no warranty. See the COPYING and CREDITS
# files for more information.
# The value of SBCL_XC_HOST should be a command to invoke the
# cross-compilation Lisp system in such a way that it reads commands
# from standard input, and terminates when it reaches end of file on
# standard input. Some suitable values are:
# "sbcl" to use an existing SBCL binary as a cross-compilation host
# "sbcl --sysinit /dev/null --userinit /dev/null"
# to use an existing SBCL binary as a cross-compilation host
# even though you have stuff in your initialization files
# which makes it behave in such a non-standard way that
# it keeps the build from working
# "sbcl --disable-debugger"
# to use an existing SBCL binary as a cross-compilation host
# and tell it to handle errors as best it can by itself
# (probably by dying with an error code) instead of waiting
# endlessly for a programmer to help it out with input
# on *DEBUG-IO*
# "lisp -batch" to use an existing CMU CL binary as a cross-compilation host
# "lisp -noinit -batch"
# to use an existing CMU CL binary as a cross-compilation host
# when you have weird things in your .cmucl-init file
# "openmcl --batch"
# to use an OpenMCL binary as a cross-compilation host
#
# FIXME: Make a more sophisticated command line parser, probably
# accepting "sh make.sh --xc-host foolisp" instead of the
# the present "sh make.sh foolisp".
# FIXME: Tweak this script, and the rest of the system, to support
# a second bootstrapping pass in which the cross-compilation host is
# known to be SBCL itself, so that the cross-compiler can do some
# optimizations (especially specializable arrays) that it doesn't
# know how to implement how in a portable way. (Or maybe that wouldn't
# require a second pass, just testing at build-the-cross-compiler time
# whether the cross-compilation host returns suitable values from
# UPGRADED-ARRAY-ELEMENT-TYPE?)
# FIXME: --noprogrammer was deprecated in sbcl-0.7.5, replaced by
# --disable-debugger. We still use the old form here because the
# change was not preannounced, and it would be rude to make our new
# version of SBCL unbootstrappable by immediately prior versions.
# But in a year or so the --noprogrammer here can change to
# --disable-debugger (and the deprecated --noprogrammer support can
# go away completely).
SBCL_XC_HOST="${1:-sbcl --noprogrammer}"
export SBCL_XC_HOST
echo //SBCL_XC_HOST=\"$SBCL_XC_HOST\"
# If you're cross-compiling, you should probably just walk through the
# make-config.sh script by hand doing the right thing on both the host
# and target machines.
sh make-config.sh || exit 1
# The make-host-*.sh scripts are run on the cross-compilation host,
# and the make-target-*.sh scripts are run on the target machine. In
# ordinary compilation, we just do these phases consecutively on the
# same machine, but if you wanted to cross-compile from one machine
# which supports Common Lisp to another which does not (yet:-) support
# Common Lisp, you could do something like this:
# Create copies of the source tree on both the host and the target.
# Read the make-config.sh script carefully and emulate it by hand
# on both machines (e.g. creating "target"-named symlinks to
# identify the target architecture).
# On the host system:
# SBCL_XC_HOST=<whatever> sh make-host-1.sh
# Copy src/runtime/sbcl.h from the host system to the target system.
# On the target system:
# sh make-target-1.sh
# Copy src/runtime/sbcl.nm and output/stuff-groveled-from-headers.lisp
# from the target system to the host system.
# On the host system:
# SBCL_XC_HOST=<whatever> sh make-host-2.sh
# Copy output/cold-sbcl.core from the host system to the target system.
# On the target system:
# sh make-host-2.sh
# Or, if you can set up the files somewhere shared (with NFS, AFS, or
# whatever) between the host machine and the target machine, the basic
# procedure above should still work, but you can skip the "copy" steps.
sh make-host-1.sh || exit 1
sh make-target-1.sh || exit 1
sh make-host-2.sh || exit 1
sh make-target-2.sh || exit 1
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