NetBSD/build.sh

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#! /bin/sh
# $NetBSD: build.sh,v 1.18 2001/11/02 05:07:22 tv Exp $
#
# Top level build wrapper, for a system containing no tools.
#
# This script should run on any POSIX-compliant shell. For systems
# with a strange /bin/sh, "ksh" may be an ample alternative.
#
bomb () {
echo ""
echo "ERROR: $@"
echo "*** BUILD ABORTED ***"
exit 1
}
[ -d usr.bin/make ] || bomb "build.sh must be run from the top source level"
getarch () {
# Translate a MACHINE into a default MACHINE_ARCH.
case $MACHINE in
arm26|dnard|evbarm|hpcarm|netwinder)
MACHINE_ARCH=arm;;
acorn32|arm32|cats)
MACHINE_ARCH=arm32;;
sun2)
MACHINE_ARCH=m68000;;
amiga|atari|cesfic|hp300|sun3|*68k)
MACHINE_ARCH=m68k;;
mipsco|newsmips|sgimips)
MACHINE_ARCH=mipseb;;
algor|arc|cobalt|hpcmips|playstation2|pmax)
MACHINE_ARCH=mipsel;;
pc532)
MACHINE_ARCH=ns32k;;
bebox|prep|sandpoint|walnut|*ppc)
MACHINE_ARCH=powerpc;;
mmeye)
MACHINE_ARCH=sh3eb;;
dreamcast|evbsh3|hpcsh)
MACHINE_ARCH=sh3el;;
alpha|i386|sparc|sparc64|vax|x86_64)
MACHINE_ARCH=$MACHINE;;
*) bomb "unknown target MACHINE: $MACHINE";;
esac
}
getmakevar () {
cat <<EOF | $make -s -f- _x_
_x_:
echo \${$1}
.include <bsd.prog.mk>
EOF
}
# Emulate "mkdir -p" for systems that have an Old "mkdir".
mkdirp () {
IFS=/; set -- $@; unset IFS
_d=
if [ -z "$1" ]; then _d=/; shift; fi
for _f in "$@"; do
if [ -n "$_f" ]; then
[ -d "$_d$_f" ] || $runcmd mkdir "$_d$_f" || return 1
_d="$_d$_f/"
fi
done
}
resolvepath () {
case $OPTARG in
/*) ;;
*) OPTARG="$cwd/$OPTARG";;
esac
}
usage () {
echo "Usage:"
echo "$0 [-boru] [-a arch] [-j njob] -m mach [-w wrapper]"
echo " [-D dest] [-O obj] [-R release] [-T tools]"
echo ""
echo " -a: set MACHINE_ARCH to arch (otherwise deduced from MACHINE)"
echo " -b: build nbmake and nbmake wrapper script, if needed"
echo " -j: set NBUILDJOBS to njob"
echo " -m: set MACHINE to mach (not required if NetBSD native)"
echo " -n: show commands that would be executed, but do not execute them"
echo " -o: set MKOBJDIRS=no (do not create objdirs at start of build)"
echo " -r: remove contents of TOOLDIR and DESTDIR before building"
echo " -t: build and install tools only (implies -b)"
echo " -u: set UPDATE"
echo " -w: create nbmake script at wrapper (default TOOLDIR/bin/nbmake-MACHINE)"
echo " -D: set DESTDIR to dest"
echo " -O: set obj root directory to obj (sets a MAKEOBJDIR pattern)"
echo " -R: build a release (and set RELEASEDIR to release)"
echo " -T: set TOOLDIR to tools"
echo ""
echo "Note: if -T is unset and TOOLDIR is not set in the environment,"
echo " nbmake will be [re]built unconditionally."
exit 1
}
# Set defaults.
MAKEFLAGS=
buildtarget=build
cwd=`pwd`
do_buildsystem=true
do_buildonlytools=false
do_rebuildmake=false
do_removedirs=false
makeenv=
makewrapper=
opt_a=no
opts='a:bhj:m:nortuw:D:O:R:T:'
runcmd=
if type getopts >/dev/null 2>&1; then
# Use POSIX getopts.
getoptcmd='getopts $opts opt && opt=-$opt'
optargcmd=':'
else
type getopt >/dev/null 2>&1 || bomb "/bin/sh shell is too old; try ksh"
# Use old-style getopt(1) (doesn't handle whitespace in args).
args="`getopt $opts $*`"
[ $? = 0 ] || usage
set -- $args
getoptcmd='[ $# -gt 0 ] && opt="$1" && shift'
optargcmd='OPTARG="$1"; shift'
fi
# Parse command line options.
while eval $getoptcmd; do case $opt in
-a) eval $optargcmd
MACHINE_ARCH=$OPTARG; opt_a=yes;;
-b) do_buildsystem=false;;
-j) eval $optargcmd
MAKEFLAGS="$MAKEFLAGS NBUILDJOBS=$OPTARG"; export MAKEFLAGS;;
# -m overrides MACHINE_ARCH unless "-a" is specified
-m) eval $optargcmd
MACHINE=$OPTARG; [ "$opt_a" != "yes" ] && getarch;;
-n) runcmd=echo;;
-o) MKOBJDIRS=no;;
-r) do_removedirs=true; do_rebuildmake=true;;
-t) do_buildonlytools=true; do_buildsystem=false;;
-u) UPDATE=yes; export UPDATE
makeenv="$makeenv UPDATE";;
-w) eval $optargcmd; resolvepath
makewrapper="$OPTARG";;
-D) eval $optargcmd; resolvepath
DESTDIR="$OPTARG"
makeenv="$makeenv DESTDIR";;
-O) eval $optargcmd; resolvepath
MAKEOBJDIR="\${.CURDIR:C,^$cwd,$OPTARG,}"; export MAKEOBJDIR
makeenv="$makeenv MAKEOBJDIR";;
-R) eval $optargcmd; resolvepath
RELEASEDIR=$OPTARG; export RELEASEDIR
makeenv="$makeenv RELEASEDIR"
buildtarget=release;;
-T) eval $optargcmd; resolvepath
TOOLDIR="$OPTARG"; export TOOLDIR;;
--) break;;
-'?'|-h) usage;;
esac; done
# Set up MACHINE*. On a NetBSD host, these are allowed to be unset.
if [ -z "$MACHINE" ]; then
if [ "`uname -s 2>/dev/null`" != "NetBSD" ]; then
echo "MACHINE must be set, or -m must be used, for cross builds."
echo ""; usage
fi
MACHINE=`uname -m`
fi
[ -n "$MACHINE_ARCH" ] || getarch
# Set up default make(1) environment.
makeenv="$makeenv TOOLDIR MACHINE MACHINE_ARCH MAKEFLAGS"
MAKEFLAGS="-m $cwd/share/mk $MAKEFLAGS MKOBJDIRS=${MKOBJDIRS-yes}"
export MAKEFLAGS MACHINE MACHINE_ARCH
# Test make source file timestamps against installed nbmake binary,
# if TOOLDIR is pre-set.
make=${TOOLDIR-nonexistent}/bin/nbmake
if [ -x $make ]; then
for f in usr.bin/make/*.[ch] usr.bin/make/lst.lib/*.[ch]; do
if [ $f -nt $make ]; then
do_rebuildmake=true; break
fi
done
else
do_rebuildmake=true
fi
# Build bootstrap nbmake if needed.
if $do_rebuildmake; then
$runcmd echo "===> Bootstrapping nbmake"
tmpdir=${TMPDIR-/tmp}/nbbuild$$
$runcmd mkdir $tmpdir || bomb "cannot mkdir: $tmpdir"
trap "rm -r -f $tmpdir" 0
trap "exit 1" 1 2 3 15
$runcmd cd $tmpdir
$runcmd ${HOST_CC-cc} ${HOST_CFLAGS} -DMAKE_BOOTSTRAP \
-o nbmake -I$cwd/usr.bin/make \
$cwd/usr.bin/make/*.c $cwd/usr.bin/make/lst.lib/*.c \
|| bomb "build of nbmake failed"
make=$tmpdir/nbmake
$runcmd cd $cwd
$runcmd rm -f usr.bin/make/*.o usr.bin/make/lst.lib/*.o
fi
# If TOOLDIR isn't already set, make objdirs in "tools" in case the
# default setting from <bsd.own.mk> is used.
if [ -z "$TOOLDIR" ] && [ "$MKOBJDIRS" != "no" ]; then
$runcmd cd tools
$runcmd $make obj NOSUBDIR= || exit 1
$runcmd cd ..
fi
# Find DESTDIR and TOOLDIR.
if [ "$runcmd" = "echo" ]; then
DESTDIR='$DESTDIR'
TOOLDIR='$TOOLDIR'
else
DESTDIR=`getmakevar DESTDIR`; echo "===> DESTDIR path: $DESTDIR"
TOOLDIR=`getmakevar TOOLDIR`; echo "===> TOOLDIR path: $TOOLDIR"
export DESTDIR TOOLDIR
fi
# Check validity of TOOLDIR and DESTDIR.
if [ -z "$TOOLDIR" ] || [ "$TOOLDIR" = "/" ]; then
bomb "TOOLDIR '$TOOLDIR' invalid"
fi
removedirs="$TOOLDIR"
if [ -z "$DESTDIR" ] || [ "$DESTDIR" = "/" ]; then
if $do_buildsystem && \
([ "$buildtarget" = "release" ] || \
[ "`uname -s 2>/dev/null`" != "NetBSD" ] || \
[ "`uname -m`" != "$MACHINE" ]); then
bomb "DESTDIR must be set to a non-root path for cross builds or -R."
elif $do_buildsystem; then
echo "===> WARNING: Building to /."
echo "===> If your kernel is not up to date, this may cause the system to break!"
fi
else
removedirs="$removedirs $DESTDIR"
fi
# Remove the target directories.
if $do_removedirs; then
for f in $removedirs; do
echo "===> Removing $f"
$runcmd rm -r -f $f
done
fi
# Recreate $TOOLDIR.
mkdirp $TOOLDIR/bin || bomb "mkdir of $TOOLDIR/bin failed"
# Install nbmake if it was built.
if $do_rebuildmake; then
$runcmd rm -f $TOOLDIR/bin/nbmake
$runcmd cp $make $TOOLDIR/bin/nbmake
$runcmd rm -r -f $tmpdir
trap 0 1 2 3 15
fi
# Build a nbmake wrapper script, usable by hand as well as by build.sh.
if [ -z "$makewrapper" ]; then
makewrapper=$TOOLDIR/bin/nbmake-$MACHINE
fi
if $do_rebuildmake || [ ! -f $makewrapper ] || [ $makewrapper -ot build.sh ]; then
$runcmd rm -f $makewrapper
if [ "$runcmd" = "echo" ]; then
echo 'cat <<EOF >'$makewrapper
makewrapout=
else
makewrapout=">>$makewrapper"
fi
eval cat <<EOF $makewrapout
#! /bin/sh
# Set proper variables to allow easy "make" building of a NetBSD subtree.
# Generated from: \$NetBSD: build.sh,v 1.18 2001/11/02 05:07:22 tv Exp $
#
EOF
for f in $makeenv; do
eval echo "$f=\'\$`echo $f`\'\;\ export\ $f" $makewrapout
done
eval cat <<EOF $makewrapout
exec \$TOOLDIR/bin/nbmake \${1+"\$@"}
EOF
[ "$runcmd" = "echo" ] && echo EOF
$runcmd chmod +x $makewrapper
fi
if $do_buildsystem; then
${runcmd-exec} $makewrapper $buildtarget
elif $do_buildonlytools; then
if [ "$MKOBJDIRS" != "no" ]; then
$makewrapper obj-tools || exit 1
fi
$runcmd cd tools
${runcmd-exec} $makewrapper MKTOOLS=always build
fi