NetBSD/build.sh

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#! /usr/bin/env sh
# $NetBSD: build.sh,v 1.69 2002/10/02 16:57:29 thorpej 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" or "bash" may be an ample alternative.
#
# Note, however, that due to the way the interpreter is invoked above,
# if a POSIX-compliant shell is the first in the PATH, you won't have
# to take any further action.
#
bomb () {
echo ""
echo "ERROR: $@"
echo "*** BUILD ABORTED ***"
exit 1
}
[ -d usr.bin/make ] || bomb "build.sh must be run from the top source level"
[ -f share/mk/bsd.own.mk ] || bomb "src/share/mk is missing; please re-fetch the source tree"
# If $PWD is a valid name of the current directory, POSIX mandates that pwd
# return it by default which causes problems in the presence of symlinks.
# Unsetting PWD is simpler than changing every occurrence of pwd to use -P.
#
# XXX Except that doesn't work on Solaris.
unset PWD
if [ "x`uname -s`" = "xSunOS" ]; then
TOP=`pwd -P`
else
TOP=`pwd`
fi
getarch () {
# Translate a MACHINE into a default MACHINE_ARCH.
case $MACHINE in
acorn26|acorn32|cats|netwinder|shark|*arm)
MACHINE_ARCH=arm;;
sun2)
MACHINE_ARCH=m68000;;
amiga|atari|cesfic|hp300|sun3|*68k)
MACHINE_ARCH=m68k;;
mipsco|newsmips|sbmips|sgimips)
MACHINE_ARCH=mipseb;;
algor|arc|cobalt|evbmips|hpcmips|playstation2|pmax)
MACHINE_ARCH=mipsel;;
pc532)
MACHINE_ARCH=ns32k;;
bebox|prep|sandpoint|walnut|*ppc)
MACHINE_ARCH=powerpc;;
evbsh3|mmeye)
MACHINE_ARCH=sh3eb;;
dreamcast|hpcsh)
MACHINE_ARCH=sh3el;;
hp700)
MACHINE_ARCH=hppa;;
evbsh5)
MACHINE_ARCH=sh5el;;
alpha|i386|sparc|sparc64|vax|x86_64)
MACHINE_ARCH=$MACHINE;;
*) bomb "unknown target MACHINE: $MACHINE";;
esac
}
validatearch () {
# Ensure that the MACHINE_ARCH exists (and is supported by build.sh).
case $MACHINE_ARCH in
alpha|arm|armeb|hppa|i386|m68000|m68k|mipse[bl]|ns32k|powerpc|sh[35]e[bl]|sparc|sparc64|vax|x86_64)
;;
*) bomb "unknown target MACHINE_ARCH: $MACHINE_ARCH";;
esac
}
getmakevar () {
$make -m ${TOP}/share/mk -s -f- _x_ <<EOF
_x_:
echo \${$1}
.include <bsd.prog.mk>
EOF
}
resolvepath () {
case $OPTARG in
/*) ;;
*) OPTARG="$TOP/$OPTARG";;
esac
}
usage () {
echo "Usage:"
echo "$0 [-bdorUu] [-a arch] [-B buildid] [-j njob] [-m mach] "
echo " [-w wrapper] [-D dest] [-M obj] [-O obj] [-R release] [-T tools]"
echo ""
echo " -a: set MACHINE_ARCH to arch (otherwise deduced from MACHINE)"
echo " -B: set BUILDID to buildid"
echo " -b: build nbmake and nbmake wrapper script, if needed"
echo " -D: set DESTDIR to dest"
echo " -d: build a full distribution into DESTDIR (including etc files)"
echo " -j: Run up to njob jobs in parallel; see make(1)"
echo " -M: set obj root directory to obj (sets MAKEOBJDIRPREFIX)"
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 obj root directory to obj (sets a MAKEOBJDIR pattern)"
echo " -o: set MKOBJDIRS=no (do not create objdirs at start of build)"
echo " -R: build a release (and set RELEASEDIR to release)"
echo " -r: remove contents of TOOLDIR and DESTDIR before building"
echo " -T: set TOOLDIR to tools"
echo " -t: build and install tools only (implies -b)"
echo " -U: set UNPRIVED"
echo " -u: set UPDATE"
echo " -w: create nbmake script at wrapper (default TOOLDIR/bin/nbmake-MACHINE)"
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
do_buildsystem=true
do_buildonlytools=false
do_rebuildmake=false
do_removedirs=false
makeenv=
makewrapper=
opt_a=no
opts='a:B:bdhj:m:nortuw:D:M:O:R:T:U'
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 or bash"
# 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) eval $optargcmd
BUILDID=$OPTARG;;
-b) do_buildsystem=false;;
-d) buildtarget=distribution;;
-j) eval $optargcmd
parallel="-j $OPTARG";;
# -m overrides MACHINE_ARCH unless "-a" is specified
-m) eval $optargcmd
MACHINE=$OPTARG; [ "$opt_a" != "yes" ] && getarch;;
-n) runcmd=echo;;
-o) MKOBJDIRS=no;;
-r) do_removedirs=true; do_rebuildmake=true;;
-t) do_buildonlytools=true; do_buildsystem=false;;
-U) UNPRIVED=yes; export UNPRIVED
makeenv="$makeenv UNPRIVED";;
-u) UPDATE=yes; export UPDATE
makeenv="$makeenv UPDATE";;
-w) eval $optargcmd; resolvepath
makewrapper="$OPTARG";;
-D) eval $optargcmd; resolvepath
DESTDIR="$OPTARG"; export DESTDIR
makeenv="$makeenv DESTDIR";;
-M) eval $optargcmd; resolvepath
MAKEOBJDIRPREFIX="$OPTARG"; export MAKEOBJDIRPREFIX
makeobjdir=$OPTARG
makeenv="$makeenv MAKEOBJDIRPREFIX";;
-O) eval $optargcmd; resolvepath
MAKEOBJDIR="\${.CURDIR:C,^$TOP,$OPTARG,}"; export MAKEOBJDIR
makeobjdir=$OPTARG
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
validatearch
# Set up default make(1) environment.
makeenv="$makeenv TOOLDIR MACHINE MACHINE_ARCH MAKEFLAGS"
if [ ! -z "$BUILDID" ]; then
makeenv="$makeenv BUILDID"
fi
MAKEFLAGS="-m $TOP/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.
#
# Note that we do NOT try to grovel "mk.conf" here to find out if TOOLDIR
# is set there, because it can contain make variable expansions and other
# stuff only parseable *after* we have a working nbmake. So this logic
# can only work if the user has pre-set TOOLDIR in the environment or
# used the -T option to build.sh.
#
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: $tmpdir"
trap "cd /; rm -r -f \"$tmpdir\"" 0
trap "exit 1" 1 2 3 15
$runcmd cd "$tmpdir"
$runcmd env CC="${HOST_CC-cc}" CPPFLAGS="${HOST_CPPFLAGS}" CFLAGS="${HOST_CFLAGS--O}" LDFLAGS="${HOST_LDFLAGS}" \
"$TOP/tools/make/configure" || bomb "configure of nbmake failed"
$runcmd sh buildmake.sh || bomb "build of nbmake failed"
make="$tmpdir/nbmake"
$runcmd cd "$TOP"
$runcmd rm -f usr.bin/make/*.o usr.bin/make/lst.lib/*.o
fi
EXTERNAL_TOOLCHAIN=`getmakevar EXTERNAL_TOOLCHAIN`
if [ "$runcmd" = "echo" ]; then
TOOLCHAIN_MISSING=no
else
TOOLCHAIN_MISSING=`getmakevar TOOLCHAIN_MISSING`
fi
if [ "${TOOLCHAIN_MISSING}" = "yes" -a \
"${EXTERNAL_TOOLCHAIN}" = "" ]; then
echo "ERROR: build.sh (in-tree cross-toolchain) is not yet available for"
echo
echo "MACHINE: ${MACHINE}"
echo "MACHINE_ARCH: ${MACHINE_ARCH}"
echo
echo "All builds for this platform should be done via a traditional make"
echo
echo "If you wish to use an external cross-toolchain, set"
echo
echo "EXTERNAL_TOOLCHAIN=<path to toolchain root>"
echo
echo "in either the environment or mk.conf and rerun"
echo
echo "$0 $*"
exit 1
fi
# If TOOLDIR isn't already set, make objdirs in "tools" in case the
# default setting from <bsd.own.mk> is used.
if [ -z "$TOOLDIR" ] && [ "$MKOBJDIRS" != "no" ]; then
$runcmd cd tools
$runcmd $make -m ${TOP}/share/mk obj NOSUBDIR= || exit 1
$runcmd cd ..
fi
#
# If setting -M or -O to root an obj dir make sure the base directory is made
# before continuing as bsd.own.mk will need this to pick up _SRC_TOP_OBJ_
#
if [ "$MKOBJDIRS" != "no" ] && [ ! -z "$makeobjdir" ]; then
$runcmd mkdir -p "$makeobjdir"
fi
# Find DESTDIR and TOOLDIR.
if [ "$runcmd" = "echo" ]; then
# shown symbolically with -n because these may come from mk.conf
DESTDIR='$DESTDIR'
TOOLDIR='$TOOLDIR'
else
DESTDIR=`getmakevar DESTDIR`;
[ $? = 0 ] || bomb "getmakevar DESTDIR failed";
echo "===> DESTDIR path: $DESTDIR"
TOOLDIR=`getmakevar TOOLDIR`;
[ $? = 0 ] || bomb "getmakevar TOOLDIR failed";
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" != "build" ] || \
[ "`uname -s 2>/dev/null`" != "NetBSD" ] || \
[ "`uname -m`" != "$MACHINE" ]); then
bomb "DESTDIR must be set to a non-root path for cross builds or -d 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.
$runcmd mkdir -p "$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-$MACHINE"
if [ ! -z "$BUILDID" ]; then
makewrapper="$makewrapper-$BUILDID"
fi
fi
$runcmd rm -f "$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 1.69 2002/10/02 16:57:29 thorpej Exp $
#
EOF
for f in $makeenv; do
eval echo "$f=\'\$`echo $f`\'\;\ export\ $f" $makewrapout
done
eval echo "USETOOLS=yes\; export USETOOLS" $makewrapout
eval cat <<'EOF' $makewrapout
exec "$TOOLDIR/bin/nbmake" ${1+"$@"}
EOF
[ "$runcmd" = "echo" ] && echo EOF
$runcmd chmod +x "$makewrapper"
if $do_buildsystem; then
${runcmd-exec} "$makewrapper" $parallel $buildtarget
elif $do_buildonlytools; then
if [ "$MKOBJDIRS" != "no" ]; then
$runcmd "$makewrapper" $parallel obj-tools || exit 1
fi
$runcmd cd tools
if [ "$UPDATE" = "" ]; then
${runcmd-exec} "$makewrapper" cleandir dependall install
else
${runcmd-exec} "$makewrapper" dependall install
fi
fi