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Annotation of src/build.sh, Revision 1.17

1.1       tv          1: #! /bin/sh
1.17    ! thorpej     2: #  $NetBSD: build.sh,v 1.16 2001/11/01 00:14:17 thorpej Exp $
1.1       tv          3: #
                      4: # Top level build wrapper, for a system containing no tools.
                      5: #
                      6: # This script should run on any POSIX-compliant shell.  For systems
                      7: # with a strange /bin/sh, "ksh" may be an ample alternative.
                      8: #
                      9:
                     10: bomb () {
                     11:        echo ""
                     12:        echo "ERROR: $@"
                     13:        echo "*** BUILD ABORTED ***"
                     14:        exit 1
                     15: }
1.15      tv         16: [ -d usr.bin/make ] || bomb "build.sh must be run from the top source level"
1.1       tv         17:
                     18: getarch () {
                     19:        # Translate a MACHINE into a default MACHINE_ARCH.
                     20:        case $MACHINE in
1.13      reinoud    21:                arm26|dnard|evbarm|hpcarm|netwinder)
1.1       tv         22:                        MACHINE_ARCH=arm;;
                     23:
1.13      reinoud    24:                acorn32|arm32|cats)
1.5       bjh21      25:                        MACHINE_ARCH=arm32;;
                     26:
1.1       tv         27:                sun2)
                     28:                        MACHINE_ARCH=m68000;;
                     29:
                     30:                amiga|atari|cesfic|hp300|sun3|*68k)
                     31:                        MACHINE_ARCH=m68k;;
                     32:
                     33:                mipsco|newsmips|sgimips)
                     34:                        MACHINE_ARCH=mipseb;;
                     35:
                     36:                algor|arc|cobalt|hpcmips|playstation2|pmax)
                     37:                        MACHINE_ARCH=mipsel;;
                     38:
                     39:                pc532)
                     40:                        MACHINE_ARCH=ns32k;;
                     41:
                     42:                bebox|prep|sandpoint|walnut|*ppc)
                     43:                        MACHINE_ARCH=powerpc;;
                     44:
                     45:                mmeye)
                     46:                        MACHINE_ARCH=sh3eb;;
                     47:
                     48:                dreamcast|evbsh3|hpcsh)
                     49:                        MACHINE_ARCH=sh3el;;
                     50:
1.5       bjh21      51:                alpha|i386|sparc|sparc64|vax|x86_64)
1.4       tv         52:                        MACHINE_ARCH=$MACHINE;;
                     53:
                     54:                *)      bomb "unknown target MACHINE: $MACHINE";;
1.1       tv         55:        esac
                     56: }
                     57:
1.15      tv         58: getmakevar () {
                     59:        cat <<EOF | $make -s -f- $makeflags _x_
                     60: _x_:
                     61:        echo \${$1}
                     62: .include <bsd.prog.mk>
                     63: EOF
                     64: }
                     65:
1.4       tv         66: # Emulate "mkdir -p" for systems that have an Old "mkdir".
                     67: mkdirp () {
                     68:        IFS=/; set -- $@; unset IFS
                     69:        _d=
1.15      tv         70:        if [ -z "$1" ]; then _d=/; shift; fi
1.4       tv         71:
                     72:        for _f in "$@"; do
1.15      tv         73:                if [ -n "$_f" ]; then
1.10      tv         74:                        [ -d "$_d$_f" ] || $runcmd mkdir "$_d$_f" || return 1
1.4       tv         75:                        _d="$_d$_f/"
                     76:                fi
                     77:        done
                     78: }
                     79:
1.10      tv         80: resolvepath () {
                     81:        case $OPTARG in
                     82:        /*)     ;;
                     83:        *)      OPTARG="$cwd/$OPTARG";;
                     84:        esac
                     85: }
                     86:
1.1       tv         87: usage () {
                     88:        echo "Usage:"
1.15      tv         89:        echo "$0 [-boru] [-a arch] [-j njob] -m mach [-w wrapper]"
1.12      tv         90:        echo "   [-D dest] [-O obj] [-R release] [-T tools]"
1.4       tv         91:        echo ""
1.15      tv         92:        echo "    -a: set MACHINE_ARCH to arch (otherwise deduced from MACHINE)"
                     93:        echo "    -b: build nbmake and nbmake wrapper script, if needed"
1.3       tv         94:        echo "    -j: set NBUILDJOBS to njob"
1.15      tv         95:        echo "    -m: set MACHINE to mach (not required if NetBSD native)"
1.12      tv         96:        echo "    -n: show commands that would be executed, but do not execute them"
1.15      tv         97:        echo "    -o: set MKOBJDIRS=no (do not create objdirs at start of build)"
                     98:        echo "    -r: remove contents of TOOLDIR and DESTDIR before building"
1.16      thorpej    99:        echo "    -t: build and install tools only (implies -b)"
1.15      tv        100:        echo "    -u: set UPDATE (overrides mk.conf)"
                    101:        echo "    -w: create nbmake script at wrapper (default TOOLDIR/bin/nbmake-MACHINE)"
                    102:        echo "    -D: set DESTDIR to dest (overrides mk.conf)"
1.12      tv        103:        echo "    -O: set obj root directory to obj (sets a MAKEOBJDIR pattern)"
1.15      tv        104:        echo "    -R: build a release (and set RELEASEDIR to release)"
                    105:        echo "    -T: set TOOLDIR to tools (overrides mk.conf)"
                    106:        echo ""
                    107:        echo "Note: if -T is unset and TOOLDIR is not set in the environment,"
                    108:        echo "      nbmake will be [re]built unconditionally."
1.1       tv        109:        exit 1
                    110: }
                    111:
1.10      tv        112: # Set defaults.
1.12      tv        113: buildtarget=build
1.10      tv        114: cwd=`pwd`
                    115: do_buildsystem=true
1.16      thorpej   116: do_buildonlytools=false
1.10      tv        117: do_rebuildmake=false
                    118: do_removedirs=false
1.15      tv        119: makeenv='exec'
                    120: makeflags=''
                    121: makewrapper=''
1.10      tv        122: opt_a=no
1.16      thorpej   123: opts='a:bhj:m:nortuw:D:O:R:T:'
1.10      tv        124: runcmd=''
1.4       tv        125:
                    126: if type getopts >/dev/null 2>&1; then
                    127:        # Use POSIX getopts.
                    128:        getoptcmd='getopts $opts opt && opt=-$opt'
                    129:        optargcmd=':'
                    130: else
                    131:        type getopt >/dev/null 2>&1 || bomb "/bin/sh shell is too old; try ksh"
1.2       tv        132:
1.4       tv        133:        # Use old-style getopt(1) (doesn't handle whitespace in args).
                    134:        args="`getopt $opts $*`"
                    135:        [ $? = 0 ] || usage
                    136:        set -- $args
1.1       tv        137:
1.4       tv        138:        getoptcmd='[ $# -gt 0 ] && opt="$1" && shift'
                    139:        optargcmd='OPTARG="$1"; shift'
                    140: fi
1.10      tv        141:
                    142: # Parse command line options.
1.4       tv        143: while eval $getoptcmd; do case $opt in
                    144:        -a)     eval $optargcmd
                    145:                MACHINE_ARCH=$OPTARG; opt_a=yes;;
1.1       tv        146:
1.10      tv        147:        -b)     do_buildsystem=false;;
1.9       jmc       148:
1.4       tv        149:        -j)     eval $optargcmd
1.15      tv        150:                makeflags="$makeflags NBUILDJOBS=$OPTARG";;
1.1       tv        151:
1.4       tv        152:        # -m overrides MACHINE_ARCH unless "-a" is specified
                    153:        -m)     eval $optargcmd
                    154:                MACHINE=$OPTARG; [ "$opt_a" != "yes" ] && getarch;;
1.3       tv        155:
1.10      tv        156:        -n)     runcmd=echo;;
                    157:
1.12      tv        158:        -o)     MKOBJDIRS=no;;
                    159:
1.10      tv        160:        -r)     do_removedirs=true; do_rebuildmake=true;;
1.1       tv        161:
1.16      thorpej   162:        -t)     do_buildonlytools=true; do_buildsystem=false;;
                    163:
1.15      tv        164:        -u)     makeflags="$makeflags UPDATE=yes";;
                    165:
                    166:        -w)     eval $optargcmd; resolvepath
                    167:                makewrapper="$OPTARG";;
1.12      tv        168:
1.10      tv        169:        -D)     eval $optargcmd; resolvepath
1.15      tv        170:                makeflags="$makeflags DESTDIR='$OPTARG'";;
1.4       tv        171:
1.12      tv        172:        -O)     eval $optargcmd; resolvepath
1.15      tv        173:                makeenv="env MAKEOBJDIR='\${.CURDIR:C,^$cwd,$OPTARG,}'"
                    174:                MAKEOBJDIR="\${.CURDIR:C,^$cwd,$OPTARG,}"; export MAKEOBJDIR
                    175:                execcmd='';;
1.12      tv        176:
1.10      tv        177:        -R)     eval $optargcmd; resolvepath
1.15      tv        178:                makeflags="$makeflags RELEASEDIR=$OPTARG"
                    179:                buildtarget=release;;
1.4       tv        180:
1.10      tv        181:        -T)     eval $optargcmd; resolvepath
1.15      tv        182:                TOOLDIR="$OPTARG"
                    183:                makeflags="$makeflags TOOLDIR='$TOOLDIR'";;
1.4       tv        184:
                    185:        --)             break;;
                    186:        -'?'|-h)        usage;;
1.1       tv        187: esac; done
                    188:
1.15      tv        189: # Set up MACHINE*.  On a NetBSD host, these are allowed to be unset.
                    190: if [ -z "$MACHINE" ]; then
                    191:        if [ "`uname -s 2>/dev/null`" != "NetBSD" ]; then
                    192:                echo "MACHINE must be set, or -m must be used, for cross builds."
1.4       tv        193:                echo ""; usage
                    194:        fi
1.15      tv        195:        MACHINE=`uname -m`
                    196: fi
1.10      tv        197: [ -n "$MACHINE_ARCH" ] || getarch
1.3       tv        198:
1.15      tv        199: # Set up default make(1) environment.
                    200: makeflags="-m $cwd/share/mk $makeflags \
                    201:        MACHINE=$MACHINE MACHINE_ARCH=$MACHINE_ARCH \
                    202:        MKOBJDIRS=${MKOBJDIRS-yes}"
                    203:
                    204: # Test make source file timestamps against installed nbmake binary,
                    205: # if TOOLDIR is pre-set.
                    206: make=${TOOLDIR-nonexistent}/bin/nbmake
                    207: if [ -x $make ]; then
1.1       tv        208:        for f in usr.bin/make/*.[ch] usr.bin/make/lst.lib/*.[ch]; do
1.15      tv        209:                if [ $f -nt $make ]; then
1.10      tv        210:                        do_rebuildmake=true; break
1.1       tv        211:                fi
                    212:        done
                    213: else
1.10      tv        214:        do_rebuildmake=true
1.1       tv        215: fi
                    216:
1.15      tv        217: # Build bootstrap nbmake if needed.
1.10      tv        218: if $do_rebuildmake; then
1.15      tv        219:        echo "===> Bootstrapping nbmake"
1.4       tv        220:        tmpdir=${TMPDIR-/tmp}/nbbuild$$
                    221:
1.10      tv        222:        $runcmd mkdir $tmpdir || bomb "cannot mkdir: $tmpdir"
1.4       tv        223:        trap "rm -r -f $tmpdir" 0
                    224:        trap "exit 1" 1 2 3 15
1.10      tv        225:        $runcmd cd $tmpdir
1.1       tv        226:
1.12      tv        227:        $runcmd ${HOST_CC-cc} ${HOST_CFLAGS} -DMAKE_BOOTSTRAP \
1.15      tv        228:                -o nbmake -I$cwd/usr.bin/make \
1.12      tv        229:                $cwd/usr.bin/make/*.c $cwd/usr.bin/make/lst.lib/*.c \
1.4       tv        230:                || bomb "build of nbmake failed"
1.1       tv        231:
1.15      tv        232:        make=$tmpdir/nbmake
1.10      tv        233:        $runcmd cd $cwd
1.15      tv        234:        $runcmd rm -f usr.bin/make/*.o usr.bin/make/lst.lib/*.o
                    235: fi
                    236:
                    237: # If TOOLDIR isn't already set, make objdirs in "tools" in case the
                    238: # default setting from <bsd.own.mk> is used.
                    239: if [ -z "$TOOLDIR" ] && [ "$MKOBJDIRS" != "no" ]; then
                    240:        $runcmd $make $makeflags obj-tools || exit 1
                    241: fi
                    242:
                    243: # Find DESTDIR and TOOLDIR.
                    244: if [ "$runcmd" = "echo" ]; then
                    245:        DESTDIR='$DESTDIR'
                    246:        TOOLDIR='$TOOLDIR'
                    247: else
                    248:        DESTDIR=`getmakevar DESTDIR`; echo "===> DESTDIR path: $DESTDIR"
                    249:        TOOLDIR=`getmakevar TOOLDIR`; echo "===> TOOLDIR path: $TOOLDIR"
                    250: fi
                    251:
                    252: # Check validity of TOOLDIR and DESTDIR.
                    253: if [ -z "$TOOLDIR" ] || [ "$TOOLDIR" = "/" ]; then
                    254:        bomb "TOOLDIR '$TOOLDIR' invalid"
                    255: fi
                    256: removedirs="$TOOLDIR"
                    257:
                    258: if [ -z "$DESTDIR" ] || [ "$DESTDIR" = "/" ]; then
1.16      thorpej   259:        if $do_buildsystem && \
                    260:           ([ "$buildtarget" = "release" ] || \
                    261:            [ "`uname -s 2>/dev/null`" != "NetBSD" ] || \
                    262:            [ "`uname -m`" != "$MACHINE" ]); then
1.15      tv        263:                bomb "DESTDIR must be set to a non-root path for cross builds or -R."
1.16      thorpej   264:        elif $do_buildsystem; then
                    265:                echo "===> WARNING: Building to /."
                    266:                echo "===> If your kernel is not up to date, this may cause the system to break!"
1.15      tv        267:        fi
                    268: else
                    269:        removedirs="$removedirs $DESTDIR"
                    270: fi
                    271:
                    272: # Remove the target directories.
                    273: if $do_removedirs; then
                    274:        for f in $removedirs; do
                    275:                echo "===> Removing $f"
                    276:                $runcmd rm -r -f $f
                    277:        done
                    278: fi
                    279:
                    280: # Recreate $TOOLDIR.
                    281: mkdirp $TOOLDIR/bin || bomb "mkdir of $TOOLDIR/bin failed"
                    282:
                    283: # Install nbmake if it was built.
                    284: if $do_rebuildmake; then
                    285:        $runcmd rm -f $TOOLDIR/bin/nbmake
                    286:        $runcmd cp $make $TOOLDIR/bin/nbmake
1.10      tv        287:        $runcmd rm -r -f $tmpdir
1.4       tv        288:        trap 0 1 2 3 15
1.1       tv        289: fi
                    290:
1.4       tv        291: # Build a nbmake wrapper script, usable by hand as well as by build.sh.
1.15      tv        292: if [ -z "$makewrapper" ]; then
                    293:        makewrapper=$TOOLDIR/bin/nbmake-$MACHINE
                    294: fi
1.4       tv        295:
1.15      tv        296: if $do_rebuildmake || [ ! -f $makewrapper ] || [ $makewrapper -ot build.sh ]; then
                    297:        rm -f $makewrapper
1.10      tv        298:        if [ "$runcmd" = "echo" ]; then
1.15      tv        299:                mkscriptcmd='echo "cat >$makewrapper <<EOF" && cat'
1.10      tv        300:        else
1.15      tv        301:                mkscriptcmd="cat >$makewrapper"
1.10      tv        302:        fi
                    303:        eval $mkscriptcmd <<EOF
1.4       tv        304: #! /bin/sh
                    305: # Set proper variables to allow easy "make" building of a NetBSD subtree.
1.17    ! thorpej   306: # Generated from:  \$NetBSD: build.sh,v 1.16 2001/11/01 00:14:17 thorpej Exp $
1.4       tv        307: #
1.15      tv        308: $makeenv $TOOLDIR/bin/nbmake $makeflags \${1+\$@}
1.4       tv        309: EOF
1.10      tv        310:        [ "$runcmd" = "echo" ] && echo EOF
1.15      tv        311:        $runcmd chmod +x $makewrapper
1.4       tv        312: fi
                    313:
1.10      tv        314: if $do_buildsystem; then
1.15      tv        315:        ${runcmd-exec} $makewrapper $buildtarget
1.16      thorpej   316: elif $do_buildonlytools; then
                    317:        if [ "$MKOBJDIRS" != "no" ]; then
1.17    ! thorpej   318:                $make $makeflags obj-tools || exit 1
1.16      thorpej   319:        fi
                    320:        ${runcmd-exec} sh -c "cd tools && \
1.17    ! thorpej   321:            $make $makeflags MKTOOLS=always build"
1.9       jmc       322: fi

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