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| -rwxr-xr-x | scripts/mcm-buildall.sh | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/scripts/mcm-buildall.sh b/scripts/mcm-buildall.sh new file mode 100755 index 00000000..7197f8d3 --- /dev/null +++ b/scripts/mcm-buildall.sh @@ -0,0 +1,151 @@ +#!/bin/bash + +# Script to build all supported cross and native compilers using +# https://github.com/richfelker/musl-cross-make +# (Check that out and run this script in that directory.) + +# This isn't directly used by toybox, but is useful for testing. + +# All toolchains after the first are themselves cross compiled (so they +# can be statically linked against musl on the host, for binary portability.) +# static i686 binaries are basically "poor man's x32". +BOOTSTRAP=i686-linux-musl + +[ -z "$OUTPUT" ] && OUTPUT="$PWD/ccc" + +if [ "$1" == clean ] +then + rm -rf "$OUTPUT" host-* *.log + make clean + exit +fi + +make_toolchain() +{ + # Set cross compiler path + LP="$PATH" + if [ -z "$TYPE" ] + then + OUTPUT="$PWD/host-$TARGET" + EXTRASUB=y + else + if [ "$TYPE" == static ] + then + HOST=$BOOTSTRAP + [ "$TARGET" = "$HOST" ] && LP="$PWD/host-$HOST/bin:$LP" + TYPE=cross + EXTRASUB=y + LP="$OUTPUT/$HOST-cross/bin:$LP" + else + HOST="$TARGET" + export NATIVE=y + LP="$OUTPUT/${RENAME:-$TARGET}-cross/bin:$LP" + fi + COMMON_CONFIG="CC=\"$HOST-gcc -static --static\" CXX=\"$HOST-g++ -static --static\"" + export -n HOST + OUTPUT="$OUTPUT/${RENAME:-$TARGET}-$TYPE" + fi + + if [ -e "$OUTPUT.sqf" ] || [ -e "$OUTPUT/bin/$TARGET-ld" ] || + [ -e "$OUTPUT/bin/ld" ] + then + return + fi + + # Change title bar to say what we're currently building + + echo === building $TARGET-$TYPE + echo -en "\033]2;$TARGET-$TYPE\007" + + rm -rf build/"$TARGET" "$OUTPUT" && + if [ -z "$CPUS" ] + then + CPUS="$(nproc)" + [ "$CPUS" != 1 ] && CPUS=$(($CPUS+1)) + fi + set -x && + PATH="$LP" make OUTPUT="$OUTPUT" TARGET="$TARGET" \ + GCC_CONFIG="--disable-nls --disable-libquadmath --disable-decimal-float --disable-multilib --enable-languages=c,c++ $GCC_CONFIG" \ + COMMON_CONFIG="CFLAGS=\"$CFLAGS -g0 -Os\" CXXFLAGS=\"$CXXFLAGS -g0 -Os\" LDFLAGS=\"$LDFLAGS -s\" $COMMON_CONFIG" \ + install -j$CPUS || exit 1 + set +x + echo -e '#ifndef __MUSL__\n#define __MUSL__ 1\n#endif' \ + >> "$OUTPUT/${EXTRASUB:+$TARGET/}include/features.h" + + if [ ! -z "$RENAME" ] && [ "$TYPE" == cross ] + then + CONTEXT="output/$RENAME-cross/bin" + for i in "$CONTEXT/$TARGET-"* + do + X="$(echo $i | sed "s@.*/$TARGET-\([^-]*\)@\1@")" + ln -sf "$TARGET-$X" "$CONTEXT/$RENAME-$X" + done + fi + + # Prevent cross compiler reusing dynamically linked host build files for + # $BOOTSTRAP arch + [ -z "$TYPE" ] && make clean + + if [ "$TYPE" == native ] + then + # gcc looks in "../usr/include" but not "/bin/../include" (relative to the + # executable). That means /usr/bin/gcc looks in /usr/usr/include, so that's + # not a fix either. So add a NOP symlink as a workaround for The Crazy. + ln -s . "$OUTPUT/usr" || exit 1 + [ ! -z "$(which mksquashfs 2>/dev/null)" ] && + mksquashfs "$OUTPUT" "$OUTPUT.sqf" -all-root && + [ -z "$CLEANUP" ] && rm -rf "$OUTPUT" + fi +} + +# Expand compressed target into binutils/gcc "tuple" and call make_toolchain +make_tuple() +{ + PART1=${1/:*/} + PART3=${1/*:/} + PART2=${1:$((${#PART1}+1)):$((${#1}-${#PART3}-${#PART1}-2))} + + # Do we need to rename this toolchain after building it? + RENAME=${PART1/*@/} + [ "$RENAME" == "$PART1" ] && RENAME= + PART1=${PART1/@*/} + TARGET=${PART1}-linux-musl${PART2} + + [ -z "$NOCLEAN" ] && rm -rf build + + for TYPE in static native + do + TYPE=$TYPE TARGET=$TARGET GCC_CONFIG="$PART3" RENAME="$RENAME" \ + make_toolchain 2>&1 | tee "$OUTPUT"/log/${RENAME:-$PART1}-${TYPE}.log + done +} + +mkdir -p "$OUTPUT"/log + +# Make bootstrap compiler (no $TYPE, dynamically linked against host libc) +# We build the rest of the cross compilers with this so they're linked against +# musl-libc, because glibc doesn't fully support static linking and dynamic +# binaries aren't really portable between distributions +TARGET=$BOOTSTRAP make_toolchain 2>&1 | tee -a "$OUTPUT/log/$BOOTSTRAP"-host.log + +if [ $# -gt 0 ] +then + for i in "$@" + do + make_tuple "$i" + done +else + # First target builds a proper version of the $BOOTSTRAP compiler above, + # used to build the rest (which are in alphabetical order) + for i in i686:: \ + aarch64:eabi: armv4l:eabihf:"--with-arch=armv5t --with-float=soft" \ + armv5l:eabihf:--with-arch=armv5t armv7l:eabihf:--with-arch=armv7-a \ + "armv7m:eabi:--with-arch=armv7-m --with-mode=thumb --disable-libatomic --enable-default-pie" \ + armv7r:eabihf:"--with-arch=armv7-r --enable-default-pie" \ + i486:: m68k:: microblaze:: mips:: mips64:: mipsel:: powerpc:: \ + powerpc64:: powerpc64le:: s390x:: sh2eb:fdpic:--with-cpu=mj2 \ + sh4::--enable-incomplete-targets x86_64:: x86_64@x32:x32: + do + make_tuple "$i" + done +fi |