329 lines
10 KiB
Bash
Executable File
329 lines
10 KiB
Bash
Executable File
#!/bin/bash
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# Script to build all cross and native compilers supported by musl-libc.
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# This isn't directly used by toybox, but is useful for testing.
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trap "exit 1" INT
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if [ ! -d litecross ]
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then
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echo Run this script in musl-cross-make directory to make "ccc" directory.
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echo
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echo " "git clone https://github.com/richfelker/musl-cross-make
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echo " "cd musl-cross-make
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echo ' ~/toybox/scripts/mcm-buildall.sh'
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exit 1
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fi
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# List of known targets. The format is TARGET[@RENAME]:EXTRA:CONFIG resulting
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# in a gcc tuple TARGET-linux-muslEXTRA with CONFIG appended to $GCC_CONFIG
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# (and thus the gcc ./configure command line). So i686:: builds i686-linux-musl
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# and sh2eb::fdpic:--with-cpu=mj2 builds sh2eb-linux-muslfdpic adding
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# --with-cpu=mj2 to the gcc ./configure command line. @RENAME (if present)
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# changes the TARGET part of the toolchain prefix names afterwards.
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TARGETS=(i686:: aarch64:eabi:
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armv4l:eabihf:"--with-arch=armv5t --with-float=soft"
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"armv5l:eabihf:--with-arch=armv5t --with-fpu=vfpv2 --with-float=hard"
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"armv7l:eabihf:--with-arch=armv7-a --with-fpu=vfpv3-d16 --with-float=hard"
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"armv7m:eabi:--with-arch=armv7-m --with-mode=thumb --disable-libatomic --enable-default-pie"
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armv7r:eabihf:"--with-arch=armv7-r --enable-default-pie"
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i486:: m68k:: microblaze:: mips:: mips64:: mipsel:: or1k:: powerpc::
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powerpc64:: powerpc64le:: riscv32:: riscv64:: s390x::
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sh2eb:fdpic:--with-cpu=mj2
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sh4::--enable-incomplete-targets sh4eb::--enable-incomplete-targets
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x86_64::--with-mtune=nocona x86_64@x32:x32:
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)
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# All toolchains after the first are themselves cross compiled (so they
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# can be statically linked against musl on the host, for binary portability.)
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: ${BOOTSTRAP:=$(uname -m)} ${OUTPUT:="$PWD/ccc"}
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# Move the corresponding target to the front so rest of targets get built
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# with full instead of partial -host compiler (missing threads and NLS and such)
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unset TEMP
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for i in $(seq 0 $((${#TARGETS[@]}-1)));
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do
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[ "${TARGETS[$i]}" == "${TARGETS[$i]#"$BOOTSTRAP:"}" ] && continue
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TEMP="${TARGETS[$i]}"
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TARGETS[$i]="$TARGETS[0]"
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TARGETS[0]="$TEMP"
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break;
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done
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[ -z "$TEMP" ] && { echo unknown target "$BOOTSTRAP"; exit 1; }
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if [ "$1" == clean ]
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then
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rm -rf ccc host-* *.log # Not gonna rm -rf "$OUTPUT" blindly, could be $HOME
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make clean
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exit
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fi
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make_toolchain()
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{
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# Set cross compiler path
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LP="$PATH"
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if [ "$TYPE" == host ]
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then
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OUTPUT="$PWD/host-$TARGET"
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EXTRASUB=y
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else
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if [ "$TYPE" == static ]
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then
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HOST=$BOOTSTRAP
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[ "$TARGET" = "$HOST" ] && LP="$PWD/host-$HOST/bin:$LP" &&
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GCC_CONFIG="--build=${TARGET%%-*}-donotmatch-linux $GCC_CONFIG"
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TYPE=cross
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EXTRASUB=y
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LP="$OUTPUT/$HOST-cross/bin:$LP"
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else
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HOST="$TARGET"
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export NATIVE=y
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LP="$OUTPUT/${RENAME:-$TARGET}-cross/bin:$LP"
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[ -z "$(PATH="$LP" which $TARGET-cc)" ] &&
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echo "no $TARGET-cc in $LP" && return
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fi
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COMMON_CONFIG="CC=\"$HOST-gcc -static --static\" CXX=\"$HOST-g++ -static --static\""
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export -n HOST
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OUTPUT="$OUTPUT/${RENAME:-$TARGET}-$TYPE"
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fi
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# Skip outputs that already exist
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if [ -e "$OUTPUT.sqf" ] || [ -e "$OUTPUT/bin/$TARGET-cc" ] ||
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[ -e "$OUTPUT/bin/cc" ]
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then
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return
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fi
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# Change title bar to say what we're currently building
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echo === building $TARGET-$TYPE
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echo -en "\033]2;$TARGET-$TYPE\007"
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rm -rf build/"$TARGET" "$OUTPUT" &&
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set -x &&
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PATH="$LP" make OUTPUT="$OUTPUT" TARGET="$TARGET" \
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GCC_CONFIG="--disable-nls --disable-libquadmath --disable-decimal-float --disable-multilib --enable-languages=c,c++ $GCC_CONFIG" \
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COMMON_CONFIG="CFLAGS=\"$CFLAGS -g0 -O2\" CXXFLAGS=\"$CXXFLAGS -g0 -O2\" \
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LDFLAGS=\"$LDFLAGS -s\" $COMMON_CONFIG" install -j$(nproc) || exit 1
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set +x
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echo -e '#ifndef __MUSL__\n#define __MUSL__ 1\n#endif' \
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>> "$OUTPUT/${EXTRASUB:+$TARGET/}include/features.h"
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if [ ! -z "$RENAME" ] && [ "$TYPE" == cross ]
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then
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CONTEXT="output/$RENAME-cross/bin"
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for i in "$CONTEXT/$TARGET-"*
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do
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X="$(echo $i | sed "s@.*/$TARGET-\([^-]*\)@\1@")"
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ln -sf "$TARGET-$X" "$CONTEXT/$RENAME-$X"
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done
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fi
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# Prevent cross compiler reusing dynamically linked host build files for
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# $BOOTSTRAP arch
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[ -z "$TYPE" ] && {
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[ -e musl-git-master ] && mv musl-git-master keep-this-dir
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make clean
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[ -e keep-this-dir ] && mv keep-this-dir musl-git-master
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}
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if [ "$TYPE" == native ]
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then
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# gcc looks in "../usr/include" but not "/bin/../include" (relative to the
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# executable). That means /usr/bin/gcc looks in /usr/usr/include, so that's
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# not a fix either. So add a NOP symlink as a workaround for The Crazy.
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ln -s . "$OUTPUT/usr" || exit 1
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[ ! -z "$(which mksquashfs 2>/dev/null)" ] &&
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mksquashfs "$OUTPUT" "$OUTPUT.sqf" -all-root &&
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[ -z "$CLEANUP" ] && rm -rf "$OUTPUT"
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fi
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}
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split_tuple()
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{
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PART1=${1/:*/}
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PART3=${1/*:/}
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PART2=${1:$((${#PART1}+1)):$((${#1}-${#PART3}-${#PART1}-2))}
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# Do we need to rename this toolchain after building it?
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RENAME=${PART1/*@/}
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[ "$RENAME" == "$PART1" ] && RENAME=
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PART1=${PART1/@*/}
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TARGET=${PART1}-linux-musl${PART2}
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}
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# Expand compressed target into binutils/gcc "tuple" and call make_toolchain
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make_tuple()
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{
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split_tuple "$@"
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[ -z "$NOCLEAN" ] && rm -rf build
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for TYPE in "${@:2}"
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do
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TYPE=$TYPE TARGET=$TARGET GCC_CONFIG="$PART3" RENAME="$RENAME" \
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make_toolchain 2>&1 | tee "$OUTPUT"/log/${RENAME:-$PART1}-${TYPE}.log
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done
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}
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patch_mcm()
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{
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# musl-cross-make commit fe915821b652 has been current for a year and a half,
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# and doesn't even use the latest musl release by default, so fix it up.
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# Select newer package versions and don't use dodgy mirrors
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sed -i 's/mirror//;s/\(LINUX_VER =\).*/\1 6.8/;s/\(GCC_VER =\).*/\1 11.2.0/' \
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Makefile &&
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echo 'c9ab5b95c0b8e9e41290d3fc53b4e5cb2e8abb75 linux-6.8.tar.xz' > \
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hashes/linux-6.8.tar.xz.sha1 &&
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# mcm redundantly downloads tarball if hash file has newer timestamp,
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# and it whack-a-moles how to download kernels by version for some reason.
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touch -d @1 hashes/linux-6.8.tar.xz.sha1 &&
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sed -i 's/\(.*linux-\)3\(.*\)v3.x/\16\2v6.x/' Makefile &&
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# nommu toolchains need to vfork()+pipe, and or1k has different kernel arch
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sed -i -e 's/--enable-fdpic$/& --enable-twoprocess/' \
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-e '/or1k/!s/^\(TARGET_ARCH_MANGLED = \)\(.*\)/\1$(patsubst or1k,openrisc,\2)/' \
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litecross/Makefile &&
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# Packages detect nommu via the absence of fork(). Musl provides a broken
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# fork() on nommu builds that always returns -ENOSYS at runtime. Rip it out.
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# (Currently only for superh/jcore since no generic #ifdef __FDPIC__ symbol.)
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PP=patches/musl-"$(sed -n 's/MUSL_VER[ \t]*=[ \t]*//p' Makefile)" &&
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mkdir -p "$PP" &&
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cat > "$PP"/0001-nommu.patch << 'EOF' &&
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--- a/src/legacy/daemon.c
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+++ b/src/legacy/daemon.c
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@@ -17,3 +17,3 @@
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- switch(fork()) {
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+ switch(vfork()) {
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case 0: break;
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@@ -25,3 +25,3 @@
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- switch(fork()) {
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+ switch(vfork()) {
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case 0: break;
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--- a/src/misc/forkpty.c
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+++ b/src/misc/forkpty.c
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@@ -8,2 +8,3 @@
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+#ifndef __SH_FDPIC__
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int forkpty(int *pm, char *name, const struct termios *tio, const struct winsize *ws)
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@@ -57,1 +58,2 @@
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}
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+#endif
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--- a/src/misc/wordexp.c
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+++ b/src/misc/wordexp.c
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@@ -25,2 +25,3 @@
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+#ifndef __SH_FDPIC__
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static int do_wordexp(const char *s, wordexp_t *we, int flags)
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@@ -177,2 +178,3 @@
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}
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+#endif
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--- a/src/process/fork.c
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+++ b/src/process/fork.c
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@@ -7,2 +7,3 @@
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+#ifndef __SH_FDPIC__
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static void dummy(int x)
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@@ -37,1 +38,2 @@
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}
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+#endif
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--- a/Makefile
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+++ b/Makefile
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@@ -100,3 +100,3 @@
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cp $< $@
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- sed -n -e s/__NR_/SYS_/p < $< >> $@
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+ sed -e s/__NR_/SYS_/ < $< >> $@
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--- a/arch/sh/bits/syscall.h.in
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+++ b/arch/sh/bits/syscall.h.in
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@@ -2,3 +2,5 @@
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#define __NR_exit 1
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+#ifndef __SH_FDPIC__
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#define __NR_fork 2
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+#endif
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#define __NR_read 3
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EOF
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# I won't sign the FSF's copyright assignment
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tee $(for i in patches/gcc-*; do echo $i/099-vfork.patch; done) > /dev/null << 'EOF'
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--- gcc-8.3.0/fixincludes/procopen.c 2005-08-14 19:50:43.000000000 -0500
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+++ gcc-bak/fixincludes/procopen.c 2020-02-06 23:27:15.408071708 -0600
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@@ -116,3 +116,3 @@
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*/
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- ch_id = fork ();
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+ ch_id = vfork ();
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switch (ch_id)
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EOF
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# Fix a gcc bug that breaks x86-64 build in gcc 11.2.0,
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# from https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100017#c20
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PP=patches/gcc-"$(sed -n 's/GCC_VER[ \t]*=[ \t]*//p' Makefile)" &&
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mkdir -p "$PP" &&
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cat > "$PP"/0006-fixinc.patch << 'EOF' &&
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diff -ruN gcc-11.2.0.orig/configure gcc-11.2.0/configure
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--- gcc-11.2.0.orig/configure 2021-07-28 01:55:06.628278148 -0500
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+++ gcc-11.2.0/configure 2023-11-17 03:07:53.819283027 -0600
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@@ -16478,7 +16478,7 @@
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fi
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-RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
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+RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET -nostdinc++"
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking where to find the target ar" >&5
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$as_echo_n "checking where to find the target ar... " >&6; }
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diff -ruN gcc-11.2.0.orig/configure.ac gcc-11.2.0/configure.ac
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--- gcc-11.2.0.orig/configure.ac 2021-07-28 01:55:06.628278148 -0500
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+++ gcc-11.2.0/configure.ac 2023-11-17 03:08:05.975282593 -0600
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@@ -3520,7 +3520,7 @@
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ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
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ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
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-RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
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+RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET -nostdinc++"
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GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
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GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
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EOF
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# So the && chain above is easier to extend
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true
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}
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patch_mcm || exit 1
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mkdir -p "$OUTPUT"/log
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# Make bootstrap compiler (no $TYPE, dynamically linked against host libc)
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# We build the rest of the cross compilers with this so they're linked against
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# musl-libc, because glibc doesn't fully support static linking and dynamic
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# binaries aren't really portable between distributions
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make_tuple "${TARGETS[0]}" host 2>&1 | tee -a "$OUTPUT/log/$BOOTSTRAP"-host.log
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split_tuple "${TARGETS[0]}"
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BOOTSTRAP="$TARGET"
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if [ $# -gt 0 ]
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then
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for i in "${TARGETS[0]}" "$@"
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do
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make_tuple "$i" static native
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done
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else
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# Here's the list of cross compilers supported by this build script.
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# First target builds a proper version of the $BOOTSTRAP compiler above,
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# which is used to build the rest (in alphabetical order)
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for i in $(seq 0 $((${#TARGETS[@]}-1)))
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do
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make_tuple "${TARGETS[$i]}" static native
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done
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fi
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