| #!/bin/bash |
| |
| # Script to build all cross and native compilers supported by musl-libc. |
| # This isn't directly used by toybox, but is useful for testing. |
| |
| trap "exit 1" INT |
| |
| if [ ! -d litecross ] |
| then |
| echo Run this script in musl-cross-make directory to make "ccc" directory. |
| echo |
| echo " "git clone https://github.com/richfelker/musl-cross-make |
| echo " "cd musl-cross-make |
| echo ' ~/toybox/scripts/mcm-buildall.sh' |
| exit 1 |
| fi |
| |
| # 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:$LP" |
| [ -z "$(PATH="$LP" which $TARGET-cc)" ] && |
| echo "no $TARGET-cc in $LP" && return |
| fi |
| COMMON_CONFIG="CC=\"$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-cc" ] || |
| [ -e "$OUTPUT/bin/cc" ] |
| 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" && |
| [ -z "$CPUS" ] && CPUS=$(($(nproc)+1)) |
| set -x && |
| PATH="$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}-${TYPE}.log |
| done |
| } |
| |
| # Packages detect nommu via the absence of fork(). Musl provides a broken fork() |
| # on nommu builds that always returns -ENOSYS at runtime. Rip it out. |
| # (Currently only for superh/jcore.) |
| fix_nommu() |
| { |
| # Rich won't merge this |
| sed -i 's/--enable-fdpic$/& --enable-twoprocess/' litecross/Makefile |
| |
| PP=patches/musl-"$(sed -n 's/MUSL_VER[ \t]*=[ \t]*//p' Makefile)" |
| mkdir -p "$PP" && |
| cat > "$PP"/0001-nommu.patch << 'EOF' |
| --- a/include/features.h |
| +++ b/include/features.h |
| @@ -3,2 +3,4 @@ |
| |
| +#define __MUSL__ 1 |
| + |
| #if defined(_ALL_SOURCE) && !defined(_GNU_SOURCE) |
| --- a/src/legacy/daemon.c |
| +++ b/src/legacy/daemon.c |
| @@ -17,3 +17,3 @@ |
| |
| - switch(fork()) { |
| + switch(vfork()) { |
| case 0: break; |
| @@ -25,3 +25,3 @@ |
| |
| - switch(fork()) { |
| + switch(vfork()) { |
| case 0: break; |
| --- a/src/misc/forkpty.c |
| +++ b/src/misc/forkpty.c |
| @@ -8,2 +8,3 @@ |
| |
| +#ifndef __SH_FDPIC__ |
| int forkpty(int *pm, char *name, const struct termios *tio, const struct winsize *ws) |
| @@ -57,1 +58,2 @@ |
| } |
| +#endif |
| --- a/src/misc/wordexp.c |
| +++ b/src/misc/wordexp.c |
| @@ -25,2 +25,3 @@ |
| |
| +#ifndef __SH_FDPIC__ |
| static int do_wordexp(const char *s, wordexp_t *we, int flags) |
| @@ -177,2 +178,3 @@ |
| } |
| +#endif |
| |
| --- a/src/process/fork.c |
| +++ b/src/process/fork.c |
| @@ -7,2 +7,3 @@ |
| |
| +#ifndef __SH_FDPIC__ |
| static void dummy(int x) |
| @@ -37,1 +38,2 @@ |
| } |
| +#endif |
| --- a/Makefile |
| +++ b/Makefile |
| @@ -100,3 +100,3 @@ |
| cp $< $@ |
| - sed -n -e s/__NR_/SYS_/p < $< >> $@ |
| + sed -e s/__NR_/SYS_/ < $< >> $@ |
| |
| --- a/arch/sh/bits/syscall.h.in |
| +++ b/arch/sh/bits/syscall.h.in |
| @@ -2,3 +2,5 @@ |
| #define __NR_exit 1 |
| +#ifndef __SH_FDPIC__ |
| #define __NR_fork 2 |
| +#endif |
| #define __NR_read 3 |
| EOF |
| |
| # I won't sign the FSF's copyright assignment |
| tee $(for i in patches/gcc-*; do echo $i/099-vfork.patch; done) > /dev/null << 'EOF' |
| --- gcc-8.3.0/fixincludes/procopen.c 2005-08-14 19:50:43.000000000 -0500 |
| +++ gcc-bak/fixincludes/procopen.c 2020-02-06 23:27:15.408071708 -0600 |
| @@ -116,3 +116,3 @@ |
| */ |
| - ch_id = fork (); |
| + ch_id = vfork (); |
| switch (ch_id) |
| EOF |
| } |
| |
| fix_nommu || exit 1 |
| mkdir -p "$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 |
| # Here's the list of cross compilers supported by this build script. |
| |
| # First target builds a proper version of the $BOOTSTRAP compiler above, |
| # which is used to build the rest (in alphabetical order) |
| for i in i686:: \ |
| aarch64:eabi: armv4l:eabihf:"--with-arch=armv5t --with-float=soft" \ |
| "armv5l:eabihf:--with-arch=armv5t --with-fpu=vfpv2 --with-float=hard" \ |
| "armv7l:eabihf:--with-arch=armv7-a --with-fpu=vfpv3-d16 --with-float=hard" \ |
| "armv7m:eabi:--with-arch=armv7-m --with-mode=thumb --disable-libatomic --enable-default-pie" \ |
| armv7r:eabihf:"--with-arch=armv7-r --enable-default-pie" \ |
| i486:: m68k:: microblaze:: mips:: mips64:: mipsel:: powerpc:: \ |
| powerpc64:: powerpc64le:: s390x:: sh2eb:fdpic:--with-cpu=mj2 \ |
| sh4::--enable-incomplete-targets x86_64::--with-mtune=nocona \ |
| x86_64@x32:x32: |
| do |
| make_tuple "$i" |
| done |
| fi |