Merge remote-tracking branch 'upstream/master' into asm-compile-tests

1 files changed, 70 insertions, 0 deletions

diff --git a/src/ci/docker/scripts/musl-toolchain.sh b/src/ci/docker/scripts/musl-toolchain.sh
new file mode 100644
index 00000000000..95b7c2869c9
--- /dev/null
+++ b/src/ci/docker/scripts/musl-toolchain.sh
@@ -0,0 +1,70 @@
+# This script runs `musl-cross-make` to prepare C toolchain (Binutils, GCC, musl itself)
+# and builds static libunwind that we distribute for static target.
+#
+# Versions of the toolchain components are configurable in `musl-cross-make/Makefile` and
+# musl unlike GLIBC is forward compatible so upgrading it shouldn't break old distributions.
+# Right now we have: Binutils 2.27, GCC 6.3.0, musl 1.1.18
+set -ex
+
+hide_output() {
+  set +x
+  on_err="
+echo ERROR: An error was encountered with the build.
+cat /tmp/build.log
+exit 1
+"
+  trap "$on_err" ERR
+  bash -c "while true; do sleep 30; echo \$(date) - building ...; done" &
+  PING_LOOP_PID=$!
+  $@ &> /tmp/build.log
+  trap - ERR
+  kill $PING_LOOP_PID
+  rm /tmp/build.log
+  set -x
+}
+
+ARCH=$1
+TARGET=$ARCH-linux-musl
+
+OUTPUT=/usr/local
+shift
+
+git clone https://github.com/richfelker/musl-cross-make -b v0.9.7
+cd musl-cross-make
+
+hide_output make -j$(nproc) TARGET=$TARGET
+hide_output make install TARGET=$TARGET OUTPUT=$OUTPUT
+
+cd -
+
+# Install musl library to make binaries executable
+ln -s $OUTPUT/$TARGET/lib/libc.so /lib/ld-musl-$ARCH.so.1
+echo $OUTPUT/$TARGET/lib >> /etc/ld-musl-$ARCH.path
+
+
+export CC=$TARGET-gcc
+export CXX=$TARGET-g++
+
+LLVM=70
+
+# may have been downloaded in a previous run
+if [ ! -d libunwind-release_$LLVM ]; then
+  curl -L https://github.com/llvm-mirror/llvm/archive/release_$LLVM.tar.gz | tar xzf -
+  curl -L https://github.com/llvm-mirror/libunwind/archive/release_$LLVM.tar.gz | tar xzf -
+fi
+
+# fixme(mati865): Replace it with https://github.com/rust-lang/rust/pull/59089
+mkdir libunwind-build
+cd libunwind-build
+cmake ../libunwind-release_$LLVM \
+          -DLLVM_PATH=/build/llvm-release_$LLVM \
+          -DLIBUNWIND_ENABLE_SHARED=0 \
+          -DCMAKE_C_COMPILER=$CC \
+          -DCMAKE_CXX_COMPILER=$CXX \
+          -DCMAKE_C_FLAGS="$CFLAGS" \
+          -DCMAKE_CXX_FLAGS="$CXXFLAGS"
+
+hide_output make -j$(nproc)
+cp lib/libunwind.a $OUTPUT/$TARGET/lib
+cd - && rm -rf libunwind-build
+