1 files changed, 78 insertions, 0 deletions
diff --git a/taskcluster/scripts/misc/build-compiler-rt.sh b/taskcluster/scripts/misc/build-compiler-rt.sh
new file mode 100755
index 0000000000..1b2cb3df35
--- /dev/null
+++ b/taskcluster/scripts/misc/build-compiler-rt.sh
@@ -0,0 +1,78 @@
+#!/bin/sh
+
+set -e
+
+target=$1
+shift
+
+case "$target" in
+aarch64-apple-darwin)
+  arch=arm64
+  sdk=11.0
+  extra_flags="-mcpu=apple-a12"
+  ;;
+x86_64-apple-darwin)
+  arch=x86_64
+  sdk=10.12
+  ;;
+*)
+  echo $target is not supported yet
+  exit 1
+  ;;
+esac
+
+export PATH="$MOZ_FETCHES_DIR/cctools/bin:$PATH"
+
+if [ -n "$TOOLTOOL_MANIFEST" ]; then
+  . $GECKO_PATH/taskcluster/scripts/misc/tooltool-download.sh
+fi
+
+mkdir compiler-rt
+cd compiler-rt
+
+compiler_wrapper() {
+cat > $1 <<EOF
+exec \$MOZ_FETCHES_DIR/clang/bin/$1 -target $target $extra_flags -isysroot \$MOZ_FETCHES_DIR/MacOSX$sdk.sdk "\$@"
+EOF
+chmod +x $1
+}
+compiler_wrapper clang
+compiler_wrapper clang++
+
+for patchfile in "$@"; do
+  patch -d $MOZ_FETCHES_DIR/llvm-project -p1 < $GECKO_PATH/$patchfile
+done
+
+cmake \
+  $MOZ_FETCHES_DIR/llvm-project/compiler-rt \
+  -GNinja \
+  -DCMAKE_C_COMPILER=$PWD/clang \
+  -DCMAKE_CXX_COMPILER=$PWD/clang++ \
+  -DCMAKE_LINKER=$MOZ_FETCHES_DIR/cctools/bin/$target-ld \
+  -DCMAKE_LIPO=$MOZ_FETCHES_DIR/cctools/bin/lipo \
+  -DCMAKE_AR=$MOZ_FETCHES_DIR/cctools/bin/$target-ar \
+  -DCMAKE_RANLIB=$MOZ_FETCHES_DIR/cctools/bin/$target-ranlib \
+  -DCMAKE_BUILD_TYPE=Release \
+  -DLLVM_ENABLE_ASSERTIONS=OFF \
+  -DLLVM_CONFIG_PATH=$MOZ_FETCHES_DIR/clang/bin/llvm-config \
+  -DCMAKE_SYSTEM_NAME=Darwin \
+  -DCMAKE_SYSTEM_VERSION=$sdk \
+  -DDARWIN_osx_ARCHS=$arch \
+  -DDARWIN_osx_SYSROOT=$MOZ_FETCHES_DIR/MacOSX$sdk.sdk \
+  -DLLVM_DEFAULT_TARGET_TRIPLE=$target \
+  -DDARWIN_macosx_OVERRIDE_SDK_VERSION=$sdk \
+  -DDARWIN_osx_BUILTIN_ARCHS=$arch
+
+# compiler-rt build script expects to find `codesign` in $PATH.
+# Give it a fake one.
+echo "#!/bin/sh" > codesign
+chmod +x codesign
+
+PATH=$PATH:$PWD ninja -v
+
+cd ..
+
+tar -cf - compiler-rt/lib/darwin | python3 $GECKO_PATH/taskcluster/scripts/misc/zstdpy > "compiler-rt.tar.zst"
+
+mkdir -p "$UPLOAD_DIR"
+mv "compiler-rt.tar.zst" "$UPLOAD_DIR"