1 files changed, 72 insertions, 0 deletions
diff --git a/taskcluster/scripts/misc/build-clang.sh b/taskcluster/scripts/misc/build-clang.sh
new file mode 100755
index 0000000000..9307774062
--- /dev/null
+++ b/taskcluster/scripts/misc/build-clang.sh
@@ -0,0 +1,72 @@
+#!/bin/bash
+set -x -e -v
+
+# This script is for building clang.
+
+ORIGPWD="$PWD"
+CONFIGS=$(for c; do echo -n " -c $GECKO_PATH/$c"; done)
+
+cd $GECKO_PATH
+
+if [ -d "$MOZ_FETCHES_DIR/binutils/bin" ]; then
+  export PATH="$MOZ_FETCHES_DIR/binutils/bin:$PATH"
+fi
+
+# Make the installed compiler-rt(s) available to clang.
+UPLOAD_DIR= taskcluster/scripts/misc/repack-clang.sh
+
+case "$CONFIGS" in
+*macosx64*)
+  # cmake makes decisions based on the output of the mac-only sw_vers, which is
+  # obviously missing when cross-compiling, so create a fake one. The exact
+  # version doesn't really matter: as of writing, cmake checks at most for 10.5.
+  mkdir -p $ORIGPWD/bin
+  echo "#!/bin/sh" > $ORIGPWD/bin/sw_vers
+  echo echo 10.12 >> $ORIGPWD/bin/sw_vers
+  chmod +x $ORIGPWD/bin/sw_vers
+  # these variables are used in build-clang.py
+  export CROSS_SYSROOT=$(ls -d $MOZ_FETCHES_DIR/MacOSX1*.sdk)
+  export PATH=$PATH:$ORIGPWD/bin
+  ;;
+*win64*)
+  case "$(uname -s)" in
+  MINGW*|MSYS*)
+    export UPLOAD_DIR=$ORIGPWD/public/build
+    # Set up all the Visual Studio paths.
+    . taskcluster/scripts/misc/vs-setup.sh
+
+    # LLVM_ENABLE_DIA_SDK is set if the directory "$ENV{VSINSTALLDIR}DIA SDK"
+    # exists.
+    export VSINSTALLDIR="${VSPATH}/"
+
+    export PATH="$(cd $MOZ_FETCHES_DIR/cmake && pwd)/bin:${PATH}"
+    export PATH="$(cd $MOZ_FETCHES_DIR/ninja && pwd)/bin:${PATH}"
+    ;;
+  *)
+    export VSINSTALLDIR="$MOZ_FETCHES_DIR/vs"
+    ;;
+  esac
+  ;;
+*linux64*|*android*)
+  ;;
+*)
+  echo Cannot figure out build configuration for $CONFIGS
+  exit 1
+  ;;
+esac
+
+# gets a bit too verbose here
+set +x
+
+cd $MOZ_FETCHES_DIR/llvm-project
+python3 $GECKO_PATH/build/build-clang/build-clang.py $CONFIGS
+
+set -x
+
+if [ -f clang*.tar.zst ]; then
+    # Put a tarball in the artifacts dir
+    mkdir -p $UPLOAD_DIR
+    cp clang*.tar.zst $UPLOAD_DIR
+fi
+
+. $GECKO_PATH/taskcluster/scripts/misc/vs-cleanup.sh