1 files changed, 66 insertions, 0 deletions
diff --git a/taskcluster/scripts/misc/build-rust-based-toolchain.sh b/taskcluster/scripts/misc/build-rust-based-toolchain.sh
new file mode 100755
index 0000000000..a5939ed58e
--- /dev/null
+++ b/taskcluster/scripts/misc/build-rust-based-toolchain.sh
@@ -0,0 +1,66 @@
+#!/bin/bash
+set -x -e -v
+
+artifact=$(basename "$TOOLCHAIN_ARTIFACT")
+project=${artifact%.tar.*}
+workspace=$HOME/workspace
+
+# Exported for osx-cross-linker.
+export TARGET=$1
+shift
+
+FEATURES="$@"
+
+case "$TARGET" in
+x86_64-unknown-linux-gnu)
+    # Native Linux Build
+    export RUSTFLAGS="-Clinker=$MOZ_FETCHES_DIR/clang/bin/clang++ -C link-arg=--sysroot=$MOZ_FETCHES_DIR/sysroot-x86_64-linux-gnu -C link-arg=-fuse-ld=lld"
+    export CC=$MOZ_FETCHES_DIR/clang/bin/clang
+    export CXX=$MOZ_FETCHES_DIR/clang/bin/clang++
+    export TARGET_CFLAGS="--sysroot=$MOZ_FETCHES_DIR/sysroot-x86_64-linux-gnu"
+    export TARGET_CXXFLAGS="-D_GLIBCXX_USE_CXX11_ABI=0 --sysroot=$MOZ_FETCHES_DIR/sysroot-x86_64-linux-gnu"
+    ;;
+*-apple-darwin)
+    # Cross-compiling for Mac on Linux.
+    export PATH="$MOZ_FETCHES_DIR/clang/bin:$PATH"
+    export RUSTFLAGS="-C linker=$GECKO_PATH/taskcluster/scripts/misc/osx-cross-linker"
+    if test "$TARGET" = "aarch64-apple-darwin"; then
+        export MACOSX_DEPLOYMENT_TARGET=11.0
+    else
+        export MACOSX_DEPLOYMENT_TARGET=10.12
+    fi
+    export CC="$MOZ_FETCHES_DIR/clang/bin/clang"
+    export CXX="$MOZ_FETCHES_DIR/clang/bin/clang++"
+    export TARGET_CFLAGS="-isysroot $MOZ_FETCHES_DIR/MacOSX13.3.sdk"
+    export TARGET_CXXFLAGS="-isysroot $MOZ_FETCHES_DIR/MacOSX13.3.sdk -stdlib=libc++"
+    ;;
+*-pc-windows-msvc)
+    # Cross-compiling for Windows on Linux.
+    export CC=$MOZ_FETCHES_DIR/clang/bin/clang-cl
+    export CXX=$MOZ_FETCHES_DIR/clang/bin/clang-cl
+    export TARGET_AR=$MOZ_FETCHES_DIR/clang/bin/llvm-lib
+
+    . $GECKO_PATH/taskcluster/scripts/misc/vs-setup.sh
+    export CARGO_TARGET_I686_PC_WINDOWS_MSVC_LINKER=$MOZ_FETCHES_DIR/clang/bin/lld-link
+    export CARGO_TARGET_X86_64_PC_WINDOWS_MSVC_LINKER=$MOZ_FETCHES_DIR/clang/bin/lld-link
+    export TARGET_CFLAGS="-Xclang -ivfsoverlay -Xclang $MOZ_FETCHES_DIR/vs/overlay.yaml"
+    export TARGET_CXXFLAGS="-Xclang -ivfsoverlay -Xclang $MOZ_FETCHES_DIR/vs/overlay.yaml"
+    ;;
+esac
+
+PATH="$MOZ_FETCHES_DIR/rustc/bin:$PATH"
+
+cargo install \
+  --locked \
+  --verbose \
+  --path $MOZ_FETCHES_DIR/${FETCH-$project} \
+  --target-dir $workspace/obj \
+  --root $workspace/out \
+  --target "$TARGET" \
+  ${FEATURES:+--features "$FEATURES"}
+
+mkdir $workspace/$project
+mv $workspace/out/bin/* $workspace/$project
+tar -C $workspace -acvf $project.tar.zst $project
+mkdir -p $UPLOAD_DIR
+mv $project.tar.zst $UPLOAD_DIR