$ git clone -n https://gitee.com/opencloudos-stream/llvm.git /var/lib/mock/dist-ocs23-riscv-rva23-build-361298-42968/root/chroot_tmpdir/scmroot/llvm
Cloning into '/var/lib/mock/dist-ocs23-riscv-rva23-build-361298-42968/root/chroot_tmpdir/scmroot/llvm'...
$ git fetch origin b774fcfce4c5a7a1f76ad76338d800cbfb5bb45b:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/llvm
 * [new ref]         b774fcfce4c5a7a1f76ad76338d800cbfb5bb45b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b774fcf riscv64: enable LLVM dylib; only disable LTO on riscv64