$ git clone -n https://gitee.com/chen_yu_ao/libcxxabi /var/lib/mock/dist-an23-build-206394-61295/root/chroot_tmpdir/scmroot/libcxxabi
Cloning into '/var/lib/mock/dist-an23-build-206394-61295/root/chroot_tmpdir/scmroot/libcxxabi'...
$ git reset --hard 34f381a462c02ddd47215dc627de9d4da29ceaa8
HEAD is now at 34f381a generate abi files