On Wed, 2019-12-11 at 10:18 +0800, Yi Zhao via Lists.Yoctoproject.Org
wrote:
> 
> 
> On 12/5/19 9:46 PM, Peter Morrow via Lists.Yoctoproject.Org wrote:
> 
> > Hi Folks,
> > 
> > I'm trying to upgrade the meta-selinux layer to use a newer version
> > of
> > the selinux userspace tools (from 2.8 to 2.9), in doing so these
> > newer
> > userspace tools now depend on python3 instead of python2.  This
> > unfortunately has created a build time dependency loop in yocto:
> > 
> > python3 --> util-linux --> libselinux --> python3 (used to be
> > python2
> > with 2.8 selinux userspace).
> 
> 
> Hi Peter,
> I had sent a series patches to update selinux usersapce tools from
> 2.8 ot 2.9: 
> https://www.yoctoproject.org/pipermail/yocto/2019-November/047329.html
> After switch to python3, there is a loop dependency error with
> libselinux-python package when build libselinux. So I split the
> original libselinux recipe into  libselinux and libselinux-python.
> You can refer my patchset.

Hi Yi,

Great!  Is there anything stopping these patches being merged?

Thanks,
Peter.


> 
> 
> //Yi
> 
> 
> > Running "bitbake libselinux" results in a pile of loops, the one
> > below
> > illustrates the point.
> > 
> > ERROR:
> > Dependency loop #1 found:
> >   Task /workspace/git/yocto-selinux/meta-selinux/recipes-
> > security/selinux/libselinux_2.9.bb:do_package (dependent Tasks
> > ['gcc-
> > runtime_9.2.bb:do_packagedata', 'libsepol_2.9.bb:do_packagedata',
> > 'rpm_4.14.2.1.bb:do_populate_sysroot',
> > 'glibc_2.30.bb:do_packagedata',
> > 'python3_3.7.5.bb:do_packagedata',
> > 'libpcre_8.43.bb:do_packagedata',
> > 'pseudo_git.bb:do_populate_sysroot',
> > 'dwarfsrcfiles.bb:do_populate_sysroot',
> > 'libselinux_2.9.bb:do_install'])
> >   Task /workspace/git/yocto-selinux/meta-selinux/recipes-
> > security/selinux/libselinux_2.9.bb:do_packagedata (dependent Tasks
> > ['libselinux_2.9.bb:do_package'])
> >   Task /workspace/git/yocto-selinux/poky/meta/recipes-
> > extended/pam/libpam_1.3.1.bb:do_package (dependent Tasks ['gcc-
> > runtime_9.2.bb:do_packagedata',
> > 'rpm_4.14.2.1.bb:do_populate_sysroot',
> > 'glibc_2.30.bb:do_packagedata', 'libselinux_2.9.bb:do_packagedata',
> > 'flex_2.6.0.bb:do_packagedata',
> > 'pseudo_git.bb:do_populate_sysroot',
> > 'libxcrypt_4.4.8.bb:do_packagedata', 'libpam_1.3.1.bb:do_install',
> > 'dwarfsrcfiles.bb:do_populate_sysroot',
> > 'cracklib_2.9.5.bb:do_packagedata', 'libtool-
> > cross_2.4.6.bb:do_packagedata'])
> >   Task /workspace/git/yocto-selinux/poky/meta/recipes-
> > extended/pam/libpam_1.3.1.bb:do_packagedata (dependent Tasks
> > ['libpam_1.3.1.bb:do_package'])
> >   Task /workspace/git/yocto-selinux/poky/meta/recipes-core/util-
> > linux/util-linux_2.34.bb:do_package (dependent Tasks ['gcc-
> > runtime_9.2.bb:do_packagedata',
> > 'rpm_4.14.2.1.bb:do_populate_sysroot',
> > 'bash-completion_2.9.bb:do_packagedata',
> > 'zlib_1.2.11.bb:do_packagedata', 'glibc_2.30.bb:do_packagedata',
> > 'libselinux_2.9.bb:do_packagedata',
> > 'pseudo_git.bb:do_populate_sysroot',
> > 'ncurses_6.1+20190803.bb:do_packagedata',
> > 'libxcrypt_4.4.8.bb:do_packagedata', 'libcap-
> > ng_0.7.9.bb:do_packagedata', 'opkg-utils_0.4.1.bb:do_packagedata',
> > 'libpam_1.3.1.bb:do_packagedata', 'util-
> > linux_2.34.bb:do_install_ptest_base',
> > 'dwarfsrcfiles.bb:do_populate_sysroot', 'util-
> > linux_2.34.bb:do_install', 'libtool-
> > cross_2.4.6.bb:do_packagedata'])
> >   Task /workspace/git/yocto-selinux/poky/meta/recipes-core/util-
> > linux/util-linux_2.34.bb:do_packagedata (dependent Tasks ['util-
> > linux_2.34.bb:do_package'])
> >   Task /workspace/git/yocto-selinux/poky/meta/recipes-
> > devtools/python/python3_3.7.5.bb:do_package (dependent Tasks
> > ['xz_5.2.4.bb:do_packagedata', 'bzip2_1.0.8.bb:do_packagedata',
> > 'gdbm_1.18.1.bb:do_packagedata', 'libnsl2_git.bb:do_packagedata',
> > 'gcc-
> > runtime_9.2.bb:do_packagedata',
> > 'rpm_4.14.2.1.bb:do_populate_sysroot',
> > 'python3_3.7.5.bb:do_install', 'libffi_3.3~rc0.bb:do_packagedata',
> > 'pseudo_git.bb:do_populate_sysroot',
> > 'sqlite3_3.29.0.bb:do_packagedata',
> > 'openssl_1.1.1d.bb:do_packagedata',
> > 'libtirpc_1.1.4.bb:do_packagedata',
> > 'zlib_1.2.11.bb:do_packagedata',
> > 'glibc_2.30.bb:do_packagedata',
> > 'libxcrypt_4.4.8.bb:do_packagedata',
> > 'python3_3.7.5.bb:do_install_ptest_base', 'util-
> > linux_2.34.bb:do_packagedata', 'opkg-
> > utils_0.4.1.bb:do_packagedata',
> > 'readline_8.0.bb:do_packagedata',
> > 'dwarfsrcfiles.bb:do_populate_sysroot', 'libtool-
> > cross_2.4.6.bb:do_packagedata'])
> >   Task /workspace/git/yocto-selinux/poky/meta/recipes-
> > devtools/python/python3_3.7.5.bb:do_packagedata (dependent Tasks
> > ['python3_3.7.5.bb:do_package'])
> > 
> > Python3 (3.7.5) appears to depend on util-linux for libuuid
> > support, so
> > I don't think anything can be done with regards to
> > this.  libselinux
> > now depends on python3 as of 2.9, so again not much can be done
> > here. 
> > It's proving a bit harder to track down the util-linux dependency
> > on
> > libselinux but I believe this is a hard depdency as well.
> > 
> > I'm using the master branch of both poky and meta-selinux for
> > testing,
> > my local.conf file has the following to enable testing:
> > 
> > DISTRO_FEATURES_append=" acl xattr pam selinux"
> > 
> > The crux of the libselinux recipe change is really just changing
> > the
> > python2 deps over to python3 ones in meta-selinux/recipes-
> > security/selinux/libselinux.inc.
> > 
> > At this point I'd be trying to look for places where recipes can be
> > split out to remove the loop, but nothing jumps out at me.
> > 
> > Can anyone offer any advice or pointers on how to get around
> > this?  Or
> > am I just stuffed?
> > 
> > Many Thanks,
> > Peter.
> > 
> > 
> > 
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