Hello Abhay,
On Fri, Aug 12, 2016 at 12:05:00AM +0200, Abhay Amala wrote:
> I could manage to enable python modules for my python project. I put the
> directory containing the project file (python modules) and the python
> standard libraries into a tar archive to be accessed by the tz_vmm (see the
> configuration below). The project runs successfully, but I get the
> following message when os module is imported. This message is repeated for
> each python module imported in the project. Anyone has any idea to fix
> this? Thank you in advance for your answers.
>
>
> [init -> tar_fs] Could not find record for /Lib/os
> [init -> tar_fs] Could not find record for /Lib/os.so
> [init -> tar_fs] Could not find record for /Lib/osmodule.so
> [init -> tar_fs] Could not find record for /Lib/os.pyc
> [init -> tar_fs] Could not find record for /Lib/os.pyc
> [init -> tz_vmm] plugin()->open("./Lib/os.pyc") failed
I suppose you did not archive 'Lib/os.pyc'? What does
tar tf pyproject.tar
look like? If I understand you correctly your program runs anyway, so
it seems the log output is an artifact of heuristics in the Python
implementation looking for modules names 'os'.
> Here is the configuration.
>
> <start name="tar_fs">
> <resource name="RAM" quantum="50M"/>
> <provides> <service name="File_system"/> </provides>
> <config>
> <archive name="pyproject.tar" />
> <policy root="/" />
> </config>
> </start>
>
> <start name="tz_vmm">
> <resource name="RAM" quantum="100M"/>
> <config>
> <fstab> <tar name="pyproject.tar" /> </fstab>
> <libc stdout="/dev/log" stderr="/dev/log" >
> <vfs>
> <dir name="dev"> <log/> </dir>
> <fs/>
> </vfs>
> </libc>
> </config>
> </start>
Your configuration has parts of both (the old and the new) ways to use
TAR archives in libc programs. I suggest to remove tar_fs and fix the
VFS integration of pyproject.tar like follows
<libc stdout="/dev/log" stderr="/dev/log">
<vfs>
<dir name="dev"> <log/> </dir>
<tar name="pyproject.tar"/>
</vfs>
</libc>
Regards
--
Christian Helmuth
Genode Labs
http://www.genode-labs.com/ · http://genode.org/
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