binary naming

[Nobody III]

Also, you could use the kernel command line, e.g. "init=/genode/core".

On Tue, Oct 24, 2017 at 10:20 AM, Johannes Kliemann <
Johannes.Kliemann at ...250...> wrote:

> Hi again,
>
> I fixed the file naming and I don't need to rename the files anymore (I
> forgot to prepend the correct directory in the cpio archive).
> With the cpio initramfs I chdir into /genode from the ROM session and
> correctly find the libraries. Yet the segfault and warning I described in
> the last mail still appear.
>
> To reproduce the problem with the current state, check out [1]. The build
> configuration is the same as in the last mail.
>
> Regards,
> Johannes
>
> [1]: https://github.com/jklmnn/genode/commit/2c899063f2bad1318bbd
> e88f2472e017fc72be34
>
>
> On 10/24/17 11:27, Johannes Kliemann wrote:
>
>> Hi,
>>
>> while booting Genode directly on Linux I encountered the problem that
>> Linux requires to call `/init` in the initramfs. Unfortunately Genode
>> requires to call `core` which loads `init` so renaming core to init
>> isn't enough.
>>
>>
>> I renamed init to init2 core to init and called it with "label=init2"
>> which works at first (core finds all ROM sessions) but then segfaults
>> with "init2[45]: segfault at 7f11c473b128 ip 00007f11c4645f40 sp
>> 00007ffc1c8c15f8 error 4 in ld.lib.so[7f11c45c5000+95000]" and the
>> warning "Warning: blocking canceled in entrypoint constructor".
>>
>> This warning was addressed on Linux before in [0] and fixed in
>> ad2859b6b9dae96c48329eebc0a73527ba4deb9b. I have already included this
>> patch.
>>
>> To boot Genode on Linux with this behaviour, checkout [1] and change
>> "KERNEL_RUN_OPT(linux) := --include power_on/linux --include log/linux"
>> to
>> "KERNEL_RUN_OPT(linux) := $(QEMU_RUN_OPT)"
>> in your etc/build.conf (with linux as kernel ofc).
>>
>> Beside renaming I also tried to make the ROM session chdir into a sub
>> directory or to prepend this directory to the binary name. Neither of
>> made Genode correctly find the binaries. I have to say that Linux is not
>> booting into a real fs but is using a initramfs which consists of a cpio
>> archive.
>>
>> What would be the way to go to either rename the binaries to a Linux
>> compatible scheme or to change the library search to find its binaries
>> in a cpio archive (both options should be changeable at build time to
>> still use the current linux)?
>>
>> Regards,
>> Johannes
>>
>> [0]: https://github.com/genodelabs/genode/issues/2521
>> [1]:
>> https://github.com/jklmnn/genode/commit/ef4becffcfc4bfc4079f
>> f411872023b0362f346c
>>
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>>
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