genodelabs / genode-imx Goto Github PK

When attempting to build the framebuffer or SD-card driver, the following error occurs:

.../contrib/mnt_reform2_linux-90fc608b70814e0448031ad49a99273ed72d77a4/linux/lib/crc32.c:48:10: fatal error: crc32table.h: No such file or directory
   48 | #include "crc32table.h"

This file is normally generated by the Linux build system but it is absent from src/include/imx8mq/lx_generated. BTW, for the genode-allwinner drivers, I use the following rule to generate the file: https://github.com/nfeske/genode-allwinner/blob/master/lib/import/import-a64_lx_emul.mk#L147

In https://github.com/skalk/genode-imx8mq/blob/main/ports/mnt_reform2_linux.port#L17 a shell command is used to apply patches collected using a shell command. This has the unfortunate effect that a change of a patch does not affect the port hash as it should. E.g., I just ran into trouble updating to the usb branch, which ultimately needed a clean prepare_port.

This problem can be solved best by listing the patches in the PATCHES variable, which is the official way of handling patches. The variable may be populated using a $(wildcard).

Alternatively, the port file could extend the HASH_INPUT variable.

Related to genodelabs/genode#5089

The following commits add support for executing multiple clients concurrently and gets rid of the explicit I/O signal handling (cf genodelabs/genode#2777). In contrast to the other GPU drivers multiple contexts are still handled implicitly (i.e. there is only one Gpu session used by each client), which will be addressed at a later date.

While adapting the driver I missed the local request handling, which renders the driver unusable.