Quoting Daniel Axtens (2023-10-05 08:07:47) > (Unless anything has changed dramatically in the last year:) Dependencies are > calculated automatically on the basis of symbols that you use in your module. > If you look at genmoddep.awk and work out from there you can get a handle on > the process. If you only use symbols provided by the ‘kernel’, then you won’t > have any dependencies. > Thanks for the info, that makes sense.
> If you are writing a new module, make sure it’s specified in > Makefile.core.def and you’ve regenerated the necessary files. (From memory I > used to need a full bootstrap to get changes to percolate through.) > > Kind regards, > Daniel There is the problem with the new bli module, that it requires the part_gpt module to be loaded beforehand, but the module dependency list for bli is emplty (see moddep.lst). The part_gpt module only exports one function, grub_gpt_partition_map_iterate(). This is not used in the bli module. However, if part_gpt is not loaded grub does not know how to work with gpt formatted disks and these are not visible. The bli module then can't use grub_device_open(), grub_disk_open(), etc. to get the partition UUID of the ESP. Adding this dummy call to bli.c causes part_gpt to appear as a dependency: (void) grub_gpt_partition_map_iterate (NULL, NULL, NULL); Thanks, I understand the problem now. Oliver > > On 4 Oct 2023, at 8:31 pm, Oliver Steffen <ostef...@redhat.com> wrote: > > > > Hi, > > > > Is there a way to specify dependencies for a module? As in a list of > > other modules that need to be loaded before? > > > > I found a macro named GRUB_MOD_DEP in dh.h, but when I use it in the > > module's .c file I get errors about a missing .moddeps section. It also > > does not seem to be in use anywhere. > > > > How are dependencies handled? I looked at moddep.lst and it does not > > show anything listed for the module I am working on, while other modules > > have a list of dependencies. What am I missing here? > > > > Thanks a lot, > > > > Oliver > > > > > > _______________________________________________ > > Grub-devel mailing list > > Grub-devel@gnu.org > > https://lists.gnu.org/mailman/listinfo/grub-devel > > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > https://lists.gnu.org/mailman/listinfo/grub-devel -- 🎩Oliver Steffen (he/him) - Software Engineer, Virtualization Red Hat GmbH <https://www.redhat.com/de/global/dach>, Registered seat: Werner-von-Siemens-Ring 12, D-85630 Grasbrunn, Germany Commercial register: Amtsgericht München/Munich, HRB 153243, Managing Directors: Ryan Barnhart, Charles Cachera, Michael O'Neill, Amy Ross Everyone has different working hours… Please do not feel obligated to reply outside of your normal work schedule. _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
