make clean doesn't remove .bc files

[nickdesaulniers]

just noticed this. Probably a simple fix.

[nathanchance]

Looks like it should be added here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Makefile?h=v5.17-rc2#n1840

I guess the reason it is not there now is due to the fact that .bc is not a valid single target for Kbuild? Maybe it should be added?

[RishiKumarRay]

Yeah i think too , it should be added there

[huangperry]

If no one's working on this I'd like to take it.

[nathanchance]

@huangperry Go for it!

[brunobarros2093]

Hello everyone, is this still open? I would like to help if so

[nickdesaulniers]

Go for it! IIRC, as @nathanchance noted above, Kbuild also lacks the rule to generate .bc files from .c files which is probably why make clean happens to not remove them.

IMO, support for both should be added together, atomically, in one commit.