die__process_class: tag not supported 0x33 (variant_part)! 0x2f (template_type_parameter)!

[epilys]

After updating pahole to 1.25 to fix #1723, I got new error messages:

build output:

die__process_class: tag not supported 0x33 (variant_part)!
die__process_class: tag not supported 0x2f (template_type_parameter)!

[nathanchance]

Thanks for the report! Does this result in a hard build error or do you just see the messages and the rest of the build works fine? Reading the pahole sources, it seems like it is expected behavior that we see the error messages but it does not appear to be a hard error that should stop the build:

https://git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?id=2e8cd6a435d96335c4794794147019369b6a7b6a
https://git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?id=525c2644f3683fa92bb5d837b99b9897eee08dc8

For what it is worth, I don't really think these messages should be visible to the user (maybe the pahole developers should see them to remind them about the missing support) but that is not my call to make. I don't really think there is anything for LLVM/ClangBuiltLinux to do here, it appears that it is just generating (valid) debug information that pahole appears not to be able to handle. It may be worth sending an email to Arnaldo Carvalho de Melo <[email protected]> and [email protected] reporting this.