Re: ERROR: INT DW_ATE_unsigned_1 Error emitting BTF type

[Nick Desaulniers]

> Hi,
> 
> when building with pahole v1.20 and binutils v2.35.2 plus Clang
> v12.0.0-rc1 and DWARF-v5 I see:
> ...
> + info BTF .btf.vmlinux.bin.o
> + [  != silent_ ]
> + printf   %-7s %s\n BTF .btf.vmlinux.bin.o
>  BTF     .btf.vmlinux.bin.o
> + LLVM_OBJCOPY=/opt/binutils/bin/objcopy /opt/pahole/bin/pahole -J
> .tmp_vmlinux.btf
> [115] INT DW_ATE_unsigned_1 Error emitting BTF type
> Encountered error while encoding BTF.

Yes, I observe this error, too.

https://gist.github.com/nickdesaulniers/ae8c9efbe4da69b1cf0dce138c1d2781

via v9 of my DWARF v5 series, which should help make this easier to
reproduce:
https://lore.kernel.org/lkml/CA+icZUW3sg_PkbmKSFMs6EqwQV7=hvKuAgZSsbg=Qr6gTs7RbQ@xxxxxxxxxxxxxx/T/#m45ec7e6df4c4b5e9da034b95d7dfc8e2a0c81dac