Re: [PATCH v5 0/3] Kbuild: DWARF v5 support

From: Yonghong Song
Date: Fri Jan 15 2021 - 18:44:24 EST




On 1/15/21 3:34 PM, Nick Desaulniers wrote:
On Fri, Jan 15, 2021 at 3:24 PM Yonghong Song <yhs@xxxxxx> wrote:



On 1/15/21 1:53 PM, Sedat Dilek wrote:
En plus, I encountered breakage with GCC v10.2.1 and LLVM=1 and
CONFIG_DEBUG_INFO_DWARF4.
So might be good to add a "depends on !DEBUG_INFO_BTF" in this combination.

Can you privately send me your configs that repro? Maybe I can isolate
it to a set of configs?


I suggested not to add !DEBUG_INFO_BTF to CONFIG_DEBUG_INFO_DWARF4.
It is not there before and adding this may suddenly break some users.

If certain combination of gcc/llvm does not work for
CONFIG_DEBUG_INFO_DWARF4 with pahole, this is a bug bpf community
should fix.

Is there a place I should report bugs?

You can send bug report to Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>, dwarves@xxxxxxxxxxxxxxx and bpf@xxxxxxxxxxxxxxx.




I had some other small nits commented in the single patches.

As requested in your previous patch-series, feel free to add my:

Tested-by: Sedat Dilek <sedat.dilek@xxxxxxxxx>

Yeah, I'll keep it if v6 is just commit message changes.