Re: FAILED: patch "[PATCH] Kbuild: do not emit debug info for assembly with LLVM_IAS=1" failed to apply to 5.9-stable tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Dec 9, 2020 at 1:03 AM <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>
>
> The patch below does not apply to the 5.9-stable tree.
> If someone wants it applied there, or to any other stable or longterm
> tree, then please email the backport, including the original git commit
> id to <stable@xxxxxxxxxxxxxxx>.

Cross referencing the thread where manual backports were provided:
https://lore.kernel.org/stable/CAKwvOdnGDHn+Y+g5AsKvOFiuF7iVAJ8+x53SgWxH9ejqEZwY9w@xxxxxxxxxxxxxx/
Sorry for the noise.

>
> thanks,
>
> greg k-h
>
> ------------------ original commit in Linus's tree ------------------
>
> From b8a9092330da2030496ff357272f342eb970d51b Mon Sep 17 00:00:00 2001
> From: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
> Date: Mon, 9 Nov 2020 10:35:28 -0800
> Subject: [PATCH] Kbuild: do not emit debug info for assembly with LLVM_IAS=1
>
> Clang's integrated assembler produces the warning for assembly files:
>
> warning: DWARF2 only supports one section per compilation unit
>
> If -Wa,-gdwarf-* is unspecified, then debug info is not emitted for
> assembly sources (it is still emitted for C sources).  This will be
> re-enabled for newer DWARF versions in a follow up patch.
>
> Enables defconfig+CONFIG_DEBUG_INFO to build cleanly with
> LLVM=1 LLVM_IAS=1 for x86_64 and arm64.
>
> Cc: <stable@xxxxxxxxxxxxxxx>
> Link: https://github.com/ClangBuiltLinux/linux/issues/716
> Reported-by: Dmitry Golovin <dima@xxxxxxxxxx>
> Reported-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
> Suggested-by: Dmitry Golovin <dima@xxxxxxxxxx>
> Suggested-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
> Suggested-by: Sedat Dilek <sedat.dilek@xxxxxxxxx>
> Reviewed-by: Fangrui Song <maskray@xxxxxxxxxx>
> Reviewed-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
> Signed-off-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
> Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
>
> diff --git a/Makefile b/Makefile
> index 87d659d3c8de..ae1592c1f5d6 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -828,7 +828,9 @@ else
>  DEBUG_CFLAGS   += -g
>  endif
>
> +ifneq ($(LLVM_IAS),1)
>  KBUILD_AFLAGS  += -Wa,-gdwarf-2
> +endif
>
>  ifdef CONFIG_DEBUG_INFO_DWARF4
>  DEBUG_CFLAGS   += -gdwarf-4
>


-- 
Thanks,
~Nick Desaulniers



[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux