From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bin Meng <bmeng.cn@gmail.com>
Date: Fri, 5 Mar 2021 11:00:45 +0800
Subject: [RFC PATCH u-boot 02/12] sandbox: errno: avoid conflict with
 libc's errno
In-Reply-To: <20210303041211.26945-3-marek.behun@nic.cz>
References: <20210303041211.26945-1-marek.behun@nic.cz>
 <20210303041211.26945-3-marek.behun@nic.cz>
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On Wed, Mar 3, 2021 at 12:13 PM Marek Beh?n <marek.behun@nic.cz> wrote:
>
> When building with LTO, the system libc's `errno` variable used in
> arch/sandbox/cpu/os.c conflicts with U-Boot's `errno` (defined in
> lib/errno.c) with the following error:
>  .../ld: errno@@GLIBC_PRIVATE: TLS definition in /lib64/libc.so.6
>          section .tbss mismatches non-TLS reference in
>          /tmp/u-boot.EQlEXz.ltrans0.ltrans.o

Do you know if this is the expected behavior when enabling LTO on the compiler?

>
> To avoid this conflict use different asm label for this variable when
> CONFIG_SANDBOX is enabled.
>
> Signed-off-by: Marek Beh?n <marek.behun@nic.cz>
> ---
>  include/errno.h | 8 +++++++-
>  lib/errno.c     | 4 +++-
>  2 files changed, 10 insertions(+), 2 deletions(-)

Regards,
Bin