tree d407144c575dfcc0315e7d48980f7dcd5d6413d6
parent c12708bd6fe6105b9cd57baa94f530100e492fa5
author Marek Behún <marek.behun@nic.cz> 1621509845 +0200
committer Tom Rini <trini@konsulko.com> 1621880490 -0400

sandbox: errno: avoid conflict with libc's errno

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

To avoid this conflict use different asm label for this variable when
CONFIG_SANDBOX is enabled.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>