Hi Marek,
On Fri, 5 Mar 2021 at 08:37, Marek Behun marek.behun@nic.cz wrote:
On Fri, 5 Mar 2021 11:00:45 +0800 Bin Meng bmeng.cn@gmail.com wrote:
On Wed, Mar 3, 2021 at 12:13 PM Marek Behún 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?
I don't, but this is a bug anyway. The symbol clashes with the symbol from glibc. Does somebody know whether the usage of this symbol in os.c does really use glibc's version or U-Boot's one?
It is intended to use glibc's version. In fact I don't think U-Boot should have an errno. We return errors in each case, as does Linux.
Regards, Simon