U-boot is broken with -O0?

[Sean Anderson]

Hi Oleh,

On 11/9/21 2:31 PM, Oleh Kravchenko wrote:
> Hello Tom,
> for what reason it's not supported?
> 
> I'm finding that very useful for debugging.

Perhaps try -Og

--Sean

> Only a few issues with conditional compilation breaks it.
> 
> Also this issue reproducible if -DDEBUG=1 is used.
> 
> --
> Best regards,
> Oleh Kravchenko
> 
>> 9 лист. 2021 р. о 20:52 Tom Rini <trini at konsulko.com> пише:
>> 
>> On Tue, Nov 09, 2021 at 08:33:33PM +0200, Oleh Kravchenko wrote:
>> 
>>> Hello guys!
>>> 
>>> I think the CI verification job for u-boot patches should be updated to include CFLAGS like -O0
>>> Because I'm not able to build u-boot for Raspberry Pi (or to another board) with -O0
>>> 
>>> Here the commands how to quickly reprodice the problem:
>>>     export ARCH=arm64
>>>     export CROSS_COMPILE=aarch64-linux-gnueabi-
>>>     export KCFLAGS=-O0
>>>     make rpi_4_defconfig
>>>     make -j$(nproc)
>>> 
>>> I've attached part of the build log to this email.
>> 
>> You can't build a functional U-Boot with optimization globally disabled,
>> it's just not supported.
>> 
>> -- 
>> Tom
>