[PATCH] kbuild: treat char as always unsigned

[Ahmad Fatoum]

Hello Sascha,

On 22.04.25 09:42, Sascha Hauer wrote:
> 
> On Tue, 22 Apr 2025 08:39:10 +0200, Ahmad Fatoum wrote:
>> The C standard makes it implementation defined whether a plain char is
>> unsigned or signed and the architectures where barebox is compiled for
>> differ in that, e.g. chars are traditionally unsigned on ARM, but on x86
>> for example they tend to be signed.
>>
>> This caused different bugs[1][2][3] in the past, especially around
>> behavior when casted to int. Let's instruct the compiler to treat char
>> as always unsigned. This may fix some issues that flew under the radar
>> so far, but also break drivers that were compiled and used only for
>> specific architectures, which implicitly assumed char is signed, which
>> we'll have to fix.
>>
>> [...]
> 
> Applied, thanks!

Please wait with this until after the release, so it sits in next for
a whole month first.

Thanks,
Ahmad

> 
> [1/1] kbuild: treat char as always unsigned
>       https://git.pengutronix.de/cgit/barebox/commit/?id=2a6033a6610b (link may not be stable)
> 
> Best regards,


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