[PATCH v4 4/5] RISC-V: add infrastructure to allow different str* implementations

[Andrew Jones]

On Mon, Jan 09, 2023 at 07:17:54PM +0100, Heiko Stuebner wrote:
> From: Heiko Stuebner <heiko.stuebner at vrull.eu>
> 
> Depending on supported extensions on specific RISC-V cores,
> optimized str* functions might make sense.
> 
> This adds basic infrastructure to allow patching the function calls
> via alternatives later on.
> 
> The Linux kernel provides standard implementations for string functions
> but when architectures want to extend them, they need to provide their
> own.

And the compiler provides builtins. In the previous series it appeared
to be a bad idea to compile the kernel with the compiler's builtins
disabled. How will the optimized string functions which will be based
on this patch be selected?

Thanks,
drew