Re: [PATCH] util/osdep: Avoid mprotect() RWX->NONE on Big Sur 11.2

[Richard Henderson]

On 2/10/21 2:55 AM, Roman Bolshakov wrote:
> There's a change in mprotect() behaviour [1] in the latest macOS on M1
> and it's not yet clear if it's going to be fixed by Apple. For now we
> can avoid unsupported mprotect() calls. QEMU and qtests work fine
> without it.
>
> 1.https://gist.github.com/hikalium/75ae822466ee4da13cbbe486498a191f

This is an unfortunate OS bug.

But I can use this as an opportunity to tidy up some memory management, and in 
the process go from NONE -> {RX,RW} instead.


r~