[Vm-dev] nuSqueak source

[K K Subbu]

On 29/10/20 9:01 pm, Eliot Miranda wrote:
> The OS can impose radically different constraints on the JIT.  In 
> Mankato it is impossible to derive an executable region from mmap that 
> is at the same time writable.  On MacOS it is possible, but the VM needs 
> a capability conveyed through its Info.plist and baked in when the app 
> bundle is signed.

doesn't PROT_EXEC imply PROT_READ? a region with write|exec would 
essentially be equivalent to an unprotected one.

> Other linuxes for Pi4 May impose different constraints.  As I only have 
> these two variants I need your help in dealing with differing 
> constraints on these other platforms.

I don't have a RP 4 board to test the Ubuntu aarch64 (COVID-19 lockdown 
constraints). Sorry :-(.

Regards .. Subbu