[OpenSmalltalk/opensmalltalk-vm] Cog will require changes to JIT on the next version of Mac (#420)

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[OpenSmalltalk/opensmalltalk-vm] Cog will require changes to JIT on the next version of Mac (#420)

Nicolas Cellier-2
 

See discussion at http://forum.world.st/Cog-will-require-changes-to-JIT-on-the-next-version-of-Mac-tp5102338.html


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Re: [OpenSmalltalk/opensmalltalk-vm] Cog will require changes to JIT on the next version of Mac (#420)

Nicolas Cellier-2
 

Cog will need to be signed with the JIT entitlement and to pass MAP_JIT when it allocates executable memory.


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Re: [OpenSmalltalk/opensmalltalk-vm] Cog will require changes to JIT on the next version of Mac (#420)

Nicolas Cellier-2
In reply to this post by Nicolas Cellier-2
 
On Fri, Nov 29, 2019 at 6:03 AM Clement Bera <[hidden email]>
wrote:

> Cog will need to be signed with the JIT entitlement and to pass MAP_JIT
> when it allocates executable memory.
>

Maybe. It does seem that there are several options. In
https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_security_cs_allow-jit
mention is made of

Allow Unsigned Executable Memory Entitlement
Disable Executable Memory Protection Entitlement
Disable Library Validation Entitlement

_,,,^..^,,,_
best, Eliot


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