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0 pointstayistay2y ago0 comments

Can that be done without disabling JIT for the rest of us? My app would benefit greatly from JIT compilation, and it's always been a bummer that it can't realize its full performance potential on iOS.

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riscy2y ago

No. A JIT requires marking pages of runtime-generated data as executable. It’s an attacker’s dream: https://en.wikipedia.org/wiki/JIT_spraying

The entire compiler and language-runtime using a JIT becomes an attack surface. Securing Javascript is hard enough.

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