Open Bug 1833628 Opened 1 year ago Updated 1 year ago

X-only Memory: jmp *0x02(%rip) failures.

Categories

(Core :: JavaScript Engine: JIT, enhancement, P2)

Product:
Core
Component:
JavaScript Engine: JIT
Type:
enhancement

Tracking

()

People

(Reporter: nbp, Unassigned)

References

(Blocks 1 open bug)

Details

https://searchfox.org/mozilla-central/rev/e77d89c414eac63a295a2124600045775a6f4715/js/src/jit/x64/Assembler-x64.h#311

The extended jump table read the address out of the instruction space.
We should fix this as this memory is no longer readable once X-only is used.

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