JDK-8331978 : AARCH64: don't use MAP_JIT for stubs like f2hf and hf2f
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 23
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • OS: os_x
  • CPU: aarch64
  • Submitted: 2024-05-09
  • Updated: 2024-05-10
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tbdUnresolved
Related Reports
Relates :  
JDK-8307817 - AARCH64: make macOS W^X locking more fine grained
Description
Any stub that is write-once (never needs patching) could be placed in regular r-x memory instead of special MAP_JIT memory, avoiding the need for a W^X mode switch before the call.
Comments
Another candidate: StubRoutines::aarch64::spin_wait
09-05-2024