JDK-8288433 : Loom: Fix and rewrite x86_32 jfr_write_checkpoint
  • Type: Bug
  • Component: hotspot
  • Sub-Component: jfr
  • Affected Version: 19,20
  • Priority: P3
  • Status: Closed
  • Resolution: Won't Fix
  • Submitted: 2022-06-14
  • Updated: 2025-04-11
  • Resolved: 2025-04-11
Related Reports
Relates :  
JDK-8286476 - x86_32: Fix crashes with non-preview mode after JDK-8284161 (Virtual Threads)
Relates :  
JDK-8354215 - Clean up Loom support after 32-bit x86 removal
Description
When doing initial JDK-8286476, I made a mistake in rewrite from 64-bit: *moved* the argument on stack instead of pushing it in `jfr_prolog`. This is subtly wrong, as stack would drift a bit after the call to `JfrIntrinsicSupport::write_checkpoint`.
Comments
Irrelevant after 32-bit x86 removal.
11-04-2025
Ah, maybe that's irrelevant until x86-32 port actually calls into this stub.
14-06-2022