I'm trying to map Java Thread to OS thread within JVMTI. In JVMTI, all I could grab is Java Thread object leveraging GetCurrentThread. But I want to know which OS thread this jthread is mapping to.
I was told that there is a field in Hotspot, eetop, which is a pointer to the underlying OS-level native thread instance of the JVM(ref: hotspot/src/share/vm/classfile/javaClasses.cpp).
How do I use this field to finish the mapping?
This magic is also being performed in async-profiler at src/vmStructs.cpp line 364. Why it works?
