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Extract the owner thread retrieval function

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This commit is contained in:
Yasumasa Suenaga 2026-01-23 12:01:12 +09:00
parent 8568a8fb70
commit 645b7711a2
1 changed files with 15 additions and 7 deletions
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22
src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/debugger/windbg/WindbgCDebugger.java
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@ -26,7 +26,6 @@ package sun.jvm.hotspot.debugger.windbg;
import java.io.*;
import java.util.*;
import java.util.stream.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.debugger.cdbg.*;
import sun.jvm.hotspot.debugger.amd64.*;
@ -68,6 +67,19 @@ class WindbgCDebugger implements CDebugger {
return null;
}
private JavaThread mapThreadProxyToJavaThread(ThreadProxy thread) {
var threads = VM.getVM().getThreads();
for (int i = 0; i < threads.getNumberOfThreads(); i++) {
var jt = threads.getJavaThreadAt(i);
if (thread.equals(jt.getThreadProxy())) {
return jt;
}
}
// not found
return null;
}
public CFrame topFrameForThread(ThreadProxy thread) throws DebuggerException {
if (dbg.getCPU().equals("amd64")) {
AMD64ThreadContext context = (AMD64ThreadContext) thread.getContext();
@ -80,12 +92,8 @@ class WindbgCDebugger implements CDebugger {
Address pc = context.getRegisterAsAddress(AMD64ThreadContext.RIP);
if (pc == null) return null;
Threads threads = VM.getVM().getThreads();
JavaThread ownerThread = IntStream.range(0, threads.getNumberOfThreads())
.mapToObj(threads::getJavaThreadAt)
.filter(jt -> thread.equals(jt.getThreadProxy()))
.findFirst()
.orElse(null);
// get JavaThread as the owner from ThreadProxy
JavaThread ownerThread = mapThreadProxyToJavaThread(thread);
return new WindowsAMD64CFrame(dbg, ownerThread, rsp, rbp, pc);
} else {