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8370240: [PPC64] jhsdb jstack cannot handle continuation stub #27902

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8370240: [PPC64] jhsdb jstack cannot handle continuation stub #27902

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3aedfd5
8370240: [PPC64] jhsdb jstack cannot handle continuation stub
dbriemann Oct 20, 2025
056a8b5
remove unnecessary requires
dbriemann Oct 21, 2025
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17 changes: 16 additions & 1 deletion src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/ppc64/PPC64Frame.java
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Original file line number Diff line number Diff line change
Expand Up @@ -258,7 +258,13 @@ public Frame sender(RegisterMap regMap, CodeBlob cb) {
}

if (cb != null) {
return cb.isUpcallStub() ? senderForUpcallStub(map, (UpcallStub)cb) : senderForCompiledFrame(map, cb);
if (cb.isUpcallStub()) {
return senderForUpcallStub(map, (UpcallStub)cb);
} else if (cb.isContinuationStub()) {
return senderForContinuationStub(map, cb);
} else {
return senderForCompiledFrame(map, cb);
}
}

// Must be native-compiled frame, i.e. the marshaling code for native
Expand Down Expand Up @@ -331,6 +337,15 @@ private Frame senderForInterpreterFrame(PPC64RegisterMap map) {
return new PPC64Frame(sp, unextendedSP, getLink(), getSenderPC());
}

private Frame senderForContinuationStub(PPC64RegisterMap map, CodeBlob cb) {
var contEntry = map.getThread().getContEntry();

Address sp = contEntry.getEntrySP();
Address pc = contEntry.getEntryPC();
Address fp = contEntry.getEntryFP();

return new PPC64Frame(sp, fp, pc);
}

private Frame senderForCompiledFrame(PPC64RegisterMap map, CodeBlob cb) {
if (DEBUG) {
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1 change: 0 additions & 1 deletion test/hotspot/jtreg/serviceability/sa/TestJhsdbJstackWithVirtualThread.java
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Expand Up @@ -37,7 +37,6 @@
* @test
* @bug 8369505
* @requires vm.hasSA
* @requires (os.arch == "amd64" | os.arch == "x86_64" | os.arch == "aarch64" | os.arch == "riscv64")
* @library /test/lib
* @run driver TestJhsdbJstackWithVirtualThread
*/
Expand Down