I attempted to check stack trace in the core generated by [SEGV example in
upcall](https://github.com/YaSuenag/garakuta/blob/841452d9176dab1ddbb552009c180530eb81190b/NativeSEGV/ffm/upcall/src/main/java/com/yasuenag/garakuta/nativesegv/upcall/Main.java)
with `jhsdb jstack`, however it failed with following exception.
Error occurred during stack walking:
java.lang.RuntimeException: Couldn't deduce type of CodeBlob
@0x00007fa04c265990 for PC=0x00007fa04c265aa6
at
jdk.hotspot.agent/sun.jvm.hotspot.code.CodeCache.findBlobUnsafe(CodeCache.java:124)
at
jdk.hotspot.agent/sun.jvm.hotspot.code.CodeCache.findBlob(CodeCache.java:83)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.Frame.cb(Frame.java:119)
at
jdk.hotspot.agent/sun.jvm.hotspot.runtime.x86.X86Frame.adjustUnextendedSP(X86Frame.java:334)
at
jdk.hotspot.agent/sun.jvm.hotspot.runtime.x86.X86Frame.initFrame(X86Frame.java:137)
at
jdk.hotspot.agent/sun.jvm.hotspot.runtime.x86.X86Frame.<init>(X86Frame.java:163)
at
jdk.hotspot.agent/sun.jvm.hotspot.runtime.x86.X86Frame.senderForInterpreterFrame(X86Frame.java:361)
at
jdk.hotspot.agent/sun.jvm.hotspot.runtime.x86.X86Frame.sender(X86Frame.java:281)
at
jdk.hotspot.agent/sun.jvm.hotspot.runtime.Frame.sender(Frame.java:207)
at
jdk.hotspot.agent/sun.jvm.hotspot.runtime.Frame.realSender(Frame.java:212)
at
jdk.hotspot.agent/sun.jvm.hotspot.runtime.VFrame.sender(VFrame.java:120)
at
jdk.hotspot.agent/sun.jvm.hotspot.runtime.VFrame.javaSender(VFrame.java:144)
at
jdk.hotspot.agent/sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:81)
at
jdk.hotspot.agent/sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.JStack.run(JStack.java:67)
at
jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.startInternal(Tool.java:278)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.start(Tool.java:241)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.execute(Tool.java:134)
at
jdk.hotspot.agent/sun.jvm.hotspot.tools.JStack.runWithArgs(JStack.java:90)
at
jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.runJSTACK(SALauncher.java:302)
at
jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.main(SALauncher.java:500)
Caused by: sun.jvm.hotspot.types.WrongTypeException: No suitable match for type
of address 0x00007fa04c265990 (nearest symbol is _ZTV10UpcallStub)
at
jdk.hotspot.agent/sun.jvm.hotspot.runtime.InstanceConstructor.newWrongTypeException(InstanceConstructor.java:62)
at
jdk.hotspot.agent/sun.jvm.hotspot.runtime.VirtualConstructor.instantiateWrapperFor(VirtualConstructor.java:80)
at
jdk.hotspot.agent/sun.jvm.hotspot.code.CodeCache.findBlobUnsafe(CodeCache.java:107)
FFM upcall would use `UpcallStub` to call Java code from native, however frame
size of the stub would be set to zero implicitly. It should be set to valid
size.
-------------
Commit messages:
- 8339307: jhsdb jstack could not trace FFM upcall frame
Changes: https://git.openjdk.org/jdk/pull/20789/files
Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20789&range=00
Issue: https://bugs.openjdk.org/browse/JDK-8339307
Stats: 72 lines in 7 files changed: 63 ins; 0 del; 9 mod
Patch: https://git.openjdk.org/jdk/pull/20789.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/20789/head:pull/20789
PR: https://git.openjdk.org/jdk/pull/20789
