src/jdk.hotspot.agent/doc/hsdb.html
author neliasso
Fri, 29 Nov 2019 11:26:25 +0100
changeset 59324 5e8f9713e343
parent 47216 71c04702a3d5
permissions -rw-r--r--
8234520: ZGC: C2: Oop instance cloning causing skipped compiles Reviewed-by: pliden, vlivanov
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<html>
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<head>
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<title>
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SA HSDB GUI
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</title>
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</head>
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<body>
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<p>
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Once the HSDB debugger has been launched, the threads list is displayed
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if launched with debuggee options (pid or core) in command line. If
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HSDB was launched without debuggee, empty screen is shown.
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</p>
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<p>File menu sub-menu options to attach, detach debuggee and exit tool.</p>
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<p>Tools menu sub-menus include:</p>
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  <ul>
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  <li>browsing of the annotated stack memory ("Stack Memory" button). It
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   is currently annotated with the following information:
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   <ul>
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   <li> method names of the Java frames and their extents (supporting
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     inlined compiled methods)
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   <li> locations and types of oops, found using the oop map information
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     from compiled methods (interpreter oop maps coming soon)
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   <li> if a Java frame was interrupted by a signal (e.g., because of a
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     crash), annotates the frame with the signal name and number
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   <li> interpreter codelet descriptions for interpreted frames
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   </ul>
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 <li> finding which thread or threads caused a crash (currently
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   identified by the presence of a signal handler frame - solaris-only)
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 <li> browsing of oops using the Oop Inspector.
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 <li> browsing of the java.lang.Thread object's oop.
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 <li> Object Histogram and inspection of objects and liveness analysis therein.
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 <li> Class Browser - view Java classes, bytecode disassembly,
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   or create .class files for selected classes
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 <li> native disassembly (sparc, x86 only) and nmethod disassembly with annotations for safepoint details.
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 <li> view -XX flags, System properties, VM version of debuggee
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 </ul>
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<p>Windows sub-menu options include:</p>
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 <ul>
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 <li> Windows sub-menu: Console window to run "CLHSDB" commands in GUI
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 <li> Windows sub-menu: Debugger console of underlying native debugger (MS Windbg or dbx (if used))
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</ul>
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</body>
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</html>