hsdis | hotspot disassembler hsdis

 by   liuzhengyang Shell Version: Current License: No License

kandi X-RAY | hsdis Summary

kandi X-RAY | hsdis Summary

hsdis is a Shell library typically used in Hardware applications. hsdis has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Hotspot disassembler extracted from openjdk.

            kandi-support Support

              hsdis has a low active ecosystem.
              It has 132 star(s) with 51 fork(s). There are 5 watchers for this library.
              It had no major release in the last 6 months.
              There are 3 open issues and 0 have been closed. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of hsdis is current.

            kandi-Quality Quality

              hsdis has no bugs reported.

            kandi-Security Security

              hsdis has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              hsdis does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              hsdis releases are not available. You will need to build from source code and install.
              Installation instructions are not available. Examples and code snippets are available.

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            hsdis Key Features

            No Key Features are available at this moment for hsdis.

            hsdis Examples and Code Snippets

            No Code Snippets are available at this moment for hsdis.

            Community Discussions


            MATLAB function from Java causes Runtime Error (EXCEPTION_ACCESS_VIOLATION)
            Asked 2019-Dec-09 at 20:12

            I'm using MATLAB Engine API for Java, so far basics such as eval and feval functions work without a problem. I even drew an histogram with those. But PutVariable method causes me to have "EXCEPTION_ACCESS_VIOLATION".

            Code is:



            Answered 2019-Dec-09 at 20:12

            You're doing it right. This is a bug in Matlab, the JDK, or both. Not much you can do here. Contact support for MathWorks and your JDK vendor and let them know what happened, and talk to your IT department to see if you have a weird machine configuration that might be messing them up.

            And try running against a different JDK, like a much lower major version such as JDK 8. Matlab uses old JDK versions, so it's more likely to be tested and work against them.

            Source https://stackoverflow.com/questions/59238471


            In Java , what operations are involved in the final field assignment in the constructor?
            Asked 2019-Aug-11 at 13:10

            I got different execution result from the follow code if the Simple class field a was modified by final keyword.

            If the a is a final field , this program will normally exit; If it's a plain field, this program will keep running all the time.

            This situation only occurs in C2 compiler .

            I thought this situation is related to visibility of the flag field in multi-threads environment.However, I try to observed the assembly code by hsdis ,and found the difference between with and without final keyword.

            I found nothing difference.

            Actually, I know the storing "final" field would not emit any assembly instructions on x86 platform. But why this situation came out? Are there some particular operations I don't know ?

            Thanks for reading.



            Answered 2019-Aug-11 at 13:10

            You've disassembled the wrong compilation. I mean, there is a standalone compiled runMethod on both screenshots, however, it is never executed in reality. Instead, execution jumps from the interpreter to the OSR stub. You need to look for a compilation marked with % sign (which denotes on-stack replacement).

            Source https://stackoverflow.com/questions/57427531


            Why does Java compile to assembly twice?
            Asked 2019-Jun-01 at 19:16

            I compiled a simple Java file to assembly using Java 8 on Mac OS X. This is Test.java:



            Answered 2019-Jun-01 at 19:16

            Why does the generated assembly code have two main methods?

            The Assembly contains the result of the work of the C1 compiler at different compilation levels:

            Source https://stackoverflow.com/questions/56404146


            Unable to use HSDIS with OpenJDK 11
            Asked 2019-May-13 at 09:14

            So I am trying to build/use hsdis with openJDK-11. if I try to build it with binutils I get the following errors:



            Answered 2019-May-13 at 09:14

            I have tried building it with binutils 2.29, 2.30, 2.31 and 2.32. Got same error with all of them.

            The version of the source you have does not work with binutils 2.29+. jdk/jdk has a patch to rectify this. See: https://bugs.openjdk.java.net/browse/JDK-8191006 Which suggests the following fix to hsdis.c:

            Source https://stackoverflow.com/questions/56101856


            Java JNI Launcher in C++: Works without JavaFX, Core Dump with JavaFX
            Asked 2018-Dec-01 at 12:46

            I have written a C++ JNI Java Launcher. It works if I launch a java program that doesn't use JavaFX, but it creates a core dump if I try to launch a JavaFX program with it. Here's the code:

            Without JavaFX - launch.cpp

            With JavaFX - launch.ccp

            The core dump only occurs if I use my native launcher. If I run the JavaFX program with the same arguments using java at the command line, there's no problem. It runs as expected.

            Here's the content of the hs_err file, in a pastebin.

            Rather than paste in code from a handful of files, I created a repository with two branches with complete runnable examples.

            Full Example - No JavaFX

            Full Example - With JavaFX

            You can run the examples by editing build.sh and run-native.sh and changing the line jdk="/usr/lib/jvm/java-11-oracle" to be accurate for your system. Then:



            Answered 2018-Dec-01 at 12:46

            I figured it out. The issue is in on line 35 with the arguments that are passed the JVM's main method:

            env->CallStaticVoidMethod( cls, main, " ");

            We are passing a c-string to Java where java expect a java.lang.String[]. Once anyone tries to read that argument, the JVM crashes. JavaFX must be reading the arguments at some point between main and start(), and crashing as a result.

            The correct line is either

            env->CallStaticVoidMethod( cls, main, "(I)V"); (I haven't tested this one, but it's the common line from the example code provided by the java folks)


            Source https://stackoverflow.com/questions/53553542

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install hsdis

            You can download it from GitHub.


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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