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README.md

hsdis

Hotspot disassembler extracted from openjdk.

Precondition on linux

To build hsdis on linux you need to make sure you have the standard build tools

apt-get install build-essential

Usage

git clone https://github.com/liuzhengyang/hsdis
cd hsdis
tar -zxvf binutils-2.26.tar.gz
make BINUTILS=binutils-2.26 ARCH=amd64

And then copy hsdis build file to the target folder in JDK.

OSX

sudo cp build/macosx-amd64/hsdis-amd64.dylib /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/server/

Linux

sudo cp build/linux-amd64/hsdis-amd64.so /usr/lib/jvm/java-8-oracle/jre/lib/amd64/server/

After that, you could add -XX:+UnlockDiagnosticVMOptions -XX:+PrintAssembly in the Java Run Param to see the program's assebmle code. One Example:

java -XX:+UnlockDiagnosticVMOptions -XX:+PrintAssembly -Xcomp -XX:CompileCommand=compileonly,*VolatileTest.main com.io.lzy.VolatileTest

There is already a prebuild hsdis-amd64 for OSX 64 in build/macosx-amd64/macosx-amd64.dylib and for linux in build/linux-amd64/hsdis-amd64.so and was build for/with Unbuntu 16.04

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