如何为 openJDK11 构建 hsdis-amd64.dll？

Question

I'm doing a course on Java Performance Optimization and I'm stuck trying to download all the required files so that I can build this DLL hsdis-amd64.dll. It's supposed to allow me to use JITWatch and learn about the JIT during this course.

Anyway, the instructions here say to download hotspot for your exact JDK. My JDK is 11 build 11+28.

This is the openJDK repository where

1. I'm supposed to look underopenJDK/MYVERSION/hotspot
2. Click tags, select my exact release
3. Click bz2 to download
4. After which I'm supposed to patch the hotspot hsdiss library I just downloaded and then
5. re MAKE it.
6. Throws the output DLL into my java/bin/

I see the DLLs can't be prebuilt because of licence issues. Any idea how people are using JITWatch with openJDK11?

Answer 1

I have built it recently based on a post from here: https://dropzone.nfshost.com/hsdis/

1. Install Cygwin. At the Select Packages screen, add the following packages (expand the All/Devel category, Search for the package's name, and change the package's New status from Skip to the latest non-Test version):

   gcc-core make mingw64-i686-gcc-core (only needed for hsdis-i386.dll) mingw64-x86_64-gcc-core (only needed for hsdis-amd64.dll)

2. Run Cygwin in a terminal shell

3. Download GNU binutils 2.32 to your Cygwin home directory, and extract it with tar xvf binutils-2.32.tar.xz in a place that you can easily access from cygwin paths.

4. Change to the JDK/src/utils/hsdis directory

5. Build 64bit Windows like this:

   make OS=Linux MINGW=x86_64-w64-mingw32 BINUTILS=/cygdrive/c/cygwin/binutils-2.32

6. If the above command fails (as it might with some unpatched JDK builds) with:

   compress.c:(.text+0x5b): undefined reference to `inflateInit_'

Edit the Makefile, look for libiberty.a and change the library list to include libz.a, like this:

   LIBRARIES =  $(TARGET_DIR)/bfd/libbfd.a \
        $(TARGET_DIR)/opcodes/libopcodes.a \
        $(TARGET_DIR)/libiberty/libiberty.a \
        $(TARGET_DIR)/zlib/libz.a