背景

最近想學習下Hotspot的JIT，查詢大量資料都說需要hsdis，但是又從哪都找不到windows64位的版本。
如果沒有這個東西，直接執行程式碼，加上如下引數後
-XX:+UnlockDiagnosticVMOptions -XX:+PrintAssembly
會得到如下提示
Java HotSpot(TM) 64-Bit Server VM warning: PrintAssembly is enabled; turning on DebugNonSafepoints to gain additional output
Could not load hsdis-amd64.dll; library not loadable; PrintAssembly is disabled

動手

How to build hsdis-amd64.dll and hsdis-i386.dll on Windows

1. Install Cygwin. At the Select Packages screen, add the following packages (by expanding the Devel category, then clicking once on the Skip label next to each package name):
   
   • make
   • mingw64-x86_64-gcc-core (only needed for hsdis-amd64.dll)
   • mingw64-i686-gcc-core (only needed for hsdis-i386.dll)
2. Run the Cygwin Terminal. This can be done using the Desktop or Start Menu icon created by the installer, and will create your Cygwin home directory (C:\cygwin\home\username or C:\cygwin64\home\username
   , by default).
3. Download the latest GNU binutils source package and extract its contents to your Cygwin home directory. At the time of writing, the latest package is binutils-2.24.tar.bz2. This should result in a directory named binutils-2.24 (or whatever the latest version is) in your Cygwin home directory.
4. Download the OpenJDK source by going to the JDK 8 Updates repository, selecting the tag corresponding to your installed JRE version, and clicking bz2. Extract the hsdis directory (found in src\share\tools) to your Cygwin home directory.
5. In the Cygwin Terminal, enter cd hsdis.
6. To build hsdis-amd64.dll, enter make OS=Linux MINGW=x86_64-w64-mingw32 'AR=$(MINGW)-ar' BINUTILS=~/binutils-2.24. To build hsdis-i386.dll, enter make OS=Linux MINGW=i686-w64-mingw32 'AR=$(MINGW)-ar' BINUTILS=~/binutils-2.24. In either case, replace 2.24 with the binutils version you downloaded.

The DLL can now be installed by copying it from hsdis\build\Linux-amd64 or hsdis\build\Linux-i586 to your JRE’s bin\server or bin\client directory.

Note that binutils and OpenJDK use incompatible licenses. As I understand it, this means that it is legal to combine them for personal use, but not to distribute the result. Because of this, I cannot provide prebuilt DLLs.

Bonus tip: if you prefer Intel ASM syntax to AT&T, specify -XX:PrintAssemblyOptions=intel alongside any other PrintAssembly options you use.

大體上按照這個做完之後，最後執行make命令總是報錯。
踩了不少坑，最後還是build出來了。
現在在上面引用內容的基礎上進行完善，希望能幫助更多人

請參照下面的步驟

粗體的部分是在上文基礎上更新的內容

1. 安裝Cygwin
   
   • Select Packages頁面需要注意，在預設的基礎上，需要額外安裝的package有：
     
     • Devel - make
     • Devel - gcc-core
     • Devel - mingw64-x86_64-gcc-core
     • Devel - texinfo
     • Utils - diffutils
2. 安裝完之後啟動Cygwin，則會在Cygwin的安裝目錄下的home下自動生成你的使用者名稱命名的資料夾（下文記之為~）
3. 將下載的binutils解壓到~下
   .../home/使用者名稱/binutils-2.27/
4. 將下載的openJDK原始碼/src/share/tools/hsdis解壓到~下
   .../home/使用者名稱/hsdis/
5. 修改~/hsdis/Makefile檔案，搜尋LIBRARIES，將
   LIBRARIES = $(TARGET_DIR)/bfd/libbfd.a \
$(TARGET_DIR)/opcodes/libopcodes.a \
$(TARGET_DIR)/libiberty/libiberty.a
   修改為
   LIBRARIES = $(TARGET_DIR)/bfd/libbfd.a \
$(TARGET_DIR)/zlib/libz.a \
$(TARGET_DIR)/opcodes/libopcodes.a \
$(TARGET_DIR)/libiberty/libiberty.a
   儲存
6. 在Cygwin視窗輸入cd ~/hsdis，然後輸入命令make OS=Linux MINGW=x86_64-w64-mingw32 'AR=$(MINGW)-ar' BINUTILS=~/binutils-2.27（最後的binutils路徑需要與實際安裝路徑一致）
7. 等待幾分鐘，如果最後沒有報錯，那麼就build成功了，我們需要的hsdis-amd64.dll現在就在~/hsdis/build/Linux-amd64裡面了，把它copy到$JAVA_HOME/jre/bin/server（或$JAVA_HOME/jre/bin/client）下就OK了。