编译Hotspot源码 - JDK 11

环境推荐

1. Mac 或者 ubuntu
2. 预先安装一个jdk

第一步

下载源码

方式一

# OpenJDK是用mercurial管理的
sudo yum install mercurial

# 下载
hg clone http://hg.openjdk.java.net/aarch64-port/jdk8u
hg clone https://hg.openjdk.org/jdk/jdk11/

# Mac m1 jdk11源码
https://github.com/openjdk/jdk11u/tags

方式二

# 下载压缩包
# github
https://github.com/openjdk/jdk

第二步

// 源码根目录 ， 要在控制台执行， idea 的控制台有bug
cd /Users/aurora/JDK/jdk11u-jdk  

sh ./get_source.sh

sh configure \
  --with-jvm-variants=server \
  --disable-warnings-as-errors \
  --disable-ccache \
 --with-target-bits=64 \
  --with-boot-jdk=/Library/Java/JavaVirtualMachines/zulu-8.jdk/Contents/Home \
  --with-toolchain-path=/Applications/Xcode.app/Contents/Developer/usr/bin
  
# 其它配置
  --with-target-bits=32 \
  --enable-debug \
  --enable-dtrace \
  --disable-ccache \
  --disable-warnings-as-errors \
  --with-jvm-variants=server \
  --with-boot-jdk=/Library/Java/JavaVirtualMachines/zulu-11.jdk/Contents/Home \
  --with-toolchain-path=/Applications/Xcode.app/Contents/Developer/usr/bin
   
  --with-boot-jdk=/usr/lib/jvm/java-8-openjdk-arm64 \
  --with-freetype-include=/usr/include/freetype2 \
  --with-freetype-lib=/usr/lib/aarch64-linux-gnu

第三步

make all
make clean

# item2终端运行
make images

# 指定版本编译 mac / ubuntu
make images CONF=macosx-aarch64-normal-server-release
make images CONF=linux-aarch64-normal-server-release
 
 #指定make 目录运行
make -C ~/USpace/jdk/jdk11u/ images CONF=macosx-aarch64-normal-server-release

第四步：关联JDK源码并修改

JDK home path: /Users/aurora/CodeSpace/jdk/jdk11u/build/macosx-aarch64-normal-server-release/images/jdk

添加JDK

关联源码

问题解决

The tested number of bits in the target (64) differs from the number of bits expected to be found in the target (32)

解决：

1. 文件路径：/Users/aurora/JDK/jdk-jdk-11-28/make/autoconf/platform.m4
2. 找到 The tested number of bits in the target 所在位置
3. 修改这两个参数值为64，注意不要有空格
    TESTED_TARGET_CPU_BITS=64
    OPENJDK_TARGET_CPU_BITS=64

JDK源码添加中文注释后编译乱码

// 进入以下目录
cd jdk/make/common

//编辑文件
vi SetupJavaCompilers.gmk 

// 找到“-encoding ascii“，替换成 ”-encoding utf-8“

解决中文乱码

configure: error: Could not find freetype!

  sh configure \
  --enable-debug \
  --with-freetype-include=/usr/include/freetype2 \
  --with-freetype-lib=/usr/lib/aarch64-linux-gnu

参考文章

【1】B站CodeSheep

【2】CodeSheep博客

https://www.holelin.cn/2024/01/11/java/%E7%BC%96%E8%AF%91OpenJDK/index.html