在Windows11下编译openjdk 21

下载openjdk 20作为boot jdk，假设我下载解压后的路径如下

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D:\Downloads\jdk-20.0.2_windows-x64_bin\jdk-20.0.2

首先下载Cygwin，因为这是在Windows中模拟UNIX，在安装程序界面选择要安装的包

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autoconf 
  make 
  zip 
  unzip 
  perl  
  bash  
  awk  
  grep  
  sed  
  diffutils  
  git

第二安装Visual Studio 2022，要安装desktop C++，要包括msvc 143和Windows 11 SDK，或者Windows 10 SDK

第三将Windows的设置中，把语言改为英文

时间和语言->把使用Unicode UTF-8这个选项打开

如果不行就把Windows显示语言改为英语（美国）

在Windows菜单中选择x64 Native Tools Command Prompt for VS进入命令行，这是因为要使用VC++的编译器进行编译

bash 复制代码

C:\Program Files\Microsoft Visual Studio\2022\Professional>cd c:\cygwin64

c:\cygwin64>cd bin

c:\cygwin64\bin>bash.exe --login

上述是在命令行中调用cywin

测试cl和link是否好用，一定要显示英文才可以

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firew@JINGXIN-HONOR /cygdrive/d/openjdk
$ cl
Microsoft (R) C/C++ Optimizing Compiler Version 19.44.35222 for x64
Copyright (C) Microsoft Corporation.  All rights reserved.

usage: cl [ option... ] filename... [ /link linkoption... ]

$ link
link: missing operand
Try 'link --help' for more information.

然后进入openjdk源码目录，切到jdk-17+30分支，创建debug编译脚本

bash 复制代码

#!/usr/bin/env bash

# 设置环境变量
export BOOT_JDK="/d/Downloads/jdk-20.0.2_windows-x64_bin/jdk-20.0.2"
export FREETYPE_HOME="/c/msys64/mingw64"

# 转换为Windows路径格式（如果需要）
BOOT_JDK_WIN="D:\\Downloads\\jdk-20.0.2_windows-x64_bin\\jdk-20.0.2"
FREETYPE_HOME_WIN="C:\\msys64\\mingw64"

echo "Configuring OpenJDK 21..."

# 配置命令
bash configure \
    MAKE=/usr/bin/make \
    --with-debug-level=slowdebug \
    --with-native-debug-symbols=external \
  --with-toolchain-type=microsoft \
  --with-toolchain-path="/cygdrive/c/Program Files/Microsoft Visual Studio/2022/Professional/VC/Tools/MSVC/14.44.35207/bin/HostX64/x64" \
  --with-boot-jdk="$BOOT_JDK_WIN" \
  --disable-warnings-as-errors

# 检查配置结果
if [ $? -eq 0 ]; then
    echo "Configuration successful, starting build..."
    make images JOBS=8
    #make CONF=windows-x86_64-server-slowdebug all JOBS=8
else
    echo "Configuration failed!"
    read -p "Press enter to continue..."
    exit 1
fi

如果要编译release版本，则采用以下脚本

bash 复制代码

#!/usr/bin/env bash

# 设置环境变量
export BOOT_JDK="/d/Downloads/jdk-20.0.2_windows-x64_bin/jdk-20.0.2"
export FREETYPE_HOME="/c/msys64/mingw64"

# 转换为Windows路径格式（如果需要）
BOOT_JDK_WIN="D:\\Downloads\\jdk-20.0.2_windows-x64_bin\\jdk-20.0.2"
FREETYPE_HOME_WIN="C:\\msys64\\mingw64"

echo "Configuring OpenJDK 21..."

#--with-freetype=bundled \
#--with-freetype-include="$FREETYPE_HOME_WIN/include/freetype2" \
#--with-freetype-lib="$FREETYPE_HOME_WIN/lib" \
# 配置命令
bash configure \
    MAKE=/usr/bin/make \
    --with-debug-level=release \
  --with-toolchain-type=microsoft \
  --with-toolchain-path="/cygdrive/c/Program Files/Microsoft Visual Studio/2022/Professional/VC/Tools/MSVC/14.44.35207/bin/HostX64/x64" \
  --with-boot-jdk="$BOOT_JDK_WIN" \
  --disable-warnings-as-errors

# 检查配置结果
if [ $? -eq 0 ]; then
    echo "Configuration successful, starting build..."
    make images JOBS=8
else
    echo "Configuration failed!"
    read -p "Press enter to continue..."
    exit 1
fi

然后在上述cygwin命令好输入

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bash build.sh