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centos7源码编译openjdk11，并使用GDB或者clion+GDB或者vscode+GDB调试openjdk11源码

发表于 更新于 分类于 ， Valine：

centos7源码编译openjdk11，并使用GDB或者clion+GDB或者vscode+GDB调试openjdk11源码

源码下载

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git clone https://github.com/openjdk/jdk.git

切换到openjdk11分支

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git checkout jdk-11+24

执行验证

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git status

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编译工具安装

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sudo yum groupinstall "Development Tools"

准备openjdk10作为N-1版本启动引导

https://jdk.java.net/archive/

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解压

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执行安装脚本

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bash configure --with-boot-jdk=/home/hou/jdk-10.0.1

提示报错1

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checking for X11/extensions/shape.h… configure: error: Could not find all X11 headers (shape.h Xrender.h XTest.h Intrinsic.h). You might be able to fix this by running ‘sudo yum install libXtst-devel libXt-devel libXrender-devel libXi-devel’.

执行安装

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sudo yum install libXtst-devel libXt-devel libXrender-devel libXi-devel

再次执行安装脚本

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bash configure --with-boot-jdk=/home/hou/jdk-10.0.1

提示报错2

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checking cups/ppd.h presence… configure: error: Could not find cups! You might be able to fix this by running ‘sudo yum install cups-devel’.

执行安装

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sudo yum install cups-devel

再次执行安装脚本

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bash configure --with-boot-jdk=/home/hou/jdk-10.0.1

提示报错3

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configure: error: Could not find fontconfig! You might be able to fix this by running ‘sudo yum install fontconfig-devel’.

执行安装

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sudo yum install fontconfig-devel

再次执行安装脚本

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bash configure --with-boot-jdk=/home/hou/jdk-10.0.1

提示报错4

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configure: error: Could not find alsa! You might be able to fix this by running ‘sudo yum install alsa-lib-devel’.

执行安装

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sudo yum install alsa-lib-devel

再次执行安装脚本

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bash configure --with-boot-jdk=/home/hou/jdk-10.0.1

提示构建成功

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执行make，生成镜像

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make images

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创建成功

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验证安装

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./build/*/images/jdk/bin/java -version

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执行成功

启用调试模式

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bash configure --with-boot-jdk=/home/hou/jdk-10.0.1 --disable-warnings-as-errors --with-debug-level=slowdebug --with-jvm-variants=server
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# disable-warnings-as-errors选项是禁止把warning 当成error
# --with-debug-level=slowdebug。用来设置编译的级别，可选值为release、fastdebug、slowde-bug，越往后进行的优化措施就越少，带的调试信息就越多。默认值为release。slowdebug 含有最丰富的调试信息，没有这些信息，很多执行可能被优化掉，我们单步执行时，可能看不到一些变量的值。所以最好指定slowdebug 为编译级别。
# with-jvm-variants 编译特定模式的HotSpot虚拟机，可选值：server、client、minimal、core、zero、custom

编译

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make images

编译成功

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执行测试

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./build/*/images/jdk/bin/java -version

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GDB调试

​ 没有任何工具的情况下使用这种方式最方便，也是最直观的。

进入到执行目录下

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cd /home/hou/jdk/build/linux-x86_64-normal-server-slowdebug/jdk/bin

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执行gdb命令

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gdb ./java

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设置断点

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b JLI_Launch

执行命令

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run -version

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单步调试

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n

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退出调试

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quit

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CLION+GDB调试

使用强大的ide将会使调试代码更加方便，clion的缺点是不是开源免费的，下面演示一下

下载并安装clion

https://www.jetbrains.com/zh-cn/clion/download/#section=windows

下载linux版本

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解压进入到目录中

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cd /home/hou/clion-2024.3.1/bin

执行运行脚本

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./clion.sh

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打开项目

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配置debug

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配置地址

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打印断点

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安装gdbserver

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sudo yum install gdb-gdbserver

进入目录下

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cd /home/hou/jdk/build/linux-x86_64-normal-server-slowdebug/jdk/bin

执行gdb服务命令

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gdbserver :1234 ./java -version

可以看到已经启动

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启动调试

可以看到已经在断点处了

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vscode+GDB调试

GDB直接调试不那么直观，看着很难受，使用开源vscode工具，再也不用担心clion的license到期了，非常方便直观可以进行断点调试。

vscode下载

https://code.visualstudio.com/updates/v1_85

安装好后启动

输入code就可以启动

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code

打开源码目录

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安装插件

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添加配置

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选择这个

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配置launch.json

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{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "type": "by-gdb",
            "request": "launch",
            "name": "Launch(remote)",
            "program": "/home/hou/jdk/build/linux-x86_64-normal-server-slowdebug/jdk/bin/java",
            "cwd": "${workspaceRoot}",
            "remote": {
                "enabled": true,
                "address": ":1234",
                "mode": "remote",
                "execfile": "/home/hou/jdk/build/linux-x86_64-normal-server-slowdebug/jdk/bin/java"
            }
        }
    ]
}

安装gdbserver

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sudo yum install gdb-gdbserver

进入目录下

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cd /home/hou/jdk/build/linux-x86_64-normal-server-slowdebug/jdk/bin

执行gdb服务命令

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gdbserver :1234 ./java -version

可以看到已经启动

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设置断点

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启动调试

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可以看到已经捕获到断点，尽情调试吧

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