ubuntu16下编译openjdk8

一、下载源码：

https://pan.baidu.com/s/1MPjDhvoV8NMxzNx8Qz0wVw

二、安装openjdk7（boot jdk）

    sudo add-apt-repository ppa:openjdk-r/ppa       sudo apt-get update        sudo apt-get install openjdk-7-jdk

三、安装部分依赖包

sudo apt-get install libx11-dev libxext-dev libxrender-dev libxtst-dev libxt-dev sudo apt-get install libcups2-dev sudo apt-get install libfreetype6-dev sudo apt-get install libasound2-dev sudo apt-get ccache

四、进入openjdk 主目录

sh configure --with-debug-level=slowdebug --enable-debug-symbols ZIP_DEBUGINFO_FILES=0 export LANG=C unset CLASSPATH unset JAVA_HOME 

五、

sudo make all CONF=linux-x86_64-normal-server-slowdebug ZIP_DEBUGINFO_FILES=0

编译成功后

openjdk/build/linux-x86_64-normal-server-slowdebug/jdk/bin ./java -version

六、问题解决
1、如果出现寻找boot jdk目录的错误

checking headful support... include support for both headful and headless configure: error: The path of JAVA_HOME_PROCESSED, which resolves as "/usr/lib/jvm/java-1.7.0-openjdk", is not found. configure exiting with result code 1 

解决方式：

cd /usr/lib/jvm  mv java-1.7.0-openjdk-amd64 java-1.7.0-openjdk echo $PATH export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/usr/lib/jvm/java-1.7.0-openjdk/bin #根据上一步的返回值，只修改jdk的目录

2 、内核版本问题

*** This OS is not supported: Linux wang-ThinkPad-T430 4.13.0-43-generic #48~16.04.1-Ubuntu SMP Thu May 17 12:56:46 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux /root/study/openjdk-8u40-src-b25-10_feb_2015/openjdk/hotspot/make/linux/Makefile:238: recipe for target 'check_os_version' failed make[5]: *** [check_os_version] Error 1 

解决方式：

 vi hotspot/make/linux/Makefile SUPPORTED_OS_VERSION = 2.4% 2.5% 2.6% 3% 4% #增加4% OS_VERSION := $(shell uname -r) EMPTY_IF_NOT_SUPPORTED = $(filter $(SUPPORTED_OS_VERSION),$(OS_VERSION))

七、使用gdb调试
新建一个Main.java文件

public class Main{     public static void main(String[] args){       System.out.println("hello world !");     }   } 

编译运行测试

cd /root/study/openjdk-8u40-src-b25-10_feb_2015/openjdk/build/linux-x86_64-normal-server-slowdebug/jdk/bin ./javac Main.java ./java Main

exprot LD_LIBRARY_PATH=/root/study/openjdk-8u40-src-b25-10_feb_2015/openjdk/build/linux-x86_64-normal-server-slowdebug/hotspot/linux_amd64_compiler2/debug

gdb --args ./java Main  #进入gdb, 打断点, 然后运行 (gdb) break thread.cpp:219 (gdb) run  #可以看到下面的输出, 进入到了断点 Starting program: /home/haogrgr/opt/myopenjdk/build/linux-x86_64-normal-server-slowdebug/jdk/bin/java Main [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7ffff7fda700 (LWP 14194)] [Switching to Thread 0x7ffff7fda700 (LWP 14194)]  Breakpoint 1, Thread::Thread (this=0x7ffff000c000)     at /home/haogrgr/opt/myopenjdk/hotspot/src/share/vm/runtime/thread.cpp:219 219   set_stack_base(NULL);  #看看当前的代码 (gdb) l ##注意是小写的L  #输出 214 // JavaThread 215  216  217 Thread::Thread() { 218   // stack and get_thread 219   set_stack_base(NULL); 220   set_stack_size(0); 221   set_self_raw_id(0); 222   set_lgrp_id(-1); 223 

八、在Eclipse中调试代码
1)下载安装Eclipse C/C++ 版

2)导入hotspot工程

  ~进入Eclipse,    选择导入import工程  -> C/C++ -> Existing Code as Makefile Project   ->  单击 Next   -> 进入工程配置界面           Project Name设为hotspot             Existing Code Location是/root/study/openjdk-8u40-src-b25-10_feb_2015/openjdk/hotspot           Toolchain那里选Linux GCC，然后按Finish.     ~把/hotspot/src目录加入源码索引方便代码搜索,    右键hotspot工程  -> properties -> C/C++ General -> Paths and Symbols -> Source Location选项卡                                                                                 -> 选择Add Folder 吧 hotspot/src目录加入    ~设置启动类,    右键工程 -> Debug As -> Debug Configurations -> 右键左边的C/C++ Application -> New -> 进入Main选项卡     在选项卡中:            C/C++ Application     选择   /root/study/openjdk-8u40-src-b25-10_feb_2015/openjdk/build/linux-x86_64-normal-server-slowdebug/jdk/bin/java            因为我们这里不再eclipse里面编译,所以这里选上 Disable auto build     然后切换到Arguments选项卡, 输入Java的参数, 我们这里运行上面的Main类, 于是这里填上   Main   也就是我们要执行的Java程序     然后切换到Environment选项卡, 添加变量             LD_LIBRARY_PATH=/root/study/openjdk-8u40-src-b25-10_feb_2015/openjdk/build/linux-x86_64-normal-server-slowdebug/hotspot/linux_amd64_compiler2/debug            JAVA_HOME=/root/study/openjdk-8u40-src-b25-10_feb_2015/openjdk/build/linux-x86_64-normal-server-slowdebug/jdk/            CLASSPATH=.:/root/study/openjdk-8u40-src-b25-10_feb_2015/openjdk/build/linux-x86_64-normal-server-slowdebug/jdk/bin        (因为我的Main类在/bin目录下)     3)点击下面的Apply保存     4)在eclipse中找到thread.cpp, 在219行打个断点     5)Debug运行上面配置的Debug, 可以看到顺利调到了断点 

文章来源: ubuntu16下编译openjdk8