标签:parallel ice warning ext his tran window 代码 har
最近开始进行JVM的学习。在书中第一步便是编译JDK,参考书是《深入理解Java虚拟机》,并且以后的环境也需要。
刚开始我在ParrotOS系统中编译,出现挺多的问题,也不是什么大问题,一直因为卡的死死的而放弃。
本机只有8G内存想要全部利用,用虚拟机是不行的,于是便选择了Ubuntu的WSL,很棒,配置好环境后一次编译成功。选择WSL的原因还有一个,就是Clion可以直接连接使用。
建议先浏览一下官方文档的环境要求(我的虚拟机编译不成功很可能和内存太小有关)
仔细查看Build-Hardware-Requirements
打开 Microsoft Store--> 搜索Ubuntu --> 安装Ubuntu 18.04 LTS
安装好后,建议更换为国内源,默认下载很慢
第一次使用WSL时可能需要使用管理员权限打开Powershell,运行下面的命令,然后重启:
Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux
sudo apt install build-essential
工具 | 库名称 | 实际 |
---|---|---|
FreeType | The FreeType Project | libfreetype6-dev |
CUPS | Common UNIX Printing System | libcups2-dev |
X11 | X Window System | libx11-dev libxext-dev libxrender-dev libxrandr-dev libxtst-dev libxt-dev |
ALSA | Advanced Linux Sound Architecture | libasound2-dev |
libffi | Portable Foreign Function Interface | libffi-dev |
Autoconf | Extensible Package of M4 Macros | autoconf |
可能在过程中会出现缺少库的问题,使用bash configure后会出现下面的例子,很人性化,根据句子中的提示安装所需的库即可
configure: error: Could not find alsa! You might be able to fix this by running 'sudo apt-get install libfontconfig1-dev'
假设要编译大版本号为N的JDK,我们需要安装版本号为N-1的JDK,因为部分代码是由C、C++编写,大部分还是由Java语言实现。我们要编译的是JDK12,所以需要JDK11来作“Bootstrap JDK”
sudo apt install openjdk-11-jdk
hg clone http://hg.openjdk.java.net/jdk/jdk
下载很慢,建议在官网下载压缩包到本地。往往压缩包直接移动到WSL指定路径中,在WSL中ls命令是不显示的,应从/mnt/目录下找到对应盘符,然后找到文件并复制文件到指定位置。例如:
cp /mnt/f/jdk12.tar.gz /home/h31i
tar -xzvf jdk12.tar.gz
在目录下使用bash configure命令
==要想带着调试、定制化的目的去编译,就要了解OpenJDK提供了编译参数,可以使用“bash configure --help”查看==
cd jdk12
// 编译FastDebug版、仅含Server模式的HotSpot虚拟机
bash configure --enable-debug --with-jvm-variants=server
缺少依赖就安装。成功后会出现以下内容
A new configuration has been successfully created in
/home/h31i/jdk12/build/linux-x86_64-server-fastdebug
using configure arguments '--enable-debug --with-jvm-variants=server'.
Configuration summary:
* Debug level: fastdebug
* HS debug level: fastdebug
* JVM variants: server
* JVM features: server: 'aot cds cmsgc compiler1 compiler2 epsilongc g1gc graal jfr jni-check jvmci jvmti management nmt parallelgc serialgc services shenandoahgc vm-structs zgc'
* OpenJDK target: OS: linux, CPU architecture: x86, address length: 64
* Version string: 12-internal+0-adhoc.h31i.jdk12 (12-internal)
Tools summary:
* Boot JDK: openjdk version "11.0.5" 2019-10-15 OpenJDK Runtime Environment (build 11.0.5+10-post-Ubuntu-0ubuntu1.118.04) OpenJDK 64-Bit Server VM (build 11.0.5+10-post-Ubuntu-0ubuntu1.118.04, mixed mode, sharing) (at /usr/lib/jvm/java-11-openjdk-amd64)
* Toolchain: gcc (GNU Compiler Collection)
* C Compiler: Version 7.4.0 (at /usr/bin/gcc)
* C++ Compiler: Version 7.4.0 (at /usr/bin/g++)
Build performance summary:
* Cores to use: 4
* Memory limit: 8083 MB
/build/文件夹下会生成目标文件
make
然后,漫长的等待伴随沙沙的风扇声(预估30分钟左右)。
Creating images/jmods/java.base.jmod
Creating support/demos/image/jfc/CodePointIM/CodePointIM.jar
Creating support/demos/image/jfc/FileChooserDemo/FileChooserDemo.jar
Creating support/demos/image/jfc/SwingSet2/SwingSet2.jar
Creating support/demos/image/jfc/Font2DTest/Font2DTest.jar
Creating support/demos/image/jfc/J2Ddemo/J2Ddemo.jar
Creating support/demos/image/jfc/Metalworks/Metalworks.jar
Creating support/demos/image/jfc/Notepad/Notepad.jar
Creating support/demos/image/jfc/Stylepad/Stylepad.jar
Creating support/demos/image/jfc/SampleTree/SampleTree.jar
Creating support/demos/image/jfc/TableExample/TableExample.jar
Creating support/demos/image/jfc/TransparentRuler/TransparentRuler.jar
Creating jdk image
Creating CDS archive for jdk image
Stopping sjavac server
Finished building target 'images' in configuration 'linux-x86_64-server-fastdebug'
生成的JDK在/build/linux-x86_64-server-fastdebug/中,测试一下,如:
h31i@hostname:~/jdk12/build/linux-x86_64-server-fastdebug/jdk/bin$ ./java -version
openjdk version "12-internal" 2019-03-19
OpenJDK Runtime Environment (fastdebug build 12-internal+0-adhoc.h31i.jdk12)
OpenJDK 64-Bit Server VM (fastdebug build 12-internal+0-adhoc.h31i.jdk12, mixed mode)
如果在编译过程中出现问题,一句句代码的错误,请在bash configure时加上--disable-warnings-as-errors参数
重新编译时建议先make clean
强迫症(比如我)可以去/build/文件下删除指定文件
下一步就是连接CLion了,再见
标签:parallel ice warning ext his tran window 代码 har
原文地址:https://www.cnblogs.com/glasses/p/12106692.html