替方便调试，加-g选项Build整个openjdk6

为方便调试，加-g选项Build整个openjdk6
1.openjdk源码下载

http://download.java.net/openjdk/jdk6/

for file in `grep "\-O3" * -r | awk -F: '{print $1}' `; do sed -i 's/\-O3/\-g/g' $file; done
准备工作做好后，开始build，我所运行的系统环境Ubuntu 11.04

sudo apt-get build-dep? openjdk-6
sudo apt-get install libmotif-dev
export LANG=C ALT_BOOTDIR=/usr/lib/jvm/java-6-openjdk
#Pass "ALLOW_DOWNLOADS=true" to gmake
make all ALLOW_DOWNLOADS=true

HelloWorld例子,HelloWorld.java

?(gdb) list191  char *  classname;192  InvocationFunctions ifn;193};194195/*196 * Entry point.197 */198int199main(int argc, char ** argv)200{(gdb) 

至此，可以随心所欲地对openjdk进行调试了。

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