ubuntu上编译hotspot遇到的问题

ubuntu版本14.04

1.内核版本不支持

“*** This OS is not supported:" 'uname -a'; exit 1;

解决办法

修改hotspot/make/linux/Makefile

（1）SUPPORTED_OS_VERSION = 2.4% 2.5% 2.6% 2.7% 3.7%

或者

（2）注释掉

#ifeq ($(DISABLE_HOTSPOT_OS_VERSION_CHECK)$(EMPTY_IF_NOT_SUPPORTED),)
#   $(QUIETLY) >&2 echo "*** This OS is not supported:" `uname -a`; exit 1;
#endif

2.各种.h找不到

解决办法

为bits,sys,gnu建立软链

sudo ln -s /usr/include/x86_64-linux-gnu/gun /usr/include/gnu

3.64位的ubuntu找不到32位的文件

/usr/include/gnu/stubs.h:7:27: fatal error: gnu/stubs-32.h: No such file or directory

解决办法

sudo apt-get install g++-multilib

4. cc1plus: error: the "stabs" debug format cannot be used with pre-compiled headers [-Werror=deprecated]

build的JVM肯定是32位的。
要加上ARCH_DATA_MODEL=64 来build 64位的

5.头文件宏定义冲突