编译的OpenJDK 7

Question

我试图编译的OpenJDK 7上我的手臂的Ubuntu：

make all ALLOW_DOWNLOADS=true DISABLE_HOTSPOT_OS_VERSION_CHECK=ok 

然后我收到此错误：

g++ -DLINUX -D_GNU_SOURCE -DIA32 -I/home/darklord/Develop/jdk7/hotspot/src/share/vm/prims -I/home/darklord/Develop/jdk7/hotspot/src/share/vm -I/home/darklord/Develop/jdk7/hotspot/src/cpu/x86/vm -I/home/darklord/Develop/jdk7/hotspot/src/os_cpu/linux_x86/vm -I/home/darklord/Develop/jdk7/hotspot/src/os/linux/vm -I/home/darklord/Develop/jdk7/hotspot/src/os/posix/vm -I/home/darklord/Develop/jdk7/hotspot/src/share/vm/adlc -I../generated -DASSERT -DTARGET_OS_FAMILY_linux -DTARGET_ARCH_x86 -DTARGET_ARCH_MODEL_x86_32 -DTARGET_OS_ARCH_linux_x86 -DTARGET_OS_ARCH_MODEL_linux_x86_32 -DTARGET_COMPILER_gcc -DCOMPILER2 -DCOMPILER1 -fno-rtti -fno-exceptions -D_REENTRANT -fcheck-new -fvisibility=hidden -m32 -march=i586 -pipe -Werror -g -c -o ../generated/adfiles/adlparse.o /home/darklord/Develop/jdk7/hotspot/src/share/vm/adlc/adlparse.cpp 
g++: error: unrecognized argument in option '-march=i586' 

看来它正试图使用​​的x86配置编译。那么我怎样才能使ARM机器上的构建通过？

Answer 1

您必须为g ++指定适当的架构选项。参考文献here。

-march=name This specifies the name of the target ARM architecture. GCC uses this name to determine what kind of instructions it can emit when generating assembly code. This option can be used in conjunction with or instead of the -mcpu= option. Permissible names are: armv2', armv2a', armv3', armv3m', armv4', armv4t', armv5', armv5t', armv5te', armv6', armv6j', iwmmxt', `ep9312'.

请确保您参考的gcc

正确版本的文档