android2.3.4----1.ubuntu12.04 64位编译android2.3.4

1. 编译工具链
   解压 tools 下的
   arm-linux-gcc-4.3.2.tgz
   arm-none-linux-gnueabi-arm-2008q3-72-for-linux.tar.bz2
   到/opt/6410/android目录下
   cong@ubuntu:/opt/6410/android$ ls
   4.3.2 arm-none-linux-gnueabi

2. 编uboot (板子是256M的nand)
   用的编译器是在arm-linux-gcc-4.3.2中的
   cong@ubuntu:/work/an6410/ubootviMakefile161CROSSCOMPILE=/opt/6410/android/4.3.2/bin/arm−none−linux−gnueabi−162exportCROSSCOMPILEcong@ubuntu:/work/an6410/uboot make smdk6410_config
   Configuring for smdk6410 board…
   cong@ubuntu:/work/an6410/ubootmake生成u−boot.bin3.编译kernel修改Makefilecong@ubuntu:/work/an6410/kernel vi Makefile
   192 ARCH ?= arm
   193 CROSS_COMPILE ?= /opt/6410/android/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-
   make -j4

3. 编译android
   机子是 ubuntu 12.04LTS 64位,所以需要修改这几个Android.mk
   4.1 按手册修改Android.mk
   ./external/clearsilver/cgi/Android.mk
   ./external/clearsilver/java-jni/Android.mk
   ./external/clearsilver/util/Android.mk
   ./external/clearsilver/cs/Android.mk
   找到
   LOCAL_CFLAGS += -m32
   LOCAL_LDFLAGS += -m32
   替换为
   LOCAL_CFLAGS += -m64
   LOCAL_LDFLAGS += -m64
   记得保存文件。
   第二步：
   修改文件 ./build/core/main.mk
   找到
   ifneq (i686,(findstringi686,(build_arch)))
   替换为
   ifneq (64,(findstring64,(build_arch)))
   4.2 出错处理
   a. 添加 -fpermissive
   frameworks/base/libs/utils/RefBase.cpp: In member function ‘void android::RefBase::weakref_type::trackMe(bool, bool)’:
   frameworks/base/libs/utils/RefBase.cpp:483:67: error: passing ‘const android::RefBase::weakref_impl’ as ‘this’ argument of ‘void android::RefBase::weakref_impl::trackMe(bool, bool)’ discards qualifiers [-fpermissive]
   解决方法:
   frameworks/base/libs/utils/Android.mk
   60 LOCAL_CFLAGS += -DLIBUTILS_NATIVE=1 $(TOOL_CFLAGS) –fpermissive

b. 这个需要改javadoc
Could not load ‘clearsilver-jni’
java.library.path = out/host/linux-x86/lib
make: * [out/target/common/docs/doc-comment-check-timestamp] Error 45
解决方法: 先是将默认工具链中的javadoc替换成jdk1.5的这个地方是可以编过去的.
但是在接下来的编译中还会出现错误
c. 终极大招
默认的工具链jdk1.6.0_23好像是32位的,所以需要替换为64位的,
下载jdk-6u35-linux-x64.bin,然后解压到android源码目录下
修改build-android
6 #export PATH=PWD/jdk1.6.023/bin:PATH
7 export PATH=PWD/jdk1.6.035/bin:PATH
d. 接下来就是一些小问题了
prebuilt/linux-x86/sdl/include/SDL/SDL_syswm.h:55:22: fatal error: X11/Xlib.h: No such file or directory
compilation terminated.
make: * [out/host/linux-x86/obj/EXECUTABLES/emulator_intermediates/android/main.o] Error 1
解决方法:
sudo apt-get install libx11-dev

e. 将 -Werror去掉
:0:0: error: “_FORTIFY_SOURCE” redefined [-Werror]
:0:0: note: this is the location of the previous definition
cc1plus: all warnings being treated as errors
make: * [out/host/linux-x86/obj/EXECUTABLES/obbtool_intermediates/Main.o] Error 1
cong@ubuntu:/work/an6410/2.3.4$ vi frameworks/base/tools/obbtool/Android.mk
16 LOCAL_CFLAGS := -Wall
在frameworks/base/tools/obbtool/Android.mk文件中还有一处-Werror也要去掉

最后就编过去了.
Generated: (out/target/product/OK6410/android-info.txt)
Target system fs image: out/target/product/OK6410/obj/PACKAGING/systemimage_intermediates/system.img
Install system fs image: out/target/product/OK6410/system.img
Target ram disk: out/target/product/OK6410/ramdisk.img
Target userdata fs image: out/target/product/OK6410/userdata.img
Installed file list: out/target/product/OK6410/installed-files.txt
生成文件系统:
./make_rootfs

1. 系统启动
   5.1 卡在untracked pid exited
   request_suspend_state: wakeup (3->0) at 92374521625 (2011-08-22 04:17:52.176252436 UTC)
   init: untracked pid 59 exited
   init: untracked pid 63 exited
   request_suspend_state: wakeup (0->0) at 107827143745 (2011-08-22 04:18:07.628874511 UTC)
   解决方法: 将gralloc.default.so push到 /system/lib/hw目录下
   cong@ubuntu:/work/an6410$ adb push ./2.3.4/out/target/product/OK6410/obj/SHARED_LIBRARIES/gralloc.default_intermediates/LINKED/gralloc.default.so /system/lib/hw
2. NFS启动
   a. make menuconfig
   去掉initramfs的支持,要不系统会用initramfs文件系统
   General setup —>
   [*] Initial RAM filesystem and RAM disk (initramfs/initrd) support
   默认编译出来的内核己经支持nfs文件系统,如果没有支持还需要添加
   b. 设置uboot
   setenv bootargs “root=/dev/nfs nfsroot=192.168.6.220:/work/an6410/2.3.4/rootfs init=/init ip=192.168.6.221:192.168.6.220:192.168.6.1:255.255.255.0:cong:eth0:off console=ttySAC0,115200”