ubuntu 14.04 64位系统编译RT288x_SDK

sudo apt-get install gcc  g++  binutils  patch bzip2  flex  bison  make  autoconf  gettext  texinfo  unzip  sharutils  subversion  libncurses5-dev ncurses-term  zlib1g-dev gawk asciidoc libz-dev git git-man liberror-perl libsigsegv2 mercurial python-iniparse tortoisehg tortoisehg-nautilus python-nautilus build-essential gcc-multilib 

编译buildroot

/opt/buildroot-2012.11./output/toolchain/gcc-4.6./gcc/doc/cppopts.texi:: @itemx must follow @item
make[]: *** [doc/cpp.info] 错误 

原因是ubuntu 14.04版本带的texinfo版本过高导致，需要降级

wget http://ftp.gnu.org/gnu/texinfo/texinfo-4.13a.tar.gz
tar -zxvf texinfo-.13a.tar.gz
cd texinfo-4.13
./configure
make
sudo make install

编译mksquash

#cd RT288x_SDK/toolchain/mksquash_lzma-3.2
#make
#make install (copy lzma_alone to /opt/buildroot-gcc463/usr/bin/)

错误1

/usr/bin/ld: mksquashfs.o: undefined reference to symbol 'log10@@GLIBC_2.2.5'
//lib/x86_64-linux-gnu/libm.so.6: error adding symbols: DSO missing from command line
collect2: error: ld returned  exit status
make[]: *** [mksquashfs] 错误 

上网搜了一下，应该缺少math库的链接导致的，在编译选项中增加-lm可以解决

修改文件RT288x_SDK/toolchain/mksquash_lzma-3.2/squashfs3.2-r2/squashfs-tools/Makefile

mksquashfs: LDLIBS += -lpthread -lunlzma_r -llzma_r -lstdc++ -lm

http://blog.csdn.net/chaehom/article/details/7776047

错误2

uncomp.c:(.text+0x4b)：对‘inflateReset’未定义的引用
uncomp.c:(.text+0x8c)：对‘inflate’未定义的引用
uncomp.c:(.text+0x180)：对‘zError’未定义的引用
/home/yondy/MTK7688_SDK/MediaTek_ApSoC_SDK_4300_20140916/RT288x_SDK/toolchain/mksquash_lzma-3.2/lzma443/C/7zip/Compress/LZMA_C/libunlzma.a(uncomp.o)：在函数‘sqlzma_init’中：
uncomp.c:(.text+0x3a3)：对‘inflateInit_’未定义的引用
collect2: error: ld returned  exit status
make[]: *** [unsquashfs] 错误
make[]:正在离开目录 `/home/yondy/MTK7688_SDK/MediaTek_ApSoC_SDK_4300_20140916/RT288x_SDK/toolchain/mksquash_lzma-3.2/squashfs3.-r2/squashfs-tools'
make: *** [all] 错误 

还是修改修改文件RT288x_SDK/toolchain/mksquash_lzma-3.2/squashfs3.2-r2/squashfs-tools/Makefile

在最后面增加-lz选项

unsquashfs: LDLIBS += -lunlzma -lz

编译完成以后，复制到opt下的相应目录

sudo cp ~/MTK7688_SDK/MediaTek_ApSoC_SDK_4300_20140916/RT288x_SDK/toolchain/mksquash_lzma-3.2/lzma443/C/7zip/Compress/LZMA_Alone/lzma_alone /opt/buildroot-gcc463/usr/bin/

source make报错

error while loading shared libraries: libz.so.: cannot open shared object file: No such file or directory

原因是缺少libz.so.1这个库，可以通过ubuntu的apt-file search查找对应的软件包

sudo apt-get install apt-file

之后更新

sudo apt-file update

然后就可以查找了

$ apt-file search libz.so.
lib32z1: /usr/lib32/libz.so.
lib32z1: /usr/lib32/libz.so.1.2.
libx32z1: /usr/libx32/libz.so.
libx32z1: /usr/libx32/libz.so.1.2.
zlib1g: /lib/x86_64-linux-gnu/libz.so.
zlib1g: /lib/x86_64-linux-gnu/libz.so.1.2.

选择安装lib32z1

sudo apt-get install lib32z1

错误

/home/yondy/MTK7688_SDK/MediaTek_ApSoC_SDK_4300_20140916/RT288x_SDK/source/vendors/Ralink/MT7628/mkimage: invalid entry point -n
make[]: *** [image] 错误
make[]:正在离开目录 `/home/yondy/MTK7688_SDK/MediaTek_ApSoC_SDK_4300_20140916/RT288x_SDK/source/vendors/Ralink/MT7628'
make[]: *** [image] 错误
make[]:正在离开目录 `/home/yondy/MTK7688_SDK/MediaTek_ApSoC_SDK_4300_20140916/RT288x_SDK/source/vendors'
make: *** [image] 错误 

修改RT288x_SDK/source/vendors/Ralink/***/Makefile

ENTRY=`readelf -h $(ROOTDIR)/$(LINUXDIR)/vmlinux | grep "Entry" | awk '{print $$4}'` ; \

为

ENTRY=`readelf -h $(ROOTDIR)/$(LINUXDIR)/vmlinux | grep "入口点地址" | awk '{print $$2}'` ; \

主要原因是原始的编译脚本是英文环境下编写的，在中文的环境下，出现匹配异常

Entry Point: 0x8000C120

入口点地址：0x8000C120

http://www.oschina.net/question/1401799_178896