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
編譯buildroot
/opt/buildroot-2012.11.1/output/toolchain/gcc-4.6.3/gcc/doc/cppopts.texi:772: @itemx must follow @item make[2]: *** [doc/cpp.info] 錯誤 1
原因是ubuntu 14.04版本帶的texinfo版本過高導致，需要降級
wget http://ftp.gnu.org/gnu/texinfo/texinfo-4.13a.tar.gz tar -zxvf texinfo-4.13a.tar.gz cd texinfo-4.13 ./configure make sudo make install
編譯mksquash
#cd RT288x_SDK/toolchain/mksquash_lzma-3.2 #make #make install (copy lzma_alone to /opt/buildroot-gcc463/usr/bin/)
錯誤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 1 exit status make[1]: *** [mksquashfs] 錯誤 1
上網搜了一下，應該缺少math庫的鏈接導致的，在編譯選項中增加-lm可以解決
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
錯誤2
uncomp.c:(.text+0x4b)：對‘inflateReset’未定義的引用 uncomp.c:(.text+0x8c)：對‘inflate’未定義的引用 uncomp.c:(.text+0x180)：對‘zError’未定義的引用 /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)：在函數‘sqlzma_init’中： uncomp.c:(.text+0x3a3)：對‘inflateInit_’未定義的引用 collect2: error: ld returned 1 exit status make[1]: *** [unsquashfs] 錯誤 1 make[1]:正在離開目錄 `/home/yondy/MTK7688_SDK/MediaTek_ApSoC_SDK_4300_20140916/RT288x_SDK/toolchain/mksquash_lzma-3.2/squashfs3.2-r2/squashfs-tools' make: *** [all] 錯誤 2
還是修改修改文件RT288x_SDK/toolchain/mksquash_lzma-3.2/squashfs3.2-r2/squashfs-tools/Makefile
在最后面增加-lz選項
unsquashfs: LDLIBS += -lunlzma -lz
編譯完成以后，復制到opt下的相應目錄
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報錯
error while loading shared libraries: libz.so.1: cannot open shared object file: No such file or directory
原因是缺少libz.so.1這個庫，可以通過ubuntu的apt-file search查找對應的軟件包
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.1 lib32z1: /usr/lib32/libz.so.1 lib32z1: /usr/lib32/libz.so.1.2.8 libx32z1: /usr/libx32/libz.so.1 libx32z1: /usr/libx32/libz.so.1.2.8 zlib1g: /lib/x86_64-linux-gnu/libz.so.1 zlib1g: /lib/x86_64-linux-gnu/libz.so.1.2.8
選擇安裝lib32z1
sudo apt-get install lib32z1
錯誤
/home/yondy/MTK7688_SDK/MediaTek_ApSoC_SDK_4300_20140916/RT288x_SDK/source/vendors/Ralink/MT7628/mkimage: invalid entry point -n make[2]: *** [image] 錯誤 1 make[2]:正在離開目錄 `/home/yondy/MTK7688_SDK/MediaTek_ApSoC_SDK_4300_20140916/RT288x_SDK/source/vendors/Ralink/MT7628' make[1]: *** [image] 錯誤 2 make[1]:正在離開目錄 `/home/yondy/MTK7688_SDK/MediaTek_ApSoC_SDK_4300_20140916/RT288x_SDK/source/vendors' make: *** [image] 錯誤 2
修改RT288x_SDK/source/vendors/Ralink/***/Makefile
ENTRY=`readelf -h $(ROOTDIR)/$(LINUXDIR)/vmlinux | grep "Entry" | awk '{print $$4}'` ; \
為
ENTRY=`readelf -h $(ROOTDIR)/$(LINUXDIR)/vmlinux | grep "入口點地址" | awk '{print $$2}'` ; \
主要原因是原始的編譯腳本是英文環境下編寫的，在中文的環境下，出現匹配異常
Entry Point: 0x8000C120
入口點地址：0x8000C120
http://www.oschina.net/question/1401799_178896