要点in README.INSTALL

1. See sections "Building for the PowerPC architecture" and "Building for the Blackfin" for an example using the CC and LD variable, or "Building for ARM" for an example using the --host argument.
2. In order to cross-compile Xenomai user-space support, you will need to pass a --host and --build option to the configure script. The --host option allow to select the architecture for which the libraries and programs are built. The --build option allows to choose the architecture on which the compilation tools are run, i.e. the system running the configure script.

要点in knd-buildroot o_ctrl xenomai 2.6.3 config.status

1. ../configure --target=arm-buildroot-linux-gnueabihf --host=arm-buildroot-linux-gnueabihf --build=x86_64-unknown-linux-gnu --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc --program-prefix= --disable-gtk-doc --disable-doc --disable-docs --disable-documentation --with-xmlto=no --with-fop=no --enable-ipv6 --enable-static --enable-shared --includedir=/usr/include/xenomai/ --disable-doc-install
2. 输出提示部分配置无效

编译

1. mkdir build && cd build

2. ../configure --target=arm-linux-gnueabihf --host=arm-linux-gnueabihf --build=x86_64-unknown-linux-gnu CFLAGS="-march=armv7-a -mfpu=vfp3" CC=/home/knd/arm-buildroot-linux-gnueabihf_sdk-buildroot/bin/arm-linux-gnueabihf-gcc AR=/home/knd/arm-buildroot-linux-gnueabihf_sdk-buildroot/bin/arm-linux-gnueabihf-ar LD=/home/knd/arm-buildroot-linux-gnueabihf_sdk-buildroot/bin/arm-linux-gnueabihf-ld

3. ../configure --help 可以查看帮助

4. --build 和 CC AR LD 选择一个即可； 由于系统默认安装了cross tool arm-xxxx, 所以这里使用了CC AR LD，避免修改PATH顺序的麻烦

   ../configure --target=arm-linux-gnueabihf --host=arm-linux-gnueabihf CFLAGS="-march=armv7-a -mfpu=vfp3" CC=/home/knd/arm-buildroot-linux-gnueabihf_sdk-buildroot/bin/arm-linux-gnueabihf-gcc AR=/home/knd/arm-buildroot-linux-gnueabihf_sdk-buildroot/bin/arm-linux-gnueabihf-ar LD=/home/knd/arm-buildroot-linux-gnueabihf_sdk-buildroot/bin/arm-linux-gnueabihf-ld

5. make