Luckfox Forums

通过./build-linux.sh -t rv1106 -a armv7l -d yolov5，编译报错：
CMake Error at /usr/share/cmake-3.10/Modules/CMakeTestCCompiler.cmake:52 (message):
The C compiler

"/home/hang/rv_1106_nfs/arm-rockchip830-linux-uclibcgnueabihf/bin/arm-rockchip830-linux-uclibcgnueabihf-gcc"

is not able to compile a simple test program.

It fails with the following output:

Change Dir: /home/hang/rv_1106_nfs/rknn_model_zoo/build/build_rknn_yolov5_demo_rv1106_linux_armv7l_Release/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_11c64/fast"
/usr/bin/make -f CMakeFiles/cmTC_11c64.dir/build.make CMakeFiles/cmTC_11c64.dir/build
make[1]: Entering directory '/home/hang/rv_1106_nfs/rknn_model_zoo/build/build_rknn_yolov5_demo_rv1106_linux_armv7l_Release/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_11c64.dir/testCCompiler.c.o
/home/hang/rv_1106_nfs/arm-rockchip830-linux-uclibcgnueabihf/bin/arm-rockchip830-linux-uclibcgnueabihf-gcc -o CMakeFiles/cmTC_11c64.dir/testCCompiler.c.o -c /home/hang/rv_1106_nfs/rknn_model_zoo/build/build_rknn_yolov5_demo_rv1106_linux_armv7l_Release/CMakeFiles/CMakeTmp/testCCompiler.c
Linking C executable cmTC_11c64
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_11c64.dir/link.txt --verbose=1
/home/hang/rv_1106_nfs/arm-rockchip830-linux-uclibcgnueabihf/bin/arm-rockchip830-linux-uclibcgnueabihf-gcc CMakeFiles/cmTC_11c64.dir/testCCompiler.c.o -o cmTC_11c64
/home/hang/rv_1106_nfs/arm-rockchip830-linux-uclibcgnueabihf/bin/../lib/gcc/arm-rockchip830-linux-uclibcgnueabihf/8.3.0/../../../../arm-rockchip830-linux-uclibcgnueabihf/bin/ld.bfd: /home/hang/rv_1106_nfs/arm-rockchip830-linux-uclibcgnueabihf/bin/../libexec/gcc/arm-rockchip830-linux-uclibcgnueabihf/8.3.0/liblto_plugin.so: error loading plugin: /home/hang/rv_1106_nfs/arm-rockchip830-linux-uclibcgnueabihf/bin/../libexec/gcc/arm-rockchip830-linux-uclibcgnueabihf/8.3.0/liblto_plugin.so: file too short
collect2: error: ld returned 1 exit status
CMakeFiles/cmTC_11c64.dir/build.make:97: recipe for target 'cmTC_11c64' failed
make[1]: *** [cmTC_11c64] Error 1
make[1]: Leaving directory '/home/hang/rv_1106_nfs/rknn_model_zoo/build/build_rknn_yolov5_demo_rv1106_linux_armv7l_Release/CMakeFiles/CMakeTmp'
Makefile:126: recipe for target 'cmTC_11c64/fast' failed
make: *** [cmTC_11c64/fast] Error 2




CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:3 (project)


-- Configuring incomplete, errors occurred!
See also "/home/hang/rv_1106_nfs/rknn_model_zoo/build/build_rknn_yolov5_demo_rv1106_linux_armv7l_Release/CMakeFiles/CMakeOutput.log".
See also "/home/hang/rv_1106_nfs/rknn_model_zoo/build/build_rknn_yolov5_demo_rv1106_linux_armv7l_Release/CMakeFiles/CMakeError.log".

请问是怎么回事，非常感谢回复

您好，请问您使用的编译环境是什么？这可能和Ubuntu的版本有关。

这也可能是liblto_plugin.so软链接丢失导致，查看是否有软链接 也可以选择直接跳过编译器检测，编辑/usr/share/cmake-3.10/Modules/CMakeTestCCompiler.cmake 但跳过编译器检测可能有其他风险

Ubuntu是Ubuntu 18.04.6 LTS的版本，很奇怪，软连接是存在的呀
(base) hang@ubuntu:~/rv_1106_nfs/arm-rockchip830-linux-uclibcgnueabihf/libexec/gcc/arm-rockchip830-linux-uclibcgnueabihf/8.3.0$ ls -al /home/hang/rv_1106_nfs/arm-rockchip830-linux-uclibcgnueabihf/bin/../libexec/gcc/arm-rockchip830-linux-uclibcgnueabihf/8.3.0/liblto_plugin.so
-rwxrwxrwx 1 hang hang 22 Jul 10 16:55 /home/hang/rv_1106_nfs/arm-rockchip830-linux-uclibcgnueabihf/bin/../libexec/gcc/arm-rockchip830-linux-uclibcgnueabihf/8.3.0/liblto_plugin.so

如果有软链接的话ls -al 后会有 “ -> liblto_plugin.so.0.0.0 ”
例如： 如果有SDK的话还是建议直接将<SDK Path>/linux/toolchain/arm-rockchip830-linux-uclibcgnueabihf/bin 设置为环境变量，防止移动到其他目录丢失链接，在.bashrc 或者其他终端设置中添加

那可能liblto_plugin.so.0.0.0软连接丢失

但是我按照官网的途径下载了SDK
git clone https://gitee.com/LuckfoxTECH/luckfox-pico.git
然后我也安装了交叉工具链
cd {SDK_PATH}/tools/linux/toolchain/arm-rockchip830-linux-uclibcgnueabihf/

./env_install_toolchain.sh(我没加source)

如果其他目录还有空间，不要将SDK放置在 NFS 映射的文件夹上。

换个路径真的好了，ls -al能找到软连接了
非常感谢！
我还想问下为什么不能挂载在nfs上面？

nfs可能因为文件系统差异或者配置而丢失软链接，nfs包括共享文件夹仅推荐用作普通存储，需要多次编译使用的工具或SDK不要放到其中视为物理存储空间使用，避免网络波动等状况导致工作异常。

了解了，非常感谢！