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我想使用 cmake 和我从这里下载的预编译 linaro 工具链交叉编译 raspberrypi2:git clone https://github.com/raspberrypi/tools

当我尝试对我的项目执行 cmake 时,出现以下错误:

/myhome/libs/raspberry/tools/arm-bcm2708/gcc-linaro-arm-linux-
gnueabihf-raspbian-x64//bin/arm-linux-gnueabihf-gcc 
--sysroot=/myhome/libs/raspberry/tools/
arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/libc/ 
CMakeFiles/cmTC_9fb02.dir/testCCompiler.c.o -o cmTC_9fb02 -rdynamic


 /myhome/libs/raspberry/tools/arm-bcm2708/gcc-linaro-arm-linux-
gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../..
/../../arm-linux-gnueabihf/bin/ld:   cannot find crt1.o: 
No such file or directory

该文件位于以下目录中:

 /myhome/libs/raspberry/tools/arm-bcm2708/gcc-linaro-arm-
 linux-gnueabihf-raspbian-x64/arm-linux-gnueabihf/libc/
 usr/lib/arm-linux-gnueabihf

我的 cmake 工具链文件如下所示

 set(CMAKE_SYSROOT "/myhome/libs/raspberry/sysroot/")
 set(tools "/myhome/libs/raspberry/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/")
 set(CMAKE_C_COMPILER "${tools}/bin/arm-linux-gnueabihf-gcc")
 set(CMAKE_CXX_COMPILER "${tools}/bin/arm-linux-gnueabihf-g++")

 set(CMAKE_EXPORT_COMPILE_COMMANDS=ON)
 set(CMAKE_FIND_ROOT_PATH "${CMAKE_SYSROOT}")
 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
 set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
 set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
 set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)

sysroot 目录是我安装树莓派映像的位置。我有点困惑这应该是覆盆子图像的根还是 linaro 工具链的路径。

谢谢你的帮助

4

1 回答 1

0

好的,问题是

  set(CMAKE_SYSROOT "/myhome/libs/raspberry/sysroot/")

是一个空目录,因为我将 jessie 映像挂载到该目录,但重新启动后挂载不再位于该目录中。

于 2017-02-24T19:57:01.273 回答