我无法让CMake找到Linaro ARM工具链的线程(我尝试了几种不同的线程)。下面是我做了什么:CMake无法找到Linaro工具链的线程
- 下载gcc-linaro-4.9-2015.05-x86_64_arm-linux-gnueabihf.tar.xz toolchain并提取到
/opt
。 - 下载相应的SYSROOT并提取到
~/sysroot
我创建了一个工具链,Linaro的-arm.cmake文件看起来像这样:
set (CMAKE_SYSTEM_NAME Linux)
include (CMakeForceCompiler)
set (TOOLCHAIN_BASE "/opt/gcc-linaro-4.9-2015.05-x86_64_arm-linux-gnueabihf/")
set (CMAKE_SYSTEM_PROCESSOR armhf-cortexa9)
CMAKE_FORCE_C_COMPILER("${TOOLCHAIN_BASE}/bin/arm-linux-gnueabihf-gcc" GNU)
CMAKE_FORCE_CXX_COMPILER("${TOOLCHAIN_BASE}/bin/arm-linux-gnueabihf-g++" GNU)
set (CMAKE_FIND_ROOT_PATH ${CMAKE_FIND_ROOT_PATH} /home/user/sysroot)
set (CMAKE_SIZEOF_VOID_P 4)
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)
我创建了一个小例子,项目用途线程:
~/threadstest $ ls
CMakeLists.txt main.cpp
~/threadstest $ cat CMakeLists.txt
cmake_minimum_required(VERSION 3.0.0)
project(threads_test)
add_executable(test main.cpp)
find_package(Threads REQUIRED)
target_link_libraries(test, ${CMAKE_THREAD_LIBS_INIT})
~/threadstest $ cat main.cpp
int main() { }
~/threadstest $ mkdir build; cd build
~/threadstest/build $ cmake -DCMAKE_TOOLCHAIN_FILE=~/Toolchain-Linaro-arm.cmake ..
CMake Error at /opt/cmake-3.3.1-Linux-x86_64/share/cmake-3.3/Modules/FindPackageHandleStandardArgs.cmake:148 (message):
Could NOT find Threads (missing: Threads_FOUND)
Call Stack (most recent call first):
/opt/cmake-3.3.1-Linux-x86_64/share/cmake-3.3/Modules/FindPackageHandleStandardArgs.cmake:388 (_FPHSA_FAILURE_MESSAGE)
/opt/cmake-3.3.1-Linux-x86_64/share/cmake-3.3/Modules/FindThreads.cmake:205 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
CMakeLists.txt:8 (find_package)
~/threadstest/build $ cat CMakeFiles/CMakeError.log
Determining if files pthread.h exist failed with the following output:
Change Dir: /home/user/threadstest/arm/CMakeFiles/CMakeTmp
Run Build Command:"/usr/bin/make" "cmTC_37a3c/fast"
/usr/bin/make -f CMakeFiles/cmTC_37a3c.dir/build.make CMakeFiles/cmTC_37a3c.dir/build
make[1]: Entering directory `/home/user/threadstest/arm/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_37a3c.dir/CheckIncludeFiles.c.o
/opt/gcc-linaro-4.9-2015.05-x86_64_arm-linux-gnueabihf//bin/arm-linux-gnueabihf-gcc -o CMakeFiles/cmTC_37a3c.dir/CheckIncludeFiles.c.o -c /home/user/threadstest/arm/CMakeFiles/CMakeTmp/CheckIncludeFiles.c
/opt/gcc-linaro-4.9-2015.05-x86_64_arm-linux-gnueabihf//bin/arm-linux-gnueabihf-gcc: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.14' not found (required by /opt/gcc-linaro-4.9-2015.05-x86_64_arm-linux-gnueabihf//bin/arm-linux-gnueabihf-gcc)
make[1]: Leaving directory `/home/user/threadstest/arm/CMakeFiles/CMakeTmp'
make[1]: *** [CMakeFiles/cmTC_37a3c.dir/CheckIncludeFiles.c.o] Error 1
make: *** [cmTC_37a3c/fast] Error 2
Source:
/* */
#include <pthread.h>
int main(void){return 0;}
我知道pthread库存在:
$ find ~/sysroot -name "*pthread*"
/home/user/sysroot/usr/lib/libpthread_nonshared.a
/home/user/sysroot/usr/lib/libpthread.so.0
/home/user/sysroot/usr/lib/libpthread-2.19-2014.08-1-git.so
/home/user/sysroot/usr/lib/libpthread_p.a
/home/user/sysroot/usr/lib/libpthread.a
/home/user/sysroot/usr/lib/libpthread.so
/home/user/sysroot/usr/include/bits/pthreadtypes.h
/home/user/sysroot/usr/include/pthread.h
它看起来像是仍然在寻找我的家乡的libc,而不是交叉编译环境:
/opt/gcc-linaro-4.9-2015.05-x86_64_arm-linux-gnueabihf//bin/arm-linux-gnueabihf-gcc -o CMakeFiles/cmTC_37a3c.dir/CheckIncludeFiles.co -c /home/user/threadstest/arm/CMakeFiles/CMakeTmp/CheckIncludeFiles.c /opt/gcc-linaro-4.9-2015.05-x86_64_arm -linux-gnueabihf // bin/arm-linux- gnueabihf-gcc:/lib/x86_64-linux-gnu/libc.so.6:未找到版本“GLIBC_2.14”(由/ opt/gcc- Linaro的-4.9-2015.05-x86_64_ar M-Linux的gnueabihf //斌/臂-Linux的gnueabihf-GCC)
看起来像是#2 - 这个工具链需要GLIBC 2.14,我在2.13上。我尝试了较老的工具链,但我必须在那时没有正确的工具链文件。 – zmb
@zmb那么,你的问题解决了吗? 更好地将您的GLIBC升级到2.14 – Arseniy
我最终使用了稍微老一点的工具链,因此我不必更新GLIBC,但是这样可以解决问题。 – zmb