robamu-org/beaglebone-crosscompiling

Cross-compiling and debugging C/C++ applications for the Raspberry Pi with CMake, the TCF-Agent and Eclipse

beaglebone-crosscompiling's Issues

Update BBBToolchain.cmake for pkg-config to work properly

I added the following lines to BBBToolchain.cmake for pkg-config to work properly:

# adjust pkg-config
set(ENV{PKG_CONFIG_PATH} "$ENV{PKG_CONFIG_PATH}\;${CMAKE_SYSROOT}/usr/lib/pkgconfig\;${CMAKE_SYSROOT}/usr/lib/arm-linux-gnueabihf/pkgconfig\;${CMAKE_SYSROOT}/usr/share/pkgconfig")
set(ENV{PKG_CONFIG_LIBDIR} "${CMAKE_SYSROOT}/usr/lib/arm-linux-gnueabihf/pkgconfig\;${CMAKE_SYSROOT}/usr/share/pkgconfig")
set(ENV{PKG_CONFIG_SYSROOT_DIR} ${CMAKE_SYSROOT})
# required on Windows - extra flag to pkg-config
if(WIN32)
	set(PKG_CONFIG_ARGN "--dont-define-prefix")
endif(WIN32)

Rootfs path must not contain spaces

I have a project which contains find_package(CURL REQUIRED) command. It fails during configure step and complains it cannot find header files for curl.
The package libcurl4-openssl-dev is installed.
It appeared CMAKE_LIBRARY_ARCHITECTURE was empty when rootfs path contained spaces. Some autodetection magic was broken by that. When I created a symlink and specified rootfs path without spaces, the configure step succeeded.

Either that should be fixed, or a warning must be given in the docs.

Library not found during link

First of all, I actually use my own helloworld project with your toolchain file, but I'm not sure if it could make any difference.

I get the following error during CMake configure stage:

[proc] Executing command: "C:\Program Files\CMake\bin\cmake.exe" --no-warn-unused-cli "-DCMAKE_MAKE_PROGRAM:STRING=C:/Users/azarubkin/Documents/Platformio Projects/ninja.exe" -DCMAKE_EXPORT_COMPILE_COMMANDS:BOOL=TRUE -DCMAKE_BUILD_TYPE:STRING=Debug -DCMAKE_TOOLCHAIN_FILE:FILEPATH=BBBToolchain.cmake "-Hc:/Users/azarubkin/Documents/Platformio Projects/helloworld" "-Bc:/Users/azarubkin/Documents/Platformio Projects/helloworld/build" -G Ninja
[cmake] Not searching for unused variables given on the command line.
[cmake] -- Beagle Bone Black sysroot: C:/Users/azarubkin/Documents/beaglebone/rootfs
[cmake] -- No CROSS_COMPILE environmental variable set, using default ARM linux cross compiler name arm-linux-gnueabihf
[cmake] -- Using sysroot path: C:/Users/azarubkin/Documents/beaglebone/rootfs
[cmake] -- The CXX compiler identification is GNU 8.3.0
[cmake] -- Detecting CXX compiler ABI info
[cmake] -- Detecting CXX compiler ABI info - failed
[cmake] -- Check for working CXX compiler: C:/SysGCC/beaglebone/bin/arm-linux-gnueabihf-g++.exe
[cmake] -- Check for working CXX compiler: C:/SysGCC/beaglebone/bin/arm-linux-gnueabihf-g++.exe - broken
[cmake] CMake Error at C:/Program Files/CMake/share/cmake-3.21/Modules/CMakeTestCXXCompiler.cmake:62 (message):
[cmake]   The C++ compiler
[cmake] 
[cmake]     "C:/SysGCC/beaglebone/bin/arm-linux-gnueabihf-g++.exe"
[cmake] 
[cmake]   is not able to compile a simple test program.
[cmake] 
[cmake]   It fails with the following output:
[cmake] 
[cmake]     Change Dir: C:/Users/azarubkin/Documents/Platformio Projects/helloworld/build/CMakeFiles/CMakeTmp
[cmake]     
[cmake]     Run Build Command(s):C:/Users/AZARUB~1/DOCUME~1/PLATFO~1/ninja.exe cmTC_c1a52 && [1/2] Building CXX object CMakeFiles/cmTC_c1a52.dir/testCXXCompiler.cxx.o
[cmake]     [2/2] Linking CXX executable cmTC_c1a52
[cmake]     FAILED: cmTC_c1a52 
[cmake]     cmd.exe /C "cd . && C:\SysGCC\beaglebone\bin\arm-linux-gnueabihf-g++.exe --sysroot=C:/Users/azarubkin/Documents/beaglebone/rootfs -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-abi=hard  CMakeFiles/cmTC_c1a52.dir/testCXXCompiler.cxx.o -o cmTC_c1a52   && cd ."
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: warning: libm.so.6, needed by c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so, not found (try using -rpath or -rpath-link)
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `acos@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `hypot@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `cos@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `fmod@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `tan@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `atan@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `asin@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `sqrt@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `ceil@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `atan2@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `sin@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `tanh@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `sinh@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `pow@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `log@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `floor@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `log10@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `exp@GLIBC_2.4'
[cmake]     c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/bin/ld.exe: c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/libstdc++.so: undefined reference to `cosh@GLIBC_2.4'
[cmake]     collect2.exe: error: ld returned 1 exit status
[cmake]     ninja: build stopped: subcommand failed.

The libraries search dirs obtained by calling C:\SysGCC\beaglebone\bin\arm-linux-gnueabihf-g++.exe --sysroot=C:/Users/azarubkin/Documents/beaglebone/rootfs -print-search-dirs are:

libraries: =c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/;c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/;c:/sysgcc/beaglebone/bin/../lib/gcc/;c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/lib/arm-linux-gnueabihf/8/;c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/lib/arm-linux-gnueabihf/;c:/sysgcc/beaglebone/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../arm-linux-gnueabihf/lib/;C:/Users/azarubkin/Documents/beaglebone/rootfs/lib/arm-linux-gnueabihf/8/;C:/Users/azarubkin/Documents/beaglebone/rootfs/lib/arm-linux-gnueabihf/;C:/Users/azarubkin/Documents/beaglebone/rootfs/lib/;C:/Users/azarubkin/Documents/beaglebone/rootfs/usr/lib/arm-linux-gnueabihf/8/;C:/Users/azarubkin/Documents/beaglebone/rootfs/usr/lib/arm-linux-gnueabihf/;C:/Users/azarubkin/Documents/beaglebone/rootfs/usr/lib/

The file libm.so.6 is located in C:\Users\azarubkin\Documents\beaglebone\rootfs\lib\arm-linux-gnueabihf, which is in the list, but why the linker cannot find it?