I am able to cross compile hello world program in raspberry pi from my Ubuntu 14.04 PC through eclipse. But I am not able to cross compile opencv programs. I am getting following error:
15:19:20 ** Incremental Build of configuration Debug for project MyFirstRaspProg **
make all
Building target: MyFirstRaspProg
Invoking: Cross G++ Linker
arm-linux-gnueabi-g++ -L/home/tvsm/raspberry -L/usr/lib/gcc-cross/arm-linux-gnueabi/4.7 -L/usr/lib/i386-linux-gnu/lib -L/usr/arm-linux-gnueabi/lib -o "MyFirstRaspProg" ./src/MyFirstRaspProg.o -lopencv_highgui
/usr/lib/gcc-cross/arm-linux-gnueabi/4.7/../../../../arm-linux-gnueabi/bin/ld: cannot find -lopencv_highgui
collect2: error: ld returned 1 exit status
make: * [MyFirstRaspProg] Error 1
15:19:20 Build Finished (took 56ms)
Can anyone help how to resolve this?
The error is because you have specified arm-linux-gnueabi-g++ to refer a library, which is not available. So you need to cross compile the necessary library for ARM platform and link it during build.
Follow the below link to cross compile the opencv on Ubuntu machine.
http://www.ridgesolutions.ie/index.php/2013/05/24/building-cross-compiling-opencv-for-linux-arm/
You will be left with an "install" folder at the end of the process.
In eclipse specify the library path and include path to "lib" & "include" folders in the "install" folder respectively.
Related
I was wondering if you could help me with some issues and questions I have for developing for the i.MX6 SoloX in bare-metal. I was looking at this link https://community.nxp.com/docs/DOC-106253 and downloaded the files there to use as an example of how to develop bare-metal c code for the i.MX6.
Then I setup my eclipse environment according to this tutorial https://community.nxp.com/docs/DOC-103736 but just the toolchain because I'm not interested in processor expert.
Since I'm working on Linux I didn't installed the Code Sourcery thing, instead I'm working with the gcc-arm-none-eabi which I installed using:
$ sudo apt-get install gcc-arm-none-eabi
And therefore I had to change the cs-rm and cs-make for rm and make respectively.
And I was able to create an eclipse project with the downloaded code and configure the project to make it work, nevertheless, I had the first error:
main.c:8:19: fatal error: stdio.h: No such file or directory
#include <stdio.h>
^
compilation terminated.
make: *** [cortex_A9/main.o] Error 1
cortex_A9/subdir.mk:24: recipe for target 'cortex_A9/main.o' failed
And I was able to solve it adding "/usr/include" in the include directories at project > properties. But I'm not sure if this is a correct way of solving this error.
After fixing this error I got a new one:
syscalls.c:168:1: error: unknown type name 'caddr_t'
caddr_t _sbrk(int incr)
And for solving that I had to include explicitly the file "/usr/include/x86_64-linux-gnu/sys/types.h" and also I don't know if that is the correct way to solve it.
Now having eliminated those two errors I have the following one:
Building target: imx6-A9.elf
Invoking: Cross ARM C Linker
arm-none-eabi-gcc -mcpu=cortex-a9 -march=armv7-a -marm -mlittle-endian -mfloat-abi=softfp -mfpu=neon -mno-unaligned-access -fno-zero-initialized-in-bss -O0 -g -T "/home/mmalagon/iMX6/MX6SX_hello_MFG/cortex_A9/mx6slx.ld" -nostartfiles -Wl,-Map,"imx6-A9.map" -o "imx6-A9.elf" ./cortex_A9/main.o ./cortex_A9/syscalls.o ./cortex_A9/uart.o
/usr/lib/gcc/arm-none-eabi/4.9.3/../../../arm-none-eabi/bin/ld: cannot find -lg
makefile:42: recipe for target 'imx6-A9.elf' failed
/usr/lib/gcc/arm-none-eabi/4.9.3/../../../arm-none-eabi/bin/ld: cannot find -lc
collect2: error: ld returned 1 exit status
make: *** [imx6-A9.elf] Error 1
Which I haven't been able to resolve.
I don't know if this error is a consequence of the way I solved the two previous errors.
Does anybody know how to properly setup eclipse for i.MX6 bare-metal development?
Thank you very much for helping!!
If you want to develop bare-metal code for the i.MX6SoloX without using CodeSourcery then you need to execute this:
sudo apt-get install gcc-arm-none-eabi libnewlib-arm-none-eabi -y
And then choose "Custom (arm-none-eabi-gcc)" at Project>Settings>C/C++ Build in the 'Toolchains' tab.
while I was following this tutorial
https://developer.mbed.org/cookbook/eclipse-for-building-and-debugging
I run on a error building the project on Eclipse (I followed all the steps untill the first build project at which point I received the following error):
../../external/mbed/libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC11UXX/TOOLCHAIN_GCC_ARM/TARGET_LPC11U24_401/LPC11U24.ld:50 cannot move location counter backwards (from 00000238 to 00000200) collect2: error: ld returned 1 exit status make: *** [LPC11U24/FileTest.elf] Error 1
Since ld is involved I think the problem is related to the linker but I have no clue what to do and where to look at. I'm working in Debian 32 bit and Eclipse LUNA.
I found the problem, I selected the wrong toolchain: linux gcc instead of cross gcc.
I am using eclipse to execute a cuda program. I have downloaded a CUDA PLUGIN for
eclipse. When I execute sample cuda program given by plugin its fine but when I try
to execute any other program I am getting error undefined reference to main...
make
Building target: Add_cuda
Invoking: NVCC Linker
nvcc -L/export/trainee3/dinesh/cuda5.0/lib64 -o "Add_cuda" ./mycuda.o -lcudart
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/crt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
collect2: ld returned 1 exit status
I found in stackoverflow that some times we get this problem because of system startup file
I used flag -nostartfiles but it is not working in my case..
I have included lib64 and include path in c++ build.
So any suggestion to over come this problem....
We've been over this already.
Use nsight eclipse edition instead.
If you have cuda 5.0 or 5.5 installed, just type nsight in a terminal session.
If you really want to use that Eclipse CUDA plugin (which is no longer supported, I don't believe), then start with the C++ sample project, which you agree now and back then would work. Then modify the source code in that project. Don't create your own project.
Install CUDA 5. It comes with Nsight Eclipse version. Very Elegant to use. NV Visual profiler is integrated with Nsight. Syntax highlighting and debug mode are very easy to use.
I have a Beaglebone (Rev: A6) and i want to develop C/C++ program in windows 7 using Eclipse and then transfer executable in the board. But i'm having trouble setting up compiler/debugger/toolchain needed for Beaglebone. Searching the internet only gives me how to setup environment in Linux like installing 'arm-linux-gnueabi', setting up the paths to 'includes' etc. I need a step by step instruction to set up the environment in Eclipse in a windows machine. Can anyone help ?
I have tried these steps:
1. I have GNUARM installed on windows.
2. On eclipse IDE i open a C++ project with Corss GCC.
3. From project -> properties -> C/C++ build -> settings i add 'arm-elf-' to every cross compiler command.
4. From the GNUARM installation directory i add few path to '.../include/' in the 'C++ General -> paths and symbos'.
my 'build all' shows something as below:
10:32:20 **** Build of configuration Debug for project h ****
make all
Building file: ../src/hello.cpp
Invoking: Cross G++ Compiler
arm-elf-g++ -I"C:\GNUARM\include\c++\4.1.1" -I"C:\GNUARM\include\c++\4.1.1\arm-elf" - I"C:\GNUARM\include\c++\4.1.1\backward" -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP - MF"src/hello.d" -MT"src/hello.d" -o "src/hello.o" "../src/hello.cpp"
Finished building: ../src/hello.cpp
Building target: h
Invoking: Cross G++ Linker
arm-elf-g++ -L"C:\GNUARM\lib\gcc\arm-elf\4.1.1\include" -o "h" ./src/hello.o
Finished building target: h
10:32:23 Build Finished (took 2s.967ms)
It is simple 'Hello world' printing program. From the project explorer 'Debug->src->hello.o -[arm/le]' i copy it and when run on beaglebone with
chmod ugo+x hello.o
./hello.o
-sh: ./hello.o: cannot execute binary file
the above massage is printed. I don't know what i did wrong. Perhaps the ARM environment in eclipse is set up incorrectly.
Isn't hello.o the pre-linked object file (just the compiled content of hello.cpp)? It doesn't contain the startup code or any library functions. The linker adds those to produce the final output.
Don't you want to run the linker ouput file h (which should already be executable)?
i got my answer here. http://www.acmesystems.it/foxg20_eclipse_windows_c. CodeSourcery was the toolchain that i was looking for and this also explains how to setup the corss compiling environment.
I am following this guide:
to get opencv to run on ubuntu 12.04 with eclipse juno CDT. But I get this error when I build all:
Building target: DisplayImage
Invoking: GCC C++ Linker
g++ -L/usr/local/lib -o "DisplayImage" ./src/DisplayImage.o -lopencv_core\ opencv_imgproc\ opencv_highgui
/usr/bin/ld: cannot find -lopencv_core opencv_imgproc opencv_highgui
collect2: ld returned 1 exit status
make: *** [DisplayImage] Error 1
In eclipse I have added:
opencv_core opencv_imgproc opencv_highgui
in the "Libraries (-l)" box. If I run (as described in the guide):
pkg-config --libs opencv
I get:
/usr/local/lib/libopencv_calib3d.so /usr/local/lib/libopencv_contrib.so /usr/local/lib/libopencv_core.so /usr/local/lib/libopencv_features2d.so /usr/local/lib/libopencv_flann.so /usr/local/lib/libopencv_gpu.so /usr/local/lib/libopencv_highgui.so /usr/local/lib/libopencv_imgproc.so /usr/local/lib/libopencv_legacy.so /usr/local/lib/libopencv_ml.so /usr/local/lib/libopencv_nonfree.so /usr/local/lib/libopencv_objdetect.so /usr/local/lib/libopencv_photo.so /usr/local/lib/libopencv_stitching.so /usr/local/lib/libopencv_ts.so /usr/local/lib/libopencv_video.so /usr/local/lib/libopencv_videostab.so
so they seem to exists. But the names are a bit different compared to the guide. I have tried to change the includes in eclipse to:
libopencv_core.so libopencv_imgproc.so opencv_highgui
but that does not help. Any ideas?
EDIT:
This is how I setup the includes:
And this is how I setup the libs(linker):
Ah each lib must be on a separate line in the C++linker->Libraries box.
It seems that you forget to set Library search path(-L) to usr/local/lib/ in C++ Linker->Libraries:
Update: from your screenshot I see that all your libs are in one line. Take a look again at my screenshot.