Gstreamer application compiling via Eclipse for ARM-board

[savok2165]

Hi all, I need someone who knows about Eclipse settings a bit. I try to compile gstreamer application for ARM board (Phytec-nunki board in my case, IMX6Quad).

My Eclipse version is: Eclipse IDE for C/C++ Developers Version: Photon Release (4.8.0).

I will try to describe step-by-step what I have done, and clarify the issue as much as I can.

First of all I have a simple linux project with the default invokes of gst functions. Smth like:

#include </opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi/usr/include/gstreamer-1.0/gst/gst.h

...

gst_init(&argc, &argv);

 pipeline = gst_pipeline_new("test-pipeline");

...

Then into Properties->C/C++ Build->Settings I set up the next:

GCC C Compiler:

Command: ${CC}

GCC C Compiler->Miscellaneous:

Other flags: `pkg-config --cflags --libs gstreamer-1.0`

GCC C Linker:

Command: ${CC}

Command line pattern: ${LDFLAGS} (added it between {COMMAND} and {FLAGS})

GCC Assembler:

Command: ${AS}

After compiling it in this way I have got an error

….

Building target: gstTry3

Invoking: GCC C Linker

arm-phytec-linux-gnueabi-gcc  -march=armv7-a -marm -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a9 --sysroot=/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed  -o "gstTry3"  ./main.o  

./main.o: In function `gst_message_unref':

/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi/usr/include/gstreamer-1.0/gst/gstmessage.h:379: undefined reference to `gst_mini_object_unref'

makefile:29: recipe for target 'gstTry3' failed

…

Then I decided to include paths to gstreamer libs and so on.

Properties->C/C++ Build->Settings

GCC C Compiler->Includes

/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi/usr/include/gstreamer-1.0

/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi/usr/lib

/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi/usr/lib/glib-2.0/include

/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi/usr/include/glib-2.0

I tried to compile again.

The same error:

….

Building target: gstTry3

Invoking: GCC C Linker

arm-phytec-linux-gnueabi-gcc  -march=armv7-a -marm -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a9 --sysroot=/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed  -o "gstTry3"  ./main.o  

./main.o: In function `gst_message_unref':

/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi/usr/include/gstreamer-1.0/gst/gstmessage.h:379: undefined reference to `gst_mini_object_unref'

makefile:29: recipe for target 'gstTry3' failed

…

After that I found an additional info about linking the .so lib. I did it in the next way:

Properties->C/C++ Build->Settings

GCC C Linker->Libraries

Libraries (-l(lowercase “L”))

/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi/usr/lib/libgstreamer-1.0.so

Library search path (-L)

/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi/usr/lib

During compiling I have got the next error:

Building target: gstTry3

Invoking: GCC C Linker

arm-phytec-linux-gnueabi-gcc  -march=armv7-a -marm -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a9 --sysroot=/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -L/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi/usr/lib -o "gstTry3"  ./main.o   -l/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi/usr/lib/libgstreamer-1.0.so

/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/x86_64-phytecsdk-linux/usr/libexec/arm-phytec-linux-gnueabi/gcc/arm-phytec-linux-gnueabi/7.3.0/real-ld: cannot find -l/opt/phytec-yogurt/BSP-Yocto-i.MX6-PD18.1.0/sysroots/cortexa9hf-neon-phytec-linux-gnueabi/usr/lib/libgstreamer-1.0.so

collect2: error: ld returned 1 exit status

makefile:29: recipe for target 'gstTry3' failed

make: *** [gstTry3] Error 1

I wondered a bit, because there is a libgstreamer-1.0.so is in necessary directory. I have checked it twice.

So, does anyone know what was going wrong and where did I fail?

Feel free to ask me for any additional info.

Thanks in advance!

[igorpadykov]

Hi Sergey

one can look at general guidelines for gstreamer with eclipse

c - Adding GStreamer to Eclipse - Stack Overflow 

https://elinux.org/images/c/c6/Exploring_Linux_Kernel_Source_Code_with_Eclipse.pdf 

Best regards
igor
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