[ell-i-developers] Re: Embedding python in emulator

  • From: Asif Sardar <engr.asif.sardar@xxxxxxxxxxxxxx>
  • To: Jose Granados Vergara <jose.granados@xxxxxx>
  • Date: Tue, 14 Oct 2014 20:04:21 +0300

Thanks Jose,

On native platform, its working for me as well. I think I have to
re-compile or cross-compile 32-bit python using ARM tools e.g. using
something like CXX=arm-none-linux-gnueabi-g++ and then rebuild robot
framework.

I have to compile the emulator files using arm-tool chain and I am
including the 32-bit python in it built with native gcc toolchain.

If anyone else has some suggestions that I will really appreciate!

On Tue, Oct 14, 2014 at 7:58 PM, Jose Granados Vergara <jose.granados@xxxxxx
> wrote:

>  This worked for me:
>
> something.c:
>
> #include "Python.h"
>
> int main()
> {
>     Py_Initialize();
>     return 0;
> }
>
> ~$ g++ -I/usr/include/python2.7 something.c -o something -lpython2.7
>
>
>  -Jose
>   ------------------------------
> *De:* Asif Sardar [engr.asif.sardar@xxxxxxxxxxxxxx]
> *Enviado:* martes, 14 de octubre de 2014 07:40 p.m.
> *Para:* ell-i-developers@xxxxxxxxxxxxx
> *CC:* Lari Lehtomäki; Jose Granados Vergara
> *Asunto:* Fwd: Embedding python in emulator
>
>   Hi,
>
>  Has anybody embedded python in C/C++ application. My platform is 64-bit
> and python binaries I am using for Runtime/emulator is 32-bit. I have added
> following flags in CFLAGS and LDFLAGS to compile and link the c/c++ files
> in emulator with (#include </path/32-bit-python/include/python.h>)
>
>  CFLAGS += -I/opt/pym32/bin/include/python2.7 -fno-strict-aliasing -DNDEBUG 
> -g -fwrapv -O3 -Wall -Wstrict-prototypes
>
>  LDFLAGS += -L/opt/pym32/lib/python2.7/config -lpthread -ldl -lutil -lm 
> -lpython2.7 -Xlinker -export-dynamic
>
>  The files compiles but breaks when linking. Can anybody help with
> following errors:
>
>  -----------------------
>  ./libsystem_stm32f4discovery.a(Register.o): In function
> `Register::GPIO_Callback_Python(std::string, std::string, unsigned int,
> std::string)':
> /home/asif/Ell-i-Working-Directory/Ell-i-Software-Development/Runtime/stm32/tests/robot_library/../../emulator/src/Register.cpp:41:
> undefined reference to `Py_Initialize'
> /home/asif/Ell-i-Working-Directory/Ell-i-Software-Development/Runtime/stm32/tests/robot_library/../../emulator/src/Register.cpp:43:
> undefined reference to `PyRun_SimpleStringFlags'
> /home/asif/Ell-i-Working-Directory/Ell-i-Software-Development/Runtime/stm32/tests/robot_library/../../emulator/src/Register.cpp:44:
> undefined reference to `Py_Finalize'
> /home/asif/Ell-i-Working-Directory/Ell-i-Software-Development/Runtime/stm32/tests/robot_library/../../emulator/src/Register.cpp:41:
> undefined reference to `Py_Initialize'
> /home/asif/Ell-i-Working-Directory/Ell-i-Software-Development/Runtime/stm32/tests/robot_library/../../emulator/src/Register.cpp:43:
> undefined reference to `PyRun_SimpleStringFlags'
> /home/asif/Ell-i-Working-Directory/Ell-i-Software-Development/Runtime/stm32/tests/robot_library/../../emulator/src/Register.cpp:44:
> undefined reference to `Py_Finalize'
> ./libsystem_stm32f4discovery.a(system_stm32f4xx.o): In function
> `__exchange_and_add':
> /usr/include/c++/4.8/ext/atomicity.h:49: undefined reference to
> `__atomic_fetch_add_4'
> /usr/include/c++/4.8/ext/atomicity.h:49: undefined reference to
> `__atomic_fetch_add_4'
> /usr/include/c++/4.8/ext/atomicity.h:49: undefined reference to
> `__atomic_fetch_add_4'
> /usr/include/c++/4.8/ext/atomicity.h:49: undefined reference to
> `__atomic_fetch_add_4'
>  -----------------------
>
>
> ---------- Forwarded message ----------
> From: Asif Sardar <engr.asif.sardar@xxxxxxxxxxxxxx>
> Date: Mon, Oct 13, 2014 at 6:17 PM
> Subject: Embedding python in emulator
> To: Pekka Nikander <pekka.nikander@xxxxxx>
>
>
> Hi Pekka,
>
>  I am trying to include python.h in emulator/inc/register.h
>
>  I have to include cflags and ldflags in Makefile system of emulator e.g.
>
>  -I/opt/include/python2.7 -fno-strict-aliasing -DNDEBUG -g -fwrapv -O3 -Wall 
> -Wstrict-prototypes
>
>  -L/opt/lib/python2.7/config -lpthread -ldl -lutil -lm -lpython2.7 -Xlinker 
> -export-dynamic
>
>  However, I am getting:
> ----------------------------------------------------
>  g++ -m32 -march=i386 -m32 -march=i386 -Xlinker -export-dynamic -o
> robot_library  robot_library.o stm32f4discovery.o libSPI.a "-L."
> "-L/home/asif/Ell-i-Working-Directory/Ell-i-Software-Development/Runtime/stm32/tests/robot_library/../../variants/stm32f4discovery"
> "-lsystem_stm32f4discovery" -lstdc++
> ./libsystem_stm32f4discovery.a(Register.o): In function
> `Register::GPIO_Callback_Python(std::string, std::string, unsigned int,
> std::string)':
> /home/asif/Ell-i-Working-Directory/Ell-i-Software-Development/Runtime/stm32/tests/robot_library/../../emulator/src/Register.cpp:41:
> undefined reference to `Py_Initialize'
> /home/asif/Ell-i-Working-Directory/Ell-i-Software-Development/Runtime/stm32/tests/robot_library/../../emulator/src/Register.cpp:43:
> undefined reference to `PyRun_SimpleStringFlags'
> /home/asif/Ell-i-Working-Directory/Ell-i-Software-Development/Runtime/stm32/tests/robot_library/../../emulator/src/Register.cpp:44:
> undefined reference to `Py_Finalize'
> /home/asif/Ell-i-Working-Directory/Ell-i-Software-Development/Runtime/stm32/tests/robot_library/../../emulator/src/Register.cpp:41:
> undefined reference to `Py_Initialize'
> /home/asif/Ell-i-Working-Directory/Ell-i-Software-Development/Runtime/stm32/tests/robot_library/../../emulator/src/Register.cpp:43:
> undefined reference to `PyRun_SimpleStringFlags'
> /home/asif/Ell-i-Working-Directory/Ell-i-Software-Development/Runtime/stm32/tests/robot_library/../../emulator/src/Register.cpp:44:
> undefined reference to `Py_Finalize'
> ./libsystem_stm32f4discovery.a(system_stm32f4xx.o): In function
> `__exchange_and_add':
> /usr/include/c++/4.8/ext/atomicity.h:49: undefined reference to
> `__atomic_fetch_add_4'
> /usr/include/c++/4.8/ext/atomicity.h:49: undefined reference to
> `__atomic_fetch_add_4'
> /usr/include/c++/4.8/ext/atomicity.h:49: undefined reference to
> `__atomic_fetch_add_4'
> /usr/include/c++/4.8/ext/atomicity.h:49: undefined reference to
> `__atomic_fetch_add_4'
> collect2: error: ld returned 1 exit status
> make[1]: *** [robot_library] Error 1
>  -----------------------------------
>
>  Can you help me in including these flags in the Makefile system and link
> the python with it? It will help a lot, to call from c to python
> independently.
>
>
>
>  --
>
>
>
> *With Best Regards, Asif Sardar. +358 43 8265795 <%2B358%2043%208265795> *
>
>
>
>  --
>
>
>
> *With Best Regards, Asif Sardar. +358 43 8265795 <%2B358%2043%208265795> *
>



-- 



*With Best Regards,Asif Sardar.+358 43 8265795*

Other related posts: