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Cross compiling for RPi - error while loading shared libraries



The 2019 Stack Overflow Developer Survey Results Are InMissing libcofi_rpi.so on host machineMongodb cross compilation on linux for Raspberry Pihow to install cross-compiled OpenCV's libraries on raspbery piCross Compiling Protobuf for Raspberry PiCross-Compiling kernel can't find gccEmbedded Xinu for RPiCross Compile Error Using arm-linux-gnueabihf-gccWhen I compile with arm-linux-gnueabihf-g++ version 4.7, I get error while loading shared libraries: libstdc++.so.6Is it possible to fix the “cannot find -lgcc” and “cannot find -lgcc_s” error messages when using arm-linux-gnueabihf-g++ as a linker?What's causing these crashes after cross-compiling?



.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








3















I'm trying to compile a simple program on my Ubuntu using the ARM cross compile toolchain (arm-linux-gnueabihf-gcc) and run it on my Raspberry Pi. The program is using the wiringPi shared library (wiringPi.so) located in ~/wiringPi/wiringPi on Ubuntu. The code follows:



#include "wiringPi.h"

int main (void)

wiringPiSetup();
pinMode(0, OUTPUT);

for (;;)

digitalWrite(0, HIGH);
delay(500);
digitalWrite(0, LOW);
delay(500);


return 0;



I used the command:



arm-linux-gnueabihf-gcc blinking.c -o blinking -L ~/wiringPi/wiringPi -lwiringPi -I ~/wiringPi/wiringPi


to compile and successfully get the object file, which I then transfer to Raspberry Pi.

However, when trying to run the program on Pi, I get the following error:
./blinking: error while loading shared libraries: libwiringPi.so: cannot open shared object file: No such file or directory



What am I missing?










share|improve this question









New contributor




A6SE is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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  • It looks like it can't find the library on the Pi. Have you installed wiringPi on the Pi (it should be preinstalled in full Raspbian, but not in Raspbian Lite).

    – joan
    Apr 5 at 20:35











  • @joan Haven't installed wiringPi on Raspberry (using Raspbian Lite). I thought the compiler links the shared libraries to the program object files. I guess I need to learn more about dynamic libraries. Just saw the answer by Ralf which explains it.

    – A6SE
    Apr 5 at 20:41






  • 1





    The Answer and comment are true BUT the the library should be installed on standard Raspbian - it is used by gpio. Currently /usr/lib/libwiringPi.so.2.50 (with a link from /usr/lib/libwiringPi.so) I note the OP has not identified what OS is in use.

    – Milliways
    Apr 5 at 22:28


















3















I'm trying to compile a simple program on my Ubuntu using the ARM cross compile toolchain (arm-linux-gnueabihf-gcc) and run it on my Raspberry Pi. The program is using the wiringPi shared library (wiringPi.so) located in ~/wiringPi/wiringPi on Ubuntu. The code follows:



#include "wiringPi.h"

int main (void)

wiringPiSetup();
pinMode(0, OUTPUT);

for (;;)

digitalWrite(0, HIGH);
delay(500);
digitalWrite(0, LOW);
delay(500);


return 0;



I used the command:



arm-linux-gnueabihf-gcc blinking.c -o blinking -L ~/wiringPi/wiringPi -lwiringPi -I ~/wiringPi/wiringPi


to compile and successfully get the object file, which I then transfer to Raspberry Pi.

However, when trying to run the program on Pi, I get the following error:
./blinking: error while loading shared libraries: libwiringPi.so: cannot open shared object file: No such file or directory



What am I missing?










share|improve this question









New contributor




A6SE is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • It looks like it can't find the library on the Pi. Have you installed wiringPi on the Pi (it should be preinstalled in full Raspbian, but not in Raspbian Lite).

    – joan
    Apr 5 at 20:35











  • @joan Haven't installed wiringPi on Raspberry (using Raspbian Lite). I thought the compiler links the shared libraries to the program object files. I guess I need to learn more about dynamic libraries. Just saw the answer by Ralf which explains it.

    – A6SE
    Apr 5 at 20:41






  • 1





    The Answer and comment are true BUT the the library should be installed on standard Raspbian - it is used by gpio. Currently /usr/lib/libwiringPi.so.2.50 (with a link from /usr/lib/libwiringPi.so) I note the OP has not identified what OS is in use.

    – Milliways
    Apr 5 at 22:28














3












3








3








I'm trying to compile a simple program on my Ubuntu using the ARM cross compile toolchain (arm-linux-gnueabihf-gcc) and run it on my Raspberry Pi. The program is using the wiringPi shared library (wiringPi.so) located in ~/wiringPi/wiringPi on Ubuntu. The code follows:



#include "wiringPi.h"

int main (void)

wiringPiSetup();
pinMode(0, OUTPUT);

for (;;)

digitalWrite(0, HIGH);
delay(500);
digitalWrite(0, LOW);
delay(500);


return 0;



I used the command:



arm-linux-gnueabihf-gcc blinking.c -o blinking -L ~/wiringPi/wiringPi -lwiringPi -I ~/wiringPi/wiringPi


to compile and successfully get the object file, which I then transfer to Raspberry Pi.

However, when trying to run the program on Pi, I get the following error:
./blinking: error while loading shared libraries: libwiringPi.so: cannot open shared object file: No such file or directory



What am I missing?










share|improve this question









New contributor




A6SE is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












I'm trying to compile a simple program on my Ubuntu using the ARM cross compile toolchain (arm-linux-gnueabihf-gcc) and run it on my Raspberry Pi. The program is using the wiringPi shared library (wiringPi.so) located in ~/wiringPi/wiringPi on Ubuntu. The code follows:



#include "wiringPi.h"

int main (void)

wiringPiSetup();
pinMode(0, OUTPUT);

for (;;)

digitalWrite(0, HIGH);
delay(500);
digitalWrite(0, LOW);
delay(500);


return 0;



I used the command:



arm-linux-gnueabihf-gcc blinking.c -o blinking -L ~/wiringPi/wiringPi -lwiringPi -I ~/wiringPi/wiringPi


to compile and successfully get the object file, which I then transfer to Raspberry Pi.

However, when trying to run the program on Pi, I get the following error:
./blinking: error while loading shared libraries: libwiringPi.so: cannot open shared object file: No such file or directory



What am I missing?







c wiringpi cross-compilation shared-libraries






share|improve this question









New contributor




A6SE is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









New contributor




A6SE is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question








edited Apr 7 at 19:03







A6SE













New contributor




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Check out our Code of Conduct.









asked Apr 5 at 20:27









A6SEA6SE

1184




1184




New contributor




A6SE is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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New contributor





A6SE is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






A6SE is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












  • It looks like it can't find the library on the Pi. Have you installed wiringPi on the Pi (it should be preinstalled in full Raspbian, but not in Raspbian Lite).

    – joan
    Apr 5 at 20:35











  • @joan Haven't installed wiringPi on Raspberry (using Raspbian Lite). I thought the compiler links the shared libraries to the program object files. I guess I need to learn more about dynamic libraries. Just saw the answer by Ralf which explains it.

    – A6SE
    Apr 5 at 20:41






  • 1





    The Answer and comment are true BUT the the library should be installed on standard Raspbian - it is used by gpio. Currently /usr/lib/libwiringPi.so.2.50 (with a link from /usr/lib/libwiringPi.so) I note the OP has not identified what OS is in use.

    – Milliways
    Apr 5 at 22:28


















  • It looks like it can't find the library on the Pi. Have you installed wiringPi on the Pi (it should be preinstalled in full Raspbian, but not in Raspbian Lite).

    – joan
    Apr 5 at 20:35











  • @joan Haven't installed wiringPi on Raspberry (using Raspbian Lite). I thought the compiler links the shared libraries to the program object files. I guess I need to learn more about dynamic libraries. Just saw the answer by Ralf which explains it.

    – A6SE
    Apr 5 at 20:41






  • 1





    The Answer and comment are true BUT the the library should be installed on standard Raspbian - it is used by gpio. Currently /usr/lib/libwiringPi.so.2.50 (with a link from /usr/lib/libwiringPi.so) I note the OP has not identified what OS is in use.

    – Milliways
    Apr 5 at 22:28

















It looks like it can't find the library on the Pi. Have you installed wiringPi on the Pi (it should be preinstalled in full Raspbian, but not in Raspbian Lite).

– joan
Apr 5 at 20:35





It looks like it can't find the library on the Pi. Have you installed wiringPi on the Pi (it should be preinstalled in full Raspbian, but not in Raspbian Lite).

– joan
Apr 5 at 20:35













@joan Haven't installed wiringPi on Raspberry (using Raspbian Lite). I thought the compiler links the shared libraries to the program object files. I guess I need to learn more about dynamic libraries. Just saw the answer by Ralf which explains it.

– A6SE
Apr 5 at 20:41





@joan Haven't installed wiringPi on Raspberry (using Raspbian Lite). I thought the compiler links the shared libraries to the program object files. I guess I need to learn more about dynamic libraries. Just saw the answer by Ralf which explains it.

– A6SE
Apr 5 at 20:41




1




1





The Answer and comment are true BUT the the library should be installed on standard Raspbian - it is used by gpio. Currently /usr/lib/libwiringPi.so.2.50 (with a link from /usr/lib/libwiringPi.so) I note the OP has not identified what OS is in use.

– Milliways
Apr 5 at 22:28






The Answer and comment are true BUT the the library should be installed on standard Raspbian - it is used by gpio. Currently /usr/lib/libwiringPi.so.2.50 (with a link from /usr/lib/libwiringPi.so) I note the OP has not identified what OS is in use.

– Milliways
Apr 5 at 22:28











1 Answer
1






active

oldest

votes


















4














Shared or dynamic libraries are needed at run time. So you need the library not only on the build system but in on the target system, in this case on the PI.



This is different from static libraries. If you use a static library at build time, all the needed code from the library would be included in the executable, and the library would not be needed to run the program.



So you have to copy the library to the PI into a directory that is searched for shared libraries, such as /usr/lib or /usr/local/lib. You can also set LD_LIBRARY_PATH to point to the library, but then you must make sure it is always set when you want to execute the program.






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    1 Answer
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    active

    oldest

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    4














    Shared or dynamic libraries are needed at run time. So you need the library not only on the build system but in on the target system, in this case on the PI.



    This is different from static libraries. If you use a static library at build time, all the needed code from the library would be included in the executable, and the library would not be needed to run the program.



    So you have to copy the library to the PI into a directory that is searched for shared libraries, such as /usr/lib or /usr/local/lib. You can also set LD_LIBRARY_PATH to point to the library, but then you must make sure it is always set when you want to execute the program.






    share|improve this answer



























      4














      Shared or dynamic libraries are needed at run time. So you need the library not only on the build system but in on the target system, in this case on the PI.



      This is different from static libraries. If you use a static library at build time, all the needed code from the library would be included in the executable, and the library would not be needed to run the program.



      So you have to copy the library to the PI into a directory that is searched for shared libraries, such as /usr/lib or /usr/local/lib. You can also set LD_LIBRARY_PATH to point to the library, but then you must make sure it is always set when you want to execute the program.






      share|improve this answer

























        4












        4








        4







        Shared or dynamic libraries are needed at run time. So you need the library not only on the build system but in on the target system, in this case on the PI.



        This is different from static libraries. If you use a static library at build time, all the needed code from the library would be included in the executable, and the library would not be needed to run the program.



        So you have to copy the library to the PI into a directory that is searched for shared libraries, such as /usr/lib or /usr/local/lib. You can also set LD_LIBRARY_PATH to point to the library, but then you must make sure it is always set when you want to execute the program.






        share|improve this answer













        Shared or dynamic libraries are needed at run time. So you need the library not only on the build system but in on the target system, in this case on the PI.



        This is different from static libraries. If you use a static library at build time, all the needed code from the library would be included in the executable, and the library would not be needed to run the program.



        So you have to copy the library to the PI into a directory that is searched for shared libraries, such as /usr/lib or /usr/local/lib. You can also set LD_LIBRARY_PATH to point to the library, but then you must make sure it is always set when you want to execute the program.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Apr 5 at 20:39









        RalfFriedlRalfFriedl

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