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Original question:

Unable to cross compile helloworld example with Linux SDK v6.3.0.106 for OMAPL138 SoC

Unable to cross compile hello world example

Mitesh Hiran
Mastermind 6215 points
Other Parts Discussed in Thread: OMAPL138

Hello, I have installed the latest SDK for OMAPL138 on Linux machine and am trying to cross compile hello world example as per the documentation. 

https://software-dl.ti.com/processor-sdk-linux/esd/docs/06_03_00_106/linux/Overview/GCC_ToolChain.html

but I get following error: 

fatal error: stdio.h: No such file or directory

command to build example:

/opt/ti-processor-sdk-linux-omapl138-lcdk-06-03-00-106/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-oe-linux-gnueabi/arm-oe-linux-gnueabi-gcc ./helloworld.c -o helloworld

Please, let me know if the path is incorrect or how to fix this. thanks 

  • 0
    TI__Guru 69602 points

    Did you run the `host# source linux-devkit/environment-setup` script to activate the cross-compile environment?

    Regards, Andreas

  • 0 in reply to Andreas Dannenberg
    Mastermind 6215 points

    Hi Andreas, tried this but doesn't seems to make any difference. 

    Host:~/Desktop/HelloWorld$ source /opt/ti-processor-sdk-linux-omapl138-lcdk-06.03.00.106/linux-devkit/environment-setup
    [linux-devkit]:~/Desktop/HelloWorld> sudo /opt/ti-processor-sdk-linux-omapl138-lcdk-06.03.00.106/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-oe-linux-gnueabi/arm-oe-linux-gnueabi-gcc ./helloworld.c -o helloworld[sudo] password for miteshhiran:
    ./helloworld.c:1:10: fatal error: stdio.h: No such file or directory
    #include <stdio.h>
    ^~~~~~~~~
    compilation terminated.
    [linux-devkit]:~/Desktop/HelloWorld>

  • +1 in reply to Mitesh Hiran
    TI__Guru 69602 points

    Hi Mitesh,

    looks like the instructions in that (old) documentation are incorrect. The purpose of sourcing the 'environment-setup' script is to setup everything needed for cross-compilation. However invoking the compiler directly (and without adding any flags to it) defeats the purpose really. Can you please try this here:

    # Note how the cross-compile compiler definition specifies a sysroot too, which is needed to find headers, libraries, etc.
[linux-devkit]:~/ti-processor-sdk-linux-omapl138-lcdk-06.03.00.106> echo $CC
arm-oe-linux-gnueabi-gcc --sysroot=/home/a0797059/ti-processor-sdk-linux-omapl138-lcdk-06.03.00.106/linux-devkit/sysroots/armv5e-oe-linux-gnueabi

# Now let's compile the simple C code...
[linux-devkit]:~/ti-processor-sdk-linux-omapl138-lcdk-06.03.00.106> $CC ./helloworld.c -o helloworld

# Basic check that we in fact managed to cross-compile something...
[linux-devkit]:~/ti-processor-sdk-linux-omapl138-lcdk-06.03.00.106> file helloworld
helloworld: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.3, for GNU/Linux 3.2.0, BuildID[sha1]=1ddd4be37f4606f6bded3fff68b882d666b4a393, with debug_info, not stripped

    Regards, Andreas