Compiling module on OpenWRT: make can't find build directory

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My setup:



  • OpenWRT 18.06.1

  • Raspberry Pi 2 B

  • Kernel 4.9.120

Attempting to build a very simple hello world kernel module results in the following error:



# make
make -C /lib/modules/4.9.120/build M=/c_programming/hellomodule modules
make[1]: *** /lib/modules/4.9.120/build: No such file or directory. Stop.
make: *** [Makefile:6: all] Error 2


Makefile isn't a problem, since it works on Ubuntu just fine. What I've done so far:



  • I've checked and the directory indeed is missing.

  • Checked with opkg find '*headers*' however there's no packages linux-headers-<release> like on Ubuntu.

How should I proceed to actually build this thing ?






kernel-modules c openwrt






share

























    up vote
    0
    down vote

    favorite












    My setup:



    • OpenWRT 18.06.1

    • Raspberry Pi 2 B

    • Kernel 4.9.120

    Attempting to build a very simple hello world kernel module results in the following error:



    # make
    make -C /lib/modules/4.9.120/build M=/c_programming/hellomodule modules
    make[1]: *** /lib/modules/4.9.120/build: No such file or directory. Stop.
    make: *** [Makefile:6: all] Error 2


    Makefile isn't a problem, since it works on Ubuntu just fine. What I've done so far:



    • I've checked and the directory indeed is missing.

    • Checked with opkg find '*headers*' however there's no packages linux-headers-<release> like on Ubuntu.

    How should I proceed to actually build this thing ?






    kernel-modules c openwrt






    share























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      My setup:



      • OpenWRT 18.06.1

      • Raspberry Pi 2 B

      • Kernel 4.9.120

      Attempting to build a very simple hello world kernel module results in the following error:



      # make
      make -C /lib/modules/4.9.120/build M=/c_programming/hellomodule modules
      make[1]: *** /lib/modules/4.9.120/build: No such file or directory. Stop.
      make: *** [Makefile:6: all] Error 2


      Makefile isn't a problem, since it works on Ubuntu just fine. What I've done so far:



      • I've checked and the directory indeed is missing.

      • Checked with opkg find '*headers*' however there's no packages linux-headers-<release> like on Ubuntu.

      How should I proceed to actually build this thing ?






      kernel-modules c openwrt






      share













      My setup:



      • OpenWRT 18.06.1

      • Raspberry Pi 2 B

      • Kernel 4.9.120

      Attempting to build a very simple hello world kernel module results in the following error:



      # make
      make -C /lib/modules/4.9.120/build M=/c_programming/hellomodule modules
      make[1]: *** /lib/modules/4.9.120/build: No such file or directory. Stop.
      make: *** [Makefile:6: all] Error 2


      Makefile isn't a problem, since it works on Ubuntu just fine. What I've done so far:



      • I've checked and the directory indeed is missing.

      • Checked with opkg find '*headers*' however there's no packages linux-headers-<release> like on Ubuntu.

      How should I proceed to actually build this thing ?






      kernel-modules c openwrt




      kernel-modules c openwrt





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      asked 6 mins ago









      Sergiy Kolodyazhnyy

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