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Altera_Forum's avatar
Altera_Forum
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16 years ago

Kernel Compile Problem

Hi!

I just downloaded and set up the nios2-linux-20090825 tarball and am trying to build the kernel. I am getting the following error output and not sure why. Any ideas would be greatly appreciated! Note that I am using Ubuntu as my Linux env.

make ARCH=nios2 CROSS_COMPILE=nios2-linux-gnu- O=/home/nick/nios2-linux/uClinux-dist/linux-2.6.x -j4 -C ../linux-2.6 || exit 1

make[1]: Entering directory `/home/nick/nios2-linux/linux-2.6'

GEN /home/nick/nios2-linux/uClinux-dist/linux-2.6.x/Makefile

CHK include/linux/version.h

CHK include/linux/utsrelease.h

SYMLINK include/asm -> include/asm-nios2

Using /home/nick/nios2-linux/linux-2.6 as source for kernel

/home/nick/nios2-linux/linux-2.6 is not clean, please run 'make mrproper'

in the '/home/nick/nios2-linux/linux-2.6' directory.

make[2]: *** [prepare3] Error 1

make[1]: *** [sub-make] Error 2

make[1]: INTERNAL: Exiting with 5 jobserver tokens available; should be 4!

make[1]: Leaving directory `/home/nick/nios2-linux/linux-2.6'

make: *** [linux] Error 1

4 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Please try clean your kernel source tree with,

    cd nios2-linux/linux-2.6

    git clean -f -x -d

    Then go back to uClinux-dist and make again.

    - Hippo
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    >>cd nios2-linux/linux-2.6

    git clean -f -x -d <<

    Thanks! This gets me around my problem.

    Got one more question though. Im still not 100% clear on how to handle the nios2 header file. From what I've gathered so far, one now runs an Altera provided script (sopc-create-header-files) to generate the system header file and then one must copy that file to arch/nios2/include/asm as "custom_fpga.h" Is that essentially correct?
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Yes. It is needed if you are using a custom fpga design rather than the golden ref design from altera.

    - Hippo
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Got it, thanks!

    Ours is a custom system that also includes some kernel drivers that we developed here. So, we will also need to roll those into the kernel eventually. I'm sure that I will have a question or 2 about that when I get around to it since it looks like the Kconfig system in this release is substantially different from previous versions, including the old Microtronix 2.6.11 that I'm accustomed to.