Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Linux Kernel Compile Problem

Not sure if this is the correct location for this post but here goes anyway

I am building uClinux-dist from nios2-linux06212010

and using nios2-linux-gcc ver. 3.4.6

I am building the kernel up to the following point and then...

LD init/built-in.o

LD .tmp_vmlinux1

kernel/built-in.o(.init.text+0x54c): In function `sched_init_smp':

: undefined reference to `____ilog2_NaN'

kernel/built-in.o(.init.text+0x54c): In function `sched_init_smp':

: relocation truncated to fit: R_NIOS2_CALL26 ____ilog2_NaN

make[2]: *** [.tmp_vmlinux1] Error 1

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

make[1]: Leaving directory `/home/nick/06212010-nios2-linux/nios2-linux/linux-2.6'

make: *** [linux] Error 1

Any help greatly appreciated!

Nick

14 Replies

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

    Any ideas of where to disable this support? I'm only going by the directions given in the Nios Wiki for building this kernel........

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

    hi nipri

    did you try compile with defalt parameters????? at menuconfig ????

    cheers

    Franz Wagner
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    Hello Franz!

    I am running make menuconfig in the uClinux-dist dir., selecting "Altera" as the vendor and "niosnommu" as the product. Also, making sure that libc is set to "none" and selecting the "Default all setting" option....
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    I notice there is a NON_SMP_BUILD option in the Makefile but I'm not sure how to invoke it.... make NON_SMP_BUILD=1 doesn't seem to work...

    I am also noticing that I am getting an error as below... right after the SMP related error... Obviously some sort of a config issue going on here????????

    mm/built-in.o(.text+0x12df4): In function `shmem_getpage':

    : undefined reference to `copy_page'

    mm/built-in.o(.text+0x12df4): In function `shmem_getpage':

    : relocation truncated to fit: R_NIOS2_CALL26 copy_page

    make[2]: *** [.tmp_vmlinux1] Error 1
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    I am not 100%sure but the NON_SMP_BUILD option acts on the compilation process on your computer and will not affect the embedded system/FPGA design you're building. It simply make the compilation process to avoid parallelization on multiple cores/cpus.

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

    @gabribob: I think your right about the NON_SMP_BUILD option as far as I can tell from the documentation

    @ykozlov: I downloaded and untarred the 06212010 dist and ran ./checkout so I'm not exactly sure which branch I have... I'm running the update script now... something I didn't do previously....
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    hi guys.....

    nipri ....dont run the update !!! :S

    iam using nios2-linux-20090730 ....and running perfectly.........

    try use this..........is better than 20100621

    Franz Wagner
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    Your right, the update certainly didn't help!

    I found nios2-linux-20090721, am downloading that now....