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Altera_Forum
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15 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
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    15 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
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    15 years ago

    hi nipri

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

    cheers

    Franz Wagner
  • Altera_Forum's avatar
    Altera_Forum
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    15 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
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    15 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
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    15 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
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    15 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
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    15 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
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    15 years ago

    Your right, the update certainly didn't help!

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