i686-unknown-linux-gnu-gcc: undefined reference to `__memcpy_chk'

[Yann E. MORIN]

Hello Chrissy, All!

On Wednesday 10 February 2010 09:11:40 Chrissy wrote:
> [ALL  ]    /media/Entwicklung/MiniFS/toolchain/targets/i686-unknown-linux-gnu
> /build/build-libc/elf/librtld.os: In function `print_statistics': 
> [ALL  ]    rtld.c:(.text+0x272): undefined reference to `__memcpy_chk'
> [ALL  ]    rtld.c:(.text+0x33b): undefined reference to `__memcpy_chk'
> [ALL  ]    rtld.c:(.text+0x588): undefined reference to `__memcpy_chk'
> [ALL  ]    /media/Entwicklung/MiniFS/toolchain/targets/i686-unknown-linux-gnu
> /build/build-libc/elf/librtld.os: In function `_dl_make_tlsdesc_dynamic': 
> [ALL  ]    (.text+0x148b6): undefined reference to `__memset_chk'
> [ALL  ]    collect2: ld returned 1 exit status
> I'm compiling on an Ubuntu 9.10 with gcc 4.4.1.
> I attached the first and the last part of build.log, I hope that helps.

You are using quite bleeding-edge versions of gcc. Those are known to be
particularly hard to build, especially in the case where the build machine
is of the same kind as the target (in your case x86).

As a first-timer, I would suggest that you start off with the existing
sample: i686-nptl-linux-gnu. You can recall the sample that way:

  ct-ng i686-nptl-linux-gnu    <- configure using values from the sample
  ct-ng show-config            <- prints current configuration

Once your sample built OK, you can _try_ to change one version _at_a_time_
with:

  ct-ng menuconfig
  ct-ng build

If you have more than one processor (or a multi-core processor), you can
instruct crosstool-NG to build in //:

  ct-ng build.4     (replace 4 with the actual number of processors)

Even on a single-core system, you may benefit a bit from running two jobs:

  ct-ng build.2

HTH.

Regards,
Yann E. MORIN.

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