The problems that I was having yesterday with bcopy and bzero were largely due
to my never having run 'make oldconfig' to import the uClibc settings that I
had previously been using (with a Snapgear 3.5 release). However, after
trying to properly configure my uClibc, really strange things start to happen.
At the beginning of the uClibc build, I get the following message:
<stdin>:1:24: error: asm/unistd.h: No such file or directory
<stdin>:1:24: error: asm/unistd.h: No such file or directory
I looked in the 2.6 kernel directory and discovered that there is was no link
from 'include/asm/'. I also discovered that there were only 3 'asm-*'
directories at all (asm-arm, asm-generic, and asm-nios2nommu). I chose to
make a link from 'asm' to 'asm-generic', because it was the only one that
seemed to make sense to me, but I have a little bit of an uncomfortable feeling
about having had to manually create the link, and also about the fact that
there are only 3 'asm-*' choices (whereas previous kernels would have a ton of
those directories for every architecture imaginable). Do these observations
indicate something unusual, or is this just something that has been cleaned up
in recent versions of the kernel?
After I manually added the 'asm' link, the uClibc build stopped reporting that
error, but still went on to report that all of the syscall symbols ("__NR_*")
were undeclared (even though they're clearly declared n the "unistd.h" file.
Is it possible that the fairly old uClibc in 20100315 just isn't compatible
with the extremely new 2.6.33 kernel for some architectures? Could this also
be due to the snapgear i386-linux cross-compiler that I'm using (it's the
latest one on the snapgear site, but it's a 3 or 4 year old 4.2.1 derived gcc)?
Is the 2009 release of uClinux known to be any better with that
cross-compiler. I'd kind of like to get the really new release working, but at
the end of the day, all I'm trying to get by upgrading is libxml and a >2.6.20
kernel, so I could use the release from last year.
Thanks
--Dave
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