Hi,
>>"Luiz" == Luiz Otavio L Zorzella <[EMAIL PROTECTED]> writes:
Luiz> Forgive my dumbness... I've been thinking exactly what are the
Luiz> implications of what your're saying. Please correct me if I'm
Luiz> wrong:
Luiz> 1) sndshield, at *compilation time*, greps autoconf.h to guess
Luiz> which kernel version is being used. In my case, since it did not
Luiz> find any at /usr/src/linux/include, it found one at
Luiz> /usr/include, which was a symlink to 2.0.32 headers. This way it
Luiz> thought it was being compiled in a 2.0.32 system.
It depends on whatever is in the directory /usr/src/linux to
have any connection whatsover with the kernel one is compiling
for. The kernel itself make no such assumptions. I compile kernel in
/usr/local/src/kernel. No problems whatsover.
Luiz> 2) sndshield, at *run time*, does a "uname -a" (or something) to
Luiz> find which kernel version is being run. In my case it found
Luiz> 2.0.33, and threw a mismatch.
Probably (I have not looked at the source to see if this is
what they are doing)
Luiz> 3) Most important: are you saying that even compiled against
Luiz> 2.0.32 headers, since it was compiled under 2.0.33 it was
Luiz> supposed to run without any problem?
Who says it was compiled with 2.0.32 headers? From what I
remember, you compiled with cc -I/usr/src/kernel-source-2.0.33/include,
which means it was compiled with 2.0.33. The stupidityis that it knew
better than you. It knew that the kernel sources are always always in
/usr/src/linux.
The correct way to do this is to include linux/version.h and
compare stuff like LINUX_VERSION_CODE or UTS_RELEASE with whatever
unmae gives you. There are scores of example of how to do it right,
without depending on what one has in /usr/src/linux.
Luiz> Question "3" is crutial for what I'm gonna suggest to OSS
Luiz> people. Before you wrote me, I was thinking of suggesting them
Luiz> to "-I" /usr/src/kernel-headers-`uname -r` in a debian system...
Using grep in a case like this is evil. Ask them why they
can't follow what the rest of kernel module writers are doing,
namely, looking at uname(2), and comparing with LINUX_VERSION_CODE or
UTS_RELEASE.
manoj
--
"Life sucks, but death doesn't put out at all...." Thomas J. Kopp
Manoj Srivastava <[EMAIL PROTECTED]> <http://www.datasync.com/%7Esrivasta/>
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