[alsa-devel] [OT] visible symbols was Re: asihpi driver -> kernel

Eliot Blennerhassett linux at audioscience.com
Thu Dec 20 05:09:16 CET 2007

Takashi Iwai wrote:
> At Wed, 19 Dec 2007 11:13:25 +1300,
> Eliot Blennerhassett wrote:
>> BTW is there any way to not export functions/variables that are used
>> only inside the kernel module? (but used between object files that make
>> up the module so cannot be made static)
> Remember that a driver can be built in a kernel, not as a module.
>> I.e. if the module was compiled as one huge sourcefile, almost
>> everything could be static.
> You can do it in that way, of course :)

Hmmm.  Seems to be a general problem whether building a shared library,
or a kernel module.

I.e. as soon as I have more than one source file in my lib or module, I
suddenly have to make some functions not static, and they become visible

Is there no way to compile and link a.c and b.c so that only specific
entry points are visible before statically linking ab.o with the rest of
the kernel or making ab.o into a kernel module.


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