Re: file names embedded in kernel image

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Dne 27.8.2015 v 11:44 Rasmus Villemoes napsal(a):
> Hi
> 
> I just noticed that when one build the kernel outside the source tree,
> all __FILE__ occurences get replaced with the absolute path (since
> that's what is given to gcc, and most -I paths are also absolute). This
> ends up wasting quite a lot of space in .rodata, and I suppose most
> distro supplied kernels have this issue. For example, my ubuntu kernel
> is full of strings like
> 
> /build/linux-hFNI9K/linux-3.13.0/arch/x86/platform/sfi/sfi.c
> /build/linux-hFNI9K/linux-3.13.0/kernel/fork.c

If you build in a subdirectory of the source tree, the filenames will
look like

../arch/x86/platform/sfi/sfi.c
../kernel/fork.c

Michal
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