Compiling with -g slows down compilation and link, mainly because of
the extra debugging data that has to be copied around. -g
significantly increases disk usage.
>If that's true, then why dont we compile kernels with both -g and -O2
>always? Also does using -g AND -O2 cause some optimizations to be
With gcc, compiling with -g should have no effect on the kernel. One
of my occasional tests is to build vmlinux with and without -g, run
both through strip -g and compare the results. They should be
identical except for the build timestamp.
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