[patch] Fix uninitialized Dwarf_Frame->regs

Roland McGrath roland at hack.frob.com
Mon Oct 8 21:04:25 UTC 2012

> Do you mean plain assert?  I would find this case more appropriate for static
> assertion, in GDB it is:

I did, but only because I didn't think we had a handy macro for static assert.

> In elfutils is already BUILD_BUG_ON_ZERO but only in "libebl/libeblP.h".

Move it into lib/system.h.  For this kind of use, we should have one that
is warning-free when used as a statement, so add another macro if needed to
achieve that.  That's better than a hack like:

> +	      bigger += BUILD_BUG_ON_ZERO (reg_unspecified);


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