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Re: [RFC 1/3, debug] Add fdebug-nops
On Jul 24, 2018, Tom de Vries <tdevries@suse.de> wrote:
> There's a design principle in GCC that code generation and debug generation
> are independent. This guarantees that if you're encountering a problem in an
> application without debug info, you can recompile it with -g and be certain
> that you can reproduce the same problem, and use the debug info to debug the
> problem. This invariant is enforced by bootstrap-debug. The fdebug-nops
> breaks this invariant
I thought of a way to not break it: enable the debug info generation
machinery, including VTA and SFN, but discard those only at the very end
if -g is not enabled. The downside is that it would likely slow -Og
down significantly, but who uses it without -g anyway?
--
Alexandre Oliva, freedom fighter https://FSFLA.org/blogs/lxo
Be the change, be Free! FSF Latin America board member
GNU Toolchain Engineer Free Software Evangelist