linux-kernel - Re: [PATCH v2 4/5] kernel hacking: new config DEBUG

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Message-ID: <20180502211956.6c9e8d7b@vmware.local.home>
Date:   Wed, 2 May 2018 21:19:56 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     changbin.du@...el.com, yamada.masahiro@...ionext.com,
        michal.lkml@...kovi.net, tglx@...utronix.de, mingo@...hat.com,
        rdunlap@...radead.org, x86@...nel.org, lgirdwood@...il.com,
        broonie@...nel.org, arnd@...db.de, linux-kbuild@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH v2 4/5] kernel hacking: new config DEBUG_EXPERIENCE to
 apply GCC -Og optimization

On Wed, 2 May 2018 13:45:58 -0700
Andrew Morton <akpm@...ux-foundation.org> wrote:

> On Wed, 2 May 2018 10:17:07 -0400 Steven Rostedt <rostedt@...dmis.org> wrote:
> 
> > > Comparison of vmlinux size: a bit smaller.
> > > 
> > >     w/o CONFIG_DEBUG_EXPERIENCE  
> > 
> > I hate the config name.
> > 
> > I probably can't come up with better ones but let's try:
> > 
> >  CONFIG_DEBUG_OPTIMIZE ?
> >  CONFIG_OPTIMIZE_DEBUG ?
> > 
> > But "EXPERIENCE" sounds like I'm on some DEBUG LSD.  
> 
> Metoo, but the gcc people decided on "-Og: Optimize debugging
> experience ..." and I think there are benefits if the kernel is to
> align the naming with that.

I still see that as "Optimize debugging" and "experience" is just the
platform of what was done.

With that gcc comment, I still think CONFIG_OPTIMIZE_DEBUG is more
inline with what it is and understandable than
CONFIG_DEBUG_EXPERIENCE. The "OPTIMIZE" is the key word there.

-- Steve