svn commit: r190105 - head/sys/sparc64/sparc64

Marius Strobl marius at alchemy.franken.de
Fri Mar 20 07:00:19 PDT 2009


On Thu, Mar 19, 2009 at 05:06:52PM -0700, Marcel Moolenaar wrote:
> 
> On Mar 19, 2009, at 1:40 PM, Marius Strobl wrote:
> 
> >Author: marius
> >Date: Thu Mar 19 20:40:49 2009
> >New Revision: 190105
> >URL: http://svn.freebsd.org/changeset/base/190105
> >
> >Log:
> > There's no need to wrap kdb_enter() in #ifdef KDB as it's always  
> >available.
> 
> That's not quite how it works.
> 
> option KDB is used to build the kernel with debugging features
> that could impact performance, security and/or functionality.
> In this case it's not so much a matter of whether kdb_enter()
> is defined or not, but rather whether the kernel should respect
> -d.
> 

That's generally true but the places where I removed
#ifdef KDB don't have an impact on security, performance
doesn't matter and -d still does nothing if there's no
debugger available (which in turn would require options
KDB, at least according to documentation). I'm not sure
what your're actually trying to say; following your
logic strictly would mean that subr_kdb.c shouldn't be
standard but only compiled in when options KDB is
present.

Marius



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