On Sat, 19 Nov 2016 18:19:37 -0800
Mark Millard <mar...@dsl-only.net> wrote:

> > Author: jhibbits
> > Date: Fri Nov 18 22:59:33 2016
> > New Revision: 308817
> > URL: https://svnweb.freebsd.org/changeset/base/308817
> > 
> > Log:
> >   Fix buildworld
> >   
> >   Change the pv_tracked flag to an int, just in case userspace
> > decides to include this file and defines BOOKE.
> >   
> >   Guard this block from unintentional inclusion with ifdef BOOKE.
> >   
> >   Reported by:      emaste  
> . . .
> 
> (Later quotes are not from the list or from E-mail but from files.)
> 
> I'm not targeting BOOKE but GENERIC64 (via include, with AIM but not
> ps3). I'm at head -r308860 yet for TARGET_ARCH=powerpc64 I get the
> following that did not happen with my older -r308247 builds:
> 
> > --- kinfo_getallproc.o ---  
> . . .
> > In file included from /usr/src/sys/sys/user.h:53:0,
> >                  from q:34:
> > /usr/src/sys/vm/vm_map.h:190:2: error: unknown type name 'pmap_t'
> >   pmap_t pmap;   /* (c) Physical map */
> >   ^
> > /usr/src/sys/vm/vm_map.h:250:14: error: field 'vm_pmap' has
> > incomplete type struct pmap vm_pmap; /* private physical map */
> >               ^
> > --- kinfo_getfile.o ---
> > In file included from /usr/src/sys/sys/user.h:53:0,
> >                  from /usr/src/lib/libutil/kinfo_getfile.c:5:
> > /usr/src/sys/vm/vm_map.h:190:2: error: unknown type name 'pmap_t'
> >   pmap_t pmap;   /* (c) Physical map */
> >   ^
> > /usr/src/sys/vm/vm_map.h:250:14: error: field 'vm_pmap' has
> > incomplete type struct pmap vm_pmap; /* private physical map */  
> 
> 
> It is almost like a machine/pmap.h include is missing now so that the
> types are not defined. But I've not yet found where the relevant
> difference(s) are from -r308247.
> 
> Showing a compile command (with -v) with its failure. . .
> 

The change is the "#elif defined(BOOKE)".  Since userspace doesn't
define either AIM nor BOOKE, struct pmap no longer exists.

Alan, do you know if vmspace *needs* struct pmap to exist when read
from userspace (in libprocstat and libkvm, from what I grepped)?  If
not, I can add a simple '#else struct pmap {};' to quiet the build.

- Justin
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