Re: CFT: snmalloc as libc malloc

On Sun, Feb 12, 2023 at 01:48:59PM -0800, Mark Millard wrote:
> On Feb 12, 2023, at 13:09, Shawn Webb <shawn.webb@hardenedbsd.org> wrote:
> 
> > . . .
> > That does not include the extra text that would be generated
> > by having added the -v requested to that shown command line.
> > That tet would likely have been before the text that you did
> > include.
> > 
> > Did you add the -v option? Was there extra text?
> 
> Good catch. I missed reading that. Here's the new output:
> http://ix.io/4nSy
> 
> Hmm. Scanning that list . . .
> 
> #include "..." search starts here:
> #include <...> search starts here:
> /data/src/hardenedbsd/lib/libc/include
> /data/src/hardenedbsd/include
> 
> The above likely includes a non-C++: stddef.h
> That likely overrides any: . . ./include/c++/v1/stddef.h
> that is required for things to work for the
> nullptr_t issue. (See prior E-mail from when
> I noticed that I'd missed the include/c++/v1/stddef.h
> involved.)
> 
> /data/src/hardenedbsd/lib/libc/amd64
> /data/src/hardenedbsd/contrib/gdtoa
> /data/src/hardenedbsd/contrib/libc-vis
> /usr/obj/data/src/hardenedbsd/amd64.amd64/lib/libc
> /data/src/hardenedbsd/lib/libc/resolv
> /data/src/hardenedbsd/lib/libmd
> /data/src/hardenedbsd/lib/libc/locale
> /data/src/hardenedbsd/lib/libc/rpc
> /data/src/hardenedbsd/lib/libutil
> /data/src/hardenedbsd/lib/msun/amd64
> /data/src/hardenedbsd/lib/msun/x86
> /data/src/hardenedbsd/contrib/snmalloc/src/snmalloc
> /usr/obj/data/src/hardenedbsd/amd64.amd64/tmp/usr/include/c++/v1
> 
> The above looks to be the first/only chance to pick
> up a C++ based file header (that may in turn look
> for a C based one as well).
> 
> /usr/lib/clang/15.0.7/include
> /usr/obj/data/src/hardenedbsd/amd64.amd64/tmp/usr/include
> /data/src/hardenedbsd/lib/msun/src
> End of search list.
> 
> The ordering does not look anything like correct
> to me relative to C++ headers, some of which in
> turn may include the C variants from the environment.
> 
> It is not so clear to me what the relationship is
> to the source_location file issue.

Also: find /data/src/hardenedbsd -iname '*source_location*'

^ that returns zero results. Are we ("we" being both FreeBSD and
HardenedBSD) completely missing a header file somewhere?

Thanks,

-- 
Shawn Webb
Cofounder / Security Engineer
HardenedBSD

https://git.hardenedbsd.org/hardenedbsd/pubkeys/-/raw/master/Shawn_Webb/03A4CBEBB82EA5A67D9F3853FF2E67A277F8E1FA.pub.asc