[task #5726] GCC built-in functions

[Thomas Schwinge]

URL:
  <http://savannah.gnu.org/task/?func=detailitem&item_id=5726>

                 Summary: GCC built-in functions
                 Project: The GNU Hurd
            Submitted by: tschwinge
            Submitted on: Monday 07/17/06 at 14:38
                Category: GNU Mach
         Should Start On: Monday 07/17/06 at 00:00
   Should be Finished on: Monday 07/17/06 at 00:00
                Priority: 1 - Later
                  Status: None
                 Privacy: Public
             Assigned to: None
        Percent Complete: 0%
             Open/Closed: Open
         Planned Release: GNU Mach 1.4
                  Effort: 0.00

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Details:

How to deal with GCC built-in functions?

22:52 <bddebian> We need prototypes for memcpy and memset in gnumach.  It
would alleviate alot of build warnings.
22:53 <antrik> in the linux drivers or in gnumach itself?
22:54 <bddebian> gnumach itself
22:54 <bddebian> I'm trying to find a "global" header file to stick them in
:-)
22:55 <bddebian>  port.h maybe
22:56 <antrik> do these functions exist anywhere in the source, or does it
rely on compiler builtins?...
22:56 <bddebian> They are implicetly defined in several programs
22:57 <bddebian> ipc_entry.c for example:
22:57 <bddebian>         if (!it_entries_reallocable(oits))
22:57 <bddebian>             (void) memcpy((void *) table, (const void *)
otable,
22:57 <bddebian>                   osize * sizeof(struct ipc_entry));
23:14 <bddebian> So, since all you guru's are here, what header file should I
put prototypes for memcpy and memset in? :-)
23:15 <marcus> oh you are writing an allocator? :)
23:15 <marcus> malloc.h
23:15 <marcus> oh
23:16 <neal> memcpy and memset are usually in string.h







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