[Bug middle-end/78245] missing -Wformat-length on an overflow of a dynamically allocated buffer

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78245

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |diagnostic
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2016-11-07
           Assignee|unassigned at gcc dot gnu.org      |msebor at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
This is due to a limitation of the compute_builtin_object_size function in
tree-object-size.c.  The function only computes the sizes of dynamically
allocated objects that have been explicitly passed to the __builtin_object_size
intrinsic.

Let me look into removing the limitation and having the function handle
dynamically allocated objects even if they're not passed to the built-in.