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[Frama-c-discuss] [value analysis] calls the system library function abort or exit will result in NON TERMINATING FUNCTION. Why?

  • Subject: [Frama-c-discuss] [value analysis] calls the system library function abort or exit will result in NON TERMINATING FUNCTION. Why?
  • From: boris at yakobowski.org (Boris Yakobowski)
  • Date: Mon, 21 Oct 2013 20:43:50 +0200
Hi,

NON TERMINATING FUNCTION means that the final statement of the
function is either unreachable, or results in an error ; this also
implies that the control does not return to the caller. This is indeed
the case for functions that call exit (), and is automatically handled
by the various plugins derived from Value. To determine if a function
returns, Frama-C/Cil either read GCC's
__attribute__ ((noreturn)) (that is present in system headers), or
uses 'ensures \false' clauses, as suggested by David.

On Fri, Oct 18, 2013 at 1:29 PM, David Yang <abiao.yang at gmail.com> wrote:
> I thought NON TERMINATING FUNCTION has no corresponding Pdg. But indeed, the
> pdg was also constructed. so that would not be a problem now.



-- 
Boris