[Bug fortran/53456] Add time support for VxWorks

["jb at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53456

Janne Blomqvist <jb at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
                URL|                            |http://gcc.gnu.org/ml/gcc-p
                   |                            |atches/2012-05/msg01563.htm
                   |                            |l
   Last reconfirmed|                            |2012-05-23
     Ever Confirmed|0                           |1

--- Comment #5 from Janne Blomqvist <jb at gcc dot gnu.org> 2012-05-23 14:50:44 UTC ---
(In reply to comment #4)
> VxWorks does not provide the process time in most versions and for most cases. 
> In fact, many VxWorks applications are not processes in the traditional sense
> but instead tasks/threads spawned by the kernel in kernel space.
> 
> If returning an error is the preferred behavior for gf_cputime, then the code
> as is should work.

Yes, I do think it's better to return some kind of error rather than trying to
fake a value.

>  But it doesn't seem optimal (IMHO) to only have second
> resolution for gf_gettime.

Yes, fair enough. The patch I posted at

http://gcc.gnu.org/ml/gcc-patches/2012-05/msg01563.html

should fix this.

> Also, I started working on this before realizing that the reason it failed to
> compile initially was mis-configuration.  It should compile as-is, just not
> work as well as (I believe) it could.

I see, thanks for the clarification. Attention to detail is appreciated, as I
don't have access to a vxworks system to test on myself.