Add a _REENT_ERRNO() macro to encapsulate the access to the
_errno member of struct reent. This will help to replace the
structure member with a thread-local storage object in a follow
up patch.
Replace uses of __errno_r() with _REENT_ERRNO(). Keep __errno_r() macro for
potential users outside of Newlib.
* libc/reent/timer.c: Removed (split into two new files).
* libc/reent/timesr.c: New file for _times_r.
* libc/reent/gettimeofdayr.c: New file out _gettimeofday_r.
* reent/Makefile.in: Remove timer.c, add timesr.c and
gettimeofdayr.c.
* libc/reent/Makefile.am: Regenerate.
Matt Joyce
Yaakov Selkowitz
Jeff Johnston