[PATCH 00/11] Decouple global file object list from _GLOBAL_REENT

[Matthew Joyce <matthew.joyce@embedded-brains.de>]

From: Matt Joyce <matthew.joyce@embedded-brains.de>

The _GLOBAL_REENT structure maintains global information across threads,
including a global list of open file objects. This patch set aims to
decouple the global file object list from _GLOBAL_REENT, reducing dependency
on the structure.

This is accomplished by:

1) Simplifying stdio and __sglue initializations
2) Adding a dedicated stdio atexit handler
3) Adding a global __sglue object and removing __sglue from struct _reent for
   certain configurations

This effort will facilitate the future addition of a thread-local storage
configuration option as an alternative to using struct _reent.


Matt Joyce (9):
  Remove duplicate stdio initializations
  Remove duplicate sglue initializations
  Add two __sglue initialization macros
  Remove __sinit_locks / __sinit_recursive_mutex
  Move __sglue initializations to __sfp()
  Add CLEANUP_FILE define
  Add stdio atexit handler
  Add global __sglue object for all configurations
  Remove __sglue member for one configuration

Sebastian Huber (2):
  Declare global __sf[] only once
  stdio: Replace _fwalk_reent() with _fwalk_sglue()

 newlib/libc/include/sys/reent.h |  21 ++++--
 newlib/libc/reent/reent.c       |   6 +-
 newlib/libc/stdio/fcloseall.c   |   9 ++-
 newlib/libc/stdio/fflush.c      |   2 +-
 newlib/libc/stdio/findfp.c      | 112 +++++++++++++++++---------------
 newlib/libc/stdio/fwalk.c       |  15 +++--
 newlib/libc/stdio/local.h       |   6 +-
 newlib/libc/stdio/refill.c      |   4 +-
 newlib/libc/stdlib/exit.c       |   6 +-
 winsup/cygwin/signal.cc         |   5 +-
 winsup/cygwin/syscalls.cc       |   5 +-
 11 files changed, 110 insertions(+), 81 deletions(-)

-- 
2.31.1