[newlib-cygwin] Add _REENT_CLEANUP(ptr)

[Sebastian Huber <sh@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=f89ce35d83c705cfb9ae0564d1999f39c4e8fa83

commit f89ce35d83c705cfb9ae0564d1999f39c4e8fa83
Author: Matt Joyce <matthew.joyce@embedded-brains.de>
Date:   Thu Feb 3 10:18:53 2022 +0100

    Add _REENT_CLEANUP(ptr)
    
    Add a _REENT_CLEANUP() macro to encapsulate access to the
    __cleanup member of struct reent. This will help to replace the
    struct member with a thread-local storage object in a follow up
    patch.

Diff:
---
 newlib/libc/include/sys/reent.h  | 1 +
 newlib/libc/machine/spu/c99ppe.h | 2 +-
 newlib/libc/machine/spu/stdio.c  | 2 +-
 newlib/libc/reent/reent.c        | 4 ++--
 newlib/libc/stdio/findfp.c       | 4 ++--
 newlib/libc/stdio/local.h        | 2 +-
 newlib/libc/stdio/setvbuf.c      | 2 +-
 newlib/libc/sys/arm/syscalls.c   | 2 +-
 winsup/cygwin/cygtls.cc          | 2 +-
 winsup/cygwin/dcrt0.cc           | 2 +-
 10 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/newlib/libc/include/sys/reent.h b/newlib/libc/include/sys/reent.h
index 4296188f5..3d277638f 100644
--- a/newlib/libc/include/sys/reent.h
+++ b/newlib/libc/include/sys/reent.h
@@ -718,6 +718,7 @@ struct _reent
 
 #endif /* !_REENT_SMALL */
 
+#define _REENT_CLEANUP(_ptr)	((_ptr)->__cleanup)
 #define _REENT_EMERGENCY(_ptr)	((_ptr)->_emergency)
 #define _REENT_ERRNO(_ptr)	((_ptr)->_errno)
 #define _REENT_INC(_ptr)	((_ptr)->_inc)
diff --git a/newlib/libc/machine/spu/c99ppe.h b/newlib/libc/machine/spu/c99ppe.h
index 263cf7fe0..7b3fcb6b7 100644
--- a/newlib/libc/machine/spu/c99ppe.h
+++ b/newlib/libc/machine/spu/c99ppe.h
@@ -104,6 +104,6 @@ FILE  *__sfp (struct _reent *);
 #define __sfp_free(fp) ( (fp)->_fp = 0 )
 
 #define CHECK_INIT(ptr) \
-  do { if ((ptr) && !(ptr)->__cleanup) __sinit (ptr); } while (0)
+  do { if ((ptr) && !_REENT_CLEANUP(ptr)) __sinit (ptr); } while (0)
 #define CHECK_STR_INIT(ptr) /* currently, do nothing */
 #endif /* __ASSEMBLER__ */
diff --git a/newlib/libc/machine/spu/stdio.c b/newlib/libc/machine/spu/stdio.c
index 83a60c06b..fd45b0014 100644
--- a/newlib/libc/machine/spu/stdio.c
+++ b/newlib/libc/machine/spu/stdio.c
@@ -65,7 +65,7 @@ __cleanup (struct _reent *s)
 void
 __sinit (struct _reent *s)
 {
-  s->__cleanup = __cleanup;
+  _REENT_CLEANUP(s) = __cleanup;
 
   _REENT_STDIN(s) = &s->__sf[0];
   _REENT_STDIN(s)->_fp = SPE_STDIN;
diff --git a/newlib/libc/reent/reent.c b/newlib/libc/reent/reent.c
index a9d44b455..16ac04e22 100644
--- a/newlib/libc/reent/reent.c
+++ b/newlib/libc/reent/reent.c
@@ -86,11 +86,11 @@ _reclaim_reent (struct _reent *ptr)
 	  if (ptr->_sig_func)
 	_free_r (ptr, ptr->_sig_func);*/
 
-      if (ptr->__cleanup)
+      if (_REENT_CLEANUP(ptr))
 	{
 	  /* cleanup won't reclaim memory 'coz usually it's run
 	     before the program exits, and who wants to wait for that? */
-	  ptr->__cleanup (ptr);
+	  _REENT_CLEANUP(ptr) (ptr);
 	}
 
       /* Malloc memory not reclaimed; no good way to return memory anyway. */
diff --git a/newlib/libc/stdio/findfp.c b/newlib/libc/stdio/findfp.c
index 3c888d03c..fbdb7f2f2 100644
--- a/newlib/libc/stdio/findfp.c
+++ b/newlib/libc/stdio/findfp.c
@@ -235,14 +235,14 @@ __sinit (struct _reent *s)
 {
   __sfp_lock_acquire ();
 
-  if (s->__cleanup)
+  if (_REENT_CLEANUP(s))
     {
       __sfp_lock_release ();
       return;
     }
 
   /* make sure we clean up on exit */
-  s->__cleanup = cleanup_stdio;	/* conservative */
+  _REENT_CLEANUP(s) = cleanup_stdio;	/* conservative */
 
   global_stdio_init ();
   __sfp_lock_release ();
diff --git a/newlib/libc/stdio/local.h b/newlib/libc/stdio/local.h
index 9b355e3ac..24eaff351 100644
--- a/newlib/libc/stdio/local.h
+++ b/newlib/libc/stdio/local.h
@@ -197,7 +197,7 @@ extern _READ_WRITE_RETURN_TYPE __swrite64 (struct _reent *, void *,
   do								\
     {								\
       struct _reent *_check_init_ptr = (ptr);			\
-      if ((_check_init_ptr) && !(_check_init_ptr)->__cleanup)	\
+      if ((_check_init_ptr) && !_REENT_CLEANUP(_check_init_ptr))\
 	__sinit (_check_init_ptr);				\
     }								\
   while (0)
diff --git a/newlib/libc/stdio/setvbuf.c b/newlib/libc/stdio/setvbuf.c
index 46c58a7b8..e27ea086c 100644
--- a/newlib/libc/stdio/setvbuf.c
+++ b/newlib/libc/stdio/setvbuf.c
@@ -174,7 +174,7 @@ nbf:
    * We're committed to buffering from here, so make sure we've
    * registered to flush buffers on exit.
    */
-  if (!reent->__cleanup)
+  if (!_REENT_CLEANUP(reent))
     __sinit(reent);
 
 #ifdef _FSEEK_OPTIMIZATION
diff --git a/newlib/libc/sys/arm/syscalls.c b/newlib/libc/sys/arm/syscalls.c
index 4b9be701a..325c0117f 100644
--- a/newlib/libc/sys/arm/syscalls.c
+++ b/newlib/libc/sys/arm/syscalls.c
@@ -60,7 +60,7 @@ extern void   __sinit (struct _reent *);
 #define CHECK_INIT(ptr) \
   do						\
     {						\
-      if ((ptr) && !(ptr)->__cleanup)		\
+      if ((ptr) && !_REENT_CLEANUP(ptr))	\
 	__sinit (ptr);				\
     }						\
   while (0)
diff --git a/winsup/cygwin/cygtls.cc b/winsup/cygwin/cygtls.cc
index 866342613..d0f4426c8 100644
--- a/winsup/cygwin/cygtls.cc
+++ b/winsup/cygwin/cygtls.cc
@@ -55,7 +55,7 @@ _cygtls::init_thread (void *x, DWORD (*func) (void *, void *))
       _REENT_INIT_PTR (&local_clib);
       stackptr = stack;
       altstack.ss_flags = SS_DISABLE;
-      if (_GLOBAL_REENT->__cleanup)
+      if (_REENT_CLEANUP(_GLOBAL_REENT))
 	local_clib.__cleanup = _cygtls::cleanup_early;
     }
 
diff --git a/winsup/cygwin/dcrt0.cc b/winsup/cygwin/dcrt0.cc
index 9cbb8908f..897a2fba3 100644
--- a/winsup/cygwin/dcrt0.cc
+++ b/winsup/cygwin/dcrt0.cc
@@ -800,7 +800,7 @@ main_thread_sinit ()
      read or written in the first stdio function call in the main thread.
 
      To fix this issue we set __cleanup to _cygtls::cleanup_early here. */
-  _REENT->__cleanup = _cygtls::cleanup_early;
+  _REENT_CLEANUP(_REENT) = _cygtls::cleanup_early;
 }
 
 /* Take over from libc's crt0.o and start the application. Note the