Break __scandir_cancel_handler out into its own file.

ChangeLog

@@ -1,5 +1,13 @@
 2015-05-13  Roland McGrath  <roland@hack.frob.com>
 
+	* dirent/scandirat.c (__scandir_cancel_handler): Function moved ...
+	* dirent/scandir-cancel.c: ... to this new file.
+	* dirent/Makefile (routines): Add it.
+	* dirent/scandirat64.c (SKIP_SCANDIR_CANCEL): Macro removed.
+	* sysdeps/unix/sysv/linux/i386/scandir64.c
+	(SKIP_SCANDIR_CANCEL): Macro removed.
+	* include/dirent.h (__scandir_cancel_handler): Add attribute_hidden.
+
 	* dirent/tst-scandir.c: New file.
 	* dirent/tst-scandir64.c: New file.
 	* dirent/Makefile (tests): Add them.

dirent/Makefile

@@ -27,7 +27,7 @@ routines	:= opendir closedir readdir readdir_r rewinddir \
 		   seekdir telldir scandir alphasort versionsort \
 		   getdents getdents64 dirfd readdir64 readdir64_r scandir64 \
 		   alphasort64 versionsort64 fdopendir \
-		   scandirat scandirat64
+		   scandirat scandirat64 scandir-cancel
 
 tests	   := list tst-seekdir opendir-tst1 bug-readdir1 tst-fdopendir \
 	      tst-fdopendir2 tst-scandir tst-scandir64

dirent/scandir-cancel.c

@@ -0,0 +1,31 @@
+/* Cancellation handler used in scandir* implementations.
+   Copyright (C) 1992-2015 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <dirent.h>
+
+void
+__scandir_cancel_handler (void *arg)
+{
+  struct scandir_cancel_struct *cp = arg;
+  void **v = cp->v;
+
+  for (size_t i = 0; i < cp->cnt; ++i)
+    free (v[i]);
+  free (v);
+  (void) __closedir (cp->dp);
+}

dirent/scandirat.c

@@ -36,21 +36,6 @@
 # define SCANDIRAT_WEAK_ALIAS
 #endif
 
-#ifndef SKIP_SCANDIR_CANCEL
-void
-__scandir_cancel_handler (void *arg)
-{
-  struct scandir_cancel_struct *cp = arg;
-  size_t i;
-  void **v = cp->v;
-
-  for (i = 0; i < cp->cnt; ++i)
-    free (v[i]);
-  free (v);
-  (void) __closedir (cp->dp);
-}
-#endif
-
 
 int
 SCANDIRAT (dfd, dir, namelist, select, cmp)

dirent/scandirat64.c

@@ -23,7 +23,6 @@
 #define SCANDIRAT scandirat64
 #define READDIR __readdir64
 #define DIRENT_TYPE struct dirent64
-#define SKIP_SCANDIR_CANCEL 1
 
 #include "scandirat.c"
 

include/dirent.h

@@ -46,9 +46,10 @@ extern int __versionsort64 (const struct dirent64 **a,
 extern DIR *__alloc_dir (int fd, bool close_fd, int flags,
 			 const struct stat64 *statp)
      internal_function;
-extern void __scandir_cancel_handler (void *arg);
 extern __typeof (rewinddir) __rewinddir;
 
+extern void __scandir_cancel_handler (void *arg) attribute_hidden;
+
 libc_hidden_proto (__rewinddir)
 extern __typeof (scandirat) __scandirat;
 libc_hidden_proto (__scandirat)

sysdeps/unix/sysv/linux/i386/scandir64.c

@@ -21,7 +21,6 @@
 #define SCANDIRAT scandirat64
 #define READDIR __readdir64
 #define DIRENT_TYPE struct dirent64
-#define SKIP_SCANDIR_CANCEL 1
 
 #include <dirent/scandir.c>