Add AT_RECURSIVE from Linux 5.2 to fcntl.h.

This patch adds the AT_RECURSIVE constant from Linux 5.2 to glibc's fcntl.h. (Existing practice in glibc is that the AT_* constants go directly in io/fcntl.h rather than somewhere OS-specific.) Tested for x86_64. * io/fcntl.h [__USE_GNU] (AT_RECURSIVE): New macro.
yamahata · Aug 6, 2019 · d8b9780 · d8b9780
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diff --git a/ChangeLog b/ChangeLog
@@ -1,3 +1,7 @@
+2019-08-06  Joseph Myers  <[email protected]>
+
+	* io/fcntl.h [__USE_GNU] (AT_RECURSIVE): New macro.
+
 2019-07-02  Stefan Liebler  <[email protected]>
 
 	* sysdeps/unix/sysv/linux/s390/init-first.c (VDSO_SETUP): New define.

diff --git a/io/fcntl.h b/io/fcntl.h
@@ -161,6 +161,7 @@ typedef __pid_t pid_t;
 #  define AT_STATX_SYNC_AS_STAT	0x0000
 #  define AT_STATX_FORCE_SYNC	0x2000
 #  define AT_STATX_DONT_SYNC	0x4000
+#  define AT_RECURSIVE		0x8000	/* Apply to the entire subtree.  */
 # endif
 # define AT_EACCESS		0x200	/* Test access permitted for
 					   effective IDs, not real IDs.  */