[PATCH 49/58] Hide internal __nis_hash function [BZ #18822]

[H.J. Lu]

Hide internal __nis_hash function to allow direct access within libc.so
and libc.a without using GOT nor PLT.

	[BZ #18822]
	* nscd/nscd_helper.c (__nis_hash): New prototype.
---
 nscd/nscd_helper.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/nscd/nscd_helper.c b/nscd/nscd_helper.c
index a225623f92..56e6d1421f 100644
--- a/nscd/nscd_helper.c
+++ b/nscd/nscd_helper.c
@@ -443,6 +443,11 @@ __nscd_get_map_ref (request_type type, const char *name,
 #define MINIMUM_HASHENTRY_SIZE \
   (offsetof (struct hashentry, dellist) + sizeof (int32_t))
 
+/* __nis_hash is defined in nis_hash.c which is included both libnsl
+   and libc.  Since the one in libnsl is exported and the one in libc
+   is hidden, __nis_hash is marked as hidden where it is referenced,
+   not where it is defined.  */
+extern __typeof (__nis_hash) __nis_hash attribute_hidden;
 
 /* Don't return const struct datahead *, as eventhough the record
    is normally constant, it can change arbitrarily during nscd
-- 
2.13.5