Mark internal netlink functions with attribute_hidden [BZ #18822]

Mark internal netlink functions with attribute_hidden to allow direct
access within libc.so and libc.a without using GOT nor PLT.

	[BZ #18822]
	* sysdeps/unix/sysv/linux/netlinkaccess.h (__netlink_open): Add
	attribute_hidden.
	(__netlink_close): Likewise.
	(__netlink_free_handle): Likewise.
	(__netlink_request): Likewise.

diff --git a/ChangeLog b/ChangeLog
index 9ede6b7..8117cc1 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,15 @@
 2017-10-01  H.J. Lu  <hongjiu.lu@intel.com>
 
        [BZ #18822]
+       * sysdeps/unix/sysv/linux/netlinkaccess.h (__netlink_open): Add
+       attribute_hidden.
+       (__netlink_close): Likewise.
+       (__netlink_free_handle): Likewise.
+       (__netlink_request): Likewise.
+
+2017-10-01  H.J. Lu  <hongjiu.lu@intel.com>
+
+       [BZ #18822]
        * include/rpc/rpc.h (__rpc_thread_variables): Add
        attribute_hidden.
        (__rpc_thread_svc_cleanup): Likewise.

diff --git a/sysdeps/unix/sysv/linux/netlinkaccess.h b/sysdeps/unix/sysv/linux/netlinkaccess.h
index 66bbbe6..f4973e2 100644 (file)
--- a/sysdeps/unix/sysv/linux/netlinkaccess.h
+++ b/sysdeps/unix/sysv/linux/netlinkaccess.h
@@ -44,10 +44,12 @@ struct netlink_handle
 };
 
 
-extern int __netlink_open (struct netlink_handle *h);
-extern void __netlink_close (struct netlink_handle *h);
-extern void __netlink_free_handle (struct netlink_handle *h);
-extern int __netlink_request (struct netlink_handle *h, int type);
+extern int __netlink_open (struct netlink_handle *h) attribute_hidden;
+extern void __netlink_close (struct netlink_handle *h) attribute_hidden;
+extern void __netlink_free_handle (struct netlink_handle *h)
+     attribute_hidden;
+extern int __netlink_request (struct netlink_handle *h, int type)
+     attribute_hidden;
 
 /* Terminate the process if RESULT is an invalid recvmsg result for
    the netlink socket FD.  */