Use libc_hidden_* for atoi (bug 15105).

Continuing the fixes for localplt test failures with -Os arising from
functions not being inlined in that case, this patch fixes such
failures for atoi by using libc_hidden_proto and libc_hidden_def.

Tested for x86_64 (both that it removes this particular localplt
failure for -Os, and that the testsuite continues to pass without
-Os).

	[BZ #15105]
	* stdlib/atoi.c (atoi): Use libc_hidden_def.
	* include/stdlib.h [!_ISOMAC] (atoi): Use libc_hidden_proto.

1 files changed, 6 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index db0b451..f7e7204 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2018-02-26  Joseph Myers  <joseph@codesourcery.com>
+
+	[BZ #15105]
+	* stdlib/atoi.c (atoi): Use libc_hidden_def.
+	* include/stdlib.h [!_ISOMAC] (atoi): Use libc_hidden_proto.
+
 2018-02-26  Dmitry V. Levin  <ldv@altlinux.org>
 
 	[BZ #22433]