From: Rich Felker <dalias@aerifal.cx>
Date: Tue, 11 Sep 2018 18:56:09 +0000 (-0400)
Subject: hide __pthread_once_full symbol
X-Git-Tag: v1.1.21~112
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=a60d579f5edf3d2e6cc8b5e5f33cbf34bd8914c9;p=oweals%2Fmusl.git

hide __pthread_once_full symbol

this is a special case that does not need a declaration, because it's
not even a libc-internal interface between translation units. instead
it's a poor hack around compilers' inability to shrink-wrap critical
code paths. after vis.h was disabled, it became more of a
pessimization on many archs due to the extra layer of machinery to
support a call through the PLT, but now it should be efficient again.
---

diff --git a/src/thread/pthread_once.c b/src/thread/pthread_once.c
index a8f8aeb1..8e8d40ae 100644
--- a/src/thread/pthread_once.c
+++ b/src/thread/pthread_once.c
@@ -8,7 +8,7 @@ static void undo(void *control)
 		__wake(control, -1, 1);
 }
 
-int __pthread_once_full(pthread_once_t *control, void (*init)(void))
+hidden int __pthread_once_full(pthread_once_t *control, void (*init)(void))
 {
 	/* Try to enter initializing state. Four possibilities:
 	 *  0 - we're the first or the other cancelled; run init