From 0cb0cb1b24a8ada17d71f3f1cad36e89d0c0ccfc Mon Sep 17 00:00:00 2001
From: kib <kib@FreeBSD.org>
Date: Tue, 17 Feb 2015 01:03:06 +0000
Subject: MFC r278751: Properly interpose libc spinlocks, was missed in
 r276630.

---
 lib/libc/gen/_spinlock_stub.c | 41 +++++++++++++++++++----------------------
 1 file changed, 19 insertions(+), 22 deletions(-)

(limited to 'lib/libc/gen')

diff --git a/lib/libc/gen/_spinlock_stub.c b/lib/libc/gen/_spinlock_stub.c
index 47bbfeb..fddfc1b 100644
--- a/lib/libc/gen/_spinlock_stub.c
+++ b/lib/libc/gen/_spinlock_stub.c
@@ -33,51 +33,48 @@ __FBSDID("$FreeBSD$");
 #include <stdio.h>
 
 #include "spinlock.h"
+#include "libc_private.h"
 
 long _atomic_lock_stub(volatile long *);
 void _spinlock_stub(spinlock_t *);
 void _spinunlock_stub(spinlock_t *);
 void _spinlock_debug_stub(spinlock_t *, char *, int);
 
-/*
- * Declare weak definitions in case the application is not linked
- * with libpthread.
- */
 __weak_reference(_atomic_lock_stub, _atomic_lock);
-__weak_reference(_spinlock_stub, _spinlock);
-__weak_reference(_spinunlock_stub, _spinunlock);
-__weak_reference(_spinlock_debug_stub, _spinlock_debug);
 
-/*
- * This function is a stub for the _atomic_lock function in libpthread.
- */
 long
 _atomic_lock_stub(volatile long *lck __unused)
 {
 	return (0L);
 }
 
+__weak_reference(_spinlock, _spinlock_debug);
+#pragma weak _spinlock
+void
+_spinlock(spinlock_t *lck)
+{
 
-/*
- * This function is a stub for the spinlock function in libpthread.
- */
+	((void (*)(spinlock_t *lck))__libc_interposing[INTERPOS_spinlock])
+	    (lck);
+
+}
+
+#pragma weak _spinlock
 void
-_spinlock_stub(spinlock_t *lck __unused)
+_spinunlock(spinlock_t *lck)
 {
+
+	((void (*)(spinlock_t *lck))__libc_interposing[INTERPOS_spinunlock])
+	    (lck);
+
 }
 
-/*
- * This function is a stub for the spinunlock function in libpthread.
- */
 void
-_spinunlock_stub(spinlock_t *lck __unused)
+__libc_spinlock_stub(spinlock_t *lck __unused)
 {
 }
 
-/*
- * This function is a stub for the debug spinlock function in libpthread.
- */
 void
-_spinlock_debug_stub(spinlock_t *lck __unused, char *fname __unused, int lineno __unused)
+__libc_spinunlock_stub(spinlock_t *lck __unused)
 {
 }
-- 
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