diff options
author | jb <jb@FreeBSD.org> | 1998-03-09 06:46:21 +0000 |
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committer | jb <jb@FreeBSD.org> | 1998-03-09 06:46:21 +0000 |
commit | 8571146da37d2646c1fb41e719ec30438e0f6f20 (patch) | |
tree | d093fb38d2e4ec3e9ae1c7be6fe6a2a3c18322ef /lib/libc/gen/_spinlock_stub.c | |
parent | a13044fdac87f77f2717546414bf10d1a0b17340 (diff) | |
download | FreeBSD-src-8571146da37d2646c1fb41e719ec30438e0f6f20.zip FreeBSD-src-8571146da37d2646c1fb41e719ec30438e0f6f20.tar.gz |
Stub functions for thread locking with weak symbols so that they are
only linked when not linking an application against libc_r or libpthread.
Diffstat (limited to 'lib/libc/gen/_spinlock_stub.c')
-rw-r--r-- | lib/libc/gen/_spinlock_stub.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/lib/libc/gen/_spinlock_stub.c b/lib/libc/gen/_spinlock_stub.c new file mode 100644 index 0000000..bea4d2b --- /dev/null +++ b/lib/libc/gen/_spinlock_stub.c @@ -0,0 +1,60 @@ +/* + * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by John Birrell. + * 4. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $Id$ + * + */ + +#include <stdio.h> +#include "spinlock.h" + +/* + * Declare weak references in case the application is not linked + * with libpthread. + */ +#pragma weak _spinlock=_spinlock_stub +#pragma weak _atomic_unlock=_atomic_unlock_stub + +/* + * This function is a stub for the spinlock function in libpthread. + */ +void +_spinlock_stub(long *lck) +{ +} + +/* + * This function is a stub for the _atomic_unlock function in libpthread. + */ +void +_atomic_unlock_stub(long *lck) +{ +} |