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authorRoland McGrath <roland@hack.frob.com>2014-06-25 10:04:14 -0700
committerRoland McGrath <roland@hack.frob.com>2014-06-25 10:04:14 -0700
commit74836003ed4f2613f5c47a654bdd38a366076c15 (patch)
treefc50e17ba0787b3a59baf4a81cd75bb26351ba4b /sysdeps/sparc/sparc32/pthread_spin_trylock.S
parent06d50baa341a6bc603d4228128aff92483b98708 (diff)
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SPARC: Consolidate unnecessary nptl/ subdirectories.
Diffstat (limited to 'sysdeps/sparc/sparc32/pthread_spin_trylock.S')
-rw-r--r--sysdeps/sparc/sparc32/pthread_spin_trylock.S29
1 files changed, 29 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc32/pthread_spin_trylock.S b/sysdeps/sparc/sparc32/pthread_spin_trylock.S
new file mode 100644
index 0000000000..68215ab2c9
--- /dev/null
+++ b/sysdeps/sparc/sparc32/pthread_spin_trylock.S
@@ -0,0 +1,29 @@
+/* Copyright (C) 2012-2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+#include <pthread-errnos.h>
+
+	.text
+ENTRY(pthread_spin_trylock)
+	ldstub		[%o0], %o0
+	cmp		%o0, 0
+	bne,a		1f
+	 mov		EBUSY, %o0
+1:	retl
+	 nop
+END(pthread_spin_trylock)