Libc-763.11.tar.gz

[apple/libc.git] / i386 / sys / atomic.c

diff --git a/i386/sys/atomic.c b/i386/sys/atomic.c
new file mode 100644 (file)
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+++ b/i386/sys/atomic.c
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+/*
+ * Copyright (c) 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#include <machine/cpu_capabilities.h>
+#include <platfunc.h>
+
+#define        RESOLVER_UP_MP(symbol)  \
+       PLATFUNC_DESCRIPTOR(symbol, up, kUP, 0); \
+       PLATFUNC_DESCRIPTOR(symbol, mp, 0, kUP); \
+       static const platfunc_descriptor* symbol ## _platfunc_descriptors[] = { \
+               PLATFUNC_DESCRIPTOR_REFERENCE(symbol, mp), \
+               PLATFUNC_DESCRIPTOR_REFERENCE(symbol, up), \
+               0 \
+       }; \
+       void* symbol ## _chooser() __asm__("_" #symbol); \
+       void* symbol ## _chooser() { \
+               __asm__(".symbol_resolver _" #symbol); \
+               return find_platform_function((const platfunc_descriptor**) symbol ## _platfunc_descriptors); \
+       }
+
+RESOLVER_UP_MP(OSAtomicAnd32)
+RESOLVER_UP_MP(OSAtomicAnd32Barrier)
+RESOLVER_UP_MP(OSAtomicOr32)
+RESOLVER_UP_MP(OSAtomicOr32Barrier)
+RESOLVER_UP_MP(OSAtomicXor32)
+RESOLVER_UP_MP(OSAtomicXor32Barrier)
+RESOLVER_UP_MP(OSAtomicAnd32Orig)
+RESOLVER_UP_MP(OSAtomicAnd32OrigBarrier)
+RESOLVER_UP_MP(OSAtomicOr32Orig)
+RESOLVER_UP_MP(OSAtomicOr32OrigBarrier)
+RESOLVER_UP_MP(OSAtomicXor32Orig)
+RESOLVER_UP_MP(OSAtomicXor32OrigBarrier)
+RESOLVER_UP_MP(OSAtomicCompareAndSwapPtr)
+RESOLVER_UP_MP(OSAtomicCompareAndSwapPtrBarrier)
+RESOLVER_UP_MP(OSAtomicCompareAndSwapInt)
+RESOLVER_UP_MP(OSAtomicCompareAndSwapIntBarrier)
+RESOLVER_UP_MP(OSAtomicCompareAndSwapLong)
+RESOLVER_UP_MP(OSAtomicCompareAndSwapLongBarrier)
+RESOLVER_UP_MP(OSAtomicCompareAndSwap32)
+RESOLVER_UP_MP(OSAtomicCompareAndSwap32Barrier)
+RESOLVER_UP_MP(OSAtomicCompareAndSwap64)
+RESOLVER_UP_MP(OSAtomicCompareAndSwap64Barrier)
+RESOLVER_UP_MP(OSAtomicAdd32)
+RESOLVER_UP_MP(OSAtomicAdd32Barrier)
+RESOLVER_UP_MP(OSAtomicAdd64)
+RESOLVER_UP_MP(OSAtomicAdd64Barrier)
+RESOLVER_UP_MP(OSAtomicTestAndSet)
+RESOLVER_UP_MP(OSAtomicTestAndSetBarrier)
+RESOLVER_UP_MP(OSAtomicTestAndClear)
+RESOLVER_UP_MP(OSAtomicTestAndClearBarrier)
+RESOLVER_UP_MP(OSAtomicEnqueue)
+RESOLVER_UP_MP(OSAtomicDequeue)
+
+PLATFUNC_DESCRIPTOR_PROTOTYPE(OSMemoryBarrier, all)
+PLATFUNC_DESCRIPTOR_PROTOTYPE(OSMemoryBarrier, sse2)
+
+static const platfunc_descriptor *OSMemoryBarrier_platfunc_descriptors[] = {
+       PLATFUNC_DESCRIPTOR_REFERENCE(OSMemoryBarrier, sse2),
+       PLATFUNC_DESCRIPTOR_REFERENCE(OSMemoryBarrier, all),
+       0
+};
+
+void *OSMemoryBarrier_chooser() __asm__("_OSMemoryBarrier");
+void *OSMemoryBarrier_chooser() {
+       __asm__(".symbol_resolver _OSMemoryBarrier");
+       return find_platform_function((const platfunc_descriptor **) OSMemoryBarrier_platfunc_descriptors);
+}