newlib/winsup/cygwin/winbase.h

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/* winbase.h
Copyright 2001, 2002, 2003, 2004, 2005, 2008, 2009, 2012 Red Hat, Inc.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include_next "winbase.h"
#ifndef _WINBASE2_H
#define _WINBASE2_H
extern __inline__ LONG
ilockcmpexch (volatile LONG *t, LONG v, LONG c)
{
return
({
register LONG ret __asm ("%eax");
__asm __volatile ("lock cmpxchgl %2, %1"
: "=a" (ret), "=m" (*t)
: "r" (v), "m" (*t), "0" (c)
: "memory");
ret;
});
}
#undef InterlockedCompareExchange
#define InterlockedCompareExchange ilockcmpexch
#undef InterlockedCompareExchangePointer
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#ifdef __x86_64__
extern __inline__ LONGLONG
ilockcmpexch64 (volatile LONGLONG *t, LONGLONG v, LONGLONG c)
{
return
({
register LONGLONG ret __asm ("%rax");
__asm __volatile ("lock cmpxchgq %2, %1"
: "=a" (ret), "=m" (*t)
: "r" (v), "m" (*t), "0" (c)
: "memory");
ret;
});
}
#define InterlockedCompareExchange64 ilockcmpexch64
#define InterlockedCompareExchangePointer(d,e,c) \
(PVOID)InterlockedCompareExchange64((LONGLONG volatile *)(d),(LONGLONG)(e),(LONGLONG)(c))
#else
#define InterlockedCompareExchangePointer(d,e,c) \
(PVOID)InterlockedCompareExchange((LONG volatile *)(d),(LONG)(e),(LONG)(c))
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#endif /* !__x86_64 */
#endif /*_WINBASE2_H*/