#ifndef _X86_64_ARCH_H
#define _X86_64_ARCH_H
+#ifndef SBCL_GENESIS_CONFIG
+#error genesis/config.h (or sbcl.h) must be included before this file
+#endif
+
+#include "interr.h" /* for declaration of lose() */
+
#define ARCH_HAS_STACK_POINTER
/* FIXME: Do we also want
* here? (The answer wasn't obvious to me when merging the
* architecture-abstracting patches for CSR's SPARC port. -- WHN 2002-02-15) */
-static inline void
-get_spinlock(lispobj *word,long value)
+#include "interr.h"
+
+static inline void
+get_spinlock(volatile lispobj *word,long value)
{
#ifdef LISP_FEATURE_SB_THREAD
u64 rax=0;
+ if(*word==value)
+ lose("recursive get_spinlock: 0x%x,%ld\n",word,value);
do {
- asm ("xor %0,%0\n\
- lock cmpxchg %1,%2"
- : "=a" (rax)
- : "r" (value), "m" (*word)
- : "memory", "cc");
+#if defined(LISP_FEATURE_DARWIN)
+ asm ("xor %0,%0\n\
+ lock/cmpxchg %1,%2"
+ : "=a" (rax)
+ : "r" (value), "m" (*word)
+ : "memory", "cc");
+#else
+ asm ("xor %0,%0\n\
+ lock cmpxchg %1,%2"
+ : "=a" (rax)
+ : "r" (value), "m" (*word)
+ : "memory", "cc");
+#endif
} while(rax!=0);
#else
*word=value;
}
static inline void
-release_spinlock(lispobj *word)
+release_spinlock(volatile lispobj *word)
{
*word=0;
}
+static inline lispobj
+swap_lispobjs(volatile lispobj *dest, lispobj value)
+{
+ lispobj old_value;
+ asm ("lock xchg %0,(%1)"
+ : "=r" (old_value)
+ : "r" (dest), "0" (value)
+ : "memory");
+ return old_value;
+}
+
#endif /* _X86_64_ARCH_H */