* here? (The answer wasn't obvious to me when merging the
* architecture-abstracting patches for CSR's SPARC port. -- WHN 2002-02-15) */
-#include "interr.h"
+#define COMPILER_BARRIER \
+ do { __asm__ __volatile__ ( "" : : : "memory"); } while (0)
static inline void
-get_spinlock(volatile lispobj *word,long value)
+get_spinlock(volatile lispobj *word, unsigned long value)
{
#ifdef LISP_FEATURE_SB_THREAD
u32 eax=0;
lose("recursive get_spinlock: 0x%x,%ld\n",word,value);
do {
#if defined(LISP_FEATURE_DARWIN)
- asm ("xor %0,%0;\n\
+ asm volatile ("xor %0,%0;\n\
lock/cmpxchg %1,%2"
: "=a" (eax)
: "r" (value), "m" (*word)
: "memory", "cc");
#else
- asm ("xor %0,%0\n\
+ asm volatile ("xor %0,%0\n\
lock cmpxchg %1,%2"
: "=a" (eax)
: "r" (value), "m" (*word)
static inline void
release_spinlock(volatile lispobj *word)
{
+ /* See comment in RELEASE-SPINLOCK in target-thread.lisp. */
+ COMPILER_BARRIER;
*word=0;
+ COMPILER_BARRIER;
}
-#include <stdio.h>
-
static inline lispobj
swap_lispobjs(volatile lispobj *dest, lispobj value)
{
lispobj old_value;
#if defined(LISP_FEATURE_DARWIN)
- asm ("lock/xchg %0,(%1)"
+ asm volatile ("lock/xchg %0,(%1)"
: "=r" (old_value)
: "r" (dest), "0" (value)
: "memory");
#else
- asm ("lock xchg %0,(%1)"
+ asm volatile ("lock xchg %0,(%1)"
: "=r" (old_value)
: "r" (dest), "0" (value)
: "memory");