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19 lines
289 B
C
19 lines
289 B
C
#ifndef __NR_restart_syscall
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#include <syscall.h>
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#endif
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#include <stdlib.h>
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#define a_barrier() syscall(__NR_membarrier)
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#define a_cas a_cas
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static inline int a_cas(volatile int *p, int t, int s)
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{
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int old = *p;
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if (old == t)
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*p = s;
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return old;
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}
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#define a_crash() abort()
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