61d0b5a4b2
This makes them a bit more like the kernel headers, so we can include more real kernel headers in our tests. In addition this means that we don't break tools/virtio with the next patch. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
14 lines
361 B
C
14 lines
361 B
C
#if defined(__i386__) || defined(__x86_64__)
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#define barrier() asm volatile("" ::: "memory")
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#define mb() __sync_synchronize()
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#define smp_mb() mb()
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# define smp_rmb() barrier()
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# define smp_wmb() barrier()
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/* Weak barriers should be used. If not - it's a bug */
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# define rmb() abort()
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# define wmb() abort()
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#else
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#error Please fill in barrier macros
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#endif
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