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unix: implement cpu_relax() for riscv64 (#5019)

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Signed-off-by: Han Gao <gaohan@iscas.ac.cn>
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Han Gao 2026-02-05 05:46:14 +08:00 committed by GitHub
parent 885613f1fe
commit e50d4e672e
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src/unix/async.c
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@ -414,5 +414,7 @@ static void uv__cpu_relax(void) {
__asm volatile ("" : : : "memory"); __asm volatile ("" : : : "memory");
#elif !defined(__APPLE__) && (defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__)) #elif !defined(__APPLE__) && (defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__))
__asm__ __volatile__ ("or 1,1,1; or 2,2,2" ::: "memory"); __asm__ __volatile__ ("or 1,1,1; or 2,2,2" ::: "memory");
#elif defined(__riscv) && __riscv_xlen == 64
__asm__ volatile(".insn 0x0100000f" ::: "memory"); /* FENCE */
#endif #endif
} }