e25fc8b511
* [libcpu/arm64] add C11 atomic ticket spinlock Replace the former implementation of flag-based spinlock which is unfair Besides, C11 atomic implementation is more readable (it's C anyway), and maintainable. Cause toolchain can use their builtin optimization and tune for different micro-architectures. For example armv8.5 introduces a better instruction. The compiler can help with that when it knows your target platform in support of it. Signed-off-by: Shell <smokewood@qq.com> * fixup: RT_CPUS_NR --------- Signed-off-by: Shell <smokewood@qq.com> |
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| link.lds.S | ||