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[Feature] Why not use compiler builtins atomic #9848

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oolongoo opened this issue Dec 31, 2024 · 2 comments

oolongoo commented Dec 31, 2024

Describe problem solved by the proposed feature

gcc和llvm都提供了builtin的atomic方法，为什么还需要自己实现一套 rt_hw_atomic_xxx ?

Describe your preferred solution

直接使用编译器的builtin atomic
https://llvm.org/docs/Atomics.html
https://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html

Describe possible alternatives

No response

Member

aozima commented Dec 31, 2024

有的时候直接用 RT_USING_STDC_ATOMIC，没有的时候用自己实现的。

Contributor

kaidegit commented Dec 31, 2024

只能说并不是所有时候都能用到支持内置原子的编译器的，再说了不是给了个选项用内置的嘛

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