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3.8 getg实现的一个疑惑 #536
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TLS属于线程局部空间,对于不同的线程是不同的。有些CPU禁止直接读取TLS的内容到寄存器, 简单来说
具体的细节在这里有说明: |
另外,如果省略 |
感谢柴大解惑
是否可以理解为 (TLS*1) 之于 golang asm 相当于 NaN之于浮点数?
即在处理这一块的时候会先判断是否是特殊用例 例如寄存器名称为TLS时进行特殊处理,否则才按照默认规则处理? 另外似乎即使省略了 |
这个在不同平台翻译出来的结果不一样,其实理解成一一个特殊的宏就行了 |
似乎在这里找到了答案 |
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提示:哪一章节的问题,建议如何修改
有点不太能理解
0(CX)(TLS*1)
是如何与(TLS)
等价的不知能否解答一下疑惑, 谢谢
按照我个人的理解
CX被赋值TLS
0(CX)(TLS*1)
是否应该被解释为(TLS*1 + TLS +0)
即(TLS*2)
?为什么会等价于
(TLS)
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