我希望有人能够解释一下在气球来源中使用的“用户宏观”的细微差别。
首先,宏观:
# define __user __attribute__((noderef, address_space(1)))
现在,经过一些大论之后,我读到,这一大论允许人们指定一个点子属于用户地址空间,不应加以参照。
我可能缺乏一些明显的事实,但有人可以解释这种宏观影响? 例如,这一宏观用途的范例是什么? 同样,如果我失踪的话,我原谅我。
为了在某种情况下做到这一点,我是在审查某些《联合国统一准则》时跨过宏观的。 我只想全面了解这些宏观方法(或像其他方法一样)在摇篮中使用的情况。
亲爱!
它允许以下工具:sparse,告诉油轮开发商,他们可能不适当地使用一个没有信任的点子(或目前虚拟地址测绘中可能无效的点子)。
我认为__用户是用户空间点,告诉开发商/系统不要信任。 如果用户给你的“无效”点人,那么ker子就试图提及它(指出ker子可以指任何地方),而且它会破坏自己的空间。
例如,在“阅读”中(在你看来,我们会为你提供一种(......用户)缓冲,以撰写结果。 因此,你们必须用复印件——给用户,而不是复印件、纸浆或类似东西。
注:这并不是正式的定义/描述,而是了解的第一部分。
www.un.org/Depts/DGACM/index_french.htm 宏观定义与其他一些宏观,如<代码>-force/_kernel/>>/_force/code>等宏观事项时。 等等,它对于分离具有特别的意义。 在Linus Torvalds的Lino kernel邮递名单上,Landus Torvalds解释了使用这种邮电的情况:
这一点必须记住:对于热情来说,说明毫无意义。 它们仍然有用,只能告诉 programr,“你要说的只是一个正常的点”,但归根结底,除非你使用稀释,否则他们实际上不会do。
HOWEVER。 当你
do使用 par时,这完全是另一个问题。 对于“零”来说,“......iomem”具有许多意义: # define __iomem __attribute__((noderef, address_space(2)))所谓“iomem”是指两个不同的东西:这意味着 s应当提出申诉。
如果指点人(无主人)直接被忽略,则与正常地址空间(0)相比,在“地址2”中。
现在,这意味着,如果该点人已经变成需要固定点人的职能,那么sparse<>em>就会提出申诉(因为该点是
而不是 正常点人,而且你显然应该像“strcmp(......)”等做的事情),那么如果你试图将其投到另一个地址,那么这种点人也会抱怨。
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