Re: [PATCH] Use %ebp rather than %ebx for thread_info pointer

From: Linus Torvalds (torvalds@transmeta.com)
Date: Thu Jan 09 2003 - 15:20:11 EST


On Thu, 9 Jan 2003, Richard B. Johnson wrote:
>
> If you use EBP as an index register, i.e., "movl (%ebp), %eax", it
> will be relative to the SS, not ES or DS. Is this what you want?

That's fine, both SS and DS are 32-bit flat segments everywhere in the
kernel (they have different descriptors - __KERNEL_DS vs __USER_DS, but
they do the same thing)

                Linus

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