Re: [PATCH 00/23] tracehook

From: Andi Kleen
Date: Fri Jul 18 2008 - 07:24:44 EST


David Miller <davem@xxxxxxxxxxxxx> writes:
>
> The other arch's with compat support will have this same exact issue.

On x86-64 the sign extension is in C code, so it would be somewhat more
complicated to do a generic table or converter.

I think the tracer will always need to know if it's tracing 32bit
or 64bit though, because the interfaces are not always 100% compatible.
e.g. I suspect any serious one will need to look at memory
arguments for some cases and those generally differ.

-Andi
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