Re: [discuss] booting a kernel compiled with -mregparm=0

[Tigran Aivazian]

Hi Andi,

On Mon, 17 Jan 2005, Andi Kleen wrote:
> The ABI supported way is to read the DWARF2 unwind tables. For that
> you would a dwarf2 reader.  gdb does that in user space, and libgcc2
> also does it for exception unwinding. IA64 has an in kernel dwarf2
> reader library (and ia64 kdb uses it), although it would probably need
> some work to make it work on x86-64.
>
> So far nobody wanted it enough to do the porting work though.

Thank you for the pointer. I will look at it and see if I can try to port 
it to x86_64, since that is the standard and official way. I admit that I 
didn't realize that the "magic stuff" which gdb does is in fact a dwarf2 
implementation (and this is what's missing in kdb on x86_64).

Kind regards
Tigran
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