On Tuesday 16 May 2006 16:21, Jan Beulich wrote:
> These are the x86_64-specific pieces to enable reliable stack traces. The
> only restriction with this is that it currently cannot unwind across the
> interrupt->normal stack boundary, as that transition is lacking proper
> annotation.
It would be nice if you could submit a patch to fix that.
>
> +#ifdef CONFIG_STACK_UNWIND
> + . = ALIGN(8);
> + .eh_frame : AT(ADDR(.eh_frame) - LOAD_OFFSET) {
> + __start_unwind = .;
> + *(.eh_frame)
> + __end_unwind = .;
> + }
> +#endif
Ah ok - it's there. Ignore my earlier question then.
> +#define UNW_PC(frame) (frame)->regs.rip
> +#define UNW_SP(frame) (frame)->regs.rsp
I think we alreay have instruction_pointer(). Better add a stack_pointer()
in ptrace.h too.
-Andi
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