Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [PATCH 2/3] reliable stack trace support (x86-64) | Date | Tue, 16 May 2006 17:13:39 +0200 |
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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.
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