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Re: [PATCH] x86: also discard .fini_array in linker script


  • To: Jan Beulich <jbeulich@xxxxxxxx>
  • From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
  • Date: Fri, 4 Mar 2022 09:57:38 +0100
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  • Cc: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, "Andrew Cooper" <andrew.cooper3@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>
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  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On Fri, Mar 04, 2022 at 08:49:39AM +0100, Jan Beulich wrote:
> This simply parallels .dtors. Both section types can reference
> .text.exit, which requires them to be discarded together with that one.
> Compilers, depending on their findings during the configure phase, may
> elect to use either model. While .{init,fini}_array look to be
> preferred, cross compilers apparently have this guessed, likely
> resulting in a fallback to .{c,d}tors. Hence we need to support both
> sets.

Do we also need to consider discarding .fini? Or that's guaranteed to
not be used by the compiler?

Thanks, Roger.



 


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