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From: "tromey at sourceware dot org" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug gdb/28224] Use-after-free when calling a GNU ifunc
Date: Sun, 06 Mar 2022 17:18:25 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28224

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tromey at sourceware dot o=
rg

--- Comment #1 from Tom Tromey <tromey at sourceware dot org> ---
+  frame =3D get_current_frame ();

Jan pointed out ages ago that the gdb design where a frame can
be silently invalidated by some calls -- and so the caller has
to store a frame-id and "reinflate" the frame -- is fragile.

One idea we've discussed is to use C++ objects for these things,
so that when a frame is invalidated, it will reinflate all on its
own, on reference.  Then the callers don't need to be handled
specially.

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