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From: "fredrik.hederstierna@securitas-direct.com"
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Subject: [Bug gdb/28549] ARM/Cortex-M: improper stack unwinding when the
 target is in lockup state
Date: Mon, 13 Dec 2021 21:48:18 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28549

--- Comment #21 from Fredrik Hederstierna <fredrik.hederstierna@securitas-d=
irect.com> ---
Hi all,
would it be possible to handle Lockup inside function
  <arm_m_exception_cache (struct frame_info *this_frame)>

PSEUDO:

     if (pc =3D=3D 0xFFFFFFFE)  <<=3D=3D Lockup criterion checked in except=
ion cache
       {
          warning (_("no thread stack unwinding supported in Lockup."));

          /* Terminate any further stack unwinding by refer to self.  */
          cache->prev_sp =3D sp;
          return cache;
       }

--=20
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