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From: "ahajkova at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug tdep/29423] [gdb, tdep/aarch64] FAIL:
 gdb.base/watchpoint-unaligned.exp: continue (timeout)
Date: Wed, 12 Apr 2023 20:59:10 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D29423

--- Comment #22 from Alexandra H=C3=A1jkov=C3=A1 <ahajkova at redhat dot co=
m> ---
(In reply to Luis Machado from comment #18)
> Thanks!
>=20
> That gives me a good indication of what's going wrong.
>=20
> Looks like these blocks in
> gdb/nat/aarch64-linux-hw-point.c:aarch64_linux_get_debug_reg_capacity are
> failing:
>=20
>   if (ptrace (PTRACE_GETREGSET, tid, NT_ARM_HW_WATCH, &iov) =3D=3D 0
>       && compatible_debug_arch (AARCH64_DEBUG_ARCH (dreg_state.dbg_info)))
>=20
> and
>=20
>   if (ptrace (PTRACE_GETREGSET, tid, NT_ARM_HW_BREAK, &iov) =3D=3D 0
>       && compatible_debug_arch (AARCH64_DEBUG_ARCH (dreg_state.dbg_info)))
>=20
> I suppose ptrace wouldn't fail, so I'm guessing compatible_debug_arch mig=
ht
> be the culprit, since it checks a hardcoded number of variations of
> AARCH64_DEBUG_ARCH_V8*, and we may be returning false if the
> AARCH64_DEBUG_ARCH is outside of the expected range.
>=20
> We might need a new bug for this.

I've field a bug report and included the fix for the TCL error:
https://sourceware.org/bugzilla/show_bug.cgi?id=3D30340

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