From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <sourceware-bugzilla@sourceware.org>
Received: by sourceware.org (Postfix, from userid 48)
	id B5E8A3858401; Thu,  2 Feb 2023 03:43:29 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B5E8A3858401
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org;
	s=default; t=1675309409;
	bh=HZR26w04iSlh3GzDQK9gmjunqg6S/xLMQXRATluHQq0=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=ZmzrOxwJaoQbCmG+2wK/hHb5StcWCHiJCFBMO6eYzCcdvQ6RKSH9dt+6z1RAO5DHH
	 4q0zejMsyu3wvZTnOym+1alRaqgP9z0PCJnN4iZVM44a191LLqI5FfLI9eG8sLWYp2
	 /VDbvscN43EYUb8n0D9FkuuCXWMEv2GUJ9bAcQFc=
From: "brobecker at gnat dot com" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug tdep/29738] Arm M-profile dwarf2 unwinder performance suffers
 from exponential growth
Date: Thu, 02 Feb 2023 03:43:28 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gdb
X-Bugzilla-Component: tdep
X-Bugzilla-Version: HEAD
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: brobecker at gnat dot com
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: FIXED
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: unassigned at sourceware dot org
X-Bugzilla-Target-Milestone: 13.1
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: cc bug_status resolution
Message-ID: <bug-29738-4717-FO18d20Pa9@http.sourceware.org/bugzilla/>
In-Reply-To: <bug-29738-4717@http.sourceware.org/bugzilla/>
References: <bug-29738-4717@http.sourceware.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://sourceware.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gdb-prs.sourceware.org>

https://sourceware.org/bugzilla/show_bug.cgi?id=3D29738

Joel Brobecker <brobecker at gnat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |brobecker at gnat dot com
             Status|WAITING                     |RESOLVED
         Resolution|---                         |FIXED

--- Comment #7 from Joel Brobecker <brobecker at gnat dot com> ---
Just to clarify the impact of this issue (prior to fixing), Luis kindly
explained on gdb-patches:

> It affects 32-bit m-profile Arm targets that report the additional stack =
pointers.  This is either
> the org.gnu.gdb.arm.m-system feature or the org.gnu.gdb.arm.secext featur=
e.
>
> I'm fairly sure these features are only reported by emulators and bare-me=
tal targets.
>
> Now, a 64-bit gdb can debug 32-bit Arm as well, so you could have a 64-bi=
t gdb running into this too
> if the target is a 32-bit m-profile Arm. But the target is still 32-bit A=
rm.
>
> This doesn't affect AArch64 at all.

The patches have now been pushed to both master:

https://sourceware.org/git/gitweb.cgi?p=3Dbinutils-gdb.git;h=3Dd72ba177c85f=
2ad18d0dcabdd8844532c9acb819
https://sourceware.org/git/gitweb.cgi?p=3Dbinutils-gdb.git;h=3D2d36c9404e36=
0126551fef20f3f79f5a56f6ad8b

... and the gdb-13-branch:

https://sourceware.org/git/gitweb.cgi?p=3Dbinutils-gdb.git;h=3D2d36c9404e36=
0126551fef20f3f79f5a56f6ad8b
https://sourceware.org/git/gitweb.cgi?p=3Dbinutils-gdb.git;h=3D7944d457903a=
f4ba966df2a48aa6a2582b823b55

Closing.

--=20
You are receiving this mail because:
You are on the CC list for the bug.=