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 DBC7C3858C52; Mon, 10 Apr 2023 14:41:48 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org DBC7C3858C52
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org;
	s=default; t=1681137708;
	bh=FNR2jsvPT1RiBE7aom31Uc6sK666A9EIwSaGb8uREfQ=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=LGIUCKVibIfncBDiHSXRJ/DLQIggBByrpwTqHTZtNv/WHRYcxGIMXcstTpAMBxs12
	 zhGFguZO/TlL/qsYjAxmmNKfxgp9JK0MmQDvp4A6tA3D07Dvgu4ZXBpdk0H6eDrNgI
	 OW45K+mQIKg2Zcnp8w5jzd6k10UAsrwZ0KfXI5/Y=
From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug win32/30255] GDB on Windows cannot retrieve a stacktrace when a
 NULL function pointer is called
Date: Mon, 10 Apr 2023 14:41:47 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gdb
X-Bugzilla-Component: win32
X-Bugzilla-Version: 13.1
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: tromey at sourceware dot org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-30255-4717-Llp7WLzEDE@http.sourceware.org/bugzilla/>
In-Reply-To: <bug-30255-4717@http.sourceware.org/bugzilla/>
References: <bug-30255-4717@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=3D30255

--- Comment #7 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gn=
u.org> ---
The master branch has been updated by Tom Tromey <tromey@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=3Dbinutils-gdb.git;h=3Da0f6c61c9ab9=
98cd77b0899a4bdea9576d6d775f

commit a0f6c61c9ab998cd77b0899a4bdea9576d6d775f
Author: Tom Tromey <tromey@adacore.com>
Date:   Tue Mar 21 13:40:03 2023 -0600

    Handle unwinding from SEGV on Windows

    PR win32/30255 points out that a call to a NULL function pointer will
    leave gdb unable to "bt" on Windows.

    I tracked this down to the amd64 windows unwinder.  If we treat this
    scenario as if it were a leaf function, unwinding works fine.

    I'm not completely sure this patch is the best way.  I considered
    having it check for 'pc=3D=3D0' -- but then I figured this could affect
    any inaccessible PC, not just the special 0 value.

    No test case because I can't run dejagnu tests on Windows.  I tested
    this by hand using the test case in the bug.

    Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=3D30255

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