From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id BE7EC3857829; Wed, 25 Aug 2021 15:40:31 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org BE7EC3857829 From: "matt at godbolt dot org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/102067] SEGFAULT in varpool_node::get_constructor during lto1 when optimising or not using debug symbols Date: Wed, 25 Aug 2021 15:40:31 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Version: 9.3.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: matt at godbolt dot org X-Bugzilla-Status: WAITING X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 25 Aug 2021 15:40:31 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102067 --- Comment #4 from Matt Godbolt --- Interestingly, if we extract (with nm x) the files in the library, and glob them in instead of naming the library file, everything works. We're having difficulty constructing a reduced case, as we need a whole binary (including all the libraries we use), else the link step fails with missing symbols be= fore it gets to the crash.=