From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id D06583858C42; Mon, 15 Jan 2024 17:11:50 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D06583858C42 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1705338710; bh=Z5nfY17RFDjvBGQBZX72BZl4Fii3SLpthhSfCy4zFOQ=; h=From:To:Subject:Date:In-Reply-To:References:From; b=XMS6hC1Hev1rBbm6ob7lh/M9bEUMwEqUZHIsOPAeSv5EuUTQI4B6+qbqDDSpETycH uJSVg7imMDXCDuMs5x7WfyvBUOhMvuHbfse1tYP/HZp2aXJ+9BT9MWVSu6Pfjt4qJS /EkJxtLgu136VSg7llXJz+vnZBMyIOFKQUOhbGhA= From: "fw at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug libgcc/113403] __builtin_nested_func_ptr_created, __builtin_nested_func_ptr should be dynamically linked by default Date: Mon, 15 Jan 2024 17:11:50 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: libgcc X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: fw at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113403 --- Comment #2 from Florian Weimer --- Weak symbols have no meaning for ELF DSOs, so this wouldn't work for libgcc= _s on ELF targets. Instead we automatically link against dynamic libgcc_s if certain symbols not in libgcc.a are referenced. Sources built with -ftrampoline-impl=3Dheap -fexceptions can already trigger such a dependency= for _Unwind_Resume because it's used in the cleanup handler, for example.=