From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11903 invoked by alias); 20 Nov 2017 08:11:42 -0000 Mailing-List: contact elfutils-devel-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Post: List-Help: List-Subscribe: Sender: elfutils-devel-owner@sourceware.org Received: (qmail 11775 invoked by uid 48); 20 Nov 2017 08:11:24 -0000 From: "krebbel at linux dot vnet.ibm.com" To: elfutils-devel@sourceware.org Subject: [Bug libdw/22452] Failed to obtain CFI data for a OP_call_frame_CFA when looking for func entrypoc in an s390 kernel module Date: Mon, 20 Nov 2017 08:11:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: elfutils X-Bugzilla-Component: libdw X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: krebbel at linux dot vnet.ibm.com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at sourceware dot 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://sourceware.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2017-q4/txt/msg00061.txt.bz2 https://sourceware.org/bugzilla/show_bug.cgi?id=3D22452 --- Comment #11 from Andreas Krebbel --- x86 enables generation of .debug_frame by using: KBUILD_CFLAGS +=3D -fno-asynchronous-unwind-tables in the kernel Makefile. This makes GCC to add ".cfi_sections .debug_frame"= to the assembler output which in turn triggers gas to generate the section. I don't see a reason why we couldn't do the same for s390. The .eh_frame section aren't used in the kernel. --=20 You are receiving this mail because: You are on the CC list for the bug.