From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-1.mimecast.com (us-smtp-1.mimecast.com [207.211.31.81]) by sourceware.org (Postfix) with ESMTP id D91FD386F465 for ; Mon, 22 Jun 2020 21:40:03 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org D91FD386F465 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-345-pGiCkBITNqS2r1xI_X8o1A-1; Mon, 22 Jun 2020 17:40:00 -0400 X-MC-Unique: pGiCkBITNqS2r1xI_X8o1A-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C697F8005AD; Mon, 22 Jun 2020 21:39:59 +0000 (UTC) Received: from host1.jankratochvil.net (ovpn-112-188.ams2.redhat.com [10.36.112.188]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 0970A4F6B3; Mon, 22 Jun 2020 21:39:58 +0000 (UTC) Date: Mon, 22 Jun 2020 23:39:56 +0200 From: Jan Kratochvil To: Ahmad Nouralizadeh Cc: gdb@sourceware.org Subject: Re: GDB Frame Unwinding for Pure Assembly Code Message-ID: <20200622213956.GA3486027@host1.jankratochvil.net> References: MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Spam-Status: No, score=-6.7 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gdb@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 22 Jun 2020 21:40:09 -0000 On Mon, 22 Jun 2020 23:29:01 +0200, Ahmad Nouralizadeh via Gdb wrote: > Perf copies stack contents during execution and uses > libunwind to unwind the backtraces in a post-process phase. perf can use also elfutils unwinder by a compile time option. IIRC someone was implementing non-DWARF unwinder for elfutils but not sure if it got upstreamed or not. You can try also the elfutils unwinder. as has .cfi_startproc to generate .eh_frame, doesn't nasm also have some such? Jan