From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from simark.ca by simark.ca with LMTP id cVlfGKHttGrFCzwAWB0awg (envelope-from ) for ; Thu, 24 Sep 2026 05:30:09 -0400 Authentication-Results: simark.ca; dkim=pass (2048-bit key; unprotected) header.d=gnu.org header.i=@gnu.org header.a=rsa-sha256 header.s=fencepost-gnu-org header.b=LPa+rwjn; dkim-atps=neutral Received: by simark.ca (Postfix, from userid 112) id 600051E033; Thu, 24 Sep 2026 05:30:09 -0400 (EDT) X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-25) on simark.ca X-Spam-Level: X-Spam-Status: No, score=-6.4 required=5.0 tests=ARC_SIGNED,ARC_VALID,BAYES_00, DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham autolearn_force=no version=4.0.1 Received: from vm01.sourceware.org (vm01.sourceware.org [IPv6:2620:52:6:3111::32]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by simark.ca (Postfix) with ESMTPS id 9B77E1E033 for ; Thu, 24 Sep 2026 05:30:08 -0400 (EDT) Received: from vm01.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 16E5F4BB24F9 for ; Thu, 24 Sep 2026 09:30:07 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 16E5F4BB24F9 Authentication-Results: sourceware.org; dkim=pass (2048-bit key, unprotected) header.d=gnu.org header.i=@gnu.org header.a=rsa-sha256 header.s=fencepost-gnu-org header.b=LPa+rwjn Received: from eggs.gnu.org (eggs.gnu.org [IPv6:2001:470:142:3::10]) by sourceware.org (Postfix) with ESMTPS id 96A934BB24DC for ; Thu, 24 Sep 2026 09:29:43 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 96A934BB24DC Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gnu.org Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gnu.org ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 96A934BB24DC Authentication-Results: sourceware.org; arc=none smtp.remote-ip=2001:470:142:3::10 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1790242183; cv=none; b=dLVXBkg0wG3WfNV0v1gE07KiBg+JnkQdE7Uu0zZExPBCBg/k4U2TQQ4p9FAyy0v2QCh91sgAjzHAahJrptoVoVqpCO54Fw5ia83jUlsRdKGSxjcnX/rUCVeVG7WL4B9Q8nAxrCKE/DQwt7/6+9N68TKcEexYI5mienwzZuPfBpc= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1790242183; c=relaxed/simple; bh=Rls45NN42SJOczKLVx8wriZeDnYuaiqdbpcJUq/lmkc=; h=DKIM-Signature:Date:Message-Id:From:To:Subject; b=S6OSiHj3I8oHb+WiWmnFFvNzkk7YaavTkCGWRN0j63ff6EIWr0joZiYhV8+D8qdG6vkNpWvc97o7f+HzE6nY7UvASq8qdIgDiBUsRK9AVmUvTF5J9y0IaLMsEUyarcVa2jkZ9uPzZYtYNwHaSC7hjp1bRh06Sn0kkPhi2il2d0c= ARC-Authentication-Results: i=1; sourceware.org; dkim=pass (2048-bit key, unprotected) header.d=gnu.org header.i=@gnu.org header.a=rsa-sha256 header.s=fencepost-gnu-org header.b=LPa+rwjn DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 96A934BB24DC Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1x9flu-0002mS-9g; Thu, 24 Sep 2026 05:29:42 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=emCg6Xw5uHV/L3Lm8JfYvNNlW7lW/0t9p6oXMm438PY=; b=LPa+rwjnBCAx tei9pZMN44q4EEHC8ipdqY7VOIvcmMxZG6ym2VWbiAkaMcJPirOF2re2wWHOgtPsvJQhdlbE3RrfG lBgnyzMvF6gA74FWOFtiqWtd2V0kveOI7kOpq78mU6B7nH7wIGcW7pU+w6kYH/Xtooob6b1yPfILW Of1t2q4HUTT352gBVp1DGMUEKzkSVlcnGBBtjtu1wTuYEDjVRz+lWY1zaUl3SQ+r8kVgnxQLslAkt FdbycEkTZy1aYS8rI3uNvcTH734Us0YJ450nht46nd+TW9yuq3wrdViNmAW4NCAdPgU/TLAVwJDoJ jcKFyAoSiSrFMipYsW7RfQ==; Date: Thu, 24 Sep 2026 12:29:39 +0300 Message-Id: <86ik3v9ev0.fsf@gnu.org> From: Eli Zaretskii To: Christina Joos Cc: gdb-patches@sourceware.org, thiago.bauermann@linaro.org, tom@tromey.com, luis.machado.foss@gmail.com In-Reply-To: <20260924083311.1961530-10-christina.joos@intel.com> (message from Christina Joos on Thu, 24 Sep 2026 10:33:06 +0200) Subject: Re: [PATCH v5 09/13] gdb: Provide gdbarch hook to distinguish shadow stack backtrace elements. References: <20260924083311.1961530-1-christina.joos@intel.com> <20260924083311.1961530-10-christina.joos@intel.com> X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces~public-inbox=simark.ca@sourceware.org > From: Christina Joos > Cc: thiago.bauermann@linaro.org, tom@tromey.com, luis.machado.foss@gmail.com > Date: Thu, 24 Sep 2026 10:33:06 +0200 > > On x86 with CET or on ARM with GCS, there can be elements on the shadow > stack which are not return addresses. In this case, we don't want to print > the shadow stack element, but a string instead which describes the frame > similar to the normal backtrace command for dummy frames or signals. > > Provide a gdbarch hook to distinguish between return and non-return > addresses and to configure a string which is printed instead of the > shadow stack element. > > Reviewed-by: Thiago Jung Bauermann > --- > gdb/doc/gdb.texinfo | 19 +++++++++++++++++++ > gdb/gdbarch-gen.c | 32 ++++++++++++++++++++++++++++++++ > gdb/gdbarch-gen.h | 19 +++++++++++++++++++ > gdb/gdbarch_components.py | 25 +++++++++++++++++++++++++ > gdb/shadow-stack.c | 36 +++++++++++++++++++++++++++++++++++- > gdb/shadow-stack.h | 26 ++++++++++++++++++++++++++ > 6 files changed, 156 insertions(+), 1 deletion(-) AFAIR, I've approved the gdb.texinfo part in v2, right? And there are no changes in that part since then, right?