From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from simark.ca by simark.ca with LMTP id pFv8M9hLR2pWSSMAWB0awg (envelope-from ) for ; Fri, 03 Jul 2026 01:42:48 -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=SL1Qszp6; dkim-atps=neutral Received: by simark.ca (Postfix, from userid 112) id C3FED1E070; Fri, 03 Jul 2026 01:42:48 -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 812411E070 for ; Fri, 03 Jul 2026 01:42:47 -0400 (EDT) Received: from vm01.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id A23BE4BA2E08 for ; Fri, 3 Jul 2026 05:42:46 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A23BE4BA2E08 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=SL1Qszp6 Received: from eggs.gnu.org (eggs.gnu.org [IPv6:2001:470:142:3::10]) by sourceware.org (Postfix) with ESMTPS id 2854E4BA23EA for ; Fri, 3 Jul 2026 05:42:24 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 2854E4BA23EA 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 2854E4BA23EA 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=1783057344; cv=none; b=JReeoKd4aBkM//6mP9xw2t1tvYDmYxKnVYw3MxJHcN+CYQQ7eRto0O150oug2DOCUgilF7Mh/Zv7e0/w0ZpWhkSvsUUs296PVS+tCHCWW4Qem1gjscl4kgdyInqiyziLrf4eRxVb+22qzZgOr1FGlo8lm7kQ9nuqnZ7qlNbYv2c= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1783057344; c=relaxed/simple; bh=mai+uvjES3jbQk9jnuk1/MKCjor7hBmhDkMV5iSI4H4=; h=DKIM-Signature:Date:Message-Id:From:To:Subject; b=wbJZFPJRy9lSHoFrPuqkxdHRRLcnmshU6tbIz5+V2sWyyIP87ONDQ02p9ODxo1ILwChR/5rTr9CNLaCWaM+N8y9zPiXATvFGNa7E9OswTv5jm1g7s+aWtbK5xq25ircU9YFYunHt/53V8VOgpGAMj3ac6Auk7yAFLCZjjz1Y9ts= 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=SL1Qszp6 DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 2854E4BA23EA 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 1wfWfP-0002Qn-Fw; Fri, 03 Jul 2026 01:42:23 -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=ulFRLLvxT8VdfTwIfhrCc9vRtYFUiNkH23fy/F0M0wk=; b=SL1Qszp6NLrU i076GxVld/VQbWkE6Y33k0El4xKWGEpVhveUIfVAe3SUxPT68yBbSWb00q8+Vq3Ee8abdkI6MreD6 FjbsMev6sKWoYrH33KIt94s8y4xObUmUW5LwOnB6TFERo0McexL21eXx5kMOoJ89XMN2qAiq0ZQrE oljnuumtVzrcuBXzTIFi7UmE4UEUhnPEgC31/xqCF4lbt5skLoFnFlI37VGHZGJQvPH5hvXCyQWNB vZ72jTAjkrgpS3j38ALHva3tMRvQ53quVHLkH8apK/Tdh5aYIbBicke2IILbOWbWINRRR7bNtlqDU jVBuJ2nRpfsEEA4eoAZD8A==; Date: Fri, 03 Jul 2026 08:42:19 +0300 Message-Id: <86fr20bpdw.fsf@gnu.org> From: Eli Zaretskii To: Tom Tromey Cc: gdb-patches@sourceware.org In-Reply-To: <20260702193556.2668618-1-tromey@adacore.com> (message from Tom Tromey on Thu, 2 Jul 2026 13:35:56 -0600) Subject: Re: [PATCH] Document remote protocol pid and thread id sizes References: <20260702193556.2668618-1-tromey@adacore.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: Tom Tromey > Cc: Tom Tromey > Date: Thu, 2 Jul 2026 13:35:56 -0600 > > The recent ptid work came from a bug where a problem was observed due > to sign extension. That bug also suggested documenting the guaranteed > range of thread- and process-ids in the remote protocol. > > This patch documents these as being 32-bit values at minimum. I also > added static asserts to ensure this is true -- note that although > 'int' may be 16 bit per the C standard, I doubt gdb would build on > such a host. > > I didn't specify a maximum because it is host-dependent. This is > perhaps something to change, and while I do have some work in this > area, it's quite invasive. Also, while widening the range here would > be good, it would also be incompatible in a sense, where a newer > protocol implementation may end up using values not supported by older > versions of gdb. Perhaps one idea would be to simply change these > both to int32_t and move on. > > Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=33979 > --- > gdb/doc/gdb.texinfo | 11 +++++++---- > gdbsupport/ptid.h | 4 ++++ > 2 files changed, 11 insertions(+), 4 deletions(-) Thanks, the documentation part is okay. Reviewed-By: Eli Zaretskii