From owner-svn-src-all@freebsd.org Tue Aug 18 20:59:10 2020 Return-Path: Delivered-To: svn-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id DE1B13C7214; Tue, 18 Aug 2020 20:59:10 +0000 (UTC) (envelope-from cem@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4BWNZ65dzpz4dmK; Tue, 18 Aug 2020 20:59:10 +0000 (UTC) (envelope-from cem@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id A4F0B178D6; Tue, 18 Aug 2020 20:59:10 +0000 (UTC) (envelope-from cem@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 07IKxA80044434; Tue, 18 Aug 2020 20:59:10 GMT (envelope-from cem@FreeBSD.org) Received: (from cem@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 07IKxAej044433; Tue, 18 Aug 2020 20:59:10 GMT (envelope-from cem@FreeBSD.org) Message-Id: <202008182059.07IKxAej044433@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: cem set sender to cem@FreeBSD.org using -f From: Conrad Meyer Date: Tue, 18 Aug 2020 20:59:10 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r364358 - head/sys/gdb X-SVN-Group: head X-SVN-Commit-Author: cem X-SVN-Commit-Paths: head/sys/gdb X-SVN-Commit-Revision: 364358 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Aug 2020 20:59:10 -0000 Author: cem Date: Tue Aug 18 20:59:10 2020 New Revision: 364358 URL: https://svnweb.freebsd.org/changeset/base/364358 Log: gdb(4): Support empty qSupported queries Technically a client may send a qSupported query without specifying any client features. We should respond with our supported list in that case instead of bailing with error. Reported by: rlibby Reviewed by: emaste, rlibby, vangyzen Sponsored by: Isilon Differential Revision: https://reviews.freebsd.org/D26115 Modified: head/sys/gdb/gdb_main.c Modified: head/sys/gdb/gdb_main.c ============================================================================== --- head/sys/gdb/gdb_main.c Tue Aug 18 20:41:03 2020 (r364357) +++ head/sys/gdb/gdb_main.c Tue Aug 18 20:59:10 2020 (r364358) @@ -204,8 +204,14 @@ gdb_do_qsupported(uint32_t *feat) /* Parse supported host features */ *feat = 0; - if (gdb_rx_char() != ':') + switch (gdb_rx_char()) { + case ':': + break; + case EOF: + goto nofeatures; + default: goto error; + } while (gdb_rxsz > 0) { tok = gdb_rxp; @@ -250,6 +256,7 @@ gdb_do_qsupported(uint32_t *feat) *feat |= BIT(i); } +nofeatures: /* Send a supported feature list back */ gdb_tx_begin(0);