From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by sourceware.org (Postfix) with ESMTPS id BC68C38708F2 for ; Fri, 1 May 2020 09:04:57 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org BC68C38708F2 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=tdevries@suse.de X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id A7BC5AC58 for ; Fri, 1 May 2020 09:04:56 +0000 (UTC) Date: Fri, 1 May 2020 11:04:55 +0200 From: Tom de Vries To: gdb-patches@sourceware.org Subject: [committed][gdb/testsuite] Fix Wunused-result warning in until-reverse.c Message-ID: <20200501090453.GA10391@delia> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) X-Spam-Status: No, score=-27.9 required=5.0 tests=BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, KAM_DMARC_STATUS, 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-patches@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 May 2020 09:05:04 -0000 Hi, When running test-case gdb.reverse/until-reverse.exp or gdb.reverse/until-precsave.exp with gcc-10, we run into a Wunused-result warning: ... gdb compile failed, gdb.reverse/until-reverse.c: In function 'main': gdb.reverse/until-reverse.c:40:14: warning: ignoring return value of \ 'malloc' declared with attribute 'warn_unused_result' [-Wunused-result] 40 | (void) malloc (1); | ^~~~~~~~~~ ... Fix this by using the result of malloc as argument to a free call. Tested on x86_64-linux. Committed to trunk. Thanks, - Tom [gdb/testsuite] Fix Wunused-result warning in until-reverse.c gdb/testsuite/ChangeLog: 2020-05-01 Tom de Vries * gdb.reverse/until-reverse.c (main): Fix Wunused-result warning. --- gdb/testsuite/gdb.reverse/until-reverse.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/gdb/testsuite/gdb.reverse/until-reverse.c b/gdb/testsuite/gdb.reverse/until-reverse.c index e523235f34c..a8d8aed9aac 100644 --- a/gdb/testsuite/gdb.reverse/until-reverse.c +++ b/gdb/testsuite/gdb.reverse/until-reverse.c @@ -37,7 +37,8 @@ main (int argc, char **argv, char **envp) { /* We're used by a test that requires malloc, so make sure it is in the executable. */ - (void) malloc (1); + void *p = malloc (1); + free (p); return 1; }