From patchwork Wed Feb 15 22:54:43 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sergio Durigan Junior X-Patchwork-Id: 19268 Received: (qmail 102918 invoked by alias); 15 Feb 2017 22:54:55 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Delivered-To: mailing list gdb-patches@sourceware.org Received: (qmail 102909 invoked by uid 89); 15 Feb 2017 22:54:55 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.0 required=5.0 tests=BAYES_20, RP_MATCHES_RCVD, SPF_HELO_PASS autolearn=ham version=3.3.2 spammy=gdb_start, gdb_exit, 0287, Hx-languages-length:3910 X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Wed, 15 Feb 2017 22:54:44 +0000 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E57264D689; Wed, 15 Feb 2017 22:54:44 +0000 (UTC) Received: from localhost (unused-10-15-17-193.yyz.redhat.com [10.15.17.193]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id v1FMsi3w009621 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 15 Feb 2017 17:54:44 -0500 From: Sergio Durigan Junior To: Pedro Alves Cc: GDB Patches , Doug Evans Subject: Re: [PATCH] PR gdb/21164: maint print {symbols, msymbols, psymbols} without args crash References: <20170215201548.29225-1-sergiodj@redhat.com> X-URL: http://blog.sergiodj.net Date: Wed, 15 Feb 2017 17:54:43 -0500 In-Reply-To: (Pedro Alves's message of "Wed, 15 Feb 2017 22:12:28 +0000") Message-ID: <87o9y3njyk.fsf@redhat.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) MIME-Version: 1.0 X-IsSubscribed: yes On Wednesday, February 15 2017, Pedro Alves wrote: > On 02/15/2017 08:15 PM, Sergio Durigan Junior wrote: > >> This patch fixes that. OK to apply? > > Can you add some tests for this, please? How about this? Thanks diff --git a/gdb/psymtab.c b/gdb/psymtab.c index 1fad8a0..6e42bc5 100644 --- a/gdb/psymtab.c +++ b/gdb/psymtab.c @@ -1926,7 +1926,7 @@ maintenance_print_psymbols (char *args, int from_tty) argv = gdb_buildargv (args); cleanups = make_cleanup_freeargv (argv); - for (i = 0; argv[i] != NULL; ++i) + for (i = 0; argv != NULL && argv[i] != NULL; ++i) { if (strcmp (argv[i], "-pc") == 0) { @@ -1967,7 +1967,7 @@ maintenance_print_psymbols (char *args, int from_tty) stdio_file arg_outfile; - if (argv[outfile_idx] != NULL) + if (argv != NULL && argv[outfile_idx] != NULL) { char *outfile_name; diff --git a/gdb/symmisc.c b/gdb/symmisc.c index 07d571a..ab50570 100644 --- a/gdb/symmisc.c +++ b/gdb/symmisc.c @@ -418,7 +418,7 @@ maintenance_print_symbols (char *args, int from_tty) argv = gdb_buildargv (args); cleanups = make_cleanup_freeargv (argv); - for (i = 0; argv[i] != NULL; ++i) + for (i = 0; argv != NULL && argv[i] != NULL; ++i) { if (strcmp (argv[i], "-pc") == 0) { @@ -459,7 +459,7 @@ maintenance_print_symbols (char *args, int from_tty) stdio_file arg_outfile; - if (argv[outfile_idx] != NULL) + if (argv != NULL && argv[outfile_idx] != NULL) { char *outfile_name; @@ -721,7 +721,7 @@ maintenance_print_msymbols (char *args, int from_tty) argv = gdb_buildargv (args); cleanups = make_cleanup_freeargv (argv); - for (i = 0; argv[i] != NULL; ++i) + for (i = 0; argv != NULL && argv[i] != NULL; ++i) { if (strcmp (argv[i], "-objfile") == 0) { @@ -747,7 +747,7 @@ maintenance_print_msymbols (char *args, int from_tty) stdio_file arg_outfile; - if (argv[outfile_idx] != NULL) + if (argv != NULL && argv[outfile_idx] != NULL) { char *outfile_name; diff --git a/gdb/testsuite/gdb.base/maint.exp b/gdb/testsuite/gdb.base/maint.exp index 2853508..b87cbfc 100644 --- a/gdb/testsuite/gdb.base/maint.exp +++ b/gdb/testsuite/gdb.base/maint.exp @@ -561,6 +561,14 @@ gdb_expect { #set timeout $oldtimeout +# Testing that the commands work without an argument. For this test, +# we don't need an inferior loaded/running. +# See PR gdb/21164. +gdb_exit +gdb_start +gdb_test_no_output "maint print symbols" +gdb_test_no_output "maint print msymbols" +gdb_test_no_output "maint print psymbols" gdb_exit return 0