Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753724Ab3IRVba (ORCPT ); Wed, 18 Sep 2013 17:31:30 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:46717 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751873Ab3IRVb3 (ORCPT ); Wed, 18 Sep 2013 17:31:29 -0400 Date: Wed, 18 Sep 2013 14:31:27 -0700 From: Andrew Morton To: Joe Perches Cc: Frantisek Hrbata , linux-kernel@vger.kernel.org, jstancek@redhat.com, keescook@chromium.org, peter.oberparleiter@de.ibm.com, rusty@rustcorp.com.au, linux-arch@vger.kernel.org, arnd@arndb.de, mgahagan@redhat.com, agospoda@redhat.com Subject: Re: [PATCH v2 2/4] gcov: add support for gcc 4.7 gcov format Message-Id: <20130918143127.8dbdf6bc5e9d076a87cb2582@linux-foundation.org> In-Reply-To: <1379539625.1787.77.camel@joe-AO722> References: <1378305776-3644-1-git-send-email-fhrbata@redhat.com> <1378305776-3644-3-git-send-email-fhrbata@redhat.com> <20130918142259.8c504e7cfbc8318a0550a891@linux-foundation.org> <1379539625.1787.77.camel@joe-AO722> X-Mailer: Sylpheed 3.2.0beta5 (GTK+ 2.24.10; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1660 Lines: 39 On Wed, 18 Sep 2013 14:27:05 -0700 Joe Perches wrote: > On Wed, 2013-09-18 at 14:22 -0700, Andrew Morton wrote: > > On Wed, 4 Sep 2013 16:42:54 +0200 Frantisek Hrbata wrote: > > > The gcov in-memory format changed in gcc 4.7. The biggest change, which > > > requires this special implementation, is that gcov_info no longer contains > > > array of counters for each counter type for all functions and gcov_fn_info is > > > not used for mapping of function's counters to these arrays(offset). Now each > > > gcov_fn_info contans it's counters, which makes things a little bit easier. > > > > > > This is heavily based on the previous gcc_3_4.c implementation and patches > > > provided by Peter Oberparleiter. Specially the buffer gcda implementation for > > > iterator. > > > > A couple of little tweaks: > [] > > +++ a/kernel/gcov/gcc_4_7.c > [] > > @@ -267,8 +266,8 @@ struct gcov_info *gcov_info_dup(struct g > > if (!dup->filename) > > goto err_free; > > > > - dup->functions = kzalloc(sizeof(struct gcov_fn_info *) * > > - info->n_functions, GFP_KERNEL); > > + dup->functions = kcalloc(sizeof(struct gcov_fn_info *), > > + info->n_functions, GFP_KERNEL); > > kcalloc(n, size_t, flags) > > dup->functions = kcalloc(info->n_functions, > sizeof(struct gcov_fn_info *), GFP_KERNEL); > Already did that after checkpatch whined at me. Stupid thing. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/