From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Oberparleiter Subject: Re: [PATCH v2 2/4] gcov: add support for gcc 4.7 gcov format Date: Thu, 19 Sep 2013 12:31:54 +0200 Message-ID: <523AD29A.3080705@linux.vnet.ibm.com> References: <1378305776-3644-1-git-send-email-fhrbata@redhat.com> <1378305776-3644-3-git-send-email-fhrbata@redhat.com> <523ABE10.6060802@linux.vnet.ibm.com> <20130919102137.GB2313@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from e06smtp13.uk.ibm.com ([195.75.94.109]:39213 "EHLO e06smtp13.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751869Ab3ISKbl (ORCPT ); Thu, 19 Sep 2013 06:31:41 -0400 Received: from /spool/local by e06smtp13.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 19 Sep 2013 11:31:39 +0100 In-Reply-To: <20130919102137.GB2313@localhost.localdomain> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Frantisek Hrbata Cc: 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, akpm@linux-foundation.org On 19.09.2013 12:21, Frantisek Hrbata wrote: > On Thu, Sep 19, 2013 at 11:04:16AM +0200, Peter Oberparleiter wrote: >> On 04.09.2013 16:42, Frantisek Hrbata wrote: >>> The gcov in-memory format changed in gcc 4.7. The biggest change, w= hich >>> requires this special implementation, is that gcov_info no longer c= ontains >>> 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)= =2E 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 implemen= tation for >>> iterator. >>> >>> v2: - removed const definition for gcov_fn_info in gcov_info >>> - use vmalloc for counter values in gcov_info_dup >>> - use iter buffer for gcda >>> >>> Signed-off-by: Frantisek Hrbata >> >> The patch is missing an include statement: >> >> CC kernel/gcov/gcc_4_7.o >> kernel/gcov/gcc_4_7.c: In function =91gcov_info_dup=92: >> kernel/gcov/gcc_4_7.c:293:4: error: implicit declaration of function= =91vmalloc=92 [-Werror=3Dimplicit-function-declaration] >> kernel/gcov/gcc_4_7.c:293:20: warning: assignment makes pointer from= integer without a cast [enabled by default] >> >> With that added, it compiles and works with gcc 4.3.4 and 4.7.2 on >> kernel 3.21-rc1 on s390x. >> >> --- a/kernel/gcov/gcc_4_7.c >> +++ b/kernel/gcov/gcc_4_7.c >> @@ -15,6 +15,7 @@ >> #include >> #include >> #include >> +#include >> #include "gcov.h" >> >> #define GCOV_COUNTERS 8 >> >=20 > Hi Peter, >=20 > I'm sorry I missed that. Many thanks. In addition, do you have any ot= her > objedtions to the code? Andrew already added the patches to the -mm t= ree. > Andrew, should I post a follow up patch adding the vmalloc.h include = or is it > possible to fix it directly as you did for the previous patches?=20 > Again I'm sorry for the inconvenience. With the fix applied I have no further objections. Reviewed-by: Peter Oberparleiter Thanks! --=20 Peter Oberparleiter Linux on System z Development - IBM Germany