From mboxrd@z Thu Jan  1 00:00:00 1970
From: Frantisek Hrbata <fhrbata@redhat.com>
Subject: Re: [PATCH v2 2/4] gcov: add support for gcc 4.7 gcov format
Date: Thu, 19 Sep 2013 12:21:37 +0200
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To: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
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 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.
> >=20
> > 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.
> >=20
> > 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
> >=20
> > Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>
>=20
> The patch is missing an include statement:
>=20
>   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]
>=20
> With that added, it compiles and works with gcc 4.3.4 and 4.7.2 on
> kernel 3.21-rc1 on s390x.
>=20
> --- a/kernel/gcov/gcc_4_7.c
> +++ b/kernel/gcov/gcc_4_7.c
> @@ -15,6 +15,7 @@
>  #include <linux/slab.h>
>  #include <linux/string.h>
>  #include <linux/seq_file.h>
> +#include <linux/vmalloc.h>
>  #include "gcov.h"
>=20
>  #define GCOV_COUNTERS			8
>=20

Hi Peter,

I'm sorry I missed that. Many thanks. In addition, do you have any othe=
r
objedtions to the code? Andrew already added the patches to the -mm tre=
e.
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.

Many thanks

--=20
=46rantisek Hrbata