linux-kernel - Re: [PATCH 1/2] s390/perf: fix perf annotate error -95 (4.10 regression)

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Date:   Fri, 7 Apr 2017 12:23:41 -0300
From:   Arnaldo Carvalho de Melo <acme@...hat.com>
To:     Christian Borntraeger <borntraeger@...ibm.com>
Cc:     linux-kernel@...r.kernel.org,
        Hendrik Brueckner <brueckner@...ux.vnet.ibm.com>,
        Andreas Krebbel <krebbel@...ux.vnet.ibm.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        linux-s390 <linux-s390@...r.kernel.org>,
        Martin Schwidefsky <schwidefsky@...ibm.com>
Subject: Re: [PATCH 1/2] s390/perf: fix perf annotate error -95 (4.10
 regression)

Em Thu, Apr 06, 2017 at 09:51:51AM +0200, Christian Borntraeger escreveu:
> since 4.10 perf annotate exits on s390 with an "unknown error -95".
> Turns out that commit 786c1b51844d ("perf annotate: Start supporting
> cross arch annotation") added a hard requirement for architecture

Argh, that was unfortunate, I'll apply your patches and try to remove
that restriction, using the defaults previously in place :-\

thanks,

- Arnaldo


> support when objdump is used but only provided x86 and arm
> support. Meanwhile power was added so lets add s390 as well.
> 
> While at it make sure to implement the branch and jump types.
> 
> Signed-off-by: Christian Borntraeger <borntraeger@...ibm.com>
> Fixes: 786c1b51844 "perf annotate: Start supporting cross arch annotation"
> Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
> ---
>  tools/perf/util/annotate.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
> index 273f21f..7aa5722 100644
> --- a/tools/perf/util/annotate.c
> +++ b/tools/perf/util/annotate.c
> @@ -130,6 +130,12 @@ static struct arch architectures[] = {
>  		.name = "powerpc",
>  		.init = powerpc__annotate_init,
>  	},
> +	{
> +		.name = "s390",
> +		.objdump =  {
> +			.comment_char = '#',
> +		},
> +	},
>  };
>  
>  static void ins__delete(struct ins_operands *ops)
> -- 
> 2.7.4