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From: Jiri Olsa <jolsa@redhat•com>
To: Kajol Jain <kjain@linux•ibm.com>
Cc: mark.rutland@arm•com, maddy@linux•vnet.ibm.com,
	peterz@infradead•org, yao.jin@linux•intel.com, mingo@kernel•org,
	kan.liang@linux•intel.com, ak@linux•intel.com,
	alexander.shishkin@linux•intel.com, anju@linux•vnet.ibm.com,
	mamatha4@linux•vnet.ibm.com, sukadev@linux•vnet.ibm.com,
	ravi.bangoria@linux•ibm.com, acme@kernel•org, jmario@redhat•com,
	namhyung@kernel•org, tglx@linutronix•de, mpetlan@redhat•com,
	gregkh@linuxfoundation•org, linux-kernel@vger•kernel.org,
	linux-perf-users@vger•kernel.org, jolsa@kernel•org,
	linuxppc-dev@lists•ozlabs.org
Subject: Re: [PATCH v4 6/8] perf/tools: Enhance JSON/metric infrastructure to handle "?"
Date: Thu, 12 Mar 2020 11:50:44 +0100	[thread overview]
Message-ID: <20200312105044.GA311223@krava> (raw)
In-Reply-To: <20200309062552.29911-7-kjain@linux.ibm.com>

On Mon, Mar 09, 2020 at 11:55:50AM +0530, Kajol Jain wrote:

SNIP

> diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
> index c3a8c701609a..11eeeb929b91 100644
> --- a/tools/perf/util/metricgroup.c
> +++ b/tools/perf/util/metricgroup.c
> @@ -474,6 +474,98 @@ static bool metricgroup__has_constraint(struct pmu_event *pe)
>  	return false;
>  }
>  
> +int __weak arch_get_runtimeparam(void)
> +{
> +	return 1;
> +}
> +
> +static int metricgroup__add_metric_runtime_param(struct strbuf *events,
> +			struct list_head *group_list, struct pmu_event *pe)
> +{
> +	int i, count;
> +	int ret = -EINVAL;
> +
> +	count = arch_get_runtimeparam();
> +
> +	/* This loop is added to create multiple
> +	 * events depend on count value and add
> +	 * those events to group_list.
> +	 */
> +
> +	for (i = 0; i < count; i++) {
> +		const char **ids;
> +		int idnum;
> +		struct egroup *eg;
> +		char value[PATH_MAX];
> +
> +		expr__runtimeparam = i;

so the expr__runtimeparam is always set before we call the
expr parsing function - wither expr__find_other or expr__parse,

and it's used inside the normalize flexer function, which has
access to the passed context.. so I don't see a reason why
expr__runtimeparam couldn't be added in struct parse_ctx
and used from there..

while in this, perhaps we should rename parse_ctx to expr_ctx,
to keep the namespace straight (in separate patch)

thanks,
jirka


  parent reply	other threads:[~2020-03-12 10:53 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-09  6:25 [PATCH v4 0/8] powerpc/perf: Add json file metric support for the hv_24x7 socket/chip level events Kajol Jain
2020-03-09  6:25 ` [PATCH v4 1/8] powerpc/perf/hv-24x7: Fix inconsistent output values incase multiple hv-24x7 events run Kajol Jain
2020-03-09  6:25 ` [PATCH v4 2/8] powerpc/hv-24x7: Add rtas call in hv-24x7 driver to get processor details Kajol Jain
2020-03-09  6:25 ` [PATCH v4 3/8] powerpc/hv-24x7: Add sysfs files inside hv-24x7 device to show " Kajol Jain
2020-03-09  6:25 ` [PATCH v4 4/8] Documentation/ABI: Add ABI documentation for chips and sockets Kajol Jain
2020-03-09  6:25 ` [PATCH v4 5/8] powerpc/hv-24x7: Update post_mobility_fixup() to handle migration Kajol Jain
2020-03-09  6:25 ` [PATCH v4 6/8] perf/tools: Enhance JSON/metric infrastructure to handle "?" Kajol Jain
2020-03-10 18:34   ` Arnaldo Carvalho de Melo
2020-03-12  6:11     ` kajoljain
2020-03-12 10:51     ` Jiri Olsa
2020-03-12 10:50   ` Jiri Olsa [this message]
2020-03-12 10:51   ` Jiri Olsa
2020-03-12 10:52   ` Jiri Olsa
2020-03-13 12:26     ` kajoljain
2020-03-12 10:52   ` Jiri Olsa
2020-03-09  6:25 ` [PATCH v4 7/8] tools/perf: Enable Hz/hz prinitg for --metric-only option Kajol Jain
2020-03-09  6:25 ` [PATCH v4 8/8] perf/tools/pmu-events/powerpc: Add hv_24x7 socket/chip level metric events Kajol Jain
2020-03-09  9:35 ` [PATCH v4 0/8] powerpc/perf: Add json file metric support for the hv_24x7 socket/chip level events Jiri Olsa
2020-03-09 11:22   ` Arnaldo Melo
2020-03-10 18:18   ` Arnaldo Carvalho de Melo
2020-03-10 18:31     ` Jiri Olsa

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