linux-kernel - Re: [PATCH 21/26] perf tools: Add machine__for_each

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Date:   Mon, 14 Sep 2020 13:15:10 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Ingo Molnar <mingo@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Michael Petlan <mpetlan@...hat.com>,
        Song Liu <songliubraving@...com>,
        "Frank Ch. Eigler" <fche@...hat.com>,
        Ian Rogers <irogers@...gle.com>,
        Stephane Eranian <eranian@...gle.com>,
        Alexey Budankov <alexey.budankov@...ux.intel.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Adrian Hunter <adrian.hunter@...el.com>
Subject: Re: [PATCH 21/26] perf tools: Add machine__for_each_dso function

Em Sun, Sep 13, 2020 at 11:03:08PM +0200, Jiri Olsa escreveu:
> Adding machine__for_each_dso to iterate over all dso
> objects defined for the within the machine. It will
> be used in following changes.

prep work, applying.

- Arnaldo
 
> Signed-off-by: Jiri Olsa <jolsa@...nel.org>
> ---
>  tools/perf/util/machine.c | 12 ++++++++++++
>  tools/perf/util/machine.h |  4 ++++
>  2 files changed, 16 insertions(+)
> 
> diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
> index 863d949ef967..f8e8d0d80847 100644
> --- a/tools/perf/util/machine.c
> +++ b/tools/perf/util/machine.c
> @@ -3181,3 +3181,15 @@ char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, ch
>  	*addrp = map->unmap_ip(map, sym->start);
>  	return sym->name;
>  }
> +
> +int machine__for_each_dso(struct machine *machine, machine__dso_t fn, void *priv)
> +{
> +	struct dso *pos;
> +	int err = 0;
> +
> +	list_for_each_entry(pos, &machine->dsos.head, node) {
> +		if (fn(pos, machine, priv))
> +			err = -1;
> +	}
> +	return err;
> +}
> diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
> index a3c1d0bf89e5..504c707f22bb 100644
> --- a/tools/perf/util/machine.h
> +++ b/tools/perf/util/machine.h
> @@ -252,6 +252,10 @@ void machines__destroy_kernel_maps(struct machines *machines);
>  
>  size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
>  
> +typedef int (*machine__dso_t)(struct dso *dso, struct machine *machine, void *priv);
> +
> +int machine__for_each_dso(struct machine *machine, machine__dso_t fn,
> +			  void *priv);
>  int machine__for_each_thread(struct machine *machine,
>  			     int (*fn)(struct thread *thread, void *p),
>  			     void *priv);
> -- 
> 2.26.2
> 

-- 

- Arnaldo