Em Thu, Dec 24, 2015 at 10:05:34AM +0900, Namhyung Kim escreveu:
> The raw_data and raw_size fields are to provide tracepoint specific
> information.  They will be used by dynamic sort keys later.
> 
> Signed-off-by: Namhyung Kim <[email protected]>
> ---
> make a copy of raw_data
> 
>  tools/perf/util/hist.c | 27 +++++++++++++++++++++++++++
>  tools/perf/util/sort.h |  2 ++
>  2 files changed, 29 insertions(+)
> 
> diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
> index 039bb91d0a92..df5567fff986 100644
> --- a/tools/perf/util/hist.c
> +++ b/tools/perf/util/hist.c
> @@ -369,6 +369,28 @@ static struct hist_entry *hist_entry__new(struct 
> hist_entry *template,
>               if (symbol_conf.use_callchain)
>                       callchain_init(he->callchain);
>  
> +             if (he->raw_data) {
> +                     void *data = malloc(he->raw_size);

if this is really needed, please use memdup(), I.e.:

                        memdup(he->raw_data, he->raw_size);

> +                     if (data == NULL) {
> +                             map__put(he->ms.map);
> +                             if (he->branch_info) {
> +                                     map__put(he->branch_info->from.map);
> +                                     map__put(he->branch_info->to.map);
> +                                     free(he->branch_info);
> +                             }
> +                             if (he->mem_info) {
> +                                     map__put(he->mem_info->iaddr.map);
> +                                     map__put(he->mem_info->daddr.map);
> +                             }
> +                             free(he->stat_acc);
> +                             free(he);
> +                             return NULL;
> +                     }
> +
> +                     memcpy(data, he->raw_data, he->raw_size);
> +                     he->raw_data = data;
> +             }
>               INIT_LIST_HEAD(&he->pairs.node);
>               thread__get(he->thread);
>       }
> @@ -487,6 +509,8 @@ struct hist_entry *__hists__add_entry(struct hists *hists,
>               .branch_info = bi,
>               .mem_info = mi,
>               .transaction = sample->transaction,
> +             .raw_data = sample->raw_data,
> +             .raw_size = sample->raw_size,
>       };
>  
>       return hists__findnew_entry(hists, &entry, al, sample_self);
> @@ -801,6 +825,8 @@ iter_add_next_cumulative_entry(struct hist_entry_iter 
> *iter,
>                       .sym = al->sym,
>               },
>               .parent = iter->parent,
> +             .raw_data = sample->raw_data,
> +             .raw_size = sample->raw_size,
>       };
>       int i;
>       struct callchain_cursor cursor;
> @@ -974,6 +1000,7 @@ void hist_entry__delete(struct hist_entry *he)
>       if (he->srcfile && he->srcfile[0])
>               free(he->srcfile);
>       free_callchain(he->callchain);
> +     free(he->raw_data);
>       free(he);
>  }
>  
> diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
> index 86f05e7a5566..d29898708dbd 100644
> --- a/tools/perf/util/sort.h
> +++ b/tools/perf/util/sort.h
> @@ -122,6 +122,8 @@ struct hist_entry {
>       struct branch_info      *branch_info;
>       struct hists            *hists;
>       struct mem_info         *mem_info;
> +     void                    *raw_data;
> +     u32                     raw_size;
>       struct callchain_root   callchain[0]; /* must be last member */
>  };
>  
> -- 
> 2.6.4
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