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SubjectRe: [PATCH v2 2/2] perf script: Support filtering by hex address
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Hi Jiri,

On 2/5/2021 5:49 PM, Jiri Olsa wrote:
> On Fri, Jan 29, 2021 at 03:08:54PM +0800, Jin Yao wrote:
>
> SNIP
>
>> + }
>> + }
>> +
>> if (!ret)
>> al->filtered |= (1 << HIST_FILTER__SYMBOL);
>> }
>> diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
>> index 64a039cbba1b..2c13f6acda7f 100644
>> --- a/tools/perf/util/symbol.c
>> +++ b/tools/perf/util/symbol.c
>> @@ -2406,6 +2406,39 @@ int setup_intlist(struct intlist **list, const char *list_str,
>> return 0;
>> }
>>
>> +static int setup_addrlist(struct intlist **addr_list, struct strlist *sym_list)
>> +{
>> + struct str_node *pos, *tmp;
>> + unsigned long val;
>> + char *sep;
>> + int err = 0, i = 0;
>> +
>> + *addr_list = intlist__new(NULL);
>> + if (!*addr_list)
>> + return -1;
>> +
>> + strlist__for_each_entry_safe(pos, tmp, sym_list) {
>> + val = strtoul(pos->s, &sep, 16);
>> + if (*sep != ',' && *sep != '\0')
>> + continue;
>
> I think you also need to check that val is valid and errno
> (check other strtoul we call in perf)
> because above could pass for:
>
> $ ./perf script -S ",7fd0f1b69a13"
> ls 651468 410180.795577: 90098 cycles:u: 7fd0f1b69a13 __GI___tunables_init+0x73 (/usr/lib64/ld-2.32.so)
>
>
> plus check for " " so we could do:
>
> $ ./perf script -S "7fd0f1b69a13 ,7fd0f1b5e189"
> ls 651468 410180.796055: 190731 cycles:u: 7fd0f1b5e189 _dl_relocate_object+0x4b9 (/usr/lib64/ld-2.32.so)
>
> $ ./perf script -S "7fd0f1b69a13,7fd0f1b5e189"
> ls 651468 410180.795577: 90098 cycles:u: 7fd0f1b69a13 __GI___tunables_init+0x73 (/usr/lib64/ld-2.32.so)
> ls 651468 410180.796055: 190731 cycles:u: 7fd0f1b5e189 _dl_relocate_object+0x4b9 (/usr/lib64/ld-2.32.so)
>
>
> thanks,
> jirka
>

Thanks for reminding. Yes, these cases I need to cover. I will prepare the v3.

Thanks
Jin Yao

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