linux-kernel - Re: [PATCH V2 3/3] perf script: Improve srcline display for BTS

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 10 Dec 2013 09:04:00 +0200
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
CC:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...hat.com>, Mike Galbraith <efault@....de>,
	Namhyung Kim <namhyung@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Stephane Eranian <eranian@...gle.com>,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH V2 3/3] perf script: Improve srcline display for BTS

On 09/12/13 20:04, Arnaldo Carvalho de Melo wrote:
> Em Fri, Dec 06, 2013 at 09:42:58AM +0200, Adrian Hunter escreveu:
>> Change the order of the output to put the srcline last.
>> e.g. old format:
> 
> Can you please always provide the command line used, so that people can
> quickly reproduce your results, before and after your changes?

OK

perf record -e branches:u -c 1 -d ls

perf script -fip,sym,symoff,addr,srcline

> 
> - Arnaldo
>  
>>           4028fc main+0x2c (/bin/ls)
>>   /build/buildd/coreutils-8.20/src/ls.c:1269 =>           40d8a0 set_program_name+0x0 (/bin/ls)
>>
>> new format:
>>
>>           4028fc main+0x2c (/bin/ls) =>           40d8a0 set_program_name+0x0 (/bin/ls)
>>   /build/buildd/coreutils-8.20/src/ls.c:1269
>>
>> Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
>> ---
>>  tools/perf/builtin-script.c | 20 +++++++++++++++-----
>>  1 file changed, 15 insertions(+), 5 deletions(-)
>>
>> diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
>> index 7a571fb..8997b69 100644
>> --- a/tools/perf/builtin-script.c
>> +++ b/tools/perf/builtin-script.c
>> @@ -428,15 +428,22 @@ static void print_sample_bts(union perf_event *event,
>>  			     struct addr_location *al)
>>  {
>>  	struct perf_event_attr *attr = &evsel->attr;
>> +	bool print_srcline_last = false;
>>  
>>  	/* print branch_from information */
>>  	if (PRINT_FIELD(IP)) {
>> -		if (!symbol_conf.use_callchain)
>> -			printf(" ");
>> -		else
>> +		unsigned int print_opts = output[attr->type].print_ip_opts;
>> +
>> +		if (symbol_conf.use_callchain && sample->callchain) {
>>  			printf("\n");
>> -		perf_evsel__print_ip(evsel, sample, machine, al,
>> -				     output[attr->type].print_ip_opts,
>> +		} else {
>> +			printf(" ");
>> +			if (print_opts & PRINT_IP_OPT_SRCLINE) {
>> +				print_srcline_last = true;
>> +				print_opts &= ~PRINT_IP_OPT_SRCLINE;
>> +			}
>> +		}
>> +		perf_evsel__print_ip(evsel, sample, machine, al, print_opts,
>>  				     PERF_MAX_STACK_DEPTH);
>>  	}
>>  
>> @@ -448,6 +455,9 @@ static void print_sample_bts(union perf_event *event,
>>  	     !output[attr->type].user_set))
>>  		print_sample_addr(event, sample, machine, thread, attr);
>>  
>> +	if (print_srcline_last)
>> +		map__fprintf_srcline(al->map, al->addr, "\n  ", stdout);
>> +
>>  	printf("\n");
>>  }
>>  
>> -- 
>> 1.7.11.7
> 
> 

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/