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From: Changbin Du <changbin.du@huawei.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
	Ian Rogers <irogers@google.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	<linux-perf-users@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, Hui Wang <hw.huiwang@huawei.com>,
	Changbin Du <changbin.du@huawei.com>
Subject: [PATCH v4 1/2] perf script: print raw ip instead of binary offset for callchain
Date: Fri, 14 Apr 2023 11:25:46 +0800	[thread overview]
Message-ID: <20230414032547.2767909-2-changbin.du@huawei.com> (raw)
In-Reply-To: <20230414032547.2767909-1-changbin.du@huawei.com>

Before this, the raw ip is printed for non-callchain and dso offset for
callchain. This inconsistent output for address may confuse people. And
mostly what we expect is the raw ip.

'dso offset' is printed in callchain:
$ perf script
...
ls 1341034 2739463.008343:    2162417 cycles:
        ffffffff99d657a7 [unknown] ([unknown])
        ffffffff99e00b67 [unknown] ([unknown])
                   235d3 memset+0x53 (/usr/lib/x86_64-linux-gnu/ld-2.31.so)  # dso offset
                    a61b _dl_map_object+0x1bb (/usr/lib/x86_64-linux-gnu/ld-2.31.so)

raw ip is printed for non-callchain:
$ perf script  -G
	...
        ls 1341034 2739463.008876:    2053304 cycles:  ffffffffc1596923 [unknown] ([unknown])
        ls 1341034 2739463.009381:    1917049 cycles:      14def8e149e6 __strcoll_l+0xd96 (/usr/lib/x86_64-linux-gnu/libc-2.31.so) # raw ip

Let's have consistent output for it. Later I'll add a new field 'dsoff' to
print dso offset.

Signed-off-by: Changbin Du <changbin.du@huawei.com>
---
 tools/perf/util/evsel_fprintf.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/evsel_fprintf.c b/tools/perf/util/evsel_fprintf.c
index bd22c4932d10..1fb8044d402e 100644
--- a/tools/perf/util/evsel_fprintf.c
+++ b/tools/perf/util/evsel_fprintf.c
@@ -153,13 +153,8 @@ int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment,
 			if (map)
 				addr = map->map_ip(map, node->ip);
 
-			if (print_ip) {
-				/* Show binary offset for userspace addr */
-				if (map && !map->dso->kernel)
-					printed += fprintf(fp, "%c%16" PRIx64, s, addr);
-				else
-					printed += fprintf(fp, "%c%16" PRIx64, s, node->ip);
-			}
+			if (print_ip)
+				printed += fprintf(fp, "%c%16" PRIx64, s, node->ip);
 
 			if (print_sym) {
 				printed += fprintf(fp, " ");
-- 
2.25.1


  reply	other threads:[~2023-04-14  3:26 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-14  3:25 [PATCH v4 0/2] perf script: Have consistent output for symbol address Changbin Du
2023-04-14  3:25 ` Changbin Du [this message]
2023-04-14  3:25 ` [PATCH v4 2/2] perf: script: add new output field 'dsoff' to print dso offset Changbin Du
2023-04-17  5:40   ` Adrian Hunter
2023-04-18  3:14     ` Changbin Du

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