From: Wang Nan <wangnan0@huawei.com>
To: Alexei Starovoitov <ast@kernel.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: "Adrian Hunter" <adrian.hunter@intel.com>,
"Cody P Schafer" <dev@codyps.com>,
"David S. Miller" <davem@davemloft.net>,
"He Kuang" <hekuang@huawei.com>,
"Jérémie Galarneau" <jeremie.galarneau@efficios.com>,
"Jiri Olsa" <jolsa@kernel.org>,
"Kirill Smelkov" <kirr@nexedi.com>,
"Li Zefan" <lizefan@huawei.com>,
"Masami Hiramatsu" <masami.hiramatsu.pt@hitachi.com>,
"Namhyung Kim" <namhyung@kernel.org>,
"Peter Zijlstra" <peterz@infradead.org>,
pi3orama@163.com, "Wang Nan" <wangnan0@huawei.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 36/54] perf record: Generate tracking events for process forked by perf
Date: Fri, 5 Feb 2016 14:02:01 +0000 [thread overview]
Message-ID: <1454680939-24963-37-git-send-email-wangnan0@huawei.com> (raw)
In-Reply-To: <1454680939-24963-1-git-send-email-wangnan0@huawei.com>
With 'perf record --switch-output' without -a, record__synthesize() in
record__switch_output() won't generate tracking events because there's
no thread_map in evlist. Which causes newly created perf.data doesn't
contain map and comm information.
This patch creates a fake thread_map and directly call
perf_event__synthesize_thread_map() for those events.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Signed-off-by: He Kuang <hekuang@huawei.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
---
tools/perf/builtin-record.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index de51134..e6a8b31 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -567,6 +567,23 @@ record__switch_output(struct record *rec, bool at_exit)
perf_session__create_kernel_maps(rec->session);
perf_session__set_id_hdr_size(rec->session);
record__synthesize(rec);
+
+ if (target__none(&rec->opts.target)) {
+ struct {
+ struct thread_map map;
+ struct thread_map_data map_data;
+ } thread_map;
+
+ thread_map.map.nr = 1;
+ thread_map.map.map[0].pid = rec->evlist->workload.pid;
+ thread_map.map.map[0].comm = NULL;
+ perf_event__synthesize_thread_map(&rec->tool,
+ &thread_map.map,
+ process_synthesized_event,
+ &rec->session->machines.host,
+ rec->opts.sample_address,
+ rec->opts.proc_map_timeout);
+ }
}
return fd;
}
--
1.8.3.4
next prev parent reply other threads:[~2016-02-05 14:13 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-05 14:01 [PATCH 00/54] perf tools: Bugfix, BPF improvements and overwrite ring buffer support Wang Nan
2016-02-05 14:01 ` [PATCH 01/54] perf tools: Fix dangling pointers in parse_events__free_terms Wang Nan
2016-02-16 7:53 ` [tip:perf/core] perf tools: Unlink entries from terms list tip-bot for Wang Nan
2016-02-16 7:54 ` [tip:perf/core] perf tools: Free the terms list_head in parse_events__free_terms() tip-bot for Wang Nan
2016-02-05 14:01 ` [PATCH 02/54] perf tools: Fix symbols searching for offline module in buildid-cache Wang Nan
2016-02-16 7:52 ` [tip:perf/core] perf symbols: Fix symbols searching for " tip-bot for Wang Nan
2016-02-05 14:01 ` [PATCH 03/54] perf tools: Record text offset in dso to calculate objdump address Wang Nan
2016-02-05 14:01 ` [PATCH 04/54] perf tools: Adjust symbol for shared objects Wang Nan
2016-02-05 14:01 ` [PATCH 05/54] perf data: Fix releasing event_class Wang Nan
[not found] ` <20160211220413.GF32168@kernel.org>
2016-02-12 12:19 ` Jiri Olsa
2016-02-12 15:42 ` Arnaldo Carvalho de Melo
2016-02-16 7:55 ` [tip:perf/core] " tip-bot for Wang Nan
2016-02-05 14:01 ` [PATCH 06/54] perf tools: Add API to config maps in bpf object Wang Nan
2016-02-05 14:01 ` [PATCH 07/54] perf tools: Enable BPF object configure syntax Wang Nan
2016-02-12 14:09 ` Jiri Olsa
2016-02-18 6:17 ` Wangnan (F)
2016-02-05 14:01 ` [PATCH 08/54] perf record: Apply config to BPF objects before recording Wang Nan
2016-02-12 20:55 ` Arnaldo Carvalho de Melo
2016-02-05 14:01 ` [PATCH 09/54] perf tools: Enable passing event to BPF object Wang Nan
2016-02-12 14:05 ` Jiri Olsa
2016-02-05 14:01 ` [PATCH 10/54] perf stat: Forbid user passing improper config terms Wang Nan
2016-02-12 13:49 ` Jiri Olsa
2016-02-12 15:45 ` Arnaldo Carvalho de Melo
2016-02-12 15:50 ` Jiri Olsa
2016-02-05 14:01 ` [PATCH 11/54] perf tools: Rename and move pmu_event_name to get_config_name Wang Nan
2016-02-05 14:01 ` [PATCH 12/54] perf tools: Enable config raw and numeric events Wang Nan
2016-02-12 13:52 ` Jiri Olsa
2016-02-12 13:56 ` pi3orama
2016-02-12 13:56 ` Jiri Olsa
2016-02-12 14:10 ` Jiri Olsa
2016-02-12 14:12 ` Jiri Olsa
2016-02-05 14:01 ` [PATCH 13/54] perf tools: Enable config and setting names for legacy cache events Wang Nan
2016-02-05 14:01 ` [PATCH 14/54] perf tools: Support setting different slots in a BPF map separately Wang Nan
2016-02-12 14:23 ` Jiri Olsa
2016-02-12 14:34 ` pi3orama
2016-02-05 14:01 ` [PATCH 15/54] perf tools: Enable indices setting syntax for BPF maps Wang Nan
2016-02-05 14:01 ` [PATCH 16/54] perf tools: Pass tracepoint options to BPF script Wang Nan
2016-02-05 14:01 ` [PATCH 17/54] perf tools: Introduce bpf-output event Wang Nan
2016-02-05 14:01 ` [PATCH 18/54] perf data: Support converting data from bpf_perf_event_output() Wang Nan
2016-02-05 14:01 ` [PATCH 19/54] perf core: Introduce new ioctl options to pause and resume ring buffer Wang Nan
2016-02-05 14:01 ` [PATCH 20/54] perf core: Set event's default overflow_handler Wang Nan
2016-02-05 14:01 ` [PATCH 21/54] perf core: Prepare writing into ring buffer from end Wang Nan
2016-02-05 14:01 ` [PATCH 22/54] perf core: Add backward attribute to perf event Wang Nan
2016-02-05 14:01 ` [PATCH 23/54] perf core: Reduce perf event output overhead by new overflow handler Wang Nan
2016-02-05 14:01 ` [PATCH 24/54] perf tools: Only validate is_pos for tracking evsels Wang Nan
2016-02-05 14:01 ` [PATCH 25/54] perf tools: Print write_backward value in perf_event_attr__fprintf Wang Nan
2016-02-05 14:01 ` [PATCH 26/54] perf tools: Make ordered_events reusable Wang Nan
2016-02-05 14:01 ` [PATCH 27/54] perf record: Extract synthesize code to record__synthesize() Wang Nan
2016-02-05 14:01 ` [PATCH 28/54] perf tools: Add perf_data_file__switch() helper Wang Nan
2016-02-05 14:01 ` [PATCH 29/54] perf record: Turns auxtrace_snapshot_enable into 3 states Wang Nan
2016-02-05 14:01 ` [PATCH 30/54] perf record: Introduce record__finish_output() to finish a perf.data Wang Nan
2016-02-05 14:01 ` [PATCH 31/54] perf record: Add '--timestamp-filename' option to append timestamp to output filename Wang Nan
2016-02-05 14:01 ` [PATCH 32/54] perf record: Split output into multiple files via '--switch-output' Wang Nan
2016-02-05 14:01 ` [PATCH 33/54] perf record: Force enable --timestamp-filename when --switch-output is provided Wang Nan
2016-02-05 14:01 ` [PATCH 34/54] perf record: Disable buildid cache options by default in switch output mode Wang Nan
2016-02-05 14:02 ` [PATCH 35/54] perf record: Re-synthesize tracking events after output switching Wang Nan
2016-02-05 14:02 ` Wang Nan [this message]
2016-02-05 14:02 ` [PATCH 37/54] perf record: Ensure return non-zero rc when mmap fail Wang Nan
2016-02-05 14:02 ` [PATCH 38/54] perf record: Prevent reading invalid data in record__mmap_read Wang Nan
2016-02-05 14:02 ` [PATCH 39/54] perf tools: Add evlist channel helpers Wang Nan
2016-02-05 14:02 ` [PATCH 40/54] perf tools: Automatically add new channel according to evlist Wang Nan
2016-02-05 14:02 ` [PATCH 41/54] perf tools: Operate multiple channels Wang Nan
2016-02-05 14:02 ` [PATCH 42/54] perf tools: Squash overwrite setting into channel Wang Nan
2016-02-05 14:02 ` [PATCH 43/54] perf record: Don't read from and poll overwrite channel Wang Nan
2016-02-05 14:02 ` [PATCH 44/54] perf record: Don't poll on " Wang Nan
2016-02-05 14:02 ` [PATCH 45/54] perf tools: Detect avalibility of write_backward Wang Nan
2016-02-05 14:02 ` [PATCH 46/54] perf tools: Enable overwrite settings Wang Nan
2016-02-05 14:02 ` [PATCH 47/54] perf tools: Set write_backward attribut bit for overwrite events Wang Nan
2016-02-05 14:02 ` [PATCH 48/54] perf tools: Record fd into perf_mmap Wang Nan
2016-02-05 14:02 ` [PATCH 49/54] perf tools: Add API to pause a channel Wang Nan
2016-02-05 14:02 ` [PATCH 50/54] perf record: Toggle overwrite ring buffer for reading Wang Nan
2016-02-05 14:02 ` [PATCH 51/54] perf record: Rename variable to make code clear Wang Nan
2016-02-05 14:02 ` [PATCH 52/54] perf record: Read from backward ring buffer Wang Nan
2016-02-05 14:02 ` [PATCH 53/54] perf record: Allow generate tracking events at the end of output Wang Nan
2016-02-05 14:02 ` [PATCH 54/54] perf tools: Don't warn about out of order event if write_backward is used Wang Nan
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