From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Clark Williams <williams@redhat.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Adrian Hunter <adrian.hunter@intel.com>,
Andi Kleen <ak@linux.intel.com>, Jiri Olsa <jolsa@redhat.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 22/27] perf db-export: Add trace begin / end branch type variants
Date: Mon, 24 Sep 2018 12:02:37 -0300 [thread overview]
Message-ID: <20180924150242.14235-23-acme@kernel.org> (raw)
In-Reply-To: <20180924150242.14235-1-acme@kernel.org>
From: Adrian Hunter <adrian.hunter@intel.com>
Add branch types to cover different combinations with "trace begin" or
"trace end".
Previously, the Intel PT decoder would indicate begin / end by a branch
from / to zero. That hides useful information, in particular when a
trace ends with a call. Before remedying that, prepare the database
export to export branch types with more combinations that include trace
begin / end. In those cases extend the descriptions to include 'trace
begin' and 'trace end' separately.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20180920130048.31432-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/db-export.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/tools/perf/util/db-export.c b/tools/perf/util/db-export.c
index 7123746edcf4..69fbb0a72d0c 100644
--- a/tools/perf/util/db-export.c
+++ b/tools/perf/util/db-export.c
@@ -463,6 +463,28 @@ int db_export__branch_types(struct db_export *dbe)
if (err)
break;
}
+
+ /* Add trace begin / end variants */
+ for (i = 0; branch_types[i].name ; i++) {
+ const char *name = branch_types[i].name;
+ u32 type = branch_types[i].branch_type;
+ char buf[64];
+
+ if (type == PERF_IP_FLAG_BRANCH ||
+ (type & (PERF_IP_FLAG_TRACE_BEGIN | PERF_IP_FLAG_TRACE_END)))
+ continue;
+
+ snprintf(buf, sizeof(buf), "trace begin / %s", name);
+ err = db_export__branch_type(dbe, type | PERF_IP_FLAG_TRACE_BEGIN, buf);
+ if (err)
+ break;
+
+ snprintf(buf, sizeof(buf), "%s / trace end", name);
+ err = db_export__branch_type(dbe, type | PERF_IP_FLAG_TRACE_END, buf);
+ if (err)
+ break;
+ }
+
return err;
}
--
2.14.4
next prev parent reply other threads:[~2018-09-24 15:05 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-24 15:02 [GIT PULL 00/27] perf/core improvements and fixes Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 01/27] perf help: Add missing subcommand `version` Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 02/27] perf tools: Report itrace options in help Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 03/27] tools lib subcmd: Support overwriting the pager Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 04/27] perf script: Allow sym and dso without ip, addr Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 05/27] perf script: Print DSO for callindent Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 06/27] tools lib traceevent, perf tools: Rename struct event_format to struct tep_event_format Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 07/27] tools lib traceevent, perf tools: Rename struct format{_field} to struct tep_format{_field} Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 08/27] tools lib traceevent, perf tools: Rename enum format_flags to enum tep_format_flags Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 09/27] tools lib traceevent: Rename enum event_{sort_}type to enum tep_event_{sort_}type Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 10/27] tools lib traceevent: Add prefix TEP_ to all EVENT_FL_* flags Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 11/27] tools lib traceevent, perf tools: Add prefix tep_ to all print_* structures Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 12/27] tools lib traceevent, perf tools: Rename enum print_arg_type to enum tep_print_arg_type Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 13/27] tools lib traceevent: Add prefix tep_ to enums filter_{boolean,op,cmp}_type Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 14/27] tools lib traceevent: Add prefix tep_ to enums filter_{exp,arg}_type Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 15/27] tools lib traceevent: Add prefix tep_ to struct filter_{arg,value_type} Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 16/27] tools lib traceevent: Add prefix tep_ to various structs filter_arg_* Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 17/27] tools lib traceevent: Add prefix tep_ to structs filter_type and event_filter Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 18/27] tools lib traceevent: Rename struct plugin_list to struct tep_plugin_list Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 19/27] tools lib traceevent: Rename data2host*() APIs Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 20/27] tools lib traceevent: Add prefix tep_ to enum filter_trivial_type Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 21/27] perf script: Enhance sample flags for trace begin / end Arnaldo Carvalho de Melo
2018-09-24 15:02 ` Arnaldo Carvalho de Melo [this message]
2018-09-24 15:02 ` [PATCH 23/27] perf tools: Improve thread_stack__event() " Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 24/27] perf tools: Improve thread_stack__process() " Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 25/27] perf intel-pt: Add decoder flags " Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 26/27] perf intel-pt: Implement " Arnaldo Carvalho de Melo
2018-09-24 15:02 ` [PATCH 27/27] perf vendor events arm64: Revise core JSON events for eMAG Arnaldo Carvalho de Melo
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