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Date: Fri, 26 Oct 2018 00:46:42 -0700
From: tip-bot for Andi Kleen <tipbot@...or.com>
To: linux-tip-commits@...r.kernel.org
Cc: mingo@...nel.org, jolsa@...nel.org, acme@...hat.com,
leo.yan@...aro.org, kim.phillips@....com,
linux-kernel@...r.kernel.org, tglx@...utronix.de,
ak@...ux.intel.com, hpa@...or.com
Subject: [tip:perf/urgent] tools script: Add --call-trace and
--call-ret-trace
Commit-ID: d1b1552e15d41297abcaf3812378e3391d44fa6b
Gitweb: https://git.kernel.org/tip/d1b1552e15d41297abcaf3812378e3391d44fa6b
Author: Andi Kleen <ak@...ux.intel.com>
AuthorDate: Thu, 20 Sep 2018 11:05:38 -0700
Committer: Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Wed, 24 Oct 2018 15:29:55 -0300
tools script: Add --call-trace and --call-ret-trace
Add short cut options to print PT call trace and call-ret-trace, for
calls and call and returns. Roughly corresponds to ftrace function
tracer and function graph tracer.
Just makes these common use cases nicer to use.
% perf record -a -e intel_pt// sleep 1
% perf script --call-trace
perf 900 [000] 194167.205652203: ([kernel.kallsyms]) perf_pmu_enable
perf 900 [000] 194167.205652203: ([kernel.kallsyms]) __x86_indirect_thunk_rax
perf 900 [000] 194167.205652203: ([kernel.kallsyms]) event_filter_match
perf 900 [000] 194167.205652203: ([kernel.kallsyms]) group_sched_in
perf 900 [000] 194167.205652203: ([kernel.kallsyms]) __x86_indirect_thunk_rax
perf 900 [000] 194167.205652203: ([kernel.kallsyms]) event_sched_in.isra.107
perf 900 [000] 194167.205652203: ([kernel.kallsyms]) perf_event_set_state.part.71
perf 900 [000] 194167.205652203: ([kernel.kallsyms]) perf_event_update_time
perf 900 [000] 194167.205652203: ([kernel.kallsyms]) perf_pmu_disable
perf 900 [000] 194167.205652203: ([kernel.kallsyms]) perf_log_itrace_start
perf 900 [000] 194167.205652203: ([kernel.kallsyms]) __x86_indirect_thunk_rax
perf 900 [000] 194167.205652203: ([kernel.kallsyms]) perf_event_update_userpage
% perf script --call-ret-trace
perf 900 [000] 194167.205652203: tr strt ([unknown]) pt_config
perf 900 [000] 194167.205652203: return ([kernel.kallsyms]) pt_config
perf 900 [000] 194167.205652203: return ([kernel.kallsyms]) pt_event_add
perf 900 [000] 194167.205652203: call ([kernel.kallsyms]) perf_pmu_enable
perf 900 [000] 194167.205652203: return ([kernel.kallsyms]) perf_pmu_nop_void
perf 900 [000] 194167.205652203: return ([kernel.kallsyms]) event_sched_in.isra.107
perf 900 [000] 194167.205652203: call ([kernel.kallsyms]) __x86_indirect_thunk_rax
perf 900 [000] 194167.205652203: return ([kernel.kallsyms]) perf_pmu_nop_int
perf 900 [000] 194167.205652203: return ([kernel.kallsyms]) group_sched_in
perf 900 [000] 194167.205652203: call ([kernel.kallsyms]) event_filter_match
perf 900 [000] 194167.205652203: return ([kernel.kallsyms]) event_filter_match
perf 900 [000] 194167.205652203: call ([kernel.kallsyms]) group_sched_in
perf 900 [000] 194167.205652203: call ([kernel.kallsyms]) __x86_indirect_thunk_rax
perf 900 [000] 194167.205652203: return ([kernel.kallsyms]) perf_pmu_nop_txn
perf 900 [000] 194167.205652203: call ([kernel.kallsyms]) event_sched_in.isra.107
perf 900 [000] 194167.205652203: call ([kernel.kallsyms]) perf_event_set_state.part.71
Signed-off-by: Andi Kleen <ak@...ux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Tested-by: Leo Yan <leo.yan@...aro.org>
Acked-by: Jiri Olsa <jolsa@...nel.org>
Cc: Kim Phillips <kim.phillips@....com>
Link: http://lkml.kernel.org/r/20180920180540.14039-4-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/Documentation/perf-script.txt | 7 +++++++
tools/perf/builtin-script.c | 24 ++++++++++++++++++++++++
2 files changed, 31 insertions(+)
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index 00c655ab4968..805baabd238e 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -390,6 +390,13 @@ include::itrace.txt[]
--xed::
Run xed disassembler on output. Requires installing the xed disassembler.
+--call-trace::
+ Show call stream for intel_pt traces. The CPUs are interleaved, but
+ can be filtered with -C.
+
+--call-ret-trace::
+ Show call and return stream for intel_pt traces.
+
SEE ALSO
--------
linkperf:perf-record[1], linkperf:perf-script-perl[1],
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 6099c722a679..566e1450898a 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -3122,6 +3122,26 @@ static int parse_xed(const struct option *opt __maybe_unused,
return 0;
}
+static int parse_call_trace(const struct option *opt __maybe_unused,
+ const char *str __maybe_unused,
+ int unset __maybe_unused)
+{
+ parse_output_fields(NULL, "-ip,-addr,-event,-period,+callindent", 0);
+ itrace_parse_synth_opts(opt, "cewp", 0);
+ nanosecs = true;
+ return 0;
+}
+
+static int parse_callret_trace(const struct option *opt __maybe_unused,
+ const char *str __maybe_unused,
+ int unset __maybe_unused)
+{
+ parse_output_fields(NULL, "-ip,-addr,-event,-period,+callindent,+flags", 0);
+ itrace_parse_synth_opts(opt, "crewp", 0);
+ nanosecs = true;
+ return 0;
+}
+
int cmd_script(int argc, const char **argv)
{
bool show_full_info = false;
@@ -3213,6 +3233,10 @@ int cmd_script(int argc, const char **argv)
"Decode instructions from itrace", parse_insn_trace),
OPT_CALLBACK_OPTARG(0, "xed", NULL, NULL, NULL,
"Run xed disassembler on output", parse_xed),
+ OPT_CALLBACK_OPTARG(0, "call-trace", &itrace_synth_opts, NULL, NULL,
+ "Decode calls from from itrace", parse_call_trace),
+ OPT_CALLBACK_OPTARG(0, "call-ret-trace", &itrace_synth_opts, NULL, NULL,
+ "Decode calls and returns from itrace", parse_callret_trace),
OPT_STRING(0, "stop-bt", &symbol_conf.bt_stop_list_str, "symbol[,symbol...]",
"Stop display of callgraph at these symbols"),
OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
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