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authorArun Kalyanasundaram <arunkaly@google.com>2017-07-22 01:04:22 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-07-26 04:43:21 +0300
commita641860550f05a4b8889dca61aab73c84b2d5e16 (patch)
tree05f75e875b9096f0e11af068d2341ca6d65f11db /tools/perf
parentf38d281663b011d1d8a1b0119bb8357706d134a8 (diff)
downloadlinux-a641860550f05a4b8889dca61aab73c84b2d5e16.tar.xz
perf script python: Generate hooks with additional argument
Modify the signature of tracepoint specific and trace_unhandled hooks to add the perf_sample dict as a new argument. Create a python helper function to print a dictionary. Signed-off-by: Arun Kalyanasundaram <arunkaly@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Carrillo-Cisneros <davidcc@google.com> Cc: David S. Miller <davem@davemloft.net> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Seongjae Park <sj38.park@gmail.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20170721220422.63962-6-arunkaly@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/util/scripting-engines/trace-event-python.c22
1 files changed, 18 insertions, 4 deletions
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 938b39f6ad31..c7187f067d31 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -1367,6 +1367,12 @@ static int python_generate_script(struct pevent *pevent, const char *outfile)
fprintf(ofp, "%s", f->name);
}
+ if (not_first++)
+ fprintf(ofp, ", ");
+ if (++count % 5 == 0)
+ fprintf(ofp, "\n\t\t");
+ fprintf(ofp, "perf_sample_dict");
+
fprintf(ofp, "):\n");
fprintf(ofp, "\t\tprint_header(event_name, common_cpu, "
@@ -1436,6 +1442,9 @@ static int python_generate_script(struct pevent *pevent, const char *outfile)
fprintf(ofp, ")\n\n");
+ fprintf(ofp, "\t\tprint 'Sample: {'+"
+ "get_dict_as_string(perf_sample_dict['sample'], ', ')+'}'\n\n");
+
fprintf(ofp, "\t\tfor node in common_callchain:");
fprintf(ofp, "\n\t\t\tif 'sym' in node:");
fprintf(ofp, "\n\t\t\t\tprint \"\\t[%%x] %%s\" %% (node['ip'], node['sym']['name'])");
@@ -1446,15 +1455,20 @@ static int python_generate_script(struct pevent *pevent, const char *outfile)
}
fprintf(ofp, "def trace_unhandled(event_name, context, "
- "event_fields_dict):\n");
+ "event_fields_dict, perf_sample_dict):\n");
- fprintf(ofp, "\t\tprint ' '.join(['%%s=%%s'%%(k,str(v))"
- "for k,v in sorted(event_fields_dict.items())])\n\n");
+ fprintf(ofp, "\t\tprint get_dict_as_string(event_fields_dict)\n");
+ fprintf(ofp, "\t\tprint 'Sample: {'+"
+ "get_dict_as_string(perf_sample_dict['sample'], ', ')+'}'\n\n");
fprintf(ofp, "def print_header("
"event_name, cpu, secs, nsecs, pid, comm):\n"
"\tprint \"%%-20s %%5u %%05u.%%09u %%8u %%-20s \" %% \\\n\t"
- "(event_name, cpu, secs, nsecs, pid, comm),\n");
+ "(event_name, cpu, secs, nsecs, pid, comm),\n\n");
+
+ fprintf(ofp, "def get_dict_as_string(a_dict, delimiter=' '):\n"
+ "\treturn delimiter.join"
+ "(['%%s=%%s'%%(k,str(v))for k,v in sorted(a_dict.items())])\n");
fclose(ofp);