From 7e4b21b84c43bb8a80b916e40718ca4ed1fc52e6 Mon Sep 17 00:00:00 2001
From: Tom Zanussi <tzanussi@gmail.com>
Date: Wed, 27 Jan 2010 02:27:57 -0600
Subject: perf/scripts: Add Python scripting engine
Add base support for Python scripting to perf trace.
Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Keiichi KII <k-keiichi@bx.jp.nec.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1264580883-15324-6-git-send-email-tzanussi@gmail.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
.../perf/scripts/python/Perf-Trace-Util/Context.c | 88 +++++++++++++++++++++
.../python/Perf-Trace-Util/lib/Perf/Trace/Core.py | 91 ++++++++++++++++++++++
.../python/Perf-Trace-Util/lib/Perf/Trace/Util.py | 25 ++++++
3 files changed, 204 insertions(+)
create mode 100644 tools/perf/scripts/python/Perf-Trace-Util/Context.c
create mode 100644 tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py
create mode 100644 tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py
(limited to 'tools/perf/scripts/python')
diff --git a/tools/perf/scripts/python/Perf-Trace-Util/Context.c b/tools/perf/scripts/python/Perf-Trace-Util/Context.c
new file mode 100644
index 000000000000..957085dd5d8d
--- /dev/null
+++ b/tools/perf/scripts/python/Perf-Trace-Util/Context.c
@@ -0,0 +1,88 @@
+/*
+ * Context.c. Python interfaces for perf trace.
+ *
+ * Copyright (C) 2010 Tom Zanussi <tzanussi@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <Python.h>
+#include "../../../perf.h"
+#include "../../../util/trace-event.h"
+
+PyMODINIT_FUNC initperf_trace_context(void);
+
+static PyObject *perf_trace_context_common_pc(PyObject *self, PyObject *args)
+{
+ static struct scripting_context *scripting_context;
+ PyObject *context;
+ int retval;
+
+ if (!PyArg_ParseTuple(args, "O", &context))
+ return NULL;
+
+ scripting_context = PyCObject_AsVoidPtr(context);
+ retval = common_pc(scripting_context);
+
+ return Py_BuildValue("i", retval);
+}
+
+static PyObject *perf_trace_context_common_flags(PyObject *self,
+ PyObject *args)
+{
+ static struct scripting_context *scripting_context;
+ PyObject *context;
+ int retval;
+
+ if (!PyArg_ParseTuple(args, "O", &context))
+ return NULL;
+
+ scripting_context = PyCObject_AsVoidPtr(context);
+ retval = common_flags(scripting_context);
+
+ return Py_BuildValue("i", retval);
+}
+
+static PyObject *perf_trace_context_common_lock_depth(PyObject *self,
+ PyObject *args)
+{
+ static struct scripting_context *scripting_context;
+ PyObject *context;
+ int retval;
+
+ if (!PyArg_ParseTuple(args, "O", &context))
+ return NULL;
+
+ scripting_context = PyCObject_AsVoidPtr(context);
+ retval = common_lock_depth(scripting_context);
+
+ return Py_BuildValue("i", retval);
+}
+
+static PyMethodDef ContextMethods[] = {
+ { "common_pc", perf_trace_context_common_pc, METH_VARARGS,
+ "Get the common preempt count event field value."},
+ { "common_flags", perf_trace_context_common_flags, METH_VARARGS,
+ "Get the common flags event field value."},
+ { "common_lock_depth", perf_trace_context_common_lock_depth,
+ METH_VARARGS, "Get the common lock depth event field value."},
+ { NULL, NULL, 0, NULL}
+};
+
+PyMODINIT_FUNC initperf_trace_context(void)
+{
+ (void) Py_InitModule("perf_trace_context", ContextMethods);
+}
diff --git a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py
new file mode 100644
index 000000000000..1dc464ee2ca8
--- /dev/null
+++ b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py
@@ -0,0 +1,91 @@
+# Core.py - Python extension for perf trace, core functions
+#
+# Copyright (C) 2010 by Tom Zanussi <tzanussi@gmail.com>
+#
+# This software may be distributed under the terms of the GNU General
+# Public License ("GPL") version 2 as published by the Free Software
+# Foundation.
+
+from collections import defaultdict
+
+def autodict():
+ return defaultdict(autodict)
+
+flag_fields = autodict()
+symbolic_fields = autodict()
+
+def define_flag_field(event_name, field_name, delim):
+ flag_fields[event_name][field_name]['delim'] = delim
+
+def define_flag_value(event_name, field_name, value, field_str):
+ flag_fields[event_name][field_name]['values'][value] = field_str
+
+def define_symbolic_field(event_name, field_name):
+ # nothing to do, really
+ pass
+
+def define_symbolic_value(event_name, field_name, value, field_str):
+ symbolic_fields[event_name][field_name]['values'][value] = field_str
+
+def flag_str(event_name, field_name, value):
+ string = ""
+
+ if flag_fields[event_name][field_name]:
+ print_delim = 0
+ keys = flag_fields[event_name][field_name]['values'].keys()
+ keys.sort()
+ for idx in keys:
+ if not value and not idx:
+ string += flag_fields[event_name][field_name]['values'][idx]
+ break
+ if idx and (value & idx) == idx:
+ if print_delim and flag_fields[event_name][field_name]['delim']:
+ string += " " + flag_fields[event_name][field_name]['delim'] + " "
+ string += flag_fields[event_name][field_name]['values'][idx]
+ print_delim = 1
+ value &= ~idx
+
+ return string
+
+def symbol_str(event_name, field_name, value):
+ string = ""
+
+ if symbolic_fields[event_name][field_name]:
+ keys = symbolic_fields[event_name][field_name]['values'].keys()
+ keys.sort()
+ for idx in keys:
+ if not value and not idx:
+ string = symbolic_fields[event_name][field_name]['values'][idx]
+ break
+ if (value == idx):
+ string = symbolic_fields[event_name][field_name]['values'][idx]
+ break
+
+ return string
+
+trace_flags = { 0x00: "NONE", \
+ 0x01: "IRQS_OFF", \
+ 0x02: "IRQS_NOSUPPORT", \
+ 0x04: "NEED_RESCHED", \
+ 0x08: "HARDIRQ", \
+ 0x10: "SOFTIRQ" }
+
+def trace_flag_str(value):
+ string = ""
+ print_delim = 0
+
+ keys = trace_flags.keys()
+
+ for idx in keys:
+ if not value and not idx:
+ string += "NONE"
+ break
+
+ if idx and (value & idx) == idx:
+ if print_delim:
+ string += " | ";
+ string += trace_flags[idx]
+ print_delim = 1
+ value &= ~idx
+
+ return string
diff --git a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py
new file mode 100644
index 000000000000..83e91435ed09
--- /dev/null
+++ b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py
@@ -0,0 +1,25 @@
+# Util.py - Python extension for perf trace, miscellaneous utility code
+#
+# Copyright (C) 2010 by Tom Zanussi <tzanussi@gmail.com>
+#
+# This software may be distributed under the terms of the GNU General
+# Public License ("GPL") version 2 as published by the Free Software
+# Foundation.
+
+NSECS_PER_SEC = 1000000000
+
+def avg(total, n):
+ return total / n
+
+def nsecs(secs, nsecs):
+ return secs * NSECS_PER_SEC + nsecs
+
+def nsecs_secs(nsecs):
+ return nsecs / NSECS_PER_SEC
+
+def nsecs_nsecs(nsecs):
+ return nsecs % NSECS_PER_SEC
+
+def nsecs_str(nsecs):
+ str = "%5u.%09u" % (nsecs_secs(nsecs), nsecs_nsecs(nsecs)),
+ return str
--
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