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Date: Wed, 27 Jan 2010 02:28:01 -0600
From: Tom Zanussi <tzanussi@...il.com>
To: linux-kernel@...r.kernel.org
Cc: mingo@...e.hu, fweisbec@...il.com, rostedt@...dmis.org,
k-keiichi@...jp.nec.com
Subject: [PATCH 10/12] perf trace/scripting: make the syscall map available as a Python dict
Create a Python extension that makes the perf syscall map into a
Python dict.
New instances of the syscall dict can be retrieved at any time by by
calling the Python function get_syscall_names().
Also adds a new utility function that makes uses of the syscall name
dict:
syscall_name(syscall_nr)
which returns a syscall name given a syscall_nr, or the number itself
if the syscall wasn't found in the map (or 'undefined' if the value
passed in was bogus).
Signed-off-by: Tom Zanussi <tzanussi@...il.com>
---
.../perf/scripts/python/Perf-Trace-Util/Context.c | 22 ++++++++++++++++++++
.../python/Perf-Trace-Util/lib/Perf/Trace/Util.py | 12 ++++++++++
.../perf/scripts/python/failed-syscalls-by-pid.py | 3 +-
tools/perf/scripts/python/syscall-counts-by-pid.py | 3 +-
tools/perf/scripts/python/syscall-counts.py | 3 +-
5 files changed, 40 insertions(+), 3 deletions(-)
diff --git a/tools/perf/scripts/python/Perf-Trace-Util/Context.c b/tools/perf/scripts/python/Perf-Trace-Util/Context.c
index 957085d..ebdcc35 100644
--- a/tools/perf/scripts/python/Perf-Trace-Util/Context.c
+++ b/tools/perf/scripts/python/Perf-Trace-Util/Context.c
@@ -72,6 +72,26 @@ static PyObject *perf_trace_context_common_lock_depth(PyObject *self,
return Py_BuildValue("i", retval);
}
+static PyObject *perf_trace_context_get_syscall_names(PyObject *self,
+ PyObject *args)
+{
+ const struct syscall_metadata *meta;
+ PyObject *dict;
+ int i;
+
+ dict = PyDict_New();
+ if (!dict)
+ return NULL;
+
+ for (i = 0; i < nr_syscalls(); i++) {
+ meta = syscall_at_idx(i);
+ PyDict_SetItem(dict, PyInt_FromLong(meta->nr),
+ PyString_FromString(meta->name));
+ }
+
+ return dict;
+}
+
static PyMethodDef ContextMethods[] = {
{ "common_pc", perf_trace_context_common_pc, METH_VARARGS,
"Get the common preempt count event field value."},
@@ -79,6 +99,8 @@ static PyMethodDef ContextMethods[] = {
"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."},
+ { "get_syscall_names", perf_trace_context_get_syscall_names,
+ METH_NOARGS, "Get the syscall_nr->syscall_name dict."},
{ NULL, NULL, 0, NULL}
};
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
index 83e9143..08d7d8e 100644
--- 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
@@ -6,6 +6,8 @@
# Public License ("GPL") version 2 as published by the Free Software
# Foundation.
+from perf_trace_context import *
+
NSECS_PER_SEC = 1000000000
def avg(total, n):
@@ -23,3 +25,13 @@ def nsecs_nsecs(nsecs):
def nsecs_str(nsecs):
str = "%5u.%09u" % (nsecs_secs(nsecs), nsecs_nsecs(nsecs)),
return str
+
+syscall_name_map = get_syscall_names()
+
+def syscall_name(id):
+ if id == -1:
+ return "undefined"
+ try:
+ return syscall_name_map[id]
+ except KeyError:
+ return str(id)
diff --git a/tools/perf/scripts/python/failed-syscalls-by-pid.py b/tools/perf/scripts/python/failed-syscalls-by-pid.py
index 0ca0227..007e959 100644
--- a/tools/perf/scripts/python/failed-syscalls-by-pid.py
+++ b/tools/perf/scripts/python/failed-syscalls-by-pid.py
@@ -13,6 +13,7 @@ sys.path.append(os.environ['PERF_EXEC_PATH'] + \
from perf_trace_context import *
from Core import *
+from Util import *
usage = "perf trace -s syscall-counts-by-pid.py [comm]\n";
@@ -62,7 +63,7 @@ def print_error_totals():
print "\n%s [%d]\n" % (comm, pid),
id_keys = syscalls[comm][pid].keys()
for id in id_keys:
- print " syscall: %-16d\n" % (id),
+ print " syscall: %-16s\n" % (syscall_name(id)),
ret_keys = syscalls[comm][pid][id].keys()
for ret, val in sorted(syscalls[comm][pid][id].iteritems(), key = lambda(k, v): (v, k), reverse = True):
print " err = %-20d %10d\n" % (ret, val),
diff --git a/tools/perf/scripts/python/syscall-counts-by-pid.py b/tools/perf/scripts/python/syscall-counts-by-pid.py
index af722d6..fffe0d6 100644
--- a/tools/perf/scripts/python/syscall-counts-by-pid.py
+++ b/tools/perf/scripts/python/syscall-counts-by-pid.py
@@ -13,6 +13,7 @@ sys.path.append(os.environ['PERF_EXEC_PATH'] + \
from perf_trace_context import *
from Core import *
+from Util import *
usage = "perf trace -s syscall-counts-by-pid.py [comm]\n";
@@ -61,4 +62,4 @@ def print_syscall_totals():
id_keys = syscalls[comm][pid].keys()
for id, val in sorted(syscalls[comm][pid].iteritems(), \
key = lambda(k, v): (v, k), reverse = True):
- print " %-38d %10d\n" % (id, val),
+ print " %-38s %10d\n" % (syscall_name(id), val),
diff --git a/tools/perf/scripts/python/syscall-counts.py b/tools/perf/scripts/python/syscall-counts.py
index f977e85..a641c6f 100644
--- a/tools/perf/scripts/python/syscall-counts.py
+++ b/tools/perf/scripts/python/syscall-counts.py
@@ -13,6 +13,7 @@ sys.path.append(os.environ['PERF_EXEC_PATH'] + \
from perf_trace_context import *
from Core import *
+from Util import *
usage = "perf trace -s syscall-counts.py [comm]\n";
@@ -55,4 +56,4 @@ def print_syscall_totals():
for id, val in sorted(syscalls.iteritems(), key = lambda(k, v): (v, k), \
reverse = True):
- print "%-40d %10d\n" % (id, val),
+ print "%-40s %10d\n" % (syscall_name(id), val),
--
1.6.4.GIT
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