601 lines
15 KiB
C
601 lines
15 KiB
C
|
/*
|
||
|
|
* trace-event-python. Feed trace events to an embedded Python interpreter.
|
||
|
|
*
|
||
|
|
* 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 <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <errno.h>
|
||
|
|
|
||
|
|
#include "../../perf.h"
|
||
|
|
#include "../util.h"
|
||
|
|
#include "../event.h"
|
||
|
|
#include "../thread.h"
|
||
|
|
#include "../trace-event.h"
|
||
|
|
|
||
|
|
PyMODINIT_FUNC initperf_trace_context(void);
|
||
|
|
|
||
|
|
#define FTRACE_MAX_EVENT \
|
||
|
|
((1 << (sizeof(unsigned short) * 8)) - 1)
|
||
|
|
|
||
|
|
struct event *events[FTRACE_MAX_EVENT];
|
||
|
|
|
||
|
|
#define MAX_FIELDS 64
|
||
|
|
#define N_COMMON_FIELDS 7
|
||
|
|
|
||
|
|
extern struct scripting_context *scripting_context;
|
||
|
|
|
||
|
|
static char *cur_field_name;
|
||
|
|
static int zero_flag_atom;
|
||
|
|
|
||
|
|
static PyObject *main_module, *main_dict;
|
||
|
|
|
||
|
|
static void handler_call_die(const char *handler_name)
|
||
|
|
{
|
||
|
|
PyErr_Print();
|
||
|
|
Py_FatalError("problem in Python trace event handler");
|
||
|
|
}
|
||
|
|
|
||
|
|
static void define_value(enum print_arg_type field_type,
|
||
|
|
const char *ev_name,
|
||
|
|
const char *field_name,
|
||
|
|
const char *field_value,
|
||
|
|
const char *field_str)
|
||
|
|
{
|
||
|
|
const char *handler_name = "define_flag_value";
|
||
|
|
PyObject *handler, *t, *retval;
|
||
|
|
unsigned long long value;
|
||
|
|
unsigned n = 0;
|
||
|
|
|
||
|
|
if (field_type == PRINT_SYMBOL)
|
||
|
|
handler_name = "define_symbolic_value";
|
||
|
|
|
||
|
|
t = PyTuple_New(4);
|
||
|
|
if (!t)
|
||
|
|
Py_FatalError("couldn't create Python tuple");
|
||
|
|
|
||
|
|
value = eval_flag(field_value);
|
||
|
|
|
||
|
|
PyTuple_SetItem(t, n++, PyString_FromString(ev_name));
|
||
|
|
PyTuple_SetItem(t, n++, PyString_FromString(field_name));
|
||
|
|
PyTuple_SetItem(t, n++, PyInt_FromLong(value));
|
||
|
|
PyTuple_SetItem(t, n++, PyString_FromString(field_str));
|
||
|
|
|
||
|
|
handler = PyDict_GetItemString(main_dict, handler_name);
|
||
|
|
if (handler && PyCallable_Check(handler)) {
|
||
|
|
retval = PyObject_CallObject(handler, t);
|
||
|
|
if (retval == NULL)
|
||
|
|
handler_call_die(handler_name);
|
||
|
|
}
|
||
|
|
|
||
|
|
Py_DECREF(t);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void define_values(enum print_arg_type field_type,
|
||
|
|
struct print_flag_sym *field,
|
||
|
|
const char *ev_name,
|
||
|
|
const char *field_name)
|
||
|
|
{
|
||
|
|
define_value(field_type, ev_name, field_name, field->value,
|
||
|
|
field->str);
|
||
|
|
|
||
|
|
if (field->next)
|
||
|
|
define_values(field_type, field->next, ev_name, field_name);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void define_field(enum print_arg_type field_type,
|
||
|
|
const char *ev_name,
|
||
|
|
const char *field_name,
|
||
|
|
const char *delim)
|
||
|
|
{
|
||
|
|
const char *handler_name = "define_flag_field";
|
||
|
|
PyObject *handler, *t, *retval;
|
||
|
|
unsigned n = 0;
|
||
|
|
|
||
|
|
if (field_type == PRINT_SYMBOL)
|
||
|
|
handler_name = "define_symbolic_field";
|
||
|
|
|
||
|
|
if (field_type == PRINT_FLAGS)
|
||
|
|
t = PyTuple_New(3);
|
||
|
|
else
|
||
|
|
t = PyTuple_New(2);
|
||
|
|
if (!t)
|
||
|
|
Py_FatalError("couldn't create Python tuple");
|
||
|
|
|
||
|
|
PyTuple_SetItem(t, n++, PyString_FromString(ev_name));
|
||
|
|
PyTuple_SetItem(t, n++, PyString_FromString(field_name));
|
||
|
|
if (field_type == PRINT_FLAGS)
|
||
|
|
PyTuple_SetItem(t, n++, PyString_FromString(delim));
|
||
|
|
|
||
|
|
handler = PyDict_GetItemString(main_dict, handler_name);
|
||
|
|
if (handler && PyCallable_Check(handler)) {
|
||
|
|
retval = PyObject_CallObject(handler, t);
|
||
|
|
if (retval == NULL)
|
||
|
|
handler_call_die(handler_name);
|
||
|
|
}
|
||
|
|
|
||
|
|
Py_DECREF(t);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void define_event_symbols(struct event *event,
|
||
|
|
const char *ev_name,
|
||
|
|
struct print_arg *args)
|
||
|
|
{
|
||
|
|
switch (args->type) {
|
||
|
|
case PRINT_NULL:
|
||
|
|
break;
|
||
|
|
case PRINT_ATOM:
|
||
|
|
define_value(PRINT_FLAGS, ev_name, cur_field_name, "0",
|
||
|
|
args->atom.atom);
|
||
|
|
zero_flag_atom = 0;
|
||
|
|
break;
|
||
|
|
case PRINT_FIELD:
|
||
|
|
if (cur_field_name)
|
||
|
|
free(cur_field_name);
|
||
|
|
cur_field_name = strdup(args->field.name);
|
||
|
|
break;
|
||
|
|
case PRINT_FLAGS:
|
||
|
|
define_event_symbols(event, ev_name, args->flags.field);
|
||
|
|
define_field(PRINT_FLAGS, ev_name, cur_field_name,
|
||
|
|
args->flags.delim);
|
||
|
|
define_values(PRINT_FLAGS, args->flags.flags, ev_name,
|
||
|
|
cur_field_name);
|
||
|
|
break;
|
||
|
|
case PRINT_SYMBOL:
|
||
|
|
define_event_symbols(event, ev_name, args->symbol.field);
|
||
|
|
define_field(PRINT_SYMBOL, ev_name, cur_field_name, NULL);
|
||
|
|
define_values(PRINT_SYMBOL, args->symbol.symbols, ev_name,
|
||
|
|
cur_field_name);
|
||
|
|
break;
|
||
|
|
case PRINT_STRING:
|
||
|
|
break;
|
||
|
|
case PRINT_TYPE:
|
||
|
|
define_event_symbols(event, ev_name, args->typecast.item);
|
||
|
|
break;
|
||
|
|
case PRINT_OP:
|
||
|
|
if (strcmp(args->op.op, ":") == 0)
|
||
|
|
zero_flag_atom = 1;
|
||
|
|
define_event_symbols(event, ev_name, args->op.left);
|
||
|
|
define_event_symbols(event, ev_name, args->op.right);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
/* we should warn... */
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (args->next)
|
||
|
|
define_event_symbols(event, ev_name, args->next);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline struct event *find_cache_event(int type)
|
||
|
|
{
|
||
|
|
static char ev_name[256];
|
||
|
|
struct event *event;
|
||
|
|
|
||
|
|
if (events[type])
|
||
|
|
return events[type];
|
||
|
|
|
||
|
|
events[type] = event = trace_find_event(type);
|
||
|
|
if (!event)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
sprintf(ev_name, "%s__%s", event->system, event->name);
|
||
|
|
|
||
|
|
define_event_symbols(event, ev_name, event->print_fmt.args);
|
||
|
|
|
||
|
|
return event;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void python_process_event(union perf_event *pevent __unused,
|
||
|
|
struct perf_sample *sample,
|
||
|
|
struct perf_evsel *evsel __unused,
|
||
|
|
struct machine *machine __unused,
|
||
|
|
struct thread *thread)
|
||
|
|
{
|
||
|
|
PyObject *handler, *retval, *context, *t, *obj, *dict = NULL;
|
||
|
|
static char handler_name[256];
|
||
|
|
struct format_field *field;
|
||
|
|
unsigned long long val;
|
||
|
|
unsigned long s, ns;
|
||
|
|
struct event *event;
|
||
|
|
unsigned n = 0;
|
||
|
|
int type;
|
||
|
|
int pid;
|
||
|
|
int cpu = sample->cpu;
|
||
|
|
void *data = sample->raw_data;
|
||
|
|
unsigned long long nsecs = sample->time;
|
||
|
|
char *comm = thread->comm;
|
||
|
|
|
||
|
|
t = PyTuple_New(MAX_FIELDS);
|
||
|
|
if (!t)
|
||
|
|
Py_FatalError("couldn't create Python tuple");
|
||
|
|
|
||
|
|
type = trace_parse_common_type(data);
|
||
|
|
|
||
|
|
event = find_cache_event(type);
|
||
|
|
if (!event)
|
||
|
|
die("ug! no event found for type %d", type);
|
||
|
|
|
||
|
|
pid = trace_parse_common_pid(data);
|
||
|
|
|
||
|
|
sprintf(handler_name, "%s__%s", event->system, event->name);
|
||
|
|
|
||
|
|
handler = PyDict_GetItemString(main_dict, handler_name);
|
||
|
|
if (handler && !PyCallable_Check(handler))
|
||
|
|
handler = NULL;
|
||
|
|
if (!handler) {
|
||
|
|
dict = PyDict_New();
|
||
|
|
if (!dict)
|
||
|
|
Py_FatalError("couldn't create Python dict");
|
||
|
|
}
|
||
|
|
s = nsecs / NSECS_PER_SEC;
|
||
|
|
ns = nsecs - s * NSECS_PER_SEC;
|
||
|
|
|
||
|
|
scripting_context->event_data = data;
|
||
|
|
|
||
|
|
context = PyCObject_FromVoidPtr(scripting_context, NULL);
|
||
|
|
|
||
|
|
PyTuple_SetItem(t, n++, PyString_FromString(handler_name));
|
||
|
|
PyTuple_SetItem(t, n++, context);
|
||
|
|
|
||
|
|
if (handler) {
|
||
|
|
PyTuple_SetItem(t, n++, PyInt_FromLong(cpu));
|
||
|
|
PyTuple_SetItem(t, n++, PyInt_FromLong(s));
|
||
|
|
PyTuple_SetItem(t, n++, PyInt_FromLong(ns));
|
||
|
|
PyTuple_SetItem(t, n++, PyInt_FromLong(pid));
|
||
|
|
PyTuple_SetItem(t, n++, PyString_FromString(comm));
|
||
|
|
} else {
|
||
|
|
PyDict_SetItemString(dict, "common_cpu", PyInt_FromLong(cpu));
|
||
|
|
PyDict_SetItemString(dict, "common_s", PyInt_FromLong(s));
|
||
|
|
PyDict_SetItemString(dict, "common_ns", PyInt_FromLong(ns));
|
||
|
|
PyDict_SetItemString(dict, "common_pid", PyInt_FromLong(pid));
|
||
|
|
PyDict_SetItemString(dict, "common_comm", PyString_FromString(comm));
|
||
|
|
}
|
||
|
|
for (field = event->format.fields; field; field = field->next) {
|
||
|
|
if (field->flags & FIELD_IS_STRING) {
|
||
|
|
int offset;
|
||
|
|
if (field->flags & FIELD_IS_DYNAMIC) {
|
||
|
|
offset = *(int *)(data + field->offset);
|
||
|
|
offset &= 0xffff;
|
||
|
|
} else
|
||
|
|
offset = field->offset;
|
||
|
|
obj = PyString_FromString((char *)data + offset);
|
||
|
|
} else { /* FIELD_IS_NUMERIC */
|
||
|
|
val = read_size(data + field->offset, field->size);
|
||
|
|
if (field->flags & FIELD_IS_SIGNED) {
|
||
|
|
if ((long long)val >= LONG_MIN &&
|
||
|
|
(long long)val <= LONG_MAX)
|
||
|
|
obj = PyInt_FromLong(val);
|
||
|
|
else
|
||
|
|
obj = PyLong_FromLongLong(val);
|
||
|
|
} else {
|
||
|
|
if (val <= LONG_MAX)
|
||
|
|
obj = PyInt_FromLong(val);
|
||
|
|
else
|
||
|
|
obj = PyLong_FromUnsignedLongLong(val);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (handler)
|
||
|
|
PyTuple_SetItem(t, n++, obj);
|
||
|
|
else
|
||
|
|
PyDict_SetItemString(dict, field->name, obj);
|
||
|
|
|
||
|
|
}
|
||
|
|
if (!handler)
|
||
|
|
PyTuple_SetItem(t, n++, dict);
|
||
|
|
|
||
|
|
if (_PyTuple_Resize(&t, n) == -1)
|
||
|
|
Py_FatalError("error resizing Python tuple");
|
||
|
|
|
||
|
|
if (handler) {
|
||
|
|
retval = PyObject_CallObject(handler, t);
|
||
|
|
if (retval == NULL)
|
||
|
|
handler_call_die(handler_name);
|
||
|
|
} else {
|
||
|
|
handler = PyDict_GetItemString(main_dict, "trace_unhandled");
|
||
|
|
if (handler && PyCallable_Check(handler)) {
|
||
|
|
|
||
|
|
retval = PyObject_CallObject(handler, t);
|
||
|
|
if (retval == NULL)
|
||
|
|
handler_call_die("trace_unhandled");
|
||
|
|
}
|
||
|
|
Py_DECREF(dict);
|
||
|
|
}
|
||
|
|
|
||
|
|
Py_DECREF(t);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int run_start_sub(void)
|
||
|
|
{
|
||
|
|
PyObject *handler, *retval;
|
||
|
|
int err = 0;
|
||
|
|
|
||
|
|
main_module = PyImport_AddModule("__main__");
|
||
|
|
if (main_module == NULL)
|
||
|
|
return -1;
|
||
|
|
Py_INCREF(main_module);
|
||
|
|
|
||
|
|
main_dict = PyModule_GetDict(main_module);
|
||
|
|
if (main_dict == NULL) {
|
||
|
|
err = -1;
|
||
|
|
goto error;
|
||
|
|
}
|
||
|
|
Py_INCREF(main_dict);
|
||
|
|
|
||
|
|
handler = PyDict_GetItemString(main_dict, "trace_begin");
|
||
|
|
if (handler == NULL || !PyCallable_Check(handler))
|
||
|
|
goto out;
|
||
|
|
|
||
|
|
retval = PyObject_CallObject(handler, NULL);
|
||
|
|
if (retval == NULL)
|
||
|
|
handler_call_die("trace_begin");
|
||
|
|
|
||
|
|
Py_DECREF(retval);
|
||
|
|
return err;
|
||
|
|
error:
|
||
|
|
Py_XDECREF(main_dict);
|
||
|
|
Py_XDECREF(main_module);
|
||
|
|
out:
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Start trace script
|
||
|
|
*/
|
||
|
|
static int python_start_script(const char *script, int argc, const char **argv)
|
||
|
|
{
|
||
|
|
const char **command_line;
|
||
|
|
char buf[PATH_MAX];
|
||
|
|
int i, err = 0;
|
||
|
|
FILE *fp;
|
||
|
|
|
||
|
|
command_line = malloc((argc + 1) * sizeof(const char *));
|
||
|
|
command_line[0] = script;
|
||
|
|
for (i = 1; i < argc + 1; i++)
|
||
|
|
command_line[i] = argv[i - 1];
|
||
|
|
|
||
|
|
Py_Initialize();
|
||
|
|
|
||
|
|
initperf_trace_context();
|
||
|
|
|
||
|
|
PySys_SetArgv(argc + 1, (char **)command_line);
|
||
|
|
|
||
|
|
fp = fopen(script, "r");
|
||
|
|
if (!fp) {
|
||
|
|
sprintf(buf, "Can't open python script \"%s\"", script);
|
||
|
|
perror(buf);
|
||
|
|
err = -1;
|
||
|
|
goto error;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = PyRun_SimpleFile(fp, script);
|
||
|
|
if (err) {
|
||
|
|
fprintf(stderr, "Error running python script %s\n", script);
|
||
|
|
goto error;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = run_start_sub();
|
||
|
|
if (err) {
|
||
|
|
fprintf(stderr, "Error starting python script %s\n", script);
|
||
|
|
goto error;
|
||
|
|
}
|
||
|
|
|
||
|
|
free(command_line);
|
||
|
|
|
||
|
|
return err;
|
||
|
|
error:
|
||
|
|
Py_Finalize();
|
||
|
|
free(command_line);
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Stop trace script
|
||
|
|
*/
|
||
|
|
static int python_stop_script(void)
|
||
|
|
{
|
||
|
|
PyObject *handler, *retval;
|
||
|
|
int err = 0;
|
||
|
|
|
||
|
|
handler = PyDict_GetItemString(main_dict, "trace_end");
|
||
|
|
if (handler == NULL || !PyCallable_Check(handler))
|
||
|
|
goto out;
|
||
|
|
|
||
|
|
retval = PyObject_CallObject(handler, NULL);
|
||
|
|
if (retval == NULL)
|
||
|
|
handler_call_die("trace_end");
|
||
|
|
else
|
||
|
|
Py_DECREF(retval);
|
||
|
|
out:
|
||
|
|
Py_XDECREF(main_dict);
|
||
|
|
Py_XDECREF(main_module);
|
||
|
|
Py_Finalize();
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int python_generate_script(const char *outfile)
|
||
|
|
{
|
||
|
|
struct event *event = NULL;
|
||
|
|
struct format_field *f;
|
||
|
|
char fname[PATH_MAX];
|
||
|
|
int not_first, count;
|
||
|
|
FILE *ofp;
|
||
|
|
|
||
|
|
sprintf(fname, "%s.py", outfile);
|
||
|
|
ofp = fopen(fname, "w");
|
||
|
|
if (ofp == NULL) {
|
||
|
|
fprintf(stderr, "couldn't open %s\n", fname);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
fprintf(ofp, "# perf script event handlers, "
|
||
|
|
"generated by perf script -g python\n");
|
||
|
|
|
||
|
|
fprintf(ofp, "# Licensed under the terms of the GNU GPL"
|
||
|
|
" License version 2\n\n");
|
||
|
|
|
||
|
|
fprintf(ofp, "# The common_* event handler fields are the most useful "
|
||
|
|
"fields common to\n");
|
||
|
|
|
||
|
|
fprintf(ofp, "# all events. They don't necessarily correspond to "
|
||
|
|
"the 'common_*' fields\n");
|
||
|
|
|
||
|
|
fprintf(ofp, "# in the format files. Those fields not available as "
|
||
|
|
"handler params can\n");
|
||
|
|
|
||
|
|
fprintf(ofp, "# be retrieved using Python functions of the form "
|
||
|
|
"common_*(context).\n");
|
||
|
|
|
||
|
|
fprintf(ofp, "# See the perf-trace-python Documentation for the list "
|
||
|
|
"of available functions.\n\n");
|
||
|
|
|
||
|
|
fprintf(ofp, "import os\n");
|
||
|
|
fprintf(ofp, "import sys\n\n");
|
||
|
|
|
||
|
|
fprintf(ofp, "sys.path.append(os.environ['PERF_EXEC_PATH'] + \\\n");
|
||
|
|
fprintf(ofp, "\t'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')\n");
|
||
|
|
fprintf(ofp, "\nfrom perf_trace_context import *\n");
|
||
|
|
fprintf(ofp, "from Core import *\n\n\n");
|
||
|
|
|
||
|
|
fprintf(ofp, "def trace_begin():\n");
|
||
|
|
fprintf(ofp, "\tprint \"in trace_begin\"\n\n");
|
||
|
|
|
||
|
|
fprintf(ofp, "def trace_end():\n");
|
||
|
|
fprintf(ofp, "\tprint \"in trace_end\"\n\n");
|
||
|
|
|
||
|
|
while ((event = trace_find_next_event(event))) {
|
||
|
|
fprintf(ofp, "def %s__%s(", event->system, event->name);
|
||
|
|
fprintf(ofp, "event_name, ");
|
||
|
|
fprintf(ofp, "context, ");
|
||
|
|
fprintf(ofp, "common_cpu,\n");
|
||
|
|
fprintf(ofp, "\tcommon_secs, ");
|
||
|
|
fprintf(ofp, "common_nsecs, ");
|
||
|
|
fprintf(ofp, "common_pid, ");
|
||
|
|
fprintf(ofp, "common_comm,\n\t");
|
||
|
|
|
||
|
|
not_first = 0;
|
||
|
|
count = 0;
|
||
|
|
|
||
|
|
for (f = event->format.fields; f; f = f->next) {
|
||
|
|
if (not_first++)
|
||
|
|
fprintf(ofp, ", ");
|
||
|
|
if (++count % 5 == 0)
|
||
|
|
fprintf(ofp, "\n\t");
|
||
|
|
|
||
|
|
fprintf(ofp, "%s", f->name);
|
||
|
|
}
|
||
|
|
fprintf(ofp, "):\n");
|
||
|
|
|
||
|
|
fprintf(ofp, "\t\tprint_header(event_name, common_cpu, "
|
||
|
|
"common_secs, common_nsecs,\n\t\t\t"
|
||
|
|
"common_pid, common_comm)\n\n");
|
||
|
|
|
||
|
|
fprintf(ofp, "\t\tprint \"");
|
||
|
|
|
||
|
|
not_first = 0;
|
||
|
|
count = 0;
|
||
|
|
|
||
|
|
for (f = event->format.fields; f; f = f->next) {
|
||
|
|
if (not_first++)
|
||
|
|
fprintf(ofp, ", ");
|
||
|
|
if (count && count % 3 == 0) {
|
||
|
|
fprintf(ofp, "\" \\\n\t\t\"");
|
||
|
|
}
|
||
|
|
count++;
|
||
|
|
|
||
|
|
fprintf(ofp, "%s=", f->name);
|
||
|
|
if (f->flags & FIELD_IS_STRING ||
|
||
|
|
f->flags & FIELD_IS_FLAG ||
|
||
|
|
f->flags & FIELD_IS_SYMBOLIC)
|
||
|
|
fprintf(ofp, "%%s");
|
||
|
|
else if (f->flags & FIELD_IS_SIGNED)
|
||
|
|
fprintf(ofp, "%%d");
|
||
|
|
else
|
||
|
|
fprintf(ofp, "%%u");
|
||
|
|
}
|
||
|
|
|
||
|
|
fprintf(ofp, "\\n\" %% \\\n\t\t(");
|
||
|
|
|
||
|
|
not_first = 0;
|
||
|
|
count = 0;
|
||
|
|
|
||
|
|
for (f = event->format.fields; f; f = f->next) {
|
||
|
|
if (not_first++)
|
||
|
|
fprintf(ofp, ", ");
|
||
|
|
|
||
|
|
if (++count % 5 == 0)
|
||
|
|
fprintf(ofp, "\n\t\t");
|
||
|
|
|
||
|
|
if (f->flags & FIELD_IS_FLAG) {
|
||
|
|
if ((count - 1) % 5 != 0) {
|
||
|
|
fprintf(ofp, "\n\t\t");
|
||
|
|
count = 4;
|
||
|
|
}
|
||
|
|
fprintf(ofp, "flag_str(\"");
|
||
|
|
fprintf(ofp, "%s__%s\", ", event->system,
|
||
|
|
event->name);
|
||
|
|
fprintf(ofp, "\"%s\", %s)", f->name,
|
||
|
|
f->name);
|
||
|
|
} else if (f->flags & FIELD_IS_SYMBOLIC) {
|
||
|
|
if ((count - 1) % 5 != 0) {
|
||
|
|
fprintf(ofp, "\n\t\t");
|
||
|
|
count = 4;
|
||
|
|
}
|
||
|
|
fprintf(ofp, "symbol_str(\"");
|
||
|
|
fprintf(ofp, "%s__%s\", ", event->system,
|
||
|
|
event->name);
|
||
|
|
fprintf(ofp, "\"%s\", %s)", f->name,
|
||
|
|
f->name);
|
||
|
|
} else
|
||
|
|
fprintf(ofp, "%s", f->name);
|
||
|
|
}
|
||
|
|
|
||
|
|
fprintf(ofp, "),\n\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
fprintf(ofp, "def trace_unhandled(event_name, context, "
|
||
|
|
"event_fields_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, "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");
|
||
|
|
|
||
|
|
fclose(ofp);
|
||
|
|
|
||
|
|
fprintf(stderr, "generated Python script: %s\n", fname);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct scripting_ops python_scripting_ops = {
|
||
|
|
.name = "Python",
|
||
|
|
.start_script = python_start_script,
|
||
|
|
.stop_script = python_stop_script,
|
||
|
|
.process_event = python_process_event,
|
||
|
|
.generate_script = python_generate_script,
|
||
|
|
};
|