UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity
OpenCloudOS-Kernel/tools/perf/util/python.c

1359 lines
36 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0
#include <Python.h>
#include <structmember.h>
#include <inttypes.h>
#include <poll.h>
#include <linux/err.h>
#include "evlist.h"
#include "callchain.h"
#include "evsel.h"
#include "event.h"
#include "cpumap.h"
#include "print_binary.h"
#include "thread_map.h"
#if PY_MAJOR_VERSION < 3
#define _PyUnicode_FromString(arg) \
PyString_FromString(arg)
#define _PyUnicode_AsString(arg) \
PyString_AsString(arg)
#define _PyUnicode_FromFormat(...) \
PyString_FromFormat(__VA_ARGS__)
#define _PyLong_FromLong(arg) \
PyInt_FromLong(arg)
#else
#define _PyUnicode_FromString(arg) \
PyUnicode_FromString(arg)
#define _PyUnicode_FromFormat(...) \
PyUnicode_FromFormat(__VA_ARGS__)
#define _PyLong_FromLong(arg) \
PyLong_FromLong(arg)
#endif
#ifndef Py_TYPE
#define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
#endif
/*
* Provide these two so that we don't have to link against callchain.c and
* start dragging hist.c, etc.
*/
struct callchain_param callchain_param;
int parse_callchain_record(const char *arg __maybe_unused,
struct callchain_param *param __maybe_unused)
{
return 0;
}
/*
* Support debug printing even though util/debug.c is not linked. That means
* implementing 'verbose' and 'eprintf'.
*/
int verbose;
int eprintf(int level, int var, const char *fmt, ...)
{
va_list args;
int ret = 0;
if (var >= level) {
va_start(args, fmt);
ret = vfprintf(stderr, fmt, args);
va_end(args);
}
return ret;
}
/* Define PyVarObject_HEAD_INIT for python 2.5 */
#ifndef PyVarObject_HEAD_INIT
# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
#endif
#if PY_MAJOR_VERSION < 3
PyMODINIT_FUNC initperf(void);
#else
PyMODINIT_FUNC PyInit_perf(void);
#endif
#define member_def(type, member, ptype, help) \
{ #member, ptype, \
offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
0, help }
#define sample_member_def(name, member, ptype, help) \
{ #name, ptype, \
offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
0, help }
struct pyrf_event {
PyObject_HEAD
struct perf_evsel *evsel;
struct perf_sample sample;
union perf_event event;
};
#define sample_members \
sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
sample_member_def(sample_pid, pid, T_INT, "event pid"), \
sample_member_def(sample_tid, tid, T_INT, "event tid"), \
sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
static PyMemberDef pyrf_mmap_event__members[] = {
sample_members
member_def(perf_event_header, type, T_UINT, "event type"),
member_def(perf_event_header, misc, T_UINT, "event misc"),
member_def(mmap_event, pid, T_UINT, "event pid"),
member_def(mmap_event, tid, T_UINT, "event tid"),
member_def(mmap_event, start, T_ULONGLONG, "start of the map"),
member_def(mmap_event, len, T_ULONGLONG, "map length"),
member_def(mmap_event, pgoff, T_ULONGLONG, "page offset"),
member_def(mmap_event, filename, T_STRING_INPLACE, "backing store"),
{ .name = NULL, },
};
static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
{
PyObject *ret;
char *s;
if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRIx64 ", "
"length: %#" PRIx64 ", offset: %#" PRIx64 ", "
"filename: %s }",
pevent->event.mmap.pid, pevent->event.mmap.tid,
pevent->event.mmap.start, pevent->event.mmap.len,
pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
ret = PyErr_NoMemory();
} else {
ret = _PyUnicode_FromString(s);
free(s);
}
return ret;
}
static PyTypeObject pyrf_mmap_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.mmap_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_mmap_event__doc,
.tp_members = pyrf_mmap_event__members,
.tp_repr = (reprfunc)pyrf_mmap_event__repr,
};
static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
static PyMemberDef pyrf_task_event__members[] = {
sample_members
member_def(perf_event_header, type, T_UINT, "event type"),
member_def(fork_event, pid, T_UINT, "event pid"),
member_def(fork_event, ppid, T_UINT, "event ppid"),
member_def(fork_event, tid, T_UINT, "event tid"),
member_def(fork_event, ptid, T_UINT, "event ptid"),
member_def(fork_event, time, T_ULONGLONG, "timestamp"),
{ .name = NULL, },
};
static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
{
return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
"ptid: %u, time: %" PRIu64 "}",
pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
pevent->event.fork.pid,
pevent->event.fork.ppid,
pevent->event.fork.tid,
pevent->event.fork.ptid,
pevent->event.fork.time);
}
static PyTypeObject pyrf_task_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.task_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_task_event__doc,
.tp_members = pyrf_task_event__members,
.tp_repr = (reprfunc)pyrf_task_event__repr,
};
static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
static PyMemberDef pyrf_comm_event__members[] = {
sample_members
member_def(perf_event_header, type, T_UINT, "event type"),
member_def(comm_event, pid, T_UINT, "event pid"),
member_def(comm_event, tid, T_UINT, "event tid"),
member_def(comm_event, comm, T_STRING_INPLACE, "process name"),
{ .name = NULL, },
};
static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
{
return _PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
pevent->event.comm.pid,
pevent->event.comm.tid,
pevent->event.comm.comm);
}
static PyTypeObject pyrf_comm_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.comm_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_comm_event__doc,
.tp_members = pyrf_comm_event__members,
.tp_repr = (reprfunc)pyrf_comm_event__repr,
};
static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
static PyMemberDef pyrf_throttle_event__members[] = {
sample_members
member_def(perf_event_header, type, T_UINT, "event type"),
member_def(throttle_event, time, T_ULONGLONG, "timestamp"),
member_def(throttle_event, id, T_ULONGLONG, "event id"),
member_def(throttle_event, stream_id, T_ULONGLONG, "event stream id"),
{ .name = NULL, },
};
static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
{
struct throttle_event *te = (struct throttle_event *)(&pevent->event.header + 1);
return _PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRIu64 ", id: %" PRIu64
", stream_id: %" PRIu64 " }",
pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
te->time, te->id, te->stream_id);
}
static PyTypeObject pyrf_throttle_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.throttle_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_throttle_event__doc,
.tp_members = pyrf_throttle_event__members,
.tp_repr = (reprfunc)pyrf_throttle_event__repr,
};
static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
static PyMemberDef pyrf_lost_event__members[] = {
sample_members
member_def(lost_event, id, T_ULONGLONG, "event id"),
member_def(lost_event, lost, T_ULONGLONG, "number of lost events"),
{ .name = NULL, },
};
static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
{
PyObject *ret;
char *s;
if (asprintf(&s, "{ type: lost, id: %#" PRIx64 ", "
"lost: %#" PRIx64 " }",
pevent->event.lost.id, pevent->event.lost.lost) < 0) {
ret = PyErr_NoMemory();
} else {
ret = _PyUnicode_FromString(s);
free(s);
}
return ret;
}
static PyTypeObject pyrf_lost_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.lost_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_lost_event__doc,
.tp_members = pyrf_lost_event__members,
.tp_repr = (reprfunc)pyrf_lost_event__repr,
};
static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
static PyMemberDef pyrf_read_event__members[] = {
sample_members
member_def(read_event, pid, T_UINT, "event pid"),
member_def(read_event, tid, T_UINT, "event tid"),
{ .name = NULL, },
};
static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
{
return _PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }",
pevent->event.read.pid,
pevent->event.read.tid);
/*
* FIXME: return the array of read values,
* making this method useful ;-)
*/
}
static PyTypeObject pyrf_read_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.read_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_read_event__doc,
.tp_members = pyrf_read_event__members,
.tp_repr = (reprfunc)pyrf_read_event__repr,
};
static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
static PyMemberDef pyrf_sample_event__members[] = {
sample_members
member_def(perf_event_header, type, T_UINT, "event type"),
{ .name = NULL, },
};
static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
{
PyObject *ret;
char *s;
if (asprintf(&s, "{ type: sample }") < 0) {
ret = PyErr_NoMemory();
} else {
ret = _PyUnicode_FromString(s);
free(s);
}
return ret;
}
static bool is_tracepoint(struct pyrf_event *pevent)
{
return pevent->evsel->attr.type == PERF_TYPE_TRACEPOINT;
}
static PyObject*
tracepoint_field(struct pyrf_event *pe, struct format_field *field)
{
struct pevent *pevent = field->event->pevent;
void *data = pe->sample.raw_data;
PyObject *ret = NULL;
unsigned long long val;
unsigned int offset, len;
if (field->flags & FIELD_IS_ARRAY) {
offset = field->offset;
len = field->size;
if (field->flags & FIELD_IS_DYNAMIC) {
val = pevent_read_number(pevent, data + offset, len);
offset = val;
len = offset >> 16;
offset &= 0xffff;
}
if (field->flags & FIELD_IS_STRING &&
is_printable_array(data + offset, len)) {
ret = _PyUnicode_FromString((char *)data + offset);
} else {
ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
field->flags &= ~FIELD_IS_STRING;
}
} else {
val = pevent_read_number(pevent, data + field->offset,
field->size);
if (field->flags & FIELD_IS_POINTER)
ret = PyLong_FromUnsignedLong((unsigned long) val);
else if (field->flags & FIELD_IS_SIGNED)
ret = PyLong_FromLong((long) val);
else
ret = PyLong_FromUnsignedLong((unsigned long) val);
}
return ret;
}
static PyObject*
get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
{
const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
struct perf_evsel *evsel = pevent->evsel;
struct format_field *field;
if (!evsel->tp_format) {
struct event_format *tp_format;
tp_format = trace_event__tp_format_id(evsel->attr.config);
if (!tp_format)
return NULL;
evsel->tp_format = tp_format;
}
field = pevent_find_any_field(evsel->tp_format, str);
if (!field)
return NULL;
return tracepoint_field(pevent, field);
}
static PyObject*
pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
{
PyObject *obj = NULL;
if (is_tracepoint(pevent))
obj = get_tracepoint_field(pevent, attr_name);
return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
}
static PyTypeObject pyrf_sample_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.sample_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_sample_event__doc,
.tp_members = pyrf_sample_event__members,
.tp_repr = (reprfunc)pyrf_sample_event__repr,
.tp_getattro = (getattrofunc) pyrf_sample_event__getattro,
};
static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
static PyMemberDef pyrf_context_switch_event__members[] = {
sample_members
member_def(perf_event_header, type, T_UINT, "event type"),
member_def(context_switch_event, next_prev_pid, T_UINT, "next/prev pid"),
member_def(context_switch_event, next_prev_tid, T_UINT, "next/prev tid"),
{ .name = NULL, },
};
static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
{
PyObject *ret;
char *s;
if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
pevent->event.context_switch.next_prev_pid,
pevent->event.context_switch.next_prev_tid,
!!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
ret = PyErr_NoMemory();
} else {
ret = _PyUnicode_FromString(s);
free(s);
}
return ret;
}
static PyTypeObject pyrf_context_switch_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.context_switch_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_context_switch_event__doc,
.tp_members = pyrf_context_switch_event__members,
.tp_repr = (reprfunc)pyrf_context_switch_event__repr,
};
static int pyrf_event__setup_types(void)
{
int err;
pyrf_mmap_event__type.tp_new =
pyrf_task_event__type.tp_new =
pyrf_comm_event__type.tp_new =
pyrf_lost_event__type.tp_new =
pyrf_read_event__type.tp_new =
pyrf_sample_event__type.tp_new =
pyrf_context_switch_event__type.tp_new =
pyrf_throttle_event__type.tp_new = PyType_GenericNew;
err = PyType_Ready(&pyrf_mmap_event__type);
if (err < 0)
goto out;
err = PyType_Ready(&pyrf_lost_event__type);
if (err < 0)
goto out;
err = PyType_Ready(&pyrf_task_event__type);
if (err < 0)
goto out;
err = PyType_Ready(&pyrf_comm_event__type);
if (err < 0)
goto out;
err = PyType_Ready(&pyrf_throttle_event__type);
if (err < 0)
goto out;
err = PyType_Ready(&pyrf_read_event__type);
if (err < 0)
goto out;
err = PyType_Ready(&pyrf_sample_event__type);
if (err < 0)
goto out;
err = PyType_Ready(&pyrf_context_switch_event__type);
if (err < 0)
goto out;
out:
return err;
}
static PyTypeObject *pyrf_event__type[] = {
[PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
[PERF_RECORD_LOST] = &pyrf_lost_event__type,
[PERF_RECORD_COMM] = &pyrf_comm_event__type,
[PERF_RECORD_EXIT] = &pyrf_task_event__type,
[PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
[PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
[PERF_RECORD_FORK] = &pyrf_task_event__type,
[PERF_RECORD_READ] = &pyrf_read_event__type,
[PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
[PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type,
[PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type,
};
static PyObject *pyrf_event__new(union perf_event *event)
{
struct pyrf_event *pevent;
PyTypeObject *ptype;
if ((event->header.type < PERF_RECORD_MMAP ||
event->header.type > PERF_RECORD_SAMPLE) &&
!(event->header.type == PERF_RECORD_SWITCH ||
event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))
return NULL;
ptype = pyrf_event__type[event->header.type];
pevent = PyObject_New(struct pyrf_event, ptype);
if (pevent != NULL)
memcpy(&pevent->event, event, event->header.size);
return (PyObject *)pevent;
}
struct pyrf_cpu_map {
PyObject_HEAD
struct cpu_map *cpus;
};
static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "cpustr", NULL };
char *cpustr = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
kwlist, &cpustr))
return -1;
pcpus->cpus = cpu_map__new(cpustr);
if (pcpus->cpus == NULL)
return -1;
return 0;
}
static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
{
cpu_map__put(pcpus->cpus);
Py_TYPE(pcpus)->tp_free((PyObject*)pcpus);
}
static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
{
struct pyrf_cpu_map *pcpus = (void *)obj;
return pcpus->cpus->nr;
}
static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
{
struct pyrf_cpu_map *pcpus = (void *)obj;
if (i >= pcpus->cpus->nr)
return NULL;
return Py_BuildValue("i", pcpus->cpus->map[i]);
}
static PySequenceMethods pyrf_cpu_map__sequence_methods = {
.sq_length = pyrf_cpu_map__length,
.sq_item = pyrf_cpu_map__item,
};
static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
static PyTypeObject pyrf_cpu_map__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.cpu_map",
.tp_basicsize = sizeof(struct pyrf_cpu_map),
.tp_dealloc = (destructor)pyrf_cpu_map__delete,
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_cpu_map__doc,
.tp_as_sequence = &pyrf_cpu_map__sequence_methods,
.tp_init = (initproc)pyrf_cpu_map__init,
};
static int pyrf_cpu_map__setup_types(void)
{
pyrf_cpu_map__type.tp_new = PyType_GenericNew;
return PyType_Ready(&pyrf_cpu_map__type);
}
struct pyrf_thread_map {
PyObject_HEAD
struct thread_map *threads;
};
static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "pid", "tid", "uid", NULL };
int pid = -1, tid = -1, uid = UINT_MAX;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
kwlist, &pid, &tid, &uid))
return -1;
pthreads->threads = thread_map__new(pid, tid, uid);
if (pthreads->threads == NULL)
return -1;
return 0;
}
static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
{
thread_map__put(pthreads->threads);
Py_TYPE(pthreads)->tp_free((PyObject*)pthreads);
}
static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
{
struct pyrf_thread_map *pthreads = (void *)obj;
return pthreads->threads->nr;
}
static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
{
struct pyrf_thread_map *pthreads = (void *)obj;
if (i >= pthreads->threads->nr)
return NULL;
return Py_BuildValue("i", pthreads->threads->map[i]);
}
static PySequenceMethods pyrf_thread_map__sequence_methods = {
.sq_length = pyrf_thread_map__length,
.sq_item = pyrf_thread_map__item,
};
static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
static PyTypeObject pyrf_thread_map__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.thread_map",
.tp_basicsize = sizeof(struct pyrf_thread_map),
.tp_dealloc = (destructor)pyrf_thread_map__delete,
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_thread_map__doc,
.tp_as_sequence = &pyrf_thread_map__sequence_methods,
.tp_init = (initproc)pyrf_thread_map__init,
};
static int pyrf_thread_map__setup_types(void)
{
pyrf_thread_map__type.tp_new = PyType_GenericNew;
return PyType_Ready(&pyrf_thread_map__type);
}
struct pyrf_evsel {
PyObject_HEAD
struct perf_evsel evsel;
};
static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
PyObject *args, PyObject *kwargs)
{
struct perf_event_attr attr = {
.type = PERF_TYPE_HARDWARE,
.config = PERF_COUNT_HW_CPU_CYCLES,
.sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
};
static char *kwlist[] = {
"type",
"config",
"sample_freq",
"sample_period",
"sample_type",
"read_format",
"disabled",
"inherit",
"pinned",
"exclusive",
"exclude_user",
"exclude_kernel",
"exclude_hv",
"exclude_idle",
"mmap",
"context_switch",
"comm",
"freq",
"inherit_stat",
"enable_on_exec",
"task",
"watermark",
"precise_ip",
"mmap_data",
"sample_id_all",
"wakeup_events",
"bp_type",
"bp_addr",
"bp_len",
NULL
};
u64 sample_period = 0;
u32 disabled = 0,
inherit = 0,
pinned = 0,
exclusive = 0,
exclude_user = 0,
exclude_kernel = 0,
exclude_hv = 0,
exclude_idle = 0,
mmap = 0,
context_switch = 0,
comm = 0,
freq = 1,
inherit_stat = 0,
enable_on_exec = 0,
task = 0,
watermark = 0,
precise_ip = 0,
mmap_data = 0,
sample_id_all = 1;
int idx = 0;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
&attr.type, &attr.config, &attr.sample_freq,
&sample_period, &attr.sample_type,
&attr.read_format, &disabled, &inherit,
&pinned, &exclusive, &exclude_user,
&exclude_kernel, &exclude_hv, &exclude_idle,
&mmap, &context_switch, &comm, &freq, &inherit_stat,
&enable_on_exec, &task, &watermark,
&precise_ip, &mmap_data, &sample_id_all,
&attr.wakeup_events, &attr.bp_type,
&attr.bp_addr, &attr.bp_len, &idx))
return -1;
/* union... */
if (sample_period != 0) {
if (attr.sample_freq != 0)
return -1; /* FIXME: throw right exception */
attr.sample_period = sample_period;
}
/* Bitfields */
attr.disabled = disabled;
attr.inherit = inherit;
attr.pinned = pinned;
attr.exclusive = exclusive;
attr.exclude_user = exclude_user;
attr.exclude_kernel = exclude_kernel;
attr.exclude_hv = exclude_hv;
attr.exclude_idle = exclude_idle;
attr.mmap = mmap;
attr.context_switch = context_switch;
attr.comm = comm;
attr.freq = freq;
attr.inherit_stat = inherit_stat;
attr.enable_on_exec = enable_on_exec;
attr.task = task;
attr.watermark = watermark;
attr.precise_ip = precise_ip;
attr.mmap_data = mmap_data;
attr.sample_id_all = sample_id_all;
attr.size = sizeof(attr);
perf_evsel__init(&pevsel->evsel, &attr, idx);
return 0;
}
static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
{
perf_evsel__exit(&pevsel->evsel);
Py_TYPE(pevsel)->tp_free((PyObject*)pevsel);
}
static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
PyObject *args, PyObject *kwargs)
{
struct perf_evsel *evsel = &pevsel->evsel;
struct cpu_map *cpus = NULL;
struct thread_map *threads = NULL;
PyObject *pcpus = NULL, *pthreads = NULL;
int group = 0, inherit = 0;
static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
&pcpus, &pthreads, &group, &inherit))
return NULL;
if (pthreads != NULL)
threads = ((struct pyrf_thread_map *)pthreads)->threads;
if (pcpus != NULL)
cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
evsel->attr.inherit = inherit;
/*
* This will group just the fds for this single evsel, to group
* multiple events, use evlist.open().
*/
if (perf_evsel__open(evsel, cpus, threads) < 0) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
Py_INCREF(Py_None);
return Py_None;
}
static PyMethodDef pyrf_evsel__methods[] = {
{
.ml_name = "open",
.ml_meth = (PyCFunction)pyrf_evsel__open,
.ml_flags = METH_VARARGS | METH_KEYWORDS,
.ml_doc = PyDoc_STR("open the event selector file descriptor table.")
},
{ .ml_name = NULL, }
};
static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
static PyTypeObject pyrf_evsel__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.evsel",
.tp_basicsize = sizeof(struct pyrf_evsel),
.tp_dealloc = (destructor)pyrf_evsel__delete,
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_evsel__doc,
.tp_methods = pyrf_evsel__methods,
.tp_init = (initproc)pyrf_evsel__init,
};
static int pyrf_evsel__setup_types(void)
{
pyrf_evsel__type.tp_new = PyType_GenericNew;
return PyType_Ready(&pyrf_evsel__type);
}
struct pyrf_evlist {
PyObject_HEAD
struct perf_evlist evlist;
};
static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
PyObject *args, PyObject *kwargs __maybe_unused)
{
PyObject *pcpus = NULL, *pthreads = NULL;
struct cpu_map *cpus;
struct thread_map *threads;
if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
return -1;
threads = ((struct pyrf_thread_map *)pthreads)->threads;
cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
perf_evlist__init(&pevlist->evlist, cpus, threads);
return 0;
}
static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
{
perf_evlist__exit(&pevlist->evlist);
Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
}
static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
PyObject *args, PyObject *kwargs)
{
struct perf_evlist *evlist = &pevlist->evlist;
static char *kwlist[] = { "pages", "overwrite", NULL };
int pages = 128, overwrite = false;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
&pages, &overwrite))
return NULL;
if (perf_evlist__mmap(evlist, pages) < 0) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
PyObject *args, PyObject *kwargs)
{
struct perf_evlist *evlist = &pevlist->evlist;
static char *kwlist[] = { "timeout", NULL };
int timeout = -1, n;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
return NULL;
n = perf_evlist__poll(evlist, timeout);
if (n < 0) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
return Py_BuildValue("i", n);
}
static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
PyObject *args __maybe_unused,
PyObject *kwargs __maybe_unused)
{
struct perf_evlist *evlist = &pevlist->evlist;
PyObject *list = PyList_New(0);
int i;
for (i = 0; i < evlist->pollfd.nr; ++i) {
PyObject *file;
#if PY_MAJOR_VERSION < 3
FILE *fp = fdopen(evlist->pollfd.entries[i].fd, "r");
if (fp == NULL)
goto free_list;
file = PyFile_FromFile(fp, "perf", "r", NULL);
#else
file = PyFile_FromFd(evlist->pollfd.entries[i].fd, "perf", "r", -1, NULL, NULL, NULL, 1);
#endif
if (file == NULL)
goto free_list;
if (PyList_Append(list, file) != 0) {
Py_DECREF(file);
goto free_list;
}
Py_DECREF(file);
}
return list;
free_list:
return PyErr_NoMemory();
}
static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
PyObject *args,
PyObject *kwargs __maybe_unused)
{
struct perf_evlist *evlist = &pevlist->evlist;
PyObject *pevsel;
struct perf_evsel *evsel;
if (!PyArg_ParseTuple(args, "O", &pevsel))
return NULL;
Py_INCREF(pevsel);
evsel = &((struct pyrf_evsel *)pevsel)->evsel;
evsel->idx = evlist->nr_entries;
perf_evlist__add(evlist, evsel);
return Py_BuildValue("i", evlist->nr_entries);
}
static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
PyObject *args, PyObject *kwargs)
{
struct perf_evlist *evlist = &pevlist->evlist;
union perf_event *event;
int sample_id_all = 1, cpu;
static char *kwlist[] = { "cpu", "sample_id_all", NULL };
struct perf_mmap *md;
int err;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
&cpu, &sample_id_all))
return NULL;
md = &evlist->mmap[cpu];
if (perf_mmap__read_init(md) < 0)
goto end;
event = perf_mmap__read_event(md);
if (event != NULL) {
PyObject *pyevent = pyrf_event__new(event);
struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
struct perf_evsel *evsel;
if (pyevent == NULL)
return PyErr_NoMemory();
evsel = perf_evlist__event2evsel(evlist, event);
if (!evsel) {
Py_INCREF(Py_None);
return Py_None;
}
pevent->evsel = evsel;
err = perf_evsel__parse_sample(evsel, event, &pevent->sample);
/* Consume the even only after we parsed it out. */
perf_mmap__consume(md);
if (err)
return PyErr_Format(PyExc_OSError,
"perf: can't parse sample, err=%d", err);
return pyevent;
}
end:
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
PyObject *args, PyObject *kwargs)
{
struct perf_evlist *evlist = &pevlist->evlist;
int group = 0;
static char *kwlist[] = { "group", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
return NULL;
if (group)
perf_evlist__set_leader(evlist);
if (perf_evlist__open(evlist) < 0) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
Py_INCREF(Py_None);
return Py_None;
}
static PyMethodDef pyrf_evlist__methods[] = {
{
.ml_name = "mmap",
.ml_meth = (PyCFunction)pyrf_evlist__mmap,
.ml_flags = METH_VARARGS | METH_KEYWORDS,
.ml_doc = PyDoc_STR("mmap the file descriptor table.")
},
{
.ml_name = "open",
.ml_meth = (PyCFunction)pyrf_evlist__open,
.ml_flags = METH_VARARGS | METH_KEYWORDS,
.ml_doc = PyDoc_STR("open the file descriptors.")
},
{
.ml_name = "poll",
.ml_meth = (PyCFunction)pyrf_evlist__poll,
.ml_flags = METH_VARARGS | METH_KEYWORDS,
.ml_doc = PyDoc_STR("poll the file descriptor table.")
},
{
.ml_name = "get_pollfd",
.ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
.ml_flags = METH_VARARGS | METH_KEYWORDS,
.ml_doc = PyDoc_STR("get the poll file descriptor table.")
},
{
.ml_name = "add",
.ml_meth = (PyCFunction)pyrf_evlist__add,
.ml_flags = METH_VARARGS | METH_KEYWORDS,
.ml_doc = PyDoc_STR("adds an event selector to the list.")
},
{
.ml_name = "read_on_cpu",
.ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
.ml_flags = METH_VARARGS | METH_KEYWORDS,
.ml_doc = PyDoc_STR("reads an event.")
},
{ .ml_name = NULL, }
};
static Py_ssize_t pyrf_evlist__length(PyObject *obj)
{
struct pyrf_evlist *pevlist = (void *)obj;
return pevlist->evlist.nr_entries;
}
static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
{
struct pyrf_evlist *pevlist = (void *)obj;
struct perf_evsel *pos;
if (i >= pevlist->evlist.nr_entries)
return NULL;
evlist__for_each_entry(&pevlist->evlist, pos) {
if (i-- == 0)
break;
}
return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
}
static PySequenceMethods pyrf_evlist__sequence_methods = {
.sq_length = pyrf_evlist__length,
.sq_item = pyrf_evlist__item,
};
static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
static PyTypeObject pyrf_evlist__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.evlist",
.tp_basicsize = sizeof(struct pyrf_evlist),
.tp_dealloc = (destructor)pyrf_evlist__delete,
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_as_sequence = &pyrf_evlist__sequence_methods,
.tp_doc = pyrf_evlist__doc,
.tp_methods = pyrf_evlist__methods,
.tp_init = (initproc)pyrf_evlist__init,
};
static int pyrf_evlist__setup_types(void)
{
pyrf_evlist__type.tp_new = PyType_GenericNew;
return PyType_Ready(&pyrf_evlist__type);
}
#define PERF_CONST(name) { #name, PERF_##name }
static struct {
const char *name;
int value;
} perf__constants[] = {
PERF_CONST(TYPE_HARDWARE),
PERF_CONST(TYPE_SOFTWARE),
PERF_CONST(TYPE_TRACEPOINT),
PERF_CONST(TYPE_HW_CACHE),
PERF_CONST(TYPE_RAW),
PERF_CONST(TYPE_BREAKPOINT),
PERF_CONST(COUNT_HW_CPU_CYCLES),
PERF_CONST(COUNT_HW_INSTRUCTIONS),
PERF_CONST(COUNT_HW_CACHE_REFERENCES),
PERF_CONST(COUNT_HW_CACHE_MISSES),
PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
PERF_CONST(COUNT_HW_BRANCH_MISSES),
PERF_CONST(COUNT_HW_BUS_CYCLES),
PERF_CONST(COUNT_HW_CACHE_L1D),
PERF_CONST(COUNT_HW_CACHE_L1I),
PERF_CONST(COUNT_HW_CACHE_LL),
PERF_CONST(COUNT_HW_CACHE_DTLB),
PERF_CONST(COUNT_HW_CACHE_ITLB),
PERF_CONST(COUNT_HW_CACHE_BPU),
PERF_CONST(COUNT_HW_CACHE_OP_READ),
PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
PERF_CONST(COUNT_SW_CPU_CLOCK),
PERF_CONST(COUNT_SW_TASK_CLOCK),
PERF_CONST(COUNT_SW_PAGE_FAULTS),
PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
PERF_CONST(COUNT_SW_EMULATION_FAULTS),
PERF_CONST(COUNT_SW_DUMMY),
PERF_CONST(SAMPLE_IP),
PERF_CONST(SAMPLE_TID),
PERF_CONST(SAMPLE_TIME),
PERF_CONST(SAMPLE_ADDR),
PERF_CONST(SAMPLE_READ),
PERF_CONST(SAMPLE_CALLCHAIN),
PERF_CONST(SAMPLE_ID),
PERF_CONST(SAMPLE_CPU),
PERF_CONST(SAMPLE_PERIOD),
PERF_CONST(SAMPLE_STREAM_ID),
PERF_CONST(SAMPLE_RAW),
PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
PERF_CONST(FORMAT_ID),
PERF_CONST(FORMAT_GROUP),
PERF_CONST(RECORD_MMAP),
PERF_CONST(RECORD_LOST),
PERF_CONST(RECORD_COMM),
PERF_CONST(RECORD_EXIT),
PERF_CONST(RECORD_THROTTLE),
PERF_CONST(RECORD_UNTHROTTLE),
PERF_CONST(RECORD_FORK),
PERF_CONST(RECORD_READ),
PERF_CONST(RECORD_SAMPLE),
PERF_CONST(RECORD_MMAP2),
PERF_CONST(RECORD_AUX),
PERF_CONST(RECORD_ITRACE_START),
PERF_CONST(RECORD_LOST_SAMPLES),
PERF_CONST(RECORD_SWITCH),
PERF_CONST(RECORD_SWITCH_CPU_WIDE),
PERF_CONST(RECORD_MISC_SWITCH_OUT),
{ .name = NULL, },
};
static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
PyObject *args, PyObject *kwargs)
{
struct event_format *tp_format;
static char *kwlist[] = { "sys", "name", NULL };
char *sys = NULL;
char *name = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
&sys, &name))
return NULL;
tp_format = trace_event__tp_format(sys, name);
if (IS_ERR(tp_format))
return _PyLong_FromLong(-1);
return _PyLong_FromLong(tp_format->id);
}
static PyMethodDef perf__methods[] = {
{
.ml_name = "tracepoint",
.ml_meth = (PyCFunction) pyrf__tracepoint,
.ml_flags = METH_VARARGS | METH_KEYWORDS,
.ml_doc = PyDoc_STR("Get tracepoint config.")
},
{ .ml_name = NULL, }
};
#if PY_MAJOR_VERSION < 3
PyMODINIT_FUNC initperf(void)
#else
PyMODINIT_FUNC PyInit_perf(void)
#endif
{
PyObject *obj;
int i;
PyObject *dict;
#if PY_MAJOR_VERSION < 3
PyObject *module = Py_InitModule("perf", perf__methods);
#else
static struct PyModuleDef moduledef = {
PyModuleDef_HEAD_INIT,
"perf", /* m_name */
"", /* m_doc */
-1, /* m_size */
perf__methods, /* m_methods */
NULL, /* m_reload */
NULL, /* m_traverse */
NULL, /* m_clear */
NULL, /* m_free */
};
PyObject *module = PyModule_Create(&moduledef);
#endif
if (module == NULL ||
pyrf_event__setup_types() < 0 ||
pyrf_evlist__setup_types() < 0 ||
pyrf_evsel__setup_types() < 0 ||
pyrf_thread_map__setup_types() < 0 ||
pyrf_cpu_map__setup_types() < 0)
#if PY_MAJOR_VERSION < 3
return;
#else
return module;
#endif
/* The page_size is placed in util object. */
page_size = sysconf(_SC_PAGE_SIZE);
Py_INCREF(&pyrf_evlist__type);
PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
Py_INCREF(&pyrf_evsel__type);
PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
Py_INCREF(&pyrf_mmap_event__type);
PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
Py_INCREF(&pyrf_lost_event__type);
PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
Py_INCREF(&pyrf_comm_event__type);
PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
Py_INCREF(&pyrf_task_event__type);
PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
Py_INCREF(&pyrf_throttle_event__type);
PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
Py_INCREF(&pyrf_task_event__type);
PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
Py_INCREF(&pyrf_read_event__type);
PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
Py_INCREF(&pyrf_sample_event__type);
PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
Py_INCREF(&pyrf_context_switch_event__type);
PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);
Py_INCREF(&pyrf_thread_map__type);
PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
Py_INCREF(&pyrf_cpu_map__type);
PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
dict = PyModule_GetDict(module);
if (dict == NULL)
goto error;
for (i = 0; perf__constants[i].name != NULL; i++) {
obj = _PyLong_FromLong(perf__constants[i].value);
if (obj == NULL)
goto error;
PyDict_SetItemString(dict, perf__constants[i].name, obj);
Py_DECREF(obj);
}
error:
if (PyErr_Occurred())
PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
#if PY_MAJOR_VERSION >= 3
return module;
#endif
}
/*
* Dummy, to avoid dragging all the test_attr infrastructure in the python
* binding.
*/
void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
int fd, int group_fd, unsigned long flags)
{
}
Reference in New Issue View Git Blame Copy Permalink