1045 lines
29 KiB
C
1045 lines
29 KiB
C
#include <Python.h>
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#include <structmember.h>
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#include <inttypes.h>
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#include <poll.h>
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#include "evlist.h"
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#include "evsel.h"
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#include "event.h"
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#include "cpumap.h"
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#include "thread_map.h"
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/* Define PyVarObject_HEAD_INIT for python 2.5 */
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#ifndef PyVarObject_HEAD_INIT
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# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
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#endif
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struct throttle_event {
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struct perf_event_header header;
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u64 time;
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u64 id;
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u64 stream_id;
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};
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PyMODINIT_FUNC initperf(void);
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#define member_def(type, member, ptype, help) \
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{ #member, ptype, \
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offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
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0, help }
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#define sample_member_def(name, member, ptype, help) \
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{ #name, ptype, \
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offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
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0, help }
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struct pyrf_event {
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PyObject_HEAD
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struct perf_sample sample;
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union perf_event event;
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};
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#define sample_members \
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sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
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sample_member_def(sample_pid, pid, T_INT, "event pid"), \
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sample_member_def(sample_tid, tid, T_INT, "event tid"), \
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sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
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sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
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sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
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sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
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sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
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sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
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static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
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static PyMemberDef pyrf_mmap_event__members[] = {
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sample_members
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member_def(perf_event_header, type, T_UINT, "event type"),
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member_def(mmap_event, pid, T_UINT, "event pid"),
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member_def(mmap_event, tid, T_UINT, "event tid"),
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member_def(mmap_event, start, T_ULONGLONG, "start of the map"),
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member_def(mmap_event, len, T_ULONGLONG, "map length"),
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member_def(mmap_event, pgoff, T_ULONGLONG, "page offset"),
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member_def(mmap_event, filename, T_STRING_INPLACE, "backing store"),
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{ .name = NULL, },
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};
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static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
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{
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PyObject *ret;
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char *s;
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if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRIx64 ", "
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"length: %#" PRIx64 ", offset: %#" PRIx64 ", "
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"filename: %s }",
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pevent->event.mmap.pid, pevent->event.mmap.tid,
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pevent->event.mmap.start, pevent->event.mmap.len,
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pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
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ret = PyErr_NoMemory();
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} else {
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ret = PyString_FromString(s);
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free(s);
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}
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return ret;
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}
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static PyTypeObject pyrf_mmap_event__type = {
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PyVarObject_HEAD_INIT(NULL, 0)
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.tp_name = "perf.mmap_event",
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.tp_basicsize = sizeof(struct pyrf_event),
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.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
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.tp_doc = pyrf_mmap_event__doc,
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.tp_members = pyrf_mmap_event__members,
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.tp_repr = (reprfunc)pyrf_mmap_event__repr,
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};
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static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
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static PyMemberDef pyrf_task_event__members[] = {
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sample_members
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member_def(perf_event_header, type, T_UINT, "event type"),
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member_def(fork_event, pid, T_UINT, "event pid"),
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member_def(fork_event, ppid, T_UINT, "event ppid"),
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member_def(fork_event, tid, T_UINT, "event tid"),
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member_def(fork_event, ptid, T_UINT, "event ptid"),
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member_def(fork_event, time, T_ULONGLONG, "timestamp"),
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{ .name = NULL, },
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};
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static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
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{
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return PyString_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
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"ptid: %u, time: %" PRIu64 "}",
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pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
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pevent->event.fork.pid,
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pevent->event.fork.ppid,
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pevent->event.fork.tid,
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pevent->event.fork.ptid,
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pevent->event.fork.time);
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}
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static PyTypeObject pyrf_task_event__type = {
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PyVarObject_HEAD_INIT(NULL, 0)
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.tp_name = "perf.task_event",
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.tp_basicsize = sizeof(struct pyrf_event),
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.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
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.tp_doc = pyrf_task_event__doc,
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.tp_members = pyrf_task_event__members,
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.tp_repr = (reprfunc)pyrf_task_event__repr,
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};
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static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
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static PyMemberDef pyrf_comm_event__members[] = {
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sample_members
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member_def(perf_event_header, type, T_UINT, "event type"),
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member_def(comm_event, pid, T_UINT, "event pid"),
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member_def(comm_event, tid, T_UINT, "event tid"),
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member_def(comm_event, comm, T_STRING_INPLACE, "process name"),
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{ .name = NULL, },
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};
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static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
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{
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return PyString_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
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pevent->event.comm.pid,
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pevent->event.comm.tid,
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pevent->event.comm.comm);
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}
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static PyTypeObject pyrf_comm_event__type = {
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PyVarObject_HEAD_INIT(NULL, 0)
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.tp_name = "perf.comm_event",
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.tp_basicsize = sizeof(struct pyrf_event),
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.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
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.tp_doc = pyrf_comm_event__doc,
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.tp_members = pyrf_comm_event__members,
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.tp_repr = (reprfunc)pyrf_comm_event__repr,
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};
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static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
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static PyMemberDef pyrf_throttle_event__members[] = {
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sample_members
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member_def(perf_event_header, type, T_UINT, "event type"),
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member_def(throttle_event, time, T_ULONGLONG, "timestamp"),
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member_def(throttle_event, id, T_ULONGLONG, "event id"),
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member_def(throttle_event, stream_id, T_ULONGLONG, "event stream id"),
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{ .name = NULL, },
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};
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static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
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{
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struct throttle_event *te = (struct throttle_event *)(&pevent->event.header + 1);
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return PyString_FromFormat("{ type: %sthrottle, time: %" PRIu64 ", id: %" PRIu64
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", stream_id: %" PRIu64 " }",
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pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
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te->time, te->id, te->stream_id);
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}
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static PyTypeObject pyrf_throttle_event__type = {
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PyVarObject_HEAD_INIT(NULL, 0)
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.tp_name = "perf.throttle_event",
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.tp_basicsize = sizeof(struct pyrf_event),
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.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
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.tp_doc = pyrf_throttle_event__doc,
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.tp_members = pyrf_throttle_event__members,
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.tp_repr = (reprfunc)pyrf_throttle_event__repr,
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};
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static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
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static PyMemberDef pyrf_lost_event__members[] = {
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sample_members
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member_def(lost_event, id, T_ULONGLONG, "event id"),
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member_def(lost_event, lost, T_ULONGLONG, "number of lost events"),
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{ .name = NULL, },
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};
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static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
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{
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PyObject *ret;
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char *s;
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if (asprintf(&s, "{ type: lost, id: %#" PRIx64 ", "
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"lost: %#" PRIx64 " }",
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pevent->event.lost.id, pevent->event.lost.lost) < 0) {
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ret = PyErr_NoMemory();
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} else {
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ret = PyString_FromString(s);
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free(s);
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}
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return ret;
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}
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static PyTypeObject pyrf_lost_event__type = {
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PyVarObject_HEAD_INIT(NULL, 0)
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.tp_name = "perf.lost_event",
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.tp_basicsize = sizeof(struct pyrf_event),
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.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
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.tp_doc = pyrf_lost_event__doc,
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.tp_members = pyrf_lost_event__members,
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.tp_repr = (reprfunc)pyrf_lost_event__repr,
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};
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static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
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static PyMemberDef pyrf_read_event__members[] = {
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sample_members
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member_def(read_event, pid, T_UINT, "event pid"),
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member_def(read_event, tid, T_UINT, "event tid"),
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{ .name = NULL, },
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};
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static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
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{
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return PyString_FromFormat("{ type: read, pid: %u, tid: %u }",
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pevent->event.read.pid,
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pevent->event.read.tid);
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/*
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* FIXME: return the array of read values,
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* making this method useful ;-)
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*/
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}
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static PyTypeObject pyrf_read_event__type = {
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PyVarObject_HEAD_INIT(NULL, 0)
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.tp_name = "perf.read_event",
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.tp_basicsize = sizeof(struct pyrf_event),
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.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
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.tp_doc = pyrf_read_event__doc,
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.tp_members = pyrf_read_event__members,
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.tp_repr = (reprfunc)pyrf_read_event__repr,
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};
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static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
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static PyMemberDef pyrf_sample_event__members[] = {
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sample_members
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member_def(perf_event_header, type, T_UINT, "event type"),
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{ .name = NULL, },
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};
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static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
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{
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PyObject *ret;
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char *s;
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if (asprintf(&s, "{ type: sample }") < 0) {
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ret = PyErr_NoMemory();
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} else {
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ret = PyString_FromString(s);
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free(s);
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}
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return ret;
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}
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static PyTypeObject pyrf_sample_event__type = {
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PyVarObject_HEAD_INIT(NULL, 0)
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.tp_name = "perf.sample_event",
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.tp_basicsize = sizeof(struct pyrf_event),
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.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
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.tp_doc = pyrf_sample_event__doc,
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.tp_members = pyrf_sample_event__members,
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.tp_repr = (reprfunc)pyrf_sample_event__repr,
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};
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static int pyrf_event__setup_types(void)
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{
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int err;
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pyrf_mmap_event__type.tp_new =
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pyrf_task_event__type.tp_new =
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pyrf_comm_event__type.tp_new =
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pyrf_lost_event__type.tp_new =
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pyrf_read_event__type.tp_new =
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pyrf_sample_event__type.tp_new =
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pyrf_throttle_event__type.tp_new = PyType_GenericNew;
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err = PyType_Ready(&pyrf_mmap_event__type);
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if (err < 0)
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goto out;
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err = PyType_Ready(&pyrf_lost_event__type);
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if (err < 0)
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goto out;
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err = PyType_Ready(&pyrf_task_event__type);
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if (err < 0)
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goto out;
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err = PyType_Ready(&pyrf_comm_event__type);
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if (err < 0)
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goto out;
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err = PyType_Ready(&pyrf_throttle_event__type);
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if (err < 0)
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goto out;
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err = PyType_Ready(&pyrf_read_event__type);
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if (err < 0)
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goto out;
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err = PyType_Ready(&pyrf_sample_event__type);
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if (err < 0)
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goto out;
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out:
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return err;
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}
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static PyTypeObject *pyrf_event__type[] = {
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[PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
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[PERF_RECORD_LOST] = &pyrf_lost_event__type,
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[PERF_RECORD_COMM] = &pyrf_comm_event__type,
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[PERF_RECORD_EXIT] = &pyrf_task_event__type,
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[PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
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[PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
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[PERF_RECORD_FORK] = &pyrf_task_event__type,
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[PERF_RECORD_READ] = &pyrf_read_event__type,
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[PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
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};
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static PyObject *pyrf_event__new(union perf_event *event)
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{
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struct pyrf_event *pevent;
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PyTypeObject *ptype;
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if (event->header.type < PERF_RECORD_MMAP ||
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event->header.type > PERF_RECORD_SAMPLE)
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return NULL;
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ptype = pyrf_event__type[event->header.type];
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pevent = PyObject_New(struct pyrf_event, ptype);
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if (pevent != NULL)
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memcpy(&pevent->event, event, event->header.size);
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return (PyObject *)pevent;
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}
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struct pyrf_cpu_map {
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PyObject_HEAD
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struct cpu_map *cpus;
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};
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static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
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PyObject *args, PyObject *kwargs)
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{
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static char *kwlist[] = { "cpustr", NULL };
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char *cpustr = NULL;
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if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
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kwlist, &cpustr))
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return -1;
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pcpus->cpus = cpu_map__new(cpustr);
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if (pcpus->cpus == NULL)
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return -1;
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return 0;
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}
|
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|
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static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
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{
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cpu_map__delete(pcpus->cpus);
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pcpus->ob_type->tp_free((PyObject*)pcpus);
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}
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static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
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{
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struct pyrf_cpu_map *pcpus = (void *)obj;
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|
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return pcpus->cpus->nr;
|
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}
|
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|
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static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
|
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{
|
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struct pyrf_cpu_map *pcpus = (void *)obj;
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if (i >= pcpus->cpus->nr)
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return NULL;
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|
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return Py_BuildValue("i", pcpus->cpus->map[i]);
|
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}
|
|
|
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static PySequenceMethods pyrf_cpu_map__sequence_methods = {
|
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.sq_length = pyrf_cpu_map__length,
|
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.sq_item = pyrf_cpu_map__item,
|
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};
|
|
|
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static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
|
|
|
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static PyTypeObject pyrf_cpu_map__type = {
|
|
PyVarObject_HEAD_INIT(NULL, 0)
|
|
.tp_name = "perf.cpu_map",
|
|
.tp_basicsize = sizeof(struct pyrf_cpu_map),
|
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.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;
|
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return PyType_Ready(&pyrf_cpu_map__type);
|
|
}
|
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|
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struct pyrf_thread_map {
|
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PyObject_HEAD
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|
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struct thread_map *threads;
|
|
};
|
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|
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static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
|
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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",
|
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kwlist, &pid, &tid, &uid))
|
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return -1;
|
|
|
|
pthreads->threads = thread_map__new(pid, tid, uid);
|
|
if (pthreads->threads == NULL)
|
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return -1;
|
|
return 0;
|
|
}
|
|
|
|
static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
|
|
{
|
|
thread_map__delete(pthreads->threads);
|
|
pthreads->ob_type->tp_free((PyObject*)pthreads);
|
|
}
|
|
|
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static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
|
|
{
|
|
struct pyrf_thread_map *pthreads = (void *)obj;
|
|
|
|
return pthreads->threads->nr;
|
|
}
|
|
|
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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",
|
|
"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,
|
|
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,
|
|
"|iKiKKiiiiiiiiiiiiiiiiiiiiiKK", 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, &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.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;
|
|
|
|
perf_evsel__init(&pevsel->evsel, &attr, idx);
|
|
return 0;
|
|
}
|
|
|
|
static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
|
|
{
|
|
perf_evsel__exit(&pevsel->evsel);
|
|
pevsel->ob_type->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, group, NULL) < 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 __used)
|
|
{
|
|
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);
|
|
pevlist->ob_type->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, overwrite) < 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 = poll(evlist->pollfd, evlist->nr_fds, 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 __used, PyObject *kwargs __used)
|
|
{
|
|
struct perf_evlist *evlist = &pevlist->evlist;
|
|
PyObject *list = PyList_New(0);
|
|
int i;
|
|
|
|
for (i = 0; i < evlist->nr_fds; ++i) {
|
|
PyObject *file;
|
|
FILE *fp = fdopen(evlist->pollfd[i].fd, "r");
|
|
|
|
if (fp == NULL)
|
|
goto free_list;
|
|
|
|
file = PyFile_FromFile(fp, "perf", "r", NULL);
|
|
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 __used)
|
|
{
|
|
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 };
|
|
int err;
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
|
|
&cpu, &sample_id_all))
|
|
return NULL;
|
|
|
|
event = perf_evlist__mmap_read(evlist, cpu);
|
|
if (event != NULL) {
|
|
struct perf_evsel *first;
|
|
PyObject *pyevent = pyrf_event__new(event);
|
|
struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
|
|
|
|
if (pyevent == NULL)
|
|
return PyErr_NoMemory();
|
|
|
|
first = list_entry(evlist->entries.next, struct perf_evsel, node);
|
|
err = perf_event__parse_sample(event, first->attr.sample_type,
|
|
perf_evsel__sample_size(first),
|
|
sample_id_all, &pevent->sample, false);
|
|
if (err)
|
|
return PyErr_Format(PyExc_OSError,
|
|
"perf: can't parse sample, err=%d", err);
|
|
return pyevent;
|
|
}
|
|
|
|
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 (perf_evlist__open(evlist, group) < 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;
|
|
|
|
list_for_each_entry(pos, &pevlist->evlist.entries, node)
|
|
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);
|
|
}
|
|
|
|
static struct {
|
|
const char *name;
|
|
int value;
|
|
} perf__constants[] = {
|
|
{ "TYPE_HARDWARE", PERF_TYPE_HARDWARE },
|
|
{ "TYPE_SOFTWARE", PERF_TYPE_SOFTWARE },
|
|
{ "TYPE_TRACEPOINT", PERF_TYPE_TRACEPOINT },
|
|
{ "TYPE_HW_CACHE", PERF_TYPE_HW_CACHE },
|
|
{ "TYPE_RAW", PERF_TYPE_RAW },
|
|
{ "TYPE_BREAKPOINT", PERF_TYPE_BREAKPOINT },
|
|
|
|
{ "COUNT_HW_CPU_CYCLES", PERF_COUNT_HW_CPU_CYCLES },
|
|
{ "COUNT_HW_INSTRUCTIONS", PERF_COUNT_HW_INSTRUCTIONS },
|
|
{ "COUNT_HW_CACHE_REFERENCES", PERF_COUNT_HW_CACHE_REFERENCES },
|
|
{ "COUNT_HW_CACHE_MISSES", PERF_COUNT_HW_CACHE_MISSES },
|
|
{ "COUNT_HW_BRANCH_INSTRUCTIONS", PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
|
|
{ "COUNT_HW_BRANCH_MISSES", PERF_COUNT_HW_BRANCH_MISSES },
|
|
{ "COUNT_HW_BUS_CYCLES", PERF_COUNT_HW_BUS_CYCLES },
|
|
{ "COUNT_HW_CACHE_L1D", PERF_COUNT_HW_CACHE_L1D },
|
|
{ "COUNT_HW_CACHE_L1I", PERF_COUNT_HW_CACHE_L1I },
|
|
{ "COUNT_HW_CACHE_LL", PERF_COUNT_HW_CACHE_LL },
|
|
{ "COUNT_HW_CACHE_DTLB", PERF_COUNT_HW_CACHE_DTLB },
|
|
{ "COUNT_HW_CACHE_ITLB", PERF_COUNT_HW_CACHE_ITLB },
|
|
{ "COUNT_HW_CACHE_BPU", PERF_COUNT_HW_CACHE_BPU },
|
|
{ "COUNT_HW_CACHE_OP_READ", PERF_COUNT_HW_CACHE_OP_READ },
|
|
{ "COUNT_HW_CACHE_OP_WRITE", PERF_COUNT_HW_CACHE_OP_WRITE },
|
|
{ "COUNT_HW_CACHE_OP_PREFETCH", PERF_COUNT_HW_CACHE_OP_PREFETCH },
|
|
{ "COUNT_HW_CACHE_RESULT_ACCESS", PERF_COUNT_HW_CACHE_RESULT_ACCESS },
|
|
{ "COUNT_HW_CACHE_RESULT_MISS", PERF_COUNT_HW_CACHE_RESULT_MISS },
|
|
|
|
{ "COUNT_HW_STALLED_CYCLES_FRONTEND", PERF_COUNT_HW_STALLED_CYCLES_FRONTEND },
|
|
{ "COUNT_HW_STALLED_CYCLES_BACKEND", PERF_COUNT_HW_STALLED_CYCLES_BACKEND },
|
|
|
|
{ "COUNT_SW_CPU_CLOCK", PERF_COUNT_SW_CPU_CLOCK },
|
|
{ "COUNT_SW_TASK_CLOCK", PERF_COUNT_SW_TASK_CLOCK },
|
|
{ "COUNT_SW_PAGE_FAULTS", PERF_COUNT_SW_PAGE_FAULTS },
|
|
{ "COUNT_SW_CONTEXT_SWITCHES", PERF_COUNT_SW_CONTEXT_SWITCHES },
|
|
{ "COUNT_SW_CPU_MIGRATIONS", PERF_COUNT_SW_CPU_MIGRATIONS },
|
|
{ "COUNT_SW_PAGE_FAULTS_MIN", PERF_COUNT_SW_PAGE_FAULTS_MIN },
|
|
{ "COUNT_SW_PAGE_FAULTS_MAJ", PERF_COUNT_SW_PAGE_FAULTS_MAJ },
|
|
{ "COUNT_SW_ALIGNMENT_FAULTS", PERF_COUNT_SW_ALIGNMENT_FAULTS },
|
|
{ "COUNT_SW_EMULATION_FAULTS", PERF_COUNT_SW_EMULATION_FAULTS },
|
|
|
|
{ "SAMPLE_IP", PERF_SAMPLE_IP },
|
|
{ "SAMPLE_TID", PERF_SAMPLE_TID },
|
|
{ "SAMPLE_TIME", PERF_SAMPLE_TIME },
|
|
{ "SAMPLE_ADDR", PERF_SAMPLE_ADDR },
|
|
{ "SAMPLE_READ", PERF_SAMPLE_READ },
|
|
{ "SAMPLE_CALLCHAIN", PERF_SAMPLE_CALLCHAIN },
|
|
{ "SAMPLE_ID", PERF_SAMPLE_ID },
|
|
{ "SAMPLE_CPU", PERF_SAMPLE_CPU },
|
|
{ "SAMPLE_PERIOD", PERF_SAMPLE_PERIOD },
|
|
{ "SAMPLE_STREAM_ID", PERF_SAMPLE_STREAM_ID },
|
|
{ "SAMPLE_RAW", PERF_SAMPLE_RAW },
|
|
|
|
{ "FORMAT_TOTAL_TIME_ENABLED", PERF_FORMAT_TOTAL_TIME_ENABLED },
|
|
{ "FORMAT_TOTAL_TIME_RUNNING", PERF_FORMAT_TOTAL_TIME_RUNNING },
|
|
{ "FORMAT_ID", PERF_FORMAT_ID },
|
|
{ "FORMAT_GROUP", PERF_FORMAT_GROUP },
|
|
|
|
{ "RECORD_MMAP", PERF_RECORD_MMAP },
|
|
{ "RECORD_LOST", PERF_RECORD_LOST },
|
|
{ "RECORD_COMM", PERF_RECORD_COMM },
|
|
{ "RECORD_EXIT", PERF_RECORD_EXIT },
|
|
{ "RECORD_THROTTLE", PERF_RECORD_THROTTLE },
|
|
{ "RECORD_UNTHROTTLE", PERF_RECORD_UNTHROTTLE },
|
|
{ "RECORD_FORK", PERF_RECORD_FORK },
|
|
{ "RECORD_READ", PERF_RECORD_READ },
|
|
{ "RECORD_SAMPLE", PERF_RECORD_SAMPLE },
|
|
{ .name = NULL, },
|
|
};
|
|
|
|
static PyMethodDef perf__methods[] = {
|
|
{ .ml_name = NULL, }
|
|
};
|
|
|
|
PyMODINIT_FUNC initperf(void)
|
|
{
|
|
PyObject *obj;
|
|
int i;
|
|
PyObject *dict, *module = Py_InitModule("perf", perf__methods);
|
|
|
|
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)
|
|
return;
|
|
|
|
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_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 = PyInt_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!");
|
|
}
|