#include <Python.h> #include <structmember.h> #include <inttypes.h> #include <poll.h> #include "evlist.h" #include "evsel.h" #include "event.h" #include "cpumap.h" #include "thread_map.h" /* * Support debug printing even though util/debug.c is not linked. That means * implementing 'verbose' and 'eprintf'. */ int verbose; int eprintf(int level, const char *fmt, ...) { va_list args; int ret = 0; if (verbose >= 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 PyMODINIT_FUNC initperf(void); #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_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(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 = PyString_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 PyString_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 PyString_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 PyString_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 = PyString_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 PyString_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 = PyString_FromString(s); free(s); } return ret; } 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, }; 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_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; 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, }; 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) 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__delete(pcpus->cpus); pcpus->ob_type->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__delete(pthreads->threads); pthreads->ob_type->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", "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) < 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); 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 __maybe_unused, PyObject *kwargs __maybe_unused) { 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 __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 }; 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) { PyObject *pyevent = pyrf_event__new(event); struct pyrf_event *pevent = (struct pyrf_event *)pyevent; perf_evlist__mmap_consume(evlist, cpu); if (pyevent == NULL) return PyErr_NoMemory(); err = perf_evlist__parse_sample(evlist, event, &pevent->sample); 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 (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; 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 }, { "COUNT_SW_DUMMY", PERF_COUNT_SW_DUMMY }, { "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; /* 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_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!"); } /* * 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) { }