2 * trace-event-python. Feed trace events to an embedded Python interpreter.
4 * Copyright (C) 2010 Tom Zanussi <tzanussi@gmail.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 #include <linux/bitmap.h>
31 #include <linux/compiler.h>
32 #include <linux/time64.h>
34 #include "../build-id.h"
35 #include "../counts.h"
38 #include "../callchain.h"
42 #include "../thread.h"
44 #include "../machine.h"
45 #include "../db-export.h"
46 #include "../thread-stack.h"
47 #include "../trace-event.h"
48 #include "../call-path.h"
51 #include "thread_map.h"
52 #include "print_binary.h"
54 #include "mem-events.h"
56 #if PY_MAJOR_VERSION < 3
57 #define _PyUnicode_FromString(arg) \
58 PyString_FromString(arg)
59 #define _PyUnicode_FromStringAndSize(arg1, arg2) \
60 PyString_FromStringAndSize((arg1), (arg2))
61 #define _PyBytes_FromStringAndSize(arg1, arg2) \
62 PyString_FromStringAndSize((arg1), (arg2))
63 #define _PyLong_FromLong(arg) \
65 #define _PyLong_AsLong(arg) \
67 #define _PyCapsule_New(arg1, arg2, arg3) \
68 PyCObject_FromVoidPtr((arg1), (arg2))
70 PyMODINIT_FUNC initperf_trace_context(void);
72 #define _PyUnicode_FromString(arg) \
73 PyUnicode_FromString(arg)
74 #define _PyUnicode_FromStringAndSize(arg1, arg2) \
75 PyUnicode_FromStringAndSize((arg1), (arg2))
76 #define _PyBytes_FromStringAndSize(arg1, arg2) \
77 PyBytes_FromStringAndSize((arg1), (arg2))
78 #define _PyLong_FromLong(arg) \
80 #define _PyLong_AsLong(arg) \
82 #define _PyCapsule_New(arg1, arg2, arg3) \
83 PyCapsule_New((arg1), (arg2), (arg3))
85 PyMODINIT_FUNC PyInit_perf_trace_context(void);
88 #define TRACE_EVENT_TYPE_MAX \
89 ((1 << (sizeof(unsigned short) * 8)) - 1)
91 static DECLARE_BITMAP(events_defined, TRACE_EVENT_TYPE_MAX);
94 #define N_COMMON_FIELDS 7
96 extern struct scripting_context *scripting_context;
98 static char *cur_field_name;
99 static int zero_flag_atom;
101 static PyObject *main_module, *main_dict;
104 struct db_export dbe;
105 PyObject *evsel_handler;
106 PyObject *machine_handler;
107 PyObject *thread_handler;
108 PyObject *comm_handler;
109 PyObject *comm_thread_handler;
110 PyObject *dso_handler;
111 PyObject *symbol_handler;
112 PyObject *branch_type_handler;
113 PyObject *sample_handler;
114 PyObject *call_path_handler;
115 PyObject *call_return_handler;
116 PyObject *synth_handler;
117 PyObject *context_switch_handler;
121 static struct tables tables_global;
123 static void handler_call_die(const char *handler_name) __noreturn;
124 static void handler_call_die(const char *handler_name)
127 Py_FatalError("problem in Python trace event handler");
128 // Py_FatalError does not return
129 // but we have to make the compiler happy
134 * Insert val into into the dictionary and decrement the reference counter.
135 * This is necessary for dictionaries since PyDict_SetItemString() does not
136 * steal a reference, as opposed to PyTuple_SetItem().
138 static void pydict_set_item_string_decref(PyObject *dict, const char *key, PyObject *val)
140 PyDict_SetItemString(dict, key, val);
144 static PyObject *get_handler(const char *handler_name)
148 handler = PyDict_GetItemString(main_dict, handler_name);
149 if (handler && !PyCallable_Check(handler))
154 static int get_argument_count(PyObject *handler)
159 * The attribute for the code object is func_code in Python 2,
160 * whereas it is __code__ in Python 3.0+.
162 PyObject *code_obj = PyObject_GetAttrString(handler,
164 if (PyErr_Occurred()) {
166 code_obj = PyObject_GetAttrString(handler,
171 PyObject *arg_count_obj = PyObject_GetAttrString(code_obj,
174 arg_count = (int) _PyLong_AsLong(arg_count_obj);
175 Py_DECREF(arg_count_obj);
182 static void call_object(PyObject *handler, PyObject *args, const char *die_msg)
186 retval = PyObject_CallObject(handler, args);
188 handler_call_die(die_msg);
192 static void try_call_object(const char *handler_name, PyObject *args)
196 handler = get_handler(handler_name);
198 call_object(handler, args, handler_name);
201 static void define_value(enum tep_print_arg_type field_type,
203 const char *field_name,
204 const char *field_value,
205 const char *field_str)
207 const char *handler_name = "define_flag_value";
209 unsigned long long value;
212 if (field_type == TEP_PRINT_SYMBOL)
213 handler_name = "define_symbolic_value";
217 Py_FatalError("couldn't create Python tuple");
219 value = eval_flag(field_value);
221 PyTuple_SetItem(t, n++, _PyUnicode_FromString(ev_name));
222 PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_name));
223 PyTuple_SetItem(t, n++, _PyLong_FromLong(value));
224 PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_str));
226 try_call_object(handler_name, t);
231 static void define_values(enum tep_print_arg_type field_type,
232 struct tep_print_flag_sym *field,
234 const char *field_name)
236 define_value(field_type, ev_name, field_name, field->value,
240 define_values(field_type, field->next, ev_name, field_name);
243 static void define_field(enum tep_print_arg_type field_type,
245 const char *field_name,
248 const char *handler_name = "define_flag_field";
252 if (field_type == TEP_PRINT_SYMBOL)
253 handler_name = "define_symbolic_field";
255 if (field_type == TEP_PRINT_FLAGS)
260 Py_FatalError("couldn't create Python tuple");
262 PyTuple_SetItem(t, n++, _PyUnicode_FromString(ev_name));
263 PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_name));
264 if (field_type == TEP_PRINT_FLAGS)
265 PyTuple_SetItem(t, n++, _PyUnicode_FromString(delim));
267 try_call_object(handler_name, t);
272 static void define_event_symbols(struct tep_event *event,
274 struct tep_print_arg *args)
279 switch (args->type) {
283 define_value(TEP_PRINT_FLAGS, ev_name, cur_field_name, "0",
287 case TEP_PRINT_FIELD:
288 free(cur_field_name);
289 cur_field_name = strdup(args->field.name);
291 case TEP_PRINT_FLAGS:
292 define_event_symbols(event, ev_name, args->flags.field);
293 define_field(TEP_PRINT_FLAGS, ev_name, cur_field_name,
295 define_values(TEP_PRINT_FLAGS, args->flags.flags, ev_name,
298 case TEP_PRINT_SYMBOL:
299 define_event_symbols(event, ev_name, args->symbol.field);
300 define_field(TEP_PRINT_SYMBOL, ev_name, cur_field_name, NULL);
301 define_values(TEP_PRINT_SYMBOL, args->symbol.symbols, ev_name,
305 case TEP_PRINT_HEX_STR:
306 define_event_symbols(event, ev_name, args->hex.field);
307 define_event_symbols(event, ev_name, args->hex.size);
309 case TEP_PRINT_INT_ARRAY:
310 define_event_symbols(event, ev_name, args->int_array.field);
311 define_event_symbols(event, ev_name, args->int_array.count);
312 define_event_symbols(event, ev_name, args->int_array.el_size);
314 case TEP_PRINT_STRING:
317 define_event_symbols(event, ev_name, args->typecast.item);
320 if (strcmp(args->op.op, ":") == 0)
322 define_event_symbols(event, ev_name, args->op.left);
323 define_event_symbols(event, ev_name, args->op.right);
326 /* gcc warns for these? */
327 case TEP_PRINT_BSTRING:
328 case TEP_PRINT_DYNAMIC_ARRAY:
329 case TEP_PRINT_DYNAMIC_ARRAY_LEN:
331 case TEP_PRINT_BITMASK:
332 /* we should warn... */
337 define_event_symbols(event, ev_name, args->next);
340 static PyObject *get_field_numeric_entry(struct tep_event *event,
341 struct tep_format_field *field, void *data)
343 bool is_array = field->flags & TEP_FIELD_IS_ARRAY;
344 PyObject *obj = NULL, *list = NULL;
345 unsigned long long val;
346 unsigned int item_size, n_items, i;
349 list = PyList_New(field->arraylen);
350 item_size = field->size / field->arraylen;
351 n_items = field->arraylen;
353 item_size = field->size;
357 for (i = 0; i < n_items; i++) {
359 val = read_size(event, data + field->offset + i * item_size,
361 if (field->flags & TEP_FIELD_IS_SIGNED) {
362 if ((long long)val >= LONG_MIN &&
363 (long long)val <= LONG_MAX)
364 obj = _PyLong_FromLong(val);
366 obj = PyLong_FromLongLong(val);
369 obj = _PyLong_FromLong(val);
371 obj = PyLong_FromUnsignedLongLong(val);
374 PyList_SET_ITEM(list, i, obj);
381 static const char *get_dsoname(struct map *map)
383 const char *dsoname = "[unknown]";
385 if (map && map->dso) {
386 if (symbol_conf.show_kernel_path && map->dso->long_name)
387 dsoname = map->dso->long_name;
389 dsoname = map->dso->name;
395 static PyObject *python_process_callchain(struct perf_sample *sample,
397 struct addr_location *al)
401 pylist = PyList_New(0);
403 Py_FatalError("couldn't create Python list");
405 if (!symbol_conf.use_callchain || !sample->callchain)
408 if (thread__resolve_callchain(al->thread, &callchain_cursor, evsel,
410 scripting_max_stack) != 0) {
411 pr_err("Failed to resolve callchain. Skipping\n");
414 callchain_cursor_commit(&callchain_cursor);
419 struct callchain_cursor_node *node;
420 node = callchain_cursor_current(&callchain_cursor);
424 pyelem = PyDict_New();
426 Py_FatalError("couldn't create Python dictionary");
429 pydict_set_item_string_decref(pyelem, "ip",
430 PyLong_FromUnsignedLongLong(node->ip));
433 PyObject *pysym = PyDict_New();
435 Py_FatalError("couldn't create Python dictionary");
436 pydict_set_item_string_decref(pysym, "start",
437 PyLong_FromUnsignedLongLong(node->ms.sym->start));
438 pydict_set_item_string_decref(pysym, "end",
439 PyLong_FromUnsignedLongLong(node->ms.sym->end));
440 pydict_set_item_string_decref(pysym, "binding",
441 _PyLong_FromLong(node->ms.sym->binding));
442 pydict_set_item_string_decref(pysym, "name",
443 _PyUnicode_FromStringAndSize(node->ms.sym->name,
444 node->ms.sym->namelen));
445 pydict_set_item_string_decref(pyelem, "sym", pysym);
449 const char *dsoname = get_dsoname(node->ms.map);
451 pydict_set_item_string_decref(pyelem, "dso",
452 _PyUnicode_FromString(dsoname));
455 callchain_cursor_advance(&callchain_cursor);
456 PyList_Append(pylist, pyelem);
464 static PyObject *python_process_brstack(struct perf_sample *sample,
465 struct thread *thread)
467 struct branch_stack *br = sample->branch_stack;
468 struct branch_entry *entries = perf_sample__branch_entries(sample);
472 pylist = PyList_New(0);
474 Py_FatalError("couldn't create Python list");
479 for (i = 0; i < br->nr; i++) {
481 struct addr_location al;
484 pyelem = PyDict_New();
486 Py_FatalError("couldn't create Python dictionary");
488 pydict_set_item_string_decref(pyelem, "from",
489 PyLong_FromUnsignedLongLong(entries[i].from));
490 pydict_set_item_string_decref(pyelem, "to",
491 PyLong_FromUnsignedLongLong(entries[i].to));
492 pydict_set_item_string_decref(pyelem, "mispred",
493 PyBool_FromLong(entries[i].flags.mispred));
494 pydict_set_item_string_decref(pyelem, "predicted",
495 PyBool_FromLong(entries[i].flags.predicted));
496 pydict_set_item_string_decref(pyelem, "in_tx",
497 PyBool_FromLong(entries[i].flags.in_tx));
498 pydict_set_item_string_decref(pyelem, "abort",
499 PyBool_FromLong(entries[i].flags.abort));
500 pydict_set_item_string_decref(pyelem, "cycles",
501 PyLong_FromUnsignedLongLong(entries[i].flags.cycles));
503 thread__find_map_fb(thread, sample->cpumode,
504 entries[i].from, &al);
505 dsoname = get_dsoname(al.map);
506 pydict_set_item_string_decref(pyelem, "from_dsoname",
507 _PyUnicode_FromString(dsoname));
509 thread__find_map_fb(thread, sample->cpumode,
511 dsoname = get_dsoname(al.map);
512 pydict_set_item_string_decref(pyelem, "to_dsoname",
513 _PyUnicode_FromString(dsoname));
515 PyList_Append(pylist, pyelem);
523 static unsigned long get_offset(struct symbol *sym, struct addr_location *al)
525 unsigned long offset;
527 if (al->addr < sym->end)
528 offset = al->addr - sym->start;
530 offset = al->addr - al->map->start - sym->start;
535 static int get_symoff(struct symbol *sym, struct addr_location *al,
536 bool print_off, char *bf, int size)
538 unsigned long offset;
540 if (!sym || !sym->name[0])
541 return scnprintf(bf, size, "%s", "[unknown]");
544 return scnprintf(bf, size, "%s", sym->name);
546 offset = get_offset(sym, al);
548 return scnprintf(bf, size, "%s+0x%x", sym->name, offset);
551 static int get_br_mspred(struct branch_flags *flags, char *bf, int size)
553 if (!flags->mispred && !flags->predicted)
554 return scnprintf(bf, size, "%s", "-");
557 return scnprintf(bf, size, "%s", "M");
559 return scnprintf(bf, size, "%s", "P");
562 static PyObject *python_process_brstacksym(struct perf_sample *sample,
563 struct thread *thread)
565 struct branch_stack *br = sample->branch_stack;
566 struct branch_entry *entries = perf_sample__branch_entries(sample);
570 struct addr_location al;
572 pylist = PyList_New(0);
574 Py_FatalError("couldn't create Python list");
579 for (i = 0; i < br->nr; i++) {
582 pyelem = PyDict_New();
584 Py_FatalError("couldn't create Python dictionary");
586 thread__find_symbol_fb(thread, sample->cpumode,
587 entries[i].from, &al);
588 get_symoff(al.sym, &al, true, bf, sizeof(bf));
589 pydict_set_item_string_decref(pyelem, "from",
590 _PyUnicode_FromString(bf));
592 thread__find_symbol_fb(thread, sample->cpumode,
594 get_symoff(al.sym, &al, true, bf, sizeof(bf));
595 pydict_set_item_string_decref(pyelem, "to",
596 _PyUnicode_FromString(bf));
598 get_br_mspred(&entries[i].flags, bf, sizeof(bf));
599 pydict_set_item_string_decref(pyelem, "pred",
600 _PyUnicode_FromString(bf));
602 if (entries[i].flags.in_tx) {
603 pydict_set_item_string_decref(pyelem, "in_tx",
604 _PyUnicode_FromString("X"));
606 pydict_set_item_string_decref(pyelem, "in_tx",
607 _PyUnicode_FromString("-"));
610 if (entries[i].flags.abort) {
611 pydict_set_item_string_decref(pyelem, "abort",
612 _PyUnicode_FromString("A"));
614 pydict_set_item_string_decref(pyelem, "abort",
615 _PyUnicode_FromString("-"));
618 PyList_Append(pylist, pyelem);
626 static PyObject *get_sample_value_as_tuple(struct sample_read_value *value)
632 Py_FatalError("couldn't create Python tuple");
633 PyTuple_SetItem(t, 0, PyLong_FromUnsignedLongLong(value->id));
634 PyTuple_SetItem(t, 1, PyLong_FromUnsignedLongLong(value->value));
638 static void set_sample_read_in_dict(PyObject *dict_sample,
639 struct perf_sample *sample,
642 u64 read_format = evsel->core.attr.read_format;
646 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
647 pydict_set_item_string_decref(dict_sample, "time_enabled",
648 PyLong_FromUnsignedLongLong(sample->read.time_enabled));
651 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
652 pydict_set_item_string_decref(dict_sample, "time_running",
653 PyLong_FromUnsignedLongLong(sample->read.time_running));
656 if (read_format & PERF_FORMAT_GROUP)
657 values = PyList_New(sample->read.group.nr);
659 values = PyList_New(1);
662 Py_FatalError("couldn't create Python list");
664 if (read_format & PERF_FORMAT_GROUP) {
665 for (i = 0; i < sample->read.group.nr; i++) {
666 PyObject *t = get_sample_value_as_tuple(&sample->read.group.values[i]);
667 PyList_SET_ITEM(values, i, t);
670 PyObject *t = get_sample_value_as_tuple(&sample->read.one);
671 PyList_SET_ITEM(values, 0, t);
673 pydict_set_item_string_decref(dict_sample, "values", values);
676 static void set_sample_datasrc_in_dict(PyObject *dict,
677 struct perf_sample *sample)
679 struct mem_info mi = { .data_src.val = sample->data_src };
682 pydict_set_item_string_decref(dict, "datasrc",
683 PyLong_FromUnsignedLongLong(sample->data_src));
685 perf_script__meminfo_scnprintf(decode, 100, &mi);
687 pydict_set_item_string_decref(dict, "datasrc_decode",
688 _PyUnicode_FromString(decode));
691 static void regs_map(struct regs_dump *regs, uint64_t mask, const char *arch, char *bf, int size)
693 unsigned int i = 0, r;
698 if (!regs || !regs->regs)
701 for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) {
702 u64 val = regs->regs[i++];
704 printed += scnprintf(bf + printed, size - printed,
705 "%5s:0x%" PRIx64 " ",
706 perf_reg_name(r, arch), val);
710 static void set_regs_in_dict(PyObject *dict,
711 struct perf_sample *sample,
714 struct perf_event_attr *attr = &evsel->core.attr;
715 const char *arch = perf_env__arch(evsel__env(evsel));
718 * Here value 28 is a constant size which can be used to print
719 * one register value and its corresponds to:
720 * 16 chars is to specify 64 bit register in hexadecimal.
721 * 2 chars is for appending "0x" to the hexadecimal value and
722 * 10 chars is for register name.
724 int size = __sw_hweight64(attr->sample_regs_intr) * 28;
727 regs_map(&sample->intr_regs, attr->sample_regs_intr, arch, bf, sizeof(bf));
729 pydict_set_item_string_decref(dict, "iregs",
730 _PyUnicode_FromString(bf));
732 regs_map(&sample->user_regs, attr->sample_regs_user, arch, bf, sizeof(bf));
734 pydict_set_item_string_decref(dict, "uregs",
735 _PyUnicode_FromString(bf));
738 static void set_sym_in_dict(PyObject *dict, struct addr_location *al,
739 const char *dso_field, const char *sym_field,
740 const char *symoff_field)
743 pydict_set_item_string_decref(dict, dso_field,
744 _PyUnicode_FromString(al->map->dso->name));
747 pydict_set_item_string_decref(dict, sym_field,
748 _PyUnicode_FromString(al->sym->name));
749 pydict_set_item_string_decref(dict, symoff_field,
750 PyLong_FromUnsignedLong(get_offset(al->sym, al)));
754 static void set_sample_flags(PyObject *dict, u32 flags)
756 const char *ch = PERF_IP_FLAG_CHARS;
759 for (p = str; *ch; ch++, flags >>= 1) {
764 pydict_set_item_string_decref(dict, "flags", _PyUnicode_FromString(str));
767 static void python_process_sample_flags(struct perf_sample *sample, PyObject *dict_sample)
769 char flags_disp[SAMPLE_FLAGS_BUF_SIZE];
771 set_sample_flags(dict_sample, sample->flags);
772 perf_sample__sprintf_flags(sample->flags, flags_disp, sizeof(flags_disp));
773 pydict_set_item_string_decref(dict_sample, "flags_disp",
774 _PyUnicode_FromString(flags_disp));
777 static PyObject *get_perf_sample_dict(struct perf_sample *sample,
779 struct addr_location *al,
780 struct addr_location *addr_al,
783 PyObject *dict, *dict_sample, *brstack, *brstacksym;
787 Py_FatalError("couldn't create Python dictionary");
789 dict_sample = PyDict_New();
791 Py_FatalError("couldn't create Python dictionary");
793 pydict_set_item_string_decref(dict, "ev_name", _PyUnicode_FromString(evsel__name(evsel)));
794 pydict_set_item_string_decref(dict, "attr", _PyBytes_FromStringAndSize((const char *)&evsel->core.attr, sizeof(evsel->core.attr)));
796 pydict_set_item_string_decref(dict_sample, "pid",
797 _PyLong_FromLong(sample->pid));
798 pydict_set_item_string_decref(dict_sample, "tid",
799 _PyLong_FromLong(sample->tid));
800 pydict_set_item_string_decref(dict_sample, "cpu",
801 _PyLong_FromLong(sample->cpu));
802 pydict_set_item_string_decref(dict_sample, "ip",
803 PyLong_FromUnsignedLongLong(sample->ip));
804 pydict_set_item_string_decref(dict_sample, "time",
805 PyLong_FromUnsignedLongLong(sample->time));
806 pydict_set_item_string_decref(dict_sample, "period",
807 PyLong_FromUnsignedLongLong(sample->period));
808 pydict_set_item_string_decref(dict_sample, "phys_addr",
809 PyLong_FromUnsignedLongLong(sample->phys_addr));
810 pydict_set_item_string_decref(dict_sample, "addr",
811 PyLong_FromUnsignedLongLong(sample->addr));
812 set_sample_read_in_dict(dict_sample, sample, evsel);
813 pydict_set_item_string_decref(dict_sample, "weight",
814 PyLong_FromUnsignedLongLong(sample->weight));
815 pydict_set_item_string_decref(dict_sample, "transaction",
816 PyLong_FromUnsignedLongLong(sample->transaction));
817 set_sample_datasrc_in_dict(dict_sample, sample);
818 pydict_set_item_string_decref(dict, "sample", dict_sample);
820 pydict_set_item_string_decref(dict, "raw_buf", _PyBytes_FromStringAndSize(
821 (const char *)sample->raw_data, sample->raw_size));
822 pydict_set_item_string_decref(dict, "comm",
823 _PyUnicode_FromString(thread__comm_str(al->thread)));
824 set_sym_in_dict(dict, al, "dso", "symbol", "symoff");
826 pydict_set_item_string_decref(dict, "callchain", callchain);
828 brstack = python_process_brstack(sample, al->thread);
829 pydict_set_item_string_decref(dict, "brstack", brstack);
831 brstacksym = python_process_brstacksym(sample, al->thread);
832 pydict_set_item_string_decref(dict, "brstacksym", brstacksym);
834 pydict_set_item_string_decref(dict_sample, "cpumode",
835 _PyLong_FromLong((unsigned long)sample->cpumode));
838 pydict_set_item_string_decref(dict_sample, "addr_correlates_sym",
840 set_sym_in_dict(dict_sample, addr_al, "addr_dso", "addr_symbol", "addr_symoff");
844 python_process_sample_flags(sample, dict_sample);
846 /* Instructions per cycle (IPC) */
847 if (sample->insn_cnt && sample->cyc_cnt) {
848 pydict_set_item_string_decref(dict_sample, "insn_cnt",
849 PyLong_FromUnsignedLongLong(sample->insn_cnt));
850 pydict_set_item_string_decref(dict_sample, "cyc_cnt",
851 PyLong_FromUnsignedLongLong(sample->cyc_cnt));
854 set_regs_in_dict(dict, sample, evsel);
859 static void python_process_tracepoint(struct perf_sample *sample,
861 struct addr_location *al,
862 struct addr_location *addr_al)
864 struct tep_event *event = evsel->tp_format;
865 PyObject *handler, *context, *t, *obj = NULL, *callchain;
866 PyObject *dict = NULL, *all_entries_dict = NULL;
867 static char handler_name[256];
868 struct tep_format_field *field;
872 int cpu = sample->cpu;
873 void *data = sample->raw_data;
874 unsigned long long nsecs = sample->time;
875 const char *comm = thread__comm_str(al->thread);
876 const char *default_handler_name = "trace_unhandled";
879 snprintf(handler_name, sizeof(handler_name),
880 "ug! no event found for type %" PRIu64, (u64)evsel->core.attr.config);
881 Py_FatalError(handler_name);
884 pid = raw_field_value(event, "common_pid", data);
886 sprintf(handler_name, "%s__%s", event->system, event->name);
888 if (!test_and_set_bit(event->id, events_defined))
889 define_event_symbols(event, handler_name, event->print_fmt.args);
891 handler = get_handler(handler_name);
893 handler = get_handler(default_handler_name);
898 Py_FatalError("couldn't create Python dict");
901 t = PyTuple_New(MAX_FIELDS);
903 Py_FatalError("couldn't create Python tuple");
906 s = nsecs / NSEC_PER_SEC;
907 ns = nsecs - s * NSEC_PER_SEC;
909 context = _PyCapsule_New(scripting_context, NULL, NULL);
911 PyTuple_SetItem(t, n++, _PyUnicode_FromString(handler_name));
912 PyTuple_SetItem(t, n++, context);
915 callchain = python_process_callchain(sample, evsel, al);
916 /* Need an additional reference for the perf_sample dict */
917 Py_INCREF(callchain);
920 PyTuple_SetItem(t, n++, _PyLong_FromLong(cpu));
921 PyTuple_SetItem(t, n++, _PyLong_FromLong(s));
922 PyTuple_SetItem(t, n++, _PyLong_FromLong(ns));
923 PyTuple_SetItem(t, n++, _PyLong_FromLong(pid));
924 PyTuple_SetItem(t, n++, _PyUnicode_FromString(comm));
925 PyTuple_SetItem(t, n++, callchain);
927 pydict_set_item_string_decref(dict, "common_cpu", _PyLong_FromLong(cpu));
928 pydict_set_item_string_decref(dict, "common_s", _PyLong_FromLong(s));
929 pydict_set_item_string_decref(dict, "common_ns", _PyLong_FromLong(ns));
930 pydict_set_item_string_decref(dict, "common_pid", _PyLong_FromLong(pid));
931 pydict_set_item_string_decref(dict, "common_comm", _PyUnicode_FromString(comm));
932 pydict_set_item_string_decref(dict, "common_callchain", callchain);
934 for (field = event->format.fields; field; field = field->next) {
935 unsigned int offset, len;
936 unsigned long long val;
938 if (field->flags & TEP_FIELD_IS_ARRAY) {
939 offset = field->offset;
941 if (field->flags & TEP_FIELD_IS_DYNAMIC) {
942 val = tep_read_number(scripting_context->pevent,
947 if (field->flags & TEP_FIELD_IS_RELATIVE)
948 offset += field->offset + field->size;
950 if (field->flags & TEP_FIELD_IS_STRING &&
951 is_printable_array(data + offset, len)) {
952 obj = _PyUnicode_FromString((char *) data + offset);
954 obj = PyByteArray_FromStringAndSize((const char *) data + offset, len);
955 field->flags &= ~TEP_FIELD_IS_STRING;
957 } else { /* FIELD_IS_NUMERIC */
958 obj = get_field_numeric_entry(event, field, data);
961 PyTuple_SetItem(t, n++, obj);
963 pydict_set_item_string_decref(dict, field->name, obj);
968 PyTuple_SetItem(t, n++, dict);
970 if (get_argument_count(handler) == (int) n + 1) {
971 all_entries_dict = get_perf_sample_dict(sample, evsel, al, addr_al,
973 PyTuple_SetItem(t, n++, all_entries_dict);
975 Py_DECREF(callchain);
978 if (_PyTuple_Resize(&t, n) == -1)
979 Py_FatalError("error resizing Python tuple");
982 call_object(handler, t, handler_name);
984 call_object(handler, t, default_handler_name);
989 static PyObject *tuple_new(unsigned int sz)
995 Py_FatalError("couldn't create Python tuple");
999 static int tuple_set_s64(PyObject *t, unsigned int pos, s64 val)
1001 #if BITS_PER_LONG == 64
1002 return PyTuple_SetItem(t, pos, _PyLong_FromLong(val));
1004 #if BITS_PER_LONG == 32
1005 return PyTuple_SetItem(t, pos, PyLong_FromLongLong(val));
1010 * Databases support only signed 64-bit numbers, so even though we are
1011 * exporting a u64, it must be as s64.
1013 #define tuple_set_d64 tuple_set_s64
1015 static int tuple_set_u64(PyObject *t, unsigned int pos, u64 val)
1017 #if BITS_PER_LONG == 64
1018 return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLong(val));
1020 #if BITS_PER_LONG == 32
1021 return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLongLong(val));
1025 static int tuple_set_u32(PyObject *t, unsigned int pos, u32 val)
1027 return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLong(val));
1030 static int tuple_set_s32(PyObject *t, unsigned int pos, s32 val)
1032 return PyTuple_SetItem(t, pos, _PyLong_FromLong(val));
1035 static int tuple_set_bool(PyObject *t, unsigned int pos, bool val)
1037 return PyTuple_SetItem(t, pos, PyBool_FromLong(val));
1040 static int tuple_set_string(PyObject *t, unsigned int pos, const char *s)
1042 return PyTuple_SetItem(t, pos, _PyUnicode_FromString(s));
1045 static int tuple_set_bytes(PyObject *t, unsigned int pos, void *bytes,
1048 return PyTuple_SetItem(t, pos, _PyBytes_FromStringAndSize(bytes, sz));
1051 static int python_export_evsel(struct db_export *dbe, struct evsel *evsel)
1053 struct tables *tables = container_of(dbe, struct tables, dbe);
1058 tuple_set_d64(t, 0, evsel->db_id);
1059 tuple_set_string(t, 1, evsel__name(evsel));
1061 call_object(tables->evsel_handler, t, "evsel_table");
1068 static int python_export_machine(struct db_export *dbe,
1069 struct machine *machine)
1071 struct tables *tables = container_of(dbe, struct tables, dbe);
1076 tuple_set_d64(t, 0, machine->db_id);
1077 tuple_set_s32(t, 1, machine->pid);
1078 tuple_set_string(t, 2, machine->root_dir ? machine->root_dir : "");
1080 call_object(tables->machine_handler, t, "machine_table");
1087 static int python_export_thread(struct db_export *dbe, struct thread *thread,
1088 u64 main_thread_db_id, struct machine *machine)
1090 struct tables *tables = container_of(dbe, struct tables, dbe);
1095 tuple_set_d64(t, 0, thread->db_id);
1096 tuple_set_d64(t, 1, machine->db_id);
1097 tuple_set_d64(t, 2, main_thread_db_id);
1098 tuple_set_s32(t, 3, thread->pid_);
1099 tuple_set_s32(t, 4, thread->tid);
1101 call_object(tables->thread_handler, t, "thread_table");
1108 static int python_export_comm(struct db_export *dbe, struct comm *comm,
1109 struct thread *thread)
1111 struct tables *tables = container_of(dbe, struct tables, dbe);
1116 tuple_set_d64(t, 0, comm->db_id);
1117 tuple_set_string(t, 1, comm__str(comm));
1118 tuple_set_d64(t, 2, thread->db_id);
1119 tuple_set_d64(t, 3, comm->start);
1120 tuple_set_s32(t, 4, comm->exec);
1122 call_object(tables->comm_handler, t, "comm_table");
1129 static int python_export_comm_thread(struct db_export *dbe, u64 db_id,
1130 struct comm *comm, struct thread *thread)
1132 struct tables *tables = container_of(dbe, struct tables, dbe);
1137 tuple_set_d64(t, 0, db_id);
1138 tuple_set_d64(t, 1, comm->db_id);
1139 tuple_set_d64(t, 2, thread->db_id);
1141 call_object(tables->comm_thread_handler, t, "comm_thread_table");
1148 static int python_export_dso(struct db_export *dbe, struct dso *dso,
1149 struct machine *machine)
1151 struct tables *tables = container_of(dbe, struct tables, dbe);
1152 char sbuild_id[SBUILD_ID_SIZE];
1155 build_id__sprintf(&dso->bid, sbuild_id);
1159 tuple_set_d64(t, 0, dso->db_id);
1160 tuple_set_d64(t, 1, machine->db_id);
1161 tuple_set_string(t, 2, dso->short_name);
1162 tuple_set_string(t, 3, dso->long_name);
1163 tuple_set_string(t, 4, sbuild_id);
1165 call_object(tables->dso_handler, t, "dso_table");
1172 static int python_export_symbol(struct db_export *dbe, struct symbol *sym,
1175 struct tables *tables = container_of(dbe, struct tables, dbe);
1176 u64 *sym_db_id = symbol__priv(sym);
1181 tuple_set_d64(t, 0, *sym_db_id);
1182 tuple_set_d64(t, 1, dso->db_id);
1183 tuple_set_d64(t, 2, sym->start);
1184 tuple_set_d64(t, 3, sym->end);
1185 tuple_set_s32(t, 4, sym->binding);
1186 tuple_set_string(t, 5, sym->name);
1188 call_object(tables->symbol_handler, t, "symbol_table");
1195 static int python_export_branch_type(struct db_export *dbe, u32 branch_type,
1198 struct tables *tables = container_of(dbe, struct tables, dbe);
1203 tuple_set_s32(t, 0, branch_type);
1204 tuple_set_string(t, 1, name);
1206 call_object(tables->branch_type_handler, t, "branch_type_table");
1213 static void python_export_sample_table(struct db_export *dbe,
1214 struct export_sample *es)
1216 struct tables *tables = container_of(dbe, struct tables, dbe);
1221 tuple_set_d64(t, 0, es->db_id);
1222 tuple_set_d64(t, 1, es->evsel->db_id);
1223 tuple_set_d64(t, 2, es->al->maps->machine->db_id);
1224 tuple_set_d64(t, 3, es->al->thread->db_id);
1225 tuple_set_d64(t, 4, es->comm_db_id);
1226 tuple_set_d64(t, 5, es->dso_db_id);
1227 tuple_set_d64(t, 6, es->sym_db_id);
1228 tuple_set_d64(t, 7, es->offset);
1229 tuple_set_d64(t, 8, es->sample->ip);
1230 tuple_set_d64(t, 9, es->sample->time);
1231 tuple_set_s32(t, 10, es->sample->cpu);
1232 tuple_set_d64(t, 11, es->addr_dso_db_id);
1233 tuple_set_d64(t, 12, es->addr_sym_db_id);
1234 tuple_set_d64(t, 13, es->addr_offset);
1235 tuple_set_d64(t, 14, es->sample->addr);
1236 tuple_set_d64(t, 15, es->sample->period);
1237 tuple_set_d64(t, 16, es->sample->weight);
1238 tuple_set_d64(t, 17, es->sample->transaction);
1239 tuple_set_d64(t, 18, es->sample->data_src);
1240 tuple_set_s32(t, 19, es->sample->flags & PERF_BRANCH_MASK);
1241 tuple_set_s32(t, 20, !!(es->sample->flags & PERF_IP_FLAG_IN_TX));
1242 tuple_set_d64(t, 21, es->call_path_id);
1243 tuple_set_d64(t, 22, es->sample->insn_cnt);
1244 tuple_set_d64(t, 23, es->sample->cyc_cnt);
1246 call_object(tables->sample_handler, t, "sample_table");
1251 static void python_export_synth(struct db_export *dbe, struct export_sample *es)
1253 struct tables *tables = container_of(dbe, struct tables, dbe);
1258 tuple_set_d64(t, 0, es->db_id);
1259 tuple_set_d64(t, 1, es->evsel->core.attr.config);
1260 tuple_set_bytes(t, 2, es->sample->raw_data, es->sample->raw_size);
1262 call_object(tables->synth_handler, t, "synth_data");
1267 static int python_export_sample(struct db_export *dbe,
1268 struct export_sample *es)
1270 struct tables *tables = container_of(dbe, struct tables, dbe);
1272 python_export_sample_table(dbe, es);
1274 if (es->evsel->core.attr.type == PERF_TYPE_SYNTH && tables->synth_handler)
1275 python_export_synth(dbe, es);
1280 static int python_export_call_path(struct db_export *dbe, struct call_path *cp)
1282 struct tables *tables = container_of(dbe, struct tables, dbe);
1284 u64 parent_db_id, sym_db_id;
1286 parent_db_id = cp->parent ? cp->parent->db_id : 0;
1287 sym_db_id = cp->sym ? *(u64 *)symbol__priv(cp->sym) : 0;
1291 tuple_set_d64(t, 0, cp->db_id);
1292 tuple_set_d64(t, 1, parent_db_id);
1293 tuple_set_d64(t, 2, sym_db_id);
1294 tuple_set_d64(t, 3, cp->ip);
1296 call_object(tables->call_path_handler, t, "call_path_table");
1303 static int python_export_call_return(struct db_export *dbe,
1304 struct call_return *cr)
1306 struct tables *tables = container_of(dbe, struct tables, dbe);
1307 u64 comm_db_id = cr->comm ? cr->comm->db_id : 0;
1312 tuple_set_d64(t, 0, cr->db_id);
1313 tuple_set_d64(t, 1, cr->thread->db_id);
1314 tuple_set_d64(t, 2, comm_db_id);
1315 tuple_set_d64(t, 3, cr->cp->db_id);
1316 tuple_set_d64(t, 4, cr->call_time);
1317 tuple_set_d64(t, 5, cr->return_time);
1318 tuple_set_d64(t, 6, cr->branch_count);
1319 tuple_set_d64(t, 7, cr->call_ref);
1320 tuple_set_d64(t, 8, cr->return_ref);
1321 tuple_set_d64(t, 9, cr->cp->parent->db_id);
1322 tuple_set_s32(t, 10, cr->flags);
1323 tuple_set_d64(t, 11, cr->parent_db_id);
1324 tuple_set_d64(t, 12, cr->insn_count);
1325 tuple_set_d64(t, 13, cr->cyc_count);
1327 call_object(tables->call_return_handler, t, "call_return_table");
1334 static int python_export_context_switch(struct db_export *dbe, u64 db_id,
1335 struct machine *machine,
1336 struct perf_sample *sample,
1337 u64 th_out_id, u64 comm_out_id,
1338 u64 th_in_id, u64 comm_in_id, int flags)
1340 struct tables *tables = container_of(dbe, struct tables, dbe);
1345 tuple_set_d64(t, 0, db_id);
1346 tuple_set_d64(t, 1, machine->db_id);
1347 tuple_set_d64(t, 2, sample->time);
1348 tuple_set_s32(t, 3, sample->cpu);
1349 tuple_set_d64(t, 4, th_out_id);
1350 tuple_set_d64(t, 5, comm_out_id);
1351 tuple_set_d64(t, 6, th_in_id);
1352 tuple_set_d64(t, 7, comm_in_id);
1353 tuple_set_s32(t, 8, flags);
1355 call_object(tables->context_switch_handler, t, "context_switch");
1362 static int python_process_call_return(struct call_return *cr, u64 *parent_db_id,
1365 struct db_export *dbe = data;
1367 return db_export__call_return(dbe, cr, parent_db_id);
1370 static void python_process_general_event(struct perf_sample *sample,
1371 struct evsel *evsel,
1372 struct addr_location *al,
1373 struct addr_location *addr_al)
1375 PyObject *handler, *t, *dict, *callchain;
1376 static char handler_name[64];
1379 snprintf(handler_name, sizeof(handler_name), "%s", "process_event");
1381 handler = get_handler(handler_name);
1386 * Use the MAX_FIELDS to make the function expandable, though
1387 * currently there is only one item for the tuple.
1389 t = PyTuple_New(MAX_FIELDS);
1391 Py_FatalError("couldn't create Python tuple");
1394 callchain = python_process_callchain(sample, evsel, al);
1395 dict = get_perf_sample_dict(sample, evsel, al, addr_al, callchain);
1397 PyTuple_SetItem(t, n++, dict);
1398 if (_PyTuple_Resize(&t, n) == -1)
1399 Py_FatalError("error resizing Python tuple");
1401 call_object(handler, t, handler_name);
1406 static void python_process_event(union perf_event *event,
1407 struct perf_sample *sample,
1408 struct evsel *evsel,
1409 struct addr_location *al,
1410 struct addr_location *addr_al)
1412 struct tables *tables = &tables_global;
1414 scripting_context__update(scripting_context, event, sample, evsel, al, addr_al);
1416 switch (evsel->core.attr.type) {
1417 case PERF_TYPE_TRACEPOINT:
1418 python_process_tracepoint(sample, evsel, al, addr_al);
1420 /* Reserve for future process_hw/sw/raw APIs */
1422 if (tables->db_export_mode)
1423 db_export__sample(&tables->dbe, event, sample, evsel, al, addr_al);
1425 python_process_general_event(sample, evsel, al, addr_al);
1429 static void python_process_throttle(union perf_event *event,
1430 struct perf_sample *sample,
1431 struct machine *machine)
1433 const char *handler_name;
1434 PyObject *handler, *t;
1436 if (event->header.type == PERF_RECORD_THROTTLE)
1437 handler_name = "throttle";
1439 handler_name = "unthrottle";
1440 handler = get_handler(handler_name);
1448 tuple_set_u64(t, 0, event->throttle.time);
1449 tuple_set_u64(t, 1, event->throttle.id);
1450 tuple_set_u64(t, 2, event->throttle.stream_id);
1451 tuple_set_s32(t, 3, sample->cpu);
1452 tuple_set_s32(t, 4, sample->pid);
1453 tuple_set_s32(t, 5, sample->tid);
1455 call_object(handler, t, handler_name);
1460 static void python_do_process_switch(union perf_event *event,
1461 struct perf_sample *sample,
1462 struct machine *machine)
1464 const char *handler_name = "context_switch";
1465 bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT;
1466 bool out_preempt = out && (event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT);
1467 pid_t np_pid = -1, np_tid = -1;
1468 PyObject *handler, *t;
1470 handler = get_handler(handler_name);
1474 if (event->header.type == PERF_RECORD_SWITCH_CPU_WIDE) {
1475 np_pid = event->context_switch.next_prev_pid;
1476 np_tid = event->context_switch.next_prev_tid;
1483 tuple_set_u64(t, 0, sample->time);
1484 tuple_set_s32(t, 1, sample->cpu);
1485 tuple_set_s32(t, 2, sample->pid);
1486 tuple_set_s32(t, 3, sample->tid);
1487 tuple_set_s32(t, 4, np_pid);
1488 tuple_set_s32(t, 5, np_tid);
1489 tuple_set_s32(t, 6, machine->pid);
1490 tuple_set_bool(t, 7, out);
1491 tuple_set_bool(t, 8, out_preempt);
1493 call_object(handler, t, handler_name);
1498 static void python_process_switch(union perf_event *event,
1499 struct perf_sample *sample,
1500 struct machine *machine)
1502 struct tables *tables = &tables_global;
1504 if (tables->db_export_mode)
1505 db_export__switch(&tables->dbe, event, sample, machine);
1507 python_do_process_switch(event, sample, machine);
1510 static void python_process_auxtrace_error(struct perf_session *session __maybe_unused,
1511 union perf_event *event)
1513 struct perf_record_auxtrace_error *e = &event->auxtrace_error;
1514 u8 cpumode = e->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
1515 const char *handler_name = "auxtrace_error";
1516 unsigned long long tm = e->time;
1517 const char *msg = e->msg;
1518 PyObject *handler, *t;
1520 handler = get_handler(handler_name);
1526 msg = (const char *)&e->time;
1531 tuple_set_u32(t, 0, e->type);
1532 tuple_set_u32(t, 1, e->code);
1533 tuple_set_s32(t, 2, e->cpu);
1534 tuple_set_s32(t, 3, e->pid);
1535 tuple_set_s32(t, 4, e->tid);
1536 tuple_set_u64(t, 5, e->ip);
1537 tuple_set_u64(t, 6, tm);
1538 tuple_set_string(t, 7, msg);
1539 tuple_set_u32(t, 8, cpumode);
1541 call_object(handler, t, handler_name);
1546 static void get_handler_name(char *str, size_t size,
1547 struct evsel *evsel)
1551 scnprintf(str, size, "stat__%s", evsel__name(evsel));
1553 while ((p = strchr(p, ':'))) {
1560 process_stat(struct evsel *counter, struct perf_cpu cpu, int thread, u64 tstamp,
1561 struct perf_counts_values *count)
1563 PyObject *handler, *t;
1564 static char handler_name[256];
1567 t = PyTuple_New(MAX_FIELDS);
1569 Py_FatalError("couldn't create Python tuple");
1571 get_handler_name(handler_name, sizeof(handler_name),
1574 handler = get_handler(handler_name);
1576 pr_debug("can't find python handler %s\n", handler_name);
1580 PyTuple_SetItem(t, n++, _PyLong_FromLong(cpu.cpu));
1581 PyTuple_SetItem(t, n++, _PyLong_FromLong(thread));
1583 tuple_set_u64(t, n++, tstamp);
1584 tuple_set_u64(t, n++, count->val);
1585 tuple_set_u64(t, n++, count->ena);
1586 tuple_set_u64(t, n++, count->run);
1588 if (_PyTuple_Resize(&t, n) == -1)
1589 Py_FatalError("error resizing Python tuple");
1591 call_object(handler, t, handler_name);
1596 static void python_process_stat(struct perf_stat_config *config,
1597 struct evsel *counter, u64 tstamp)
1599 struct perf_thread_map *threads = counter->core.threads;
1600 struct perf_cpu_map *cpus = counter->core.cpus;
1603 if (config->aggr_mode == AGGR_GLOBAL) {
1604 process_stat(counter, (struct perf_cpu){ .cpu = -1 }, -1, tstamp,
1605 &counter->counts->aggr);
1609 for (thread = 0; thread < threads->nr; thread++) {
1610 for (cpu = 0; cpu < perf_cpu_map__nr(cpus); cpu++) {
1611 process_stat(counter, perf_cpu_map__cpu(cpus, cpu),
1612 perf_thread_map__pid(threads, thread), tstamp,
1613 perf_counts(counter->counts, cpu, thread));
1618 static void python_process_stat_interval(u64 tstamp)
1620 PyObject *handler, *t;
1621 static const char handler_name[] = "stat__interval";
1624 t = PyTuple_New(MAX_FIELDS);
1626 Py_FatalError("couldn't create Python tuple");
1628 handler = get_handler(handler_name);
1630 pr_debug("can't find python handler %s\n", handler_name);
1634 tuple_set_u64(t, n++, tstamp);
1636 if (_PyTuple_Resize(&t, n) == -1)
1637 Py_FatalError("error resizing Python tuple");
1639 call_object(handler, t, handler_name);
1644 static int perf_script_context_init(void)
1646 PyObject *perf_script_context;
1647 PyObject *perf_trace_context;
1651 perf_trace_context = PyImport_AddModule("perf_trace_context");
1652 if (!perf_trace_context)
1654 dict = PyModule_GetDict(perf_trace_context);
1658 perf_script_context = _PyCapsule_New(scripting_context, NULL, NULL);
1659 if (!perf_script_context)
1662 ret = PyDict_SetItemString(dict, "perf_script_context", perf_script_context);
1664 ret = PyDict_SetItemString(main_dict, "perf_script_context", perf_script_context);
1665 Py_DECREF(perf_script_context);
1669 static int run_start_sub(void)
1671 main_module = PyImport_AddModule("__main__");
1672 if (main_module == NULL)
1674 Py_INCREF(main_module);
1676 main_dict = PyModule_GetDict(main_module);
1677 if (main_dict == NULL)
1679 Py_INCREF(main_dict);
1681 if (perf_script_context_init())
1684 try_call_object("trace_begin", NULL);
1689 Py_XDECREF(main_dict);
1690 Py_XDECREF(main_module);
1694 #define SET_TABLE_HANDLER_(name, handler_name, table_name) do { \
1695 tables->handler_name = get_handler(#table_name); \
1696 if (tables->handler_name) \
1697 tables->dbe.export_ ## name = python_export_ ## name; \
1700 #define SET_TABLE_HANDLER(name) \
1701 SET_TABLE_HANDLER_(name, name ## _handler, name ## _table)
1703 static void set_table_handlers(struct tables *tables)
1705 const char *perf_db_export_mode = "perf_db_export_mode";
1706 const char *perf_db_export_calls = "perf_db_export_calls";
1707 const char *perf_db_export_callchains = "perf_db_export_callchains";
1708 PyObject *db_export_mode, *db_export_calls, *db_export_callchains;
1709 bool export_calls = false;
1710 bool export_callchains = false;
1713 memset(tables, 0, sizeof(struct tables));
1714 if (db_export__init(&tables->dbe))
1715 Py_FatalError("failed to initialize export");
1717 db_export_mode = PyDict_GetItemString(main_dict, perf_db_export_mode);
1718 if (!db_export_mode)
1721 ret = PyObject_IsTrue(db_export_mode);
1723 handler_call_die(perf_db_export_mode);
1727 /* handle export calls */
1728 tables->dbe.crp = NULL;
1729 db_export_calls = PyDict_GetItemString(main_dict, perf_db_export_calls);
1730 if (db_export_calls) {
1731 ret = PyObject_IsTrue(db_export_calls);
1733 handler_call_die(perf_db_export_calls);
1734 export_calls = !!ret;
1739 call_return_processor__new(python_process_call_return,
1741 if (!tables->dbe.crp)
1742 Py_FatalError("failed to create calls processor");
1745 /* handle export callchains */
1746 tables->dbe.cpr = NULL;
1747 db_export_callchains = PyDict_GetItemString(main_dict,
1748 perf_db_export_callchains);
1749 if (db_export_callchains) {
1750 ret = PyObject_IsTrue(db_export_callchains);
1752 handler_call_die(perf_db_export_callchains);
1753 export_callchains = !!ret;
1756 if (export_callchains) {
1758 * Attempt to use the call path root from the call return
1759 * processor, if the call return processor is in use. Otherwise,
1760 * we allocate a new call path root. This prevents exporting
1761 * duplicate call path ids when both are in use simultaneously.
1763 if (tables->dbe.crp)
1764 tables->dbe.cpr = tables->dbe.crp->cpr;
1766 tables->dbe.cpr = call_path_root__new();
1768 if (!tables->dbe.cpr)
1769 Py_FatalError("failed to create call path root");
1772 tables->db_export_mode = true;
1774 * Reserve per symbol space for symbol->db_id via symbol__priv()
1776 symbol_conf.priv_size = sizeof(u64);
1778 SET_TABLE_HANDLER(evsel);
1779 SET_TABLE_HANDLER(machine);
1780 SET_TABLE_HANDLER(thread);
1781 SET_TABLE_HANDLER(comm);
1782 SET_TABLE_HANDLER(comm_thread);
1783 SET_TABLE_HANDLER(dso);
1784 SET_TABLE_HANDLER(symbol);
1785 SET_TABLE_HANDLER(branch_type);
1786 SET_TABLE_HANDLER(sample);
1787 SET_TABLE_HANDLER(call_path);
1788 SET_TABLE_HANDLER(call_return);
1789 SET_TABLE_HANDLER(context_switch);
1792 * Synthesized events are samples but with architecture-specific data
1793 * stored in sample->raw_data. They are exported via
1794 * python_export_sample() and consequently do not need a separate export
1797 tables->synth_handler = get_handler("synth_data");
1800 #if PY_MAJOR_VERSION < 3
1801 static void _free_command_line(const char **command_line, int num)
1806 static void _free_command_line(wchar_t **command_line, int num)
1809 for (i = 0; i < num; i++)
1810 PyMem_RawFree(command_line[i]);
1817 * Start trace script
1819 static int python_start_script(const char *script, int argc, const char **argv,
1820 struct perf_session *session)
1822 struct tables *tables = &tables_global;
1823 #if PY_MAJOR_VERSION < 3
1824 const char **command_line;
1826 wchar_t **command_line;
1829 * Use a non-const name variable to cope with python 2.6's
1830 * PyImport_AppendInittab prototype
1832 char buf[PATH_MAX], name[19] = "perf_trace_context";
1836 scripting_context->session = session;
1837 #if PY_MAJOR_VERSION < 3
1838 command_line = malloc((argc + 1) * sizeof(const char *));
1839 command_line[0] = script;
1840 for (i = 1; i < argc + 1; i++)
1841 command_line[i] = argv[i - 1];
1842 PyImport_AppendInittab(name, initperf_trace_context);
1844 command_line = malloc((argc + 1) * sizeof(wchar_t *));
1845 command_line[0] = Py_DecodeLocale(script, NULL);
1846 for (i = 1; i < argc + 1; i++)
1847 command_line[i] = Py_DecodeLocale(argv[i - 1], NULL);
1848 PyImport_AppendInittab(name, PyInit_perf_trace_context);
1852 #if PY_MAJOR_VERSION < 3
1853 PySys_SetArgv(argc + 1, (char **)command_line);
1855 PySys_SetArgv(argc + 1, command_line);
1858 fp = fopen(script, "r");
1860 sprintf(buf, "Can't open python script \"%s\"", script);
1866 err = PyRun_SimpleFile(fp, script);
1868 fprintf(stderr, "Error running python script %s\n", script);
1872 err = run_start_sub();
1874 fprintf(stderr, "Error starting python script %s\n", script);
1878 set_table_handlers(tables);
1880 if (tables->db_export_mode) {
1881 err = db_export__branch_types(&tables->dbe);
1886 _free_command_line(command_line, argc + 1);
1891 _free_command_line(command_line, argc + 1);
1896 static int python_flush_script(void)
1904 static int python_stop_script(void)
1906 struct tables *tables = &tables_global;
1908 try_call_object("trace_end", NULL);
1910 db_export__exit(&tables->dbe);
1912 Py_XDECREF(main_dict);
1913 Py_XDECREF(main_module);
1919 static int python_generate_script(struct tep_handle *pevent, const char *outfile)
1921 int i, not_first, count, nr_events;
1922 struct tep_event **all_events;
1923 struct tep_event *event = NULL;
1924 struct tep_format_field *f;
1925 char fname[PATH_MAX];
1928 sprintf(fname, "%s.py", outfile);
1929 ofp = fopen(fname, "w");
1931 fprintf(stderr, "couldn't open %s\n", fname);
1934 fprintf(ofp, "# perf script event handlers, "
1935 "generated by perf script -g python\n");
1937 fprintf(ofp, "# Licensed under the terms of the GNU GPL"
1938 " License version 2\n\n");
1940 fprintf(ofp, "# The common_* event handler fields are the most useful "
1941 "fields common to\n");
1943 fprintf(ofp, "# all events. They don't necessarily correspond to "
1944 "the 'common_*' fields\n");
1946 fprintf(ofp, "# in the format files. Those fields not available as "
1947 "handler params can\n");
1949 fprintf(ofp, "# be retrieved using Python functions of the form "
1950 "common_*(context).\n");
1952 fprintf(ofp, "# See the perf-script-python Documentation for the list "
1953 "of available functions.\n\n");
1955 fprintf(ofp, "from __future__ import print_function\n\n");
1956 fprintf(ofp, "import os\n");
1957 fprintf(ofp, "import sys\n\n");
1959 fprintf(ofp, "sys.path.append(os.environ['PERF_EXEC_PATH'] + \\\n");
1960 fprintf(ofp, "\t'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')\n");
1961 fprintf(ofp, "\nfrom perf_trace_context import *\n");
1962 fprintf(ofp, "from Core import *\n\n\n");
1964 fprintf(ofp, "def trace_begin():\n");
1965 fprintf(ofp, "\tprint(\"in trace_begin\")\n\n");
1967 fprintf(ofp, "def trace_end():\n");
1968 fprintf(ofp, "\tprint(\"in trace_end\")\n\n");
1970 nr_events = tep_get_events_count(pevent);
1971 all_events = tep_list_events(pevent, TEP_EVENT_SORT_ID);
1973 for (i = 0; all_events && i < nr_events; i++) {
1974 event = all_events[i];
1975 fprintf(ofp, "def %s__%s(", event->system, event->name);
1976 fprintf(ofp, "event_name, ");
1977 fprintf(ofp, "context, ");
1978 fprintf(ofp, "common_cpu,\n");
1979 fprintf(ofp, "\tcommon_secs, ");
1980 fprintf(ofp, "common_nsecs, ");
1981 fprintf(ofp, "common_pid, ");
1982 fprintf(ofp, "common_comm,\n\t");
1983 fprintf(ofp, "common_callchain, ");
1988 for (f = event->format.fields; f; f = f->next) {
1991 if (++count % 5 == 0)
1992 fprintf(ofp, "\n\t");
1994 fprintf(ofp, "%s", f->name);
1998 if (++count % 5 == 0)
1999 fprintf(ofp, "\n\t\t");
2000 fprintf(ofp, "perf_sample_dict");
2002 fprintf(ofp, "):\n");
2004 fprintf(ofp, "\t\tprint_header(event_name, common_cpu, "
2005 "common_secs, common_nsecs,\n\t\t\t"
2006 "common_pid, common_comm)\n\n");
2008 fprintf(ofp, "\t\tprint(\"");
2013 for (f = event->format.fields; f; f = f->next) {
2016 if (count && count % 3 == 0) {
2017 fprintf(ofp, "\" \\\n\t\t\"");
2021 fprintf(ofp, "%s=", f->name);
2022 if (f->flags & TEP_FIELD_IS_STRING ||
2023 f->flags & TEP_FIELD_IS_FLAG ||
2024 f->flags & TEP_FIELD_IS_ARRAY ||
2025 f->flags & TEP_FIELD_IS_SYMBOLIC)
2026 fprintf(ofp, "%%s");
2027 else if (f->flags & TEP_FIELD_IS_SIGNED)
2028 fprintf(ofp, "%%d");
2030 fprintf(ofp, "%%u");
2033 fprintf(ofp, "\" %% \\\n\t\t(");
2038 for (f = event->format.fields; f; f = f->next) {
2042 if (++count % 5 == 0)
2043 fprintf(ofp, "\n\t\t");
2045 if (f->flags & TEP_FIELD_IS_FLAG) {
2046 if ((count - 1) % 5 != 0) {
2047 fprintf(ofp, "\n\t\t");
2050 fprintf(ofp, "flag_str(\"");
2051 fprintf(ofp, "%s__%s\", ", event->system,
2053 fprintf(ofp, "\"%s\", %s)", f->name,
2055 } else if (f->flags & TEP_FIELD_IS_SYMBOLIC) {
2056 if ((count - 1) % 5 != 0) {
2057 fprintf(ofp, "\n\t\t");
2060 fprintf(ofp, "symbol_str(\"");
2061 fprintf(ofp, "%s__%s\", ", event->system,
2063 fprintf(ofp, "\"%s\", %s)", f->name,
2066 fprintf(ofp, "%s", f->name);
2069 fprintf(ofp, "))\n\n");
2071 fprintf(ofp, "\t\tprint('Sample: {'+"
2072 "get_dict_as_string(perf_sample_dict['sample'], ', ')+'}')\n\n");
2074 fprintf(ofp, "\t\tfor node in common_callchain:");
2075 fprintf(ofp, "\n\t\t\tif 'sym' in node:");
2076 fprintf(ofp, "\n\t\t\t\tprint(\"\\t[%%x] %%s\" %% (node['ip'], node['sym']['name']))");
2077 fprintf(ofp, "\n\t\t\telse:");
2078 fprintf(ofp, "\n\t\t\t\tprint(\"\t[%%x]\" %% (node['ip']))\n\n");
2079 fprintf(ofp, "\t\tprint()\n\n");
2083 fprintf(ofp, "def trace_unhandled(event_name, context, "
2084 "event_fields_dict, perf_sample_dict):\n");
2086 fprintf(ofp, "\t\tprint(get_dict_as_string(event_fields_dict))\n");
2087 fprintf(ofp, "\t\tprint('Sample: {'+"
2088 "get_dict_as_string(perf_sample_dict['sample'], ', ')+'}')\n\n");
2090 fprintf(ofp, "def print_header("
2091 "event_name, cpu, secs, nsecs, pid, comm):\n"
2092 "\tprint(\"%%-20s %%5u %%05u.%%09u %%8u %%-20s \" %% \\\n\t"
2093 "(event_name, cpu, secs, nsecs, pid, comm), end=\"\")\n\n");
2095 fprintf(ofp, "def get_dict_as_string(a_dict, delimiter=' '):\n"
2096 "\treturn delimiter.join"
2097 "(['%%s=%%s'%%(k,str(v))for k,v in sorted(a_dict.items())])\n");
2101 fprintf(stderr, "generated Python script: %s\n", fname);
2106 struct scripting_ops python_scripting_ops = {
2108 .dirname = "python",
2109 .start_script = python_start_script,
2110 .flush_script = python_flush_script,
2111 .stop_script = python_stop_script,
2112 .process_event = python_process_event,
2113 .process_switch = python_process_switch,
2114 .process_auxtrace_error = python_process_auxtrace_error,
2115 .process_stat = python_process_stat,
2116 .process_stat_interval = python_process_stat_interval,
2117 .process_throttle = python_process_throttle,
2118 .generate_script = python_generate_script,