v4.19.13 snapshot.
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
new file mode 100644
index 0000000..dfc6093
--- /dev/null
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -0,0 +1,1782 @@
+/*
+ * trace-event-python. Feed trace events to an embedded Python interpreter.
+ *
+ * Copyright (C) 2010 Tom Zanussi <tzanussi@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <Python.h>
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <linux/bitmap.h>
+#include <linux/compiler.h>
+#include <linux/time64.h>
+
+#include "../../perf.h"
+#include "../debug.h"
+#include "../callchain.h"
+#include "../evsel.h"
+#include "../util.h"
+#include "../event.h"
+#include "../thread.h"
+#include "../comm.h"
+#include "../machine.h"
+#include "../db-export.h"
+#include "../thread-stack.h"
+#include "../trace-event.h"
+#include "../call-path.h"
+#include "thread_map.h"
+#include "cpumap.h"
+#include "print_binary.h"
+#include "stat.h"
+#include "mem-events.h"
+
+#if PY_MAJOR_VERSION < 3
+#define _PyUnicode_FromString(arg) \
+ PyString_FromString(arg)
+#define _PyUnicode_FromStringAndSize(arg1, arg2) \
+ PyString_FromStringAndSize((arg1), (arg2))
+#define _PyBytes_FromStringAndSize(arg1, arg2) \
+ PyString_FromStringAndSize((arg1), (arg2))
+#define _PyLong_FromLong(arg) \
+ PyInt_FromLong(arg)
+#define _PyLong_AsLong(arg) \
+ PyInt_AsLong(arg)
+#define _PyCapsule_New(arg1, arg2, arg3) \
+ PyCObject_FromVoidPtr((arg1), (arg2))
+
+PyMODINIT_FUNC initperf_trace_context(void);
+#else
+#define _PyUnicode_FromString(arg) \
+ PyUnicode_FromString(arg)
+#define _PyUnicode_FromStringAndSize(arg1, arg2) \
+ PyUnicode_FromStringAndSize((arg1), (arg2))
+#define _PyBytes_FromStringAndSize(arg1, arg2) \
+ PyBytes_FromStringAndSize((arg1), (arg2))
+#define _PyLong_FromLong(arg) \
+ PyLong_FromLong(arg)
+#define _PyLong_AsLong(arg) \
+ PyLong_AsLong(arg)
+#define _PyCapsule_New(arg1, arg2, arg3) \
+ PyCapsule_New((arg1), (arg2), (arg3))
+
+PyMODINIT_FUNC PyInit_perf_trace_context(void);
+#endif
+
+#define TRACE_EVENT_TYPE_MAX \
+ ((1 << (sizeof(unsigned short) * 8)) - 1)
+
+static DECLARE_BITMAP(events_defined, TRACE_EVENT_TYPE_MAX);
+
+#define MAX_FIELDS 64
+#define N_COMMON_FIELDS 7
+
+extern struct scripting_context *scripting_context;
+
+static char *cur_field_name;
+static int zero_flag_atom;
+
+static PyObject *main_module, *main_dict;
+
+struct tables {
+ struct db_export dbe;
+ PyObject *evsel_handler;
+ PyObject *machine_handler;
+ PyObject *thread_handler;
+ PyObject *comm_handler;
+ PyObject *comm_thread_handler;
+ PyObject *dso_handler;
+ PyObject *symbol_handler;
+ PyObject *branch_type_handler;
+ PyObject *sample_handler;
+ PyObject *call_path_handler;
+ PyObject *call_return_handler;
+ bool db_export_mode;
+};
+
+static struct tables tables_global;
+
+static void handler_call_die(const char *handler_name) __noreturn;
+static void handler_call_die(const char *handler_name)
+{
+ PyErr_Print();
+ Py_FatalError("problem in Python trace event handler");
+ // Py_FatalError does not return
+ // but we have to make the compiler happy
+ abort();
+}
+
+/*
+ * Insert val into into the dictionary and decrement the reference counter.
+ * This is necessary for dictionaries since PyDict_SetItemString() does not
+ * steal a reference, as opposed to PyTuple_SetItem().
+ */
+static void pydict_set_item_string_decref(PyObject *dict, const char *key, PyObject *val)
+{
+ PyDict_SetItemString(dict, key, val);
+ Py_DECREF(val);
+}
+
+static PyObject *get_handler(const char *handler_name)
+{
+ PyObject *handler;
+
+ handler = PyDict_GetItemString(main_dict, handler_name);
+ if (handler && !PyCallable_Check(handler))
+ return NULL;
+ return handler;
+}
+
+static int get_argument_count(PyObject *handler)
+{
+ int arg_count = 0;
+
+ /*
+ * The attribute for the code object is func_code in Python 2,
+ * whereas it is __code__ in Python 3.0+.
+ */
+ PyObject *code_obj = PyObject_GetAttrString(handler,
+ "func_code");
+ if (PyErr_Occurred()) {
+ PyErr_Clear();
+ code_obj = PyObject_GetAttrString(handler,
+ "__code__");
+ }
+ PyErr_Clear();
+ if (code_obj) {
+ PyObject *arg_count_obj = PyObject_GetAttrString(code_obj,
+ "co_argcount");
+ if (arg_count_obj) {
+ arg_count = (int) _PyLong_AsLong(arg_count_obj);
+ Py_DECREF(arg_count_obj);
+ }
+ Py_DECREF(code_obj);
+ }
+ return arg_count;
+}
+
+static void call_object(PyObject *handler, PyObject *args, const char *die_msg)
+{
+ PyObject *retval;
+
+ retval = PyObject_CallObject(handler, args);
+ if (retval == NULL)
+ handler_call_die(die_msg);
+ Py_DECREF(retval);
+}
+
+static void try_call_object(const char *handler_name, PyObject *args)
+{
+ PyObject *handler;
+
+ handler = get_handler(handler_name);
+ if (handler)
+ call_object(handler, args, handler_name);
+}
+
+static void define_value(enum print_arg_type field_type,
+ const char *ev_name,
+ const char *field_name,
+ const char *field_value,
+ const char *field_str)
+{
+ const char *handler_name = "define_flag_value";
+ PyObject *t;
+ unsigned long long value;
+ unsigned n = 0;
+
+ if (field_type == PRINT_SYMBOL)
+ handler_name = "define_symbolic_value";
+
+ t = PyTuple_New(4);
+ if (!t)
+ Py_FatalError("couldn't create Python tuple");
+
+ value = eval_flag(field_value);
+
+ PyTuple_SetItem(t, n++, _PyUnicode_FromString(ev_name));
+ PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_name));
+ PyTuple_SetItem(t, n++, _PyLong_FromLong(value));
+ PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_str));
+
+ try_call_object(handler_name, t);
+
+ Py_DECREF(t);
+}
+
+static void define_values(enum print_arg_type field_type,
+ struct print_flag_sym *field,
+ const char *ev_name,
+ const char *field_name)
+{
+ define_value(field_type, ev_name, field_name, field->value,
+ field->str);
+
+ if (field->next)
+ define_values(field_type, field->next, ev_name, field_name);
+}
+
+static void define_field(enum print_arg_type field_type,
+ const char *ev_name,
+ const char *field_name,
+ const char *delim)
+{
+ const char *handler_name = "define_flag_field";
+ PyObject *t;
+ unsigned n = 0;
+
+ if (field_type == PRINT_SYMBOL)
+ handler_name = "define_symbolic_field";
+
+ if (field_type == PRINT_FLAGS)
+ t = PyTuple_New(3);
+ else
+ t = PyTuple_New(2);
+ if (!t)
+ Py_FatalError("couldn't create Python tuple");
+
+ PyTuple_SetItem(t, n++, _PyUnicode_FromString(ev_name));
+ PyTuple_SetItem(t, n++, _PyUnicode_FromString(field_name));
+ if (field_type == PRINT_FLAGS)
+ PyTuple_SetItem(t, n++, _PyUnicode_FromString(delim));
+
+ try_call_object(handler_name, t);
+
+ Py_DECREF(t);
+}
+
+static void define_event_symbols(struct event_format *event,
+ const char *ev_name,
+ struct print_arg *args)
+{
+ if (args == NULL)
+ return;
+
+ switch (args->type) {
+ case PRINT_NULL:
+ break;
+ case PRINT_ATOM:
+ define_value(PRINT_FLAGS, ev_name, cur_field_name, "0",
+ args->atom.atom);
+ zero_flag_atom = 0;
+ break;
+ case PRINT_FIELD:
+ free(cur_field_name);
+ cur_field_name = strdup(args->field.name);
+ break;
+ case PRINT_FLAGS:
+ define_event_symbols(event, ev_name, args->flags.field);
+ define_field(PRINT_FLAGS, ev_name, cur_field_name,
+ args->flags.delim);
+ define_values(PRINT_FLAGS, args->flags.flags, ev_name,
+ cur_field_name);
+ break;
+ case PRINT_SYMBOL:
+ define_event_symbols(event, ev_name, args->symbol.field);
+ define_field(PRINT_SYMBOL, ev_name, cur_field_name, NULL);
+ define_values(PRINT_SYMBOL, args->symbol.symbols, ev_name,
+ cur_field_name);
+ break;
+ case PRINT_HEX:
+ case PRINT_HEX_STR:
+ define_event_symbols(event, ev_name, args->hex.field);
+ define_event_symbols(event, ev_name, args->hex.size);
+ break;
+ case PRINT_INT_ARRAY:
+ define_event_symbols(event, ev_name, args->int_array.field);
+ define_event_symbols(event, ev_name, args->int_array.count);
+ define_event_symbols(event, ev_name, args->int_array.el_size);
+ break;
+ case PRINT_STRING:
+ break;
+ case PRINT_TYPE:
+ define_event_symbols(event, ev_name, args->typecast.item);
+ break;
+ case PRINT_OP:
+ if (strcmp(args->op.op, ":") == 0)
+ zero_flag_atom = 1;
+ define_event_symbols(event, ev_name, args->op.left);
+ define_event_symbols(event, ev_name, args->op.right);
+ break;
+ default:
+ /* gcc warns for these? */
+ case PRINT_BSTRING:
+ case PRINT_DYNAMIC_ARRAY:
+ case PRINT_DYNAMIC_ARRAY_LEN:
+ case PRINT_FUNC:
+ case PRINT_BITMASK:
+ /* we should warn... */
+ return;
+ }
+
+ if (args->next)
+ define_event_symbols(event, ev_name, args->next);
+}
+
+static PyObject *get_field_numeric_entry(struct event_format *event,
+ struct format_field *field, void *data)
+{
+ bool is_array = field->flags & FIELD_IS_ARRAY;
+ PyObject *obj = NULL, *list = NULL;
+ unsigned long long val;
+ unsigned int item_size, n_items, i;
+
+ if (is_array) {
+ list = PyList_New(field->arraylen);
+ item_size = field->size / field->arraylen;
+ n_items = field->arraylen;
+ } else {
+ item_size = field->size;
+ n_items = 1;
+ }
+
+ for (i = 0; i < n_items; i++) {
+
+ val = read_size(event, data + field->offset + i * item_size,
+ item_size);
+ if (field->flags & FIELD_IS_SIGNED) {
+ if ((long long)val >= LONG_MIN &&
+ (long long)val <= LONG_MAX)
+ obj = _PyLong_FromLong(val);
+ else
+ obj = PyLong_FromLongLong(val);
+ } else {
+ if (val <= LONG_MAX)
+ obj = _PyLong_FromLong(val);
+ else
+ obj = PyLong_FromUnsignedLongLong(val);
+ }
+ if (is_array)
+ PyList_SET_ITEM(list, i, obj);
+ }
+ if (is_array)
+ obj = list;
+ return obj;
+}
+
+static const char *get_dsoname(struct map *map)
+{
+ const char *dsoname = "[unknown]";
+
+ if (map && map->dso) {
+ if (symbol_conf.show_kernel_path && map->dso->long_name)
+ dsoname = map->dso->long_name;
+ else
+ dsoname = map->dso->name;
+ }
+
+ return dsoname;
+}
+
+static PyObject *python_process_callchain(struct perf_sample *sample,
+ struct perf_evsel *evsel,
+ struct addr_location *al)
+{
+ PyObject *pylist;
+
+ pylist = PyList_New(0);
+ if (!pylist)
+ Py_FatalError("couldn't create Python list");
+
+ if (!symbol_conf.use_callchain || !sample->callchain)
+ goto exit;
+
+ if (thread__resolve_callchain(al->thread, &callchain_cursor, evsel,
+ sample, NULL, NULL,
+ scripting_max_stack) != 0) {
+ pr_err("Failed to resolve callchain. Skipping\n");
+ goto exit;
+ }
+ callchain_cursor_commit(&callchain_cursor);
+
+
+ while (1) {
+ PyObject *pyelem;
+ struct callchain_cursor_node *node;
+ node = callchain_cursor_current(&callchain_cursor);
+ if (!node)
+ break;
+
+ pyelem = PyDict_New();
+ if (!pyelem)
+ Py_FatalError("couldn't create Python dictionary");
+
+
+ pydict_set_item_string_decref(pyelem, "ip",
+ PyLong_FromUnsignedLongLong(node->ip));
+
+ if (node->sym) {
+ PyObject *pysym = PyDict_New();
+ if (!pysym)
+ Py_FatalError("couldn't create Python dictionary");
+ pydict_set_item_string_decref(pysym, "start",
+ PyLong_FromUnsignedLongLong(node->sym->start));
+ pydict_set_item_string_decref(pysym, "end",
+ PyLong_FromUnsignedLongLong(node->sym->end));
+ pydict_set_item_string_decref(pysym, "binding",
+ _PyLong_FromLong(node->sym->binding));
+ pydict_set_item_string_decref(pysym, "name",
+ _PyUnicode_FromStringAndSize(node->sym->name,
+ node->sym->namelen));
+ pydict_set_item_string_decref(pyelem, "sym", pysym);
+ }
+
+ if (node->map) {
+ const char *dsoname = get_dsoname(node->map);
+
+ pydict_set_item_string_decref(pyelem, "dso",
+ _PyUnicode_FromString(dsoname));
+ }
+
+ callchain_cursor_advance(&callchain_cursor);
+ PyList_Append(pylist, pyelem);
+ Py_DECREF(pyelem);
+ }
+
+exit:
+ return pylist;
+}
+
+static PyObject *python_process_brstack(struct perf_sample *sample,
+ struct thread *thread)
+{
+ struct branch_stack *br = sample->branch_stack;
+ PyObject *pylist;
+ u64 i;
+
+ pylist = PyList_New(0);
+ if (!pylist)
+ Py_FatalError("couldn't create Python list");
+
+ if (!(br && br->nr))
+ goto exit;
+
+ for (i = 0; i < br->nr; i++) {
+ PyObject *pyelem;
+ struct addr_location al;
+ const char *dsoname;
+
+ pyelem = PyDict_New();
+ if (!pyelem)
+ Py_FatalError("couldn't create Python dictionary");
+
+ pydict_set_item_string_decref(pyelem, "from",
+ PyLong_FromUnsignedLongLong(br->entries[i].from));
+ pydict_set_item_string_decref(pyelem, "to",
+ PyLong_FromUnsignedLongLong(br->entries[i].to));
+ pydict_set_item_string_decref(pyelem, "mispred",
+ PyBool_FromLong(br->entries[i].flags.mispred));
+ pydict_set_item_string_decref(pyelem, "predicted",
+ PyBool_FromLong(br->entries[i].flags.predicted));
+ pydict_set_item_string_decref(pyelem, "in_tx",
+ PyBool_FromLong(br->entries[i].flags.in_tx));
+ pydict_set_item_string_decref(pyelem, "abort",
+ PyBool_FromLong(br->entries[i].flags.abort));
+ pydict_set_item_string_decref(pyelem, "cycles",
+ PyLong_FromUnsignedLongLong(br->entries[i].flags.cycles));
+
+ thread__find_map(thread, sample->cpumode,
+ br->entries[i].from, &al);
+ dsoname = get_dsoname(al.map);
+ pydict_set_item_string_decref(pyelem, "from_dsoname",
+ _PyUnicode_FromString(dsoname));
+
+ thread__find_map(thread, sample->cpumode,
+ br->entries[i].to, &al);
+ dsoname = get_dsoname(al.map);
+ pydict_set_item_string_decref(pyelem, "to_dsoname",
+ _PyUnicode_FromString(dsoname));
+
+ PyList_Append(pylist, pyelem);
+ Py_DECREF(pyelem);
+ }
+
+exit:
+ return pylist;
+}
+
+static unsigned long get_offset(struct symbol *sym, struct addr_location *al)
+{
+ unsigned long offset;
+
+ if (al->addr < sym->end)
+ offset = al->addr - sym->start;
+ else
+ offset = al->addr - al->map->start - sym->start;
+
+ return offset;
+}
+
+static int get_symoff(struct symbol *sym, struct addr_location *al,
+ bool print_off, char *bf, int size)
+{
+ unsigned long offset;
+
+ if (!sym || !sym->name[0])
+ return scnprintf(bf, size, "%s", "[unknown]");
+
+ if (!print_off)
+ return scnprintf(bf, size, "%s", sym->name);
+
+ offset = get_offset(sym, al);
+
+ return scnprintf(bf, size, "%s+0x%x", sym->name, offset);
+}
+
+static int get_br_mspred(struct branch_flags *flags, char *bf, int size)
+{
+ if (!flags->mispred && !flags->predicted)
+ return scnprintf(bf, size, "%s", "-");
+
+ if (flags->mispred)
+ return scnprintf(bf, size, "%s", "M");
+
+ return scnprintf(bf, size, "%s", "P");
+}
+
+static PyObject *python_process_brstacksym(struct perf_sample *sample,
+ struct thread *thread)
+{
+ struct branch_stack *br = sample->branch_stack;
+ PyObject *pylist;
+ u64 i;
+ char bf[512];
+ struct addr_location al;
+
+ pylist = PyList_New(0);
+ if (!pylist)
+ Py_FatalError("couldn't create Python list");
+
+ if (!(br && br->nr))
+ goto exit;
+
+ for (i = 0; i < br->nr; i++) {
+ PyObject *pyelem;
+
+ pyelem = PyDict_New();
+ if (!pyelem)
+ Py_FatalError("couldn't create Python dictionary");
+
+ thread__find_symbol(thread, sample->cpumode,
+ br->entries[i].from, &al);
+ get_symoff(al.sym, &al, true, bf, sizeof(bf));
+ pydict_set_item_string_decref(pyelem, "from",
+ _PyUnicode_FromString(bf));
+
+ thread__find_symbol(thread, sample->cpumode,
+ br->entries[i].to, &al);
+ get_symoff(al.sym, &al, true, bf, sizeof(bf));
+ pydict_set_item_string_decref(pyelem, "to",
+ _PyUnicode_FromString(bf));
+
+ get_br_mspred(&br->entries[i].flags, bf, sizeof(bf));
+ pydict_set_item_string_decref(pyelem, "pred",
+ _PyUnicode_FromString(bf));
+
+ if (br->entries[i].flags.in_tx) {
+ pydict_set_item_string_decref(pyelem, "in_tx",
+ _PyUnicode_FromString("X"));
+ } else {
+ pydict_set_item_string_decref(pyelem, "in_tx",
+ _PyUnicode_FromString("-"));
+ }
+
+ if (br->entries[i].flags.abort) {
+ pydict_set_item_string_decref(pyelem, "abort",
+ _PyUnicode_FromString("A"));
+ } else {
+ pydict_set_item_string_decref(pyelem, "abort",
+ _PyUnicode_FromString("-"));
+ }
+
+ PyList_Append(pylist, pyelem);
+ Py_DECREF(pyelem);
+ }
+
+exit:
+ return pylist;
+}
+
+static PyObject *get_sample_value_as_tuple(struct sample_read_value *value)
+{
+ PyObject *t;
+
+ t = PyTuple_New(2);
+ if (!t)
+ Py_FatalError("couldn't create Python tuple");
+ PyTuple_SetItem(t, 0, PyLong_FromUnsignedLongLong(value->id));
+ PyTuple_SetItem(t, 1, PyLong_FromUnsignedLongLong(value->value));
+ return t;
+}
+
+static void set_sample_read_in_dict(PyObject *dict_sample,
+ struct perf_sample *sample,
+ struct perf_evsel *evsel)
+{
+ u64 read_format = evsel->attr.read_format;
+ PyObject *values;
+ unsigned int i;
+
+ if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
+ pydict_set_item_string_decref(dict_sample, "time_enabled",
+ PyLong_FromUnsignedLongLong(sample->read.time_enabled));
+ }
+
+ if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
+ pydict_set_item_string_decref(dict_sample, "time_running",
+ PyLong_FromUnsignedLongLong(sample->read.time_running));
+ }
+
+ if (read_format & PERF_FORMAT_GROUP)
+ values = PyList_New(sample->read.group.nr);
+ else
+ values = PyList_New(1);
+
+ if (!values)
+ Py_FatalError("couldn't create Python list");
+
+ if (read_format & PERF_FORMAT_GROUP) {
+ for (i = 0; i < sample->read.group.nr; i++) {
+ PyObject *t = get_sample_value_as_tuple(&sample->read.group.values[i]);
+ PyList_SET_ITEM(values, i, t);
+ }
+ } else {
+ PyObject *t = get_sample_value_as_tuple(&sample->read.one);
+ PyList_SET_ITEM(values, 0, t);
+ }
+ pydict_set_item_string_decref(dict_sample, "values", values);
+}
+
+static void set_sample_datasrc_in_dict(PyObject *dict,
+ struct perf_sample *sample)
+{
+ struct mem_info mi = { .data_src.val = sample->data_src };
+ char decode[100];
+
+ pydict_set_item_string_decref(dict, "datasrc",
+ PyLong_FromUnsignedLongLong(sample->data_src));
+
+ perf_script__meminfo_scnprintf(decode, 100, &mi);
+
+ pydict_set_item_string_decref(dict, "datasrc_decode",
+ _PyUnicode_FromString(decode));
+}
+
+static int regs_map(struct regs_dump *regs, uint64_t mask, char *bf, int size)
+{
+ unsigned int i = 0, r;
+ int printed = 0;
+
+ bf[0] = 0;
+
+ for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) {
+ u64 val = regs->regs[i++];
+
+ printed += scnprintf(bf + printed, size - printed,
+ "%5s:0x%" PRIx64 " ",
+ perf_reg_name(r), val);
+ }
+
+ return printed;
+}
+
+static void set_regs_in_dict(PyObject *dict,
+ struct perf_sample *sample,
+ struct perf_evsel *evsel)
+{
+ struct perf_event_attr *attr = &evsel->attr;
+ char bf[512];
+
+ regs_map(&sample->intr_regs, attr->sample_regs_intr, bf, sizeof(bf));
+
+ pydict_set_item_string_decref(dict, "iregs",
+ _PyUnicode_FromString(bf));
+
+ regs_map(&sample->user_regs, attr->sample_regs_user, bf, sizeof(bf));
+
+ pydict_set_item_string_decref(dict, "uregs",
+ _PyUnicode_FromString(bf));
+}
+
+static PyObject *get_perf_sample_dict(struct perf_sample *sample,
+ struct perf_evsel *evsel,
+ struct addr_location *al,
+ PyObject *callchain)
+{
+ PyObject *dict, *dict_sample, *brstack, *brstacksym;
+
+ dict = PyDict_New();
+ if (!dict)
+ Py_FatalError("couldn't create Python dictionary");
+
+ dict_sample = PyDict_New();
+ if (!dict_sample)
+ Py_FatalError("couldn't create Python dictionary");
+
+ pydict_set_item_string_decref(dict, "ev_name", _PyUnicode_FromString(perf_evsel__name(evsel)));
+ pydict_set_item_string_decref(dict, "attr", _PyUnicode_FromStringAndSize(
+ (const char *)&evsel->attr, sizeof(evsel->attr)));
+
+ pydict_set_item_string_decref(dict_sample, "pid",
+ _PyLong_FromLong(sample->pid));
+ pydict_set_item_string_decref(dict_sample, "tid",
+ _PyLong_FromLong(sample->tid));
+ pydict_set_item_string_decref(dict_sample, "cpu",
+ _PyLong_FromLong(sample->cpu));
+ pydict_set_item_string_decref(dict_sample, "ip",
+ PyLong_FromUnsignedLongLong(sample->ip));
+ pydict_set_item_string_decref(dict_sample, "time",
+ PyLong_FromUnsignedLongLong(sample->time));
+ pydict_set_item_string_decref(dict_sample, "period",
+ PyLong_FromUnsignedLongLong(sample->period));
+ pydict_set_item_string_decref(dict_sample, "phys_addr",
+ PyLong_FromUnsignedLongLong(sample->phys_addr));
+ pydict_set_item_string_decref(dict_sample, "addr",
+ PyLong_FromUnsignedLongLong(sample->addr));
+ set_sample_read_in_dict(dict_sample, sample, evsel);
+ pydict_set_item_string_decref(dict_sample, "weight",
+ PyLong_FromUnsignedLongLong(sample->weight));
+ pydict_set_item_string_decref(dict_sample, "transaction",
+ PyLong_FromUnsignedLongLong(sample->transaction));
+ set_sample_datasrc_in_dict(dict_sample, sample);
+ pydict_set_item_string_decref(dict, "sample", dict_sample);
+
+ pydict_set_item_string_decref(dict, "raw_buf", _PyBytes_FromStringAndSize(
+ (const char *)sample->raw_data, sample->raw_size));
+ pydict_set_item_string_decref(dict, "comm",
+ _PyUnicode_FromString(thread__comm_str(al->thread)));
+ if (al->map) {
+ pydict_set_item_string_decref(dict, "dso",
+ _PyUnicode_FromString(al->map->dso->name));
+ }
+ if (al->sym) {
+ pydict_set_item_string_decref(dict, "symbol",
+ _PyUnicode_FromString(al->sym->name));
+ }
+
+ pydict_set_item_string_decref(dict, "callchain", callchain);
+
+ brstack = python_process_brstack(sample, al->thread);
+ pydict_set_item_string_decref(dict, "brstack", brstack);
+
+ brstacksym = python_process_brstacksym(sample, al->thread);
+ pydict_set_item_string_decref(dict, "brstacksym", brstacksym);
+
+ set_regs_in_dict(dict, sample, evsel);
+
+ return dict;
+}
+
+static void python_process_tracepoint(struct perf_sample *sample,
+ struct perf_evsel *evsel,
+ struct addr_location *al)
+{
+ struct event_format *event = evsel->tp_format;
+ PyObject *handler, *context, *t, *obj = NULL, *callchain;
+ PyObject *dict = NULL, *all_entries_dict = NULL;
+ static char handler_name[256];
+ struct format_field *field;
+ unsigned long s, ns;
+ unsigned n = 0;
+ int pid;
+ int cpu = sample->cpu;
+ void *data = sample->raw_data;
+ unsigned long long nsecs = sample->time;
+ const char *comm = thread__comm_str(al->thread);
+ const char *default_handler_name = "trace_unhandled";
+
+ if (!event) {
+ snprintf(handler_name, sizeof(handler_name),
+ "ug! no event found for type %" PRIu64, (u64)evsel->attr.config);
+ Py_FatalError(handler_name);
+ }
+
+ pid = raw_field_value(event, "common_pid", data);
+
+ sprintf(handler_name, "%s__%s", event->system, event->name);
+
+ if (!test_and_set_bit(event->id, events_defined))
+ define_event_symbols(event, handler_name, event->print_fmt.args);
+
+ handler = get_handler(handler_name);
+ if (!handler) {
+ handler = get_handler(default_handler_name);
+ if (!handler)
+ return;
+ dict = PyDict_New();
+ if (!dict)
+ Py_FatalError("couldn't create Python dict");
+ }
+
+ t = PyTuple_New(MAX_FIELDS);
+ if (!t)
+ Py_FatalError("couldn't create Python tuple");
+
+
+ s = nsecs / NSEC_PER_SEC;
+ ns = nsecs - s * NSEC_PER_SEC;
+
+ scripting_context->event_data = data;
+ scripting_context->pevent = evsel->tp_format->pevent;
+
+ context = _PyCapsule_New(scripting_context, NULL, NULL);
+
+ PyTuple_SetItem(t, n++, _PyUnicode_FromString(handler_name));
+ PyTuple_SetItem(t, n++, context);
+
+ /* ip unwinding */
+ callchain = python_process_callchain(sample, evsel, al);
+ /* Need an additional reference for the perf_sample dict */
+ Py_INCREF(callchain);
+
+ if (!dict) {
+ PyTuple_SetItem(t, n++, _PyLong_FromLong(cpu));
+ PyTuple_SetItem(t, n++, _PyLong_FromLong(s));
+ PyTuple_SetItem(t, n++, _PyLong_FromLong(ns));
+ PyTuple_SetItem(t, n++, _PyLong_FromLong(pid));
+ PyTuple_SetItem(t, n++, _PyUnicode_FromString(comm));
+ PyTuple_SetItem(t, n++, callchain);
+ } else {
+ pydict_set_item_string_decref(dict, "common_cpu", _PyLong_FromLong(cpu));
+ pydict_set_item_string_decref(dict, "common_s", _PyLong_FromLong(s));
+ pydict_set_item_string_decref(dict, "common_ns", _PyLong_FromLong(ns));
+ pydict_set_item_string_decref(dict, "common_pid", _PyLong_FromLong(pid));
+ pydict_set_item_string_decref(dict, "common_comm", _PyUnicode_FromString(comm));
+ pydict_set_item_string_decref(dict, "common_callchain", callchain);
+ }
+ for (field = event->format.fields; field; field = field->next) {
+ unsigned int offset, len;
+ unsigned long long val;
+
+ if (field->flags & FIELD_IS_ARRAY) {
+ offset = field->offset;
+ len = field->size;
+ if (field->flags & FIELD_IS_DYNAMIC) {
+ val = tep_read_number(scripting_context->pevent,
+ data + offset, len);
+ offset = val;
+ len = offset >> 16;
+ offset &= 0xffff;
+ }
+ if (field->flags & FIELD_IS_STRING &&
+ is_printable_array(data + offset, len)) {
+ obj = _PyUnicode_FromString((char *) data + offset);
+ } else {
+ obj = PyByteArray_FromStringAndSize((const char *) data + offset, len);
+ field->flags &= ~FIELD_IS_STRING;
+ }
+ } else { /* FIELD_IS_NUMERIC */
+ obj = get_field_numeric_entry(event, field, data);
+ }
+ if (!dict)
+ PyTuple_SetItem(t, n++, obj);
+ else
+ pydict_set_item_string_decref(dict, field->name, obj);
+
+ }
+
+ if (dict)
+ PyTuple_SetItem(t, n++, dict);
+
+ if (get_argument_count(handler) == (int) n + 1) {
+ all_entries_dict = get_perf_sample_dict(sample, evsel, al,
+ callchain);
+ PyTuple_SetItem(t, n++, all_entries_dict);
+ } else {
+ Py_DECREF(callchain);
+ }
+
+ if (_PyTuple_Resize(&t, n) == -1)
+ Py_FatalError("error resizing Python tuple");
+
+ if (!dict)
+ call_object(handler, t, handler_name);
+ else
+ call_object(handler, t, default_handler_name);
+
+ Py_DECREF(t);
+}
+
+static PyObject *tuple_new(unsigned int sz)
+{
+ PyObject *t;
+
+ t = PyTuple_New(sz);
+ if (!t)
+ Py_FatalError("couldn't create Python tuple");
+ return t;
+}
+
+static int tuple_set_u64(PyObject *t, unsigned int pos, u64 val)
+{
+#if BITS_PER_LONG == 64
+ return PyTuple_SetItem(t, pos, _PyLong_FromLong(val));
+#endif
+#if BITS_PER_LONG == 32
+ return PyTuple_SetItem(t, pos, PyLong_FromLongLong(val));
+#endif
+}
+
+static int tuple_set_s32(PyObject *t, unsigned int pos, s32 val)
+{
+ return PyTuple_SetItem(t, pos, _PyLong_FromLong(val));
+}
+
+static int tuple_set_string(PyObject *t, unsigned int pos, const char *s)
+{
+ return PyTuple_SetItem(t, pos, _PyUnicode_FromString(s));
+}
+
+static int python_export_evsel(struct db_export *dbe, struct perf_evsel *evsel)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ PyObject *t;
+
+ t = tuple_new(2);
+
+ tuple_set_u64(t, 0, evsel->db_id);
+ tuple_set_string(t, 1, perf_evsel__name(evsel));
+
+ call_object(tables->evsel_handler, t, "evsel_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_machine(struct db_export *dbe,
+ struct machine *machine)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ PyObject *t;
+
+ t = tuple_new(3);
+
+ tuple_set_u64(t, 0, machine->db_id);
+ tuple_set_s32(t, 1, machine->pid);
+ tuple_set_string(t, 2, machine->root_dir ? machine->root_dir : "");
+
+ call_object(tables->machine_handler, t, "machine_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_thread(struct db_export *dbe, struct thread *thread,
+ u64 main_thread_db_id, struct machine *machine)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ PyObject *t;
+
+ t = tuple_new(5);
+
+ tuple_set_u64(t, 0, thread->db_id);
+ tuple_set_u64(t, 1, machine->db_id);
+ tuple_set_u64(t, 2, main_thread_db_id);
+ tuple_set_s32(t, 3, thread->pid_);
+ tuple_set_s32(t, 4, thread->tid);
+
+ call_object(tables->thread_handler, t, "thread_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_comm(struct db_export *dbe, struct comm *comm)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ PyObject *t;
+
+ t = tuple_new(2);
+
+ tuple_set_u64(t, 0, comm->db_id);
+ tuple_set_string(t, 1, comm__str(comm));
+
+ call_object(tables->comm_handler, t, "comm_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_comm_thread(struct db_export *dbe, u64 db_id,
+ struct comm *comm, struct thread *thread)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ PyObject *t;
+
+ t = tuple_new(3);
+
+ tuple_set_u64(t, 0, db_id);
+ tuple_set_u64(t, 1, comm->db_id);
+ tuple_set_u64(t, 2, thread->db_id);
+
+ call_object(tables->comm_thread_handler, t, "comm_thread_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_dso(struct db_export *dbe, struct dso *dso,
+ struct machine *machine)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ char sbuild_id[SBUILD_ID_SIZE];
+ PyObject *t;
+
+ build_id__sprintf(dso->build_id, sizeof(dso->build_id), sbuild_id);
+
+ t = tuple_new(5);
+
+ tuple_set_u64(t, 0, dso->db_id);
+ tuple_set_u64(t, 1, machine->db_id);
+ tuple_set_string(t, 2, dso->short_name);
+ tuple_set_string(t, 3, dso->long_name);
+ tuple_set_string(t, 4, sbuild_id);
+
+ call_object(tables->dso_handler, t, "dso_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_symbol(struct db_export *dbe, struct symbol *sym,
+ struct dso *dso)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ u64 *sym_db_id = symbol__priv(sym);
+ PyObject *t;
+
+ t = tuple_new(6);
+
+ tuple_set_u64(t, 0, *sym_db_id);
+ tuple_set_u64(t, 1, dso->db_id);
+ tuple_set_u64(t, 2, sym->start);
+ tuple_set_u64(t, 3, sym->end);
+ tuple_set_s32(t, 4, sym->binding);
+ tuple_set_string(t, 5, sym->name);
+
+ call_object(tables->symbol_handler, t, "symbol_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_branch_type(struct db_export *dbe, u32 branch_type,
+ const char *name)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ PyObject *t;
+
+ t = tuple_new(2);
+
+ tuple_set_s32(t, 0, branch_type);
+ tuple_set_string(t, 1, name);
+
+ call_object(tables->branch_type_handler, t, "branch_type_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_sample(struct db_export *dbe,
+ struct export_sample *es)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ PyObject *t;
+
+ t = tuple_new(22);
+
+ tuple_set_u64(t, 0, es->db_id);
+ tuple_set_u64(t, 1, es->evsel->db_id);
+ tuple_set_u64(t, 2, es->al->machine->db_id);
+ tuple_set_u64(t, 3, es->al->thread->db_id);
+ tuple_set_u64(t, 4, es->comm_db_id);
+ tuple_set_u64(t, 5, es->dso_db_id);
+ tuple_set_u64(t, 6, es->sym_db_id);
+ tuple_set_u64(t, 7, es->offset);
+ tuple_set_u64(t, 8, es->sample->ip);
+ tuple_set_u64(t, 9, es->sample->time);
+ tuple_set_s32(t, 10, es->sample->cpu);
+ tuple_set_u64(t, 11, es->addr_dso_db_id);
+ tuple_set_u64(t, 12, es->addr_sym_db_id);
+ tuple_set_u64(t, 13, es->addr_offset);
+ tuple_set_u64(t, 14, es->sample->addr);
+ tuple_set_u64(t, 15, es->sample->period);
+ tuple_set_u64(t, 16, es->sample->weight);
+ tuple_set_u64(t, 17, es->sample->transaction);
+ tuple_set_u64(t, 18, es->sample->data_src);
+ tuple_set_s32(t, 19, es->sample->flags & PERF_BRANCH_MASK);
+ tuple_set_s32(t, 20, !!(es->sample->flags & PERF_IP_FLAG_IN_TX));
+ tuple_set_u64(t, 21, es->call_path_id);
+
+ call_object(tables->sample_handler, t, "sample_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_call_path(struct db_export *dbe, struct call_path *cp)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ PyObject *t;
+ u64 parent_db_id, sym_db_id;
+
+ parent_db_id = cp->parent ? cp->parent->db_id : 0;
+ sym_db_id = cp->sym ? *(u64 *)symbol__priv(cp->sym) : 0;
+
+ t = tuple_new(4);
+
+ tuple_set_u64(t, 0, cp->db_id);
+ tuple_set_u64(t, 1, parent_db_id);
+ tuple_set_u64(t, 2, sym_db_id);
+ tuple_set_u64(t, 3, cp->ip);
+
+ call_object(tables->call_path_handler, t, "call_path_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_call_return(struct db_export *dbe,
+ struct call_return *cr)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ u64 comm_db_id = cr->comm ? cr->comm->db_id : 0;
+ PyObject *t;
+
+ t = tuple_new(11);
+
+ tuple_set_u64(t, 0, cr->db_id);
+ tuple_set_u64(t, 1, cr->thread->db_id);
+ tuple_set_u64(t, 2, comm_db_id);
+ tuple_set_u64(t, 3, cr->cp->db_id);
+ tuple_set_u64(t, 4, cr->call_time);
+ tuple_set_u64(t, 5, cr->return_time);
+ tuple_set_u64(t, 6, cr->branch_count);
+ tuple_set_u64(t, 7, cr->call_ref);
+ tuple_set_u64(t, 8, cr->return_ref);
+ tuple_set_u64(t, 9, cr->cp->parent->db_id);
+ tuple_set_s32(t, 10, cr->flags);
+
+ call_object(tables->call_return_handler, t, "call_return_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_process_call_return(struct call_return *cr, void *data)
+{
+ struct db_export *dbe = data;
+
+ return db_export__call_return(dbe, cr);
+}
+
+static void python_process_general_event(struct perf_sample *sample,
+ struct perf_evsel *evsel,
+ struct addr_location *al)
+{
+ PyObject *handler, *t, *dict, *callchain;
+ static char handler_name[64];
+ unsigned n = 0;
+
+ snprintf(handler_name, sizeof(handler_name), "%s", "process_event");
+
+ handler = get_handler(handler_name);
+ if (!handler)
+ return;
+
+ /*
+ * Use the MAX_FIELDS to make the function expandable, though
+ * currently there is only one item for the tuple.
+ */
+ t = PyTuple_New(MAX_FIELDS);
+ if (!t)
+ Py_FatalError("couldn't create Python tuple");
+
+ /* ip unwinding */
+ callchain = python_process_callchain(sample, evsel, al);
+ dict = get_perf_sample_dict(sample, evsel, al, callchain);
+
+ PyTuple_SetItem(t, n++, dict);
+ if (_PyTuple_Resize(&t, n) == -1)
+ Py_FatalError("error resizing Python tuple");
+
+ call_object(handler, t, handler_name);
+
+ Py_DECREF(t);
+}
+
+static void python_process_event(union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_evsel *evsel,
+ struct addr_location *al)
+{
+ struct tables *tables = &tables_global;
+
+ switch (evsel->attr.type) {
+ case PERF_TYPE_TRACEPOINT:
+ python_process_tracepoint(sample, evsel, al);
+ break;
+ /* Reserve for future process_hw/sw/raw APIs */
+ default:
+ if (tables->db_export_mode)
+ db_export__sample(&tables->dbe, event, sample, evsel, al);
+ else
+ python_process_general_event(sample, evsel, al);
+ }
+}
+
+static void get_handler_name(char *str, size_t size,
+ struct perf_evsel *evsel)
+{
+ char *p = str;
+
+ scnprintf(str, size, "stat__%s", perf_evsel__name(evsel));
+
+ while ((p = strchr(p, ':'))) {
+ *p = '_';
+ p++;
+ }
+}
+
+static void
+process_stat(struct perf_evsel *counter, int cpu, int thread, u64 tstamp,
+ struct perf_counts_values *count)
+{
+ PyObject *handler, *t;
+ static char handler_name[256];
+ int n = 0;
+
+ t = PyTuple_New(MAX_FIELDS);
+ if (!t)
+ Py_FatalError("couldn't create Python tuple");
+
+ get_handler_name(handler_name, sizeof(handler_name),
+ counter);
+
+ handler = get_handler(handler_name);
+ if (!handler) {
+ pr_debug("can't find python handler %s\n", handler_name);
+ return;
+ }
+
+ PyTuple_SetItem(t, n++, _PyLong_FromLong(cpu));
+ PyTuple_SetItem(t, n++, _PyLong_FromLong(thread));
+
+ tuple_set_u64(t, n++, tstamp);
+ tuple_set_u64(t, n++, count->val);
+ tuple_set_u64(t, n++, count->ena);
+ tuple_set_u64(t, n++, count->run);
+
+ if (_PyTuple_Resize(&t, n) == -1)
+ Py_FatalError("error resizing Python tuple");
+
+ call_object(handler, t, handler_name);
+
+ Py_DECREF(t);
+}
+
+static void python_process_stat(struct perf_stat_config *config,
+ struct perf_evsel *counter, u64 tstamp)
+{
+ struct thread_map *threads = counter->threads;
+ struct cpu_map *cpus = counter->cpus;
+ int cpu, thread;
+
+ if (config->aggr_mode == AGGR_GLOBAL) {
+ process_stat(counter, -1, -1, tstamp,
+ &counter->counts->aggr);
+ return;
+ }
+
+ for (thread = 0; thread < threads->nr; thread++) {
+ for (cpu = 0; cpu < cpus->nr; cpu++) {
+ process_stat(counter, cpus->map[cpu],
+ thread_map__pid(threads, thread), tstamp,
+ perf_counts(counter->counts, cpu, thread));
+ }
+ }
+}
+
+static void python_process_stat_interval(u64 tstamp)
+{
+ PyObject *handler, *t;
+ static const char handler_name[] = "stat__interval";
+ int n = 0;
+
+ t = PyTuple_New(MAX_FIELDS);
+ if (!t)
+ Py_FatalError("couldn't create Python tuple");
+
+ handler = get_handler(handler_name);
+ if (!handler) {
+ pr_debug("can't find python handler %s\n", handler_name);
+ return;
+ }
+
+ tuple_set_u64(t, n++, tstamp);
+
+ if (_PyTuple_Resize(&t, n) == -1)
+ Py_FatalError("error resizing Python tuple");
+
+ call_object(handler, t, handler_name);
+
+ Py_DECREF(t);
+}
+
+static int run_start_sub(void)
+{
+ main_module = PyImport_AddModule("__main__");
+ if (main_module == NULL)
+ return -1;
+ Py_INCREF(main_module);
+
+ main_dict = PyModule_GetDict(main_module);
+ if (main_dict == NULL)
+ goto error;
+ Py_INCREF(main_dict);
+
+ try_call_object("trace_begin", NULL);
+
+ return 0;
+
+error:
+ Py_XDECREF(main_dict);
+ Py_XDECREF(main_module);
+ return -1;
+}
+
+#define SET_TABLE_HANDLER_(name, handler_name, table_name) do { \
+ tables->handler_name = get_handler(#table_name); \
+ if (tables->handler_name) \
+ tables->dbe.export_ ## name = python_export_ ## name; \
+} while (0)
+
+#define SET_TABLE_HANDLER(name) \
+ SET_TABLE_HANDLER_(name, name ## _handler, name ## _table)
+
+static void set_table_handlers(struct tables *tables)
+{
+ const char *perf_db_export_mode = "perf_db_export_mode";
+ const char *perf_db_export_calls = "perf_db_export_calls";
+ const char *perf_db_export_callchains = "perf_db_export_callchains";
+ PyObject *db_export_mode, *db_export_calls, *db_export_callchains;
+ bool export_calls = false;
+ bool export_callchains = false;
+ int ret;
+
+ memset(tables, 0, sizeof(struct tables));
+ if (db_export__init(&tables->dbe))
+ Py_FatalError("failed to initialize export");
+
+ db_export_mode = PyDict_GetItemString(main_dict, perf_db_export_mode);
+ if (!db_export_mode)
+ return;
+
+ ret = PyObject_IsTrue(db_export_mode);
+ if (ret == -1)
+ handler_call_die(perf_db_export_mode);
+ if (!ret)
+ return;
+
+ /* handle export calls */
+ tables->dbe.crp = NULL;
+ db_export_calls = PyDict_GetItemString(main_dict, perf_db_export_calls);
+ if (db_export_calls) {
+ ret = PyObject_IsTrue(db_export_calls);
+ if (ret == -1)
+ handler_call_die(perf_db_export_calls);
+ export_calls = !!ret;
+ }
+
+ if (export_calls) {
+ tables->dbe.crp =
+ call_return_processor__new(python_process_call_return,
+ &tables->dbe);
+ if (!tables->dbe.crp)
+ Py_FatalError("failed to create calls processor");
+ }
+
+ /* handle export callchains */
+ tables->dbe.cpr = NULL;
+ db_export_callchains = PyDict_GetItemString(main_dict,
+ perf_db_export_callchains);
+ if (db_export_callchains) {
+ ret = PyObject_IsTrue(db_export_callchains);
+ if (ret == -1)
+ handler_call_die(perf_db_export_callchains);
+ export_callchains = !!ret;
+ }
+
+ if (export_callchains) {
+ /*
+ * Attempt to use the call path root from the call return
+ * processor, if the call return processor is in use. Otherwise,
+ * we allocate a new call path root. This prevents exporting
+ * duplicate call path ids when both are in use simultaniously.
+ */
+ if (tables->dbe.crp)
+ tables->dbe.cpr = tables->dbe.crp->cpr;
+ else
+ tables->dbe.cpr = call_path_root__new();
+
+ if (!tables->dbe.cpr)
+ Py_FatalError("failed to create call path root");
+ }
+
+ tables->db_export_mode = true;
+ /*
+ * Reserve per symbol space for symbol->db_id via symbol__priv()
+ */
+ symbol_conf.priv_size = sizeof(u64);
+
+ SET_TABLE_HANDLER(evsel);
+ SET_TABLE_HANDLER(machine);
+ SET_TABLE_HANDLER(thread);
+ SET_TABLE_HANDLER(comm);
+ SET_TABLE_HANDLER(comm_thread);
+ SET_TABLE_HANDLER(dso);
+ SET_TABLE_HANDLER(symbol);
+ SET_TABLE_HANDLER(branch_type);
+ SET_TABLE_HANDLER(sample);
+ SET_TABLE_HANDLER(call_path);
+ SET_TABLE_HANDLER(call_return);
+}
+
+#if PY_MAJOR_VERSION < 3
+static void _free_command_line(const char **command_line, int num)
+{
+ free(command_line);
+}
+#else
+static void _free_command_line(wchar_t **command_line, int num)
+{
+ int i;
+ for (i = 0; i < num; i++)
+ PyMem_RawFree(command_line[i]);
+ free(command_line);
+}
+#endif
+
+
+/*
+ * Start trace script
+ */
+static int python_start_script(const char *script, int argc, const char **argv)
+{
+ struct tables *tables = &tables_global;
+#if PY_MAJOR_VERSION < 3
+ const char **command_line;
+#else
+ wchar_t **command_line;
+#endif
+ char buf[PATH_MAX];
+ int i, err = 0;
+ FILE *fp;
+
+#if PY_MAJOR_VERSION < 3
+ command_line = malloc((argc + 1) * sizeof(const char *));
+ command_line[0] = script;
+ for (i = 1; i < argc + 1; i++)
+ command_line[i] = argv[i - 1];
+#else
+ command_line = malloc((argc + 1) * sizeof(wchar_t *));
+ command_line[0] = Py_DecodeLocale(script, NULL);
+ for (i = 1; i < argc + 1; i++)
+ command_line[i] = Py_DecodeLocale(argv[i - 1], NULL);
+#endif
+
+ Py_Initialize();
+
+#if PY_MAJOR_VERSION < 3
+ initperf_trace_context();
+ PySys_SetArgv(argc + 1, (char **)command_line);
+#else
+ PyInit_perf_trace_context();
+ PySys_SetArgv(argc + 1, command_line);
+#endif
+
+ fp = fopen(script, "r");
+ if (!fp) {
+ sprintf(buf, "Can't open python script \"%s\"", script);
+ perror(buf);
+ err = -1;
+ goto error;
+ }
+
+ err = PyRun_SimpleFile(fp, script);
+ if (err) {
+ fprintf(stderr, "Error running python script %s\n", script);
+ goto error;
+ }
+
+ err = run_start_sub();
+ if (err) {
+ fprintf(stderr, "Error starting python script %s\n", script);
+ goto error;
+ }
+
+ set_table_handlers(tables);
+
+ if (tables->db_export_mode) {
+ err = db_export__branch_types(&tables->dbe);
+ if (err)
+ goto error;
+ }
+
+ _free_command_line(command_line, argc + 1);
+
+ return err;
+error:
+ Py_Finalize();
+ _free_command_line(command_line, argc + 1);
+
+ return err;
+}
+
+static int python_flush_script(void)
+{
+ struct tables *tables = &tables_global;
+
+ return db_export__flush(&tables->dbe);
+}
+
+/*
+ * Stop trace script
+ */
+static int python_stop_script(void)
+{
+ struct tables *tables = &tables_global;
+
+ try_call_object("trace_end", NULL);
+
+ db_export__exit(&tables->dbe);
+
+ Py_XDECREF(main_dict);
+ Py_XDECREF(main_module);
+ Py_Finalize();
+
+ return 0;
+}
+
+static int python_generate_script(struct tep_handle *pevent, const char *outfile)
+{
+ struct event_format *event = NULL;
+ struct format_field *f;
+ char fname[PATH_MAX];
+ int not_first, count;
+ FILE *ofp;
+
+ sprintf(fname, "%s.py", outfile);
+ ofp = fopen(fname, "w");
+ if (ofp == NULL) {
+ fprintf(stderr, "couldn't open %s\n", fname);
+ return -1;
+ }
+ fprintf(ofp, "# perf script event handlers, "
+ "generated by perf script -g python\n");
+
+ fprintf(ofp, "# Licensed under the terms of the GNU GPL"
+ " License version 2\n\n");
+
+ fprintf(ofp, "# The common_* event handler fields are the most useful "
+ "fields common to\n");
+
+ fprintf(ofp, "# all events. They don't necessarily correspond to "
+ "the 'common_*' fields\n");
+
+ fprintf(ofp, "# in the format files. Those fields not available as "
+ "handler params can\n");
+
+ fprintf(ofp, "# be retrieved using Python functions of the form "
+ "common_*(context).\n");
+
+ fprintf(ofp, "# See the perf-script-python Documentation for the list "
+ "of available functions.\n\n");
+
+ fprintf(ofp, "from __future__ import print_function\n\n");
+ fprintf(ofp, "import os\n");
+ fprintf(ofp, "import sys\n\n");
+
+ fprintf(ofp, "sys.path.append(os.environ['PERF_EXEC_PATH'] + \\\n");
+ fprintf(ofp, "\t'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')\n");
+ fprintf(ofp, "\nfrom perf_trace_context import *\n");
+ fprintf(ofp, "from Core import *\n\n\n");
+
+ fprintf(ofp, "def trace_begin():\n");
+ fprintf(ofp, "\tprint(\"in trace_begin\")\n\n");
+
+ fprintf(ofp, "def trace_end():\n");
+ fprintf(ofp, "\tprint(\"in trace_end\")\n\n");
+
+ while ((event = trace_find_next_event(pevent, event))) {
+ fprintf(ofp, "def %s__%s(", event->system, event->name);
+ fprintf(ofp, "event_name, ");
+ fprintf(ofp, "context, ");
+ fprintf(ofp, "common_cpu,\n");
+ fprintf(ofp, "\tcommon_secs, ");
+ fprintf(ofp, "common_nsecs, ");
+ fprintf(ofp, "common_pid, ");
+ fprintf(ofp, "common_comm,\n\t");
+ fprintf(ofp, "common_callchain, ");
+
+ not_first = 0;
+ count = 0;
+
+ for (f = event->format.fields; f; f = f->next) {
+ if (not_first++)
+ fprintf(ofp, ", ");
+ if (++count % 5 == 0)
+ fprintf(ofp, "\n\t");
+
+ fprintf(ofp, "%s", f->name);
+ }
+ if (not_first++)
+ fprintf(ofp, ", ");
+ if (++count % 5 == 0)
+ fprintf(ofp, "\n\t\t");
+ fprintf(ofp, "perf_sample_dict");
+
+ fprintf(ofp, "):\n");
+
+ fprintf(ofp, "\t\tprint_header(event_name, common_cpu, "
+ "common_secs, common_nsecs,\n\t\t\t"
+ "common_pid, common_comm)\n\n");
+
+ fprintf(ofp, "\t\tprint(\"");
+
+ not_first = 0;
+ count = 0;
+
+ for (f = event->format.fields; f; f = f->next) {
+ if (not_first++)
+ fprintf(ofp, ", ");
+ if (count && count % 3 == 0) {
+ fprintf(ofp, "\" \\\n\t\t\"");
+ }
+ count++;
+
+ fprintf(ofp, "%s=", f->name);
+ if (f->flags & FIELD_IS_STRING ||
+ f->flags & FIELD_IS_FLAG ||
+ f->flags & FIELD_IS_ARRAY ||
+ f->flags & FIELD_IS_SYMBOLIC)
+ fprintf(ofp, "%%s");
+ else if (f->flags & FIELD_IS_SIGNED)
+ fprintf(ofp, "%%d");
+ else
+ fprintf(ofp, "%%u");
+ }
+
+ fprintf(ofp, "\" %% \\\n\t\t(");
+
+ not_first = 0;
+ count = 0;
+
+ for (f = event->format.fields; f; f = f->next) {
+ if (not_first++)
+ fprintf(ofp, ", ");
+
+ if (++count % 5 == 0)
+ fprintf(ofp, "\n\t\t");
+
+ if (f->flags & FIELD_IS_FLAG) {
+ if ((count - 1) % 5 != 0) {
+ fprintf(ofp, "\n\t\t");
+ count = 4;
+ }
+ fprintf(ofp, "flag_str(\"");
+ fprintf(ofp, "%s__%s\", ", event->system,
+ event->name);
+ fprintf(ofp, "\"%s\", %s)", f->name,
+ f->name);
+ } else if (f->flags & FIELD_IS_SYMBOLIC) {
+ if ((count - 1) % 5 != 0) {
+ fprintf(ofp, "\n\t\t");
+ count = 4;
+ }
+ fprintf(ofp, "symbol_str(\"");
+ fprintf(ofp, "%s__%s\", ", event->system,
+ event->name);
+ fprintf(ofp, "\"%s\", %s)", f->name,
+ f->name);
+ } else
+ fprintf(ofp, "%s", f->name);
+ }
+
+ fprintf(ofp, "))\n\n");
+
+ fprintf(ofp, "\t\tprint('Sample: {'+"
+ "get_dict_as_string(perf_sample_dict['sample'], ', ')+'}')\n\n");
+
+ fprintf(ofp, "\t\tfor node in common_callchain:");
+ fprintf(ofp, "\n\t\t\tif 'sym' in node:");
+ fprintf(ofp, "\n\t\t\t\tprint(\"\\t[%%x] %%s\" %% (node['ip'], node['sym']['name']))");
+ fprintf(ofp, "\n\t\t\telse:");
+ fprintf(ofp, "\n\t\t\t\tprint(\"\t[%%x]\" %% (node['ip']))\n\n");
+ fprintf(ofp, "\t\tprint()\n\n");
+
+ }
+
+ fprintf(ofp, "def trace_unhandled(event_name, context, "
+ "event_fields_dict, perf_sample_dict):\n");
+
+ fprintf(ofp, "\t\tprint(get_dict_as_string(event_fields_dict))\n");
+ fprintf(ofp, "\t\tprint('Sample: {'+"
+ "get_dict_as_string(perf_sample_dict['sample'], ', ')+'}')\n\n");
+
+ fprintf(ofp, "def print_header("
+ "event_name, cpu, secs, nsecs, pid, comm):\n"
+ "\tprint(\"%%-20s %%5u %%05u.%%09u %%8u %%-20s \" %% \\\n\t"
+ "(event_name, cpu, secs, nsecs, pid, comm), end=\"\")\n\n");
+
+ fprintf(ofp, "def get_dict_as_string(a_dict, delimiter=' '):\n"
+ "\treturn delimiter.join"
+ "(['%%s=%%s'%%(k,str(v))for k,v in sorted(a_dict.items())])\n");
+
+ fclose(ofp);
+
+ fprintf(stderr, "generated Python script: %s\n", fname);
+
+ return 0;
+}
+
+struct scripting_ops python_scripting_ops = {
+ .name = "Python",
+ .start_script = python_start_script,
+ .flush_script = python_flush_script,
+ .stop_script = python_stop_script,
+ .process_event = python_process_event,
+ .process_stat = python_process_stat,
+ .process_stat_interval = python_process_stat_interval,
+ .generate_script = python_generate_script,
+};