diff options
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
| -rw-r--r-- | tools/perf/util/scripting-engines/trace-event-python.c | 150 |
1 files changed, 98 insertions, 52 deletions
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c index 2c2697c5d025..94312741443a 100644 --- a/tools/perf/util/scripting-engines/trace-event-python.c +++ b/tools/perf/util/scripting-engines/trace-event-python.c @@ -30,7 +30,9 @@ #include <linux/bitmap.h> #include <linux/compiler.h> #include <linux/time64.h> +#ifdef HAVE_LIBTRACEEVENT #include <traceevent/event-parse.h> +#endif #include "../build-id.h" #include "../counts.h" @@ -87,18 +89,19 @@ PyMODINIT_FUNC initperf_trace_context(void); PyMODINIT_FUNC PyInit_perf_trace_context(void); #endif +#ifdef HAVE_LIBTRACEEVENT #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; +#endif + +#define MAX_FIELDS 64 + +extern struct scripting_context *scripting_context; static PyObject *main_module, *main_dict; @@ -153,6 +156,26 @@ static PyObject *get_handler(const char *handler_name) return handler; } +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); +} + +#ifdef HAVE_LIBTRACEEVENT static int get_argument_count(PyObject *handler) { int arg_count = 0; @@ -181,25 +204,6 @@ static int get_argument_count(PyObject *handler) 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 tep_print_arg_type field_type, const char *ev_name, const char *field_name, @@ -379,16 +383,18 @@ static PyObject *get_field_numeric_entry(struct tep_event *event, obj = list; return obj; } +#endif static const char *get_dsoname(struct map *map) { const char *dsoname = "[unknown]"; + struct dso *dso = map ? map__dso(map) : NULL; - if (map && map->dso) { - if (symbol_conf.show_kernel_path && map->dso->long_name) - dsoname = map->dso->long_name; + if (dso) { + if (symbol_conf.show_kernel_path && dso->long_name) + dsoname = dso->long_name; else - dsoname = map->dso->name; + dsoname = dso->name; } return dsoname; @@ -401,7 +407,7 @@ static unsigned long get_offset(struct symbol *sym, struct addr_location *al) if (al->addr < sym->end) offset = al->addr - sym->start; else - offset = al->addr - al->map->start - sym->start; + offset = al->addr - map__start(al->map) - sym->start; return offset; } @@ -411,6 +417,7 @@ static PyObject *python_process_callchain(struct perf_sample *sample, struct addr_location *al) { PyObject *pylist; + struct callchain_cursor *cursor; pylist = PyList_New(0); if (!pylist) @@ -419,19 +426,20 @@ static PyObject *python_process_callchain(struct perf_sample *sample, if (!symbol_conf.use_callchain || !sample->callchain) goto exit; - if (thread__resolve_callchain(al->thread, &callchain_cursor, evsel, + cursor = get_tls_callchain_cursor(); + if (thread__resolve_callchain(al->thread, cursor, evsel, sample, NULL, NULL, scripting_max_stack) != 0) { pr_err("Failed to resolve callchain. Skipping\n"); goto exit; } - callchain_cursor_commit(&callchain_cursor); + callchain_cursor_commit(cursor); while (1) { PyObject *pyelem; struct callchain_cursor_node *node; - node = callchain_cursor_current(&callchain_cursor); + node = callchain_cursor_current(cursor); if (!node) break; @@ -463,9 +471,11 @@ static PyObject *python_process_callchain(struct perf_sample *sample, struct addr_location node_al; unsigned long offset; - node_al.addr = map->map_ip(map, node->ip); - node_al.map = map; + addr_location__init(&node_al); + node_al.addr = map__map_ip(map, node->ip); + node_al.map = map__get(map); offset = get_offset(node->ms.sym, &node_al); + addr_location__exit(&node_al); pydict_set_item_string_decref( pyelem, "sym_off", @@ -485,7 +495,7 @@ static PyObject *python_process_callchain(struct perf_sample *sample, _PyUnicode_FromString(dsoname)); } - callchain_cursor_advance(&callchain_cursor); + callchain_cursor_advance(cursor); PyList_Append(pylist, pyelem); Py_DECREF(pyelem); } @@ -533,6 +543,7 @@ static PyObject *python_process_brstack(struct perf_sample *sample, pydict_set_item_string_decref(pyelem, "cycles", PyLong_FromUnsignedLongLong(entries[i].flags.cycles)); + addr_location__init(&al); thread__find_map_fb(thread, sample->cpumode, entries[i].from, &al); dsoname = get_dsoname(al.map); @@ -545,6 +556,7 @@ static PyObject *python_process_brstack(struct perf_sample *sample, pydict_set_item_string_decref(pyelem, "to_dsoname", _PyUnicode_FromString(dsoname)); + addr_location__exit(&al); PyList_Append(pylist, pyelem); Py_DECREF(pyelem); } @@ -588,7 +600,6 @@ static PyObject *python_process_brstacksym(struct perf_sample *sample, PyObject *pylist; u64 i; char bf[512]; - struct addr_location al; pylist = PyList_New(0); if (!pylist) @@ -599,7 +610,9 @@ static PyObject *python_process_brstacksym(struct perf_sample *sample, for (i = 0; i < br->nr; i++) { PyObject *pyelem; + struct addr_location al; + addr_location__init(&al); pyelem = PyDict_New(); if (!pyelem) Py_FatalError("couldn't create Python dictionary"); @@ -638,6 +651,7 @@ static PyObject *python_process_brstacksym(struct perf_sample *sample, PyList_Append(pylist, pyelem); Py_DECREF(pyelem); + addr_location__exit(&al); } exit: @@ -725,6 +739,9 @@ static void regs_map(struct regs_dump *regs, uint64_t mask, const char *arch, ch bf[0] = 0; + if (size <= 0) + return; + if (!regs || !regs->regs) return; @@ -752,17 +769,18 @@ static void set_regs_in_dict(PyObject *dict, * 10 chars is for register name. */ int size = __sw_hweight64(attr->sample_regs_intr) * 28; - char bf[size]; + char *bf = malloc(size); - regs_map(&sample->intr_regs, attr->sample_regs_intr, arch, bf, sizeof(bf)); + regs_map(&sample->intr_regs, attr->sample_regs_intr, arch, bf, size); pydict_set_item_string_decref(dict, "iregs", _PyUnicode_FromString(bf)); - regs_map(&sample->user_regs, attr->sample_regs_user, arch, bf, sizeof(bf)); + regs_map(&sample->user_regs, attr->sample_regs_user, arch, bf, size); pydict_set_item_string_decref(dict, "uregs", _PyUnicode_FromString(bf)); + free(bf); } static void set_sym_in_dict(PyObject *dict, struct addr_location *al, @@ -773,15 +791,16 @@ static void set_sym_in_dict(PyObject *dict, struct addr_location *al, char sbuild_id[SBUILD_ID_SIZE]; if (al->map) { - pydict_set_item_string_decref(dict, dso_field, - _PyUnicode_FromString(al->map->dso->name)); - build_id__sprintf(&al->map->dso->bid, sbuild_id); + struct dso *dso = map__dso(al->map); + + pydict_set_item_string_decref(dict, dso_field, _PyUnicode_FromString(dso->name)); + build_id__sprintf(&dso->bid, sbuild_id); pydict_set_item_string_decref(dict, dso_bid_field, _PyUnicode_FromString(sbuild_id)); pydict_set_item_string_decref(dict, dso_map_start, - PyLong_FromUnsignedLong(al->map->start)); + PyLong_FromUnsignedLong(map__start(al->map))); pydict_set_item_string_decref(dict, dso_map_end, - PyLong_FromUnsignedLong(al->map->end)); + PyLong_FromUnsignedLong(map__end(al->map))); } if (al->sym) { pydict_set_item_string_decref(dict, sym_field, @@ -906,6 +925,7 @@ static PyObject *get_perf_sample_dict(struct perf_sample *sample, return dict; } +#ifdef HAVE_LIBTRACEEVENT static void python_process_tracepoint(struct perf_sample *sample, struct evsel *evsel, struct addr_location *al, @@ -924,6 +944,9 @@ static void python_process_tracepoint(struct perf_sample *sample, unsigned long long nsecs = sample->time; const char *comm = thread__comm_str(al->thread); const char *default_handler_name = "trace_unhandled"; + DECLARE_BITMAP(events_defined, TRACE_EVENT_TYPE_MAX); + + bitmap_zero(events_defined, TRACE_EVENT_TYPE_MAX); if (!event) { snprintf(handler_name, sizeof(handler_name), @@ -1035,6 +1058,16 @@ static void python_process_tracepoint(struct perf_sample *sample, Py_DECREF(t); } +#else +static void python_process_tracepoint(struct perf_sample *sample __maybe_unused, + struct evsel *evsel __maybe_unused, + struct addr_location *al __maybe_unused, + struct addr_location *addr_al __maybe_unused) +{ + fprintf(stderr, "Tracepoint events are not supported because " + "perf is not linked with libtraceevent.\n"); +} +#endif static PyObject *tuple_new(unsigned int sz) { @@ -1142,11 +1175,11 @@ static int python_export_thread(struct db_export *dbe, struct thread *thread, t = tuple_new(5); - tuple_set_d64(t, 0, thread->db_id); + tuple_set_d64(t, 0, thread__db_id(thread)); tuple_set_d64(t, 1, machine->db_id); tuple_set_d64(t, 2, main_thread_db_id); - tuple_set_s32(t, 3, thread->pid_); - tuple_set_s32(t, 4, thread->tid); + tuple_set_s32(t, 3, thread__pid(thread)); + tuple_set_s32(t, 4, thread__tid(thread)); call_object(tables->thread_handler, t, "thread_table"); @@ -1165,7 +1198,7 @@ static int python_export_comm(struct db_export *dbe, struct comm *comm, tuple_set_d64(t, 0, comm->db_id); tuple_set_string(t, 1, comm__str(comm)); - tuple_set_d64(t, 2, thread->db_id); + tuple_set_d64(t, 2, thread__db_id(thread)); tuple_set_d64(t, 3, comm->start); tuple_set_s32(t, 4, comm->exec); @@ -1186,7 +1219,7 @@ static int python_export_comm_thread(struct db_export *dbe, u64 db_id, tuple_set_d64(t, 0, db_id); tuple_set_d64(t, 1, comm->db_id); - tuple_set_d64(t, 2, thread->db_id); + tuple_set_d64(t, 2, thread__db_id(thread)); call_object(tables->comm_thread_handler, t, "comm_thread_table"); @@ -1270,8 +1303,8 @@ static void python_export_sample_table(struct db_export *dbe, tuple_set_d64(t, 0, es->db_id); tuple_set_d64(t, 1, es->evsel->db_id); - tuple_set_d64(t, 2, es->al->maps->machine->db_id); - tuple_set_d64(t, 3, es->al->thread->db_id); + tuple_set_d64(t, 2, maps__machine(es->al->maps)->db_id); + tuple_set_d64(t, 3, thread__db_id(es->al->thread)); tuple_set_d64(t, 4, es->comm_db_id); tuple_set_d64(t, 5, es->dso_db_id); tuple_set_d64(t, 6, es->sym_db_id); @@ -1361,7 +1394,7 @@ static int python_export_call_return(struct db_export *dbe, t = tuple_new(14); tuple_set_d64(t, 0, cr->db_id); - tuple_set_d64(t, 1, cr->thread->db_id); + tuple_set_d64(t, 1, thread__db_id(cr->thread)); tuple_set_d64(t, 2, comm_db_id); tuple_set_d64(t, 3, cr->cp->db_id); tuple_set_d64(t, 4, cr->call_time); @@ -1965,6 +1998,7 @@ static int python_stop_script(void) return 0; } +#ifdef HAVE_LIBTRACEEVENT static int python_generate_script(struct tep_handle *pevent, const char *outfile) { int i, not_first, count, nr_events; @@ -2155,6 +2189,18 @@ static int python_generate_script(struct tep_handle *pevent, const char *outfile return 0; } +#else +static int python_generate_script(struct tep_handle *pevent __maybe_unused, + const char *outfile __maybe_unused) +{ + fprintf(stderr, "Generating Python perf-script is not supported." + " Install libtraceevent and rebuild perf to enable it.\n" + "For example:\n # apt install libtraceevent-dev (ubuntu)" + "\n # yum install libtraceevent-devel (Fedora)" + "\n etc.\n"); + return -1; +} +#endif struct scripting_ops python_scripting_ops = { .name = "Python", |