perf_event::~perf_event(void)
{
if (name)
free(name);
if (perf_event::pevent->ref_count == 1) {
pevent_free(perf_event::pevent);
perf_event::pevent = NULL;
} else
pevent_unref(perf_event::pevent);
}
/**
* tracecmd_local_events - create a pevent from the events on system
* @tracing_dir: The directory that contains the events.
*
* Returns a pevent structure that contains the pevents local to
* the system.
*/
struct pevent *tracecmd_local_events(const char *tracing_dir)
{
struct pevent *pevent = NULL;
pevent = pevent_alloc();
if (!pevent)
return NULL;
if (tracecmd_fill_local_events(tracing_dir, pevent)) {
pevent_free(pevent);
pevent = NULL;
}
return pevent;
}
static void show_plugins(void)
{
struct pevent *pevent;
struct plugin_list *list;
struct trace_seq s;
pevent = pevent_alloc();
if (!pevent)
die("Can not allocate pevent\n");
trace_seq_init(&s);
list = tracecmd_load_plugins(pevent);
trace_util_print_plugins(&s, " ", "\n", list);
trace_seq_do_printf(&s);
tracecmd_unload_plugins(list, pevent);
pevent_free(pevent);
}
void trace_event__cleanup(struct trace_event *t)
{
traceevent_unload_plugins(t->plugin_list, t->pevent);
pevent_free(t->pevent);
}
int main (int argc, char **argv)
{
int c;
errno = 0;
if (argc < 2)
usage(argv);
if (strcmp(argv[1], "report") == 0) {
trace_report(argc, argv);
exit(0);
} else if (strcmp(argv[1], "snapshot") == 0) {
trace_snapshot(argc, argv);
exit(0);
} else if (strcmp(argv[1], "hist") == 0) {
trace_hist(argc, argv);
exit(0);
} else if (strcmp(argv[1], "mem") == 0) {
trace_mem(argc, argv);
exit(0);
} else if (strcmp(argv[1], "listen") == 0) {
trace_listen(argc, argv);
exit(0);
} else if (strcmp(argv[1], "split") == 0) {
trace_split(argc, argv);
exit(0);
} else if (strcmp(argv[1], "restore") == 0) {
trace_restore(argc, argv);
exit(0);
} else if (strcmp(argv[1], "stack") == 0) {
trace_stack(argc, argv);
exit(0);
} else if (strcmp(argv[1], "check-events") == 0) {
const char *tracing;
int ret;
struct pevent *pevent = NULL;
struct plugin_list *list = NULL;
while ((c = getopt(argc-1, argv+1, "+hN")) >= 0) {
switch (c) {
case 'h':
default:
usage(argv);
break;
case 'N':
tracecmd_disable_plugins = 1;
break;
}
}
tracing = tracecmd_get_tracing_dir();
if (!tracing) {
printf("Can not find or mount tracing directory!\n"
"Either tracing is not configured for this "
"kernel\n"
"or you do not have the proper permissions to "
"mount the directory");
exit(EINVAL);
}
pevent = pevent_alloc();
if (!pevent)
exit(EINVAL);
list = tracecmd_load_plugins(pevent);
ret = tracecmd_fill_local_events(tracing, pevent);
if (ret || pevent->parsing_failures)
ret = EINVAL;
tracecmd_unload_plugins(list, pevent);
pevent_free(pevent);
exit(ret);
} else if (strcmp(argv[1], "record") == 0 ||
strcmp(argv[1], "start") == 0 ||
strcmp(argv[1], "extract") == 0 ||
strcmp(argv[1], "stop") == 0 ||
strcmp(argv[1], "stream") == 0 ||
strcmp(argv[1], "profile") == 0 ||
strcmp(argv[1], "restart") == 0 ||
strcmp(argv[1], "reset") == 0) {
trace_record(argc, argv);
exit(0);
} else if (strcmp(argv[1], "stat") == 0) {
trace_stat(argc, argv);
exit(0);
} else if (strcmp(argv[1], "options") == 0) {
show_plugin_options();
exit(0);
} else if (strcmp(argv[1], "show") == 0) {
const char *buffer = NULL;
const char *file = "trace";
const char *cpu = NULL;
struct buffer_instance *instance = &top_instance;
char cpu_path[128];
char *path;
int snap = 0;
int pipe = 0;
int show_name = 0;
int option_index = 0;
int stop = 0;
static struct option long_options[] = {
{"tracing_on", no_argument, NULL, OPT_tracing_on},
{"current_tracer", no_argument, NULL, OPT_current_tracer},
{"buffer_size", no_argument, NULL, OPT_buffer_size_kb},
{"buffer_total_size", no_argument, NULL, OPT_buffer_total_size_kb},
{"ftrace_filter", no_argument, NULL, OPT_ftrace_filter},
{"ftrace_notrace", no_argument, NULL, OPT_ftrace_notrace},
{"ftrace_pid", no_argument, NULL, OPT_ftrace_pid},
{"graph_function", no_argument, NULL, OPT_graph_function},
{"graph_notrace", no_argument, NULL, OPT_graph_notrace},
{"cpumask", no_argument, NULL, OPT_cpumask},
{"help", no_argument, NULL, '?'},
{NULL, 0, NULL, 0}
};
while ((c = getopt_long(argc-1, argv+1, "B:c:fsp",
long_options, &option_index)) >= 0) {
switch (c) {
case 'h':
usage(argv);
break;
case 'B':
if (buffer)
die("Can only show one buffer at a time");
buffer = optarg;
instance = create_instance(optarg);
if (!instance)
die("Failed to create instance");
break;
case 'c':
if (cpu)
die("Can only show one CPU at a time");
cpu = optarg;
break;
case 'f':
show_name = 1;
break;
case 's':
snap = 1;
if (pipe)
die("Can not have -s and -p together");
break;
case 'p':
pipe = 1;
if (snap)
die("Can not have -s and -p together");
break;
case OPT_tracing_on:
show_instance_file(instance, "tracing_on");
stop = 1;
break;
case OPT_current_tracer:
show_instance_file(instance, "current_tracer");
stop = 1;
break;
case OPT_buffer_size_kb:
show_instance_file(instance, "buffer_size_kb");
stop = 1;
break;
case OPT_buffer_total_size_kb:
show_instance_file(instance, "buffer_total_size_kb");
stop = 1;
break;
case OPT_ftrace_filter:
show_instance_file(instance, "set_ftrace_filter");
stop = 1;
break;
case OPT_ftrace_notrace:
show_instance_file(instance, "set_ftrace_notrace");
stop = 1;
break;
case OPT_ftrace_pid:
show_instance_file(instance, "set_ftrace_pid");
stop = 1;
break;
case OPT_graph_function:
show_instance_file(instance, "set_graph_function");
stop = 1;
break;
case OPT_graph_notrace:
show_instance_file(instance, "set_graph_notrace");
stop = 1;
break;
case OPT_cpumask:
show_instance_file(instance, "tracing_cpumask");
stop = 1;
break;
default:
usage(argv);
}
}
if (stop)
exit(0);
if (pipe)
file = "trace_pipe";
else if (snap)
file = "snapshot";
if (cpu) {
snprintf(cpu_path, 128, "per_cpu/cpu%d/%s", atoi(cpu), file);
file = cpu_path;
}
if (buffer) {
path = malloc(strlen(buffer) + strlen("instances//") +
strlen(file) + 1);
if (path)
die("Failed to allocate instance path %s", file);
sprintf(path, "instances/%s/%s", buffer, file);
file = path;
}
if (show_name) {
char *name;
name = tracecmd_get_tracing_file(file);
printf("%s\n", name);
tracecmd_put_tracing_file(name);
}
show_file(file);
if (buffer)
free(path);
exit(0);
} else if (strcmp(argv[1], "list") == 0) {
int events = 0;
int tracer = 0;
int options = 0;
int funcs = 0;
int buffers = 0;
int clocks = 0;
int plug = 0;
int plug_op = 0;
int flags = 0;
int show_all = 1;
int i;
const char *arg;
const char *funcre = NULL;
const char *eventre = NULL;
for (i = 2; i < argc; i++) {
arg = NULL;
if (argv[i][0] == '-') {
if (i < argc - 1) {
if (argv[i+1][0] != '-')
arg = argv[i+1];
}
switch (argv[i][1]) {
case 'h':
usage(argv);
break;
case 'e':
events = 1;
eventre = arg;
show_all = 0;
break;
case 'B':
buffers = 1;
show_all = 0;
break;
case 'C':
clocks = 1;
show_all = 0;
break;
case 'F':
flags |= SHOW_EVENT_FORMAT;
break;
case 'R':
flags |= SHOW_EVENT_TRIGGER;
break;
case 'l':
flags |= SHOW_EVENT_FILTER;
break;
case 'p':
case 't':
tracer = 1;
show_all = 0;
break;
case 'P':
plug = 1;
show_all = 0;
break;
case 'O':
plug_op = 1;
show_all = 0;
break;
case 'o':
options = 1;
show_all = 0;
break;
case 'f':
funcs = 1;
funcre = arg;
show_all = 0;
break;
default:
fprintf(stderr, "list: invalid option -- '%c'\n",
argv[optind][1]);
usage(argv);
}
}
}
if (events)
show_events(eventre, flags);
if (tracer)
show_tracers();
if (options)
show_options();
if (plug)
show_plugins();
if (plug_op)
show_plugin_options();
if (funcs)
show_functions(funcre);
if (buffers)
show_buffers();
if (clocks)
show_clocks();
if (show_all) {
printf("events:\n");
show_events(NULL, 0);
printf("\ntracers:\n");
show_tracers();
printf("\noptions:\n");
show_options();
}
exit(0);
} else if (strcmp(argv[1], "-h") == 0 ||
strcmp(argv[1], "help") == 0) {
usage(argv);
} else {
fprintf(stderr, "unknown command: %s\n", argv[1]);
usage(argv);
}
return 0;
}
ssize_t trace_report(int fd, struct pevent **ppevent, bool __repipe)
{
char buf[BUFSIZ];
char test[] = { 23, 8, 68 };
char *version;
int show_version = 0;
int show_funcs = 0;
int show_printk = 0;
ssize_t size = -1;
int file_bigendian;
int host_bigendian;
int file_long_size;
int file_page_size;
struct pevent *pevent;
int err;
*ppevent = NULL;
repipe = __repipe;
input_fd = fd;
if (do_read(buf, 3) < 0)
return -1;
if (memcmp(buf, test, 3) != 0) {
pr_debug("no trace data in the file");
return -1;
}
if (do_read(buf, 7) < 0)
return -1;
if (memcmp(buf, "tracing", 7) != 0) {
pr_debug("not a trace file (missing 'tracing' tag)");
return -1;
}
version = read_string();
if (version == NULL)
return -1;
if (show_version)
printf("version = %s\n", version);
free(version);
if (do_read(buf, 1) < 0)
return -1;
file_bigendian = buf[0];
host_bigendian = bigendian();
pevent = read_trace_init(file_bigendian, host_bigendian);
if (pevent == NULL) {
pr_debug("read_trace_init failed");
goto out;
}
if (do_read(buf, 1) < 0)
goto out;
file_long_size = buf[0];
file_page_size = read4(pevent);
if (!file_page_size)
goto out;
pevent_set_long_size(pevent, file_long_size);
pevent_set_page_size(pevent, file_page_size);
err = read_header_files(pevent);
if (err)
goto out;
err = read_ftrace_files(pevent);
if (err)
goto out;
err = read_event_files(pevent);
if (err)
goto out;
err = read_proc_kallsyms(pevent);
if (err)
goto out;
err = read_ftrace_printk(pevent);
if (err)
goto out;
size = trace_data_size;
repipe = false;
if (show_funcs) {
pevent_print_funcs(pevent);
} else if (show_printk) {
pevent_print_printk(pevent);
}
*ppevent = pevent;
pevent = NULL;
out:
if (pevent)
pevent_free(pevent);
return size;
}
/*
* Trace Capture Dialog Window
*
* +--------------------------------------------------------------------+
* | Dialog Window |
* | +-------------------------------+-------------------------------+ |
* | | Paned Window | +---------------------------+ | |
* | | +---------------------------+ | | Scroll window | | |
* | | | Hbox | | | +-----------------------+ | | |
* | | | Label Plugin Combo | | | | Event Tree | | | |
* | | +---------------------------+ | | | | | | |
* | | | | | | | | |
* | | | | +-----------------------+ | | |
* | | | +---------------------------+ | |
* | +-------------------------------+-------------------------------+ |
* +--------------------------------------------------------------------+
*/
static void tracing_dialog(struct shark_info *info, const char *tracing)
{
struct pevent *pevent;
GtkWidget *dialog;
GtkWidget *button;
GtkWidget *combo;
GtkWidget *label;
GtkWidget *entry;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *scrollwin;
GtkWidget *table;
GtkWidget *table2;
GtkWidget *event_tree;
GtkWidget *viewport;
GtkWidget *textview;
GtkWidget *hbox;
GtkTextBuffer *buffer;
GtkTextIter start_iter;
GtkTextIter end_iter;
char **plugins;
int nr_plugins;
struct trace_capture cap;
const gchar *file;
const char *command;
const char *val;
GString *str;
gint result;
memset(&cap, 0, sizeof(cap));
cap.info = info;
plugins = tracecmd_local_plugins(tracing);
/* Skip latency plugins */
nr_plugins = trim_plugins(plugins);
if (!nr_plugins && plugins) {
tracecmd_free_list(plugins);
plugins = NULL;
}
/* Send parse warnings to status display */
trace_dialog_register_alt_warning(vpr_stat);
pevent = tracecmd_local_events(tracing);
trace_dialog_register_alt_warning(NULL);
cap.pevent = pevent;
if (!pevent && !nr_plugins) {
warning("No events or plugins found");
return;
}
dialog = gtk_dialog_new();
gtk_window_set_title(GTK_WINDOW(dialog), "Capture");
button = gtk_button_new_with_label("Run");
gtk_dialog_add_action_widget(GTK_DIALOG(dialog), button,
GTK_RESPONSE_ACCEPT);
gtk_widget_show(button);
cap.run_button = button;
gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_CLOSE,
GTK_RESPONSE_REJECT);
cap.main_dialog = dialog;
/* --- Top Level Hpaned --- */
table = gtk_table_new(4, 2, FALSE);
/* It is possible that no pevents exist. */
if (pevent) {
scrollwin = gtk_scrolled_window_new(NULL, NULL);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrollwin),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_table_attach(GTK_TABLE(table), scrollwin, 0, 1, 1, 2,
GTK_FILL, GTK_FILL|GTK_EXPAND, 0, 0);
gtk_widget_show(scrollwin);
event_tree = trace_create_event_list_view(pevent, NULL,
cap.info->cap_all_events,
cap.info->cap_systems,
cap.info->cap_events);
gtk_container_add(GTK_CONTAINER(scrollwin), event_tree);
gtk_widget_show(event_tree);
cap.event_view = event_tree;
} else {
/* No events */
label = gtk_label_new("No events enabled on system");
gtk_table_attach(GTK_TABLE(table), label, 0, 1, 1, 2,
GTK_FILL, GTK_EXPAND|GTK_FILL,
0, 10);
gtk_widget_show(label);
cap.event_view = NULL;
}
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), table, TRUE, TRUE, 0);
gtk_widget_show(table);
/*------------------ Frame Settings --------------------------- */
frame = gtk_frame_new("Settings");
gtk_table_attach(GTK_TABLE(table), frame, 0, 1, 0, 1,
GTK_FILL, 0, 0, 10);
gtk_widget_show(frame);
table2 = gtk_table_new(2, 3, FALSE);
gtk_container_add(GTK_CONTAINER(frame), table2);
gtk_widget_show(table2);
gtk_table_set_col_spacings(GTK_TABLE(table2), 5);
button = gtk_button_new_with_label("Save Settings");
gtk_table_attach_defaults(GTK_TABLE(table2), button, 0, 1, 0, 1);
gtk_widget_show(button);
g_signal_connect (button, "clicked",
G_CALLBACK (save_settings_clicked),
(gpointer)&cap);
button = gtk_button_new_with_label("Import Settings");
gtk_table_attach_defaults(GTK_TABLE(table2), button, 1, 2, 0, 1);
gtk_widget_show(button);
g_signal_connect (button, "clicked",
G_CALLBACK (import_settings_clicked),
(gpointer)&cap);
button = gtk_button_new_with_label("Export Settings");
gtk_table_attach_defaults(GTK_TABLE(table2), button, 2, 3, 0, 1);
gtk_widget_show(button);
g_signal_connect (button, "clicked",
G_CALLBACK (export_settings_clicked),
(gpointer)&cap);
if (cap.info->cap_settings_name)
set_settings(&cap);
label = gtk_label_new("Available Settings: ");
gtk_table_attach_defaults(GTK_TABLE(table2), label, 0, 1, 1, 2);
gtk_widget_show(label);
combo = trace_create_combo_box(NULL, NULL,
create_settings_model, NULL);
gtk_table_attach_defaults(GTK_TABLE(table2), combo, 1, 3, 1, 2);
cap.settings_combo = combo;
g_signal_connect (combo, "changed",
G_CALLBACK (settings_changed),
(gpointer)&cap);
/*------------------ Frame Settings --------------------------- */
frame = gtk_frame_new("Execute");
gtk_table_attach(GTK_TABLE(table), frame, 0, 1, 3, 4,
GTK_FILL, 0, 0, 10);
gtk_widget_show(frame);
table2 = gtk_table_new(3, 3, FALSE);
gtk_container_add(GTK_CONTAINER(frame), table2);
gtk_widget_show(table2);
label = gtk_label_new("Plugin: ");
gtk_table_attach_defaults(GTK_TABLE(table2), label, 0, 1, 0, 1);
gtk_widget_show(label);
combo = trace_create_combo_box(NULL, NULL, create_plugin_combo_model, plugins);
cap.plugin_combo = combo;
gtk_table_attach_defaults(GTK_TABLE(table2), combo, 1, 3, 0, 1);
if (cap.info->cap_plugin)
set_plugin(&cap);
label = gtk_label_new("Command:");
gtk_table_attach_defaults(GTK_TABLE(table2), label, 0, 1, 1, 2);
gtk_widget_show(label);
entry = gtk_entry_new();
gtk_table_attach_defaults(GTK_TABLE(table2), entry, 1, 3, 1, 2);
gtk_widget_show(entry);
cap.command_entry = entry;
if (cap.info->cap_command)
gtk_entry_set_text(GTK_ENTRY(entry), cap.info->cap_command);
label = gtk_label_new("Output file: ");
gtk_table_attach_defaults(GTK_TABLE(table2), label, 0, 1, 2, 3);
gtk_widget_show(label);
entry = gtk_entry_new();
gtk_table_attach_defaults(GTK_TABLE(table2), entry, 1, 2, 2, 3);
gtk_widget_show(entry);
if (cap.info->cap_file)
file = cap.info->cap_file;
else
file = default_output_file;
gtk_entry_set_text(GTK_ENTRY(entry), file);
cap.file_entry = entry;
button = gtk_button_new_with_label("Browse");
gtk_table_attach_defaults(GTK_TABLE(table2), button, 2, 3, 2, 3);
gtk_widget_show(button);
g_signal_connect (button, "clicked",
G_CALLBACK (file_clicked),
(gpointer)&cap);
/*------------------ Command Output ------------------ */
vbox = gtk_vbox_new(FALSE, 0);
gtk_table_attach_defaults(GTK_TABLE(table), vbox, 1, 2, 0, 4);
gtk_widget_show(vbox);
gtk_widget_set_size_request(GTK_WIDGET(vbox), 500, 0);
label = gtk_label_new("Output Display:");
gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
gtk_widget_show(label);
scrollwin = gtk_scrolled_window_new(NULL, NULL);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrollwin),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_box_pack_start(GTK_BOX(vbox), scrollwin, TRUE, TRUE, 0);
gtk_widget_show(scrollwin);
viewport = gtk_viewport_new(NULL, NULL);
gtk_widget_show(viewport);
gtk_container_add(GTK_CONTAINER(scrollwin), viewport);
textview = gtk_text_view_new();
buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview));
gtk_container_add(GTK_CONTAINER(viewport), textview);
gtk_widget_show(textview);
cap.output_text = textview;
cap.output_buffer = buffer;
/* set the buffer from its previous setting */
if (info->cap_buffer_output)
gtk_text_buffer_set_text(buffer, info->cap_buffer_output,
strlen(info->cap_buffer_output));
hbox = gtk_hbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show(hbox);
label = gtk_label_new("Max # of characters in output display: ");
gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 0);
gtk_widget_show(label);
entry = gtk_entry_new();
gtk_box_pack_start(GTK_BOX(hbox), entry, FALSE, FALSE, 0);
gtk_widget_show(entry);
cap.max_num_entry = entry;
if (!info->cap_max_buf_size)
info->cap_max_buf_size = DEFAULT_MAX_BUF_SIZE;
str = g_string_new("");
g_string_append_printf(str, "%d", info->cap_max_buf_size);
gtk_entry_set_text(GTK_ENTRY(entry), str->str);
g_string_free(str, TRUE);
g_signal_connect (entry, "insert-text",
G_CALLBACK (insert_text),
(gpointer)&cap);
gtk_widget_set_size_request(GTK_WIDGET(dialog),
DIALOG_WIDTH, DIALOG_HEIGHT);
gtk_widget_show(dialog);
cont:
result = gtk_dialog_run(GTK_DIALOG(dialog));
if (result == GTK_RESPONSE_ACCEPT) {
execute_button_clicked(&cap);
goto cont;
}
/* Make sure no capture is running */
end_capture(&cap);
/* Get the max buffer size */
val = gtk_entry_get_text(GTK_ENTRY(entry));
info->cap_max_buf_size = atoi(val);
gtk_text_buffer_get_start_iter(cap.output_buffer, &start_iter);
gtk_text_buffer_get_end_iter(cap.output_buffer, &end_iter);
g_free(info->cap_buffer_output);
info->cap_buffer_output = gtk_text_buffer_get_text(cap.output_buffer,
&start_iter,
&end_iter,
FALSE);
/* save the plugin and file to reuse if we come back */
update_plugin(&cap);
free(info->cap_file);
cap.info->cap_file = strdup(gtk_entry_get_text(GTK_ENTRY(cap.file_entry)));
free(info->cap_command);
command = gtk_entry_get_text(GTK_ENTRY(cap.command_entry));
if (command && strlen(command) && !is_just_ws(command))
cap.info->cap_command = strdup(command);
else
cap.info->cap_command = NULL;
update_events(&cap);
gtk_widget_destroy(dialog);
if (pevent)
pevent_free(pevent);
if (plugins)
tracecmd_free_list(plugins);
}