/*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2020 Jérémie Galarneau <jeremie.galarneau@efficios.com>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
*
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#include <stdint.h>
#define _LGPL_SOURCE
#include <inttypes.h>
#include <popt.h>
#include <assert.h>
#include <common/mi-lttng.h>
-#include <lttng/constant.h>
+#include <common/time.h>
+#include <common/tracker.h>
+#include <lttng/lttng.h>
#include "../command.h"
const char *indent6 = " ";
const char *indent8 = " ";
+#ifdef LTTNG_EMBED_HELP
+static const char help_msg[] =
+#include <lttng-list.1.h>
+;
+#endif
+
enum {
OPT_HELP = 1,
OPT_USERSPACE,
OPT_LIST_OPTIONS,
};
-static struct lttng_handle *handle;
-static struct mi_writer *writer;
+static struct lttng_handle *the_handle;
+static struct mi_writer *the_writer;
+
+/* Only set when listing a single session. */
+static struct lttng_session the_listed_session;
static struct poptOption long_options[] = {
/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
return exclusion_msg;
}
+static void print_userspace_probe_location(struct lttng_event *event)
+{
+ const struct lttng_userspace_probe_location *location;
+ const struct lttng_userspace_probe_location_lookup_method *lookup_method;
+ enum lttng_userspace_probe_location_lookup_method_type lookup_type;
+
+ location = lttng_event_get_userspace_probe_location(event);
+ if (!location) {
+ MSG("Event has no userspace probe location");
+ return;
+ }
+
+ lookup_method = lttng_userspace_probe_location_get_lookup_method(location);
+ if (!lookup_method) {
+ MSG("Event has no userspace probe location lookup method");
+ return;
+ }
+
+ MSG("%s%s (type: userspace-probe)%s", indent6, event->name, enabled_string(event->enabled));
+
+ lookup_type = lttng_userspace_probe_location_lookup_method_get_type(lookup_method);
+
+ switch (lttng_userspace_probe_location_get_type(location)) {
+ case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_UNKNOWN:
+ MSG("%sType: Unknown", indent8);
+ break;
+ case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION:
+ {
+ const char *function_name;
+ char *binary_path;
+
+ MSG("%sType: Function", indent8);
+ function_name = lttng_userspace_probe_location_function_get_function_name(location);
+ binary_path = realpath(lttng_userspace_probe_location_function_get_binary_path(location), NULL);
+
+ MSG("%sBinary path: %s", indent8, binary_path ? binary_path : "NULL");
+ MSG("%sFunction: %s()", indent8, function_name ? function_name : "NULL");
+ switch (lookup_type) {
+ case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_FUNCTION_ELF:
+ MSG("%sLookup method: ELF", indent8);
+ break;
+ case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_FUNCTION_DEFAULT:
+ MSG("%sLookup method: default", indent8);
+ break;
+ default:
+ MSG("%sLookup method: INVALID LOOKUP TYPE ENCOUNTERED", indent8);
+ break;
+ }
+
+ free(binary_path);
+ break;
+ }
+ case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_TRACEPOINT:
+ {
+ const char *probe_name, *provider_name;
+ char *binary_path;
+
+ MSG("%sType: Tracepoint", indent8);
+ probe_name = lttng_userspace_probe_location_tracepoint_get_probe_name(location);
+ provider_name = lttng_userspace_probe_location_tracepoint_get_provider_name(location);
+ binary_path = realpath(lttng_userspace_probe_location_tracepoint_get_binary_path(location), NULL);
+ MSG("%sBinary path: %s", indent8, binary_path ? binary_path : "NULL");
+ MSG("%sTracepoint: %s:%s", indent8, provider_name ? provider_name : "NULL", probe_name ? probe_name : "NULL");
+ switch (lookup_type) {
+ case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_TRACEPOINT_SDT:
+ MSG("%sLookup method: SDT", indent8);
+ break;
+ default:
+ MSG("%sLookup method: INVALID LOOKUP TYPE ENCOUNTERED", indent8);
+ break;
+ }
+
+ free(binary_path);
+ break;
+ }
+ default:
+ ERR("Invalid probe type encountered");
+ }
+}
+
/*
* Pretty print single event.
*/
{
if (event->loglevel != -1) {
MSG("%s%s (loglevel%s %s (%d)) (type: tracepoint)%s%s%s",
- indent6,
- event->name,
- logleveltype_string(event->loglevel_type),
- mi_lttng_loglevel_string(event->loglevel, handle->domain.type),
- event->loglevel,
- enabled_string(event->enabled),
- safe_string(exclusion_msg),
- safe_string(filter_msg));
+ indent6, event->name,
+ logleveltype_string(
+ event->loglevel_type),
+ mi_lttng_loglevel_string(
+ event->loglevel,
+ the_handle->domain.type),
+ event->loglevel,
+ enabled_string(event->enabled),
+ safe_string(exclusion_msg),
+ safe_string(filter_msg));
} else {
MSG("%s%s (type: tracepoint)%s%s%s",
indent6,
MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name);
}
break;
+ case LTTNG_EVENT_USERSPACE_PROBE:
+ print_userspace_probe_location(event);
+ break;
case LTTNG_EVENT_FUNCTION_ENTRY:
MSG("%s%s (type: function)%s%s", indent6,
event->name, enabled_string(event->enabled),
safe_string(filter_msg));
break;
case LTTNG_EVENT_ALL:
+ /* Fall-through. */
+ default:
/* We should never have "all" events in list. */
assert(0);
break;
int pid_element_open = 0;
/* Open domains element */
- ret = mi_lttng_domains_open(writer);
+ ret = mi_lttng_domains_open(the_writer);
if (ret) {
goto end;
}
/* Write domain */
- ret = mi_lttng_domain(writer, domain, 1);
+ ret = mi_lttng_domain(the_writer, domain, 1);
if (ret) {
goto end;
}
/* Open pids element element */
- ret = mi_lttng_pids_open(writer);
+ ret = mi_lttng_pids_open(the_writer);
if (ret) {
goto end;
}
if (cur_pid != events[i].pid) {
if (pid_element_open) {
/* Close the previous events and pid element */
- ret = mi_lttng_close_multi_element(writer, 2);
+ ret = mi_lttng_close_multi_element(
+ the_writer, 2);
if (ret) {
goto end;
}
if (!pid_element_open) {
/* Open and write a pid element */
- ret = mi_lttng_pid(writer, cur_pid, cmdline, 1);
+ ret = mi_lttng_pid(the_writer, cur_pid, cmdline,
+ 1);
if (ret) {
goto error;
}
/* Open events element */
- ret = mi_lttng_events_open(writer);
+ ret = mi_lttng_events_open(the_writer);
if (ret) {
goto error;
}
}
/* Write an event */
- ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type);
+ ret = mi_lttng_event(the_writer, &events[i], 0,
+ the_handle->domain.type);
if (ret) {
goto end;
}
}
/* Close pids */
- ret = mi_lttng_writer_close_element(writer);
+ ret = mi_lttng_writer_close_element(the_writer);
if (ret) {
goto end;
}
/* Close domain, domains */
- ret = mi_lttng_close_multi_element(writer, 2);
+ ret = mi_lttng_close_multi_element(the_writer, 2);
end:
return ret;
error:
int event_element_open = 0;
struct lttng_event cur_event;
+ memset(&cur_event, 0, sizeof(cur_event));
+
/* Open domains element */
- ret = mi_lttng_domains_open(writer);
+ ret = mi_lttng_domains_open(the_writer);
if (ret) {
goto end;
}
/* Write domain */
- ret = mi_lttng_domain(writer, domain, 1);
+ ret = mi_lttng_domain(the_writer, domain, 1);
if (ret) {
goto end;
}
/* Open pids element */
- ret = mi_lttng_pids_open(writer);
+ ret = mi_lttng_pids_open(the_writer);
if (ret) {
goto end;
}
if (cur_pid != fields[i].event.pid) {
if (pid_element_open) {
if (event_element_open) {
-
/* Close the previous field element and event. */
- ret = mi_lttng_close_multi_element(writer, 2);
+ ret = mi_lttng_close_multi_element(
+ the_writer, 2);
if (ret) {
goto end;
}
event_element_open = 0;
}
/* Close the previous events, pid element */
- ret = mi_lttng_close_multi_element(writer, 2);
+ ret = mi_lttng_close_multi_element(
+ the_writer, 2);
if (ret) {
goto end;
}
cmdline = get_cmdline_by_pid(cur_pid);
if (!pid_element_open) {
/* Open and write a pid element */
- ret = mi_lttng_pid(writer, cur_pid, cmdline, 1);
+ ret = mi_lttng_pid(the_writer, cur_pid, cmdline,
+ 1);
if (ret) {
goto error;
}
/* Open events element */
- ret = mi_lttng_events_open(writer);
+ ret = mi_lttng_events_open(the_writer);
if (ret) {
goto error;
}
if (strcmp(cur_event.name, fields[i].event.name) != 0) {
if (event_element_open) {
/* Close the previous fields element and the previous event */
- ret = mi_lttng_close_multi_element(writer, 2);
+ ret = mi_lttng_close_multi_element(
+ the_writer, 2);
if (ret) {
goto end;
}
if (!event_element_open) {
/* Open and write the event */
- ret = mi_lttng_event(writer, &cur_event, 1,
- handle->domain.type);
+ ret = mi_lttng_event(the_writer, &cur_event, 1,
+ the_handle->domain.type);
if (ret) {
goto end;
}
/* Open a fields element */
- ret = mi_lttng_event_fields_open(writer);
+ ret = mi_lttng_event_fields_open(the_writer);
if (ret) {
goto end;
}
}
/* Print the event_field */
- ret = mi_lttng_event_field(writer, &fields[i]);
+ ret = mi_lttng_event_field(the_writer, &fields[i]);
if (ret) {
goto end;
}
}
- /* Close pid, domain, domains */
- ret = mi_lttng_close_multi_element(writer, 3);
+ /* Close pids, domain, domains */
+ ret = mi_lttng_close_multi_element(the_writer, 3);
end:
return ret;
error:
int ret, i;
/* Open domains element */
- ret = mi_lttng_domains_open(writer);
+ ret = mi_lttng_domains_open(the_writer);
if (ret) {
goto end;
}
/* Write domain */
- ret = mi_lttng_domain(writer, domain, 1);
+ ret = mi_lttng_domain(the_writer, domain, 1);
if (ret) {
goto end;
}
/* Open events */
- ret = mi_lttng_events_open(writer);
+ ret = mi_lttng_events_open(the_writer);
if (ret) {
goto end;
}
for (i = 0; i < count; i++) {
- ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type);
+ ret = mi_lttng_event(the_writer, &events[i], 0,
+ the_handle->domain.type);
if (ret) {
goto end;
}
}
/* close events, domain and domains */
- ret = mi_lttng_close_multi_element(writer, 3);
+ ret = mi_lttng_close_multi_element(the_writer, 3);
if (ret) {
goto end;
}
int ret, i;
/* Open events */
- ret = mi_lttng_events_open(writer);
+ ret = mi_lttng_events_open(the_writer);
if (ret) {
goto end;
}
for (i = 0; i < count; i++) {
- ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type);
+ ret = mi_lttng_event(the_writer, &events[i], 0,
+ the_handle->domain.type);
if (ret) {
goto end;
}
}
/* Close events. */
- ret = mi_lttng_writer_close_element(writer);
+ ret = mi_lttng_writer_close_element(the_writer);
if (ret) {
goto end;
}
int ret, i;
/* Open events element */
- ret = mi_lttng_events_open(writer);
+ ret = mi_lttng_events_open(the_writer);
if (ret) {
goto end;
}
for (i = 0; i < count; i++) {
- ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type);
+ ret = mi_lttng_event(the_writer, &events[i], 0,
+ the_handle->domain.type);
if (ret) {
goto end;
}
}
/* Close events element */
- ret = mi_lttng_writer_close_element(writer);
+ ret = mi_lttng_writer_close_element(the_writer);
end:
return ret;
int ret = CMD_SUCCESS, count, i;
struct lttng_event *events = NULL;
- count = lttng_list_events(handle, "", &events);
+ count = lttng_list_events(the_handle, "", &events);
if (count < 0) {
ret = CMD_ERROR;
ERR("%s", lttng_strerror(count));
event->name,
enabled_string(event->enabled),
logleveltype_string(
- event->loglevel_type),
+ event->loglevel_type),
mi_lttng_loglevel_string(
- event->loglevel,
- handle->domain.type),
+ event->loglevel,
+ the_handle->domain
+ .type),
safe_string(filter_msg));
} else {
MSG("%s- %s%s%s", indent4, event->name,
int ret, i;
/* Open events element */
- ret = mi_lttng_events_open(writer);
+ ret = mi_lttng_events_open(the_writer);
if (ret) {
goto end;
}
for (i = 0; i < count; i++) {
- ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type);
+ ret = mi_lttng_event(the_writer, &events[i], 0,
+ the_handle->domain.type);
if (ret) {
goto end;
}
}
/* Close events element */
- ret = mi_lttng_writer_close_element(writer);
+ ret = mi_lttng_writer_close_element(the_writer);
end:
return ret;
int ret = CMD_SUCCESS, count, i;
struct lttng_event *events = NULL;
- count = lttng_list_events(handle, channel_name, &events);
+ count = lttng_list_events(the_handle, channel_name, &events);
if (count < 0) {
ret = CMD_ERROR;
ERR("%s", lttng_strerror(count));
}
} else {
/* Pretty print */
- MSG("\n%sEvents:", indent4);
+ MSG("\n%sEvent rules:", indent4);
if (count == 0) {
MSG("%sNone\n", indent6);
goto end;
return ret;
}
+static
+void print_timer(const char *timer_name, uint32_t space_count, int64_t value)
+{
+ uint32_t i;
+
+ _MSG("%s%s:", indent6, timer_name);
+ for (i = 0; i < space_count; i++) {
+ _MSG(" ");
+ }
+
+ if (value) {
+ MSG("%" PRId64 " %s", value, USEC_UNIT);
+ } else {
+ MSG("inactive");
+ }
+}
+
/*
* Pretty print channel
*/
static void print_channel(struct lttng_channel *channel)
{
int ret;
- uint64_t discarded_events, lost_packets;
+ uint64_t discarded_events, lost_packets, monitor_timer_interval;
+ int64_t blocking_timeout;
ret = lttng_channel_get_discarded_event_count(channel,
&discarded_events);
return;
}
- MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled));
+ ret = lttng_channel_get_monitor_timer_interval(channel,
+ &monitor_timer_interval);
+ if (ret) {
+ ERR("Failed to retrieve monitor interval of channel");
+ return;
+ }
+
+ ret = lttng_channel_get_blocking_timeout(channel,
+ &blocking_timeout);
+ if (ret) {
+ ERR("Failed to retrieve blocking timeout of channel");
+ return;
+ }
+ MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled));
MSG("%sAttributes:", indent4);
- MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite);
- MSG("%ssubbufers size: %" PRIu64, indent6, channel->attr.subbuf_size);
- MSG("%snumber of subbufers: %" PRIu64, indent6, channel->attr.num_subbuf);
- MSG("%sswitch timer interval: %u", indent6, channel->attr.switch_timer_interval);
- MSG("%sread timer interval: %u", indent6, channel->attr.read_timer_interval);
- MSG("%strace file count: %" PRIu64, indent6, channel->attr.tracefile_count);
- MSG("%strace file size (bytes): %" PRIu64, indent6, channel->attr.tracefile_size);
- MSG("%sdiscarded events: %" PRIu64, indent6, discarded_events);
- MSG("%slost packets: %" PRIu64, indent6, lost_packets);
+ MSG("%sEvent-loss mode: %s", indent6, channel->attr.overwrite ? "overwrite" : "discard");
+ MSG("%sSub-buffer size: %" PRIu64 " bytes", indent6, channel->attr.subbuf_size);
+ MSG("%sSub-buffer count: %" PRIu64, indent6, channel->attr.num_subbuf);
+
+ print_timer("Switch timer", 5, channel->attr.switch_timer_interval);
+ print_timer("Read timer", 7, channel->attr.read_timer_interval);
+ print_timer("Monitor timer", 4, monitor_timer_interval);
+
+ if (!channel->attr.overwrite) {
+ if (blocking_timeout == -1) {
+ MSG("%sBlocking timeout: infinite", indent6);
+ } else {
+ MSG("%sBlocking timeout: %" PRId64 " %s", indent6,
+ blocking_timeout, USEC_UNIT);
+ }
+ }
+
+ MSG("%sTrace file count: %" PRIu64 " per stream", indent6,
+ channel->attr.tracefile_count == 0 ?
+ 1 : channel->attr.tracefile_count);
+ if (channel->attr.tracefile_size != 0 ) {
+ MSG("%sTrace file size: %" PRIu64 " bytes", indent6,
+ channel->attr.tracefile_size);
+ } else {
+ MSG("%sTrace file size: %s", indent6, "unlimited");
+ }
switch (channel->attr.output) {
case LTTNG_EVENT_SPLICE:
- MSG("%soutput: splice()", indent6);
+ MSG("%sOutput mode: splice", indent6);
break;
case LTTNG_EVENT_MMAP:
- MSG("%soutput: mmap()", indent6);
+ MSG("%sOutput mode: mmap", indent6);
break;
}
+
+ MSG("\n%sStatistics:", indent4);
+ if (the_listed_session.snapshot_mode) {
+ /*
+ * The lost packet count is omitted for sessions in snapshot
+ * mode as it is misleading: it would indicate the number of
+ * packets that the consumer could not extract during the
+ * course of recording the snapshot. It does not have the
+ * same meaning as the "regular" lost packet count that
+ * would result from the consumer not keeping up with
+ * event production in an overwrite-mode channel.
+ *
+ * A more interesting statistic would be the number of
+ * packets lost between the first and last extracted
+ * packets of a given snapshot (which prevents most analyses).
+ */
+ MSG("%sNone", indent6);
+ goto skip_stats_printing;
+ }
+
+ if (!channel->attr.overwrite) {
+ MSG("%sDiscarded events: %" PRIu64, indent6, discarded_events);
+ } else {
+ MSG("%sLost packets: %" PRIu64, indent6, lost_packets);
+ }
+skip_stats_printing:
+ return;
}
/*
unsigned int chan_found = 0;
/* Open channels element */
- ret = mi_lttng_channels_open(writer);
+ ret = mi_lttng_channels_open(the_writer);
if (ret) {
goto error;
}
}
/* Write channel element and leave it open */
- ret = mi_lttng_channel(writer, &channels[i], 1);
+ ret = mi_lttng_channel(the_writer, &channels[i], 1);
if (ret) {
goto error;
}
}
/* Closing the channel element we opened earlier */
- ret = mi_lttng_writer_close_element(writer);
+ ret = mi_lttng_writer_close_element(the_writer);
if (ret) {
goto error;
}
}
/* Close channels element */
- ret = mi_lttng_writer_close_element(writer);
+ ret = mi_lttng_writer_close_element(the_writer);
if (ret) {
goto error;
}
DBG("Listing channel(s) (%s)", channel_name ? : "<all>");
- count = lttng_list_channels(handle, &channels);
+ count = lttng_list_channels(the_handle, &channels);
if (count < 0) {
switch (-count) {
case LTTNG_ERR_KERN_CHAN_NOT_FOUND:
count = 0;
} else {
ret = CMD_SUCCESS;
- WARN("No kernel channel");
goto error_channels;
}
break;
return ret;
}
+static const char *get_capitalized_process_attr_str(enum lttng_process_attr process_attr)
+{
+ switch (process_attr) {
+ case LTTNG_PROCESS_ATTR_PROCESS_ID:
+ return "Process ID";
+ case LTTNG_PROCESS_ATTR_VIRTUAL_PROCESS_ID:
+ return "Virtual process ID";
+ case LTTNG_PROCESS_ATTR_USER_ID:
+ return "User ID";
+ case LTTNG_PROCESS_ATTR_VIRTUAL_USER_ID:
+ return "Virtual user ID";
+ case LTTNG_PROCESS_ATTR_GROUP_ID:
+ return "Group ID";
+ case LTTNG_PROCESS_ATTR_VIRTUAL_GROUP_ID:
+ return "Virtual group ID";
+ default:
+ return "Unknown";
+ }
+ return NULL;
+}
+
+static int handle_process_attr_status(enum lttng_process_attr process_attr,
+ enum lttng_process_attr_tracker_handle_status status)
+{
+ int ret = CMD_SUCCESS;
+
+ switch (status) {
+ case LTTNG_PROCESS_ATTR_TRACKER_HANDLE_STATUS_INVALID_TRACKING_POLICY:
+ case LTTNG_PROCESS_ATTR_TRACKER_HANDLE_STATUS_OK:
+ /* Carry on. */
+ break;
+ case LTTNG_PROCESS_ATTR_TRACKER_HANDLE_STATUS_COMMUNICATION_ERROR:
+ ERR("Communication occurred while fetching %s tracker",
+ lttng_process_attr_to_string(process_attr));
+ ret = CMD_ERROR;
+ break;
+ case LTTNG_PROCESS_ATTR_TRACKER_HANDLE_STATUS_SESSION_DOES_NOT_EXIST:
+ ERR("Failed to get the inclusion set of the %s tracker: session `%s` no longer exists",
+ lttng_process_attr_to_string(process_attr),
+ the_handle->session_name);
+ ret = CMD_ERROR;
+ break;
+ default:
+ ERR("Unknown error occurred while fetching the inclusion set of the %s tracker",
+ lttng_process_attr_to_string(process_attr));
+ ret = CMD_ERROR;
+ break;
+ }
+
+ return ret;
+}
+
+static int mi_output_empty_tracker(enum lttng_process_attr process_attr)
+{
+ int ret;
+
+ ret = mi_lttng_process_attribute_tracker_open(the_writer, process_attr);
+ if (ret) {
+ goto end;
+ }
+
+ ret = mi_lttng_close_multi_element(the_writer, 2);
+end:
+ return ret;
+}
+
+static inline bool is_value_type_name(
+ enum lttng_process_attr_value_type value_type)
+{
+ return value_type == LTTNG_PROCESS_ATTR_VALUE_TYPE_USER_NAME ||
+ value_type == LTTNG_PROCESS_ATTR_VALUE_TYPE_GROUP_NAME;
+}
+
/*
- * List tracker PID(s) of session and domain.
+ * List a process attribute tracker for a session and domain tuple.
*/
-static int list_tracker_pids(void)
+static int list_process_attr_tracker(enum lttng_process_attr process_attr)
{
int ret = 0;
- int enabled;
- int *pids = NULL;
- size_t nr_pids;
+ unsigned int count, i;
+ enum lttng_tracking_policy policy;
+ enum lttng_error_code ret_code;
+ enum lttng_process_attr_tracker_handle_status handle_status;
+ enum lttng_process_attr_values_status values_status;
+ const struct lttng_process_attr_values *values;
+ struct lttng_process_attr_tracker_handle *tracker_handle = NULL;
+
+ ret_code = lttng_session_get_tracker_handle(the_handle->session_name,
+ the_handle->domain.type, process_attr, &tracker_handle);
+ if (ret_code != LTTNG_OK) {
+ ERR("Failed to get process attribute tracker handle: %s",
+ lttng_strerror(ret_code));
+ ret = CMD_ERROR;
+ goto end;
+ }
- ret = lttng_list_tracker_pids(handle,
- &enabled, &pids, &nr_pids);
- if (ret) {
- return ret;
+ handle_status = lttng_process_attr_tracker_handle_get_inclusion_set(
+ tracker_handle, &values);
+ ret = handle_process_attr_status(process_attr, handle_status);
+ if (ret != CMD_SUCCESS) {
+ goto end;
}
- if (enabled) {
- int i;
- _MSG("PID tracker: [");
- /* Mi tracker_pid element*/
- if (writer) {
- /* Open tracker_pid and targets elements */
- ret = mi_lttng_pid_tracker_open(writer);
- if (ret) {
- goto end;
- }
+ handle_status = lttng_process_attr_tracker_handle_get_tracking_policy(
+ tracker_handle, &policy);
+ ret = handle_process_attr_status(process_attr, handle_status);
+ if (ret != CMD_SUCCESS) {
+ goto end;
+ }
+
+ {
+ char *process_attr_name;
+ const int print_ret = asprintf(&process_attr_name, "%ss:",
+ get_capitalized_process_attr_str(process_attr));
+
+ if (print_ret == -1) {
+ ret = CMD_FATAL;
+ goto end;
}
+ _MSG(" %-22s", process_attr_name);
+ free(process_attr_name);
+ }
+ switch (policy) {
+ case LTTNG_TRACKING_POLICY_INCLUDE_SET:
+ break;
+ case LTTNG_TRACKING_POLICY_EXCLUDE_ALL:
+ if (the_writer) {
+ mi_output_empty_tracker(process_attr);
+ }
+ MSG("none");
+ ret = CMD_SUCCESS;
+ goto end;
+ case LTTNG_TRACKING_POLICY_INCLUDE_ALL:
+ MSG("all");
+ ret = CMD_SUCCESS;
+ goto end;
+ default:
+ ERR("Unknown tracking policy encoutered while listing the %s process attribute tracker of session `%s`",
+ lttng_process_attr_to_string(process_attr),
+ the_handle->session_name);
+ ret = CMD_FATAL;
+ goto end;
+ }
- for (i = 0; i < nr_pids; i++) {
- if (i) {
- _MSG(",");
- }
- _MSG(" %d", pids[i]);
+ values_status = lttng_process_attr_values_get_count(values, &count);
+ if (values_status != LTTNG_PROCESS_ATTR_VALUES_STATUS_OK) {
+ ERR("Failed to get the count of values in the inclusion set of the %s process attribute tracker of session `%s`",
+ lttng_process_attr_to_string(process_attr),
+ the_handle->session_name);
+ ret = CMD_FATAL;
+ goto end;
+ }
- /* Mi */
- if (writer) {
- ret = mi_lttng_pid_target(writer, pids[i], 0);
- if (ret) {
- goto end;
- }
- }
+ if (count == 0) {
+ /* Functionally equivalent to the 'exclude all' policy. */
+ if (the_writer) {
+ mi_output_empty_tracker(process_attr);
}
- _MSG(" ]\n\n");
+ MSG("none");
+ ret = CMD_SUCCESS;
+ goto end;
+ }
- /* Mi close tracker_pid and targets */
- if (writer) {
- ret = mi_lttng_close_multi_element(writer,2);
+ /* Mi tracker_id element */
+ if (the_writer) {
+ /* Open tracker_id and targets elements */
+ ret = mi_lttng_process_attribute_tracker_open(
+ the_writer, process_attr);
+ if (ret) {
+ goto end;
+ }
+ }
+
+ for (i = 0; i < count; i++) {
+ const enum lttng_process_attr_value_type value_type =
+ lttng_process_attr_values_get_type_at_index(
+ values, i);
+ int64_t integral_value = INT64_MAX;
+ const char *name = "error";
+
+ if (i >= 1) {
+ _MSG(", ");
+ }
+ switch (value_type) {
+ case LTTNG_PROCESS_ATTR_VALUE_TYPE_PID:
+ {
+ pid_t pid;
+
+ values_status = lttng_process_attr_values_get_pid_at_index(
+ values, i, &pid);
+ integral_value = (int64_t) pid;
+ break;
+ }
+ case LTTNG_PROCESS_ATTR_VALUE_TYPE_UID:
+ {
+ uid_t uid;
+
+ values_status = lttng_process_attr_values_get_uid_at_index(
+ values, i, &uid);
+ integral_value = (int64_t) uid;
+ break;
+ }
+ case LTTNG_PROCESS_ATTR_VALUE_TYPE_GID:
+ {
+ gid_t gid;
+
+ values_status = lttng_process_attr_values_get_gid_at_index(
+ values, i, &gid);
+ integral_value = (int64_t) gid;
+ break;
+ }
+ case LTTNG_PROCESS_ATTR_VALUE_TYPE_USER_NAME:
+ values_status = lttng_process_attr_values_get_user_name_at_index(
+ values, i, &name);
+ break;
+ case LTTNG_PROCESS_ATTR_VALUE_TYPE_GROUP_NAME:
+ values_status = lttng_process_attr_values_get_group_name_at_index(
+ values, i, &name);
+ break;
+ default:
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ if (values_status != LTTNG_PROCESS_ATTR_VALUES_STATUS_OK) {
+ /*
+ * Not possible given the current liblttng-ctl
+ * implementation.
+ */
+ ERR("Unknown error occurred while fetching process attribute value in inclusion list");
+ ret = CMD_FATAL;
+ goto end;
+ }
+
+ if (is_value_type_name(value_type)) {
+ _MSG("`%s`", name);
+ } else {
+ _MSG("%" PRIi64, integral_value);
+ }
+
+ /* Mi */
+ if (the_writer) {
+ ret = is_value_type_name(value_type) ?
+ mi_lttng_string_process_attribute_value(
+ the_writer,
+ process_attr, name,
+ false) :
+ mi_lttng_integral_process_attribute_value(
+ the_writer,
+ process_attr,
+ integral_value, false);
if (ret) {
goto end;
}
}
}
+ MSG("");
+
+ /* Mi close tracker_id and targets */
+ if (the_writer) {
+ ret = mi_lttng_close_multi_element(the_writer, 2);
+ if (ret) {
+ goto end;
+ }
+ }
end:
- free(pids);
+ lttng_process_attr_tracker_handle_destroy(tracker_handle);
return ret;
-
}
/*
- * List all tracker of a domain
+ * List all trackers of a domain
*/
-static int list_trackers(void)
+static int list_trackers(const struct lttng_domain *domain)
{
- int ret;
+ int ret = 0;
+ MSG("Tracked process attributes");
/* Trackers listing */
if (lttng_opt_mi) {
- ret = mi_lttng_trackers_open(writer);
+ ret = mi_lttng_trackers_open(the_writer);
if (ret) {
goto end;
}
}
- /* pid tracker */
- ret = list_tracker_pids();
- if (ret) {
- goto end;
+ switch (domain->type) {
+ case LTTNG_DOMAIN_KERNEL:
+ /* pid tracker */
+ ret = list_process_attr_tracker(LTTNG_PROCESS_ATTR_PROCESS_ID);
+ if (ret) {
+ goto end;
+ }
+ /* vpid tracker */
+ ret = list_process_attr_tracker(
+ LTTNG_PROCESS_ATTR_VIRTUAL_PROCESS_ID);
+ if (ret) {
+ goto end;
+ }
+ /* uid tracker */
+ ret = list_process_attr_tracker(LTTNG_PROCESS_ATTR_USER_ID);
+ if (ret) {
+ goto end;
+ }
+ /* vuid tracker */
+ ret = list_process_attr_tracker(
+ LTTNG_PROCESS_ATTR_VIRTUAL_USER_ID);
+ if (ret) {
+ goto end;
+ }
+ /* gid tracker */
+ ret = list_process_attr_tracker(LTTNG_PROCESS_ATTR_GROUP_ID);
+ if (ret) {
+ goto end;
+ }
+ /* vgid tracker */
+ ret = list_process_attr_tracker(
+ LTTNG_PROCESS_ATTR_VIRTUAL_GROUP_ID);
+ if (ret) {
+ goto end;
+ }
+ break;
+ case LTTNG_DOMAIN_UST:
+ /* vpid tracker */
+ ret = list_process_attr_tracker(
+ LTTNG_PROCESS_ATTR_VIRTUAL_PROCESS_ID);
+ if (ret) {
+ goto end;
+ }
+ /* vuid tracker */
+ ret = list_process_attr_tracker(
+ LTTNG_PROCESS_ATTR_VIRTUAL_USER_ID);
+ if (ret) {
+ goto end;
+ }
+ /* vgid tracker */
+ ret = list_process_attr_tracker(
+ LTTNG_PROCESS_ATTR_VIRTUAL_GROUP_ID);
+ if (ret) {
+ goto end;
+ }
+ break;
+ default:
+ break;
}
-
+ MSG();
if (lttng_opt_mi) {
/* Close trackers element */
- ret = mi_lttng_writer_close_element(writer);
+ ret = mi_lttng_writer_close_element(the_writer);
if (ret) {
goto end;
}
return ret;
}
+static enum cmd_error_code print_periodic_rotation_schedule(
+ const struct lttng_rotation_schedule *schedule)
+{
+ enum cmd_error_code ret;
+ enum lttng_rotation_status status;
+ uint64_t value;
+
+ status = lttng_rotation_schedule_periodic_get_period(schedule,
+ &value);
+ if (status != LTTNG_ROTATION_STATUS_OK) {
+ ERR("Failed to retrieve period parameter from periodic rotation schedule.");
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ MSG(" timer period: %" PRIu64" %s", value, USEC_UNIT);
+ ret = CMD_SUCCESS;
+end:
+ return ret;
+}
+
+static enum cmd_error_code print_size_threshold_rotation_schedule(
+ const struct lttng_rotation_schedule *schedule)
+{
+ enum cmd_error_code ret;
+ enum lttng_rotation_status status;
+ uint64_t value;
+
+ status = lttng_rotation_schedule_size_threshold_get_threshold(schedule,
+ &value);
+ if (status != LTTNG_ROTATION_STATUS_OK) {
+ ERR("Failed to retrieve size parameter from size-based rotation schedule.");
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ MSG(" size threshold: %" PRIu64" bytes", value);
+ ret = CMD_SUCCESS;
+end:
+ return ret;
+}
+
+static enum cmd_error_code print_rotation_schedule(
+ const struct lttng_rotation_schedule *schedule)
+{
+ enum cmd_error_code ret;
+
+ switch (lttng_rotation_schedule_get_type(schedule)) {
+ case LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD:
+ ret = print_size_threshold_rotation_schedule(schedule);
+ break;
+ case LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC:
+ ret = print_periodic_rotation_schedule(schedule);
+ break;
+ default:
+ ret = CMD_ERROR;
+ }
+ return ret;
+}
+
+/*
+ * List the automatic rotation settings.
+ */
+static enum cmd_error_code list_rotate_settings(const char *session_name)
+{
+ int ret;
+ enum cmd_error_code cmd_ret = CMD_SUCCESS;
+ unsigned int count, i;
+ struct lttng_rotation_schedules *schedules = NULL;
+ enum lttng_rotation_status status;
+
+ ret = lttng_session_list_rotation_schedules(session_name, &schedules);
+ if (ret != LTTNG_OK) {
+ ERR("Failed to list session rotation schedules: %s", lttng_strerror(ret));
+ cmd_ret = CMD_ERROR;
+ goto end;
+ }
+
+ status = lttng_rotation_schedules_get_count(schedules, &count);
+ if (status != LTTNG_ROTATION_STATUS_OK) {
+ ERR("Failed to retrieve the number of session rotation schedules.");
+ cmd_ret = CMD_ERROR;
+ goto end;
+ }
+
+ if (count == 0) {
+ cmd_ret = CMD_SUCCESS;
+ goto end;
+ }
+
+ MSG("Automatic rotation schedules:");
+ if (lttng_opt_mi) {
+ ret = mi_lttng_writer_open_element(the_writer,
+ mi_lttng_element_rotation_schedules);
+ if (ret) {
+ cmd_ret = CMD_ERROR;
+ goto end;
+ }
+ }
+
+ for (i = 0; i < count; i++) {
+ enum cmd_error_code tmp_ret = CMD_SUCCESS;
+ const struct lttng_rotation_schedule *schedule;
+
+ schedule = lttng_rotation_schedules_get_at_index(schedules, i);
+ if (!schedule) {
+ ERR("Failed to retrieve session rotation schedule.");
+ cmd_ret = CMD_ERROR;
+ goto end;
+ }
+
+ if (lttng_opt_mi) {
+ ret = mi_lttng_rotation_schedule(the_writer, schedule);
+ if (ret) {
+ tmp_ret = CMD_ERROR;
+ }
+ } else {
+ tmp_ret = print_rotation_schedule(schedule);
+ }
+
+ /*
+ * Report an error if the serialization of any of the
+ * descriptors failed.
+ */
+ cmd_ret = cmd_ret ? cmd_ret : tmp_ret;
+ }
+
+ _MSG("\n");
+ if (lttng_opt_mi) {
+ /* Close the rotation_schedules element. */
+ ret = mi_lttng_writer_close_element(the_writer);
+ if (ret) {
+ cmd_ret = CMD_ERROR;
+ goto end;
+ }
+ }
+end:
+ lttng_rotation_schedules_destroy(schedules);
+ return cmd_ret;
+}
+
/*
* Machine interface
* Find the session with session_name as name
/* We need to leave it open to append other informations
* like domain, channel, events etc.*/
session_found = 1;
- ret = mi_lttng_session(writer, &sessions[i], 1);
+ ret = mi_lttng_session(the_writer, &sessions[i], 1);
if (ret) {
goto end;
}
int ret, i;
/* Opening sessions element */
- ret = mi_lttng_sessions_open(writer);
+ ret = mi_lttng_sessions_open(the_writer);
if (ret) {
goto end;
}
/* Listing sessions */
for (i = 0; i < count; i++) {
- ret = mi_lttng_session(writer, &sessions[i], 0);
+ ret = mi_lttng_session(the_writer, &sessions[i], 0);
if (ret) {
goto end;
}
}
/* Closing sessions element */
- ret = mi_lttng_writer_close_element(writer);
+ ret = mi_lttng_writer_close_element(the_writer);
if (ret) {
goto end;
}
int ret = CMD_SUCCESS;
int count, i;
unsigned int session_found = 0;
- struct lttng_session *sessions;
+ struct lttng_session *sessions = NULL;
count = lttng_list_sessions(&sessions);
DBG("Session count %d", count);
if (lttng_opt_mi) {
/* Mi */
if (session_name == NULL) {
- /* List all session */
+ /* List all sessions */
ret = mi_list_sessions(sessions, count);
} else {
/* Note : this return an open session element */
}
if (ret) {
ret = CMD_ERROR;
- goto error;
+ goto end;
}
} else {
/* Pretty print */
MSG("Available tracing sessions:");
}
-
for (i = 0; i < count; i++) {
if (session_name != NULL) {
if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) {
MSG("Tracing session %s: [%s%s]", session_name,
active_string(sessions[i].enabled),
snapshot_string(sessions[i].snapshot_mode));
- MSG("%sTrace path: %s\n", indent4, sessions[i].path);
+ if (*sessions[i].path) {
+ MSG("%sTrace output: %s\n", indent4, sessions[i].path);
+ }
+ memcpy(&the_listed_session,
+ &sessions[i],
+ sizeof(the_listed_session));
break;
}
} else {
- MSG(" %d) %s (%s) [%s%s]", i + 1,
- sessions[i].name, sessions[i].path,
+ MSG(" %d) %s [%s%s]", i + 1,
+ sessions[i].name,
active_string(sessions[i].enabled),
snapshot_string(sessions[i].snapshot_mode));
- MSG("%sTrace path: %s", indent4, sessions[i].path);
+ if (*sessions[i].path) {
+ MSG("%sTrace output: %s", indent4, sessions[i].path);
+ }
if (sessions[i].live_timer_interval != 0) {
- MSG("%sLive timer interval (usec): %u", indent4,
- sessions[i].live_timer_interval);
+ MSG("%sLive timer interval: %u %s", indent4,
+ sessions[i].live_timer_interval,
+ USEC_UNIT);
}
MSG("");
}
if (!session_found && session_name != NULL) {
ERR("Session '%s' not found", session_name);
ret = CMD_ERROR;
- goto error;
+ goto end;
}
if (session_name == NULL) {
}
}
-error:
- free(sessions);
end:
+ free(sessions);
return ret;
}
{
int i, ret;
/* Open domains element */
- ret = mi_lttng_domains_open(writer);
+ ret = mi_lttng_domains_open(the_writer);
if (ret) {
goto end;
}
for (i = 0; i < count; i++) {
- ret = mi_lttng_domain(writer, &domains[i] , 0);
+ ret = mi_lttng_domain(the_writer, &domains[i], 0);
if (ret) {
goto end;
}
}
/* Closing domains element */
- ret = mi_lttng_writer_close_element(writer);
+ ret = mi_lttng_writer_close_element(the_writer);
if (ret) {
goto end;
}
int cmd_list(int argc, const char **argv)
{
int opt, ret = CMD_SUCCESS;
- const char *session_name;
+ const char *session_name, *leftover = NULL;
static poptContext pc;
struct lttng_domain domain;
struct lttng_domain *domains = NULL;
/* Mi check */
if (lttng_opt_mi) {
- writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi);
- if (!writer) {
+ the_writer = mi_lttng_writer_create(
+ fileno(stdout), lttng_opt_mi);
+ if (!the_writer) {
ret = CMD_ERROR;
goto end;
}
/* Open command element */
- ret = mi_lttng_writer_command_open(writer,
- mi_lttng_element_command_list);
+ ret = mi_lttng_writer_command_open(
+ the_writer, mi_lttng_element_command_list);
if (ret) {
ret = CMD_ERROR;
goto end;
}
/* Open output element */
- ret = mi_lttng_writer_open_element(writer,
- mi_lttng_element_command_output);
+ ret = mi_lttng_writer_open_element(
+ the_writer, mi_lttng_element_command_output);
if (ret) {
ret = CMD_ERROR;
goto end;
session_name = poptGetArg(pc);
DBG2("Session name: %s", session_name);
+ leftover = poptGetArg(pc);
+ if (leftover) {
+ ERR("Unknown argument: %s", leftover);
+ ret = CMD_ERROR;
+ goto end;
+ }
+
if (opt_kernel) {
domain.type = LTTNG_DOMAIN_KERNEL;
} else if (opt_userspace) {
}
if (opt_kernel || opt_userspace || opt_jul || opt_log4j || opt_python) {
- handle = lttng_create_handle(session_name, &domain);
- if (handle == NULL) {
+ the_handle = lttng_create_handle(session_name, &domain);
+ if (the_handle == NULL) {
ret = CMD_FATAL;
goto end;
}
if (lttng_opt_mi) {
/* Open element sessions
* Present for xml consistency */
- ret = mi_lttng_sessions_open(writer);
+ ret = mi_lttng_sessions_open(the_writer);
if (ret) {
goto end;
}
goto end;
}
+ ret = list_rotate_settings(session_name);
+ if (ret) {
+ goto end;
+ }
+
/* Domain listing */
if (opt_domain) {
ret = list_domains(session_name);
/* Add of domains and domain element for xml
* consistency and validation
*/
- ret = mi_lttng_domains_open(writer);
+ ret = mi_lttng_domains_open(the_writer);
if (ret) {
goto end;
}
/* Open domain and leave it open for
* nested channels printing */
- ret = mi_lttng_domain(writer, &domain, 1);
+ ret = mi_lttng_domain(the_writer, &domain, 1);
if (ret) {
goto end;
}
/* Trackers */
- ret = list_trackers();
+ ret = list_trackers(&domain);
if (ret) {
goto end;
}
if (lttng_opt_mi) {
/* Close domain and domain element */
- ret = mi_lttng_close_multi_element(writer, 2);
+ ret = mi_lttng_close_multi_element(
+ the_writer, 2);
}
if (ret) {
goto end;
}
if (lttng_opt_mi) {
- ret = mi_lttng_domains_open(writer);
+ ret = mi_lttng_domains_open(the_writer);
if (ret) {
ret = CMD_ERROR;
goto end;
for (i = 0; i < nb_domain; i++) {
switch (domains[i].type) {
case LTTNG_DOMAIN_KERNEL:
- MSG("=== Domain: Kernel ===\n");
+ MSG("=== Domain: Linux kernel ===\n");
break;
case LTTNG_DOMAIN_UST:
- MSG("=== Domain: UST global ===\n");
- MSG("Buffer type: %s\n",
+ MSG("=== Domain: User space ===\n");
+ MSG("Buffering scheme: %s\n",
domains[i].buf_type ==
- LTTNG_BUFFER_PER_PID ? "per PID" : "per UID");
+ LTTNG_BUFFER_PER_PID ? "per-process" : "per-user");
break;
case LTTNG_DOMAIN_JUL:
- MSG("=== Domain: JUL (Java Util Logging) ===\n");
+ MSG("=== Domain: java.util.logging (JUL) ===\n");
break;
case LTTNG_DOMAIN_LOG4J:
- MSG("=== Domain: LOG4j (Logging for Java) ===\n");
+ MSG("=== Domain: log4j ===\n");
break;
case LTTNG_DOMAIN_PYTHON:
- MSG("=== Domain: Python (logging) ===\n");
+ MSG("=== Domain: Python logging ===\n");
break;
default:
MSG("=== Domain: Unimplemented ===\n");
}
if (lttng_opt_mi) {
- ret = mi_lttng_domain(writer, &domains[i], 1);
+ ret = mi_lttng_domain(the_writer,
+ &domains[i], 1);
if (ret) {
ret = CMD_ERROR;
goto end;
}
/* Clean handle before creating a new one */
- if (handle) {
- lttng_destroy_handle(handle);
+ if (the_handle) {
+ lttng_destroy_handle(the_handle);
}
- handle = lttng_create_handle(session_name, &domains[i]);
- if (handle == NULL) {
+ the_handle = lttng_create_handle(
+ session_name, &domains[i]);
+ if (the_handle == NULL) {
ret = CMD_FATAL;
goto end;
}
switch (domains[i].type) {
case LTTNG_DOMAIN_KERNEL:
case LTTNG_DOMAIN_UST:
- ret = list_trackers();
+ ret = list_trackers(&domains[i]);
if (ret) {
goto end;
}
next_domain:
if (lttng_opt_mi) {
/* Close domain element */
- ret = mi_lttng_writer_close_element(writer);
+ ret = mi_lttng_writer_close_element(
+ the_writer);
if (ret) {
ret = CMD_ERROR;
goto end;
}
if (lttng_opt_mi) {
/* Close the domains, session and sessions element */
- ret = mi_lttng_close_multi_element(writer, 3);
+ ret = mi_lttng_close_multi_element(
+ the_writer, 3);
if (ret) {
ret = CMD_ERROR;
goto end;
/* Mi closing */
if (lttng_opt_mi) {
/* Close output element */
- ret = mi_lttng_writer_close_element(writer);
+ ret = mi_lttng_writer_close_element(the_writer);
if (ret) {
ret = CMD_ERROR;
goto end;
}
/* Command element close */
- ret = mi_lttng_writer_command_close(writer);
+ ret = mi_lttng_writer_command_close(the_writer);
if (ret) {
ret = CMD_ERROR;
goto end;
}
end:
/* Mi clean-up */
- if (writer && mi_lttng_writer_destroy(writer)) {
+ if (the_writer && mi_lttng_writer_destroy(the_writer)) {
/* Preserve original error code */
ret = ret ? ret : -LTTNG_ERR_MI_IO_FAIL;
}
free(domains);
- if (handle) {
- lttng_destroy_handle(handle);
+ if (the_handle) {
+ lttng_destroy_handle(the_handle);
}
poptFreeContext(pc);
projects / lttng-tools.git / blobdiff