LTTNG_HIDDEN const char * const config_element_process_attr_vgid_value = "vgid";
LTTNG_HIDDEN const char * const config_element_process_attr_tracker_type = "process_attr_tracker_type";
+/* Used for support of legacy tracker serialization (< 2.12). */
+LTTNG_HIDDEN const char * const config_element_trackers_legacy = "trackers";
+LTTNG_HIDDEN const char * const config_element_pid_tracker_legacy = "pid_tracker";
+LTTNG_HIDDEN const char * const config_element_tracker_targets_legacy = "targets";
+LTTNG_HIDDEN const char * const config_element_tracker_pid_target_legacy = "pid_target";
+LTTNG_HIDDEN const char * const config_element_tracker_pid_legacy = "pid";
+
LTTNG_HIDDEN const char * const config_element_rotation_schedules = "rotation_schedules";
LTTNG_HIDDEN const char * const config_element_rotation_schedule_periodic = "periodic";
LTTNG_HIDDEN const char * const config_element_rotation_schedule_periodic_time_us = "time_us";
return ret;
}
+static int process_legacy_pid_tracker_node(
+ xmlNodePtr trackers_node, struct lttng_handle *handle)
+{
+ int ret = 0, child_count;
+ xmlNodePtr targets_node = NULL;
+ xmlNodePtr node;
+ const char *element_id_tracker;
+ const char *element_target_id;
+ const char *element_id;
+ const char *element_id_alias;
+ const char *element_name;
+ enum lttng_error_code tracker_handle_ret_code;
+ struct lttng_process_attr_tracker_handle *tracker_handle = NULL;
+ enum lttng_process_attr_tracker_handle_status status;
+ const enum lttng_process_attr process_attr =
+ handle->domain.type == LTTNG_DOMAIN_UST ?
+ LTTNG_PROCESS_ATTR_VIRTUAL_PROCESS_ID :
+ LTTNG_PROCESS_ATTR_PROCESS_ID;
+
+ assert(handle);
+
+ tracker_handle_ret_code = lttng_session_get_tracker_handle(
+ handle->session_name, handle->domain.type,
+ process_attr,
+ &tracker_handle);
+ if (tracker_handle_ret_code != LTTNG_OK) {
+ ret = LTTNG_ERR_INVALID;
+ goto end;
+ }
+
+ ret = get_tracker_elements(process_attr, &element_id_tracker,
+ &element_target_id, &element_id, &element_id_alias,
+ &element_name);
+ if (ret) {
+ goto end;
+ }
+
+ /* Get the targets node */
+ for (node = xmlFirstElementChild(trackers_node); node;
+ node = xmlNextElementSibling(node)) {
+ if (!strcmp((const char *) node->name,
+ config_element_tracker_targets_legacy)) {
+ targets_node = node;
+ break;
+ }
+ }
+
+ if (!targets_node) {
+ ret = LTTNG_ERR_INVALID;
+ goto end;
+ }
+
+ /* Go through all id target node */
+ child_count = xmlChildElementCount(targets_node);
+ status = lttng_process_attr_tracker_handle_set_tracking_policy(
+ tracker_handle,
+ child_count == 0 ? LTTNG_TRACKING_POLICY_EXCLUDE_ALL :
+ LTTNG_TRACKING_POLICY_INCLUDE_SET);
+ if (status != LTTNG_PROCESS_ATTR_TRACKER_HANDLE_STATUS_OK) {
+ ret = LTTNG_ERR_UNK;
+ goto end;
+ }
+
+ /* Add all tracked values. */
+ for (node = xmlFirstElementChild(targets_node); node;
+ node = xmlNextElementSibling(node)) {
+ xmlNodePtr pid_target_node = node;
+
+ /* get pid_target node and track it */
+ for (node = xmlFirstElementChild(pid_target_node); node;
+ node = xmlNextElementSibling(node)) {
+ if (!strcmp((const char *) node->name,
+ config_element_tracker_pid_legacy)) {
+ int64_t id;
+ xmlChar *content = xmlNodeGetContent(node);
+
+ if (!content) {
+ ret = LTTNG_ERR_LOAD_INVALID_CONFIG;
+ goto end;
+ }
+
+ ret = parse_int(content, &id);
+ free(content);
+ if (ret) {
+ ret = LTTNG_ERR_LOAD_INVALID_CONFIG;
+ goto end;
+ }
+
+ switch (process_attr) {
+ case LTTNG_PROCESS_ATTR_PROCESS_ID:
+ status = lttng_process_attr_process_id_tracker_handle_add_pid(
+ tracker_handle,
+ (pid_t) id);
+ break;
+ case LTTNG_PROCESS_ATTR_VIRTUAL_PROCESS_ID:
+ status = lttng_process_attr_virtual_process_id_tracker_handle_add_pid(
+ tracker_handle,
+ (pid_t) id);
+ break;
+ default:
+ ret = LTTNG_ERR_INVALID;
+ goto end;
+ }
+ }
+ switch (status) {
+ case LTTNG_PROCESS_ATTR_TRACKER_HANDLE_STATUS_OK:
+ continue;
+ case LTTNG_PROCESS_ATTR_TRACKER_HANDLE_STATUS_INVALID:
+ ret = LTTNG_ERR_INVALID;
+ break;
+ case LTTNG_PROCESS_ATTR_TRACKER_HANDLE_STATUS_EXISTS:
+ ret = LTTNG_ERR_PROCESS_ATTR_EXISTS;
+ break;
+ case LTTNG_PROCESS_ATTR_TRACKER_HANDLE_STATUS_MISSING:
+ ret = LTTNG_ERR_PROCESS_ATTR_MISSING;
+ break;
+ case LTTNG_PROCESS_ATTR_TRACKER_HANDLE_STATUS_ERROR:
+ case LTTNG_PROCESS_ATTR_TRACKER_HANDLE_STATUS_COMMUNICATION_ERROR:
+ default:
+ ret = LTTNG_ERR_UNK;
+ goto end;
+ }
+ }
+ node = pid_target_node;
+ }
+
+end:
+ lttng_process_attr_tracker_handle_destroy(tracker_handle);
+ return ret;
+ }
+
static int process_id_tracker_node(xmlNodePtr id_tracker_node,
struct lttng_handle *handle,
enum lttng_process_attr process_attr)
{
int ret = 0, child_count;
- xmlNodePtr targets_node = NULL;
+ xmlNodePtr values_node = NULL;
xmlNodePtr node;
const char *element_id_tracker;
const char *element_target_id;
goto end;
}
- /* get the targets node */
+ /* get the values node */
for (node = xmlFirstElementChild(id_tracker_node); node;
node = xmlNextElementSibling(node)) {
if (!strcmp((const char *) node->name,
config_element_process_attr_values)) {
- targets_node = node;
+ values_node = node;
break;
}
}
- if (!targets_node) {
+ if (!values_node) {
ret = LTTNG_ERR_INVALID;
goto end;
}
/* Go through all id target node */
- child_count = xmlChildElementCount(targets_node);
+ child_count = xmlChildElementCount(values_node);
status = lttng_process_attr_tracker_handle_set_tracking_policy(
tracker_handle,
child_count == 0 ? LTTNG_TRACKING_POLICY_EXCLUDE_ALL :
}
/* Add all tracked values. */
- for (node = xmlFirstElementChild(targets_node); node;
+ for (node = xmlFirstElementChild(values_node); node;
node = xmlNextElementSibling(node)) {
xmlNodePtr id_target_node = node;
for (node = xmlFirstElementChild(domain_node); node;
node = xmlNextElementSibling(node)) {
if (!strcmp((const char *) node->name,
- config_element_process_attr_trackers)) {
+ config_element_process_attr_trackers) ||
+ !strcmp((const char *) node->name,
+ config_element_trackers_legacy)) {
+ if (trackers_node) {
+ ERR("Only one instance of `%s` or `%s` is allowed in a session configuration",
+ config_element_process_attr_trackers,
+ config_element_trackers_legacy);
+ ret = -1;
+ goto end;
+ }
trackers_node = node;
break;
}
goto end;
}
}
+ if (!strcmp((const char *) node->name,
+ config_element_pid_tracker_legacy)) {
+ ret = process_legacy_pid_tracker_node(node, handle);
+ if (ret) {
+ goto end;
+ }
+ }
}
end:
--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+<sessions>
+ <session>
+ <name>tracker_legacy_selective</name>
+ <domains>
+ <domain>
+ <type>UST</type>
+ <buffer_type>PER_UID</buffer_type>
+ <channels>
+ <channel>
+ <name>channel0</name>
+ <enabled>true</enabled>
+ <overwrite_mode>DISCARD</overwrite_mode>
+ <subbuffer_size>524288</subbuffer_size>
+ <subbuffer_count>4</subbuffer_count>
+ <switch_timer_interval>0</switch_timer_interval>
+ <read_timer_interval>0</read_timer_interval>
+ <output_type>MMAP</output_type>
+ <blocking_timeout>0</blocking_timeout>
+ <monitor_timer_interval>1000000</monitor_timer_interval>
+ <tracefile_size>0</tracefile_size>
+ <tracefile_count>0</tracefile_count>
+ <live_timer_interval>0</live_timer_interval>
+ <events>
+ <event>
+ <name>*</name>
+ <enabled>true</enabled>
+ <type>TRACEPOINT</type>
+ <loglevel_type>ALL</loglevel_type>
+ </event>
+ </events>
+ <contexts/>
+ </channel>
+ </channels>
+ <trackers>
+ <pid_tracker>
+ <targets>
+ <pid_target>
+ <pid>42</pid>
+ </pid_target>
+ <pid_target>
+ <pid>1337</pid>
+ </pid_target>
+ </targets>
+ </pid_tracker>
+ </trackers>
+ </domain>
+ <domain>
+ <type>JUL</type>
+ <buffer_type>PER_UID</buffer_type>
+ <channels/>
+ </domain>
+ <domain>
+ <type>LOG4J</type>
+ <buffer_type>PER_UID</buffer_type>
+ <channels/>
+ </domain>
+ <domain>
+ <type>PYTHON</type>
+ <buffer_type>PER_UID</buffer_type>
+ <channels/>
+ </domain>
+ </domains>
+ <started>false</started>
+ <output>
+ <consumer_output>
+ <enabled>true</enabled>
+ <destination>
+ <path>/tmp/2.11/home/lttng-traces/tracker_legacy_selective-20200406-221328</path>
+ </destination>
+ </consumer_output>
+ </output>
+ </session>
+</sessions>
projects / lttng-tools.git / commitdiff
