#include "event.h"
#include "futex.h"
#include "hashtable.h"
-#include "kernel-ctl.h"
+#include "kernel.h"
#include "lttng-sessiond.h"
#include "shm.h"
#include "ust-app.h"
#include "ust-ctl.h"
#include "utils.h"
+#define CONSUMERD_FILE "lttng-consumerd"
+
struct consumer_data {
enum lttng_consumer_type type;
/* Consumer daemon specific control data */
static struct consumer_data kconsumer_data = {
.type = LTTNG_CONSUMER_KERNEL,
+ .err_unix_sock_path = KCONSUMERD_ERR_SOCK_PATH,
+ .cmd_unix_sock_path = KCONSUMERD_CMD_SOCK_PATH,
+};
+static struct consumer_data ustconsumer64_data = {
+ .type = LTTNG_CONSUMER64_UST,
+ .err_unix_sock_path = USTCONSUMERD64_ERR_SOCK_PATH,
+ .cmd_unix_sock_path = USTCONSUMERD64_CMD_SOCK_PATH,
};
-static struct consumer_data ustconsumer_data = {
- .type = LTTNG_CONSUMER_UST,
+static struct consumer_data ustconsumer32_data = {
+ .type = LTTNG_CONSUMER32_UST,
+ .err_unix_sock_path = USTCONSUMERD32_ERR_SOCK_PATH,
+ .cmd_unix_sock_path = USTCONSUMERD32_CMD_SOCK_PATH,
};
static int dispatch_thread_exit;
*/
static struct ltt_session_list *session_list_ptr;
-int ust_consumer_fd;
+int ust_consumerd64_fd = -1;
+int ust_consumerd32_fd = -1;
+
+static const char *consumerd32_bin =
+ __stringify(CONFIG_CONSUMERD32_BIN);
+static const char *consumerd64_bin =
+ __stringify(CONFIG_CONSUMERD64_BIN);
+static const char *consumerd32_libdir =
+ __stringify(CONFIG_CONSUMERD32_LIBDIR);
+static const char *consumerd64_libdir =
+ __stringify(CONFIG_CONSUMERD64_LIBDIR);
+
+static
+void setup_consumerd_path(void)
+{
+ const char *bin, *libdir;
+
+ /*
+ * Allow INSTALL_BIN_PATH to be used as a target path for the
+ * native architecture size consumer if CONFIG_CONSUMER*_PATH
+ * has not been defined.
+ */
+#if (CAA_BITS_PER_LONG == 32)
+ if (!consumerd32_bin[0]) {
+ consumerd32_bin = INSTALL_BIN_PATH "/" CONSUMERD_FILE;
+ }
+ if (!consumerd32_libdir[0]) {
+ consumerd32_libdir = INSTALL_LIB_PATH;
+ }
+#elif (CAA_BITS_PER_LONG == 64)
+ if (!consumerd64_bin[0]) {
+ consumerd64_bin = INSTALL_BIN_PATH "/" CONSUMERD_FILE;
+ }
+ if (!consumerd64_libdir[0]) {
+ consumerd64_libdir = INSTALL_LIB_PATH;
+ }
+#else
+#error "Unknown bitness"
+#endif
+
+ /*
+ * runtime env. var. overrides the build default.
+ */
+ bin = getenv("LTTNG_CONSUMERD32_BIN");
+ if (bin) {
+ consumerd32_bin = bin;
+ }
+ bin = getenv("LTTNG_CONSUMERD64_BIN");
+ if (bin) {
+ consumerd64_bin = bin;
+ }
+ libdir = getenv("LTTNG_TOOLS_CONSUMERD32_LIBDIR");
+ if (libdir) {
+ consumerd32_libdir = libdir;
+ }
+ libdir = getenv("LTTNG_TOOLS_CONSUMERD64_LIBDIR");
+ if (libdir) {
+ consumerd64_libdir = libdir;
+ }
+}
/*
* Create a poll set with O_CLOEXEC and add the thread quit pipe to the set.
*/
static void teardown_kernel_session(struct ltt_session *session)
{
- if (session->kernel_session != NULL) {
- DBG("Tearing down kernel session");
+ if (!session->kernel_session) {
+ DBG3("No kernel session when tearingdown session");
+ return;
+ }
- /*
- * If a custom kernel consumer was registered, close the socket before
- * tearing down the complete kernel session structure
- */
- if (session->kernel_session->consumer_fd != kconsumer_data.cmd_sock) {
- lttcomm_close_unix_sock(session->kernel_session->consumer_fd);
- }
+ DBG("Tearing down kernel session");
- trace_kernel_destroy_session(session->kernel_session);
- /* Extra precaution */
- session->kernel_session = NULL;
+ /*
+ * If a custom kernel consumer was registered, close the socket before
+ * tearing down the complete kernel session structure
+ */
+ if (session->kernel_session->consumer_fd != kconsumer_data.cmd_sock) {
+ lttcomm_close_unix_sock(session->kernel_session->consumer_fd);
}
+
+ trace_kernel_destroy_session(session->kernel_session);
}
/*
{
int ret;
+ if (!session->ust_session) {
+ DBG3("No UST session when tearingdown session");
+ return;
+ }
+
DBG("Tearing down UST session(s)");
ret = ust_app_destroy_trace_all(session->ust_session);
if (ret) {
ERR("Error in ust_app_destroy_trace_all");
}
+
trace_ust_destroy_session(session->ust_session);
}
/* Register applicaton to the session daemon */
ret = ust_app_register(&ust_cmd.reg_msg,
ust_cmd.sock);
- if (ret < 0) {
- /* Only critical ENOMEM error can be returned here */
+ if (ret == -ENOMEM) {
goto error;
+ } else if (ret < 0) {
+ break;
}
/*
{
int ret;
pid_t pid;
+ const char *consumer_to_use;
const char *verbosity;
+ struct stat st;
DBG("Spawning consumerd");
}
switch (consumer_data->type) {
case LTTNG_CONSUMER_KERNEL:
- execl(INSTALL_BIN_PATH "/lttng-consumerd",
- "lttng-consumerd", verbosity, "-k", NULL);
+ /*
+ * Find out which consumerd to execute. We will first
+ * try the 64-bit path, then the 32-bit one, then
+ * fallback on sessiond's installation directory.
+ */
+ if (stat(consumerd64_bin, &st) == 0) {
+ consumer_to_use = consumerd64_bin;
+ } else if (stat(consumerd32_bin, &st) == 0) {
+ consumer_to_use = consumerd32_bin;
+ } else if (stat(INSTALL_BIN_PATH "/" CONSUMERD_FILE, &st) == 0) {
+ consumer_to_use = INSTALL_BIN_PATH "/" CONSUMERD_FILE;
+ } else {
+ break;
+ }
+ DBG("Using kernel consumer at: %s", consumer_to_use);
+ execl(consumer_to_use,
+ "lttng-consumerd", verbosity, "-k",
+ "--consumerd-cmd-sock", consumer_data->cmd_unix_sock_path,
+ "--consumerd-err-sock", consumer_data->err_unix_sock_path,
+ NULL);
+ break;
+ case LTTNG_CONSUMER64_UST:
+ {
+ char *tmpnew = NULL;
+
+ if (consumerd64_libdir[0] != '\0') {
+ char *tmp;
+ size_t tmplen;
+
+ tmp = getenv("LD_LIBRARY_PATH");
+ if (!tmp) {
+ tmp = "";
+ }
+ tmplen = strlen("LD_LIBRARY_PATH=")
+ + strlen(consumerd64_libdir) + 1 /* : */ + strlen(tmp);
+ tmpnew = zmalloc(tmplen + 1 /* \0 */);
+ if (!tmpnew) {
+ ret = -ENOMEM;
+ goto error;
+ }
+ strcpy(tmpnew, "LD_LIBRARY_PATH=");
+ strcat(tmpnew, consumerd64_libdir);
+ if (tmp[0] != '\0') {
+ strcat(tmpnew, ":");
+ strcat(tmpnew, tmp);
+ }
+ ret = putenv(tmpnew);
+ if (ret) {
+ ret = -errno;
+ goto error;
+ }
+ }
+ DBG("Using 64-bit UST consumer at: %s", consumerd64_bin);
+ ret = execl(consumerd64_bin, verbosity, "-u",
+ "--consumerd-cmd-sock", consumer_data->cmd_unix_sock_path,
+ "--consumerd-err-sock", consumer_data->err_unix_sock_path,
+ NULL);
+ if (consumerd64_libdir[0] != '\0') {
+ free(tmpnew);
+ }
+ if (ret) {
+ goto error;
+ }
break;
- case LTTNG_CONSUMER_UST:
- execl(INSTALL_BIN_PATH "/lttng-consumerd",
- "lttng-consumerd", verbosity, "-u", NULL);
+ }
+ case LTTNG_CONSUMER32_UST:
+ {
+ char *tmpnew = NULL;
+
+ if (consumerd32_libdir[0] != '\0') {
+ char *tmp;
+ size_t tmplen;
+
+ tmp = getenv("LD_LIBRARY_PATH");
+ if (!tmp) {
+ tmp = "";
+ }
+ tmplen = strlen("LD_LIBRARY_PATH=")
+ + strlen(consumerd32_libdir) + 1 /* : */ + strlen(tmp);
+ tmpnew = zmalloc(tmplen + 1 /* \0 */);
+ if (!tmpnew) {
+ ret = -ENOMEM;
+ goto error;
+ }
+ strcpy(tmpnew, "LD_LIBRARY_PATH=");
+ strcat(tmpnew, consumerd32_libdir);
+ if (tmp[0] != '\0') {
+ strcat(tmpnew, ":");
+ strcat(tmpnew, tmp);
+ }
+ ret = putenv(tmpnew);
+ if (ret) {
+ ret = -errno;
+ goto error;
+ }
+ }
+ DBG("Using 32-bit UST consumer at: %s", consumerd32_bin);
+ ret = execl(consumerd32_bin, verbosity, "-u",
+ "--consumerd-cmd-sock", consumer_data->cmd_unix_sock_path,
+ "--consumerd-err-sock", consumer_data->err_unix_sock_path,
+ NULL);
+ if (consumerd32_libdir[0] != '\0') {
+ free(tmpnew);
+ }
+ if (ret) {
+ goto error;
+ }
break;
+ }
default:
perror("unknown consumer type");
exit(EXIT_FAILURE);
perror("start consumer fork");
ret = -errno;
}
+error:
return ret;
}
DBG("Creating UST session");
- session_lock_list();
- uid = session_list_ptr->count;
- session_unlock_list();
-
+ uid = session->uid;
lus = trace_ust_create_session(session->path, uid, domain);
if (lus == NULL) {
ret = LTTCOMM_UST_SESS_FAIL;
uchan->attr.switch_timer_interval;
channels[i].attr.read_timer_interval =
uchan->attr.read_timer_interval;
- channels[i].attr.output = uchan->attr.output;
+ channels[i].enabled = uchan->enabled;
+ switch (uchan->attr.output) {
+ case LTTNG_UST_MMAP:
+ default:
+ channels[i].attr.output = LTTNG_EVENT_MMAP;
+ break;
+ }
+ i++;
}
break;
}
int i = 0, ret = 0;
unsigned int nb_event = 0;
struct cds_lfht_iter iter;
+ struct cds_lfht_node *node;
struct ltt_ust_channel *uchan;
struct ltt_ust_event *uevent;
struct lttng_event *tmp;
rcu_read_lock();
- /* Count events in all channels */
- cds_lfht_for_each_entry(ust_global->channels, &iter, uchan, node) {
- nb_event += hashtable_get_count(uchan->events);
+ node = hashtable_lookup(ust_global->channels, (void *) channel_name,
+ strlen(channel_name), &iter);
+ if (node == NULL) {
+ ret = -LTTCOMM_UST_CHAN_NOT_FOUND;
+ goto error;
}
+ uchan = caa_container_of(node, struct ltt_ust_channel, node);
+
+ nb_event += hashtable_get_count(uchan->events);
+
if (nb_event == 0) {
ret = nb_event;
goto error;
goto error;
}
- cds_lfht_for_each_entry(ust_global->channels, &iter, uchan, node) {
- cds_lfht_for_each_entry(uchan->events, &iter, uevent, node) {
- strncpy(tmp[i].name, uevent->attr.name, LTTNG_SYMBOL_NAME_LEN);
- tmp[i].name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
- tmp[i].enabled = uevent->enabled;
- switch (uevent->attr.instrumentation) {
- case LTTNG_UST_TRACEPOINT:
- tmp[i].type = LTTNG_EVENT_TRACEPOINT;
- break;
- case LTTNG_UST_PROBE:
- tmp[i].type = LTTNG_EVENT_PROBE;
- break;
- case LTTNG_UST_FUNCTION:
- tmp[i].type = LTTNG_EVENT_FUNCTION;
- break;
- }
- i++;
+ cds_lfht_for_each_entry(uchan->events, &iter, uevent, node) {
+ strncpy(tmp[i].name, uevent->attr.name, LTTNG_SYMBOL_NAME_LEN);
+ tmp[i].name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
+ tmp[i].enabled = uevent->enabled;
+ switch (uevent->attr.instrumentation) {
+ case LTTNG_UST_TRACEPOINT:
+ tmp[i].type = LTTNG_EVENT_TRACEPOINT;
+ break;
+ case LTTNG_UST_PROBE:
+ tmp[i].type = LTTNG_EVENT_PROBE;
+ break;
+ case LTTNG_UST_FUNCTION:
+ tmp[i].type = LTTNG_EVENT_FUNCTION;
+ break;
+ case LTTNG_UST_TRACEPOINT_LOGLEVEL:
+ tmp[i].type = LTTNG_EVENT_TRACEPOINT_LOGLEVEL;
+ break;
}
+ i++;
}
ret = nb_event;
int domain, char *channel_name)
{
int ret;
+ struct ltt_ust_session *usess;
+
+ usess = session->ust_session;
switch (domain) {
- case LTTNG_DOMAIN_KERNEL:
- ret = channel_kernel_disable(session->kernel_session,
- channel_name);
- if (ret != LTTCOMM_OK) {
- goto error;
- }
+ case LTTNG_DOMAIN_KERNEL:
+ {
+ ret = channel_kernel_disable(session->kernel_session,
+ channel_name);
+ if (ret != LTTCOMM_OK) {
+ goto error;
+ }
- kernel_wait_quiescent(kernel_tracer_fd);
- break;
- case LTTNG_DOMAIN_UST_PID:
+ kernel_wait_quiescent(kernel_tracer_fd);
+ break;
+ }
+ case LTTNG_DOMAIN_UST:
+ {
+ struct ltt_ust_channel *uchan;
+
+ /* Get channel in global UST domain HT */
+ uchan = trace_ust_find_channel_by_name(usess->domain_global.channels,
+ channel_name);
+ if (uchan == NULL) {
+ ret = LTTCOMM_UST_CHAN_NOT_FOUND;
+ goto error;
+ }
+
+ /* Already disabled */
+ if (!uchan->enabled) {
+ DBG2("UST channel %s already disabled", channel_name);
break;
- default:
- ret = LTTCOMM_UNKNOWN_DOMAIN;
+ }
+
+ ret = ust_app_disable_channel_glb(usess, uchan);
+ if (ret < 0) {
+ ret = LTTCOMM_UST_DISABLE_FAIL;
goto error;
+ }
+
+ uchan->enabled = 0;
+
+ break;
+ }
+ case LTTNG_DOMAIN_UST_PID_FOLLOW_CHILDREN:
+ case LTTNG_DOMAIN_UST_EXEC_NAME:
+ case LTTNG_DOMAIN_UST_PID:
+ ret = LTTCOMM_NOT_IMPLEMENTED;
+ goto error;
+ default:
+ ret = LTTCOMM_UNKNOWN_DOMAIN;
+ goto error;
}
ret = LTTCOMM_OK;
* Command LTTNG_ENABLE_CHANNEL processed by the client thread.
*/
static int cmd_enable_channel(struct ltt_session *session,
- struct lttng_domain *domain, struct lttng_channel *attr)
+ int domain, struct lttng_channel *attr)
{
int ret;
struct ltt_ust_session *usess = session->ust_session;
DBG("Enabling channel %s for session %s", attr->name, session->name);
- switch (domain->type) {
+ switch (domain) {
case LTTNG_DOMAIN_KERNEL:
{
struct ltt_kernel_channel *kchan;
goto error;
}
+ /* Add channel to all registered applications */
+ ret = ust_app_create_channel_glb(usess, uchan);
+ if (ret != 0) {
+ ret = LTTCOMM_UST_CHAN_FAIL;
+ goto error;
+ }
+
rcu_read_lock();
hashtable_add_unique(usess->domain_global.channels, &uchan->node);
rcu_read_unlock();
+
DBG2("UST channel %s added to global domain HT", attr->name);
} else {
- ret = LTTCOMM_UST_CHAN_EXIST;
- goto error;
- }
+ /* If already enabled, everything is OK */
+ if (uchan->enabled) {
+ break;
+ }
- /* Add channel to all registered applications */
- ret = ust_app_create_channel_all(usess, uchan);
- if (ret != 0) {
- goto error;
+ ret = ust_app_enable_channel_glb(usess, uchan);
+ if (ret < 0) {
+ if (ret != -EEXIST) {
+ ret = LTTCOMM_UST_CHAN_ENABLE_FAIL;
+ goto error;
+ } else {
+ ret = LTTCOMM_OK;
+ }
+ }
}
uchan->enabled = 1;
break;
}
+ case LTTNG_DOMAIN_UST_PID_FOLLOW_CHILDREN:
+ case LTTNG_DOMAIN_UST_EXEC_NAME:
case LTTNG_DOMAIN_UST_PID:
- {
- /*
- int sock;
- struct ltt_ust_channel *uchan;
- struct ltt_ust_session *usess;
- struct ust_app *app;
-
- usess = trace_ust_get_session_by_pid(&session->ust_session_list,
- domain->attr.pid);
- if (usess == NULL) {
- ret = LTTCOMM_UST_CHAN_NOT_FOUND;
- goto error;
- }
-
- app = ust_app_get_by_pid(domain->attr.pid);
- if (app == NULL) {
- ret = LTTCOMM_APP_NOT_FOUND;
- goto error;
- }
- sock = app->sock;
-
- uchan = trace_ust_get_channel_by_name(attr->name, usess);
- if (uchan == NULL) {
- ret = channel_ust_create(usess, attr, sock);
- } else {
- ret = channel_ust_enable(usess, uchan, sock);
- }
-
- if (ret != LTTCOMM_OK) {
- goto error;
- }
-
- ret = copy_ust_channel_to_app(usess, attr, app);
- if (ret != LTTCOMM_OK) {
- goto error;
- }
-
- DBG("UST channel %s created for app sock %d with pid %d",
- attr->name, app->sock, domain->attr.pid);
- */
ret = LTTCOMM_NOT_IMPLEMENTED;
goto error;
- }
default:
ret = LTTCOMM_UNKNOWN_DOMAIN;
goto error;
case LTTNG_DOMAIN_KERNEL:
{
struct ltt_kernel_channel *kchan;
+ struct ltt_kernel_session *ksess;
- kchan = trace_kernel_get_channel_by_name(channel_name,
- session->kernel_session);
+ ksess = session->kernel_session;
+
+ kchan = trace_kernel_get_channel_by_name(channel_name, ksess);
if (kchan == NULL) {
ret = LTTCOMM_KERN_CHAN_NOT_FOUND;
goto error;
}
- ret = event_kernel_disable_tracepoint(session->kernel_session, kchan, event_name);
+ ret = event_kernel_disable_tracepoint(ksess, kchan, event_name);
if (ret != LTTCOMM_OK) {
goto error;
}
break;
}
case LTTNG_DOMAIN_UST:
+ {
+ struct ltt_ust_session *usess;
+ struct ltt_ust_channel *uchan;
+ struct ltt_ust_event *uevent;
+
+ usess = session->ust_session;
+
+ uchan = trace_ust_find_channel_by_name(usess->domain_global.channels,
+ channel_name);
+ if (uchan == NULL) {
+ ret = LTTCOMM_UST_CHAN_NOT_FOUND;
+ goto error;
+ }
+
+ uevent = trace_ust_find_event_by_name(uchan->events, event_name);
+ if (uevent == NULL) {
+ ret = LTTCOMM_UST_EVENT_NOT_FOUND;
+ goto error;
+ }
+
+ ret = ust_app_disable_event_glb(usess, uchan, uevent);
+ if (ret < 0) {
+ ret = LTTCOMM_UST_DISABLE_FAIL;
+ goto error;
+ }
+
+ uevent->enabled = 0;
+
+ DBG2("Disable UST event %s in channel %s completed", event_name,
+ channel_name);
+
+ break;
+ }
case LTTNG_DOMAIN_UST_EXEC_NAME:
case LTTNG_DOMAIN_UST_PID:
case LTTNG_DOMAIN_UST_PID_FOLLOW_CHILDREN:
default:
- /* TODO: Other UST domains */
ret = LTTCOMM_NOT_IMPLEMENTED;
goto error;
}
char *channel_name)
{
int ret;
- struct ltt_kernel_channel *kchan;
switch (domain) {
case LTTNG_DOMAIN_KERNEL:
- kchan = trace_kernel_get_channel_by_name(channel_name,
- session->kernel_session);
+ {
+ struct ltt_kernel_session *ksess;
+ struct ltt_kernel_channel *kchan;
+
+ ksess = session->kernel_session;
+
+ kchan = trace_kernel_get_channel_by_name(channel_name, ksess);
if (kchan == NULL) {
ret = LTTCOMM_KERN_CHAN_NOT_FOUND;
goto error;
}
- ret = event_kernel_disable_all(session->kernel_session, kchan);
+ ret = event_kernel_disable_all(ksess, kchan);
if (ret != LTTCOMM_OK) {
goto error;
}
kernel_wait_quiescent(kernel_tracer_fd);
break;
+ }
+ case LTTNG_DOMAIN_UST:
+ {
+ struct ltt_ust_session *usess;
+ struct ltt_ust_channel *uchan;
+
+ usess = session->ust_session;
+
+ uchan = trace_ust_find_channel_by_name(usess->domain_global.channels,
+ channel_name);
+ if (uchan == NULL) {
+ ret = LTTCOMM_UST_CHAN_NOT_FOUND;
+ goto error;
+ }
+
+ ret = ust_app_disable_all_event_glb(usess, uchan);
+ if (ret < 0) {
+ ret = LTTCOMM_UST_DISABLE_FAIL;
+ goto error;
+ }
+
+ DBG2("Disable all UST event in channel %s completed", channel_name);
+
+ break;
+ }
+ case LTTNG_DOMAIN_UST_EXEC_NAME:
+ case LTTNG_DOMAIN_UST_PID:
+ case LTTNG_DOMAIN_UST_PID_FOLLOW_CHILDREN:
default:
- /* TODO: Userspace tracing */
ret = LTTCOMM_NOT_IMPLEMENTED;
goto error;
}
break;
case LTTNG_DOMAIN_UST:
{
- /*
- struct ltt_ust_session *usess;
+ struct ltt_ust_session *usess = session->ust_session;
- cds_list_for_each_entry(usess, &session->ust_session_list.head, list) {
- ret = context_ust_add(usess, ctx,
- event_name, channel_name, domain);
- if (ret != LTTCOMM_OK) {
- goto error;
- }
+ ret = context_ust_add(usess, domain, ctx, event_name, channel_name);
+ if (ret != LTTCOMM_OK) {
+ goto error;
}
break;
- */
}
+ case LTTNG_DOMAIN_UST_EXEC_NAME:
+ case LTTNG_DOMAIN_UST_PID:
+ case LTTNG_DOMAIN_UST_PID_FOLLOW_CHILDREN:
default:
- /* TODO: UST other domains */
ret = LTTCOMM_NOT_IMPLEMENTED;
goto error;
}
/*
* Command LTTNG_ENABLE_EVENT processed by the client thread.
+ *
+ * TODO: currently, both events and loglevels are kept within the same
+ * namespace for UST global registry/app registery, so if an event
+ * happen to have the same name as the loglevel (very unlikely though),
+ * and an attempt is made to enable/disable both in the same session,
+ * the first to be created will be the only one allowed to exist.
*/
static int cmd_enable_event(struct ltt_session *session, int domain,
char *channel_name, struct lttng_event *event)
ret = channel_kernel_create(session->kernel_session,
attr, kernel_poll_pipe[1]);
if (ret != LTTCOMM_OK) {
+ free(attr);
goto error;
}
+ free(attr);
}
/* Get the newly created kernel channel pointer */
}
case LTTNG_DOMAIN_UST:
{
+ struct lttng_channel *attr;
struct ltt_ust_channel *uchan;
- struct ltt_ust_event *uevent;
+ /* Get channel from global UST domain */
uchan = trace_ust_find_channel_by_name(usess->domain_global.channels,
channel_name);
if (uchan == NULL) {
- /* TODO: Create default channel */
- ret = LTTCOMM_UST_CHAN_NOT_FOUND;
- goto error;
- }
-
- uevent = trace_ust_find_event_by_name(uchan->events, event->name);
- if (uevent == NULL) {
- uevent = trace_ust_create_event(event);
- if (uevent == NULL) {
+ /* Create default channel */
+ attr = channel_new_default_attr(domain);
+ if (attr == NULL) {
ret = LTTCOMM_FATAL;
goto error;
}
+ snprintf(attr->name, NAME_MAX, "%s", channel_name);
+ attr->name[NAME_MAX - 1] = '\0';
- }
+ /* Use the internal command enable channel */
+ ret = cmd_enable_channel(session, domain, attr);
+ if (ret != LTTCOMM_OK) {
+ free(attr);
+ goto error;
+ }
+ free(attr);
- ret = ust_app_create_event_all(usess, uchan, uevent);
- if (ret < 0) {
- ret = LTTCOMM_UST_ENABLE_FAIL;
- goto error;
+ /* Get the newly created channel reference back */
+ uchan = trace_ust_find_channel_by_name(
+ usess->domain_global.channels, channel_name);
+ if (uchan == NULL) {
+ /* Something is really wrong */
+ ret = LTTCOMM_FATAL;
+ goto error;
+ }
}
- /* Add ltt ust event to channel */
- rcu_read_lock();
- hashtable_add_unique(uchan->events, &uevent->node);
- rcu_read_unlock();
-
- uevent->enabled = 1;
+ /* At this point, the session and channel exist on the tracer */
- DBG3("UST ltt event %s added to channel %s", uevent->attr.name,
- uchan->name);
+ ret = event_ust_enable_tracepoint(usess, domain, uchan, event);
+ if (ret != LTTCOMM_OK) {
+ goto error;
+ }
break;
}
case LTTNG_DOMAIN_UST_EXEC_NAME:
if (ret != LTTCOMM_OK) {
goto error;
}
- }
- /* Get the newly created kernel channel pointer */
- kchan = trace_kernel_get_channel_by_name(channel_name,
- session->kernel_session);
- if (kchan == NULL) {
- /* This sould not happen... */
- ret = LTTCOMM_FATAL;
- goto error;
+ /* Get the newly created kernel channel pointer */
+ kchan = trace_kernel_get_channel_by_name(channel_name,
+ session->kernel_session);
+ if (kchan == NULL) {
+ /* This sould not happen... */
+ ret = LTTCOMM_FATAL;
+ goto error;
+ }
+
}
switch (event_type) {
ret = LTTCOMM_KERN_ENABLE_FAIL;
goto error;
}
+
+ /* Manage return value */
if (ret != LTTCOMM_OK) {
goto error;
}
kernel_wait_quiescent(kernel_tracer_fd);
}
- /* Flag session that trace should start automatically */
if (usess) {
usess->start_trace = 0;
ret = LTTCOMM_KERN_CONSUMER_FAIL;
goto error;
}
+ } else {
+ pthread_mutex_unlock(&kconsumer_data.pid_mutex);
}
- pthread_mutex_unlock(&kconsumer_data.pid_mutex);
}
break;
case LTTNG_DOMAIN_UST:
goto error;
}
}
- /* Start the kernel consumer daemon */
- pthread_mutex_lock(&ustconsumer_data.pid_mutex);
- if (ustconsumer_data.pid == 0 &&
+ /* Start the UST consumer daemons */
+ /* 64-bit */
+ pthread_mutex_lock(&ustconsumer64_data.pid_mutex);
+ if (consumerd64_bin[0] != '\0' &&
+ ustconsumer64_data.pid == 0 &&
cmd_ctx->lsm->cmd_type != LTTNG_REGISTER_CONSUMER) {
- pthread_mutex_unlock(&ustconsumer_data.pid_mutex);
- ret = start_consumerd(&ustconsumer_data);
+ pthread_mutex_unlock(&ustconsumer64_data.pid_mutex);
+ ret = start_consumerd(&ustconsumer64_data);
if (ret < 0) {
- ret = LTTCOMM_KERN_CONSUMER_FAIL;
+ ret = LTTCOMM_UST_CONSUMER64_FAIL;
+ ust_consumerd64_fd = -EINVAL;
goto error;
}
- ust_consumer_fd = ustconsumer_data.cmd_sock;
+ ust_consumerd64_fd = ustconsumer64_data.cmd_sock;
+ } else {
+ pthread_mutex_unlock(&ustconsumer64_data.pid_mutex);
+ }
+ /* 32-bit */
+ if (consumerd32_bin[0] != '\0' &&
+ ustconsumer32_data.pid == 0 &&
+ cmd_ctx->lsm->cmd_type != LTTNG_REGISTER_CONSUMER) {
+ pthread_mutex_unlock(&ustconsumer32_data.pid_mutex);
+ ret = start_consumerd(&ustconsumer32_data);
+ if (ret < 0) {
+ ret = LTTCOMM_UST_CONSUMER32_FAIL;
+ ust_consumerd32_fd = -EINVAL;
+ goto error;
+ }
+ ust_consumerd32_fd = ustconsumer32_data.cmd_sock;
+ } else {
+ pthread_mutex_unlock(&ustconsumer32_data.pid_mutex);
}
- pthread_mutex_unlock(&ustconsumer_data.pid_mutex);
}
break;
}
}
case LTTNG_ENABLE_CHANNEL:
{
- ret = cmd_enable_channel(cmd_ctx->session, &cmd_ctx->lsm->domain,
+ ret = cmd_enable_channel(cmd_ctx->session, cmd_ctx->lsm->domain.type,
&cmd_ctx->lsm->u.channel.chan);
break;
}
fprintf(stderr, " -a, --apps-sock PATH Specify path for apps unix socket\n");
fprintf(stderr, " --kconsumerd-err-sock PATH Specify path for the kernel consumer error socket\n");
fprintf(stderr, " --kconsumerd-cmd-sock PATH Specify path for the kernel consumer command socket\n");
- fprintf(stderr, " --ustconsumerd-err-sock PATH Specify path for the UST consumer error socket\n");
- fprintf(stderr, " --ustconsumerd-cmd-sock PATH Specify path for the UST consumer command socket\n");
+ fprintf(stderr, " --ustconsumerd32-err-sock PATH Specify path for the 32-bit UST consumer error socket\n");
+ fprintf(stderr, " --ustconsumerd64-err-sock PATH Specify path for the 64-bit UST consumer error socket\n");
+ fprintf(stderr, " --ustconsumerd32-cmd-sock PATH Specify path for the 32-bit UST consumer command socket\n");
+ fprintf(stderr, " --ustconsumerd64-cmd-sock PATH Specify path for the 64-bit UST consumer command socket\n");
+ fprintf(stderr, " --consumerd32-path PATH Specify path for the 32-bit UST consumer daemon binary\n");
+ fprintf(stderr, " --consumerd32-libdir PATH Specify path for the 32-bit UST consumer daemon libraries\n");
+ fprintf(stderr, " --consumerd64-path PATH Specify path for the 64-bit UST consumer daemon binary\n");
+ fprintf(stderr, " --consumerd64-libdir PATH Specify path for the 64-bit UST consumer daemon libraries\n");
fprintf(stderr, " -d, --daemonize Start as a daemon.\n");
fprintf(stderr, " -g, --group NAME Specify the tracing group name. (default: tracing)\n");
fprintf(stderr, " -V, --version Show version number.\n");
{ "apps-sock", 1, 0, 'a' },
{ "kconsumerd-cmd-sock", 1, 0, 'C' },
{ "kconsumerd-err-sock", 1, 0, 'E' },
- { "ustconsumerd-cmd-sock", 1, 0, 'D' },
- { "ustconsumerd-err-sock", 1, 0, 'F' },
+ { "ustconsumerd32-cmd-sock", 1, 0, 'G' },
+ { "ustconsumerd32-err-sock", 1, 0, 'H' },
+ { "ustconsumerd64-cmd-sock", 1, 0, 'D' },
+ { "ustconsumerd64-err-sock", 1, 0, 'F' },
+ { "consumerd32-path", 1, 0, 'u' },
+ { "consumerd32-libdir", 1, 0, 'U' },
+ { "consumerd64-path", 1, 0, 't' },
+ { "consumerd64-libdir", 1, 0, 'T' },
{ "daemonize", 0, 0, 'd' },
{ "sig-parent", 0, 0, 'S' },
{ "help", 0, 0, 'h' },
while (1) {
int option_index = 0;
- c = getopt_long(argc, argv, "dhqvVS" "a:c:g:s:C:E:D:F:Z",
+ c = getopt_long(argc, argv, "dhqvVS" "a:c:g:s:C:E:D:F:Z:u:t",
long_options, &option_index);
if (c == -1) {
break;
opt_daemon = 1;
break;
case 'g':
- opt_tracing_group = strdup(optarg);
+ opt_tracing_group = optarg;
break;
case 'h':
usage();
snprintf(kconsumer_data.cmd_unix_sock_path, PATH_MAX, "%s", optarg);
break;
case 'F':
- snprintf(ustconsumer_data.err_unix_sock_path, PATH_MAX, "%s", optarg);
+ snprintf(ustconsumer64_data.err_unix_sock_path, PATH_MAX, "%s", optarg);
break;
case 'D':
- snprintf(ustconsumer_data.cmd_unix_sock_path, PATH_MAX, "%s", optarg);
+ snprintf(ustconsumer64_data.cmd_unix_sock_path, PATH_MAX, "%s", optarg);
+ break;
+ case 'H':
+ snprintf(ustconsumer32_data.err_unix_sock_path, PATH_MAX, "%s", optarg);
+ break;
+ case 'G':
+ snprintf(ustconsumer32_data.cmd_unix_sock_path, PATH_MAX, "%s", optarg);
break;
case 'q':
opt_quiet = 1;
case 'Z':
opt_verbose_consumer += 1;
break;
+ case 'u':
+ consumerd32_bin= optarg;
+ break;
+ case 'U':
+ consumerd32_libdir = optarg;
+ break;
+ case 't':
+ consumerd64_bin = optarg;
+ break;
+ case 'T':
+ consumerd64_libdir = optarg;
+ break;
default:
/* Unknown option or other error.
* Error is printed by getopt, just return */
perror("chown");
}
- /* ustconsumer error socket path */
- ret = chown(ustconsumer_data.err_unix_sock_path, 0, gid);
+ /* 64-bit ustconsumer error socket path */
+ ret = chown(ustconsumer64_data.err_unix_sock_path, 0, gid);
+ if (ret < 0) {
+ ERR("Unable to set group on %s", ustconsumer64_data.err_unix_sock_path);
+ perror("chown");
+ }
+
+ /* 32-bit ustconsumer compat32 error socket path */
+ ret = chown(ustconsumer32_data.err_unix_sock_path, 0, gid);
if (ret < 0) {
- ERR("Unable to set group on %s", ustconsumer_data.err_unix_sock_path);
+ ERR("Unable to set group on %s", ustconsumer32_data.err_unix_sock_path);
perror("chown");
}
static int set_consumer_sockets(struct consumer_data *consumer_data)
{
int ret;
- const char *path = consumer_data->type == LTTNG_CONSUMER_KERNEL ?
- KCONSUMERD_PATH : USTCONSUMERD_PATH;
-
- if (strlen(consumer_data->err_unix_sock_path) == 0) {
- snprintf(consumer_data->err_unix_sock_path, PATH_MAX,
- consumer_data->type == LTTNG_CONSUMER_KERNEL ?
- KCONSUMERD_ERR_SOCK_PATH :
- USTCONSUMERD_ERR_SOCK_PATH);
- }
+ const char *path;
- if (strlen(consumer_data->cmd_unix_sock_path) == 0) {
- snprintf(consumer_data->cmd_unix_sock_path, PATH_MAX,
- consumer_data->type == LTTNG_CONSUMER_KERNEL ?
- KCONSUMERD_CMD_SOCK_PATH :
- USTCONSUMERD_CMD_SOCK_PATH);
+ switch (consumer_data->type) {
+ case LTTNG_CONSUMER_KERNEL:
+ path = KCONSUMERD_PATH;
+ break;
+ case LTTNG_CONSUMER64_UST:
+ path = USTCONSUMERD64_PATH;
+ break;
+ case LTTNG_CONSUMER32_UST:
+ path = USTCONSUMERD32_PATH;
+ break;
+ default:
+ ERR("Consumer type unknown");
+ ret = -EINVAL;
+ goto error;
}
ret = mkdir(path, S_IRWXU | S_IRWXG);
goto error;
}
+ setup_consumerd_path();
+
/* Parse arguments */
progname = argv[0];
if ((ret = parse_args(argc, argv) < 0)) {
goto exit;
}
- ret = set_consumer_sockets(&ustconsumer_data);
+ ret = set_consumer_sockets(&ustconsumer64_data);
if (ret < 0) {
goto exit;
}
+
+ ret = set_consumer_sockets(&ustconsumer32_data);
+ if (ret < 0) {
+ goto exit;
+ }
+
/* Setup kernel tracer */
init_kernel_tracer();
projects / lttng-tools.git / blobdiff