Fix: 32-bit print format type mismatch warnings
[lttng-tools.git] / src / bin / lttng-sessiond / kernel.c
index 596af588c5800c4bd6754bd9ec00de93b3381649..f734760778db81f24d704f59d416ca7ce68af845 100644 (file)
@@ -22,6 +22,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
+#include <inttypes.h>
 
 #include <common/common.h>
 #include <common/kernel-ctl/kernel-ctl.h>
@@ -150,6 +151,12 @@ int kernel_create_channel(struct ltt_kernel_session *session,
                goto error;
        }
 
+       DBG3("Kernel create channel %s in %s with attr: %d, %" PRIu64 ", %" PRIu64 ", %u, %u, %d",
+                       chan->name, path, lkc->channel->attr.overwrite,
+                       lkc->channel->attr.subbuf_size, lkc->channel->attr.num_subbuf,
+                       lkc->channel->attr.switch_timer_interval, lkc->channel->attr.read_timer_interval,
+                       lkc->channel->attr.output);
+
        /* Kernel tracer channel creation */
        ret = kernctl_create_channel(session->fd, &lkc->channel->attr);
        if (ret < 0) {
@@ -169,8 +176,7 @@ int kernel_create_channel(struct ltt_kernel_session *session,
        cds_list_add(&lkc->list, &session->channel_list.head);
        session->channel_count++;
 
-       DBG("Kernel channel %s created (fd: %d and path: %s)",
-                       lkc->channel->name, lkc->fd, lkc->pathname);
+       DBG("Kernel channel %s created (fd: %d)", lkc->channel->name, lkc->fd);
 
        return 0;
 
@@ -196,7 +202,13 @@ int kernel_create_event(struct lttng_event *ev,
 
        ret = kernctl_create_event(channel->fd, event->event);
        if (ret < 0) {
-               if (errno != EEXIST) {
+               switch (errno) {
+               case EEXIST:
+                       break;
+               case ENOSYS:
+                       WARN("Event type not implemented");
+                       break;
+               default:
                        PERROR("create event ioctl");
                }
                ret = -errno;
@@ -345,13 +357,13 @@ error:
  * Create kernel metadata, open from the kernel tracer and add it to the
  * kernel session.
  */
-int kernel_open_metadata(struct ltt_kernel_session *session, char *path)
+int kernel_open_metadata(struct ltt_kernel_session *session)
 {
        int ret;
        struct ltt_kernel_metadata *lkm;
 
        /* Allocate kernel metadata */
-       lkm = trace_kernel_create_metadata(path);
+       lkm = trace_kernel_create_metadata();
        if (lkm == NULL) {
                goto error;
        }
@@ -371,7 +383,7 @@ int kernel_open_metadata(struct ltt_kernel_session *session, char *path)
 
        session->metadata = lkm;
 
-       DBG("Kernel metadata opened (fd: %d and path: %s)", lkm->fd, lkm->pathname);
+       DBG("Kernel metadata opened (fd: %d)", lkm->fd);
 
        return 0;
 
@@ -442,7 +454,7 @@ int kernel_metadata_flush_buffer(int fd)
 
        ret = kernctl_buffer_flush(fd);
        if (ret < 0) {
-               ERR("Fail to flush metadata buffers %d (ret: %d", fd, ret);
+               ERR("Fail to flush metadata buffers %d (ret: %d)", fd, ret);
        }
 
        return 0;
@@ -499,11 +511,11 @@ error:
  */
 int kernel_open_channel_stream(struct ltt_kernel_channel *channel)
 {
-       int ret;
+       int ret, count = 0;
        struct ltt_kernel_stream *lks;
 
        while ((ret = kernctl_create_stream(channel->fd)) >= 0) {
-               lks = trace_kernel_create_stream();
+               lks = trace_kernel_create_stream(channel->channel->name, count);
                if (lks == NULL) {
                        ret = close(ret);
                        if (ret) {
@@ -519,19 +531,15 @@ int kernel_open_channel_stream(struct ltt_kernel_channel *channel)
                        PERROR("fcntl session fd");
                }
 
-               ret = asprintf(&lks->pathname, "%s/%s_%d",
-                               channel->pathname, channel->channel->name, channel->stream_count);
-               if (ret < 0) {
-                       PERROR("asprintf kernel create stream");
-                       goto error;
-               }
-
                /* Add stream to channe stream list */
                cds_list_add(&lks->list, &channel->stream_list.head);
                channel->stream_count++;
 
-               DBG("Kernel stream %d created (fd: %d, state: %d, path: %s)",
-                               channel->stream_count, lks->fd, lks->state, lks->pathname);
+               /* Increment counter which represent CPU number. */
+               count++;
+
+               DBG("Kernel stream %s created (fd: %d, state: %d)", lks->name, lks->fd,
+                               lks->state);
        }
 
        return channel->stream_count;
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