Add pid/ppid/tid/vtid/vpid/vppid contexts

[lttng-modules.git] / ltt-debugfs-abi.c

diff --git a/ltt-debugfs-abi.c b/ltt-debugfs-abi.c
index e3f5b55df1219bb2f9ae76313d6532d0bb712f9e..aa8dc0f4a0d973af21f4739aa373170cfb63a9d6 100644 (file)
--- a/ltt-debugfs-abi.c
+++ b/ltt-debugfs-abi.c
@@ -159,6 +159,16 @@ long lttng_abi_add_context(struct file *file,
                return lttng_add_prio_to_ctx(ctx);
        case LTTNG_KERNEL_CONTEXT_NICE:
                return lttng_add_nice_to_ctx(ctx);
+       case LTTNG_KERNEL_CONTEXT_VPID:
+               return lttng_add_vpid_to_ctx(ctx);
+       case LTTNG_KERNEL_CONTEXT_TID:
+               return lttng_add_tid_to_ctx(ctx);
+       case LTTNG_KERNEL_CONTEXT_VTID:
+               return lttng_add_vtid_to_ctx(ctx);
+       case LTTNG_KERNEL_CONTEXT_PPID:
+               return lttng_add_ppid_to_ctx(ctx);
+       case LTTNG_KERNEL_CONTEXT_VPPID:
+               return lttng_add_vppid_to_ctx(ctx);
        case LTTNG_KERNEL_CONTEXT_PERF_COUNTER:
                context_param.u.perf_counter.name[LTTNG_SYM_NAME_LEN - 1] = '\0';
                return lttng_add_perf_counter_to_ctx(context_param.u.perf_counter.type,
@@ -330,10 +340,10 @@ fd_error:
  *     This ioctl implements lttng commands:
  *     LTTNG_KERNEL_CHANNEL
  *             Returns a LTTng channel file descriptor
- *     LTTNG_KERNEL_SESSION_START
- *             Starts tracing session
- *     LTTNG_KERNEL_SESSION_STOP
- *             Stops tracing session
+ *     LTTNG_KERNEL_ENABLE
+ *             Enables tracing for a session (weak enable)
+ *     LTTNG_KERNEL_DISABLE
+ *             Disables tracing for a session (strong disable)
  *     LTTNG_KERNEL_METADATA
  *             Returns a LTTng metadata file descriptor
  *
@@ -350,9 +360,11 @@ long lttng_session_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                                (struct lttng_kernel_channel __user *) arg,
                                PER_CPU_CHANNEL);
        case LTTNG_KERNEL_SESSION_START:
-               return ltt_session_start(session);
+       case LTTNG_KERNEL_ENABLE:
+               return ltt_session_enable(session);
        case LTTNG_KERNEL_SESSION_STOP:
-               return ltt_session_stop(session);
+       case LTTNG_KERNEL_DISABLE:
+               return ltt_session_disable(session);
        case LTTNG_KERNEL_METADATA:
                return lttng_abi_create_channel(file,
                                (struct lttng_kernel_channel __user *) arg,
@@ -506,6 +518,10 @@ fd_error:
  *             Returns an event file descriptor or failure.
  *     LTTNG_KERNEL_CONTEXT
  *             Prepend a context field to each event in the channel
+ *     LTTNG_KERNEL_ENABLE
+ *             Enable recording for events in this channel (weak enable)
+ *     LTTNG_KERNEL_DISABLE
+ *             Disable recording for events in this channel (strong disable)
  *
  * Channel and event file descriptors also hold a reference on the session.
  */
@@ -523,6 +539,10 @@ long lttng_channel_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                return lttng_abi_add_context(file,
                                (struct lttng_kernel_context __user *) arg,
                                &channel->ctx, channel->session);
+       case LTTNG_KERNEL_ENABLE:
+               return ltt_channel_enable(channel);
+       case LTTNG_KERNEL_DISABLE:
+               return ltt_channel_disable(channel);
        default:
                return -ENOIOCTLCMD;
        }
@@ -614,13 +634,12 @@ static const struct file_operations lttng_metadata_fops = {
  *     @arg: command arg
  *
  *     This ioctl implements lttng commands:
- *      LTTNG_KERNEL_STREAM
- *              Returns an event stream file descriptor or failure.
- *              (typically, one event stream records events from one CPU)
- *     LTTNG_KERNEL_EVENT
- *             Returns an event file descriptor or failure.
  *     LTTNG_KERNEL_CONTEXT
  *             Prepend a context field to each record of this event
+ *     LTTNG_KERNEL_ENABLE
+ *             Enable recording for this event (weak enable)
+ *     LTTNG_KERNEL_DISABLE
+ *             Disable recording for this event (strong disable)
  */
 static
 long lttng_event_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
@@ -632,6 +651,10 @@ long lttng_event_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                return lttng_abi_add_context(file,
                                (struct lttng_kernel_context __user *) arg,
                                &event->ctx, event->chan->session);
+       case LTTNG_KERNEL_ENABLE:
+               return ltt_event_enable(event);
+       case LTTNG_KERNEL_DISABLE:
+               return ltt_event_disable(event);
        default:
                return -ENOIOCTLCMD;
        }