return ret;
}
+static
+int lttng_abi_tracepoint_list(void)
+{
+ struct file *tracepoint_list_file;
+ int file_fd, ret;
+
+ file_fd = get_unused_fd();
+ if (file_fd < 0) {
+ ret = file_fd;
+ goto fd_error;
+ }
+ tracepoint_list_file = anon_inode_getfile("[lttng_session]",
+ <tng_tracepoint_list_fops,
+ NULL, O_RDWR);
+ if (IS_ERR(tracepoint_list_file)) {
+ ret = PTR_ERR(tracepoint_list_file);
+ goto file_error;
+ }
+ fd_install(file_fd, tracepoint_list_file);
+ return file_fd;
+
+file_error:
+ put_unused_fd(file_fd);
+fd_error:
+ return ret;
+}
+
static
long lttng_abi_tracer_version(struct file *file,
struct lttng_kernel_tracer_version __user *uversion_param)
* This ioctl implements lttng commands:
* LTTNG_KERNEL_SESSION
* Returns a LTTng trace session file descriptor
+ * LTTNG_KERNEL_TRACER_VERSION
+ * Returns the LTTng kernel tracer version
+ * LTTNG_KERNEL_TRACEPOINT_LIST
+ * Returns a file descriptor listing available tracepoints
*
* The returned session will be deleted when its file descriptor is closed.
*/
case LTTNG_KERNEL_TRACER_VERSION:
return lttng_abi_tracer_version(file,
(struct lttng_kernel_tracer_version __user *) arg);
+ case LTTNG_KERNEL_TRACEPOINT_LIST:
+ return lttng_abi_tracepoint_list();
default:
return -ENOIOCTLCMD;
}
{
struct ltt_channel *channel = channel_file->private_data;
static struct lttng_kernel_event metadata_params = {
- .instrumentation = LTTNG_KERNEL_TRACEPOINTS,
+ .instrumentation = LTTNG_KERNEL_TRACEPOINT,
.name = "lttng_metadata",
};
struct ltt_event *event;
*/
event = ltt_event_create(channel, &metadata_params, NULL);
if (!event) {
+ ret = -EINVAL;
goto create_error;
- ret = -EEXIST;
}
return;
return -EFAULT;
event_param.name[LTTNG_SYM_NAME_LEN - 1] = '\0';
switch (event_param.instrumentation) {
- case LTTNG_KERNEL_KPROBES:
+ case LTTNG_KERNEL_KPROBE:
event_param.u.kprobe.symbol_name[LTTNG_SYM_NAME_LEN - 1] = '\0';
break;
- case LTTNG_KERNEL_FUNCTION_TRACER:
+ case LTTNG_KERNEL_FUNCTION:
event_param.u.ftrace.symbol_name[LTTNG_SYM_NAME_LEN - 1] = '\0';
break;
default:
*/
event = ltt_event_create(channel, &event_param, NULL);
if (!event) {
- ret = -EEXIST;
+ ret = -EINVAL;
goto event_error;
}
event_file->private_data = event;