uprobe: Support multiple call sites for the same uprobe event

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

diff --git a/lttng-abi.c b/lttng-abi.c
index f155c76be5b3144e211aabdaf45914daede1101e..9d3f74240724ca72f5c4db1b93c4d74837b99848 100644 (file)
--- a/lttng-abi.c
+++ b/lttng-abi.c
@@ -1,25 +1,11 @@
-/*
+/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
+ *
  * lttng-abi.c
  *
  * LTTng ABI
  *
  * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- *
  * Mimic system calls for:
  * - session creation, returns a file descriptor or failure.
  *   - channel creation, returns a file descriptor or failure.
@@ -1320,7 +1306,6 @@ old_ctx_end:
        default:
                return -ENOIOCTLCMD;
        }
-
 }
 
 /**
@@ -1489,6 +1474,15 @@ long lttng_event_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                }
 
                }
+       case LTTNG_KERNEL_ADD_CALLSITE:
+               switch (*evtype) {
+               case LTTNG_TYPE_EVENT:
+                       event = file->private_data;
+                       return lttng_event_add_callsite(event,
+                               (struct lttng_kernel_event_callsite __user *) arg);
+               case LTTNG_TYPE_ENABLER:
+                       return -EINVAL;
+               }
        default:
                return -ENOIOCTLCMD;
        }