X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=probes%2Flttng-kretprobes.c;h=52b3f78138f94978427eedc8e197175527270274;hb=a0493bef1367458230b0319401f8533b0400cea2;hp=6b75848accb95ff9f6361b44591d48c3ebeb16e6;hpb=a90917c3f8c4ed79117f1caa333b29a2108084ec;p=lttng-modules.git

diff --git a/probes/lttng-kretprobes.c b/probes/lttng-kretprobes.c
index 6b75848a..52b3f781 100644
--- a/probes/lttng-kretprobes.c
+++ b/probes/lttng-kretprobes.c
@@ -1,10 +1,23 @@
 /*
- * (C) Copyright	2009-2011 -
- * 		Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * probes/lttng-kretprobes.c
  *
  * LTTng kretprobes integration module.
  *
- * Dual LGPL v2.1/GPL v2 license.
+ * Copyright (C) 2009-2012 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
  */
 
 #include <linux/module.h>
@@ -126,7 +139,7 @@ int lttng_create_kprobe_event(const char *name, struct lttng_event *event,
 	fields[0].type.atype = atype_integer;
 	fields[0].type.u.basic.integer.size = sizeof(unsigned long) * CHAR_BIT;
 	fields[0].type.u.basic.integer.alignment = lttng_alignof(unsigned long) * CHAR_BIT;
-	fields[0].type.u.basic.integer.signedness = is_signed_type(unsigned long);
+	fields[0].type.u.basic.integer.signedness = lttng_is_signed_type(unsigned long);
 	fields[0].type.u.basic.integer.reverse_byte_order = 0;
 	fields[0].type.u.basic.integer.base = 16;
 	fields[0].type.u.basic.integer.encoding = lttng_encode_none;
@@ -135,7 +148,7 @@ int lttng_create_kprobe_event(const char *name, struct lttng_event *event,
 	fields[1].type.atype = atype_integer;
 	fields[1].type.u.basic.integer.size = sizeof(unsigned long) * CHAR_BIT;
 	fields[1].type.u.basic.integer.alignment = lttng_alignof(unsigned long) * CHAR_BIT;
-	fields[1].type.u.basic.integer.signedness = is_signed_type(unsigned long);
+	fields[1].type.u.basic.integer.signedness = lttng_is_signed_type(unsigned long);
 	fields[1].type.u.basic.integer.reverse_byte_order = 0;
 	fields[1].type.u.basic.integer.base = 16;
 	fields[1].type.u.basic.integer.encoding = lttng_encode_none;
@@ -272,6 +285,30 @@ void lttng_kretprobes_destroy_private(struct lttng_event *event)
 }
 EXPORT_SYMBOL_GPL(lttng_kretprobes_destroy_private);
 
+int lttng_kretprobes_event_enable_state(struct lttng_event *event,
+		int enable)
+{
+	struct lttng_event *event_return;
+	struct lttng_krp *lttng_krp;
+
+	if (event->instrumentation != LTTNG_KERNEL_KRETPROBE) {
+		return -EINVAL;
+	}
+	if (event->enabled == enable) {
+		return -EBUSY;
+	}
+	lttng_krp = event->u.kretprobe.lttng_krp;
+	event_return = lttng_krp->event[EVENT_RETURN];
+	ACCESS_ONCE(event->enabled) = enable;
+	ACCESS_ONCE(event_return->enabled) = enable;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(lttng_kretprobes_event_enable_state);
+
 MODULE_LICENSE("GPL and additional rights");
 MODULE_AUTHOR("Mathieu Desnoyers");
 MODULE_DESCRIPTION("Linux Trace Toolkit Kretprobes Support");
+MODULE_VERSION(__stringify(LTTNG_MODULES_MAJOR_VERSION) "."
+	__stringify(LTTNG_MODULES_MINOR_VERSION) "."
+	__stringify(LTTNG_MODULES_PATCHLEVEL_VERSION)
+	LTTNG_MODULES_EXTRAVERSION);