uprobe: Support multiple call sites for the same uprobe event

[lttng-modules.git] / lttng-events.h

diff --git a/lttng-events.h b/lttng-events.h
index f6fe151886debe591ff295c800a80b5e5d81e5db..f74f9d52cccb81302b18c242712cb2941009a4e1 100644 (file)
--- a/lttng-events.h
+++ b/lttng-events.h
@@ -285,6 +285,13 @@ struct lttng_enabler_ref {
        struct lttng_enabler *ref;              /* backward ref */
 };
 
+struct lttng_uprobe_handler {
+       struct lttng_event *event;
+       loff_t offset;
+       struct uprobe_consumer up_consumer;
+       struct list_head node;
+};
+
 /*
  * lttng_event structure is referred to by the tracing fast path. It must be
  * kept small.
@@ -311,9 +318,8 @@ struct lttng_event {
                        char *symbol_name;
                } ftrace;
                struct {
-                       struct uprobe_consumer up_consumer;
                        struct inode *inode;
-                       loff_t offset;
+                       struct list_head head;
                } uprobe;
        } u;
        struct list_head list;          /* Event list in session */
@@ -777,19 +783,26 @@ void lttng_kprobes_destroy_private(struct lttng_event *event)
 }
 #endif
 
+int lttng_event_add_callsite(struct lttng_event *event,
+       struct lttng_kernel_event_callsite *callsite);
 #ifdef CONFIG_UPROBES
 int lttng_uprobes_register(const char *name,
-               int fd,
-               uint64_t offset,
-               struct lttng_event *event);
+       int fd, struct lttng_event *event);
+int lttng_uprobes_add_callsite(struct lttng_event *event,
+       struct lttng_kernel_event_callsite *callsite);
 void lttng_uprobes_unregister(struct lttng_event *event);
 void lttng_uprobes_destroy_private(struct lttng_event *event);
 #else
 static inline
 int lttng_uprobes_register(const char *name,
-               int fd,
-               uint64_t offset,
-               struct lttng_event *event)
+       int fd, struct lttng_event *event)
+{
+       return -ENOSYS;
+}
+
+static inline
+int lttng_uprobes_add_callsite(struct lttng_event *event,
+       struct lttng_kernel_callsite_uprobe *callsite)
 {
        return -ENOSYS;
 }