fix: kvm instrumentation for CentOS >= 4.18.0-147

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

diff --git a/lttng-events.h b/lttng-events.h
index 8b0803e40b4c22ebd6129c790596393af4629808..470df254f41a34927e273c447f78f8b5d1c2ae88 100644 (file)
--- a/lttng-events.h
+++ b/lttng-events.h
@@ -16,6 +16,7 @@
 #include <linux/kref.h>
 #include <lttng-cpuhotplug.h>
 #include <wrapper/uuid.h>
+#include <wrapper/uprobes.h>
 #include <lttng-tracer.h>
 #include <lttng-abi.h>
 #include <lttng-abi-old.h>
@@ -284,6 +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.
@@ -307,8 +315,9 @@ struct lttng_event {
                        char *symbol_name;
                } kretprobe;
                struct {
-                       char *symbol_name;
-               } ftrace;
+                       struct inode *inode;
+                       struct list_head head;
+               } uprobe;
        } u;
        struct list_head list;          /* Event list in session */
        unsigned int metadata_dumped:1;
@@ -509,6 +518,8 @@ struct lttng_session {
        struct list_head enablers_head;
        /* Hash table of events */
        struct lttng_event_ht events_ht;
+       char name[LTTNG_KERNEL_SESSION_NAME_LEN];
+       char creation_time[LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN];
 };
 
 struct lttng_metadata_cache {
@@ -771,6 +782,42 @@ 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, 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, struct lttng_event *event)
+{
+       return -ENOSYS;
+}
+
+static inline
+int lttng_uprobes_add_callsite(struct lttng_event *event,
+       struct lttng_kernel_event_callsite *callsite)
+{
+       return -ENOSYS;
+}
+
+static inline
+void lttng_uprobes_unregister(struct lttng_event *event)
+{
+}
+
+static inline
+void lttng_uprobes_destroy_private(struct lttng_event *event)
+{
+}
+#endif
+
 #ifdef CONFIG_KRETPROBES
 int lttng_kretprobes_register(const char *name,
                const char *symbol_name,
@@ -812,32 +859,6 @@ int lttng_kretprobes_event_enable_state(struct lttng_event *event,
 }
 #endif
 
-#if defined(CONFIG_DYNAMIC_FTRACE) && !defined(LTTNG_FTRACE_MISSING_HEADER)
-int lttng_ftrace_register(const char *name,
-                         const char *symbol_name,
-                         struct lttng_event *event);
-void lttng_ftrace_unregister(struct lttng_event *event);
-void lttng_ftrace_destroy_private(struct lttng_event *event);
-#else
-static inline
-int lttng_ftrace_register(const char *name,
-                         const char *symbol_name,
-                         struct lttng_event *event)
-{
-       return -ENOSYS;
-}
-
-static inline
-void lttng_ftrace_unregister(struct lttng_event *event)
-{
-}
-
-static inline
-void lttng_ftrace_destroy_private(struct lttng_event *event)
-{
-}
-#endif
-
 int lttng_calibrate(struct lttng_kernel_calibrate *calibrate);
 
 extern const struct file_operations lttng_tracepoint_list_fops;