Connect sched_set_prio probe

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

diff --git a/lttng-events.h b/lttng-events.h
index fe7628473c2afa7a7c55590379624160ebbbc0a9..9c8f03b8d4fc27849cf31c557e44de78da350fd8 100644 (file)
--- a/lttng-events.h
+++ b/lttng-events.h
@@ -28,6 +28,7 @@
 #include <linux/kprobes.h>
 #include <linux/kref.h>
 #include <wrapper/uuid.h>
+#include <lttng-tracer.h>
 #include <lttng-abi.h>
 #include <lttng-abi-old.h>
 
@@ -52,6 +53,7 @@ enum abstract_types {
        atype_struct,
        atype_array_compound,           /* Array of compound types. */
        atype_sequence_compound,        /* Sequence of compound types. */
+       atype_variant,
        NR_ABSTRACT_TYPES,
 };
 
@@ -67,8 +69,13 @@ enum channel_type {
        METADATA_CHANNEL,
 };
 
+struct lttng_enum_value {
+       unsigned long long value;
+       unsigned int signedness:1;
+};
+
 struct lttng_enum_entry {
-       unsigned long long start, end;  /* start and end are inclusive */
+       struct lttng_enum_value start, end;     /* start and end are inclusive */
        const char *string;
 };
 
@@ -99,7 +106,8 @@ struct lttng_integer_type {
 union _lttng_basic_type {
        struct lttng_integer_type integer;
        struct {
-               const char *name;
+               const struct lttng_enum_desc *desc;     /* Enumeration mapping */
+               struct lttng_integer_type container_type;
        } enumeration;
        struct {
                enum lttng_string_encodings encoding;
@@ -139,14 +147,18 @@ struct lttng_type {
                        struct lttng_type *elem_type;
                        const char *length_name;
                } sequence_compound;
+               struct {
+                       const char *tag_name;
+                       struct lttng_event_field *choices; /* Array of fields. */
+                       uint32_t nr_choices;
+               } variant;
        } u;
 };
 
-struct lttng_enum {
+struct lttng_enum_desc {
        const char *name;
-       struct lttng_type container_type;
        const struct lttng_enum_entry *entries;
-       unsigned int len;
+       unsigned int nr_entries;
 };
 
 /* Event field description */
@@ -447,6 +459,14 @@ struct lttng_metadata_stream {
        uint64_t version;               /* Current version of the metadata cache */
 };
 
+#define LTTNG_DYNAMIC_LEN_STACK_SIZE   128
+
+struct lttng_dynamic_len_stack {
+       size_t stack[LTTNG_DYNAMIC_LEN_STACK_SIZE];
+       size_t offset;
+};
+
+DECLARE_PER_CPU(struct lttng_dynamic_len_stack, lttng_dynamic_len_stack);
 
 /*
  * struct lttng_pid_tracker declared in header due to deferencing of *v
@@ -628,6 +648,8 @@ int lttng_enabler_attach_bytecode(struct lttng_enabler *enabler,
 void lttng_enabler_event_link_bytecode(struct lttng_event *event,
                struct lttng_enabler *enabler);
 
+int lttng_probes_init(void);
+
 extern struct lttng_ctx *lttng_static_ctx;
 
 int lttng_context_init(void);