Add CTF enum type support to tracepoint event

[deliverable/lttng-ust.git] / include / lttng / ust-tracepoint-event.h

diff --git a/include/lttng/ust-tracepoint-event.h b/include/lttng/ust-tracepoint-event.h
index d9aa6ce6bdb8f8496b7b7a1dc41facf20ca6a169..aa8b50f86e5a44aa055a72f3e89e46772efe8c10 100644 (file)
--- a/include/lttng/ust-tracepoint-event.h
+++ b/include/lttng/ust-tracepoint-event.h
@@ -117,6 +117,35 @@ static const char                                                  \
 
 #include TRACEPOINT_INCLUDE
 
+/*
+ * Stage 0.9 of tracepoint event generation
+ *
+ * Unfolding the enums
+ */
+#include <lttng/ust-tracepoint-event-reset.h>
+
+/* Enumeration entry (single value) */
+#undef ctf_enum_value
+#define ctf_enum_value(_string, _value)                                        \
+       { _value, _value, _string },
+
+/* Enumeration entry (range) */
+#undef ctf_enum_range
+#define ctf_enum_range(_string, _range_start, _range_end)              \
+       { _range_start, _range_end, _string },
+
+#undef TP_ENUM_VALUES
+#define TP_ENUM_VALUES(...)                                            \
+       __VA_ARGS__
+
+#undef TRACEPOINT_ENUM
+#define TRACEPOINT_ENUM(_provider, _name, _values)                     \
+       const struct lttng_enum_entry __enum_values__##_provider##_##_name[] = { \
+               _values                                                 \
+       };
+
+#include TRACEPOINT_INCLUDE
+
 /*
  * Stage 1 of tracepoint event generation.
  *
@@ -200,6 +229,31 @@ static const char                                                  \
          .nowrite = _nowrite,                                  \
        },
 
+#undef _ctf_enum
+#define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite) \
+       {                                                       \
+               .name = #_item,                                 \
+               .type = {                                       \
+                       .atype = atype_enum,                    \
+                       .u = {                                  \
+                               .basic = {                      \
+                                       .enumeration = {        \
+                                               .desc = &__enum_##_provider##_##_name, \
+                                               .container_type = { \
+                                                       .size = sizeof(_type) * CHAR_BIT, \
+                                                       .alignment = lttng_alignof(_type) * CHAR_BIT, \
+                                                       .signedness = lttng_is_signed_type(_type), \
+                                                       .reverse_byte_order = 0, \
+                                                       .base = 10, \
+                                                       .encoding = lttng_encode_none, \
+                                               },              \
+                                       },                      \
+                                },                             \
+                       },                                      \
+               },                                              \
+               .nowrite = _nowrite,                            \
+       },
+
 #undef TP_FIELDS
 #define TP_FIELDS(...) __VA_ARGS__     /* Only one used in this phase */
 
@@ -209,6 +263,14 @@ static const char                                                  \
                _fields                                                                      \
        };
 
+#undef TRACEPOINT_ENUM
+#define TRACEPOINT_ENUM(_provider, _name, _values)                                     \
+       static const struct lttng_enum_desc __enum_##_provider##_##_name = {            \
+               .name = #_provider "_" #_name,                                          \
+               .entries = __enum_values__##_provider##_##_name,                        \
+               .nr_entries = _TP_ARRAY_SIZE(__enum_values__##_provider##_##_name),     \
+       };
+
 #include TRACEPOINT_INCLUDE
 
 /*
@@ -230,7 +292,7 @@ static void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args));
 #include TRACEPOINT_INCLUDE
 
 /*
- * Stage 3 of tracepoint event generation.
+ * Stage 3.0 of tracepoint event generation.
  *
  * Create static inline function that calculates event size.
  */
@@ -268,6 +330,10 @@ static void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args));
 #define _ctf_string(_item, _src, _nowrite)                                    \
        __event_len += __dynamic_len[__dynamic_len_idx++] = strlen(_src) + 1;
 
+#undef _ctf_enum
+#define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite)              \
+       _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10, _nowrite)
+
 #undef TP_ARGS
 #define TP_ARGS(...) __VA_ARGS__
 
@@ -410,6 +476,10 @@ size_t __event_get_size__##_provider##___##_name(size_t *__dynamic_len, _TP_ARGS
                __stack_data += sizeof(void *);                                \
        }
 
+#undef _ctf_enum
+#define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite)              \
+       _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10, _nowrite)
+
 #undef TP_ARGS
 #define TP_ARGS(...) __VA_ARGS__
 
@@ -427,8 +497,6 @@ void __event_prepare_filter_stack__##_provider##___##_name(char *__stack_data,\
 
 #include TRACEPOINT_INCLUDE
 
-
-
 /*
  * Stage 4 of tracepoint event generation.
  *
@@ -460,6 +528,10 @@ void __event_prepare_filter_stack__##_provider##___##_name(char *__stack_data,\
 #undef _ctf_string
 #define _ctf_string(_item, _src, _nowrite)
 
+#undef _ctf_enum
+#define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite)              \
+       _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10, _nowrite)
+
 #undef TP_ARGS
 #define TP_ARGS(...) __VA_ARGS__
 
@@ -544,6 +616,10 @@ size_t __event_get_align__##_provider##___##_name(_TP_ARGS_PROTO(_args))      \
                __chan->ops->event_write(&__ctx, _src,                  \
                        __get_dynamic_len(dest));
 
+#undef _ctf_enum
+#define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite)      \
+       _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10, _nowrite)
+
 /* Beware: this get len actually consumes the len value */
 #undef __get_dynamic_len
 #define __get_dynamic_len(field)       __stackvar.__dynamic_len[__dynamic_len_idx++]
@@ -726,7 +802,11 @@ const struct lttng_event_desc __event_desc___##_provider##_##_name = {            \
        .nr_fields = _TP_ARRAY_SIZE(__event_fields___##_provider##___##_template), \
        .loglevel = &__ref_loglevel___##_provider##___##_name,                 \
        .signature = __tp_event_signature___##_provider##___##_template,       \
-       .u = { .ext = { .model_emf_uri = &__ref_model_emf_uri___##_provider##___##_name } }, \
+       .u = {                                                                 \
+           .ext = {                                                           \
+                 .model_emf_uri = &__ref_model_emf_uri___##_provider##___##_name, \
+               },                                                             \
+       },                                                                     \
 };
 
 #include TRACEPOINT_INCLUDE