* SOFTWARE.
*/
+#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <urcu/compiler.h>
#include TRACEPOINT_INCLUDE
+/*
+ * Stage 0.2 of tracepoint event generation.
+ *
+ * Create dummy trace prototypes for each event class, and for each used
+ * template. This will allow checking whether the prototypes from the
+ * class and the instance using the class actually match.
+ */
+
+/* Reset all macros within TRACEPOINT_EVENT */
+#include <lttng/ust-tracepoint-event-reset.h>
+
+#undef TP_ARGS
+#define TP_ARGS(...) __VA_ARGS__
+
+#undef TRACEPOINT_EVENT_INSTANCE
+#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \
+void __event_template_proto___##_provider##___##_template(_TP_ARGS_DATA_PROTO(_args));
+
+#undef TRACEPOINT_EVENT_CLASS
+#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
+void __event_template_proto___##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args));
+
+#include TRACEPOINT_INCLUDE
+
/*
* Stage 0.9 of tracepoint event generation
*
.string = (_string), \
},
+/* Enumeration entry (automatic value; follows the rules of CTF) */
+#undef ctf_enum_auto
+#define ctf_enum_auto(_string) \
+ { \
+ .start = { \
+ .value = -1ULL, \
+ .signedness = 0, \
+ }, \
+ .end = { \
+ .value = -1ULL, \
+ .signedness = 0, \
+ }, \
+ .string = (_string), \
+ .u = { \
+ .extra = { \
+ .options = LTTNG_ENUM_ENTRY_OPTION_IS_AUTO, \
+ }, \
+ }, \
+ },
+
#undef TP_ENUM_VALUES
#define TP_ENUM_VALUES(...) \
__VA_ARGS__
__chan->ops->event_write(&__ctx, _src, \
sizeof(_type) * __get_dynamic_len(dest));
-/*
- * __chan->ops->u.has_strcpy is a flag letting us know if the LTTng-UST
- * tracepoint provider ABI implements event_strcpy. This dynamic check
- * can be removed when the tracepoint provider ABI moves to 2.
- */
-#if (LTTNG_UST_PROVIDER_MAJOR > 1)
-#error "Tracepoint probe provider major version has changed. Please remove dynamic check for has_strcpy."
-#endif
-
#undef _ctf_string
#define _ctf_string(_item, _src, _nowrite) \
{ \
((_src) ? (_src) : __LTTNG_UST_NULL_STRING); \
lib_ring_buffer_align_ctx(&__ctx, \
lttng_alignof(*__ctf_tmp_string)); \
- if (__chan->ops->u.has_strcpy) \
- __chan->ops->event_strcpy(&__ctx, __ctf_tmp_string, \
- __get_dynamic_len(dest)); \
- else \
- __chan->ops->event_write(&__ctx, __ctf_tmp_string, \
- __get_dynamic_len(dest)); \
+ __chan->ops->event_strcpy(&__ctx, __ctf_tmp_string, \
+ __get_dynamic_len(dest)); \
}
struct lttng_stack_ctx __lttng_ctx; \
size_t __event_len, __event_align; \
size_t __dynamic_len_idx = 0; \
+ const size_t __num_fields = _TP_ARRAY_SIZE(__event_fields___##_provider##___##_name) - 1; \
union { \
- size_t __dynamic_len[_TP_ARRAY_SIZE(__event_fields___##_provider##___##_name) - 1]; \
- char __filter_stack_data[2 * sizeof(unsigned long) * (_TP_ARRAY_SIZE(__event_fields___##_provider##___##_name) - 1)]; \
+ size_t __dynamic_len[__num_fields]; \
+ char __filter_stack_data[2 * sizeof(unsigned long) * __num_fields]; \
} __stackvar; \
int __ret; \
\
_TP_ARGS_DATA_VAR(_args)); \
tp_list_for_each_entry_rcu(bc_runtime, &__event->bytecode_runtime_head, node) { \
if (caa_unlikely(bc_runtime->filter(bc_runtime, \
- __stackvar.__filter_stack_data) & LTTNG_FILTER_RECORD_FLAG)) \
+ __stackvar.__filter_stack_data) & LTTNG_FILTER_RECORD_FLAG)) { \
__filter_record = 1; \
+ break; \
+ } \
} \
if (caa_likely(!__filter_record)) \
return; \
/* Reset all macros within TRACEPOINT_EVENT */
#include <lttng/ust-tracepoint-event-reset.h>
+/*
+ * Declare _loglevel___##__provider##___##__name as non-static, with
+ * hidden visibility for c++ handling of weakref. We do a weakref to the
+ * symbol in a later stage, which requires that the symbol is not
+ * mangled.
+ */
+#ifdef __cplusplus
+#define LTTNG_TP_EXTERN_C extern "C"
+#else
+#define LTTNG_TP_EXTERN_C
+#endif
+
#undef TRACEPOINT_LOGLEVEL
#define TRACEPOINT_LOGLEVEL(__provider, __name, __loglevel) \
static const int _loglevel_value___##__provider##___##__name = __loglevel; \
-static const int *_loglevel___##__provider##___##__name = \
+LTTNG_TP_EXTERN_C const int *_loglevel___##__provider##___##__name \
+ __attribute__((visibility("hidden"))) = \
&_loglevel_value___##__provider##___##__name;
#include TRACEPOINT_INCLUDE
+#undef LTTNG_TP_EXTERN_C
+
/*
* Stage 6.1 of tracepoint event generation.
*
/* Reset all macros within TRACEPOINT_EVENT */
#include <lttng/ust-tracepoint-event-reset.h>
+/*
+ * Declare _model_emf_uri___##__provider##___##__name as non-static,
+ * with hidden visibility for c++ handling of weakref. We do a weakref
+ * to the symbol in a later stage, which requires that the symbol is not
+ * mangled.
+ */
+#ifdef __cplusplus
+#define LTTNG_TP_EXTERN_C extern "C"
+#else
+#define LTTNG_TP_EXTERN_C
+#endif
+
#undef TRACEPOINT_MODEL_EMF_URI
#define TRACEPOINT_MODEL_EMF_URI(__provider, __name, __uri) \
-static const char *_model_emf_uri___##__provider##___##__name = __uri;
+LTTNG_TP_EXTERN_C const char *_model_emf_uri___##__provider##___##__name \
+ __attribute__((visibility("hidden"))) = __uri; \
#include TRACEPOINT_INCLUDE
+#undef LTTNG_TP_EXTERN_C
+
/*
* Stage 7.1 of tracepoint event generation.
*
_TP_COMBINE_TOKENS(__tracepoint_provider_check_, TRACEPOINT_PROVIDER)();
ret = lttng_probe_register(&_TP_COMBINE_TOKENS(__probe_desc___, TRACEPOINT_PROVIDER));
if (ret) {
- fprintf(stderr, "LTTng-UST: Error (%d) while registering tracepoint probe. Duplicate registration of tracepoint probes having the same name is not allowed.\n", ret);
+ fprintf(stderr, "LTTng-UST: Error (%d) while registering tracepoint probe.\n", ret);
abort();
}
}