*/
#include <stdio.h>
+#include <urcu/compiler.h>
#include <ust/lttng-events.h>
+#include <ust/ringbuffer-config.h>
/*
* Macro declarations used for all stages.
TP_PARAMS(fields)) \
TRACEPOINT_EVENT_INSTANCE(name, name, TP_PARAMS(proto), TP_PARAMS(args))
+#undef TRACEPOINT_EVENT_NOARGS
+#define TRACEPOINT_EVENT_NOARGS(name, fields) \
+ TRACEPOINT_EVENT_CLASS_NOARGS(name, \
+ TP_PARAMS(fields)) \
+ TRACEPOINT_EVENT_INSTANCE_NOARGS(name, name)
+
+/* Helpers */
+#define _TP_ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+
/*
* Stage 1 of the trace events.
*
* Each event produce an array of fields.
*/
-/* Reset all macros within TRACE_EVENT */
-#include "lttng-tracepoint-events-reset.h"
+/* Reset all macros within TRACEPOINT_EVENT */
+#include <ust/lttng-tracepoint-event-reset.h>
/* Named field types must be defined in lttng-types.h */
#undef TP_FIELDS
#define TP_FIELDS(args...) args /* Only one used in this phase */
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_name, _proto, _args, _fields) \
+#undef TRACEPOINT_EVENT_CLASS_NOARGS
+#define TRACEPOINT_EVENT_CLASS_NOARGS(_name, _fields) \
static const struct lttng_event_field __event_fields___##_name[] = { \
_fields \
};
-#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
+#undef TRACEPOINT_EVENT_CLASS
+#define TRACEPOINT_EVENT_CLASS(_name, _proto, _args, _fields) \
+ TRACEPOINT_EVENT_CLASS_NOARGS(_name, _fields)
+
+#include TRACEPOINT_INCLUDE(TRACEPOINT_INCLUDE_FILE)
/*
* Stage 2 of the trace events.
* Create probe callback prototypes.
*/
-/* Reset all macros within TRACE_EVENT */
-#include "lttng-tracepoint-events-reset.h"
+/* Reset all macros within TRACEPOINT_EVENT */
+#include <ust/lttng-tracepoint-event-reset.h>
#undef TP_PROTO
#define TP_PROTO(args...) args
#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_name, _proto, _args, _fields) \
+#define TRACEPOINT_EVENT_CLASS(_name, _proto, _args, _fields) \
static void __event_probe__##_name(void *__data, _proto);
-#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
+#undef TRACEPOINT_EVENT_CLASS_NOARGS
+#define TRACEPOINT_EVENT_CLASS_NOARGS(_name, _fields) \
+static void __event_probe__##_name(void *__data);
+
+#include TRACEPOINT_INCLUDE(TRACEPOINT_INCLUDE_FILE)
/*
* Stage 3 of the trace events.
/* Named field types must be defined in lttng-types.h */
-/* Reset all macros within TRACE_EVENT */
-#include "lttng-tracepoint-events-reset.h"
+/* Reset all macros within TRACEPOINT_EVENT */
+#include <ust/lttng-tracepoint-event-reset.h>
-#undef TRACEPOINT_EVENT_INSTANCE
-#define TRACEPOINT_EVENT_INSTANCE(_template, _name, _proto, _args) \
+#undef TRACEPOINT_EVENT_INSTANCE_NOARGS
+#define TRACEPOINT_EVENT_INSTANCE_NOARGS(_template, _name) \
{ \
.fields = __event_fields___##_template, \
.name = #_name, \
.probe_callback = (void *) &__event_probe__##_template,\
- .nr_fields = ARRAY_SIZE(__event_fields___##_template), \
+ .nr_fields = _TP_ARRAY_SIZE(__event_fields___##_template), \
},
+#undef TRACEPOINT_EVENT_INSTANCE
+#define TRACEPOINT_EVENT_INSTANCE(_template, _name, _proto, _args) \
+ TRACEPOINT_EVENT_INSTANCE_NOARGS(_template, _name)
+
#define TP_ID1(_token, _system) _token##_system
#define TP_ID(_token, _system) TP_ID1(_token, _system)
-static const struct lttng_event_desc TP_ID(__event_desc___, TRACE_SYSTEM)[] = {
-#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
+static const struct lttng_event_desc TP_ID(__event_desc___, TRACEPOINT_SYSTEM)[] = {
+#include TRACEPOINT_INCLUDE(TRACEPOINT_INCLUDE_FILE)
};
#undef TP_ID1
#define TP_ID(_token, _system) TP_ID1(_token, _system)
/* non-const because list head will be modified when registered. */
-static struct lttng_probe_desc TP_ID(__probe_desc___, TRACE_SYSTEM) = {
- .event_desc = TP_ID(__event_desc___, TRACE_SYSTEM),
- .nr_events = ARRAY_SIZE(TP_ID(__event_desc___, TRACE_SYSTEM)),
+static struct lttng_probe_desc TP_ID(__probe_desc___, TRACEPOINT_SYSTEM) = {
+ .event_desc = TP_ID(__event_desc___, TRACEPOINT_SYSTEM),
+ .nr_events = _TP_ARRAY_SIZE(TP_ID(__event_desc___, TRACEPOINT_SYSTEM)),
};
#undef TP_ID1
* Create static inline function that calculates event size.
*/
-/* Reset all macros within TRACE_EVENT */
-#include "lttng-tracepoint-events-reset.h"
+/* Reset all macros within TRACEPOINT_EVENT */
+#include <ust/lttng-tracepoint-event-reset.h>
/* Named field types must be defined in lttng-types.h */
return __event_len; \
}
-#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
+#undef TRACEPOINT_EVENT_CLASS_NOARGS
+#define TRACEPOINT_EVENT_CLASS_NOARGS(_name, _fields) \
+static inline size_t __event_get_size__##_name(size_t *__dynamic_len) \
+{ \
+ size_t __event_len = 0; \
+ unsigned int __dynamic_len_idx = 0; \
+ \
+ if (0) \
+ (void) __dynamic_len_idx; /* don't warn if unused */ \
+ _fields \
+ return __event_len; \
+}
+
+#include TRACEPOINT_INCLUDE(TRACEPOINT_INCLUDE_FILE)
/*
* Stage 6 of the trace events.
* Create static inline function that calculates event payload alignment.
*/
-/* Reset all macros within TRACE_EVENT */
-#include "lttng-tracepoint-events-reset.h"
+/* Reset all macros within TRACEPOINT_EVENT */
+#include <ust/lttng-tracepoint-event-reset.h>
/* Named field types must be defined in lttng-types.h */
return __event_align; \
}
-#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
+#undef TRACEPOINT_EVENT_CLASS_NOARGS
+#define TRACEPOINT_EVENT_CLASS_NOARGS(_name, _fields) \
+static inline size_t __event_get_align__##_name(void) \
+{ \
+ size_t __event_align = 1; \
+ _fields \
+ return __event_align; \
+}
+
+#include TRACEPOINT_INCLUDE(TRACEPOINT_INCLUDE_FILE)
/*
* execution order, jumping to the appropriate assignment block.
*/
-/* Reset all macros within TRACE_EVENT */
-#include "lttng-tracepoint-events-reset.h"
+/* Reset all macros within TRACEPOINT_EVENT */
+#include <ust/lttng-tracepoint-event-reset.h>
#undef ctf_integer_ext
#define ctf_integer_ext(_type, _item, _src, _byte_order, _base) \
struct lib_ring_buffer_ctx ctx; \
size_t __event_len, __event_align; \
size_t __dynamic_len_idx = 0; \
- size_t __dynamic_len[ARRAY_SIZE(__event_fields___##_name)]; \
+ size_t __dynamic_len[_TP_ARRAY_SIZE(__event_fields___##_name)]; \
int __ret; \
\
if (0) \
(void) __dynamic_len_idx; /* don't warn if unused */ \
- if (unlikely(!ACCESS_ONCE(__chan->session->active))) \
+ if (unlikely(!CMM_ACCESS_ONCE(__chan->session->active))) \
return; \
- if (unlikely(!ACCESS_ONCE(__chan->enabled))) \
+ if (unlikely(!CMM_ACCESS_ONCE(__chan->enabled))) \
return; \
- if (unlikely(!ACCESS_ONCE(__event->enabled))) \
+ if (unlikely(!CMM_ACCESS_ONCE(__event->enabled))) \
return; \
__event_len = __event_get_size__##_name(__dynamic_len, _args); \
__event_align = __event_get_align__##_name(_args); \
__chan->ops->event_commit(&ctx); \
}
-#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
+#undef TRACEPOINT_EVENT_CLASS_NOARGS
+#define TRACEPOINT_EVENT_CLASS_NOARGS(_name, _fields) \
+static void __event_probe__##_name(void *__data) \
+{ \
+ struct ltt_event *__event = __data; \
+ struct ltt_channel *__chan = __event->chan; \
+ struct lib_ring_buffer_ctx ctx; \
+ size_t __event_len, __event_align; \
+ size_t __dynamic_len_idx = 0; \
+ size_t __dynamic_len[_TP_ARRAY_SIZE(__event_fields___##_name)]; \
+ int __ret; \
+ \
+ if (0) \
+ (void) __dynamic_len_idx; /* don't warn if unused */ \
+ if (unlikely(!CMM_ACCESS_ONCE(__chan->session->active))) \
+ return; \
+ if (unlikely(!CMM_ACCESS_ONCE(__chan->enabled))) \
+ return; \
+ if (unlikely(!CMM_ACCESS_ONCE(__event->enabled))) \
+ return; \
+ __event_len = __event_get_size__##_name(__dynamic_len); \
+ __event_align = __event_get_align__##_name(); \
+ lib_ring_buffer_ctx_init(&ctx, __chan->chan, __event, __event_len, \
+ __event_align, -1); \
+ __ret = __chan->ops->event_reserve(&ctx, __event->id); \
+ if (__ret < 0) \
+ return; \
+ _fields \
+ __chan->ops->event_commit(&ctx); \
+}
+
+#include TRACEPOINT_INCLUDE(TRACEPOINT_INCLUDE_FILE)
/*
* Stage 8 of the trace events.
* Register/unregister probes at module load/unload.
*/
-/* Reset all macros within TRACE_EVENT */
-#include "lttng-tracepoint-events-reset.h"
+/* Reset all macros within TRACEPOINT_EVENT */
+#include <ust/lttng-tracepoint-event-reset.h>
#define TP_ID1(_token, _system) _token##_system
#define TP_ID(_token, _system) TP_ID1(_token, _system)
static void __attribute__((constructor))
-TP_ID(__lttng_events_init__, TRACE_SYSTEM)(void)
+TP_ID(__lttng_events_init__, TRACEPOINT_SYSTEM)(void)
{
int ret;
- ret = ltt_probe_register(&TP_ID(__probe_desc___, TRACE_SYSTEM));
+ ret = ltt_probe_register(&TP_ID(__probe_desc___, TRACEPOINT_SYSTEM));
assert(!ret);
}
static void __attribute__((destructor))
-TP_ID(__lttng_events_exit__, TRACE_SYSTEM)(void)
+TP_ID(__lttng_events_exit__, TRACEPOINT_SYSTEM)(void)
{
- ltt_probe_unregister(&TP_ID(__probe_desc___, TRACE_SYSTEM));
+ ltt_probe_unregister(&TP_ID(__probe_desc___, TRACEPOINT_SYSTEM));
}
#undef TP_ID1
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