#include <linux/debugfs.h>
#include "lttng.h"
#include "lttng-types.h"
+#include "lttng-probe-user.h"
#include "../wrapper/vmalloc.h" /* for wrapper_vmalloc_sync_all() */
#include "../wrapper/ringbuffer/frontend_types.h"
#include "../lttng-events.h"
* Macro declarations used for all stages.
*/
+/*
+ * LTTng name mapping macros. LTTng remaps some of the kernel events to
+ * enforce name-spacing.
+ */
+#undef TRACE_EVENT_MAP
+#define TRACE_EVENT_MAP(name, map, proto, args, tstruct, assign, print) \
+ DECLARE_EVENT_CLASS(map, \
+ PARAMS(proto), \
+ PARAMS(args), \
+ PARAMS(tstruct), \
+ PARAMS(assign), \
+ PARAMS(print)) \
+ DEFINE_EVENT_MAP(map, name, map, PARAMS(proto), PARAMS(args))
+
+#undef TRACE_EVENT_MAP_NOARGS
+#define TRACE_EVENT_MAP_NOARGS(name, map, tstruct, assign, print) \
+ DECLARE_EVENT_CLASS_NOARGS(map, \
+ PARAMS(tstruct), \
+ PARAMS(assign), \
+ PARAMS(print)) \
+ DEFINE_EVENT_MAP_NOARGS(map, name, map)
+
+#undef DEFINE_EVENT_PRINT_MAP
+#define DEFINE_EVENT_PRINT_MAP(template, name, map, proto, args, print) \
+ DEFINE_EVENT_MAP(template, name, map, PARAMS(proto), PARAMS(args))
+
+/* Callbacks are meaningless to LTTng. */
+#undef TRACE_EVENT_FN_MAP
+#define TRACE_EVENT_FN_MAP(name, map, proto, args, tstruct, \
+ assign, print, reg, unreg) \
+ TRACE_EVENT_MAP(name, map, PARAMS(proto), PARAMS(args), \
+ PARAMS(tstruct), PARAMS(assign), PARAMS(print)) \
+
+#undef TRACE_EVENT_CONDITION_MAP
+#define TRACE_EVENT_CONDITION_MAP(name, map, proto, args, cond, tstruct, assign, print) \
+ TRACE_EVENT_MAP(name, map, \
+ PARAMS(proto), \
+ PARAMS(args), \
+ PARAMS(tstruct), \
+ PARAMS(assign), \
+ PARAMS(print))
+
/*
* DECLARE_EVENT_CLASS can be used to add a generic function
* handlers for events. That is, if all events have the same
*/
#undef TRACE_EVENT
-#define TRACE_EVENT(name, proto, args, tstruct, assign, print) \
- DECLARE_EVENT_CLASS(name, \
- PARAMS(proto), \
- PARAMS(args), \
- PARAMS(tstruct), \
- PARAMS(assign), \
- PARAMS(print)) \
- DEFINE_EVENT(name, name, PARAMS(proto), PARAMS(args))
+#define TRACE_EVENT(name, proto, args, tstruct, assign, print) \
+ TRACE_EVENT_MAP(name, name, \
+ PARAMS(proto), \
+ PARAMS(args), \
+ PARAMS(tstruct), \
+ PARAMS(assign), \
+ PARAMS(print))
#undef TRACE_EVENT_NOARGS
-#define TRACE_EVENT_NOARGS(name, tstruct, assign, print) \
- DECLARE_EVENT_CLASS_NOARGS(name, \
- PARAMS(tstruct), \
- PARAMS(assign), \
- PARAMS(print)) \
- DEFINE_EVENT_NOARGS(name, name)
-
+#define TRACE_EVENT_NOARGS(name, tstruct, assign, print) \
+ TRACE_EVENT_MAP_NOARGS(name, name, \
+ PARAMS(tstruct), \
+ PARAMS(assign), \
+ PARAMS(print))
#undef DEFINE_EVENT_PRINT
#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
- DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
+ DEFINE_EVENT_PRINT_MAP(template, name, name, \
+ PARAMS(proto), PARAMS(args), PARAMS(print_))
-/* Callbacks are meaningless to LTTng. */
#undef TRACE_EVENT_FN
#define TRACE_EVENT_FN(name, proto, args, tstruct, \
assign, print, reg, unreg) \
- TRACE_EVENT(name, PARAMS(proto), PARAMS(args), \
- PARAMS(tstruct), PARAMS(assign), PARAMS(print)) \
+ TRACE_EVENT_FN_MAP(name, name, PARAMS(proto), PARAMS(args), \
+ PARAMS(tstruct), PARAMS(assign), PARAMS(print), \
+ PARAMS(reg), PARAMS(unreg)) \
+
+#undef DEFINE_EVENT
+#define DEFINE_EVENT(template, name, proto, args) \
+ DEFINE_EVENT_MAP(template, name, name, PARAMS(proto), PARAMS(args))
+
+#undef DEFINE_EVENT_NOARGS
+#define DEFINE_EVENT_NOARGS(template, name) \
+ DEFINE_EVENT_MAP_NOARGS(template, name, name)
+
+#undef TRACE_EVENT_CONDITION
+#define TRACE_EVENT_CONDITION(name, proto, args, cond, tstruct, assign, print) \
+ TRACE_EVENT_CONDITION_MAP(name, name, \
+ PARAMS(proto), \
+ PARAMS(args), \
+ PARAMS(cond), \
+ PARAMS(tstruct), \
+ PARAMS(assign), \
+ PARAMS(print))
/*
* Stage 1 of the trace events.
#undef TP_ARGS
#define TP_ARGS(args...) args
-#undef DEFINE_EVENT
-#define DEFINE_EVENT(_template, _name, _proto, _args) \
+#undef DEFINE_EVENT_MAP
+#define DEFINE_EVENT_MAP(_template, _name, _map, _proto, _args) \
void trace_##_name(_proto);
-#undef DEFINE_EVENT_NOARGS
-#define DEFINE_EVENT_NOARGS(_template, _name) \
+#undef DEFINE_EVENT_MAP_NOARGS
+#define DEFINE_EVENT_MAP_NOARGS(_template, _name, _map) \
void trace_##_name(void *__data);
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
#define TP_PROBE_CB(_template) &__event_probe__##_template
#endif
-#undef DEFINE_EVENT_NOARGS
-#define DEFINE_EVENT_NOARGS(_template, _name) \
-static const struct lttng_event_desc __event_desc___##_name = { \
+#undef DEFINE_EVENT_MAP_NOARGS
+#define DEFINE_EVENT_MAP_NOARGS(_template, _name, _map) \
+static const struct lttng_event_desc __event_desc___##_map = { \
.fields = __event_fields___##_template, \
- .name = #_name, \
+ .name = #_map, \
.probe_callback = (void *) TP_PROBE_CB(_template), \
.nr_fields = ARRAY_SIZE(__event_fields___##_template), \
.owner = THIS_MODULE, \
};
-#undef DEFINE_EVENT
-#define DEFINE_EVENT(_template, _name, _proto, _args) \
- DEFINE_EVENT_NOARGS(_template, _name)
+#undef DEFINE_EVENT_MAP
+#define DEFINE_EVENT_MAP(_template, _name, _map, _proto, _args) \
+ DEFINE_EVENT_MAP_NOARGS(_template, _name, _map)
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
#include "lttng-events-reset.h" /* Reset all macros within TRACE_EVENT */
-#undef DEFINE_EVENT_NOARGS
-#define DEFINE_EVENT_NOARGS(_template, _name) \
- &__event_desc___##_name,
+#undef DEFINE_EVENT_MAP_NOARGS
+#define DEFINE_EVENT_MAP_NOARGS(_template, _name, _map) \
+ &__event_desc___##_map,
-#undef DEFINE_EVENT
-#define DEFINE_EVENT(_template, _name, _proto, _args) \
- DEFINE_EVENT_NOARGS(_template, _name)
+#undef DEFINE_EVENT_MAP
+#define DEFINE_EVENT_MAP(_template, _name, _map, _proto, _args) \
+ DEFINE_EVENT_MAP_NOARGS(_template, _name, _map)
#define TP_ID1(_token, _system) _token##_system
#define TP_ID(_token, _system) TP_ID1(_token, _system)
#undef __string_from_user
#define __string_from_user(_item, _src) \
__event_len += __dynamic_len[__dynamic_len_idx++] = \
- max_t(size_t, strlen_user(_src), 1);
+ max_t(size_t, lttng_strlen_user_inatomic(_src), 1);
#undef TP_PROTO
#define TP_PROTO(args...) args
#define module_exit_eval1(_token, _system) module_exit(_token##_system)
#define module_exit_eval(_token, _system) module_exit_eval1(_token, _system)
-#ifndef TP_MODULE_OVERRIDE
+#ifndef TP_MODULE_NOINIT
static int TP_ID(__lttng_events_init__, TRACE_SYSTEM)(void)
{
wrapper_vmalloc_sync_all();
return lttng_probe_register(&TP_ID(__probe_desc___, TRACE_SYSTEM));
}
-module_init_eval(__lttng_events_init__, TRACE_SYSTEM);
-
static void TP_ID(__lttng_events_exit__, TRACE_SYSTEM)(void)
{
lttng_probe_unregister(&TP_ID(__probe_desc___, TRACE_SYSTEM));
}
+#ifndef TP_MODULE_NOAUTOLOAD
+module_init_eval(__lttng_events_init__, TRACE_SYSTEM);
module_exit_eval(__lttng_events_exit__, TRACE_SYSTEM);
#endif
+#endif
+
#undef module_init_eval
#undef module_exit_eval
#undef TP_ID1
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