Cygwin: Pass file paths instead of file descriptors over UNIX sockets

[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 c2e951928ce99bab360dfa7a52f813993e90b46f..5f687090234d9540d5e983b31493478e2935d3bc 100644 (file)
--- a/include/lttng/ust-tracepoint-event.h
+++ b/include/lttng/ust-tracepoint-event.h
@@ -112,7 +112,7 @@ void _TP_COMBINE_TOKENS(__tracepoint_provider_mismatch_, TRACEPOINT_PROVIDER)(vo
 #define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args)  \
        __tracepoint_provider_mismatch_##_provider();
 
-static __attribute__((unused))
+static inline
 void _TP_COMBINE_TOKENS(__tracepoint_provider_check_, TRACEPOINT_PROVIDER)(void)
 {
 #include TRACEPOINT_INCLUDE
@@ -204,7 +204,7 @@ static const char                                                   \
        },
 
 #undef TP_FIELDS
-#define TP_FIELDS(args...) args        /* Only one used in this phase */
+#define TP_FIELDS(...) __VA_ARGS__     /* Only one used in this phase */
 
 #undef TRACEPOINT_EVENT_CLASS
 #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)                            \
@@ -224,7 +224,7 @@ static const char                                                   \
 #include <lttng/ust-tracepoint-event-reset.h>
 
 #undef TP_ARGS
-#define TP_ARGS(args...) args
+#define TP_ARGS(...) __VA_ARGS__
 
 #undef TRACEPOINT_EVENT_CLASS
 #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)               \
@@ -271,10 +271,10 @@ static void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args));
        __event_len += __dynamic_len[__dynamic_len_idx++] = strlen(_src) + 1;
 
 #undef TP_ARGS
-#define TP_ARGS(args...) args
+#define TP_ARGS(...) __VA_ARGS__
 
 #undef TP_FIELDS
-#define TP_FIELDS(args...) args
+#define TP_FIELDS(...) __VA_ARGS__
 
 #undef TRACEPOINT_EVENT_CLASS
 #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)      \
@@ -322,10 +322,10 @@ static inline size_t __event_get_size__##_provider##___##_name(size_t *__dynamic
 #define ctf_string(_item, _src)
 
 #undef TP_ARGS
-#define TP_ARGS(args...) args
+#define TP_ARGS(...) __VA_ARGS__
 
 #undef TP_FIELDS
-#define TP_FIELDS(args...) args
+#define TP_FIELDS(...) __VA_ARGS__
 
 #undef TRACEPOINT_EVENT_CLASS
 #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)             \
@@ -393,10 +393,10 @@ size_t __event_get_align__##_provider##___##_name(_TP_ARGS_PROTO(_args))      \
 #define __get_dynamic_len(field)       __dynamic_len[__dynamic_len_idx++]
 
 #undef TP_ARGS
-#define TP_ARGS(args...) args
+#define TP_ARGS(...) __VA_ARGS__
 
 #undef TP_FIELDS
-#define TP_FIELDS(args...) args
+#define TP_FIELDS(...) __VA_ARGS__
 
 #undef TRACEPOINT_EVENT_CLASS
 #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)             \
@@ -444,7 +444,7 @@ static void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args))\
 #include <lttng/ust-tracepoint-event-reset.h>
 
 #undef TP_ARGS
-#define TP_ARGS(args...) args
+#define TP_ARGS(...) __VA_ARGS__
 
 #define _TP_EXTRACT_STRING2(...)       #__VA_ARGS__
 
@@ -496,7 +496,7 @@ static const int *                                                         \
 const struct lttng_event_desc __event_desc___##_provider##_##_name = {        \
        .fields = __event_fields___##_provider##___##_template,                \
        .name = #_provider ":" #_name,                                         \
-       .probe_callback = (void *) &__event_probe__##_provider##___##_template,\
+       .probe_callback = (void (*)(void)) &__event_probe__##_provider##___##_template,\
        .nr_fields = _TP_ARRAY_SIZE(__event_fields___##_provider##___##_template), \
        .loglevel = &__ref_loglevel___##_provider##___##_name,                 \
        .signature = __tp_event_signature___##_provider##___##_template,       \
@@ -551,6 +551,15 @@ _TP_COMBINE_TOKENS(__lttng_events_init__, TRACEPOINT_PROVIDER)(void)
 {
        int ret;
 
+       /*
+        * __tracepoint_provider_check_ ## TRACEPOINT_PROVIDER() is a
+        * static inline function that ensures every probe PROVIDER
+        * argument match the provider within which they appear. It
+        * calls empty static inline functions, and therefore has no
+        * runtime effect. However, if it detects an error, a linker
+        * error will appear.
+        */
+       _TP_COMBINE_TOKENS(__tracepoint_provider_check_, TRACEPOINT_PROVIDER)();
        ret = ltt_probe_register(&_TP_COMBINE_TOKENS(__probe_desc___, TRACEPOINT_PROVIDER));
        assert(!ret);
 }