+/*
+ * Use getenv() directly and bypass lttng-ust helper functions
+ * because we may not have access to lttng-ust shared libraries.
+ */
+#ifdef LTTNG_UST_DEBUG
+static inline
+bool lttng_ust_tracepoint_logging_debug_enabled(void)
+{
+ return true;
+}
+#else /* #ifdef LTTNG_UST_DEBUG */
+static inline
+bool lttng_ust_tracepoint_logging_debug_enabled(void)
+{
+ return getenv("LTTNG_UST_DEBUG");
+}
+#endif /* #ifdef LTTNG_UST_DEBUG */
+
+#ifdef LTTNG_UST_ABORT_ON_CRITICAL
+static inline
+bool lttng_ust_tracepoint_logging_abort_on_critical_enabled(void)
+{
+ return true;
+}
+#else /* #ifdef LTTNG_UST_ABORT_ON_CRITICAL */
+static inline
+bool lttng_ust_tracepoint_logging_abort_on_critical_enabled(void)
+{
+ return getenv("LTTNG_UST_ABORT_ON_CRITICAL");
+}
+#endif
+
+#define LTTNG_UST_TRACEPOINT_THIS_IP \
+ ({ __label__ here; here: &&here; })
+
+static void
+lttng_ust_tracepoints_print_disabled_message(void)
+{
+ if (lttng_ust_tracepoint_logging_debug_enabled())
+ fprintf(stderr, "lttng-ust-tracepoint [%ld]: Critical: dlopen() failed to find '%s', tracepoints in this binary won't be registered. "
+ "(at addr=%p in %s() at " __FILE__ ":" lttng_ust_stringify(__LINE__) ")\n",
+ (long) getpid(),
+ LTTNG_UST_TRACEPOINT_LIB_SONAME,
+ LTTNG_UST_TRACEPOINT_THIS_IP,
+ __func__);
+ if (lttng_ust_tracepoint_logging_abort_on_critical_enabled())
+ abort();
+}
+