+static
+int check_provider_version(const struct lttng_ust_probe_desc *desc)
+{
+ /*
+ * Check tracepoint provider version compatibility.
+ */
+ if (desc->major <= LTTNG_UST_PROVIDER_MAJOR &&
+ desc->major >= LTTNG_UST_PROVIDER_MAJOR_OLDEST_COMPATIBLE) {
+ DBG("Provider \"%s\" accepted, version %u.%u is compatible "
+ "with LTTng UST provider version %u.%u.",
+ desc->provider_name, desc->major, desc->minor,
+ LTTNG_UST_PROVIDER_MAJOR,
+ LTTNG_UST_PROVIDER_MINOR);
+ if (desc->major < LTTNG_UST_PROVIDER_MAJOR) {
+ DBG("However, some LTTng UST features might not be "
+ "available for this provider unless it is "
+ "recompiled against a more recent LTTng UST.");
+ }
+ return 1; /* accept */
+ } else {
+ ERR("Provider \"%s\" rejected, version %u.%u is incompatible "
+ "with LTTng UST provider version %u.%u. Please upgrade "
+ "LTTng UST.",
+ desc->provider_name, desc->major, desc->minor,
+ LTTNG_UST_PROVIDER_MAJOR,
+ LTTNG_UST_PROVIDER_MINOR);
+ return 0; /* reject */
+ }
+}
+