- struct lttng_probe_desc *iter;
- struct cds_list_head *probe_list;
-
- probe_list = lttng_get_probe_list_head();
- cds_list_for_each_entry(iter, probe_list, head) {
- if (!strcmp(iter->provider, provider))
- return iter;
+ /*
+ * Check tracepoint provider version compatibility.
+ */
+ if (desc->major <= LTTNG_UST_PROVIDER_MAJOR) {
+ DBG("Provider \"%s\" accepted, version %u.%u is compatible "
+ "with LTTng UST provider version %u.%u.",
+ desc->provider, 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, desc->major, desc->minor,
+ LTTNG_UST_PROVIDER_MAJOR,
+ LTTNG_UST_PROVIDER_MINOR);
+ return 0; /* reject */