dev/dtrace/dtrace.c

200 static dtrace_meta_t	*dtrace_meta_pid;	/* user-land meta provider */
254  * (3) dtrace_meta_lock is required when manipulating meta provider state, or
255  *     when meta provider state must be held constant.
292 static lck_mtx_t	dtrace_meta_lock;	/* meta-provider state lock */
8024 	dtrace_meta_t *meta = dtrace_meta_pid;
8025 	dtrace_mops_t *mops = &meta->dtm_mops;
8060 	if ((parg = mops->dtms_provide_pid(meta->dtm_arg, &dhpv, pid)) == NULL)
8063 	meta->dtm_count++;
8095 		mops->dtms_create_probe(meta->dtm_arg, parg, &dhpb);
8137 	dtrace_meta_t *meta = dtrace_meta_pid;
8138 	dtrace_mops_t *mops = &meta->dtm_mops;
8151 	mops->dtms_remove_pid(meta->dtm_arg, &dhpv, pid);
8153 	meta->dtm_count--;
8186 	dtrace_meta_t *meta;
8197 		cmn_err(CE_WARN, "failed to register meta-provider: "
8206 		cmn_err(CE_WARN, "failed to register meta-register %s: "
8211 	meta = kmem_zalloc(sizeof (dtrace_meta_t), KM_SLEEP);
8212 	meta->dtm_mops = *mops;
8217 	meta->dtm_name = kmem_alloc(bufsize, KM_SLEEP);
8218 	(void) strlcpy(meta->dtm_name, name, bufsize);
8221 	meta->dtm_arg = arg;
8229 		cmn_err(CE_WARN, "failed to register meta-register %s: "
8230 		    "user-land meta-provider exists", name);
8231 		kmem_free(meta->dtm_name, strlen(meta->dtm_name) + 1);
8232 		kmem_free(meta, sizeof (dtrace_meta_t));
8236 	dtrace_meta_pid = meta;
8237 	*idp = (dtrace_meta_provider_id_t)meta;
8241 	 * off to the new meta provider now.
8279 		    "dtrace meta-provider %p\n", (void *)old);
13833 		 * If we have a meta provider, remove this helper provider.
13955 		 * there aren't isn't a meta provider registered to deal with
13977 		 * meta provider.
13987 		 * off to the meta provider.