62  * optimizes away tail-calls -- so the following frames are optimized away:
68  * frame cannot be tail-call eliminated, yielding four frames in this case.
71  * provider should ideally figure this out on-the-fly by hitting one of its own
92 #define	PROF_PREFIX_PROFILE	"profile-"
93 #define	PROF_PREFIX_TICK	"tick-"
128  * system resources by creating a slew of profile probes). At mod load time,
129  * this gets its value from PROFILE_MAX_DEFAULT or profile-max-probes if it's
140 	profile_probe_t *prof = pcpu->profc_probe;  in profile_fire()
143 	late = dtrace_gethrtime() - pcpu->profc_expected;  in profile_fire()
144 	pcpu->profc_expected += pcpu->profc_interval;  in profile_fire()
146 	dtrace_probe(prof->prof_id, CPU->cpu_profile_pc,  in profile_fire()
147 	    CPU->cpu_profile_upc, late, 0, 0);  in profile_fire()
155 	dtrace_probe(prof->prof_id, CPU->cpu_profile_pc,  in profile_tick()
156 	    CPU->cpu_profile_upc, 0, 0, 0);  in profile_tick()
181 	(void) strcpy(prof->prof_name, name);  in profile_create()
182 	prof->prof_interval = interval;  in profile_create()
183 	prof->prof_cyclic = CYCLIC_NONE;  in profile_create()
184 	prof->prof_kind = kind;  in profile_create()
185 	prof->prof_id = dtrace_probe_create(profile_id,  in profile_create()
193 	int i, j, rate, kind;  in profile_provide()  local
235 			if ((rate = profile_rates[i]) == 0)  in profile_provide()
239 			    PROF_PREFIX_PROFILE, rate);  in profile_provide()
240 			profile_create(NANOSEC / rate, n, PROF_PROFILE);  in profile_provide()
244 			if ((rate = profile_ticks[i]) == 0)  in profile_provide()
248 			    PROF_PREFIX_TICK, rate);  in profile_provide()
249 			profile_create(NANOSEC / rate, n, PROF_TICK);  in profile_provide()
255 	name = desc->dtpd_name;  in profile_provide()
269 	j = strlen(name) - len;  in profile_provide()
274 	for (j = strlen(name); j >= len; j--) {  in profile_provide()
285 	for (; j >= len; j--) {  in profile_provide()
289 		val += (name[j] - '0') * mult;  in profile_provide()
297 	 * Look-up the suffix to determine the multiplier.  in profile_provide()
311 		 * The default is frequency-per-second.  in profile_provide()
327 	ASSERT(prof->prof_cyclic == CYCLIC_NONE);  in profile_destroy()
342 	pcpu->profc_probe = prof;  in profile_online()
344 	hdlr->cyh_func = profile_fire;  in profile_online()
345 	hdlr->cyh_arg = pcpu;  in profile_online()
346 	hdlr->cyh_level = CY_HIGH_LEVEL;  in profile_online()
348 	when->cyt_interval = prof->prof_interval;  in profile_online()
349 	when->cyt_when = dtrace_gethrtime() + when->cyt_interval;  in profile_online()
351 	pcpu->profc_expected = when->cyt_when;  in profile_online()
352 	pcpu->profc_interval = when->cyt_interval;  in profile_online()
361 	ASSERT(pcpu->profc_probe == arg);  in profile_offline()
374 	ASSERT(prof->prof_interval != 0);  in profile_enable()
377 	if (prof->prof_kind == PROF_TICK) {  in profile_enable()
382 		when.cyt_interval = prof->prof_interval;  in profile_enable()
385 		ASSERT(prof->prof_kind == PROF_PROFILE);  in profile_enable()
391 	if (prof->prof_kind == PROF_TICK) {  in profile_enable()
392 		prof->prof_cyclic = cyclic_add(&hdlr, &when);  in profile_enable()
394 		prof->prof_cyclic = cyclic_add_omni(&omni);  in profile_enable()
405 	ASSERT(prof->prof_cyclic != CYCLIC_NONE);  in profile_disable()
408 	cyclic_remove(prof->prof_cyclic);  in profile_disable()
409 	prof->prof_cyclic = CYCLIC_NONE;  in profile_disable()
419 	if (CPU->cpu_profile_pc != 0) {  in profile_mode()
425 	if (prof->prof_kind == PROF_TICK) {  in profile_mode()
428 		ASSERT(prof->prof_kind == PROF_PROFILE);  in profile_mode()
478 	    "profile-max-probes", PROFILE_MAX_DEFAULT);  in profile_attach()