common/dtrace/dtrace.c

186 static dtrace_genid_t	dtrace_retained_gen;	/* current retained enab gen */
7520 dtrace_probe_enable(const dtrace_probedesc_t *desc, dtrace_enabling_t *enab)
7535 		(void) dtrace_ecb_create_enable(NULL, enab);
7540 	dtrace_cred2priv(enab->dten_vstate->dtvs_state->dts_cred.dcr_cred,
7544 	    enab));
9883     dtrace_enabling_t *enab)
9889 	dtrace_ecbdesc_t *desc = enab->dten_current;
9955 		if ((enab->dten_error = dtrace_ecb_action_add(ecb, act)) != 0) {
9970 	dtrace_enabling_t *enab = arg;
9971 	dtrace_state_t *state = enab->dten_vstate->dtvs_state;
9975 	if (probe != NULL && probe->dtpr_gen < enab->dten_probegen) {
9984 	if ((ecb = dtrace_ecb_create(state, probe, enab)) == NULL)
10501 	dtrace_enabling_t *enab;
10503 	enab = kmem_zalloc(sizeof (dtrace_enabling_t), KM_SLEEP);
10504 	enab->dten_vstate = vstate;
10506 	return (enab);
10510 dtrace_enabling_add(dtrace_enabling_t *enab, dtrace_ecbdesc_t *ecb)
10519 	ASSERT(enab->dten_probegen == 0);
10520 	ASSERT(enab->dten_next == NULL && enab->dten_prev == NULL);
10522 	if (enab->dten_ndesc < enab->dten_maxdesc) {
10523 		enab->dten_desc[enab->dten_ndesc++] = ecb;
10527 	osize = enab->dten_maxdesc * sizeof (dtrace_enabling_t *);
10529 	if (enab->dten_maxdesc == 0) {
10530 		enab->dten_maxdesc = 1;
10532 		enab->dten_maxdesc <<= 1;
10535 	ASSERT(enab->dten_ndesc < enab->dten_maxdesc);
10537 	nsize = enab->dten_maxdesc * sizeof (dtrace_enabling_t *);
10539 	bcopy(enab->dten_desc, ndesc, osize);
10540 	kmem_free(enab->dten_desc, osize);
10542 	enab->dten_desc = ndesc;
10543 	enab->dten_desc[enab->dten_ndesc++] = ecb;
10547 dtrace_enabling_addlike(dtrace_enabling_t *enab, dtrace_ecbdesc_t *ecb,
10571 	dtrace_enabling_add(enab, new);
10575 dtrace_enabling_dump(dtrace_enabling_t *enab)
10579 	for (i = 0; i < enab->dten_ndesc; i++) {
10580 		dtrace_probedesc_t *desc = &enab->dten_desc[i]->dted_probe;
10589 dtrace_enabling_destroy(dtrace_enabling_t *enab)
10593 	dtrace_vstate_t *vstate = enab->dten_vstate;
10597 	for (i = 0; i < enab->dten_ndesc; i++) {
10601 		ep = enab->dten_desc[i];
10614 	kmem_free(enab->dten_desc,
10615 	    enab->dten_maxdesc * sizeof (dtrace_enabling_t *));
10621 	if (enab->dten_prev != NULL || enab->dten_next != NULL ||
10622 	    dtrace_retained == enab) {
10623 		ASSERT(enab->dten_vstate->dtvs_state != NULL);
10624 		ASSERT(enab->dten_vstate->dtvs_state->dts_nretained > 0);
10625 		enab->dten_vstate->dtvs_state->dts_nretained--;
10629 	if (enab->dten_prev == NULL) {
10630 		if (dtrace_retained == enab) {
10631 			dtrace_retained = enab->dten_next;
10637 		ASSERT(enab != dtrace_retained);
10639 		enab->dten_prev->dten_next = enab->dten_next;
10642 	if (enab->dten_next != NULL) {
10644 		enab->dten_next->dten_prev = enab->dten_prev;
10647 	kmem_free(enab, sizeof (dtrace_enabling_t));
10651 dtrace_enabling_retain(dtrace_enabling_t *enab)
10656 	ASSERT(enab->dten_next == NULL && enab->dten_prev == NULL);
10657 	ASSERT(enab->dten_vstate != NULL);
10659 	state = enab->dten_vstate->dtvs_state;
10672 		dtrace_retained = enab;
10676 	enab->dten_next = dtrace_retained;
10677 	dtrace_retained->dten_prev = enab;
10678 	dtrace_retained = enab;
10687 	dtrace_enabling_t *new, *enab;
10702 	for (enab = dtrace_retained; enab != NULL; enab = enab->dten_next) {
10709 		ASSERT(enab->dten_vstate->dtvs_state != NULL);
10711 		if (enab->dten_vstate->dtvs_state != state)
10718 		for (i = 0; i < enab->dten_ndesc; i++) {
10719 			dtrace_ecbdesc_t *ep = enab->dten_desc[i];
10754 	dtrace_enabling_t *enab, *next;
10762 	for (enab = dtrace_retained; enab != NULL; enab = next) {
10763 		next = enab->dten_next;
10769 		ASSERT(enab->dten_vstate->dtvs_state != NULL);
10771 		if (enab->dten_vstate->dtvs_state == state) {
10773 			dtrace_enabling_destroy(enab);
10781 dtrace_enabling_match(dtrace_enabling_t *enab, int *nmatched)
10789 	for (i = 0; i < enab->dten_ndesc; i++) {
10790 		dtrace_ecbdesc_t *ep = enab->dten_desc[i];
10792 		enab->dten_current = ep;
10793 		enab->dten_error = 0;
10799 		if ((matched = dtrace_probe_enable(&ep->dted_probe, enab)) < 0)
10804 		if (enab->dten_error != 0) {
10821 				    enab->dten_error);
10824 			return (enab->dten_error);
10828 	enab->dten_probegen = dtrace_probegen;
10838 	dtrace_enabling_t *enab;
10853 	for (enab = dtrace_retained; enab != NULL; enab = enab->dten_next) {
10854 		cred_t *cr = enab->dten_vstate->dtvs_state->dts_cred.dcr_cred;
10858 			(void) dtrace_enabling_match(enab, NULL);
10878 	dtrace_enabling_t *enab;
10881 	for (enab = dtrace_retained; enab != NULL; enab = enab->dten_next) {
10882 		ASSERT(enab->dten_vstate->dtvs_state != NULL);
10884 		if (enab->dten_vstate->dtvs_state != state)
10894 		if (enab->dten_primed)
10897 		for (i = 0; i < enab->dten_ndesc; i++) {
10898 			enab->dten_current = enab->dten_desc[i];
10899 			(void) dtrace_probe_enable(NULL, enab);
10902 		enab->dten_primed = 1;
10928 		dtrace_enabling_t *enab;
10933 		for (enab = dtrace_retained; enab != NULL;
10934 		    enab = enab->dten_next) {
10935 			for (i = 0; i < enab->dten_ndesc; i++) {
10936 				desc = enab->dten_desc[i]->dted_probe;
11687 	dtrace_enabling_t *enab;
11850 	if ((enab = *enabp) == NULL)
11851 		enab = *enabp = dtrace_enabling_create(vstate);
11861 			dtrace_enabling_destroy(enab);
11866 		dtrace_enabling_add(enab, ep);
13762 	dtrace_enabling_t *enab = NULL;
13773 	if ((rv = dtrace_dof_slurp(dof, vstate, NULL, &enab,
13791 				dtrace_enabling_destroy(enab);
13803 	for (i = 0; i < enab->dten_ndesc; i++) {
13804 		dtrace_ecbdesc_t *ep = enab->dten_desc[i];
13823 			dtrace_enabling_destroy(enab);
13831 	if (nhelpers < enab->dten_ndesc)
13835 	dtrace_enabling_destroy(enab);
14319 	dtrace_enabling_t *enab;
14461 		if ((enab = dtrace_anon.dta_enabling) != NULL)
14462 			(void) dtrace_enabling_match(enab, NULL);
14866 		dtrace_enabling_t *enab = NULL;
14896 		if (dtrace_dof_slurp(dof, vstate, cr, &enab, 0, B_TRUE) != 0) {
14904 			dtrace_enabling_destroy(enab);
14911 		if ((err = dtrace_enabling_match(enab, rv)) == 0) {
14912 			err = dtrace_enabling_retain(enab);
14914 			dtrace_enabling_destroy(enab);