intel/dtrace/fbt.c

85 	fbt_probe_t *fbt = fbt_probetab[FBT_ADDR2NDX(addr)];
87 	for (; fbt != NULL; fbt = fbt->fbtp_hashnext) {
88 		if ((uintptr_t)fbt->fbtp_patchpoint == addr) {
89 			if (fbt->fbtp_roffset == 0) {
117 				dtrace_probe(fbt->fbtp_id, stack0, stack1,
135 				dtrace_probe(fbt->fbtp_id, fbt->fbtp_roffset,
140 			return (fbt->fbtp_rval);
157 	fbt_probe_t *fbt, *retfbt;
317 		fbt = kmem_zalloc(sizeof (fbt_probe_t), KM_SLEEP);
318 		fbt->fbtp_name = name;
319 		fbt->fbtp_id = dtrace_probe_create(fbt_id, modname,
320 		    name, FBT_ENTRY, 3, fbt);
321 		fbt->fbtp_patchpoint = instr;
322 		fbt->fbtp_ctl = ctl;
323 		fbt->fbtp_loadcnt = ctl->mod_loadcnt;
324 		fbt->fbtp_rval = DTRACE_INVOP_PUSHL_EBP;
325 		fbt->fbtp_savedval = *instr;
326 		fbt->fbtp_patchval = FBT_PATCHVAL;
328 		fbt->fbtp_hashnext = fbt_probetab[FBT_ADDR2NDX(instr)];
329 		fbt->fbtp_symndx = i;
330 		fbt_probetab[FBT_ADDR2NDX(instr)] = fbt;
399 		fbt = kmem_zalloc(sizeof (fbt_probe_t), KM_SLEEP);
400 		fbt->fbtp_name = name;
403 			fbt->fbtp_id = dtrace_probe_create(fbt_id, modname,
404 			    name, FBT_RETURN, 3, fbt);
406 			retfbt->fbtp_next = fbt;
407 			fbt->fbtp_id = retfbt->fbtp_id;
410 		retfbt = fbt;
411 		fbt->fbtp_patchpoint = instr;
412 		fbt->fbtp_ctl = ctl;
413 		fbt->fbtp_loadcnt = ctl->mod_loadcnt;
417 			fbt->fbtp_rval = DTRACE_INVOP_POPL_EBP;
420 			fbt->fbtp_rval = DTRACE_INVOP_LEAVE;
422 		fbt->fbtp_roffset =
427 		fbt->fbtp_rval = DTRACE_INVOP_RET;
428 		fbt->fbtp_roffset =
432 		fbt->fbtp_savedval = *instr;
433 		fbt->fbtp_patchval = FBT_PATCHVAL;
434 		fbt->fbtp_hashnext = fbt_probetab[FBT_ADDR2NDX(instr)];
435 		fbt->fbtp_symndx = i;
436 		fbt_probetab[FBT_ADDR2NDX(instr)] = fbt;
449 	fbt_probe_t *fbt = parg, *next, *hash, *last;
450 	struct modctl *ctl = fbt->fbtp_ctl;
454 		if (ctl != NULL && ctl->mod_loadcnt == fbt->fbtp_loadcnt) {
455 			if ((ctl->mod_loadcnt == fbt->fbtp_loadcnt &&
465 		ndx = FBT_ADDR2NDX(fbt->fbtp_patchpoint);
469 		while (hash != fbt) {
476 			last->fbtp_hashnext = fbt->fbtp_hashnext;
478 			fbt_probetab[ndx] = fbt->fbtp_hashnext;
481 		next = fbt->fbtp_next;
482 		kmem_free(fbt, sizeof (fbt_probe_t));
484 		fbt = next;
485 	} while (fbt != NULL);
492 	fbt_probe_t *fbt = parg;
493 	struct modctl *ctl = fbt->fbtp_ctl;
499 			cmn_err(CE_NOTE, "fbt is failing for probe %s "
501 			    fbt->fbtp_name, ctl->mod_modname);
512 	if (ctl->mod_loadcnt != fbt->fbtp_loadcnt) {
514 			cmn_err(CE_NOTE, "fbt is failing for probe %s "
516 			    fbt->fbtp_name, ctl->mod_modname);
522 	for (; fbt != NULL; fbt = fbt->fbtp_next)
523 		*fbt->fbtp_patchpoint = fbt->fbtp_patchval;
532 	fbt_probe_t *fbt = parg;
533 	struct modctl *ctl = fbt->fbtp_ctl;
538 	if (!ctl->mod_loaded || (ctl->mod_loadcnt != fbt->fbtp_loadcnt))
541 	for (; fbt != NULL; fbt = fbt->fbtp_next)
542 		*fbt->fbtp_patchpoint = fbt->fbtp_savedval;
549 	fbt_probe_t *fbt = parg;
550 	struct modctl *ctl = fbt->fbtp_ctl;
554 	if (!ctl->mod_loaded || (ctl->mod_loadcnt != fbt->fbtp_loadcnt))
557 	for (; fbt != NULL; fbt = fbt->fbtp_next)
558 		*fbt->fbtp_patchpoint = fbt->fbtp_savedval;
565 	fbt_probe_t *fbt = parg;
566 	struct modctl *ctl = fbt->fbtp_ctl;
570 	if (!ctl->mod_loaded || (ctl->mod_loadcnt != fbt->fbtp_loadcnt))
573 	for (; fbt != NULL; fbt = fbt->fbtp_next)
574 		*fbt->fbtp_patchpoint = fbt->fbtp_patchval;
581 	fbt_probe_t *fbt = parg;
582 	struct modctl *ctl = fbt->fbtp_ctl;
591 	if (!ctl->mod_loaded || (ctl->mod_loadcnt != fbt->fbtp_loadcnt))
594 	if (fbt->fbtp_roffset != 0 && desc->dtargd_ndx == 0) {
640 	if (ctf_func_info(fp, fbt->fbtp_symndx, &f) == CTF_ERR)
643 	if (fbt->fbtp_roffset != 0) {
653 		if (ctf_func_args(fp, fbt->fbtp_symndx, argc, argv) == CTF_ERR)
723 	if (ddi_create_minor_node(devi, "fbt", S_IFCHR, 0,
725 	    dtrace_register("fbt", &fbt_attr, DTRACE_PRIV_KERNEL, NULL,