dev/fbt/fbt.c

23  * $FreeBSD: stable/11/sys/cddl/dev/fbt/fbt.c 324282 2017-10-04 15:47:16Z markj $
64 #include "fbt.h"
66 MALLOC_DEFINE(M_FBT, "fbt", "Function Boundary Tracing");
86 	.d_name		= "fbt",
144 	fbt_probe_t *fbt;
148 		fbt = fbt_probetab[i];
150 		for (; fbt != NULL; fbt = fbt->fbtp_next)
151 			fbt_patch_tracepoint(fbt, fbt->fbtp_savedval);
201 	fbt_probe_t *fbt = parg, *next, *hash, *last;
206 		ctl = fbt->fbtp_ctl;
213 		ndx = FBT_ADDR2NDX(fbt->fbtp_patchpoint);
217 		while (hash != fbt) {
224 			last->fbtp_hashnext = fbt->fbtp_hashnext;
226 			fbt_probetab[ndx] = fbt->fbtp_hashnext;
229 		next = fbt->fbtp_next;
230 		free(fbt, M_FBT);
232 		fbt = next;
233 	} while (fbt != NULL);
239 	fbt_probe_t *fbt = parg;
240 	modctl_t *ctl = fbt->fbtp_ctl;
249 	if (ctl->loadcnt != fbt->fbtp_loadcnt) {
251 			printf("fbt is failing for probe %s "
253 			    fbt->fbtp_name, ctl->filename);
259 	for (; fbt != NULL; fbt = fbt->fbtp_next)
260 		fbt_patch_tracepoint(fbt, fbt->fbtp_patchval);
266 	fbt_probe_t *fbt = parg;
267 	modctl_t *ctl = fbt->fbtp_ctl;
272 	if ((ctl->loadcnt != fbt->fbtp_loadcnt))
275 	for (; fbt != NULL; fbt = fbt->fbtp_next)
276 		fbt_patch_tracepoint(fbt, fbt->fbtp_savedval);
282 	fbt_probe_t *fbt = parg;
283 	modctl_t *ctl = fbt->fbtp_ctl;
287 	if ((ctl->loadcnt != fbt->fbtp_loadcnt))
290 	for (; fbt != NULL; fbt = fbt->fbtp_next)
291 		fbt_patch_tracepoint(fbt, fbt->fbtp_savedval);
297 	fbt_probe_t *fbt = parg;
298 	modctl_t *ctl = fbt->fbtp_ctl;
302 	if ((ctl->loadcnt != fbt->fbtp_loadcnt))
305 	for (; fbt != NULL; fbt = fbt->fbtp_next)
306 		fbt_patch_tracepoint(fbt, fbt->fbtp_patchval);
978 	fbt_probe_t *fbt = parg;
980 	modctl_t *ctl = fbt->fbtp_ctl;
982 	int symindx = fbt->fbtp_symindx;
987 	if (fbt->fbtp_roffset != 0 && desc->dtargd_ndx == 0) {
1042 	if (fbt->fbtp_roffset != 0) {
1074 	/* Create the /dev/dtrace/fbt entry. */
1076 	    "dtrace/fbt");
1092 	if (dtrace_register("fbt", &fbt_attr, DTRACE_PRIV_USER,
1157 DEV_MODULE(fbt, fbt_modevent, NULL);
1158 MODULE_VERSION(fbt, 1);
1159 MODULE_DEPEND(fbt, dtrace, 1, 1, 1);
1160 MODULE_DEPEND(fbt, opensolaris, 1, 1, 1);