powerpc/dtrace/fasttrap_isa.c

87 fasttrap_tracepoint_install(proc_t *p, fasttrap_tracepoint_t *tp)
91 	if (uwrite(p, &instr, 4, tp->ftt_pc) != 0)
98 fasttrap_tracepoint_remove(proc_t *p, fasttrap_tracepoint_t *tp)
106 	if (uread(p, &instr, 4, tp->ftt_pc) != 0)
110 	if (uwrite(p, &tp->ftt_instr, 4, tp->ftt_pc) != 0)
117 fasttrap_tracepoint_init(proc_t *p, fasttrap_tracepoint_t *tp, uintptr_t pc,
144 	tp->ftt_type = FASTTRAP_T_COMMON;
145 	tp->ftt_instr = instr;
166 			tp->ftt_type = FASTTRAP_T_NOP;
169 		tp->ftt_type = FASTTRAP_T_BC;
170 		tp->ftt_dest = instr & 0x0000FFFC; /* Extract target address */
172 			tp->ftt_dest |= 0xFFFF0000;
175 			tp->ftt_dest += pc;
176 		tp->ftt_bo = OP_BO(instr);
177 		tp->ftt_bi = OP_BI(instr);
180 		tp->ftt_type = FASTTRAP_T_B;
181 		tp->ftt_dest = instr & 0x03FFFFFC; /* Extract target address */
183 			tp->ftt_dest |= 0xFC000000;
186 			tp->ftt_dest += pc;
191 			tp->ftt_type = FASTTRAP_T_BCTR;
192 			tp->ftt_bo = OP_BO(instr);
193 			tp->ftt_bi = OP_BI(instr);
196 			tp->ftt_type = FASTTRAP_T_BCTR;
197 			tp->ftt_bo = OP_BO(instr);
198 			tp->ftt_bi = OP_BI(instr);
205 			tp->ftt_type = FASTTRAP_T_NOP;
220 	if (tp->ftt_type != FASTTRAP_T_RESTORE &&
223 		tp->ftt_flags |= FASTTRAP_F_RETMAYBE;
305 	fasttrap_tracepoint_t *tp;
311 	for (tp = bucket->ftb_data; tp != NULL; tp = tp->ftt_next) {
312 		if (pid == tp->ftt_pid && pc == tp->ftt_pc &&
313 		    tp->ftt_proc->ftpc_acount != 0)
322 	if (tp == NULL) {
326 	for (id = tp->ftt_retids; id != NULL; id = id->fti_next) {
372 	fasttrap_tracepoint_t *tp, tp_local;
406 	for (tp = bucket->ftb_data; tp != NULL; tp = tp->ftt_next) {
407 		if (pid == tp->ftt_pid && pc == tp->ftt_pc &&
408 		    tp->ftt_proc->ftpc_acount != 0)
417 	if (tp == NULL) {
422 	if (tp->ftt_ids != NULL) {
425 		for (id = tp->ftt_ids; id != NULL; id = id->fti_next) {
471 	tp_local = *tp;
473 	tp = &tp_local;
493 	switch (tp->ftt_type) {
498 		if (!fasttrap_branch_taken(tp->ftt_bo, tp->ftt_bi, rp))
502 		if (tp->ftt_instr & 0x01)
504 		new_pc = tp->ftt_dest;
508 		if (!fasttrap_branch_taken(tp->ftt_bo, tp->ftt_bi, rp))
511 		if (tp->ftt_type == FASTTRAP_T_BCTR)
515 		if (tp->ftt_instr & 0x01)
528 	if (tp->ftt_retids != NULL) {
536 		if (tp->ftt_type != FASTTRAP_T_COMMON) {