86 #define USERMODE_P(tf)   ((((tf)->tf_psl) & (PSL_U)) == PSL_U)  argument
89 trap(struct trapframe *tf)  in trap()  argument
91 	u_int	sig = 0, type = tf->tf_trap, code = 0;  in trap()
94 	const bool usermode = USERMODE_P(tf);  in trap()
109 		l->l_md.md_utf = tf;  in trap()
116 if(tf->tf_trap==7) goto fram;  in trap()
118 		tf->tf_trap, tf->tf_code, tf->tf_pc, tf->tf_psl);  in trap()
125 		kdb_trap(tf);  in trap()
128 		    (u_int)tf->tf_trap, (u_int)tf->tf_code,  in trap()
129 		    (u_int)tf->tf_pc, (u_int)tf->tf_psl);  in trap()
134 		    mfpr(PR_KSP), (u_int)tf->tf_pc, pcb,  in trap()
135 		    (u_int)tf->tf_fp, (u_int)tf->tf_psl);  in trap()
155 		if (tf->tf_code < 0) { /* Check for kernel space */  in trap()
171 			if (tf->tf_code == CASMAGIC  in trap()
172 			    && tf->tf_pc >= (uintptr_t) cas32_ras_start  in trap()
173 			    && tf->tf_pc < (uintptr_t) cas32_ras_end) {  in trap()
174 				tf->tf_pc = (uintptr_t) cas32_ras_start;  in trap()
184 			tf->tf_trap, tf->tf_code, tf->tf_pc, tf->tf_psl);  in trap()
189 			    tf->tf_pc, tf->tf_code);  in trap()
190 		if (tf->tf_psl & PSL_IS)  in trap()
201 		addr = trunc_page(tf->tf_code);  in trap()
202 		if (!usermode && (tf->tf_code < 0)) {  in trap()
211 		if (tf->tf_trap & T_WRITE)  in trap()
223 					tf->tf_pc = (unsigned)onfault;  in trap()
224 					tf->tf_psl &= ~PSL_FPD;  in trap()
225 					tf->tf_r0 = rv;  in trap()
229 				    tf->tf_r0, tf->tf_r1, tf->tf_r2, tf->tf_r3);  in trap()
231 				    tf->tf_r4, tf->tf_r5, tf->tf_r6, tf->tf_r7);  in trap()
234 				    tf->tf_r8, tf->tf_r9, tf->tf_r10,  in trap()
235 				    tf->tf_r11);  in trap()
237 				    tf->tf_ap, tf->tf_fp, tf->tf_sp, tf->tf_pc);  in trap()
239 				    tf->tf_pc, tf->tf_code);  in trap()
279 		tf->tf_psl &= ~PSL_T;  in trap()
301 		switch (tf->tf_code) {  in trap()
327 		kdb_trap(tf);  in trap()
338 			       p->p_pid, l->l_lid, p->p_comm, sig, tf->tf_trap,  in trap()
339 			       tf->tf_code, tf->tf_pc, tf->tf_psl);  in trap()
342 		ksi.ksi_trap = tf->tf_trap;  in trap()
343 		ksi.ksi_addr = (void *)tf->tf_code;  in trap()
357 		if (type == (T_ARITHFLT | T_USER) && (tf->tf_code & 8))  in trap()
358 			tf->tf_pc = skip_opcode(tf->tf_pc);  in trap()
366 	userret(l, tf, oticks);  in trap()
372 	struct trapframe * const tf = l->l_md.md_utf;  in setregs()  local
374 	tf->tf_pc = pack->ep_entry + 2;  in setregs()
375 	tf->tf_sp = stack;  in setregs()
376 	tf->tf_r6 = stack;				/* for ELF */  in setregs()
377 	tf->tf_r7 = 0;				/* for ELF */  in setregs()
378 	tf->tf_r8 = 0;				/* for ELF */  in setregs()
379 	tf->tf_r9 = l->l_proc->p_psstrp;		/* for ELF */  in setregs()