147 restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs)  in restore_sigcontext()  argument
150 	struct switch_stack *sw = (struct switch_stack *)regs - 1;  in restore_sigcontext()
151 	long i, err = __get_user(regs->pc, &sc->sc_pc);  in restore_sigcontext()
157 	err |= __get_user(regs->r0, sc->sc_regs+0);  in restore_sigcontext()
158 	err |= __get_user(regs->r1, sc->sc_regs+1);  in restore_sigcontext()
159 	err |= __get_user(regs->r2, sc->sc_regs+2);  in restore_sigcontext()
160 	err |= __get_user(regs->r3, sc->sc_regs+3);  in restore_sigcontext()
161 	err |= __get_user(regs->r4, sc->sc_regs+4);  in restore_sigcontext()
162 	err |= __get_user(regs->r5, sc->sc_regs+5);  in restore_sigcontext()
163 	err |= __get_user(regs->r6, sc->sc_regs+6);  in restore_sigcontext()
164 	err |= __get_user(regs->r7, sc->sc_regs+7);  in restore_sigcontext()
165 	err |= __get_user(regs->r8, sc->sc_regs+8);  in restore_sigcontext()
173 	err |= __get_user(regs->r16, sc->sc_regs+16);  in restore_sigcontext()
174 	err |= __get_user(regs->r17, sc->sc_regs+17);  in restore_sigcontext()
175 	err |= __get_user(regs->r18, sc->sc_regs+18);  in restore_sigcontext()
176 	err |= __get_user(regs->r19, sc->sc_regs+19);  in restore_sigcontext()
177 	err |= __get_user(regs->r20, sc->sc_regs+20);  in restore_sigcontext()
178 	err |= __get_user(regs->r21, sc->sc_regs+21);  in restore_sigcontext()
179 	err |= __get_user(regs->r22, sc->sc_regs+22);  in restore_sigcontext()
180 	err |= __get_user(regs->r23, sc->sc_regs+23);  in restore_sigcontext()
181 	err |= __get_user(regs->r24, sc->sc_regs+24);  in restore_sigcontext()
182 	err |= __get_user(regs->r25, sc->sc_regs+25);  in restore_sigcontext()
183 	err |= __get_user(regs->r26, sc->sc_regs+26);  in restore_sigcontext()
184 	err |= __get_user(regs->r27, sc->sc_regs+27);  in restore_sigcontext()
185 	err |= __get_user(regs->r28, sc->sc_regs+28);  in restore_sigcontext()
186 	err |= __get_user(regs->gp, sc->sc_regs+29);  in restore_sigcontext()
204 	struct pt_regs *regs = current_pt_regs();  in do_sigreturn()  local
215 	if (restore_sigcontext(sc, regs))  in do_sigreturn()
225 		info.si_addr = (void __user *) regs->pc;  in do_sigreturn()
238 	struct pt_regs *regs = current_pt_regs();  in do_rt_sigreturn()  local
249 	if (restore_sigcontext(&frame->uc.uc_mcontext, regs))  in do_rt_sigreturn()
259 		info.si_addr = (void __user *) regs->pc;  in do_rt_sigreturn()
281 setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,   in setup_sigcontext()  argument
284 	struct switch_stack *sw = (struct switch_stack *)regs - 1;  in setup_sigcontext()
289 	err |= __put_user(regs->pc, &sc->sc_pc);  in setup_sigcontext()
292 	err |= __put_user(regs->r0 , sc->sc_regs+0);  in setup_sigcontext()
293 	err |= __put_user(regs->r1 , sc->sc_regs+1);  in setup_sigcontext()
294 	err |= __put_user(regs->r2 , sc->sc_regs+2);  in setup_sigcontext()
295 	err |= __put_user(regs->r3 , sc->sc_regs+3);  in setup_sigcontext()
296 	err |= __put_user(regs->r4 , sc->sc_regs+4);  in setup_sigcontext()
297 	err |= __put_user(regs->r5 , sc->sc_regs+5);  in setup_sigcontext()
298 	err |= __put_user(regs->r6 , sc->sc_regs+6);  in setup_sigcontext()
299 	err |= __put_user(regs->r7 , sc->sc_regs+7);  in setup_sigcontext()
300 	err |= __put_user(regs->r8 , sc->sc_regs+8);  in setup_sigcontext()
308 	err |= __put_user(regs->r16, sc->sc_regs+16);  in setup_sigcontext()
309 	err |= __put_user(regs->r17, sc->sc_regs+17);  in setup_sigcontext()
310 	err |= __put_user(regs->r18, sc->sc_regs+18);  in setup_sigcontext()
311 	err |= __put_user(regs->r19, sc->sc_regs+19);  in setup_sigcontext()
312 	err |= __put_user(regs->r20, sc->sc_regs+20);  in setup_sigcontext()
313 	err |= __put_user(regs->r21, sc->sc_regs+21);  in setup_sigcontext()
314 	err |= __put_user(regs->r22, sc->sc_regs+22);  in setup_sigcontext()
315 	err |= __put_user(regs->r23, sc->sc_regs+23);  in setup_sigcontext()
316 	err |= __put_user(regs->r24, sc->sc_regs+24);  in setup_sigcontext()
317 	err |= __put_user(regs->r25, sc->sc_regs+25);  in setup_sigcontext()
318 	err |= __put_user(regs->r26, sc->sc_regs+26);  in setup_sigcontext()
319 	err |= __put_user(regs->r27, sc->sc_regs+27);  in setup_sigcontext()
320 	err |= __put_user(regs->r28, sc->sc_regs+28);  in setup_sigcontext()
321 	err |= __put_user(regs->gp , sc->sc_regs+29);  in setup_sigcontext()
330 	err |= __put_user(regs->trap_a0, &sc->sc_traparg_a0);  in setup_sigcontext()
331 	err |= __put_user(regs->trap_a1, &sc->sc_traparg_a1);  in setup_sigcontext()
332 	err |= __put_user(regs->trap_a2, &sc->sc_traparg_a2);  in setup_sigcontext()
338 setup_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)  in setup_frame()  argument
348 	err |= setup_sigcontext(&frame->sc, regs, set->sig[0], oldsp);  in setup_frame()
368 	regs->r26 = r26;  in setup_frame()
369 	regs->r27 = regs->pc = (unsigned long) ksig->ka.sa.sa_handler;  in setup_frame()
370 	regs->r16 = ksig->sig;			/* a0: signal number */  in setup_frame()
371 	regs->r17 = 0;				/* a1: exception code */  in setup_frame()
372 	regs->r18 = (unsigned long) &frame->sc;	/* a2: sigcontext pointer */  in setup_frame()
377 		current->comm, current->pid, frame, regs->pc, regs->r26);  in setup_frame()
383 setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)  in setup_rt_frame()  argument
400 	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs,   in setup_rt_frame()
422 	regs->r26 = r26;  in setup_rt_frame()
423 	regs->r27 = regs->pc = (unsigned long) ksig->ka.sa.sa_handler;  in setup_rt_frame()
424 	regs->r16 = ksig->sig;			  /* a0: signal number */  in setup_rt_frame()
425 	regs->r17 = (unsigned long) &frame->info; /* a1: siginfo pointer */  in setup_rt_frame()
426 	regs->r18 = (unsigned long) &frame->uc;	  /* a2: ucontext pointer */  in setup_rt_frame()
431 		current->comm, current->pid, frame, regs->pc, regs->r26);  in setup_rt_frame()
442 handle_signal(struct ksignal *ksig, struct pt_regs *regs)  in handle_signal()  argument
448 		ret = setup_rt_frame(ksig, oldset, regs);  in handle_signal()
450 		ret = setup_frame(ksig, oldset, regs);  in handle_signal()
457 		struct pt_regs *regs, struct k_sigaction *ka)  in syscall_restart()  argument
459 	switch (regs->r0) {  in syscall_restart()
463 			regs->r0 = EINTR;  in syscall_restart()
468 		regs->r0 = r0;	/* reset v0 and a3 and replay syscall */  in syscall_restart()
469 		regs->r19 = r19;  in syscall_restart()
470 		regs->pc -= 4;  in syscall_restart()
473 		regs->r0 = EINTR;  in syscall_restart()
493 do_signal(struct pt_regs *regs, unsigned long r0, unsigned long r19)  in do_signal()  argument
504 			syscall_restart(r0, r19, regs, &ksig.ka);  in do_signal()
505 		handle_signal(&ksig, regs);  in do_signal()
509 			switch (regs->r0) {  in do_signal()
514 				regs->r0 = r0;  in do_signal()
515 				regs->r19 = r19;  in do_signal()
516 				regs->pc -= 4;  in do_signal()
520 				regs->r0 = __NR_restart_syscall;  in do_signal()
521 				regs->pc -= 4;  in do_signal()
532 do_work_pending(struct pt_regs *regs, unsigned long thread_flags,  in do_work_pending()  argument
541 				do_signal(regs, r0, r19);  in do_work_pending()
545 				tracehook_notify_resume(regs);  in do_work_pending()