50 	struct pt_regs		regs;  member
63 asmlinkage void do_sigreturn(struct pt_regs *regs)  in do_sigreturn()  argument
77 	sf = (struct signal_frame __user *) regs->u_regs[UREG_FP];  in do_sigreturn()
93 	up_psr = regs->psr;  in do_sigreturn()
94 	err |= __copy_from_user(regs, &sf->info.si_regs, sizeof(struct pt_regs));  in do_sigreturn()
97 	regs->psr = (up_psr & ~(PSR_ICC | PSR_EF))  in do_sigreturn()
98 		  | (regs->psr & (PSR_ICC | PSR_EF));  in do_sigreturn()
101 	pt_regs_clear_syscall(regs);  in do_sigreturn()
105 		err |= restore_fpu_state(regs, fpu_save);  in do_sigreturn()
127 asmlinkage void do_rt_sigreturn(struct pt_regs *regs)  in do_rt_sigreturn()  argument
137 	sf = (struct rt_signal_frame __user *) regs->u_regs[UREG_FP];  in do_rt_sigreturn()
142 	err = __get_user(pc, &sf->regs.pc);  in do_rt_sigreturn()
143 	err |= __get_user(npc, &sf->regs.npc);  in do_rt_sigreturn()
146 	err |= __get_user(regs->y, &sf->regs.y);  in do_rt_sigreturn()
147 	err |= __get_user(psr, &sf->regs.psr);  in do_rt_sigreturn()
149 	err |= __copy_from_user(&regs->u_regs[UREG_G1],  in do_rt_sigreturn()
150 				&sf->regs.u_regs[UREG_G1], 15 * sizeof(u32));  in do_rt_sigreturn()
152 	regs->psr = (regs->psr & ~PSR_ICC) | (psr & PSR_ICC);  in do_rt_sigreturn()
155 	pt_regs_clear_syscall(regs);  in do_rt_sigreturn()
159 		err |= restore_fpu_state(regs, fpu_save);  in do_rt_sigreturn()
166 	regs->pc = pc;  in do_rt_sigreturn()
167 	regs->npc = npc;  in do_rt_sigreturn()
190 static inline void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, unsigned long f…  in get_sigframe()  argument
192 	unsigned long sp = regs->u_regs[UREG_FP];  in get_sigframe()
215 static int setup_frame(struct ksignal *ksig, struct pt_regs *regs,  in setup_frame()  argument
234 		get_sigframe(ksig, regs, sigframe_size);  in setup_frame()
244 	err = __copy_to_user(&sf->info.si_regs, regs, sizeof(struct pt_regs));  in setup_frame()
251 		err |= save_fpu_state(regs, fp);  in setup_frame()
269 		err |= __copy_to_user(sf, (char *) regs->u_regs[UREG_FP],  in setup_frame()
281 	regs->u_regs[UREG_FP] = (unsigned long) sf;  in setup_frame()
282 	regs->u_regs[UREG_I0] = ksig->sig;  in setup_frame()
283 	regs->u_regs[UREG_I1] = (unsigned long) &sf->info;  in setup_frame()
284 	regs->u_regs[UREG_I2] = (unsigned long) &sf->info;  in setup_frame()
287 	regs->pc = (unsigned long) ksig->ka.sa.sa_handler;  in setup_frame()
288 	regs->npc = (regs->pc + 4);  in setup_frame()
292 		regs->u_regs[UREG_I7] = (unsigned long)ksig->ka.ka_restorer;  in setup_frame()
294 		regs->u_regs[UREG_I7] = (unsigned long)(&(sf->insns[0]) - 2);  in setup_frame()
310 static int setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs,  in setup_rt_frame()  argument
327 		get_sigframe(ksig, regs, sigframe_size);  in setup_rt_frame()
334 	err  = __put_user(regs->pc, &sf->regs.pc);  in setup_rt_frame()
335 	err |= __put_user(regs->npc, &sf->regs.npc);  in setup_rt_frame()
336 	err |= __put_user(regs->y, &sf->regs.y);  in setup_rt_frame()
337 	psr = regs->psr;  in setup_rt_frame()
340 	err |= __put_user(psr, &sf->regs.psr);  in setup_rt_frame()
341 	err |= __copy_to_user(&sf->regs.u_regs, regs->u_regs, sizeof(regs->u_regs));  in setup_rt_frame()
347 		err |= save_fpu_state(regs, fp);  in setup_rt_frame()
363 	err |= __save_altstack(&sf->stack, regs->u_regs[UREG_FP]);  in setup_rt_frame()
366 		err |= __copy_to_user(sf, (char *) regs->u_regs[UREG_FP],  in setup_rt_frame()
380 	regs->u_regs[UREG_FP] = (unsigned long) sf;  in setup_rt_frame()
381 	regs->u_regs[UREG_I0] = ksig->sig;  in setup_rt_frame()
382 	regs->u_regs[UREG_I1] = (unsigned long) &sf->info;  in setup_rt_frame()
383 	regs->u_regs[UREG_I2] = (unsigned long) &sf->regs;  in setup_rt_frame()
385 	regs->pc = (unsigned long) ksig->ka.sa.sa_handler;  in setup_rt_frame()
386 	regs->npc = (regs->pc + 4);  in setup_rt_frame()
389 		regs->u_regs[UREG_I7] = (unsigned long)ksig->ka.ka_restorer;  in setup_rt_frame()
391 		regs->u_regs[UREG_I7] = (unsigned long)(&(sf->insns[0]) - 2);  in setup_rt_frame()
408 handle_signal(struct ksignal *ksig, struct pt_regs *regs)  in handle_signal()  argument
414 		err = setup_rt_frame(ksig, regs, oldset);  in handle_signal()
416 		err = setup_frame(ksig, regs, oldset);  in handle_signal()
420 static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,  in syscall_restart()  argument
423 	switch(regs->u_regs[UREG_I0]) {  in syscall_restart()
427 		regs->u_regs[UREG_I0] = EINTR;  in syscall_restart()
428 		regs->psr |= PSR_C;  in syscall_restart()
435 		regs->u_regs[UREG_I0] = orig_i0;  in syscall_restart()
436 		regs->pc -= 4;  in syscall_restart()
437 		regs->npc -= 4;  in syscall_restart()
445 static void do_signal(struct pt_regs *regs, unsigned long orig_i0)  in do_signal()  argument
469 	if (pt_regs_is_syscall(regs) && (regs->psr & PSR_C))  in do_signal()
470 		regs->u_regs[UREG_G6] = orig_i0;  in do_signal()
479 	if (pt_regs_is_syscall(regs) && (regs->psr & PSR_C)) {  in do_signal()
481 		orig_i0 = regs->u_regs[UREG_G6];  in do_signal()
486 			syscall_restart(orig_i0, regs, &ksig.ka.sa);  in do_signal()
487 		handle_signal(&ksig, regs);  in do_signal()
490 			switch (regs->u_regs[UREG_I0]) {  in do_signal()
495 				regs->u_regs[UREG_I0] = orig_i0;  in do_signal()
496 				regs->pc -= 4;  in do_signal()
497 				regs->npc -= 4;  in do_signal()
498 				pt_regs_clear_syscall(regs);  in do_signal()
500 				regs->u_regs[UREG_G1] = __NR_restart_syscall;  in do_signal()
501 				regs->pc -= 4;  in do_signal()
502 				regs->npc -= 4;  in do_signal()
503 				pt_regs_clear_syscall(regs);  in do_signal()
510 void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0,  in do_notify_resume()  argument
514 		do_signal(regs, orig_i0);  in do_notify_resume()
517 		tracehook_notify_resume(regs);  in do_notify_resume()