37 static int restore_sigcontext(struct pt_regs *regs,  in restore_sigcontext()  argument
43 #define COPY(x)  (err |= __get_user(regs->x, &sc->sc_##x))  in restore_sigcontext()
65 asmlinkage int do_rt_sigreturn(struct pt_regs *regs)  in do_rt_sigreturn()  argument
78 	if (regs->sp & 7)  in do_rt_sigreturn()
81 	frame = (struct rt_sigframe __user *) ((unsigned long) regs->sp + 8);  in do_rt_sigreturn()
90 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))  in do_rt_sigreturn()
93 	return regs->a4;  in do_rt_sigreturn()
100 static int setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,  in setup_sigcontext()  argument
108 #define COPY(x) (err |= __put_user(regs->x, &sc->sc_##x))  in setup_sigcontext()
131 					struct pt_regs *regs,  in get_sigframe()  argument
134 	unsigned long sp = sigsp(regs->sp, ksig);  in get_sigframe()
144 			  struct pt_regs *regs)  in setup_rt_frame()  argument
150 	frame = get_sigframe(ksig, regs, sizeof(*frame));  in setup_rt_frame()
162 	err |= setup_sigcontext(&frame->uc.uc_mcontext,	regs, set->sig[0]);  in setup_rt_frame()
193 	regs->sp = (unsigned long) frame - 8;  in setup_rt_frame()
194 	regs->b3 = (unsigned long) retcode;  in setup_rt_frame()
195 	regs->pc = (unsigned long) ksig->ka.sa.sa_handler;  in setup_rt_frame()
198 	regs->a4 = ksig->sig;  in setup_rt_frame()
205 	regs->b4 = (unsigned long)&frame->info;  in setup_rt_frame()
206 	regs->a6 = (unsigned long)&frame->uc;  in setup_rt_frame()
212 handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler)  in handle_restart()  argument
214 	switch (regs->a4) {  in handle_restart()
218 		regs->a4 = -EINTR;  in handle_restart()
223 			regs->a4 = -EINTR;  in handle_restart()
229 		regs->a4 = regs->orig_a4;  in handle_restart()
230 		regs->pc -= 4;  in handle_restart()
238 static void handle_signal(struct ksignal *ksig, struct pt_regs *regs,  in handle_signal()  argument
246 		switch (regs->a4) {  in handle_signal()
249 			regs->a4 = -EINTR;  in handle_signal()
254 				regs->a4 = -EINTR;  in handle_signal()
260 			regs->a4 = regs->orig_a4;  in handle_signal()
261 			regs->pc -= 4;  in handle_signal()
266 	ret = setup_rt_frame(ksig, sigmask_to_save(), regs);  in handle_signal()
273 static void do_signal(struct pt_regs *regs, int syscall)  in do_signal()  argument
279 	if (!user_mode(regs))  in do_signal()
283 		handle_signal(&ksig, regs, syscall);  in do_signal()
290 		switch (regs->a4) {  in do_signal()
294 			regs->a4 = regs->orig_a4;  in do_signal()
295 			regs->pc -= 4;  in do_signal()
299 			regs->a4 = regs->orig_a4;  in do_signal()
300 			regs->b0 = __NR_restart_syscall;  in do_signal()
301 			regs->pc -= 4;  in do_signal()
315 asmlinkage void do_notify_resume(struct pt_regs *regs, u32 thread_info_flags,  in do_notify_resume()  argument
320 		do_signal(regs, syscall);  in do_notify_resume()
324 		tracehook_notify_resume(regs);  in do_notify_resume()