32 restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)  in restore_sigcontext()  argument
36 #define COPY(x)		err |= __get_user(regs->x, &sc->x)  in restore_sigcontext()
60 	err |= !valid_user_regs(regs);  in restore_sigcontext()
66 asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)  in sys_rt_sigreturn()  argument
74 	frame = (struct rt_sigframe __user *)regs->sp;  in sys_rt_sigreturn()
85 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))  in sys_rt_sigreturn()
92 		 regs->pc, regs->lr, regs->sp);  in sys_rt_sigreturn()
94 	return regs->r12;  in sys_rt_sigreturn()
102 setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs)  in setup_sigcontext()  argument
106 #define COPY(x)		err |= __put_user(regs->x, &sc->x)  in setup_sigcontext()
130 get_sigframe(struct ksignal *ksig, struct pt_regs *regs, int framesize)  in get_sigframe()  argument
132 	unsigned long sp = sigsp(regs->sp, ksig);  in get_sigframe()
138 setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)  in setup_rt_frame()  argument
143 	frame = get_sigframe(ksig, regs, sizeof(*frame));  in setup_rt_frame()
168 	err |= __save_altstack(&frame->uc.uc_stack, regs->sp);  in setup_rt_frame()
169 	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs);  in setup_rt_frame()
175 	regs->r12 = ksig->sig;  in setup_rt_frame()
176 	regs->r11 = (unsigned long) &frame->info;  in setup_rt_frame()
177 	regs->r10 = (unsigned long) &frame->uc;  in setup_rt_frame()
178 	regs->sp = (unsigned long) frame;  in setup_rt_frame()
180 		regs->lr = (unsigned long)ksig->ka.sa.sa_restorer;  in setup_rt_frame()
184 		regs->lr = (unsigned long) &frame->retcode;  in setup_rt_frame()
188 		 current->comm, current->pid, ksig->sig, regs->sp,  in setup_rt_frame()
189 		 regs->pc, ksig->ka.sa.sa_handler, regs->lr);  in setup_rt_frame()
191 	regs->pc = (unsigned long)ksig->ka.sa.sa_handler;  in setup_rt_frame()
197 static inline void setup_syscall_restart(struct pt_regs *regs)  in setup_syscall_restart()  argument
199 	if (regs->r12 == -ERESTART_RESTARTBLOCK)  in setup_syscall_restart()
200 		regs->r8 = __NR_restart_syscall;  in setup_syscall_restart()
202 		regs->r12 = regs->r12_orig;  in setup_syscall_restart()
203 	regs->pc -= 2;  in setup_syscall_restart()
207 handle_signal(struct ksignal *ksig, struct pt_regs *regs, int syscall)  in handle_signal()  argument
214 	ret = setup_rt_frame(ksig, sigmask_to_save(), regs);  in handle_signal()
219 	ret |= !valid_user_regs(regs);  in handle_signal()
232 static void do_signal(struct pt_regs *regs, int syscall)  in do_signal()  argument
241 	if (!user_mode(regs))  in do_signal()
246 		switch (regs->r12) {  in do_signal()
250 				regs->r12 = -EINTR;  in do_signal()
256 				regs->r12 = -EINTR;  in do_signal()
261 			setup_syscall_restart(regs);  in do_signal()
271 	handle_signal(&ksig, regs, syscall);  in do_signal()
274 asmlinkage void do_notify_resume(struct pt_regs *regs, struct thread_info *ti)  in do_notify_resume()  argument
282 		do_signal(regs, syscall);  in do_notify_resume()
286 		tracehook_notify_resume(regs);  in do_notify_resume()