219  * Set up a signal frame.
315 	struct sigframe __user *frame;  in __setup_frame()  local
320 	frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fpstate);  in __setup_frame()
322 	if (!access_ok(frame, sizeof(*frame)))  in __setup_frame()
325 	if (__put_user(sig, &frame->sig))  in __setup_frame()
328 	if (setup_sigcontext(&frame->sc, fpstate, regs, set->sig[0]))  in __setup_frame()
332 		if (__copy_to_user(&frame->extramask, &set->sig[1],  in __setup_frame()
333 				   sizeof(frame->extramask)))  in __setup_frame()
341 		restorer = &frame->retcode;  in __setup_frame()
346 	err |= __put_user(restorer, &frame->pretcode);  in __setup_frame()
355 	err |= __put_user(*((u64 *)&retcode), (u64 *)frame->retcode);  in __setup_frame()
361 	regs->sp = (unsigned long)frame;  in __setup_frame()
378 	struct rt_sigframe __user *frame;  in __setup_rt_frame()  local
383 	frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fpstate);  in __setup_rt_frame()
385 	if (!access_ok(frame, sizeof(*frame)))  in __setup_rt_frame()
389 		put_user_ex(sig, &frame->sig);  in __setup_rt_frame()
390 		put_user_ex(&frame->info, &frame->pinfo);  in __setup_rt_frame()
391 		put_user_ex(&frame->uc, &frame->puc);  in __setup_rt_frame()
395 			put_user_ex(UC_FP_XSTATE, &frame->uc.uc_flags);  in __setup_rt_frame()
397 			put_user_ex(0, &frame->uc.uc_flags);  in __setup_rt_frame()
398 		put_user_ex(0, &frame->uc.uc_link);  in __setup_rt_frame()
399 		save_altstack_ex(&frame->uc.uc_stack, regs->sp);  in __setup_rt_frame()
406 		put_user_ex(restorer, &frame->pretcode);  in __setup_rt_frame()
415 		put_user_ex(*((u64 *)&rt_retcode), (u64 *)frame->retcode);  in __setup_rt_frame()
418 	err |= copy_siginfo_to_user(&frame->info, &ksig->info);  in __setup_rt_frame()
419 	err |= setup_sigcontext(&frame->uc.uc_mcontext, fpstate,  in __setup_rt_frame()
421 	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));  in __setup_rt_frame()
427 	regs->sp = (unsigned long)frame;  in __setup_rt_frame()
430 	regs->dx = (unsigned long)&frame->info;  in __setup_rt_frame()
431 	regs->cx = (unsigned long)&frame->uc;  in __setup_rt_frame()
459 	struct rt_sigframe __user *frame;  in __setup_rt_frame()  local
464 	frame = get_sigframe(&ksig->ka, regs, sizeof(struct rt_sigframe), &fp);  in __setup_rt_frame()
466 	if (!access_ok(frame, sizeof(*frame)))  in __setup_rt_frame()
470 		if (copy_siginfo_to_user(&frame->info, &ksig->info))  in __setup_rt_frame()
478 		put_user_ex(uc_flags, &frame->uc.uc_flags);  in __setup_rt_frame()
479 		put_user_ex(0, &frame->uc.uc_link);  in __setup_rt_frame()
480 		save_altstack_ex(&frame->uc.uc_stack, regs->sp);  in __setup_rt_frame()
486 			put_user_ex(ksig->ka.sa.sa_restorer, &frame->pretcode);  in __setup_rt_frame()
493 	err |= setup_sigcontext(&frame->uc.uc_mcontext, fp, regs, set->sig[0]);  in __setup_rt_frame()
494 	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));  in __setup_rt_frame()
506 	regs->si = (unsigned long)&frame->info;  in __setup_rt_frame()
507 	regs->dx = (unsigned long)&frame->uc;  in __setup_rt_frame()
510 	regs->sp = (unsigned long)frame;  in __setup_rt_frame()
543 	struct rt_sigframe_x32 __user *frame;  in x32_setup_rt_frame()  local
549 	frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fpstate);  in x32_setup_rt_frame()
551 	if (!access_ok(frame, sizeof(*frame)))  in x32_setup_rt_frame()
555 		if (__copy_siginfo_to_user32(&frame->info, &ksig->info, true))  in x32_setup_rt_frame()
563 		put_user_ex(uc_flags, &frame->uc.uc_flags);  in x32_setup_rt_frame()
564 		put_user_ex(0, &frame->uc.uc_link);  in x32_setup_rt_frame()
565 		compat_save_altstack_ex(&frame->uc.uc_stack, regs->sp);  in x32_setup_rt_frame()
566 		put_user_ex(0, &frame->uc.uc__pad0);  in x32_setup_rt_frame()
575 		put_user_ex(restorer, (unsigned long __user *)&frame->pretcode);  in x32_setup_rt_frame()
578 	err |= setup_sigcontext(&frame->uc.uc_mcontext, fpstate,  in x32_setup_rt_frame()
580 	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));  in x32_setup_rt_frame()
586 	regs->sp = (unsigned long) frame;  in x32_setup_rt_frame()
591 	regs->si = (unsigned long) &frame->info;  in x32_setup_rt_frame()
592 	regs->dx = (unsigned long) &frame->uc;  in x32_setup_rt_frame()
611 	struct sigframe __user *frame;  in SYSCALL_DEFINE0()  local
614 	frame = (struct sigframe __user *)(regs->sp - 8);  in SYSCALL_DEFINE0()
616 	if (!access_ok(frame, sizeof(*frame)))  in SYSCALL_DEFINE0()
618 	if (__get_user(set.sig[0], &frame->sc.oldmask) || (_NSIG_WORDS > 1  in SYSCALL_DEFINE0()
619 		&& __copy_from_user(&set.sig[1], &frame->extramask,  in SYSCALL_DEFINE0()
620 				    sizeof(frame->extramask))))  in SYSCALL_DEFINE0()
629 	if (restore_sigcontext(regs, &frame->sc, 0))  in SYSCALL_DEFINE0()
634 	signal_fault(regs, frame, "sigreturn");  in SYSCALL_DEFINE0()
643 	struct rt_sigframe __user *frame;  in SYSCALL_DEFINE0()  local
647 	frame = (struct rt_sigframe __user *)(regs->sp - sizeof(long));  in SYSCALL_DEFINE0()
648 	if (!access_ok(frame, sizeof(*frame)))  in SYSCALL_DEFINE0()
650 	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))  in SYSCALL_DEFINE0()
652 	if (__get_user(uc_flags, &frame->uc.uc_flags))  in SYSCALL_DEFINE0()
657 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, uc_flags))  in SYSCALL_DEFINE0()
660 	if (restore_altstack(&frame->uc.uc_stack))  in SYSCALL_DEFINE0()
666 	signal_fault(regs, frame, "rt_sigreturn");  in SYSCALL_DEFINE0()
694 	/* Perform fixup for the pre-signal frame. */  in setup_rt_frame()
697 	/* Set up the stack frame */  in setup_rt_frame()
846 void signal_fault(struct pt_regs *regs, void __user *frame, char *where)  in signal_fault()  argument
852 		       "%s[%d] bad frame in %s frame:%p ip:%lx sp:%lx orax:%lx",  in signal_fault()
854 		       me->comm, me->pid, where, frame,  in signal_fault()
867 	struct rt_sigframe_x32 __user *frame;  in sys32_x32_rt_sigreturn()  local
871 	frame = (struct rt_sigframe_x32 __user *)(regs->sp - 8);  in sys32_x32_rt_sigreturn()
873 	if (!access_ok(frame, sizeof(*frame)))  in sys32_x32_rt_sigreturn()
875 	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))  in sys32_x32_rt_sigreturn()
877 	if (__get_user(uc_flags, &frame->uc.uc_flags))  in sys32_x32_rt_sigreturn()
882 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, uc_flags))  in sys32_x32_rt_sigreturn()
885 	if (compat_restore_altstack(&frame->uc.uc_stack))  in sys32_x32_rt_sigreturn()
891 	signal_fault(regs, frame, "x32 rt_sigreturn");  in sys32_x32_rt_sigreturn()