206 #define unsafe_put_sigmask(set, frame, label) \  argument
208 			(__u64 __user *)&(frame)->uc.uc_sigmask, \
212  * Set up a signal frame.
308 	struct sigframe __user *frame;  in __setup_frame()  local
312 	frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fp);  in __setup_frame()
314 	if (!user_access_begin(frame, sizeof(*frame)))  in __setup_frame()
317 	unsafe_put_user(sig, &frame->sig, Efault);  in __setup_frame()
318 	unsafe_put_sigcontext(&frame->sc, fp, regs, set, Efault);  in __setup_frame()
319 	unsafe_put_user(set->sig[1], &frame->extramask[0], Efault);  in __setup_frame()
324 		restorer = &frame->retcode;  in __setup_frame()
329 	unsafe_put_user(restorer, &frame->pretcode, Efault);  in __setup_frame()
338 	unsafe_put_user(*((u64 *)&retcode), (u64 *)frame->retcode, Efault);  in __setup_frame()
342 	regs->sp = (unsigned long)frame;  in __setup_frame()
363 	struct rt_sigframe __user *frame;  in __setup_rt_frame()  local
367 	frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fp);  in __setup_rt_frame()
369 	if (!user_access_begin(frame, sizeof(*frame)))  in __setup_rt_frame()
372 	unsafe_put_user(sig, &frame->sig, Efault);  in __setup_rt_frame()
373 	unsafe_put_user(&frame->info, &frame->pinfo, Efault);  in __setup_rt_frame()
374 	unsafe_put_user(&frame->uc, &frame->puc, Efault);  in __setup_rt_frame()
378 		unsafe_put_user(UC_FP_XSTATE, &frame->uc.uc_flags, Efault);  in __setup_rt_frame()
380 		unsafe_put_user(0, &frame->uc.uc_flags, Efault);  in __setup_rt_frame()
381 	unsafe_put_user(0, &frame->uc.uc_link, Efault);  in __setup_rt_frame()
382 	unsafe_save_altstack(&frame->uc.uc_stack, regs->sp, Efault);  in __setup_rt_frame()
389 	unsafe_put_user(restorer, &frame->pretcode, Efault);  in __setup_rt_frame()
398 	unsafe_put_user(*((u64 *)&rt_retcode), (u64 *)frame->retcode, Efault);  in __setup_rt_frame()
399 	unsafe_put_sigcontext(&frame->uc.uc_mcontext, fp, regs, set, Efault);  in __setup_rt_frame()
400 	unsafe_put_sigmask(set, frame, Efault);  in __setup_rt_frame()
403 	if (copy_siginfo_to_user(&frame->info, &ksig->info))  in __setup_rt_frame()
407 	regs->sp = (unsigned long)frame;  in __setup_rt_frame()
410 	regs->dx = (unsigned long)&frame->info;  in __setup_rt_frame()
411 	regs->cx = (unsigned long)&frame->uc;  in __setup_rt_frame()
442 	struct rt_sigframe __user *frame;  in __setup_rt_frame()  local
450 	frame = get_sigframe(&ksig->ka, regs, sizeof(struct rt_sigframe), &fp);  in __setup_rt_frame()
453 	if (!user_access_begin(frame, sizeof(*frame)))  in __setup_rt_frame()
457 	unsafe_put_user(uc_flags, &frame->uc.uc_flags, Efault);  in __setup_rt_frame()
458 	unsafe_put_user(0, &frame->uc.uc_link, Efault);  in __setup_rt_frame()
459 	unsafe_save_altstack(&frame->uc.uc_stack, regs->sp, Efault);  in __setup_rt_frame()
463 	unsafe_put_user(ksig->ka.sa.sa_restorer, &frame->pretcode, Efault);  in __setup_rt_frame()
464 	unsafe_put_sigcontext(&frame->uc.uc_mcontext, fp, regs, set, Efault);  in __setup_rt_frame()
465 	unsafe_put_sigmask(set, frame, Efault);  in __setup_rt_frame()
469 		if (copy_siginfo_to_user(&frame->info, &ksig->info))  in __setup_rt_frame()
480 	regs->si = (unsigned long)&frame->info;  in __setup_rt_frame()
481 	regs->dx = (unsigned long)&frame->uc;  in __setup_rt_frame()
484 	regs->sp = (unsigned long)frame;  in __setup_rt_frame()
546 	struct rt_sigframe_x32 __user *frame;  in x32_setup_rt_frame()  local
554 	frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fp);  in x32_setup_rt_frame()
558 	if (!user_access_begin(frame, sizeof(*frame)))  in x32_setup_rt_frame()
562 	unsafe_put_user(uc_flags, &frame->uc.uc_flags, Efault);  in x32_setup_rt_frame()
563 	unsafe_put_user(0, &frame->uc.uc_link, Efault);  in x32_setup_rt_frame()
564 	unsafe_compat_save_altstack(&frame->uc.uc_stack, regs->sp, Efault);  in x32_setup_rt_frame()
565 	unsafe_put_user(0, &frame->uc.uc__pad0, Efault);  in x32_setup_rt_frame()
567 	unsafe_put_user(restorer, (unsigned long __user *)&frame->pretcode, Efault);  in x32_setup_rt_frame()
568 	unsafe_put_sigcontext(&frame->uc.uc_mcontext, fp, regs, set, Efault);  in x32_setup_rt_frame()
569 	unsafe_put_sigmask(set, frame, Efault);  in x32_setup_rt_frame()
573 		if (x32_copy_siginfo_to_user(&frame->info, &ksig->info))  in x32_setup_rt_frame()
578 	regs->sp = (unsigned long) frame;  in x32_setup_rt_frame()
583 	regs->si = (unsigned long) &frame->info;  in x32_setup_rt_frame()
584 	regs->dx = (unsigned long) &frame->uc;  in x32_setup_rt_frame()
608 	struct sigframe __user *frame;  in SYSCALL_DEFINE0()  local
611 	frame = (struct sigframe __user *)(regs->sp - 8);  in SYSCALL_DEFINE0()
613 	if (!access_ok(frame, sizeof(*frame)))  in SYSCALL_DEFINE0()
615 	if (__get_user(set.sig[0], &frame->sc.oldmask) ||  in SYSCALL_DEFINE0()
616 	    __get_user(set.sig[1], &frame->extramask[0]))  in SYSCALL_DEFINE0()
625 	if (restore_sigcontext(regs, &frame->sc, 0))  in SYSCALL_DEFINE0()
630 	signal_fault(regs, frame, "sigreturn");  in SYSCALL_DEFINE0()
639 	struct rt_sigframe __user *frame;  in SYSCALL_DEFINE0()  local
643 	frame = (struct rt_sigframe __user *)(regs->sp - sizeof(long));  in SYSCALL_DEFINE0()
644 	if (!access_ok(frame, sizeof(*frame)))  in SYSCALL_DEFINE0()
646 	if (__get_user(*(__u64 *)&set, (__u64 __user *)&frame->uc.uc_sigmask))  in SYSCALL_DEFINE0()
648 	if (__get_user(uc_flags, &frame->uc.uc_flags))  in SYSCALL_DEFINE0()
653 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, uc_flags))  in SYSCALL_DEFINE0()
656 	if (restore_altstack(&frame->uc.uc_stack))  in SYSCALL_DEFINE0()
662 	signal_fault(regs, frame, "rt_sigreturn");  in SYSCALL_DEFINE0()
690 	/* Perform fixup for the pre-signal frame. */  in setup_rt_frame()
693 	/* Set up the stack frame */  in setup_rt_frame()
842 void signal_fault(struct pt_regs *regs, void __user *frame, char *where)  in signal_fault()  argument
848 		       "%s[%d] bad frame in %s frame:%p ip:%lx sp:%lx orax:%lx",  in signal_fault()
850 		       me->comm, me->pid, where, frame,  in signal_fault()
863 	struct rt_sigframe_x32 __user *frame;  in COMPAT_SYSCALL_DEFINE0()  local
867 	frame = (struct rt_sigframe_x32 __user *)(regs->sp - 8);  in COMPAT_SYSCALL_DEFINE0()
869 	if (!access_ok(frame, sizeof(*frame)))  in COMPAT_SYSCALL_DEFINE0()
871 	if (__get_user(set.sig[0], (__u64 __user *)&frame->uc.uc_sigmask))  in COMPAT_SYSCALL_DEFINE0()
873 	if (__get_user(uc_flags, &frame->uc.uc_flags))  in COMPAT_SYSCALL_DEFINE0()
878 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, uc_flags))  in COMPAT_SYSCALL_DEFINE0()
881 	if (compat_restore_altstack(&frame->uc.uc_stack))  in COMPAT_SYSCALL_DEFINE0()
887 	signal_fault(regs, frame, "x32 rt_sigreturn");  in COMPAT_SYSCALL_DEFINE0()