209 #define unsafe_put_sigmask(set, frame, label) \  argument
211 			(__u64 __user *)&(frame)->uc.uc_sigmask, \
215  * Set up a signal frame.
330 	struct sigframe __user *frame;  in __setup_frame()  local
334 	frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fp);  in __setup_frame()
336 	if (!user_access_begin(frame, sizeof(*frame)))  in __setup_frame()
339 	unsafe_put_user(sig, &frame->sig, Efault);  in __setup_frame()
340 	unsafe_put_sigcontext(&frame->sc, fp, regs, set, Efault);  in __setup_frame()
341 	unsafe_put_user(set->sig[1], &frame->extramask[0], Efault);  in __setup_frame()
346 		restorer = &frame->retcode;  in __setup_frame()
351 	unsafe_put_user(restorer, &frame->pretcode, Efault);  in __setup_frame()
360 	unsafe_put_user(*((u64 *)&retcode), (u64 *)frame->retcode, Efault);  in __setup_frame()
364 	regs->sp = (unsigned long)frame;  in __setup_frame()
385 	struct rt_sigframe __user *frame;  in __setup_rt_frame()  local
389 	frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fp);  in __setup_rt_frame()
391 	if (!user_access_begin(frame, sizeof(*frame)))  in __setup_rt_frame()
394 	unsafe_put_user(sig, &frame->sig, Efault);  in __setup_rt_frame()
395 	unsafe_put_user(&frame->info, &frame->pinfo, Efault);  in __setup_rt_frame()
396 	unsafe_put_user(&frame->uc, &frame->puc, Efault);  in __setup_rt_frame()
400 		unsafe_put_user(UC_FP_XSTATE, &frame->uc.uc_flags, Efault);  in __setup_rt_frame()
402 		unsafe_put_user(0, &frame->uc.uc_flags, Efault);  in __setup_rt_frame()
403 	unsafe_put_user(0, &frame->uc.uc_link, Efault);  in __setup_rt_frame()
404 	unsafe_save_altstack(&frame->uc.uc_stack, regs->sp, Efault);  in __setup_rt_frame()
411 	unsafe_put_user(restorer, &frame->pretcode, Efault);  in __setup_rt_frame()
420 	unsafe_put_user(*((u64 *)&rt_retcode), (u64 *)frame->retcode, Efault);  in __setup_rt_frame()
421 	unsafe_put_sigcontext(&frame->uc.uc_mcontext, fp, regs, set, Efault);  in __setup_rt_frame()
422 	unsafe_put_sigmask(set, frame, Efault);  in __setup_rt_frame()
425 	if (copy_siginfo_to_user(&frame->info, &ksig->info))  in __setup_rt_frame()
429 	regs->sp = (unsigned long)frame;  in __setup_rt_frame()
432 	regs->dx = (unsigned long)&frame->info;  in __setup_rt_frame()
433 	regs->cx = (unsigned long)&frame->uc;  in __setup_rt_frame()
464 	struct rt_sigframe __user *frame;  in __setup_rt_frame()  local
472 	frame = get_sigframe(&ksig->ka, regs, sizeof(struct rt_sigframe), &fp);  in __setup_rt_frame()
475 	if (!user_access_begin(frame, sizeof(*frame)))  in __setup_rt_frame()
479 	unsafe_put_user(uc_flags, &frame->uc.uc_flags, Efault);  in __setup_rt_frame()
480 	unsafe_put_user(0, &frame->uc.uc_link, Efault);  in __setup_rt_frame()
481 	unsafe_save_altstack(&frame->uc.uc_stack, regs->sp, Efault);  in __setup_rt_frame()
485 	unsafe_put_user(ksig->ka.sa.sa_restorer, &frame->pretcode, Efault);  in __setup_rt_frame()
486 	unsafe_put_sigcontext(&frame->uc.uc_mcontext, fp, regs, set, Efault);  in __setup_rt_frame()
487 	unsafe_put_sigmask(set, frame, Efault);  in __setup_rt_frame()
491 		if (copy_siginfo_to_user(&frame->info, &ksig->info))  in __setup_rt_frame()
502 	regs->si = (unsigned long)&frame->info;  in __setup_rt_frame()
503 	regs->dx = (unsigned long)&frame->uc;  in __setup_rt_frame()
506 	regs->sp = (unsigned long)frame;  in __setup_rt_frame()
568 	struct rt_sigframe_x32 __user *frame;  in x32_setup_rt_frame()  local
576 	frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fp);  in x32_setup_rt_frame()
580 	if (!user_access_begin(frame, sizeof(*frame)))  in x32_setup_rt_frame()
584 	unsafe_put_user(uc_flags, &frame->uc.uc_flags, Efault);  in x32_setup_rt_frame()
585 	unsafe_put_user(0, &frame->uc.uc_link, Efault);  in x32_setup_rt_frame()
586 	unsafe_compat_save_altstack(&frame->uc.uc_stack, regs->sp, Efault);  in x32_setup_rt_frame()
587 	unsafe_put_user(0, &frame->uc.uc__pad0, Efault);  in x32_setup_rt_frame()
589 	unsafe_put_user(restorer, (unsigned long __user *)&frame->pretcode, Efault);  in x32_setup_rt_frame()
590 	unsafe_put_sigcontext(&frame->uc.uc_mcontext, fp, regs, set, Efault);  in x32_setup_rt_frame()
591 	unsafe_put_sigmask(set, frame, Efault);  in x32_setup_rt_frame()
595 		if (x32_copy_siginfo_to_user(&frame->info, &ksig->info))  in x32_setup_rt_frame()
600 	regs->sp = (unsigned long) frame;  in x32_setup_rt_frame()
605 	regs->si = (unsigned long) &frame->info;  in x32_setup_rt_frame()
606 	regs->dx = (unsigned long) &frame->uc;  in x32_setup_rt_frame()
630 	struct sigframe __user *frame;  in SYSCALL_DEFINE0()  local
633 	frame = (struct sigframe __user *)(regs->sp - 8);  in SYSCALL_DEFINE0()
635 	if (!access_ok(frame, sizeof(*frame)))  in SYSCALL_DEFINE0()
637 	if (__get_user(set.sig[0], &frame->sc.oldmask) ||  in SYSCALL_DEFINE0()
638 	    __get_user(set.sig[1], &frame->extramask[0]))  in SYSCALL_DEFINE0()
647 	if (!restore_sigcontext(regs, &frame->sc, 0))  in SYSCALL_DEFINE0()
652 	signal_fault(regs, frame, "sigreturn");  in SYSCALL_DEFINE0()
661 	struct rt_sigframe __user *frame;  in SYSCALL_DEFINE0()  local
665 	frame = (struct rt_sigframe __user *)(regs->sp - sizeof(long));  in SYSCALL_DEFINE0()
666 	if (!access_ok(frame, sizeof(*frame)))  in SYSCALL_DEFINE0()
668 	if (__get_user(*(__u64 *)&set, (__u64 __user *)&frame->uc.uc_sigmask))  in SYSCALL_DEFINE0()
670 	if (__get_user(uc_flags, &frame->uc.uc_flags))  in SYSCALL_DEFINE0()
675 	if (!restore_sigcontext(regs, &frame->uc.uc_mcontext, uc_flags))  in SYSCALL_DEFINE0()
678 	if (restore_altstack(&frame->uc.uc_stack))  in SYSCALL_DEFINE0()
684 	signal_fault(regs, frame, "rt_sigreturn");  in SYSCALL_DEFINE0()
689  * There are four different struct types for signal frame: sigframe_ia32,
701  * The FP state frame contains an XSAVE buffer which must be 64-byte aligned.
702  * If a signal frame starts at an unaligned address, extra space is required.
708  * The frame data is composed of the following areas and laid out as:
713  * | (f)xsave frame        |
770 	/* Perform fixup for the pre-signal frame. */  in setup_rt_frame()
773 	/* Set up the stack frame */  in setup_rt_frame()
900 void signal_fault(struct pt_regs *regs, void __user *frame, char *where)  in signal_fault()  argument
906 		       "%s[%d] bad frame in %s frame:%p ip:%lx sp:%lx orax:%lx",  in signal_fault()
908 		       me->comm, me->pid, where, frame,  in signal_fault()
977 	struct rt_sigframe_x32 __user *frame;  in COMPAT_SYSCALL_DEFINE0()  local
981 	frame = (struct rt_sigframe_x32 __user *)(regs->sp - 8);  in COMPAT_SYSCALL_DEFINE0()
983 	if (!access_ok(frame, sizeof(*frame)))  in COMPAT_SYSCALL_DEFINE0()
985 	if (__get_user(set.sig[0], (__u64 __user *)&frame->uc.uc_sigmask))  in COMPAT_SYSCALL_DEFINE0()
987 	if (__get_user(uc_flags, &frame->uc.uc_flags))  in COMPAT_SYSCALL_DEFINE0()
992 	if (!restore_sigcontext(regs, &frame->uc.uc_mcontext, uc_flags))  in COMPAT_SYSCALL_DEFINE0()
995 	if (compat_restore_altstack(&frame->uc.uc_stack))  in COMPAT_SYSCALL_DEFINE0()
1001 	signal_fault(regs, frame, "x32 rt_sigreturn");  in COMPAT_SYSCALL_DEFINE0()