--- zzzz-none-000/linux-3.10.107/arch/x86/um/signal.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/x86/um/signal.c	2021-02-04 17:41:59.000000000 +0000
@@ -157,7 +157,7 @@
 	int err, pid;
 
 	/* Always make any pending restarted system calls return -EINTR */
-	current_thread_info()->restart_block.fn = do_no_restart_syscall;
+	current->restart_block.fn = do_no_restart_syscall;
 
 	err = copy_from_user(&sc, from, sizeof(sc));
 	if (err)
@@ -211,7 +211,7 @@
 		if (err)
 			return 1;
 
-		err = convert_fxsr_from_user(&fpx, sc.fpstate);
+		err = convert_fxsr_from_user(&fpx, (void *)sc.fpstate);
 		if (err)
 			return 1;
 
@@ -227,7 +227,7 @@
 	{
 		struct user_i387_struct fp;
 
-		err = copy_from_user(&fp, sc.fpstate,
+		err = copy_from_user(&fp, (void *)sc.fpstate,
 				     sizeof(struct user_i387_struct));
 		if (err)
 			return 1;
@@ -291,7 +291,7 @@
 #endif
 #undef PUTREG
 	sc.oldmask = mask;
-	sc.fpstate = to_fp;
+	sc.fpstate = (unsigned long)to_fp;
 
 	err = copy_to_user(to, &sc, sizeof(struct sigcontext));
 	if (err)
@@ -370,13 +370,12 @@
 	char retcode[8];
 };
 
-int setup_signal_stack_sc(unsigned long stack_top, int sig,
-			  struct k_sigaction *ka, struct pt_regs *regs,
-			  sigset_t *mask)
+int setup_signal_stack_sc(unsigned long stack_top, struct ksignal *ksig,
+			  struct pt_regs *regs, sigset_t *mask)
 {
 	struct sigframe __user *frame;
 	void __user *restorer;
-	int err = 0;
+	int err = 0, sig = ksig->sig;
 
 	/* This is the same calculation as i386 - ((sp + 4) & 15) == 0 */
 	stack_top = ((stack_top + 4) & -16UL) - 4;
@@ -385,8 +384,8 @@
 		return 1;
 
 	restorer = frame->retcode;
-	if (ka->sa.sa_flags & SA_RESTORER)
-		restorer = ka->sa.sa_restorer;
+	if (ksig->ka.sa.sa_flags & SA_RESTORER)
+		restorer = ksig->ka.sa.sa_restorer;
 
 	err |= __put_user(restorer, &frame->pretcode);
 	err |= __put_user(sig, &frame->sig);
@@ -410,20 +409,19 @@
 		return err;
 
 	PT_REGS_SP(regs) = (unsigned long) frame;
-	PT_REGS_IP(regs) = (unsigned long) ka->sa.sa_handler;
+	PT_REGS_IP(regs) = (unsigned long) ksig->ka.sa.sa_handler;
 	PT_REGS_AX(regs) = (unsigned long) sig;
 	PT_REGS_DX(regs) = (unsigned long) 0;
 	PT_REGS_CX(regs) = (unsigned long) 0;
 	return 0;
 }
 
-int setup_signal_stack_si(unsigned long stack_top, int sig,
-			  struct k_sigaction *ka, struct pt_regs *regs,
-			  siginfo_t *info, sigset_t *mask)
+int setup_signal_stack_si(unsigned long stack_top, struct ksignal *ksig,
+			  struct pt_regs *regs, sigset_t *mask)
 {
 	struct rt_sigframe __user *frame;
 	void __user *restorer;
-	int err = 0;
+	int err = 0, sig = ksig->sig;
 
 	stack_top &= -8UL;
 	frame = (struct rt_sigframe __user *) stack_top - 1;
@@ -431,14 +429,14 @@
 		return 1;
 
 	restorer = frame->retcode;
-	if (ka->sa.sa_flags & SA_RESTORER)
-		restorer = ka->sa.sa_restorer;
+	if (ksig->ka.sa.sa_flags & SA_RESTORER)
+		restorer = ksig->ka.sa.sa_restorer;
 
 	err |= __put_user(restorer, &frame->pretcode);
 	err |= __put_user(sig, &frame->sig);
 	err |= __put_user(&frame->info, &frame->pinfo);
 	err |= __put_user(&frame->uc, &frame->puc);
-	err |= copy_siginfo_to_user(&frame->info, info);
+	err |= copy_siginfo_to_user(&frame->info, &ksig->info);
 	err |= copy_ucontext_to_user(&frame->uc, &frame->fpstate, mask,
 					PT_REGS_SP(regs));
 
@@ -457,7 +455,7 @@
 		return err;
 
 	PT_REGS_SP(regs) = (unsigned long) frame;
-	PT_REGS_IP(regs) = (unsigned long) ka->sa.sa_handler;
+	PT_REGS_IP(regs) = (unsigned long) ksig->ka.sa.sa_handler;
 	PT_REGS_AX(regs) = (unsigned long) sig;
 	PT_REGS_DX(regs) = (unsigned long) &frame->info;
 	PT_REGS_CX(regs) = (unsigned long) &frame->uc;
@@ -470,12 +468,10 @@
 	struct sigframe __user *frame = (struct sigframe __user *)(sp - 8);
 	sigset_t set;
 	struct sigcontext __user *sc = &frame->sc;
-	unsigned long __user *oldmask = &sc->oldmask;
-	unsigned long __user *extramask = frame->extramask;
 	int sig_size = (_NSIG_WORDS - 1) * sizeof(unsigned long);
 
-	if (copy_from_user(&set.sig[0], oldmask, sizeof(set.sig[0])) ||
-	    copy_from_user(&set.sig[1], extramask, sig_size))
+	if (copy_from_user(&set.sig[0], &sc->oldmask, sizeof(set.sig[0])) ||
+	    copy_from_user(&set.sig[1], frame->extramask, sig_size))
 		goto segfault;
 
 	set_current_blocked(&set);
@@ -502,13 +498,12 @@
 	struct _fpstate fpstate;
 };
 
-int setup_signal_stack_si(unsigned long stack_top, int sig,
-			  struct k_sigaction *ka, struct pt_regs * regs,
-			  siginfo_t *info, sigset_t *set)
+int setup_signal_stack_si(unsigned long stack_top, struct ksignal *ksig,
+			  struct pt_regs *regs, sigset_t *set)
 {
 	struct rt_sigframe __user *frame;
-	int err = 0;
-	struct task_struct *me = current;
+	int err = 0, sig = ksig->sig;
+	unsigned long fp_to;
 
 	frame = (struct rt_sigframe __user *)
 		round_down(stack_top - sizeof(struct rt_sigframe), 16);
@@ -518,8 +513,8 @@
 	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
 		goto out;
 
-	if (ka->sa.sa_flags & SA_SIGINFO) {
-		err |= copy_siginfo_to_user(&frame->info, info);
+	if (ksig->ka.sa.sa_flags & SA_SIGINFO) {
+		err |= copy_siginfo_to_user(&frame->info, &ksig->info);
 		if (err)
 			goto out;
 	}
@@ -530,7 +525,10 @@
 	err |= __save_altstack(&frame->uc.uc_stack, PT_REGS_SP(regs));
 	err |= copy_sc_to_user(&frame->uc.uc_mcontext, &frame->fpstate, regs,
 			       set->sig[0]);
-	err |= __put_user(&frame->fpstate, &frame->uc.uc_mcontext.fpstate);
+
+	fp_to = (unsigned long)&frame->fpstate;
+
+	err |= __put_user(fp_to, &frame->uc.uc_mcontext.fpstate);
 	if (sizeof(*set) == 16) {
 		err |= __put_user(set->sig[0], &frame->uc.uc_sigmask.sig[0]);
 		err |= __put_user(set->sig[1], &frame->uc.uc_sigmask.sig[1]);
@@ -544,8 +542,9 @@
 	 * already in userspace.
 	 */
 	/* x86-64 should always use SA_RESTORER. */
-	if (ka->sa.sa_flags & SA_RESTORER)
-		err |= __put_user(ka->sa.sa_restorer, &frame->pretcode);
+	if (ksig->ka.sa.sa_flags & SA_RESTORER)
+		err |= __put_user((void *)ksig->ka.sa.sa_restorer,
+				  &frame->pretcode);
 	else
 		/* could use a vstub here */
 		return err;
@@ -553,13 +552,6 @@
 	if (err)
 		return err;
 
-	/* Set up registers for signal handler */
-	{
-		struct exec_domain *ed = current_thread_info()->exec_domain;
-		if (unlikely(ed && ed->signal_invmap && sig < 32))
-			sig = ed->signal_invmap[sig];
-	}
-
 	PT_REGS_SP(regs) = (unsigned long) frame;
 	PT_REGS_DI(regs) = sig;
 	/* In case the signal handler was declared without prototypes */
@@ -571,7 +563,7 @@
 	 */
 	PT_REGS_SI(regs) = (unsigned long) &frame->info;
 	PT_REGS_DX(regs) = (unsigned long) &frame->uc;
-	PT_REGS_IP(regs) = (unsigned long) ka->sa.sa_handler;
+	PT_REGS_IP(regs) = (unsigned long) ksig->ka.sa.sa_handler;
  out:
 	return err;
 }