--- zzzz-none-000/linux-3.10.107/arch/h8300/kernel/process.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/h8300/kernel/process.c	2021-02-04 17:41:59.000000000 +0000
@@ -52,46 +52,46 @@
 /*
  * The idle loop on an H8/300..
  */
-#if !defined(CONFIG_H8300H_SIM) && !defined(CONFIG_H8S_SIM)
 void arch_cpu_idle(void)
 {
 	local_irq_enable();
-	/* XXX: race here! What if need_resched() gets set now? */
 	__asm__("sleep");
 }
-#endif
 
-void machine_restart(char * __unused)
+void machine_restart(char *__unused)
 {
 	local_irq_disable();
-	__asm__("jmp @@0"); 
+	__asm__("jmp @@0");
 }
 
 void machine_halt(void)
 {
 	local_irq_disable();
 	__asm__("sleep");
-	for (;;);
+	for (;;)
+		;
 }
 
 void machine_power_off(void)
 {
 	local_irq_disable();
 	__asm__("sleep");
-	for (;;);
+	for (;;)
+		;
 }
 
-void show_regs(struct pt_regs * regs)
+void show_regs(struct pt_regs *regs)
 {
 	show_regs_print_info(KERN_DEFAULT);
 
-	printk("\nPC: %08lx  Status: %02x",
+	pr_notice("\n");
+	pr_notice("PC: %08lx  Status: %02x\n",
 	       regs->pc, regs->ccr);
-	printk("\nORIG_ER0: %08lx ER0: %08lx ER1: %08lx",
+	pr_notice("ORIG_ER0: %08lx ER0: %08lx ER1: %08lx\n",
 	       regs->orig_er0, regs->er0, regs->er1);
-	printk("\nER2: %08lx ER3: %08lx ER4: %08lx ER5: %08lx",
+	pr_notice("ER2: %08lx ER3: %08lx ER4: %08lx ER5: %08lx\n",
 	       regs->er2, regs->er3, regs->er4, regs->er5);
-	printk("\nER6' %08lx ",regs->er6);
+	pr_notice("ER6' %08lx ", regs->er6);
 	if (user_mode(regs))
 		printk("USP: %08lx\n", rdusp());
 	else
@@ -103,10 +103,10 @@
 }
 
 int copy_thread(unsigned long clone_flags,
-                unsigned long usp, unsigned long topstk,
-		 struct task_struct * p)
+		unsigned long usp, unsigned long topstk,
+		struct task_struct *p)
 {
-	struct pt_regs * childregs;
+	struct pt_regs *childregs;
 
 	childregs = (struct pt_regs *) (THREAD_SIZE + task_stack_page(p)) - 1;
 
@@ -115,12 +115,12 @@
 		childregs->retpc = (unsigned long) ret_from_kernel_thread;
 		childregs->er4 = topstk; /* arg */
 		childregs->er5 = usp; /* fn */
-		p->thread.ksp = (unsigned long)childregs;
+	}  else {
+		*childregs = *current_pt_regs();
+		childregs->er0 = 0;
+		childregs->retpc = (unsigned long) ret_from_fork;
+		p->thread.usp = usp ?: rdusp();
 	}
-	*childregs = *current_pt_regs();
-	childregs->retpc = (unsigned long) ret_from_fork;
-	childregs->er0 = 0;
-	p->thread.usp = usp ?: rdusp();
 	p->thread.ksp = (unsigned long)childregs;
 
 	return 0;
@@ -136,6 +136,7 @@
 	unsigned long fp, pc;
 	unsigned long stack_page;
 	int count = 0;
+
 	if (!p || p == current || p->state == TASK_RUNNING)
 		return 0;
 
@@ -152,3 +153,19 @@
 	} while (count++ < 16);
 	return 0;
 }
+
+/* generic sys_clone is not enough registers */
+asmlinkage int sys_clone(unsigned long __user *args)
+{
+	unsigned long clone_flags;
+	unsigned long  newsp;
+	uintptr_t parent_tidptr;
+	uintptr_t child_tidptr;
+
+	get_user(clone_flags, &args[0]);
+	get_user(newsp, &args[1]);
+	get_user(parent_tidptr, &args[2]);
+	get_user(child_tidptr, &args[3]);
+	return do_fork(clone_flags, newsp, 0,
+		       (int __user *)parent_tidptr, (int __user *)child_tidptr);
+}