added headers for SuperH which automatically generate by update_all.py

base on kernel 2.6.27 arch/sh/include/asm/
diff --git a/libc/kernel/arch-sh/asm/system_64.h b/libc/kernel/arch-sh/asm/system_64.h
new file mode 100644
index 0000000..1bc4710
--- /dev/null
+++ b/libc/kernel/arch-sh/asm/system_64.h
@@ -0,0 +1,29 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef __ASM_SH_SYSTEM_64_H
+#define __ASM_SH_SYSTEM_64_H
+
+#include <asm/processor.h>
+
+struct task_struct *sh64_switch_to(struct task_struct *prev,
+ struct thread_struct *prev_thread,
+ struct task_struct *next,
+ struct thread_struct *next_thread);
+
+#define switch_to(prev,next,last)  do {   if (last_task_used_math != next) {   struct pt_regs *regs = next->thread.uregs;   if (regs) regs->sr |= SR_FD;   }   last = sh64_switch_to(prev, &prev->thread, next,   &next->thread);  } while (0)
+
+#define __uses_jump_to_uncached
+
+#define jump_to_uncached() do { } while (0)
+#define back_to_cached() do { } while (0)
+
+#endif