diff --git a/libc/kernel/arch-sh/asm/system.h b/libc/kernel/arch-sh/asm/system.h
new file mode 100644
index 0000000..8b1981e
--- /dev/null
+++ b/libc/kernel/arch-sh/asm/system.h
@@ -0,0 +1,63 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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_H
+#define __ASM_SH_SYSTEM_H
+
+#include <linux/irqflags.h>
+#include <linux/compiler.h>
+#include <linux/linkage.h>
+#include <asm/types.h>
+#include <asm/ptrace.h>
+
+#define AT_VECTOR_SIZE_ARCH 5  
+
+#define __icbi()  {   unsigned long __addr;   __addr = 0xa8000000;   __asm__ __volatile__(   "icbi   %0\n\t"   :     : "m" (__m(__addr)));  }
+
+#define mb() __asm__ __volatile__ ("synco": : :"memory")
+#define rmb() mb()
+#define wmb() __asm__ __volatile__ ("synco": : :"memory")
+#define ctrl_barrier() __icbi()
+#define read_barrier_depends() do { } while(0)
+
+#define smp_mb() barrier()
+#define smp_rmb() barrier()
+#define smp_wmb() barrier()
+#define smp_read_barrier_depends() do { } while(0)
+
+#define set_mb(var, value) do { (void)xchg(&var, value); } while (0)
+
+#include <asm/cmpxchg-irq.h>
+
+#define __xchg(ptr, x, size)  ({   unsigned long __xchg__res;   volatile void *__xchg_ptr = (ptr);   switch (size) {   case 4:   __xchg__res = xchg_u32(__xchg_ptr, x);   break;   case 1:   __xchg__res = xchg_u8(__xchg_ptr, x);   break;   default:   __xchg_called_with_bad_pointer();   __xchg__res = x;   break;   }     __xchg__res;  })
+
+#define xchg(ptr,x)   ((__typeof__(*(ptr)))__xchg((ptr),(unsigned long)(x), sizeof(*(ptr))))
+
+#define __HAVE_ARCH_CMPXCHG 1
+
+#define cmpxchg(ptr,o,n)   ({   __typeof__(*(ptr)) _o_ = (o);   __typeof__(*(ptr)) _n_ = (n);   (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_,   (unsigned long)_n_, sizeof(*(ptr)));   })
+
+#define instruction_size(insn) (2)
+
+#define BUILD_TRAP_HANDLER(name)  asmlinkage void name##_trap_handler(unsigned long r4, unsigned long r5,   unsigned long r6, unsigned long r7,   struct pt_regs __regs)
+
+#define TRAP_HANDLER_DECL   struct pt_regs *regs = RELOC_HIDE(&__regs, 0);   unsigned int vec = regs->tra;   (void)vec;
+
+#define arch_align_stack(x) (x)
+
+struct mem_access {
+ unsigned long (*from)(void *dst, const void *src, unsigned long cnt);
+ unsigned long (*to)(void *dst, const void *src, unsigned long cnt);
+};
+
+#include "system_32.h"
+
+#endif