--- /dev/null	2009-05-20 08:55:24.502400914 +0900
+++ a/src/syscall-sh.h	2009-05-26 10:18:29.000000000 +0900
@@ -0,0 +1,78 @@
+/* Copy from ./arch/sh/include/asm/unistd_32.h */
+#define __NR_io_setup       245
+#define __NR_io_destroy     246
+#define __NR_io_getevents   247
+#define __NR_io_submit      248
+#define __NR_io_cancel      249
+
+#define io_syscall1(type,name,type1,arg1) \
+type name(type1 arg1) \
+{ \
+register long __sc0 __asm__ ("r3") = __NR_##name; \
+register long __sc4 __asm__ ("r4") = (long) arg1; \
+__asm__ __volatile__ ("trapa    #0x11" \
+	: "=z" (__sc0) \
+	: "0" (__sc0), "r" (__sc4) \
+	: "memory"); \
+	__syscall_return(type,__sc0); \
+}
+
+#define io_syscall2(type,name,type1,arg1,type2,arg2) \
+type name(type1 arg1,type2 arg2) \
+{ \
+register long __sc0 __asm__ ("r3") = __NR_##name; \
+register long __sc4 __asm__ ("r4") = (long) arg1; \
+register long __sc5 __asm__ ("r5") = (long) arg2; \
+	__asm__ __volatile__ ("trapa    #0x12" \
+	: "=z" (__sc0) \
+	: "0" (__sc0), "r" (__sc4), "r" (__sc5) \
+	: "memory"); \
+__syscall_return(type,__sc0); \
+}
+
+#define io_syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
+type name(type1 arg1,type2 arg2,type3 arg3) \
+{ \
+register long __sc0 __asm__ ("r3") = __NR_##name; \
+register long __sc4 __asm__ ("r4") = (long) arg1; \
+register long __sc5 __asm__ ("r5") = (long) arg2; \
+register long __sc6 __asm__ ("r6") = (long) arg3; \
+	__asm__ __volatile__ ("trapa    #0x13" \
+	: "=z" (__sc0) \
+	: "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6) \
+	: "memory"); \
+__syscall_return(type,__sc0); \
+}
+
+#define io_syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
+{ \
+register long __sc0 __asm__ ("r3") = __NR_##name; \
+register long __sc4 __asm__ ("r4") = (long) arg1; \
+register long __sc5 __asm__ ("r5") = (long) arg2; \
+register long __sc6 __asm__ ("r6") = (long) arg3; \
+register long __sc7 __asm__ ("r7") = (long) arg4; \
+__asm__ __volatile__ ("trapa    #0x14" \
+	: "=z" (__sc0) \
+	: "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6),  \
+	"r" (__sc7) \
+	: "memory" ); \
+__syscall_return(type,__sc0); \
+}
+
+#define io_syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
+type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
+{ \
+register long __sc3 __asm__ ("r3") = __NR_##name; \
+register long __sc4 __asm__ ("r4") = (long) arg1; \
+register long __sc5 __asm__ ("r5") = (long) arg2; \
+register long __sc6 __asm__ ("r6") = (long) arg3; \
+register long __sc7 __asm__ ("r7") = (long) arg4; \
+register long __sc0 __asm__ ("r0") = (long) arg5; \
+__asm__ __volatile__ ("trapa    #0x15" \
+	: "=z" (__sc0) \
+	: "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6), "r" (__sc7),  \
+	"r" (__sc3) \
+	: "memory" ); \
+__syscall_return(type,__sc0); \
+}
--- a/src/syscall.h	2009-05-26 10:23:24.000000000 +0900
+++ b/src/syscall.h	2009-05-26 10:23:38.000000000 +0900
@@ -32,6 +32,8 @@
 #include "syscall-parisc.h"
 #elif defined(__mips__)
 #include "syscall-mips.h"
+#elif defined(__sh__)
+#include "syscall-sh.h"
 #else
 #error "add syscall-arch.h"
 #endif
--- a/src/libaio.h	2009-05-26 10:26:44.000000000 +0900
+++ b/src/libaio.h	2009-05-26 10:32:33.000000000 +0900
@@ -107,6 +107,16 @@
 #  else
 #    error "neither mipseb nor mipsel?"
 #  endif
+#elif defined(__sh__) /* sh3/sh4*/
+#  if defined (__BIG_ENDIAN__) /* big endian, 32 bits */
+#define PADDED(x, y)	unsigned y; x
+#define PADDEDptr(x, y)	unsigned y; x
+#define PADDEDul(x, y)	unsigned y; unsigned long x
+#  elif defined(__LITTLE_ENDIAN__) /* little endian, 32 bits */
+#define PADDED(x, y)	x; unsigned y
+#define PADDEDptr(x, y)	x; unsigned y
+#define PADDEDul(x, y)	unsigned long x; unsigned y
+#  endif
 #else
 #error	endian?
 #endif