diff --git a/MAINTAINERS b/MAINTAINERS
deleted file mode 100644
index a76dc24..0000000
--- a/MAINTAINERS
+++ /dev/null
@@ -1,6 +0,0 @@
-
-Bionic support for SuperH
--------------------------
-Bionic support for SuperH architecture is written by
-Shin-ichiro KAWASAKI <shinichiro.kawasaki.mg@hitachi.com>
-and Contributed to Android by Hitachi, Ltd. and Renesas Solutions Corp.
diff --git a/libc/arch-sh/syscalls/personality.S b/libc/arch-sh/syscalls/personality.S
deleted file mode 100644
index efc2ea3..0000000
--- a/libc/arch-sh/syscalls/personality.S
+++ /dev/null
@@ -1,32 +0,0 @@
-/* autogenerated by gensyscalls.py */
-#include <sys/linux-syscalls.h>
-
-    .text
-    .type personality, @function
-    .globl personality
-    .align 4
-
-personality:
-
-    /* invoke trap */
-    mov.l   0f, r3  /* trap num */
-    trapa   #(1 + 0x10)
-
-    /* check return value */
-    cmp/pz  r0
-    bt      __NR_personality_end
-
-    /* keep error number */
-    sts.l   pr, @-r15
-    mov.l   1f, r1
-    jsr     @r1
-    mov     r0, r4
-    lds.l   @r15+, pr
-
-__NR_personality_end:
-    rts
-    nop
-
-    .align  2
-0:  .long   __NR_personality
-1:  .long   __set_syscall_errno
diff --git a/libc/tools/gensyscalls.py b/libc/tools/gensyscalls.py
index 9a8a8c7..21d2f1d 100755
--- a/libc/tools/gensyscalls.py
+++ b/libc/tools/gensyscalls.py
@@ -364,23 +364,6 @@
               "idname" : idname }
         return mips_call % t
 
-    def superh_genstub(self, fname, flags, idname):
-        numargs = int(flags)
-        t = { "fname"  : fname,
-              "idname" : idname,
-              "numargs" : numargs }
-        superh_call = superh_header
-        if flags:
-            if numargs == 5:
-                superh_call += superh_5args_header
-            if numargs == 6:
-                superh_call += superh_6args_header
-            if numargs == 7:
-                superh_call += superh_7args_header
-        superh_call += superh_call_default
-        return superh_call % t
-
-
     def process_file(self,input):
         parser = SysCallsTxtParser()
         parser.parse_file(input)
diff --git a/libdl/Android.mk b/libdl/Android.mk
index 9a51360..fb01ec2 100644
--- a/libdl/Android.mk
+++ b/libdl/Android.mk
@@ -34,21 +34,6 @@
 LOCAL_ALLOW_UNDEFINED_SYMBOLS := true
 LOCAL_SYSTEM_SHARED_LIBRARIES := 
 
-ifeq ($(TARGET_ARCH),sh)
-# for SuperH, additional code is necessary to handle .ctors section.
-GEN_SOBEGIN := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/sobegin.o
-$(GEN_SOBEGIN): $(LOCAL_PATH)/arch-sh/sobegin.S
-	@mkdir -p $(dir $@)
-	$(TARGET_CC) -o $@ -c $<
-
-GEN_SOEND := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/soend.o
-$(GEN_SOEND): $(LOCAL_PATH)/arch-sh/soend.S
-	@mkdir -p $(dir $@)
-	$(TARGET_CC) -o $@ -c $<
-
-LOCAL_ADDITIONAL_DEPENDENCIES := $(GEN_SOBEGIN) $(GEN_SOEND)
-endif
-
 include $(BUILD_SHARED_LIBRARY)
 
 BUILD_DLTEST:=0
diff --git a/libdl/arch-sh/sobegin.S b/libdl/arch-sh/sobegin.S
deleted file mode 100644
index 976b1a6..0000000
--- a/libdl/arch-sh/sobegin.S
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-    .text
-    .align 4
-    .type  _init,#function
-    .globl _init
-
-# The toolchain for SH-Linux does not produce INIT_ARRAY information which
-# bionic linker relies on.  Instead of it, The toolchain for SH-Linux produces
-# INIT information when it find the function whose name is '_init'.
-#
-_init:
-    sts.l   pr, @-r15
-    mov.l   r8, @-r15
-    mov.l   0f, r8      /* first entry is invalid */
-.L_loop:
-    add     #4, r8
-    mov.l   @r8, r0
-    cmp/eq  #0, r0      /* Zero terimnated. See 'soend.so'. */
-    bt      .L_end
-    jsr     @r0         /* invoke a constructor */
-    nop
-    bra     .L_loop
-    nop
-.L_end:
-    mov.l   @r15+, r8
-    lds.l   @r15+, pr
-
-    rts
-    nop
-
-    .balign 4
-0:  .long   __CTOR_LIST__
-
-# the .ctors section contains a list of pointers to "constructor"
-# functions that need to be called in order during C library initialization,
-# just before the program is being run. This is a C++ requirement
-#
-# the last entry shall be 0, and is defined in crtend.S
-#
-    .section .ctors, "aw"
-    .globl __CTOR_LIST__
-__CTOR_LIST__:
-    .long   -1
-
diff --git a/libdl/arch-sh/soend.S b/libdl/arch-sh/soend.S
deleted file mode 100644
index 7fa98a4..0000000
--- a/libdl/arch-sh/soend.S
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-    .section .ctors, "aw"
-    .long 0
-
diff --git a/libm/sh/_fpmath.h b/libm/sh/_fpmath.h
deleted file mode 100644
index f75ec7b..0000000
--- a/libm/sh/_fpmath.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Copyright (C) 2009 Android Open Source Project, All rights reserved.
- *   Derived from "bionic/libm/arm/_fpmath.h"
- *   Copyright (c) 2002, 2003 David Schultz <das@FreeBSD.ORG>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*
- * Assumes that 'long double' on SH-linux is just an alias for 'double'.
- */
-union IEEEl2bits {
-	long double	e;
-	struct {
-#if  __BYTE_ORDER == __LITTLE_ENDIAN
-		unsigned int	manl	:32;
-		unsigned int	manh	:20;
-		unsigned int	exp	:11;
-		unsigned int	sign	:1;
-#elif __BYTE_ORDER == __BIG_ENDIAN
-		unsigned int	sign	:1;
-		unsigned int	exp	:11;
-		unsigned int	manh	:20;
-		unsigned int	manl	:32;
-#endif
-	} bits;
-};
-
-/*
- * LDBL_NBIT is a mask indicating the position of the integer
- * bit in a long double.  But SH4 does not support it.
- */
-#define	LDBL_NBIT	0
-#define	mask_nbit_l(u)	((void)0)
-
-#define	LDBL_MANH_SIZE	20
-#define	LDBL_MANL_SIZE	32
diff --git a/libm/sh/fenv.c b/libm/sh/fenv.c
deleted file mode 100644
index ca8f476..0000000
--- a/libm/sh/fenv.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2009 Android Open Source Project, All rights reserved.
- *   Derived from "bionic/libm/arm/fenv.c"
- *   Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-long __fpscr_values[2] = { 0L, 0x80000L };
diff --git a/libm/sh/fenv.h b/libm/sh/fenv.h
deleted file mode 100644
index e872f47..0000000
--- a/libm/sh/fenv.h
+++ /dev/null
@@ -1,240 +0,0 @@
-/*
- * Copyright (C) 2009 Android Open Source Project, All rights reserved.
- *   Derived from "bionic/libm/arm/fenv.h"
- *   Copyright (c) 2004-2005 David Schultz <das@FreeBSD.ORG>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef _FENV_H_
-#define _FENV_H_
-
-#include <stdio.h>
-#include <sys/types.h>
-
-typedef	uint32_t	fenv_t;
-typedef	uint32_t	fexcept_t;
-
-/* Exception flags */
-#define	FE_INVALID		0x0010
-#define	FE_DIVBYZERO	0x0008
-#define	FE_OVERFLOW		0x0004
-#define	FE_UNDERFLOW	0x0002
-#define	FE_INEXACT		0x0001
-#define	FE_ALL_EXCEPT	(FE_DIVBYZERO | FE_INEXACT | \
-				 FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW)
-
-/* Rounding modes */
-#define	FE_TONEAREST	0x0000
-#define	FE_TOWARDZERO	0x0001
-#define	FE_UPWARD	0x0002 /* not supporetd */
-#define	FE_DOWNWARD	0x0003 /* not supporetd */
-#define	_ROUND_MASK	(FE_TONEAREST | FE_DOWNWARD | \
-				 FE_UPWARD | FE_TOWARDZERO)
-
-/* bit shift for FPSCR mapping */
-#define	_FPUE_CAUSE_SHIFT	12
-#define	_FPUE_ENABLE_SHIFT	17
-#define	_FPUE_FLAG_SHIFT	 2
-
-/* bit shifters */
-#define	_FPUE_CAUSE(_EXCS)	((_EXCS) << _FPUE_CAUSE_SHIFT)
-#define	_FPUE_ENABLE(_EXCS)	((_EXCS) << _FPUE_ENABLE_SHIFT)
-#define	_FPUE_FLAG(_EXCS)	((_EXCS) << _FPUE_FLAG_SHIFT)
-
-#define	_GET_FPUE_CAUSE(_FPUE)		(((_FPUE) >> _FPUE_CAUSE_SHIFT) & FE_ALL_EXCEPT)
-#define	_GET_FPUE_ENABLE(_FPUE)	(((_FPUE) >> _FPUE_ENABLE_SHIFT)& FE_ALL_EXCEPT)
-#define	_GET_FPUE_FLAG(_FPUE)		(((_FPUE) >> _FPUE_FLAG_SHIFT) & FE_ALL_EXCEPT)
-
-
-/* FPSCR register accessors */
-#ifdef	__SH4_NOFPU__
-#define	__read_fpscr(_ptr)
-#define	__write_fpscr(_val)
-#else
-#define	__read_fpscr(_ptr)	__asm __volatile("sts fpscr, %0" : "=r" (*(_ptr)))
-#define	__write_fpscr(_val)	__asm __volatile("lds %0, fpscr" : : "r" (_val))
-#endif
-
-
-/* functions for libm */
-static __inline int
-feclearexcept(int __excepts)
-{
-	uint32_t __fpscr;
-
-	__read_fpscr(&__fpscr);
-	__fpscr &= ~_FPUE_FLAG(__excepts);
-	__write_fpscr(__fpscr);
-	return (0);
-}
-
-static __inline int
-fegetexceptflag(fexcept_t *__flagp, int __excepts)
-{
-	uint32_t __fpscr;
-
-	__read_fpscr(&__fpscr);
-	*__flagp = _GET_FPUE_FLAG(__fpscr) & __excepts;
-	return (0);
-}
-
-
-static __inline int
-fesetexceptflag(const fexcept_t *__flagp, int __excepts)
-{
-	uint32_t __fpscr;
-
-	__read_fpscr(&__fpscr);
-	__fpscr &= ~_FPUE_FLAG(__excepts);
-	__fpscr |= ~_FPUE_FLAG(*__flagp & __excepts);
-	__write_fpscr(__fpscr);
-	return (0);
-}
-
-
-static __inline int
-feraiseexcept(int __excepts)
-{
-	fexcept_t __ex = __excepts;
-
-	fesetexceptflag(&__ex, __excepts);	/* XXX */
-	return (0);
-}
-
-
-static __inline int
-fetestexcept(int __excepts)
-{
-	fexcept_t __ex;
-
-	fegetexceptflag(&__ex,  __excepts);
-	return (__ex);
-}
-
-
-static __inline int
-fegetround(void)
-{
-	uint32_t __fpscr = 0;
-
-	__read_fpscr(&__fpscr);
-	return (__fpscr & _ROUND_MASK);	
-}
-
-static __inline int
-fesetround(int __round)
-{
-	uint32_t __fpscr = 0;
-
-	if (__round == FE_UPWARD || __round == FE_DOWNWARD) {
-		fprintf(stderr, "libm superh : "
-			"upward/downward rounding not supporetd.\n");
-		return -1;
-	}
-
-	__read_fpscr(&__fpscr);
-	__fpscr &= ~_ROUND_MASK;
-	__fpscr |= (__round & _ROUND_MASK);
-	__write_fpscr(__fpscr);
-	return (0);
-}
-
-static __inline int
-fegetenv(fenv_t *__envp)
-{
-	__read_fpscr(__envp);
-	return (0);
-}
-
-static __inline int
-feholdexcept(fenv_t *__envp)
-{
-	uint32_t __fpscr;
-
-	__read_fpscr(&__fpscr);
-	*__envp = __fpscr;
-	__fpscr &= ~_FPUE_FLAG(FE_ALL_EXCEPT);
-	__write_fpscr(__fpscr);
-	return (0);
-}
-
-
-static __inline int
-fesetenv(const fenv_t *__envp)
-{
-	__write_fpscr(*__envp);
-	return (0);
-}
-
-
-static __inline int
-feupdateenv(const fenv_t *__envp)
-{
-	uint32_t __fpscr;
-
-	__read_fpscr(&__fpscr);
-	__write_fpscr(*__envp);
-	feraiseexcept(_GET_FPUE_FLAG(__fpscr));
-	return (0);
-}
-
-#if __BSD_VISIBLE
-
-static __inline int
-feenableexcept(int __mask)
-{
-	uint32_t __old_fpscr, __new_fpscr;
-
-	__read_fpscr(&__old_fpscr);
-	__new_fpscr = __old_fpscr | _FPUE_ENABLE(__mask & FE_ALL_EXCEPT);
-	__write_fpscr(__new_fpscr);
-	return (_GET_FPUE_ENABLE(__old_fpscr));
-}
-
-static __inline int
-fedisableexcept(int __mask)
-{
-	uint32_t __old_fpscr, __new_fpscr;
-
-	__read_fpscr(&__old_fpscr);
-	__new_fpscr = __old_fpscr & ~(_FPUE_ENABLE(__mask & FE_ALL_EXCEPT));
-	__write_fpscr(__new_fpscr);
-	return (_GET_FPUE_ENABLE(__old_fpscr));
-}
-
-static __inline int
-fegetexcept(void)
-{
-	uint32_t __fpscr;
-
-	__read_fpscr(&__fpscr);
-	return (_GET_FPUE_ENABLE(__fpscr));
-}
-
-#endif /* __BSD_VISIBLE */
-
-
-#endif /* _FENV_H_ */
-