diff --git a/ChangeLog.arm b/ChangeLog.arm
index 16380331e1..d784564cf4 100644
--- a/ChangeLog.arm
+++ b/ChangeLog.arm
@@ -1,3 +1,10 @@
+2009-11-04  Philip Blundell  <philb@gnu.org>
+
+	* sysdeps/unix/sysv/linux/arm/clone.S: Support V4T interworking.
+	* sysdeps/unix/sysv/linux/arm/sysdep.h (__local_syscall_error): Likewise.
+	* sysdeps/arm/memcpy.S: Likewise.
+	* sysdeps/arm/memmove.S: Likewise.
+
 2009-10-29  Joseph Myers  <joseph@codesourcery.com>
 
 	* sysdeps/unix/sysv/linux/arm/bits/fcntl.h: Define F_OWNER_* and
diff --git a/sysdeps/arm/memcpy.S b/sysdeps/arm/memcpy.S
index 61cf33cbfb..7f669a6e90 100644
--- a/sysdeps/arm/memcpy.S
+++ b/sysdeps/arm/memcpy.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2006, 2009 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    Contributed by MontaVista Software, Inc. (written by Nicolas Pitre)
@@ -130,7 +130,12 @@ ENTRY(memcpy)
 		strcsb	r4, [r0], #1
 		strcsb	ip, [r0]
 
+#if defined (__ARM_ARCH_4T__) && defined(__THUMB_INTERWORK__)
+		ldmfd	sp!, {r0, r4, lr}
+		bx      lr
+#else
 		ldmfd	sp!, {r0, r4, pc}
+#endif
 
 9:		rsb	ip, ip, #4
 		cmp	ip, #2
diff --git a/sysdeps/arm/memmove.S b/sysdeps/arm/memmove.S
index eda1bcc9b7..9c9b2344d2 100644
--- a/sysdeps/arm/memmove.S
+++ b/sysdeps/arm/memmove.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2006, 2008 Free Software Foundation, Inc.
+/* Copyright (C) 2006, 2008, 2009 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    Contributed by MontaVista Software, Inc. (written by Nicolas Pitre)
@@ -144,7 +144,12 @@ ENTRY(memmove)
 		strneb	r3, [r0, #-1]!
 		strcsb	r4, [r0, #-1]!
 		strcsb	ip, [r0, #-1]
+#if defined (__ARM_ARCH_4T__) && defined (__THUMB_INTERWORK__)
+		ldmfd	sp!, {r0, r4, lr}
+		bx      lr
+#else
 		ldmfd	sp!, {r0, r4, pc}
+#endif
 
 9:		cmp	ip, #2
 		ldrgtb	r3, [r1, #-1]!
diff --git a/sysdeps/unix/sysv/linux/arm/clone.S b/sysdeps/unix/sysv/linux/arm/clone.S
index cfd2e7ef71..1a19f5b558 100644
--- a/sysdeps/unix/sysv/linux/arm/clone.S
+++ b/sysdeps/unix/sysv/linux/arm/clone.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 1998, 1999, 2002, 2005, 2008
+/* Copyright (C) 1996, 1997, 1998, 1999, 2002, 2005, 2008, 2009
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Pat Beirne <patb@corelcomputer.com>
@@ -96,8 +96,14 @@ ENTRY(__clone)
 #endif
 	@ pick the function arg and call address off the stack and execute
 	ldr	r0, [sp, #4]
+#if defined(__ARM_ARCH_4T__) && defined(__THUMB_INTERWORK__)
+	ldr 	ip, [sp], #8
+	mov	lr, pc
+	bx      ip
+#else
 	mov	lr, pc
 	ldr 	pc, [sp], #8
+#endif
 
 	@ and we are done, passing the return value through r0
 	b	PLTJMP(HIDDEN_JUMPTARGET(_exit))
diff --git a/sysdeps/unix/sysv/linux/arm/sysdep.h b/sysdeps/unix/sysv/linux/arm/sysdep.h
index 3d7fafcb6f..3911aee626 100644
--- a/sysdeps/unix/sysv/linux/arm/sysdep.h
+++ b/sysdeps/unix/sysv/linux/arm/sysdep.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992, 93, 1995-2000, 2002, 2003, 2005, 2006
+/* Copyright (C) 1992, 93, 1995-2000, 2002, 2003, 2005, 2006, 2009
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>, August 1995.
@@ -129,6 +129,11 @@ __local_syscall_error:						\
        DO_RET(lr);						\
 1:     .word C_SYMBOL_NAME(rtld_errno) - 0b - 8;
 # else
+#if defined(__ARM_ARCH_4T__) && defined(__THUMB_INTERWORK__)
+#define POP_PC  ldr     lr, [sp], #4; bx lr
+#else
+#define POP_PC  ldr     pc, [sp], #4
+#endif
 #  define SYSCALL_ERROR_HANDLER					\
 __local_syscall_error:						\
 	str	lr, [sp, #-4]!;					\
@@ -138,7 +143,7 @@ __local_syscall_error:						\
 	rsb	r1, r1, #0;					\
 	str	r1, [r0];					\
 	mvn	r0, #0;						\
-	ldr	pc, [sp], #4;
+	POP_PC;
 # endif
 #else
 # define SYSCALL_ERROR_HANDLER	/* Nothing here; code in sysdep.S is used.  */