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diff --git a/gcc-4.9/libgcc/config/arm/crtn.S b/gcc-4.9/libgcc/config/arm/crtn.S
new file mode 100644
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+++ b/gcc-4.9/libgcc/config/arm/crtn.S
@@ -0,0 +1,82 @@
+#   Copyright (C) 2001-2014 Free Software Foundation, Inc.
+#   Written By Nick Clifton
+# 
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation; either version 3, or (at your option) any
+# later version.
+# 
+# This file is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+# 
+# Under Section 7 of GPL version 3, you are granted additional
+# permissions described in the GCC Runtime Library Exception, version
+# 3.1, as published by the Free Software Foundation.
+# 
+# You should have received a copy of the GNU General Public License and
+# a copy of the GCC Runtime Library Exception along with this program;
+# see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+# <http://www.gnu.org/licenses/>.
+
+/* An executable stack is *not* required for these functions.  */
+#if defined(__ELF__) && defined(__linux__)
+.section .note.GNU-stack,"",%progbits
+.previous
+#endif
+
+#ifdef __ARM_EABI__
+/* Some attributes that are common to all routines in this file.  */
+	/* Tag_ABI_align_needed: This code does not require 8-byte
+	   alignment from the caller.  */
+	/* .eabi_attribute 24, 0  -- default setting.  */
+	/* Tag_ABI_align_preserved: This code preserves 8-byte
+	   alignment in any callee.  */
+	.eabi_attribute 25, 1
+#endif /* __ARM_EABI__ */
+
+# This file just makes sure that the .fini and .init sections do in
+# fact return.  Users may put any desired instructions in those sections.
+# This file is the last thing linked into any executable.
+
+	# Note - this macro is complemented by the FUNC_START macro
+	# in crti.S.  If you change this macro you must also change
+	# that macro match.
+	#
+	# Note - we do not try any fancy optimizations of the return
+	# sequences here, it is just not worth it.  Instead keep things
+	# simple.  Restore all the save registers, including the link
+	# register and then perform the correct function return instruction.
+	# We also save/restore r3 to ensure stack alignment.
+.macro FUNC_END
+#ifdef __thumb__
+	.thumb
+	
+	pop	{r3, r4, r5, r6, r7}
+	pop	{r3}
+	mov	lr, r3
+#else
+	.arm
+	
+	sub	sp, fp, #40
+	ldmfd	sp, {r4, r5, r6, r7, r8, r9, sl, fp, sp, lr}
+#endif
+	
+#if defined __THUMB_INTERWORK__ || defined __thumb__
+	bx	lr
+#else
+	mov	pc, lr
+#endif
+.endm
+		
+	
+	.section	".init"
+	;;
+	FUNC_END
+	
+	.section	".fini"
+	;;
+	FUNC_END
+	
+# end of crtn.S