cr16: remove obsoleted port

contrib/ChangeLog:

	* config-list.mk: Remove cr16.

gcc/ChangeLog:

	* doc/extend.texi: Remove cr16 related stuff.
	* doc/install.texi: Likewise.
	* doc/invoke.texi: Likewise.
	* doc/md.texi: Likewise.
	* function-tests.cc (test_expansion_to_rtl): Likewise.
	* common/config/cr16/cr16-common.cc: Removed.
	* config/cr16/constraints.md: Removed.
	* config/cr16/cr16-protos.h: Removed.
	* config/cr16/cr16.cc: Removed.
	* config/cr16/cr16.h: Removed.
	* config/cr16/cr16.md: Removed.
	* config/cr16/cr16.opt: Removed.
	* config/cr16/predicates.md: Removed.
	* config/cr16/t-cr16: Removed.

libgcc/ChangeLog:

	* config.host: Remove cr16 related stuff.
	* config/cr16/crti.S: Removed.
	* config/cr16/crtlibid.S: Removed.
	* config/cr16/crtn.S: Removed.
	* config/cr16/divmodhi3.c: Removed.
	* config/cr16/lib1funcs.S: Removed.
	* config/cr16/t-cr16: Removed.
	* config/cr16/t-crtlibid: Removed.
	* config/cr16/unwind-cr16.c: Removed.
	* config/cr16/unwind-dw2.h: Removed.

gcc/testsuite/ChangeLog:

	* lib/target-supports.exp: Remove cr16 related stuff.

10 files changed, 0 insertions, 2623 deletions

diff --git a/libgcc/config.host b/libgcc/config.host
index b2a0a8e..9a28b10 100644
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -110,8 +110,6 @@ bfin*-*)
 bpf-*-*)
         cpu_type=bpf
         ;;
-cr16-*-*)
-	;;
 csky*-*-*)
 	cpu_type=csky
 	;;
@@ -591,10 +589,6 @@ bpf-*-*)
         tmake_file="$tmake_file ${cpu_type}/t-${cpu_type}"
         extra_parts="crti.o crtn.o"
 	;;
-cr16-*-elf)
-	tmake_file="${tmake_file} cr16/t-cr16 cr16/t-crtlibid t-fdpbit"
-	extra_parts="$extra_parts crti.o crtn.o crtlibid.o"
-        ;;
 cris-*-elf)
 	tmake_file="$tmake_file cris/t-cris t-softfp-sfdf t-softfp cris/t-elfmulti"
 	;;
diff --git a/libgcc/config/cr16/crti.S b/libgcc/config/cr16/crti.S
deleted file mode 100644
index 463d0e3..0000000
--- a/libgcc/config/cr16/crti.S
+++ /dev/null
@@ -1,54 +0,0 @@
-# Specialized code needed to support construction and destruction of
-# file-scope objects in C++ and Java code, and to support exception handling.
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
-# Contributed by KPIT Cummins Infosystems Limited.
-
-# 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/>.
-
-
-/* This file just supplies function prologues for the .init and .fini
-   sections.  It is linked in before crtbegin.o.  */
-
-	.ident  "GNU C crti.o"
-
-	.section .init
-	.globl  __init
-	.type   __init,@function
-__init:
-#if defined (__ID_SHARED_LIB__)
-	push	$2, r12, ra
-	movd    $__current_shared_library_r12_offset_, (r1,r0)
-	loadd   [r12]0(r1,r0), (r12)
-#else
-        push	ra
-#endif
-
-	.section .fini
-	.globl  __fini
-	.type   __fini,@function
-__fini:
-#if defined (__ID_SHARED_LIB__)
-	push	$2, r12, ra
-	movd    $__current_shared_library_r12_offset_, (r1,r0)
-	loadd   [r12]0(r1,r0), (r12)
-#else
-        push	ra
-#endif
-	
diff --git a/libgcc/config/cr16/crtlibid.S b/libgcc/config/cr16/crtlibid.S
deleted file mode 100644
index f3b8f52..0000000
--- a/libgcc/config/cr16/crtlibid.S
+++ /dev/null
@@ -1,28 +0,0 @@
-# Provide a weak definition of the library ID, for the benefit of certain
-# configure scripts.	 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
-# Contributed by KPIT Cummins Infosystems Limited.
-
-# 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/>.
-
-	.ident  "GNU C crtlibid.o"
-
-.weak __current_shared_library_r12_offset_
-.set __current_shared_library_r12_offset_, 0
diff --git a/libgcc/config/cr16/crtn.S b/libgcc/config/cr16/crtn.S
deleted file mode 100644
index c0ef6a5..0000000
--- a/libgcc/config/cr16/crtn.S
+++ /dev/null
@@ -1,44 +0,0 @@
-# Specialized code needed to support construction and destruction of
-# file-scope objects in C++ and Java code, and to support exception handling.
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
-# Contributed by KPIT Cummins Infosystems Limited.
-
-# 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/>.
-
-
-/* This file supplies function epilogues for the .init and .fini sections.
-  It is linked in after all other files.  */
-
-	.ident  "GNU C crtn.o"
-
-	.section .init
-#if defined (__ID_SHARED_LIB__)
-	popret	$2, r12, ra
-#else
-	popret	ra
-#endif
-
-	.section .fini
-#if defined (__ID_SHARED_LIB__)
-	popret	$2, r12, ra
-#else
-	popret	ra
-#endif
-
diff --git a/libgcc/config/cr16/divmodhi3.c b/libgcc/config/cr16/divmodhi3.c
deleted file mode 100644
index 21265d0..0000000
--- a/libgcc/config/cr16/divmodhi3.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/* Libgcc Target specific implementation - Emulating div and mod.
-   Copyright (C) 2012-2022 Free Software Foundation, Inc.
-   Contributed by KPIT Cummins Infosystems Limited.
-
-   This file is part of GCC.
-
-   GCC 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.
-
-   GCC 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/>.  */
-	 
-
-/* Emulate the division and modulus operation.  */
-
-unsigned short
-udivmodhi4 (unsigned short num, unsigned short den, short modwanted)
-{
-  unsigned short bit = 1;
-  unsigned short res = 0;
-
-  while (den < num && bit && !(den & (1 << 15)))
-    {
-      den <<= 1;
-      bit <<= 1;
-    }
-  while (bit)
-    {
-      if (num >= den)
-	{
-	  num -= den;
-	  res |= bit;
-	}
-      bit >>= 1;
-      den >>= 1;
-    }
-
-  if (modwanted)
-    return num;
-  return res;
-}
-
-short
-__divhi3 (short a, short b)
-{
-  short neg = 0;
-  short res;
-
-  if (a < 0)
-    {
-      a = -a;
-      neg = !neg;
-    }
-
-  if (b < 0)
-    {
-      b = -b;
-      neg = !neg;
-    }
-
-  res = udivmodhi4 (a, b, 0);
-
-  if (neg)
-    res = -res;
-
-  return res;
-}
-
-short
-__modhi3 (short a, short b)
-{
-  short neg = 0;
-  short res;
-
-  if (a < 0)
-    {
-      a = -a;
-      neg = 1;
-    }
-
-  if (b < 0)
-    b = -b;
-
-  res = udivmodhi4 (a, b, 1);
-
-  if (neg)
-    res = -res;
-
-  return res;
-}
-
-short
-__udivhi3 (short a, short b)
-{
-  return udivmodhi4 (a, b, 0);
-}
-
-short
-__umodhi3 (short a, short b)
-{
-  return udivmodhi4 (a, b, 1);
-}
diff --git a/libgcc/config/cr16/lib1funcs.S b/libgcc/config/cr16/lib1funcs.S
deleted file mode 100644
index 502ec1a..0000000
--- a/libgcc/config/cr16/lib1funcs.S
+++ /dev/null
@@ -1,563 +0,0 @@
-/* Libgcc Target specific implementation.
-   Copyright (C) 2012-2022 Free Software Foundation, Inc.
-   Contributed by KPIT Cummins Infosystems Limited.
-
-   This file is part of GCC.
-
-   GCC 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.
-
-   GCC 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/>.  */
-
-#ifdef  L_mulsi3
-	.text
-	.align  4
-	.globl  ___mulsi3
-___mulsi3:
-	movw    r4,r0
-	movw    r2,r1
-	/* Extended multiplication between the 2 lower words */
-	muluw   r1,(r1,r0)
-
-	/* Multiply the lower word of each parameter  */  
-	mulw    r2,r5   
-    
-	/* With the higher word of the other  */
-	mulw    r3,r4     
-  
-	/* Add products to the higher part of the final result  */
-	addw    r4,r1       
-	addw    r5,r1
-	jump    (ra)
-#endif
-
-#ifdef L_divdi3
-	.text
-	.align 4
-	.globl ___divdi3
-
-___divdi3:
-	push	$4, r7, ra
-
-	/* Param #1 Long Long low bit first */
-	loadd   12(sp), (r1, r0)
-	loadd   16(sp), (r3, r2)
-
-	/* Param #2 Long Long low bit first */
-	loadd   20(sp), (r5, r4)
-	loadd   24(sp), (r7, r6)
-	
-	/* Set neg to 0 */
-	movw $0, r10
-	
-	subd $16, (sp)
-
-	/* Compare if param1 is greater than 0 */	
-	cmpw $0, r3
-	ble L4
-
-	/* Invert param1 and neg */
-	movd $-1, (r9, r8) 	/* Temp set to FFFFFFFF */
-	xord (r9, r8), (r1, r0)	/* Xor low bits of param 1 with temp */
-	xord (r9, r8), (r3, r2)	/* Xor high bits of param 1 with temp */
-	addd $1, (r1, r0)	/* Add 1 to low bits of param 1 */
-	xorw $1, r10		/* Invert neg */
-	bcc L4			/* If no carry occurred go to L4 */
-	addd $1, (r3, r2)	/* Add 1 to high bits of param 1 */
-
-L4:	stord (r1, r0), 0(sp)
-	stord (r3, r2), 4(sp)
-	
-	/* Compare if param2 is greater than 0 */	
-	cmpw $0, r7
-	ble L5
-
-	/* Invert param2 and neg */
-	movd $-1, (r9, r8)	/* Temp set to FFFFFFFF */
-	xord (r9, r8), (r5, r4)	/* Xor low bits of param 2 with temp */
-	xord (r9, r8), (r7, r6)	/* Xor high bits of param 2 with temp */
-	addd $1, (r5, r4)	/* Add 1 to low bits of param 2 */
-	xorw $1, r10		/* Invert neg */
-	bcc L5			/* If no carry occurred go to L5 */
-	addd $1, (r7, r6)	/* Add 1 to high bits of param 2 */
-
-L5:	stord (r5, r4), 8(sp)
-	stord (r7, r6), 12(sp)
-	movw $0, r2
-
-	/* Call udivmoddi3 */
-#ifdef __PIC__
-	loadd	___udivmoddi3@cGOT(r12), (r1,r0)
-	jal	(r1,r0)
-#else
-	bal (ra), ___udivmoddi3
-#endif
-
-	/* If (neg) */
-	addd	$16, (sp)
-	cmpw $0, r10		/* Compare 0 with neg */
-	beq Lexit__
-	
-	/* Neg = -Neg */
-	xord (r9, r8), (r1, r0)	/* Xor low bits of ures with temp */
-	xord (r9, r8), (r3, r2)	/* Xor high bits of ures with temp */
-	addd $1, (r1, r0)	/* Add 1 to low bits of ures */
-	bcc Lexit__
-	addd $1, (r3, r2)	/* Add 1 to high bit of ures */
-
-Lexit__:
-#  ifdef __ID_SHARED_LIB__
-	pop	$2, r12
-#  endif
-	popret $4, r7, ra
-#endif
-
-#ifdef L_lshrdi3
-	.text
-	.align 4
-	.globl ___lshrdi3
-
-___lshrdi3:
-	push	$3, r7
-
-	/* Load parameters from stack in this order */
-	movw r2, r6		/* Number of shifts */
-	loadd	6(sp), (r1, r0)	/* Low bits */
-	loadd	10(sp), (r3, r2)/* High bits */
-
-	xorw $-1, r6		/* Invert number of shifts */
-	addw $1, r6		/* Add 1 by number of shifts */
-
-	movw r6, r7		/* Copy number of shifts */
-
-	tbit $15, r6		/* Test if number is negative */
-	bfs L2			/* If negative jump to L2 */
-
-	movd (r1, r0), (r9, r8)	/* Copy low bits */
-
-	subw $32, r7		/* Calc how many bits will overflow */
-	/* Shift the temp low bit to the right to see the overflowing bits  */
-	lshd r7, (r9, r8)	
-
-	cmpw $32, r6		/* If number of shifts is higher than 31 */
-	blt L1			/* Shift by moving */
-
-	lshd r6, (r3, r2)	/* Shift high bits */
-	lshd r6, (r1, r0)	/* Shift low bits */
-	addd (r9, r8), (r3, r2)	/* Add overflow to the high bits */
-	popret	$3, r7		/* Return */
-
-L1:	movd $0, (r1, r0)	/* Reset low bit */
-	movd (r9, r8), (r3, r2)	/* Add the overflow from the low bit */
-	popret	$3, r7		/* Return */
-
-L2:	movd (r3, r2), (r9, r8)	/* Copy high bits */
-
-	addw $32, r7		/* Calc how many bits will overflow */
-	/* Shift the temp low bit to the left to see the overflowing bits  */
-	lshd r7, (r9, r8)	
-
-	cmpw $-32, r6		/* If number of shifts is lower than -31 */
-	bgt L3			/* Shift by moving */
-
-	lshd r6, (r1, r0)	/* Shift low bits */
-	lshd r6, (r3, r2)	/* Shift high bits */
-	addd (r9, r8), (r1, r0)	/* Add overflow to the low bits */
-	popret	$3, r7		/* Return */
-	
-L3:	movd $0, (r3, r2)	/* Reset the high bit */
-	movd (r9, r8), (r1, r0)	/* Add the overflow from the high bit */
-	popret	$3, r7		/* Return */
-#endif
-
-#ifdef L_moddi3
-	.text
-	.align 4
-	.globl ___moddi3
-
-___moddi3:
-	push	$4, r7, ra
-
-	/* Param #1 Long Long low bit first */
-	loadd	12(sp), (r1, r0)
-	loadd	16(sp), (r3, r2)
-
-	/* Param #2 Long Long low bit first */
-	loadd	20(sp), (r5, r4)
-	loadd	24(sp), (r7, r6)
-	
-	subd	$18, (sp)
-
-	/* Set neg to 0 */
-	storw $0, 16(sp)
-	
-	movd	$-1, (r9, r8) 	/* Temp set to FFFFFFFF */
-
-	/* Compare if param1 is greater than 0 */	
-	cmpw $0, r3
-	ble L4
-
-	/* Invert param1 and neg */
-	xord (r9, r8), (r1, r0)	/* Xor low bits of param 1 with temp */
-	xord (r9, r8), (r3, r2)	/* Xor high bits of param 1 with temp */
-	addd $1, (r1, r0)	/* Add 1 to low bits of param 1 */
-	storw $1, 16(sp)
-	bcc L4			/* If no carry occurred go to L4 */
-	addd $1, (r3, r2)	/* Add 1 to high bits of param 1 */
-
-L4:	stord (r1, r0), 0(sp)
-	stord (r3, r2), 4(sp)
-	
-	/* Compare if param2 is greater than 0 */	
-	cmpw $0, r7
-	ble L5
-
-	/* Invert param2 and neg */
-	xord (r9, r8), (r5, r4)	/* Xor low bits of param 2 with temp */
-	xord (r9, r8), (r7, r6)	/* Xor high bits of param 2 with temp */
-	addd $1, (r5, r4)	/* Add 1 to low bits of param 2 */
-	bcc L5			/* If no carry occurred go to L5 */
-	addd $1, (r7, r6)	/* Add 1 to high bits of param 2 */
-
-L5:	stord (r5, r4), 8(sp)
-	stord (r7, r6), 12(sp)
-	movw $1, r2
-
-	/* Call udivmoddi3 */
-#ifdef __PIC__
-	loadd	___udivmoddi3@cGOT(r12), (r1,r0)
-	jal	(r1,r0)
-#else
-	bal (ra), ___udivmoddi3
-#endif
-
-	/* If (neg) */
-	loadw 16(sp), r10	/* Load neg from stack */
-	addd	$18, (sp)
-	cmpw $0, r10		/* Compare 0 with neg */
-	beq	Lexit__
-	
-	/* Neg = -Neg */
-	xord (r9, r8), (r1, r0)	/* Xor low bits of ures with temp */
-	xord (r9, r8), (r3, r2)	/* Xor high bits of ures with temp */
-	addd $1, (r1, r0)	/* Add 1 to low bits of ures */
-	bcc	Lexit__
-	addd $1, (r3, r2)	/* Add 1 to high bit of ures */
-Lexit__:
-#  ifdef __ID_SHARED_LIB__
-	pop	$2, r12
-#  endif
-	popret	$4, r7, ra
-#endif
-
-#ifdef L_muldi3
-	.text
-	.align 4
-	.globl ___muldi3
-
-___muldi3:
-	push	$2, r13
-	push	$7, r7
-
-	/* Param #1 Long Long low bit first */
-	loadd   18(sp), (r1, r0)
-	loadd   22(sp), (r3, r2)
-
-	/* Param #2 Long Long low bit first */
-	loadd   26(sp), (r5, r4)
-	loadd   30(sp), (r7, r6)
-
-	/* Clear r13, r12 */	
-	movd $0, (r12)	
-	movd $0, (r13)
-
-	/* Set neg */
-	movw $0, r10
-
-	/* Compare if param1 is greater than 0 */	
-	cmpw $0, r3
-	ble L1
-
-	/* Invert param1 and neg */
-	movd $-1, (r9, r8) 	/* Temp set to FFFFFFFF */
-	xord (r9, r8), (r1, r0)	/* Xor low bits of param 1 with temp */
-	xord (r9, r8), (r3, r2)	/* Xor high bits of param 1 with temp */
-	addd $1, (r1, r0)	/* Add 1 to low bits of param 1 */
-	xorw $1, r10		/* Invert neg */
-	bcc L1			/* If no carry occurred go to L1 */
-	addd $1, (r3, r2)	/* Add 1 to high bits of param 1 */
-
-L1:	/* Compare if param2 is greater than 0 */	
-	cmpw $0, r7
-	ble L2	
-	
-	/* Invert param2 and neg */
-	movd $-1, (r9, r8)	/* Temp set to FFFFFFFF */
-	xord (r9, r8), (r5, r4)	/* Xor low bits of param 2 with temp */
-	xord (r9, r8), (r7, r6)	/* Xor high bits of param 2 with temp */
-	addd $1, (r5, r4)	/* Add 1 to low bits of param 2 */
-	xorw $1, r10		/* Invert neg */
-	bcc L2			/* If no carry occurred go to L2 */
-	addd $1, (r7, r6)	/* Add 1 to high bits of param 2 */
-	
-L2:	storw r10, 18(sp)	/* Store neg to stack so we can use r10 */
-
-	/* B*D */
-	/* Bl*Dl */
-	macuw r0, r4, (r12)	/* Multiply r0 and r4 and add to r12 */
-		
-	/* Bh*Dl */
-	movd $0, (r9, r8)	/* Clear r9, r8 */
-	macuw r1, r4, (r9, r8)	/* Multiply Bh*Dl and add result to (r9, r8) */
-	movw r9,  r10		/* Shift left: r9 to r10 */
-	lshd $16, (r9, r8)	/* Shift left: r8 to r9 */
-	movw $0, r11		/* Clear r11 */
-	addd (r9, r8), (r12)	/* Add (r9, r8) to r12 */
-	bcc L3			/* If no carry occurred go to L3 */
-	addd $1, (r13)		/* If carry occurred add 1 to r13 */
-
-L3:	addd (r11, r10), (r13)	/* Add (r11, r10) to r13 */
-		
-	/* Bl*Dh */
-	movd $0, (r9, r8)	/* Clear (r9, r8) */
-	macuw r0, r5, (r9, r8)	/* Multiply r0 and r5 and stor in (r9, r8) */
-	movw r9, r10		/* Shift left: r9 to r10 */
-	lshd $16, (r9, r8)	/* Shift left: r8 to r9 */
-	addd (r9, r8), (r12)	/* Add (r9, r8) to r12 */
-	bcc L4			/* If no carry occurred go to L4 */ 
-	addd $1, (r13)		/* If carry occurred add 1 to r13 */
-
-L4:	addd (r11, r10), (r13)	/* Add (r11, r10) to r13 */
-
-	/* Bh*Dh */
-	movd $0, (r9, r8)	/* Clear (r9, r8) */
-	macuw r1, r5, (r9, r8)	/* Multiply r1 and r5 and add to r13 */
-	addd (r9, r8), (r13)	/* Add (r9, r8) to result */
-
-	/* A*D */
-	/* Al*Dl */
-	movd $0, (r11, r10)	/* Clear (r11, r10) */
-	macuw r2, r4, (r11, r10)/* Multiply r2 and r4 and add to (r11, r10) */
-	
-	addd (r13), (r11, r10)	/* Copy r13 to (r11, r10) */
-
-	/* Al*Dh */
-	movd $0, (r9, r8)	/* Clear (r9, r8) */
-	macuw r2, r5, (r9, r8)	/* Multiply r2 and r5 and add to (r9, r8) */
-	addw r8, r11		/* Add r8 to r11 */
-	
-	/* Ah*Dl */
-	muluw r3, (r5, r4)	/* Multiply r3 and r4 and stor in (r5, r4) */
-	addw r4, r11		/* Add r4 to r11 */
-
-	/* B*C */
-	/* Bl*Cl */
-	movd $0, (r9, r8)	/* Clear (r9, r8) */
-	macuw r0, r6, (r9, r8)	/* Multiply r0 and r6 and add to (r9, r8) */
-	addd (r9, r8), (r11, r10)/* Add (r9, r8) to result */
-
-	/* Bl*Ch */
-	movd $0, (r9, r8)	/* Clear (r9, r8) */
-	macuw r0, r7, (r9, r8)	/* Multiply r0 and r7 and add to (r9, r8) */
-	addw r8, r11		/* Add r8 to r11 */
-
-	loadw 18(sp), r8	/* Load neg from stack */
-
-	/* Bh*Cl */
-	muluw r1, (r7, r6)	/* Multiply r1 and r6 and stor in (r7, r6) */
-	addw r6, r11		/* Add r6 to r11 */
-
-E1:	movd (r11, r10), (r3, r2)
-	movd (r12), (r1, r0)	
-
-	/* If (neg) */
-	cmpw $0, r8		/* Compare 0 with neg */
-	beq	Lexit__
-	
-	/* Neg = -Neg */
-	movd $-1, (r9, r8) 	/* Temp set to FFFFFFFF */
-	xord (r9, r8), (r1, r0)	/* Xor low bits of result with temp */
-	xord (r9, r8), (r3, r2) /* Xor high bits of result with temp */
-	addd $1, (r1, r0)	/* Add 1 to low bits of result */
-	bcc	Lexit__
-	addd $1, (r3, r2)	/* Add 1 to high bit of result */
-Lexit__:
-	pop	$7, r7
-	popret	$2, r13
-#endif
-
-#ifdef L_negdi2
-	.text
-	.align 4
-	.globl ___negdi2
-
-___negdi2:
-	/* Load parameter from the registers in this order */
-	loadd 0(sp), (r1, r0)
-	loadd 4(sp), (r3, r2)
-	
-	movd $-1, (r6, r5)	/* Set temp to FFFFFFFF */
-	xord (r6, r5), (r1, r0)	/* Xor low bits with temp */
-	xord (r6, r5), (r3, r2)	/* Xor high bits with temp */
-	addd $1, (r1, r0)	/* Add one */
-	jcc (ra)
-	addd $1, (r3, r2)	/* Add the carry to the high bits */
-	jump (ra)
-#endif
-
-#ifdef L_udivdi3
-	.text
-	.align 4
-	.globl ___udivdi3
-
-___udivdi3:
-	movw $0, r2
-	br ___udivmoddi3
-#endif
-
-#ifdef L_udivmoddi3
-	.text
-	.align 4
-	.globl ___udivmoddi3
-
-___udivmoddi3:
-	push	$2, r13
-	push	$7, r7
-
-	/* Param #1 Long Long low bit first */
-	loadd	18(sp), (r1, r0)
-	storw	r2, 18(sp)	/* Store modulo on stack */
-	loadd	22(sp), (r3, r2)
-
-	/* Param #2 Long Long low bit first */
-	loadd	26(sp), (r5, r4)
-	loadd	30(sp), (r7, r6)
-
-	/* Set ures to 0 */
-	movd $0, (r13)
-	movd $0, (r12)
-	
-	cmpd (r12), (r5, r4)
-	beq LE
-
-L5:	movd $1, (r9, r8)	/* Store 1 in low bits from bit */
-	movd $0, (r11, r10)	/* Store 0 in high bits from bit */
-	
-L6:	/* While (den < num && (!den & (1LL<<63))) */
-	/* Compare high bits from param 1 and param 2 */
-	cmpd (r7, r6), (r3, r2)	
-	bhi L10			/* If param 2 is greater go to L10 */
-	bne L8			/* If param 1 is greater go to L8 */
-	cmpd (r5, r4), (r1, r0)	/* Compare low bits from param 1 and param 2 */
-	/*  If param 2 is greater or the same go to L1 */
-	bhs L10			 
-
-L8:	/* Check if most significant bit of param 2 is set */
-	tbit $15, r7		
-	bfs L10			/* If PSR is set go to L10 */
-
-	/* Shift bit */
-	lshd $1, (r11, r10)	/* Shift left: high bits of bit */ 
-	/* Check if most significant bit of bit is set */
-	tbit $15, r9		
-	lshd $1, (r9, r8)	/* Shift left: low bits of bit */
-	bfs L28			/* If PSR is set go to L28 */
-
-L9:	/* Shift b */
-	lshd $1, (r7, r6)	/* Shift left: high bits of param 2 */
-	/* Check if most significant bit of param 2 is set */
-	tbit $15, r5		
-	lshd $1, (r5, r4)	/* Shift left: low bits of param 2 */
-	bfc L6			/* If PSR is set go to L6 */
-	addw $1, r6		/* Add 1 to the highest bits of b */
-	br L6			/* Go to L6 */
-	
-L10:	/* While (bit) */
-	cmpd $0, (r11, r10)	
-	bne L11
-	cmpd $0, (r9, r8)
-	beq E1
-
-L11:	/* If (num >= den) */
-	cmpd (r3, r2), (r7, r6)	/* Compare high bits of param 1 and param 2 */
-	blo L15			/* If param 1 lower than param 2 go to L15 */
-	bne L12			/* If not equal go to L12 */	
-	cmpd (r1, r0), (r5, r4)	/* Compare low bits of param 1 and param 2 */
-	blo L15			/* If param 1 lower than param 2 go to L15 */
-
-L12:	/* Ures |= bit */
-	ord (r11, r10), (r13)
-	ord (r9, r8), (r12)	
-
-	/* Num -= den */
-	subd (r7, r6), (r3, r2) /* Subtract highest 32 bits from each other */
-	subd (r5, r4), (r1, r0)	/* Subtract lowest 32 bits from each other */
-	bcc L15			/* If no carry occurred go to L15 */
-	subd $1, (r3, r2)	/* Subtract the carry */
-	
-L15:	/* Shift bit to the right */
-	lshd $-1, (r9, r8)	/* Shift right: low bits of bit */
-	/* Check if least significant bit of high bits is set */
-	tbit $0, r10		
-	lshd $-1, (r11, r10)	/* Shift right: high bits of bit */
-	bfs L18			/* If PSR is set go to L18 */
-
-L17:	/* Shift param#2 to the right */
-	lshd $-1, (r5, r4)	/* Shift right: low bits of param 2 */
-	/* Check if least significant bit of high bits is set */
-	tbit $0, r6		
-	lshd $-1, (r7, r6)	/* Shift right: high bits of param 2 */
-	bfc L10			/* If PSR is not set go to L10 */
-	/* Or with 0x8000 to set most significant bit */
-	orw $32768, r5		
-	br L10			/* Go to L10 */
-
-L18:	/* Or with 0x8000 to set most significant bit */
-	orw $32768, r9		
-	br L17
-
-L28: 	/* Left shift bit */
-	addw $1, r10		/* Add 1 to highest bits of bit */
-	br L9			/* Go to L9 */
-
-LE:	cmpd (r12), (r7, r6)
-	bne L5
-	excp dvz
-	br	Lexit__
-
-E1:	loadw	18(sp), r4
-	cmpw $0, r4
-	bne	Lexit__
-
-	/* Return result */
-	movd (r12), (r1, r0)
-	movd (r13), (r3, r2)
-Lexit__:
-	pop	$7, r7
-	popret	$2, r13
-#endif
-
-#ifdef L_umoddi3
-	.text
-	.align 4
-	.globl ___umoddi3
-
-___umoddi3:
-	movw $1, r2
-	br ___udivmoddi3
-#endif
-
diff --git a/libgcc/config/cr16/t-cr16 b/libgcc/config/cr16/t-cr16
deleted file mode 100644
index 1e375d2..0000000
--- a/libgcc/config/cr16/t-cr16
+++ /dev/null
@@ -1,29 +0,0 @@
-# Makefile fragment for building LIBGCC for the Renesas CR16 target.
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
-#
-# This file is part of GCC.
-#
-# GCC 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.
-#
-# GCC 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.
-#
-# You should have received a copy of the  GNU General Public
-# License along with GCC; see the file COPYING3.  If not see
-# <http://www.gnu.org/licenses/>.
-
-LIB1ASMSRC = cr16/lib1funcs.S
-LIB1ASMFUNCS =  _mulsi3 _lshrdi3 _muldi3 _divdi3 _udivdi3 _udivmoddi3 \
-                _umoddi3 _moddi3
-
-LIB2ADD = $(srcdir)/config/cr16/divmodhi3.c  \
-	  $(srcdir)/udivmodsi4.c \
-	  $(srcdir)/udivmod.c   \
-	  $(srcdir)/divmod.c
-
-LIB2ADDEH = $(srcdir)/config/cr16/unwind-cr16.c 
diff --git a/libgcc/config/cr16/t-crtlibid b/libgcc/config/cr16/t-crtlibid
deleted file mode 100644
index 86cc5c6..0000000
--- a/libgcc/config/cr16/t-crtlibid
+++ /dev/null
@@ -1,22 +0,0 @@
-# Makefile fragment for building LIBGCC for the Renesas CR16 target.
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
-#
-# This file is part of GCC.
-#
-# GCC 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.
-#
-# GCC 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.
-#
-# You should have received a copy of the  GNU General Public
-# License along with GCC; see the file COPYING3.  If not see
-# <http://www.gnu.org/licenses/>.
-
-# Assemble startup files.
-crtlibid.o: $(srcdir)/config/cr16/crtlibid.S
-	$(gcc_compile) -c -x assembler-with-cpp $<
diff --git a/libgcc/config/cr16/unwind-cr16.c b/libgcc/config/cr16/unwind-cr16.c
deleted file mode 100644
index 8625da8..0000000
--- a/libgcc/config/cr16/unwind-cr16.c
+++ /dev/null
@@ -1,1682 +0,0 @@
-/* DWARF2 exception handling and frame unwind runtime interface routines.
-   Copyright (C) 1997-2022 Free Software Foundation, Inc.
-
-   This file is part of GCC.
-
-   GCC 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.
-
-   GCC 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/>.  */
-
-#include "tconfig.h"
-#include "tsystem.h"
-#include "coretypes.h"
-#include "tm.h"
-#include "dwarf2.h"
-#include "unwind.h"
-#ifdef __USING_SJLJ_EXCEPTIONS__
-# define NO_SIZE_OF_ENCODED_VALUE
-#endif
-#include "unwind-pe.h"
-#include "unwind-dw2-fde.h"
-#include "gthr.h"
-#include "unwind-dw2.h"
-
-#ifdef HAVE_SYS_SDT_H
-#include <sys/sdt.h>
-#endif
-
-#ifndef __USING_SJLJ_EXCEPTIONS__
-
-#ifndef __LIBGCC_STACK_GROWS_DOWNWARD__
-#define __LIBGCC_STACK_GROWS_DOWNWARD__ 0
-#else
-#undef __LIBGCC_STACK_GROWS_DOWNWARD__
-#define __LIBGCC_STACK_GROWS_DOWNWARD__ 1
-#endif
-
-/* Dwarf frame registers used for pre gcc 3.0 compiled glibc.  */
-#ifndef PRE_GCC3_DWARF_FRAME_REGISTERS
-#define PRE_GCC3_DWARF_FRAME_REGISTERS __LIBGCC_DWARF_FRAME_REGISTERS__
-#endif
-
-#ifndef DWARF_REG_TO_UNWIND_COLUMN
-#define DWARF_REG_TO_UNWIND_COLUMN(REGNO) (REGNO)
-#endif
-
-#ifdef REG_VALUE_IN_UNWIND_CONTEXT
-typedef _Unwind_Word _Unwind_Context_Reg_Val;
-
-#ifndef ASSUME_EXTENDED_UNWIND_CONTEXT
-#define ASSUME_EXTENDED_UNWIND_CONTEXT 1
-#endif
-
-static inline _Unwind_Word
-_Unwind_Get_Unwind_Word (_Unwind_Context_Reg_Val val)
-{
-  return val;
-}
-
-static inline _Unwind_Context_Reg_Val
-_Unwind_Get_Unwind_Context_Reg_Val (_Unwind_Word val)
-{
-  return val;
-}
-#else
-typedef void *_Unwind_Context_Reg_Val;
-
-static inline _Unwind_Word
-_Unwind_Get_Unwind_Word (_Unwind_Context_Reg_Val val)
-{
-  return (_Unwind_Word) (_Unwind_Internal_Ptr) val;
-}
-
-static inline _Unwind_Context_Reg_Val
-_Unwind_Get_Unwind_Context_Reg_Val (_Unwind_Word val)
-{
-  return (_Unwind_Context_Reg_Val) (_Unwind_Internal_Ptr) val;
-}
-#endif
-
-#ifndef ASSUME_EXTENDED_UNWIND_CONTEXT
-#define ASSUME_EXTENDED_UNWIND_CONTEXT 0
-#endif
-
-/* This is the register and unwind state for a particular frame.  This
-   provides the information necessary to unwind up past a frame and return
-   to its caller.  */
-struct _Unwind_Context
-{
-  _Unwind_Context_Reg_Val reg[__LIBGCC_DWARF_FRAME_REGISTERS__+1];
-  void *cfa;
-  void *ra;
-  void *lsda;
-  struct dwarf_eh_bases bases;
-  /* Signal frame context.  */
-#define SIGNAL_FRAME_BIT ((~(_Unwind_Word) 0 >> 1) + 1)
-  /* Context which has version/args_size/by_value fields.  */
-#define EXTENDED_CONTEXT_BIT ((~(_Unwind_Word) 0 >> 2) + 1)
-  _Unwind_Word flags;
-  /* 0 for now, can be increased when further fields are added to
-     struct _Unwind_Context.  */
-  _Unwind_Word version;
-  _Unwind_Word args_size;
-  char by_value[__LIBGCC_DWARF_FRAME_REGISTERS__+1];
-};
-
-/* Byte size of every register managed by these routines.  */
-static unsigned char dwarf_reg_size_table[__LIBGCC_DWARF_FRAME_REGISTERS__+1];
-
-
-/* Read unaligned data from the instruction buffer.  */
-
-union unaligned
-{
-  void *p;
-  unsigned u2 __attribute__ ((mode (HI)));
-  unsigned u4 __attribute__ ((mode (SI)));
-  unsigned u8 __attribute__ ((mode (DI)));
-  signed s2 __attribute__ ((mode (HI)));
-  signed s4 __attribute__ ((mode (SI)));
-  signed s8 __attribute__ ((mode (DI)));
-} __attribute__ ((packed));
-
-static void uw_update_context (struct _Unwind_Context *, _Unwind_FrameState *);
-static _Unwind_Reason_Code uw_frame_state_for (struct _Unwind_Context *,
-					       _Unwind_FrameState *);
-
-static inline void *
-read_pointer (const void *p) { const union unaligned *up = p; return up->p; }
-
-static inline int
-read_1u (const void *p) { return *(const unsigned char *) p; }
-
-static inline int
-read_1s (const void *p) { return *(const signed char *) p; }
-
-static inline int
-read_2u (const void *p) { const union unaligned *up = p; return up->u2; }
-
-static inline int
-read_2s (const void *p) { const union unaligned *up = p; return up->s2; }
-
-static inline unsigned int
-read_4u (const void *p) { const union unaligned *up = p; return up->u4; }
-
-static inline int
-read_4s (const void *p) { const union unaligned *up = p; return up->s4; }
-
-static inline unsigned long
-read_8u (const void *p) { const union unaligned *up = p; return up->u8; }
-
-static inline unsigned long
-read_8s (const void *p) { const union unaligned *up = p; return up->s8; }
-
-static inline _Unwind_Word
-_Unwind_IsSignalFrame (struct _Unwind_Context *context)
-{
-  return (context->flags & SIGNAL_FRAME_BIT) ? 1 : 0;
-}
-
-static inline void
-_Unwind_SetSignalFrame (struct _Unwind_Context *context, int val)
-{
-  if (val)
-    context->flags |= SIGNAL_FRAME_BIT;
-  else
-    context->flags &= ~SIGNAL_FRAME_BIT;
-}
-
-static inline _Unwind_Word
-_Unwind_IsExtendedContext (struct _Unwind_Context *context)
-{
-  return (ASSUME_EXTENDED_UNWIND_CONTEXT
-	  || (context->flags & EXTENDED_CONTEXT_BIT));
-}
-
-/* Get the value of register INDEX as saved in CONTEXT.  */
-
-inline _Unwind_Word
-_Unwind_GetGR (struct _Unwind_Context *context, int index)
-{
-  int size;
-  _Unwind_Context_Reg_Val val;
-
-#ifdef DWARF_ZERO_REG
-  if (index == DWARF_ZERO_REG)
-    return 0;
-#endif
-
-  index = DWARF_REG_TO_UNWIND_COLUMN (index);
-  gcc_assert (index < (int) sizeof(dwarf_reg_size_table));
-  size = dwarf_reg_size_table[index];
-  val = context->reg[index];
-
-  if (_Unwind_IsExtendedContext (context) && context->by_value[index])
-    return _Unwind_Get_Unwind_Word (val);
-
-  /* This will segfault if the register hasn't been saved.  */
-  if (size == sizeof(_Unwind_Ptr))
-    return * (_Unwind_Ptr *) (_Unwind_Internal_Ptr) val;
-  else
-    {
-      gcc_assert (size == sizeof(_Unwind_Word));
-      return * (_Unwind_Word *) (_Unwind_Internal_Ptr) val;
-    }
-}
-
-static inline void *
-_Unwind_GetPtr (struct _Unwind_Context *context, int index)
-{
-  return (void *)(_Unwind_Ptr) _Unwind_GetGR (context, index);
-}
-
-/* Get the value of the CFA as saved in CONTEXT.  */
-
-_Unwind_Word
-_Unwind_GetCFA (struct _Unwind_Context *context)
-{
-  return (_Unwind_Ptr) context->cfa;
-}
-
-/* Overwrite the saved value for register INDEX in CONTEXT with VAL.  */
-
-inline void
-_Unwind_SetGR (struct _Unwind_Context *context, int index, _Unwind_Word val)
-{
-  int size;
-  void *ptr;
-
-  index = DWARF_REG_TO_UNWIND_COLUMN (index);
-  gcc_assert (index < (int) sizeof(dwarf_reg_size_table));
-  size = dwarf_reg_size_table[index];
-
-  if (_Unwind_IsExtendedContext (context) && context->by_value[index])
-    {
-      context->reg[index] = _Unwind_Get_Unwind_Context_Reg_Val (val);
-      return;
-    }
-
-  ptr = (void *) (_Unwind_Internal_Ptr) context->reg[index];
-
-  if (size == sizeof(_Unwind_Ptr))
-    * (_Unwind_Ptr *) ptr = val;
-  else
-    {
-#if defined( __CR16C__ )
-      if (size == sizeof(_Unwind_Word))
-      * (_Unwind_Word *) ptr = val;
-      else
-	{
-	  typedef unsigned _CR16_Unwind_Word __attribute__((__mode__(__word__)));
-	  gcc_assert (index + 1  <  (int) sizeof(dwarf_reg_size_table));
-	  * (_CR16_Unwind_Word *) ptr = val & 0xffff ;  /* low 16-bit */
-	  ptr = context->reg[index + 1];
-	  * (_CR16_Unwind_Word *) ptr = val >> 16 ;  /* high 16-bit */
-	}
-#else
-      gcc_assert (size == sizeof(_Unwind_Word));
-      * (_Unwind_Word *) ptr = val;
-#endif	
-    }
-}
-
-/* Get the pointer to a register INDEX as saved in CONTEXT.  */
-
-static inline void *
-_Unwind_GetGRPtr (struct _Unwind_Context *context, int index)
-{
-  index = DWARF_REG_TO_UNWIND_COLUMN (index);
-  if (_Unwind_IsExtendedContext (context) && context->by_value[index])
-    return &context->reg[index];
-  return (void *) (_Unwind_Internal_Ptr) context->reg[index];
-}
-
-/* Set the pointer to a register INDEX as saved in CONTEXT.  */
-
-static inline void
-_Unwind_SetGRPtr (struct _Unwind_Context *context, int index, void *p)
-{
-  index = DWARF_REG_TO_UNWIND_COLUMN (index);
-  if (_Unwind_IsExtendedContext (context))
-    context->by_value[index] = 0;
-  context->reg[index] = (_Unwind_Context_Reg_Val) (_Unwind_Internal_Ptr) p;
-}
-
-/* Overwrite the saved value for register INDEX in CONTEXT with VAL.  */
-
-static inline void
-_Unwind_SetGRValue (struct _Unwind_Context *context, int index,
-		    _Unwind_Word val)
-{
-  index = DWARF_REG_TO_UNWIND_COLUMN (index);
-  gcc_assert (index < (int) sizeof(dwarf_reg_size_table));
-  gcc_assert (dwarf_reg_size_table[index] == sizeof (_Unwind_Context_Reg_Val));
-
-  context->by_value[index] = 1;
-  context->reg[index] = _Unwind_Get_Unwind_Context_Reg_Val (val);
-}
-
-/* Return nonzero if register INDEX is stored by value rather than
-   by reference.  */
-
-static inline int
-_Unwind_GRByValue (struct _Unwind_Context *context, int index)
-{
-  index = DWARF_REG_TO_UNWIND_COLUMN (index);
-  return context->by_value[index];
-}
-
-/* Retrieve the return address for CONTEXT.  */
-
-inline _Unwind_Ptr
-_Unwind_GetIP (struct _Unwind_Context *context)
-{
-  return (_Unwind_Ptr) context->ra;
-}
-
-/* Retrieve the return address and flag whether that IP is before
-   or after first not yet fully executed instruction.  */
-
-inline _Unwind_Ptr
-_Unwind_GetIPInfo (struct _Unwind_Context *context, int *ip_before_insn)
-{
-  *ip_before_insn = _Unwind_IsSignalFrame (context);
-  return (_Unwind_Ptr) context->ra;
-}
-
-/* Overwrite the return address for CONTEXT with VAL.  */
-
-inline void
-_Unwind_SetIP (struct _Unwind_Context *context, _Unwind_Ptr val)
-{
-  context->ra = (void *) val;
-}
-
-void *
-_Unwind_GetLanguageSpecificData (struct _Unwind_Context *context)
-{
-  return context->lsda;
-}
-
-_Unwind_Ptr
-_Unwind_GetRegionStart (struct _Unwind_Context *context)
-{
-  return (_Unwind_Ptr) context->bases.func;
-}
-
-void *
-_Unwind_FindEnclosingFunction (void *pc)
-{
-  struct dwarf_eh_bases bases;
-  const struct dwarf_fde *fde = _Unwind_Find_FDE (pc-1, &bases);
-  if (fde)
-    return bases.func;
-  else
-    return NULL;
-}
-
-_Unwind_Ptr
-_Unwind_GetDataRelBase (struct _Unwind_Context *context)
-{
-  return (_Unwind_Ptr) context->bases.dbase;
-}
-
-_Unwind_Ptr
-_Unwind_GetTextRelBase (struct _Unwind_Context *context)
-{
-  return (_Unwind_Ptr) context->bases.tbase;
-}
-
-#include "md-unwind-support.h"
-
-/* Extract any interesting information from the CIE for the translation
-   unit F belongs to.  Return a pointer to the byte after the augmentation,
-   or NULL if we encountered an undecipherable augmentation.  */
-
-static const unsigned char *
-extract_cie_info (const struct dwarf_cie *cie, struct _Unwind_Context *context,
-		  _Unwind_FrameState *fs)
-{
-  const unsigned char *aug = cie->augmentation;
-  const unsigned char *p = aug + strlen ((const char *)aug) + 1;
-  const unsigned char *ret = NULL;
-  _uleb128_t utmp;
-  _sleb128_t stmp;
-
-  /* g++ v2 "eh" has pointer immediately following augmentation string,
-     so it must be handled first.  */
-  if (aug[0] == 'e' && aug[1] == 'h')
-    {
-      fs->eh_ptr = read_pointer (p);
-      p += sizeof (void *);
-      aug += 2;
-    }
-
-  /* After the augmentation resp. pointer for "eh" augmentation
-     follows for CIE version >= 4 address size byte and
-     segment size byte.  */
-  if (__builtin_expect (cie->version >= 4, 0))
-    {
-      if (p[0] != sizeof (void *) || p[1] != 0)
-	return NULL;
-      p += 2;
-    }
-  /* Immediately following this are the code and
-     data alignment and return address column.  */
-  p = read_uleb128 (p, &utmp);
-  fs->code_align = (_Unwind_Word)utmp;
-  p = read_sleb128 (p, &stmp);
-  fs->data_align = (_Unwind_Sword)stmp;
-  if (cie->version == 1)
-    fs->retaddr_column = *p++;
-  else
-    {
-      p = read_uleb128 (p, &utmp);
-      fs->retaddr_column = (_Unwind_Word)utmp;
-    }
-  fs->lsda_encoding = DW_EH_PE_omit;
-
-  /* If the augmentation starts with 'z', then a uleb128 immediately
-     follows containing the length of the augmentation field following
-     the size.  */
-  if (*aug == 'z')
-    {
-      p = read_uleb128 (p, &utmp);
-      ret = p + utmp;
-
-      fs->saw_z = 1;
-      ++aug;
-    }
-
-  /* Iterate over recognized augmentation subsequences.  */
-  while (*aug != '\0')
-    {
-      /* "L" indicates a byte showing how the LSDA pointer is encoded.  */
-      if (aug[0] == 'L')
-	{
-	  fs->lsda_encoding = *p++;
-	  aug += 1;
-	}
-
-      /* "R" indicates a byte indicating how FDE addresses are encoded.  */
-      else if (aug[0] == 'R')
-	{
-	  fs->fde_encoding = *p++;
-	  aug += 1;
-	}
-
-      /* "P" indicates a personality routine in the CIE augmentation.  */
-      else if (aug[0] == 'P')
-	{
-	  _Unwind_Ptr personality;
-
-	  p = read_encoded_value (context, *p, p + 1, &personality);
-	  fs->personality = (_Unwind_Personality_Fn) personality;
-	  aug += 1;
-	}
-
-      /* "S" indicates a signal frame.  */
-      else if (aug[0] == 'S')
-	{
-	  fs->signal_frame = 1;
-	  aug += 1;
-	}
-
-      /* Otherwise we have an unknown augmentation string.
-	 Bail unless we saw a 'z' prefix.  */
-      else
-	return ret;
-    }
-
-  return ret ? ret : p;
-}
-
-
-/* Decode a DW_OP stack program.  Return the top of stack.  Push INITIAL
-   onto the stack to start.  */
-
-static _Unwind_Word
-execute_stack_op (const unsigned char *op_ptr, const unsigned char *op_end,
-		  struct _Unwind_Context *context, _Unwind_Word initial)
-{
-  _Unwind_Word stack[64];	/* ??? Assume this is enough.  */
-  int stack_elt;
-
-  stack[0] = initial;
-  stack_elt = 1;
-
-  while (op_ptr < op_end)
-    {
-      enum dwarf_location_atom op = *op_ptr++;
-      _Unwind_Word result;
-      _uleb128_t reg, utmp;
-      _sleb128_t offset, stmp;
-
-      switch (op)
-	{
-	case DW_OP_lit0:
-	case DW_OP_lit1:
-	case DW_OP_lit2:
-	case DW_OP_lit3:
-	case DW_OP_lit4:
-	case DW_OP_lit5:
-	case DW_OP_lit6:
-	case DW_OP_lit7:
-	case DW_OP_lit8:
-	case DW_OP_lit9:
-	case DW_OP_lit10:
-	case DW_OP_lit11:
-	case DW_OP_lit12:
-	case DW_OP_lit13:
-	case DW_OP_lit14:
-	case DW_OP_lit15:
-	case DW_OP_lit16:
-	case DW_OP_lit17:
-	case DW_OP_lit18:
-	case DW_OP_lit19:
-	case DW_OP_lit20:
-	case DW_OP_lit21:
-	case DW_OP_lit22:
-	case DW_OP_lit23:
-	case DW_OP_lit24:
-	case DW_OP_lit25:
-	case DW_OP_lit26:
-	case DW_OP_lit27:
-	case DW_OP_lit28:
-	case DW_OP_lit29:
-	case DW_OP_lit30:
-	case DW_OP_lit31:
-	  result = op - DW_OP_lit0;
-	  break;
-
-	case DW_OP_addr:
-	  result = (_Unwind_Word) (_Unwind_Ptr) read_pointer (op_ptr);
-	  op_ptr += sizeof (void *);
-	  break;
-
-	case DW_OP_GNU_encoded_addr:
-	  {
-	    _Unwind_Ptr presult;
-	    op_ptr = read_encoded_value (context, *op_ptr, op_ptr+1, &presult);
-	    result = presult;
-	  }
-	  break;
-
-	case DW_OP_const1u:
-	  result = read_1u (op_ptr);
-	  op_ptr += 1;
-	  break;
-	case DW_OP_const1s:
-	  result = read_1s (op_ptr);
-	  op_ptr += 1;
-	  break;
-	case DW_OP_const2u:
-	  result = read_2u (op_ptr);
-	  op_ptr += 2;
-	  break;
-	case DW_OP_const2s:
-	  result = read_2s (op_ptr);
-	  op_ptr += 2;
-	  break;
-	case DW_OP_const4u:
-	  result = read_4u (op_ptr);
-	  op_ptr += 4;
-	  break;
-	case DW_OP_const4s:
-	  result = read_4s (op_ptr);
-	  op_ptr += 4;
-	  break;
-	case DW_OP_const8u:
-	  result = read_8u (op_ptr);
-	  op_ptr += 8;
-	  break;
-	case DW_OP_const8s:
-	  result = read_8s (op_ptr);
-	  op_ptr += 8;
-	  break;
-	case DW_OP_constu:
-	  op_ptr = read_uleb128 (op_ptr, &utmp);
-	  result = (_Unwind_Word)utmp;
-	  break;
-	case DW_OP_consts:
-	  op_ptr = read_sleb128 (op_ptr, &stmp);
-	  result = (_Unwind_Sword)stmp;
-	  break;
-
-	case DW_OP_reg0:
-	case DW_OP_reg1:
-	case DW_OP_reg2:
-	case DW_OP_reg3:
-	case DW_OP_reg4:
-	case DW_OP_reg5:
-	case DW_OP_reg6:
-	case DW_OP_reg7:
-	case DW_OP_reg8:
-	case DW_OP_reg9:
-	case DW_OP_reg10:
-	case DW_OP_reg11:
-	case DW_OP_reg12:
-	case DW_OP_reg13:
-	case DW_OP_reg14:
-	case DW_OP_reg15:
-	case DW_OP_reg16:
-	case DW_OP_reg17:
-	case DW_OP_reg18:
-	case DW_OP_reg19:
-	case DW_OP_reg20:
-	case DW_OP_reg21:
-	case DW_OP_reg22:
-	case DW_OP_reg23:
-	case DW_OP_reg24:
-	case DW_OP_reg25:
-	case DW_OP_reg26:
-	case DW_OP_reg27:
-	case DW_OP_reg28:
-	case DW_OP_reg29:
-	case DW_OP_reg30:
-	case DW_OP_reg31:
-	  result = _Unwind_GetGR (context, op - DW_OP_reg0);
-	  break;
-	case DW_OP_regx:
-	  op_ptr = read_uleb128 (op_ptr, &reg);
-	  result = _Unwind_GetGR (context, reg);
-	  break;
-
-	case DW_OP_breg0:
-	case DW_OP_breg1:
-	case DW_OP_breg2:
-	case DW_OP_breg3:
-	case DW_OP_breg4:
-	case DW_OP_breg5:
-	case DW_OP_breg6:
-	case DW_OP_breg7:
-	case DW_OP_breg8:
-	case DW_OP_breg9:
-	case DW_OP_breg10:
-	case DW_OP_breg11:
-	case DW_OP_breg12:
-	case DW_OP_breg13:
-	case DW_OP_breg14:
-	case DW_OP_breg15:
-	case DW_OP_breg16:
-	case DW_OP_breg17:
-	case DW_OP_breg18:
-	case DW_OP_breg19:
-	case DW_OP_breg20:
-	case DW_OP_breg21:
-	case DW_OP_breg22:
-	case DW_OP_breg23:
-	case DW_OP_breg24:
-	case DW_OP_breg25:
-	case DW_OP_breg26:
-	case DW_OP_breg27:
-	case DW_OP_breg28:
-	case DW_OP_breg29:
-	case DW_OP_breg30:
-	case DW_OP_breg31:
-	  op_ptr = read_sleb128 (op_ptr, &offset);
-	  result = _Unwind_GetGR (context, op - DW_OP_breg0) + offset;
-	  break;
-	case DW_OP_bregx:
-	  op_ptr = read_uleb128 (op_ptr, &reg);
-	  op_ptr = read_sleb128 (op_ptr, &offset);
-	  result = _Unwind_GetGR (context, reg) + (_Unwind_Word)offset;
-	  break;
-
-	case DW_OP_dup:
-	  gcc_assert (stack_elt);
-	  result = stack[stack_elt - 1];
-	  break;
-
-	case DW_OP_drop:
-	  gcc_assert (stack_elt);
-	  stack_elt -= 1;
-	  goto no_push;
-
-	case DW_OP_pick:
-	  offset = *op_ptr++;
-	  gcc_assert (offset < stack_elt - 1);
-	  result = stack[stack_elt - 1 - offset];
-	  break;
-
-	case DW_OP_over:
-	  gcc_assert (stack_elt >= 2);
-	  result = stack[stack_elt - 2];
-	  break;
-
-	case DW_OP_swap:
-	  {
-	    _Unwind_Word t;
-	    gcc_assert (stack_elt >= 2);
-	    t = stack[stack_elt - 1];
-	    stack[stack_elt - 1] = stack[stack_elt - 2];
-	    stack[stack_elt - 2] = t;
-	    goto no_push;
-	  }
-
-	case DW_OP_rot:
-	  {
-	    _Unwind_Word t1, t2, t3;
-
-	    gcc_assert (stack_elt >= 3);
-	    t1 = stack[stack_elt - 1];
-	    t2 = stack[stack_elt - 2];
-	    t3 = stack[stack_elt - 3];
-	    stack[stack_elt - 1] = t2;
-	    stack[stack_elt - 2] = t3;
-	    stack[stack_elt - 3] = t1;
-	    goto no_push;
-	  }
-
-	case DW_OP_deref:
-	case DW_OP_deref_size:
-	case DW_OP_abs:
-	case DW_OP_neg:
-	case DW_OP_not:
-	case DW_OP_plus_uconst:
-	  /* Unary operations.  */
-	  gcc_assert (stack_elt);
-	  stack_elt -= 1;
-
-	  result = stack[stack_elt];
-
-	  switch (op)
-	    {
-	    case DW_OP_deref:
-	      {
-		void *ptr = (void *) (_Unwind_Ptr) result;
-		result = (_Unwind_Ptr) read_pointer (ptr);
-	      }
-	      break;
-
-	    case DW_OP_deref_size:
-	      {
-		void *ptr = (void *) (_Unwind_Ptr) result;
-		switch (*op_ptr++)
-		  {
-		  case 1:
-		    result = read_1u (ptr);
-		    break;
-		  case 2:
-		    result = read_2u (ptr);
-		    break;
-		  case 4:
-		    result = read_4u (ptr);
-		    break;
-		  case 8:
-		    result = read_8u (ptr);
-		    break;
-		  default:
-		    gcc_unreachable ();
-		  }
-	      }
-	      break;
-
-	    case DW_OP_abs:
-	      if ((_Unwind_Sword) result < 0)
-		result = -result;
-	      break;
-	    case DW_OP_neg:
-	      result = -result;
-	      break;
-	    case DW_OP_not:
-	      result = ~result;
-	      break;
-	    case DW_OP_plus_uconst:
-	      op_ptr = read_uleb128 (op_ptr, &utmp);
-	      result += (_Unwind_Word)utmp;
-	      break;
-
-	    default:
-	      gcc_unreachable ();
-	    }
-	  break;
-
-	case DW_OP_and:
-	case DW_OP_div:
-	case DW_OP_minus:
-	case DW_OP_mod:
-	case DW_OP_mul:
-	case DW_OP_or:
-	case DW_OP_plus:
-	case DW_OP_shl:
-	case DW_OP_shr:
-	case DW_OP_shra:
-	case DW_OP_xor:
-	case DW_OP_le:
-	case DW_OP_ge:
-	case DW_OP_eq:
-	case DW_OP_lt:
-	case DW_OP_gt:
-	case DW_OP_ne:
-	  {
-	    /* Binary operations.  */
-	    _Unwind_Word first, second;
-	    gcc_assert (stack_elt >= 2);
-	    stack_elt -= 2;
-
-	    second = stack[stack_elt];
-	    first = stack[stack_elt + 1];
-
-	    switch (op)
-	      {
-	      case DW_OP_and:
-		result = second & first;
-		break;
-	      case DW_OP_div:
-		result = (_Unwind_Sword) second / (_Unwind_Sword) first;
-		break;
-	      case DW_OP_minus:
-		result = second - first;
-		break;
-	      case DW_OP_mod:
-		result = second % first;
-		break;
-	      case DW_OP_mul:
-		result = second * first;
-		break;
-	      case DW_OP_or:
-		result = second | first;
-		break;
-	      case DW_OP_plus:
-		result = second + first;
-		break;
-	      case DW_OP_shl:
-		result = second << first;
-		break;
-	      case DW_OP_shr:
-		result = second >> first;
-		break;
-	      case DW_OP_shra:
-		result = (_Unwind_Sword) second >> first;
-		break;
-	      case DW_OP_xor:
-		result = second ^ first;
-		break;
-	      case DW_OP_le:
-		result = (_Unwind_Sword) second <= (_Unwind_Sword) first;
-		break;
-	      case DW_OP_ge:
-		result = (_Unwind_Sword) second >= (_Unwind_Sword) first;
-		break;
-	      case DW_OP_eq:
-		result = (_Unwind_Sword) second == (_Unwind_Sword) first;
-		break;
-	      case DW_OP_lt:
-		result = (_Unwind_Sword) second < (_Unwind_Sword) first;
-		break;
-	      case DW_OP_gt:
-		result = (_Unwind_Sword) second > (_Unwind_Sword) first;
-		break;
-	      case DW_OP_ne:
-		result = (_Unwind_Sword) second != (_Unwind_Sword) first;
-		break;
-
-	      default:
-		gcc_unreachable ();
-	      }
-	  }
-	  break;
-
-	case DW_OP_skip:
-	  offset = read_2s (op_ptr);
-	  op_ptr += 2;
-	  op_ptr += offset;
-	  goto no_push;
-
-	case DW_OP_bra:
-	  gcc_assert (stack_elt);
-	  stack_elt -= 1;
-
-	  offset = read_2s (op_ptr);
-	  op_ptr += 2;
-	  if (stack[stack_elt] != 0)
-	    op_ptr += offset;
-	  goto no_push;
-
-	case DW_OP_nop:
-	  goto no_push;
-
-	default:
-	  gcc_unreachable ();
-	}
-
-      /* Most things push a result value.  */
-      gcc_assert ((size_t) stack_elt < sizeof(stack)/sizeof(*stack));
-      stack[stack_elt++] = result;
-    no_push:;
-    }
-
-  /* We were executing this program to get a value.  It should be
-     at top of stack.  */
-  gcc_assert (stack_elt);
-  stack_elt -= 1;
-  return stack[stack_elt];
-}
-
-
-/* Decode DWARF 2 call frame information. Takes pointers the
-   instruction sequence to decode, current register information and
-   CIE info, and the PC range to evaluate.  */
-
-static void
-execute_cfa_program (const unsigned char *insn_ptr,
-		     const unsigned char *insn_end,
-		     struct _Unwind_Context *context,
-		     _Unwind_FrameState *fs)
-{
-  struct frame_state_reg_info *unused_rs = NULL;
-
-  /* Don't allow remember/restore between CIE and FDE programs.  */
-  fs->regs.prev = NULL;
-
-  /* The comparison with the return address uses < rather than <= because
-     we are only interested in the effects of code before the call; for a
-     noreturn function, the return address may point to unrelated code with
-     a different stack configuration that we are not interested in.  We
-     assume that the call itself is unwind info-neutral; if not, or if
-     there are delay instructions that adjust the stack, these must be
-     reflected at the point immediately before the call insn.
-     In signal frames, return address is after last completed instruction,
-     so we add 1 to return address to make the comparison <=.  */
-  while (insn_ptr < insn_end
-	 && fs->pc < context->ra + _Unwind_IsSignalFrame (context))
-    {
-      unsigned char insn = *insn_ptr++;
-      _uleb128_t reg, utmp;
-      _sleb128_t offset, stmp;
-
-      if ((insn & 0xc0) == DW_CFA_advance_loc)
-	fs->pc += (insn & 0x3f) * fs->code_align;
-      else if ((insn & 0xc0) == DW_CFA_offset)
-	{
-	  reg = insn & 0x3f;
-	  insn_ptr = read_uleb128 (insn_ptr, &utmp);
-	  offset = (_Unwind_Sword) utmp * fs->data_align;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].how
-	    = REG_SAVED_OFFSET;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].loc.offset = offset;
-	}
-      else if ((insn & 0xc0) == DW_CFA_restore)
-	{
-	  reg = insn & 0x3f;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].how = REG_UNSAVED;
-	}
-      else switch (insn)
-	{
-	case DW_CFA_set_loc:
-	  {
-	    _Unwind_Ptr pc;
-
-	    insn_ptr = read_encoded_value (context, fs->fde_encoding,
-					   insn_ptr, &pc);
-	    fs->pc = (void *) pc;
-	  }
-	  break;
-
-	case DW_CFA_advance_loc1:
-	  fs->pc += read_1u (insn_ptr) * fs->code_align;
-	  insn_ptr += 1;
-	  break;
-	case DW_CFA_advance_loc2:
-	  fs->pc += read_2u (insn_ptr) * fs->code_align;
-	  insn_ptr += 2;
-	  break;
-	case DW_CFA_advance_loc4:
-	  fs->pc += read_4u (insn_ptr) * fs->code_align;
-	  insn_ptr += 4;
-	  break;
-
-	case DW_CFA_offset_extended:
-	  insn_ptr = read_uleb128 (insn_ptr, &reg);
-	  insn_ptr = read_uleb128 (insn_ptr, &utmp);
-	  offset = (_Unwind_Sword) utmp * fs->data_align;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].how
-	    = REG_SAVED_OFFSET;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].loc.offset = offset;
-	  break;
-
-	case DW_CFA_restore_extended:
-	  insn_ptr = read_uleb128 (insn_ptr, &reg);
-	  /* FIXME, this is wrong; the CIE might have said that the
-	     register was saved somewhere.  */
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN(reg)].how = REG_UNSAVED;
-	  break;
-
-	case DW_CFA_same_value:
-	  insn_ptr = read_uleb128 (insn_ptr, &reg);
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN(reg)].how = REG_UNSAVED;
-	  break;
-
-	case DW_CFA_undefined:
-	  insn_ptr = read_uleb128 (insn_ptr, &reg);
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN(reg)].how = REG_UNDEFINED;
-	  break;
-
-	case DW_CFA_nop:
-	  break;
-
-	case DW_CFA_register:
-	  {
-	    _uleb128_t reg2;
-	    insn_ptr = read_uleb128 (insn_ptr, &reg);
-	    insn_ptr = read_uleb128 (insn_ptr, &reg2);
-	    fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].how = REG_SAVED_REG;
-	    fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].loc.reg =
-	      (_Unwind_Word)reg2;
-	  }
-	  break;
-
-	case DW_CFA_remember_state:
-	  {
-	    struct frame_state_reg_info *new_rs;
-	    if (unused_rs)
-	      {
-		new_rs = unused_rs;
-		unused_rs = unused_rs->prev;
-	      }
-	    else
-	      new_rs = alloca (sizeof (struct frame_state_reg_info));
-
-	    *new_rs = fs->regs;
-	    fs->regs.prev = new_rs;
-	  }
-	  break;
-
-	case DW_CFA_restore_state:
-	  {
-	    struct frame_state_reg_info *old_rs = fs->regs.prev;
-	    fs->regs = *old_rs;
-	    old_rs->prev = unused_rs;
-	    unused_rs = old_rs;
-	  }
-	  break;
-
-	case DW_CFA_def_cfa:
-	  insn_ptr = read_uleb128 (insn_ptr, &utmp);
-	  fs->regs.cfa_reg = (_Unwind_Word)utmp;
-	  insn_ptr = read_uleb128 (insn_ptr, &utmp);
-	  fs->regs.cfa_offset = (_Unwind_Word)utmp;
-	  fs->regs.cfa_how = CFA_REG_OFFSET;
-	  break;
-
-	case DW_CFA_def_cfa_register:
-	  insn_ptr = read_uleb128 (insn_ptr, &utmp);
-	  fs->regs.cfa_reg = (_Unwind_Word)utmp;
-	  fs->regs.cfa_how = CFA_REG_OFFSET;
-	  break;
-
-	case DW_CFA_def_cfa_offset:
-	  insn_ptr = read_uleb128 (insn_ptr, &utmp);
-	  fs->regs.cfa_offset = utmp;
-	  /* cfa_how deliberately not set.  */
-	  break;
-
-	case DW_CFA_def_cfa_expression:
-	  fs->regs.cfa_exp = insn_ptr;
-	  fs->regs.cfa_how = CFA_EXP;
-	  insn_ptr = read_uleb128 (insn_ptr, &utmp);
-	  insn_ptr += utmp;
-	  break;
-
-	case DW_CFA_expression:
-	  insn_ptr = read_uleb128 (insn_ptr, &reg);
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].how = REG_SAVED_EXP;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].loc.exp = insn_ptr;
-	  insn_ptr = read_uleb128 (insn_ptr, &utmp);
-	  insn_ptr += utmp;
-	  break;
-
-	  /* Dwarf3.  */
-	case DW_CFA_offset_extended_sf:
-	  insn_ptr = read_uleb128 (insn_ptr, &reg);
-	  insn_ptr = read_sleb128 (insn_ptr, &stmp);
-	  offset = stmp * fs->data_align;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].how
-	    = REG_SAVED_OFFSET;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].loc.offset = offset;
-	  break;
-
-	case DW_CFA_def_cfa_sf:
-	  insn_ptr = read_uleb128 (insn_ptr, &utmp);
-	  fs->regs.cfa_reg = (_Unwind_Word)utmp;
-	  insn_ptr = read_sleb128 (insn_ptr, &stmp);
-	  fs->regs.cfa_offset = (_Unwind_Sword)stmp;
-	  fs->regs.cfa_how = CFA_REG_OFFSET;
-	  fs->regs.cfa_offset *= fs->data_align;
-	  break;
-
-	case DW_CFA_def_cfa_offset_sf:
-	  insn_ptr = read_sleb128 (insn_ptr, &stmp);
-	  fs->regs.cfa_offset = (_Unwind_Sword)stmp;
-	  fs->regs.cfa_offset *= fs->data_align;
-	  /* cfa_how deliberately not set.  */
-	  break;
-
-	case DW_CFA_val_offset:
-	  insn_ptr = read_uleb128 (insn_ptr, &reg);
-	  insn_ptr = read_uleb128 (insn_ptr, &utmp);
-	  offset = (_Unwind_Sword) utmp * fs->data_align;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].how
-	    = REG_SAVED_VAL_OFFSET;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].loc.offset = offset;
-	  break;
-
-	case DW_CFA_val_offset_sf:
-	  insn_ptr = read_uleb128 (insn_ptr, &reg);
-	  insn_ptr = read_sleb128 (insn_ptr, &stmp);
-	  offset = stmp * fs->data_align;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].how
-	    = REG_SAVED_VAL_OFFSET;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].loc.offset = offset;
-	  break;
-
-	case DW_CFA_val_expression:
-	  insn_ptr = read_uleb128 (insn_ptr, &reg);
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].how
-	    = REG_SAVED_VAL_EXP;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].loc.exp = insn_ptr;
-	  insn_ptr = read_uleb128 (insn_ptr, &utmp);
-	  insn_ptr += utmp;
-	  break;
-
-	case DW_CFA_GNU_window_save:
-	  /* ??? Hardcoded for SPARC register window configuration.  */
-	  for (reg = 16; reg < 32; ++reg)
-	    {
-	      fs->regs.reg[reg].how = REG_SAVED_OFFSET;
-	      fs->regs.reg[reg].loc.offset = (reg - 16) * sizeof (void *);
-	    }
-	  break;
-
-	case DW_CFA_GNU_args_size:
-	  insn_ptr = read_uleb128 (insn_ptr, &utmp);
-	  context->args_size = (_Unwind_Word)utmp;
-	  break;
-
-	case DW_CFA_GNU_negative_offset_extended:
-	  /* Obsoleted by DW_CFA_offset_extended_sf, but used by
-	     older PowerPC code.  */
-	  insn_ptr = read_uleb128 (insn_ptr, &reg);
-	  insn_ptr = read_uleb128 (insn_ptr, &utmp);
-	  offset = (_Unwind_Word) utmp * fs->data_align;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].how
-	    = REG_SAVED_OFFSET;
-	  fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (reg)].loc.offset = -offset;
-	  break;
-
-	default:
-	  gcc_unreachable ();
-	}
-    }
-}
-
-/* Given the _Unwind_Context CONTEXT for a stack frame, look up the FDE for
-   its caller and decode it into FS.  This function also sets the
-   args_size and lsda members of CONTEXT, as they are really information
-   about the caller's frame.  */
-
-static _Unwind_Reason_Code
-uw_frame_state_for (struct _Unwind_Context *context, _Unwind_FrameState *fs)
-{
-  const struct dwarf_fde *fde;
-  const struct dwarf_cie *cie;
-  const unsigned char *aug, *insn, *end;
-
-  memset (fs, 0, sizeof (*fs));
-  context->args_size = 0;
-  context->lsda = 0;
-
-  if (context->ra == 0)
-    return _URC_END_OF_STACK;
-
-  fde = _Unwind_Find_FDE (context->ra + _Unwind_IsSignalFrame (context) - 1,
-			  &context->bases);
-  if (fde == NULL)
-    {
-#ifdef MD_FALLBACK_FRAME_STATE_FOR
-      /* Couldn't find frame unwind info for this function.  Try a
-	 target-specific fallback mechanism.  This will necessarily
-	 not provide a personality routine or LSDA.  */
-      return MD_FALLBACK_FRAME_STATE_FOR (context, fs);
-#else
-      return _URC_END_OF_STACK;
-#endif
-    }
-
-  fs->pc = context->bases.func;
-
-  cie = get_cie (fde);
-  insn = extract_cie_info (cie, context, fs);
-  if (insn == NULL)
-    /* CIE contained unknown augmentation.  */
-    return _URC_FATAL_PHASE1_ERROR;
-
-  /* First decode all the insns in the CIE.  */
-  end = (const unsigned char *) next_fde ((const struct dwarf_fde *) cie);
-  execute_cfa_program (insn, end, context, fs);
-
-  /* Locate augmentation for the fde.  */
-  aug = (const unsigned char *) fde + sizeof (*fde);
-  aug += 2 * size_of_encoded_value (fs->fde_encoding);
-  insn = NULL;
-  if (fs->saw_z)
-    {
-      _uleb128_t i;
-      aug = read_uleb128 (aug, &i);
-      insn = aug + i;
-    }
-  if (fs->lsda_encoding != DW_EH_PE_omit)
-    {
-      _Unwind_Ptr lsda;
-
-      aug = read_encoded_value (context, fs->lsda_encoding, aug, &lsda);
-      context->lsda = (void *) lsda;
-    }
-
-  /* Then the insns in the FDE up to our target PC.  */
-  if (insn == NULL)
-    insn = aug;
-  end = (const unsigned char *) next_fde (fde);
-  execute_cfa_program (insn, end, context, fs);
-
-  return _URC_NO_REASON;
-}
-
-typedef struct frame_state
-{
-  void *cfa;
-  void *eh_ptr;
-  long cfa_offset;
-  long args_size;
-  long reg_or_offset[PRE_GCC3_DWARF_FRAME_REGISTERS+1];
-  unsigned short cfa_reg;
-  unsigned short retaddr_column;
-  char saved[PRE_GCC3_DWARF_FRAME_REGISTERS+1];
-} frame_state;
-
-struct frame_state * __frame_state_for (void *, struct frame_state *);
-
-/* Called from pre-G++ 3.0 __throw to find the registers to restore for
-   a given PC_TARGET.  The caller should allocate a local variable of
-   `struct frame_state' and pass its address to STATE_IN.  */
-
-struct frame_state *
-__frame_state_for (void *pc_target, struct frame_state *state_in)
-{
-  struct _Unwind_Context context;
-  _Unwind_FrameState fs;
-  int reg;
-
-  memset (&context, 0, sizeof (struct _Unwind_Context));
-  if (!ASSUME_EXTENDED_UNWIND_CONTEXT)
-    context.flags = EXTENDED_CONTEXT_BIT;
-  context.ra = pc_target + 1;
-
-  if (uw_frame_state_for (&context, &fs) != _URC_NO_REASON)
-    return 0;
-
-  /* We have no way to pass a location expression for the CFA to our
-     caller.  It wouldn't understand it anyway.  */
-  if (fs.regs.cfa_how == CFA_EXP)
-    return 0;
-
-  for (reg = 0; reg < PRE_GCC3_DWARF_FRAME_REGISTERS + 1; reg++)
-    {
-      state_in->saved[reg] = fs.regs.reg[reg].how;
-      switch (state_in->saved[reg])
-	{
-	case REG_SAVED_REG:
-	  state_in->reg_or_offset[reg] = fs.regs.reg[reg].loc.reg;
-	  break;
-	case REG_SAVED_OFFSET:
-	  state_in->reg_or_offset[reg] = fs.regs.reg[reg].loc.offset;
-	  break;
-	default:
-	  state_in->reg_or_offset[reg] = 0;
-	  break;
-	}
-    }
-
-  state_in->cfa_offset = fs.regs.cfa_offset;
-  state_in->cfa_reg = fs.regs.cfa_reg;
-  state_in->retaddr_column = fs.retaddr_column;
-  state_in->args_size = context.args_size;
-  state_in->eh_ptr = fs.eh_ptr;
-
-  return state_in;
-}
-
-typedef union { _Unwind_Ptr ptr; _Unwind_Word word; } _Unwind_SpTmp;
-
-static inline void
-_Unwind_SetSpColumn (struct _Unwind_Context *context, void *cfa,
-		     _Unwind_SpTmp *tmp_sp)
-{
-  int size = dwarf_reg_size_table[__builtin_dwarf_sp_column ()];
-
-  if (size == sizeof(_Unwind_Ptr))
-    tmp_sp->ptr = (_Unwind_Ptr) cfa;
-  else
-    {
-      gcc_assert (size == sizeof(_Unwind_Word));
-      tmp_sp->word = (_Unwind_Ptr) cfa;
-    }
-  _Unwind_SetGRPtr (context, __builtin_dwarf_sp_column (), tmp_sp);
-}
-
-static void
-uw_update_context_1 (struct _Unwind_Context *context, _Unwind_FrameState *fs)
-{
-  struct _Unwind_Context orig_context = *context;
-  void *cfa;
-  long i;
-
-#ifdef __LIBGCC_EH_RETURN_STACKADJ_RTX__
-  /* Special handling here: Many machines do not use a frame pointer,
-     and track the CFA only through offsets from the stack pointer from
-     one frame to the next.  In this case, the stack pointer is never
-     stored, so it has no saved address in the context.  What we do
-     have is the CFA from the previous stack frame.
-
-     In very special situations (such as unwind info for signal return),
-     there may be location expressions that use the stack pointer as well.
-
-     Do this conditionally for one frame.  This allows the unwind info
-     for one frame to save a copy of the stack pointer from the previous
-     frame, and be able to use much easier CFA mechanisms to do it.
-     Always zap the saved stack pointer value for the next frame; carrying
-     the value over from one frame to another doesn't make sense.  */
-
-  _Unwind_SpTmp tmp_sp;
-
-  if (!_Unwind_GetGRPtr (&orig_context, __builtin_dwarf_sp_column ()))
-    _Unwind_SetSpColumn (&orig_context, context->cfa, &tmp_sp);
-  _Unwind_SetGRPtr (context, __builtin_dwarf_sp_column (), NULL);
-#endif
-
-  /* Compute this frame's CFA.  */
-  switch (fs->regs.cfa_how)
-    {
-    case CFA_REG_OFFSET:
-      cfa = _Unwind_GetPtr (&orig_context, fs->regs.cfa_reg);
-      cfa += fs->regs.cfa_offset;
-      break;
-
-    case CFA_EXP:
-      {
-	const unsigned char *exp = fs->regs.cfa_exp;
-	_uleb128_t len;
-
-	exp = read_uleb128 (exp, &len);
-	cfa = (void *) (_Unwind_Ptr)
-	  execute_stack_op (exp, exp + len, &orig_context, 0);
-	break;
-      }
-
-    default:
-      gcc_unreachable ();
-    }
-  context->cfa = cfa;
-
-  /* Compute the addresses of all registers saved in this frame.  */
-  for (i = 0; i < __LIBGCC_DWARF_FRAME_REGISTERS__ + 1; ++i)
-    switch (fs->regs.reg[i].how)
-      {
-      case REG_UNSAVED:
-      case REG_UNDEFINED:
-	break;
-
-      case REG_SAVED_OFFSET:
-	_Unwind_SetGRPtr (context, i,
-			  (void *) (cfa + fs->regs.reg[i].loc.offset));
-	break;
-
-      case REG_SAVED_REG:
-	if (_Unwind_GRByValue (&orig_context, fs->regs.reg[i].loc.reg))
-	  _Unwind_SetGRValue (context, i,
-			      _Unwind_GetGR (&orig_context,
-					     fs->regs.reg[i].loc.reg));
-	else
-	  _Unwind_SetGRPtr (context, i,
-			    _Unwind_GetGRPtr (&orig_context,
-					      fs->regs.reg[i].loc.reg));
-	break;
-
-      case REG_SAVED_EXP:
-	{
-	  const unsigned char *exp = fs->regs.reg[i].loc.exp;
-	  _uleb128_t len;
-	  _Unwind_Ptr val;
-
-	  exp = read_uleb128 (exp, &len);
-	  val = execute_stack_op (exp, exp + len, &orig_context,
-				  (_Unwind_Ptr) cfa);
-	  _Unwind_SetGRPtr (context, i, (void *) val);
-	}
-	break;
-
-      case REG_SAVED_VAL_OFFSET:
-	_Unwind_SetGRValue (context, i,
-			    (_Unwind_Internal_Ptr)
-			    (cfa + fs->regs.reg[i].loc.offset));
-	break;
-
-      case REG_SAVED_VAL_EXP:
-	{
-	  const unsigned char *exp = fs->regs.reg[i].loc.exp;
-	  _uleb128_t len;
-	  _Unwind_Ptr val;
-
-	  exp = read_uleb128 (exp, &len);
-	  val = execute_stack_op (exp, exp + len, &orig_context,
-				  (_Unwind_Ptr) cfa);
-	  _Unwind_SetGRValue (context, i, val);
-	}
-	break;
-      }
-
-  _Unwind_SetSignalFrame (context, fs->signal_frame);
-
-#ifdef MD_FROB_UPDATE_CONTEXT
-  MD_FROB_UPDATE_CONTEXT (context, fs);
-#endif
-}
-
-/* CONTEXT describes the unwind state for a frame, and FS describes the FDE
-   of its caller.  Update CONTEXT to refer to the caller as well.  Note
-   that the args_size and lsda members are not updated here, but later in
-   uw_frame_state_for.  */
-
-static void
-uw_update_context (struct _Unwind_Context *context, _Unwind_FrameState *fs)
-{
-  uw_update_context_1 (context, fs);
-
-  /* In general this unwinder doesn't make any distinction between
-     undefined and same_value rule.  Call-saved registers are assumed
-     to have same_value rule by default and explicit undefined
-     rule is handled like same_value.  The only exception is
-     DW_CFA_undefined on retaddr_column which is supposed to
-     mark outermost frame in DWARF 3.  */
-  if (fs->regs.reg[DWARF_REG_TO_UNWIND_COLUMN (fs->retaddr_column)].how
-      == REG_UNDEFINED)
-    /* uw_frame_state_for uses context->ra == 0 check to find outermost
-       stack frame.  */
-    context->ra = 0;
-  else
-    /* Compute the return address now, since the return address column
-       can change from frame to frame.  */
-    context->ra = __builtin_extract_return_addr
-      (_Unwind_GetPtr (context, fs->retaddr_column));
-#if defined( __CR16C__ )
-  context->ra = (void*)( ( (unsigned)context->ra ) << 1 ) ;
-#endif
-}
-
-static void
-uw_advance_context (struct _Unwind_Context *context, _Unwind_FrameState *fs)
-{
-  uw_update_context (context, fs);
-}
-
-/* Fill in CONTEXT for top-of-stack.  The only valid registers at this
-   level will be the return address and the CFA.  */
-
-#define uw_init_context(CONTEXT)					   \
-  do									   \
-    {									   \
-      /* Do any necessary initialization to access arbitrary stack frames. \
-	 On the SPARC, this means flushing the register windows.  */	   \
-      __builtin_unwind_init ();						   \
-      uw_init_context_1 (CONTEXT, __builtin_dwarf_cfa (),		   \
-			 __builtin_return_address (0));			   \
-    }									   \
-  while (0)
-
-static inline void
-init_dwarf_reg_size_table (void)
-{
-  __builtin_init_dwarf_reg_size_table (dwarf_reg_size_table);
-}
-
-static void __attribute__((noinline))
-uw_init_context_1 (struct _Unwind_Context *context,
-		   void *outer_cfa, void *outer_ra)
-{
-  void *ra = __builtin_extract_return_addr (__builtin_return_address (0));
-  _Unwind_FrameState fs;
-  _Unwind_SpTmp sp_slot;
-  _Unwind_Reason_Code code;
-
-  memset (context, 0, sizeof (struct _Unwind_Context));
-  context->ra = ra;
-  if (!ASSUME_EXTENDED_UNWIND_CONTEXT)
-    context->flags = EXTENDED_CONTEXT_BIT;
-
-  code = uw_frame_state_for (context, &fs);
-  gcc_assert (code == _URC_NO_REASON);
-
-#if __GTHREADS
-  {
-    static __gthread_once_t once_regsizes = __GTHREAD_ONCE_INIT;
-    if (__gthread_once (&once_regsizes, init_dwarf_reg_size_table) != 0
-	&& dwarf_reg_size_table[0] == 0)
-      init_dwarf_reg_size_table ();
-  }
-#else
-  if (dwarf_reg_size_table[0] == 0)
-    init_dwarf_reg_size_table ();
-#endif
-
-  /* Force the frame state to use the known cfa value.  */
-  _Unwind_SetSpColumn (context, outer_cfa, &sp_slot);
-  fs.regs.cfa_how = CFA_REG_OFFSET;
-  fs.regs.cfa_reg = __builtin_dwarf_sp_column ();
-#if !defined( __CR16C__ )
-  fs.regs.cfa_offset = 0;
-#else
-  fs.regs.cfa_offset -= context->args_size ;
-#endif
-
-  uw_update_context_1 (context, &fs);
-
-  /* If the return address column was saved in a register in the
-     initialization context, then we can't see it in the given
-     call frame data.  So have the initialization context tell us.  */
-  context->ra = __builtin_extract_return_addr (outer_ra);
-}
-
-static void _Unwind_DebugHook (void *, void *)
-  __attribute__ ((__noinline__, __used__, __noclone__));
-
-/* This function is called during unwinding.  It is intended as a hook
-   for a debugger to intercept exceptions.  CFA is the CFA of the
-   target frame.  HANDLER is the PC to which control will be
-   transferred.  */
-static void
-_Unwind_DebugHook (void *cfa __attribute__ ((__unused__)),
-		   void *handler __attribute__ ((__unused__)))
-{
-  /* We only want to use stap probes starting with v3.  Earlier
-     versions added too much startup cost.  */
-#if defined (HAVE_SYS_SDT_H) && defined (STAP_PROBE2) && _SDT_NOTE_TYPE >= 3
-  STAP_PROBE2 (libgcc, unwind, cfa, handler);
-#else
-  asm ("");
-#endif
-}
-
-/* Install TARGET into CURRENT so that we can return to it.  This is a
-   macro because __builtin_eh_return must be invoked in the context of
-   our caller.  */
-#if defined( __CR16C__ )
-
-#define uw_install_context(CURRENT, TARGET, FRAMES)			\
-  do									\
-    {									\
-      long offset = uw_install_context_1 ((CURRENT), (TARGET));		\
-      void *handler = __builtin_frob_return_addr ((TARGET)->ra);	\
-      handler = (void*)( ( (unsigned)handler ) >> 1 ) ;                 \
-      _Unwind_DebugHook ((TARGET)->cfa, handler);			\
-      __builtin_eh_return (offset, handler);				\
-    }									\
-  while (0)
-#else
-#define uw_install_context(CURRENT, TARGET, FRAMES)                     \
-  do                                                                    \
-    {                                                                   \
-      long offset = uw_install_context_1 ((CURRENT), (TARGET));         \
-      void *handler = __builtin_frob_return_addr ((TARGET)->ra);        \
-      _Unwind_DebugHook ((TARGET)->cfa, handler);                       \
-      __builtin_eh_return (offset, handler);                            \
-    }                                                                   \
-  while (0)
-#endif  /* __CR16C__ */
-
-static long
-uw_install_context_1 (struct _Unwind_Context *current,
-		      struct _Unwind_Context *target)
-{
-  long i;
-  _Unwind_SpTmp sp_slot;
-
-  /* If the target frame does not have a saved stack pointer,
-     then set up the target's CFA.  */
-  if (!_Unwind_GetGRPtr (target, __builtin_dwarf_sp_column ()))
-    _Unwind_SetSpColumn (target, target->cfa, &sp_slot);
-
-  for (i = 0; i < __LIBGCC_DWARF_FRAME_REGISTERS__; ++i)
-    {
-      void *c = (void *) (_Unwind_Internal_Ptr) current->reg[i];
-      void *t = (void *) (_Unwind_Internal_Ptr)target->reg[i];
-
-      gcc_assert (current->by_value[i] == 0);
-      if (target->by_value[i] && c)
-	{
-	  _Unwind_Word w;
-	  _Unwind_Ptr p;
-	  if (dwarf_reg_size_table[i] == sizeof (_Unwind_Word))
-	    {
-	      w = (_Unwind_Internal_Ptr) t;
-	      memcpy (c, &w, sizeof (_Unwind_Word));
-	    }
-	  else
-	    {
-	      gcc_assert (dwarf_reg_size_table[i] == sizeof (_Unwind_Ptr));
-	      p = (_Unwind_Internal_Ptr) t;
-	      memcpy (c, &p, sizeof (_Unwind_Ptr));
-	    }
-	}
-      else if (t && c && t != c)
-	memcpy (c, t, dwarf_reg_size_table[i]);
-    }
-
-  /* If the current frame doesn't have a saved stack pointer, then we
-     need to rely on EH_RETURN_STACKADJ_RTX to get our target stack
-     pointer value reloaded.  */
-  if (!_Unwind_GetGRPtr (current, __builtin_dwarf_sp_column ()))
-    {
-      void *target_cfa;
-
-      target_cfa = _Unwind_GetPtr (target, __builtin_dwarf_sp_column ());
-
-      /* We adjust SP by the difference between CURRENT and TARGET's CFA.  */
-      if (__LIBGCC_STACK_GROWS_DOWNWARD__)
-	return target_cfa - current->cfa + target->args_size;
-      else
-	return current->cfa - target_cfa - target->args_size;
-    }
-  return 0;
-}
-
-static inline _Unwind_Ptr
-uw_identify_context (struct _Unwind_Context *context)
-{
-  /* The CFA is not sufficient to disambiguate the context of a function
-     interrupted by a signal before establishing its frame and the context
-     of the signal itself.  */
-  if (__LIBGCC_STACK_GROWS_DOWNWARD__)
-    return _Unwind_GetCFA (context) - _Unwind_IsSignalFrame (context);
-  else
-    return _Unwind_GetCFA (context) + _Unwind_IsSignalFrame (context);
-}
-
-
-#include "unwind.inc"
-
-#if defined (USE_GAS_SYMVER) && defined (SHARED) && defined (USE_LIBUNWIND_EXCEPTIONS)
-alias (_Unwind_Backtrace);
-alias (_Unwind_DeleteException);
-alias (_Unwind_FindEnclosingFunction);
-alias (_Unwind_ForcedUnwind);
-alias (_Unwind_GetDataRelBase);
-alias (_Unwind_GetTextRelBase);
-alias (_Unwind_GetCFA);
-alias (_Unwind_GetGR);
-alias (_Unwind_GetIP);
-alias (_Unwind_GetLanguageSpecificData);
-alias (_Unwind_GetRegionStart);
-alias (_Unwind_RaiseException);
-alias (_Unwind_Resume);
-alias (_Unwind_Resume_or_Rethrow);
-alias (_Unwind_SetGR);
-alias (_Unwind_SetIP);
-#endif
-
-#endif /* !USING_SJLJ_EXCEPTIONS */
diff --git a/libgcc/config/cr16/unwind-dw2.h b/libgcc/config/cr16/unwind-dw2.h
deleted file mode 100644
index 0c478e5..0000000
--- a/libgcc/config/cr16/unwind-dw2.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/* DWARF2 frame unwind data structure.
-   Copyright (C) 1997-2022 Free Software Foundation, Inc.
-
-   This file is part of GCC.
-
-   GCC 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.
-
-   GCC 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/>.  */
-
-/* The result of interpreting the frame unwind info for a frame.
-   This is all symbolic at this point, as none of the values can
-   be resolved until the target pc is located.  */
-typedef struct
-{
-  /* Each register save state can be described in terms of a CFA slot,
-     another register, or a location expression.  */
-  struct frame_state_reg_info
-  {
-    struct {
-      union {
-	_Unwind_Word reg;
-	_Unwind_Sword offset;
-	const unsigned char *exp;
-      } loc;
-      enum {
-	REG_UNSAVED,
-	REG_SAVED_OFFSET,
-	REG_SAVED_REG,
-	REG_SAVED_EXP,
-	REG_SAVED_VAL_OFFSET,
-	REG_SAVED_VAL_EXP,
-	REG_UNDEFINED
-      } how;
-    } reg[__LIBGCC_DWARF_FRAME_REGISTERS__+1];
-
-    /* Used to implement DW_CFA_remember_state.  */
-    struct frame_state_reg_info *prev;
-
-    /* The CFA can be described in terms of a reg+offset or a
-       location expression.  */
-    _Unwind_Sword cfa_offset;
-    _Unwind_Word cfa_reg;
-    const unsigned char *cfa_exp;
-    enum {
-      CFA_UNSET,
-      CFA_REG_OFFSET,
-      CFA_EXP
-    } cfa_how;
-  } regs;
-
-  /* The PC described by the current frame state.  */
-  void *pc;
-
-  /* The information we care about from the CIE/FDE.  */
-  _Unwind_Personality_Fn personality;
-  _Unwind_Sword data_align;
-  _Unwind_Word code_align;
-  _Unwind_Word retaddr_column;
-  unsigned char fde_encoding;
-  unsigned char lsda_encoding;
-  unsigned char saw_z;
-  unsigned char signal_frame;
-  void *eh_ptr;
-} _Unwind_FrameState;
-