--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libstdc++-v3/libsupc++/eh_personality.cc	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,803 @@
+// -*- C++ -*- The GNU C++ exception personality routine.
+// Copyright (C) 2001-2017 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 <bits/c++config.h>
+#include <cstdlib>
+#include <bits/exception_defines.h>
+#include <cxxabi.h>
+#include "unwind-cxx.h"
+
+
+using namespace __cxxabiv1;
+
+#include "unwind-pe.h"
+
+
+struct lsda_header_info
+{
+  _Unwind_Ptr Start;
+  _Unwind_Ptr LPStart;
+  _Unwind_Ptr ttype_base;
+  const unsigned char *TType;
+  const unsigned char *action_table;
+  unsigned char ttype_encoding;
+  unsigned char call_site_encoding;
+};
+
+static const unsigned char *
+parse_lsda_header (_Unwind_Context *context, const unsigned char *p,
+		   lsda_header_info *info)
+{
+  _uleb128_t tmp;
+  unsigned char lpstart_encoding;
+
+  info->Start = (context ? _Unwind_GetRegionStart (context) : 0);
+
+  // Find @LPStart, the base to which landing pad offsets are relative.
+  lpstart_encoding = *p++;
+  if (lpstart_encoding != DW_EH_PE_omit)
+    p = read_encoded_value (context, lpstart_encoding, p, &info->LPStart);
+  else
+    info->LPStart = info->Start;
+
+  // Find @TType, the base of the handler and exception spec type data.
+  info->ttype_encoding = *p++;
+  if (info->ttype_encoding != DW_EH_PE_omit)
+    {
+#if _GLIBCXX_OVERRIDE_TTYPE_ENCODING
+      /* Older ARM EABI toolchains set this value incorrectly, so use a
+	 hardcoded OS-specific format.  */
+      info->ttype_encoding = _GLIBCXX_OVERRIDE_TTYPE_ENCODING;
+#endif
+      p = read_uleb128 (p, &tmp);
+      info->TType = p + tmp;
+    }
+  else
+    info->TType = 0;
+
+  // The encoding and length of the call-site table; the action table
+  // immediately follows.
+  info->call_site_encoding = *p++;
+  p = read_uleb128 (p, &tmp);
+  info->action_table = p + tmp;
+
+  return p;
+}
+
+// Return an element from a type table.
+
+static const std::type_info *
+get_ttype_entry (lsda_header_info *info, _uleb128_t i)
+{
+  _Unwind_Ptr ptr;
+
+  i *= size_of_encoded_value (info->ttype_encoding);
+  read_encoded_value_with_base (info->ttype_encoding, info->ttype_base,
+				info->TType - i, &ptr);
+
+  return reinterpret_cast<const std::type_info *>(ptr);
+}
+
+#ifdef __ARM_EABI_UNWINDER__
+
+// The ABI provides a routine for matching exception object types.
+typedef _Unwind_Control_Block _throw_typet;
+#define get_adjusted_ptr(catch_type, throw_type, thrown_ptr_p) \
+  (__cxa_type_match (throw_type, catch_type, false, thrown_ptr_p) \
+   != ctm_failed)
+
+// Return true if THROW_TYPE matches one if the filter types.
+
+static bool
+check_exception_spec(lsda_header_info* info, _throw_typet* throw_type,
+		     void* thrown_ptr, _sleb128_t filter_value)
+{
+  const _uleb128_t* e = ((const _uleb128_t*) info->TType)
+			  - filter_value - 1;
+
+  while (1)
+    {
+      const std::type_info* catch_type;
+      _uleb128_t tmp;
+
+      tmp = *e;
+      
+      // Zero signals the end of the list.  If we've not found
+      // a match by now, then we've failed the specification.
+      if (tmp == 0)
+        return false;
+
+      tmp = _Unwind_decode_typeinfo_ptr(info->ttype_base, (_Unwind_Word) e);
+
+      // Match a ttype entry.
+      catch_type = reinterpret_cast<const std::type_info*>(tmp);
+
+      // ??? There is currently no way to ask the RTTI code about the
+      // relationship between two types without reference to a specific
+      // object.  There should be; then we wouldn't need to mess with
+      // thrown_ptr here.
+      if (get_adjusted_ptr(catch_type, throw_type, &thrown_ptr))
+	return true;
+
+      // Advance to the next entry.
+      e++;
+    }
+}
+
+
+// Save stage1 handler information in the exception object
+
+static inline void
+save_caught_exception(struct _Unwind_Exception* ue_header,
+		      struct _Unwind_Context* context,
+		      void* thrown_ptr,
+		      int handler_switch_value,
+		      const unsigned char* language_specific_data,
+		      _Unwind_Ptr landing_pad,
+		      const unsigned char* action_record
+			__attribute__((__unused__)))
+{
+    ue_header->barrier_cache.sp = _Unwind_GetGR(context, UNWIND_STACK_REG);
+    ue_header->barrier_cache.bitpattern[0] = (_uw) thrown_ptr;
+    ue_header->barrier_cache.bitpattern[1]
+      = (_uw) handler_switch_value;
+    ue_header->barrier_cache.bitpattern[2]
+      = (_uw) language_specific_data;
+    ue_header->barrier_cache.bitpattern[3] = (_uw) landing_pad;
+}
+
+
+// Restore the catch handler data saved during phase1.
+
+static inline void
+restore_caught_exception(struct _Unwind_Exception* ue_header,
+			 int& handler_switch_value,
+			 const unsigned char*& language_specific_data,
+			 _Unwind_Ptr& landing_pad)
+{
+  handler_switch_value = (int) ue_header->barrier_cache.bitpattern[1];
+  language_specific_data =
+    (const unsigned char*) ue_header->barrier_cache.bitpattern[2];
+  landing_pad = (_Unwind_Ptr) ue_header->barrier_cache.bitpattern[3];
+}
+
+#define CONTINUE_UNWINDING \
+  do								\
+    {								\
+      if (__gnu_unwind_frame(ue_header, context) != _URC_OK)	\
+	return _URC_FAILURE;					\
+      return _URC_CONTINUE_UNWIND;				\
+    }								\
+  while (0)
+
+// Return true if the filter spec is empty, ie throw().
+
+static bool
+empty_exception_spec (lsda_header_info *info, _Unwind_Sword filter_value)
+{
+  const _Unwind_Word* e = ((const _Unwind_Word*) info->TType)
+			  - filter_value - 1;
+
+  return *e == 0;
+}
+
+#else
+typedef const std::type_info _throw_typet;
+
+
+// Given the thrown type THROW_TYPE, pointer to a variable containing a
+// pointer to the exception object THROWN_PTR_P and a type CATCH_TYPE to
+// compare against, return whether or not there is a match and if so,
+// update *THROWN_PTR_P.
+
+static bool
+get_adjusted_ptr (const std::type_info *catch_type,
+		  const std::type_info *throw_type,
+		  void **thrown_ptr_p)
+{
+  void *thrown_ptr = *thrown_ptr_p;
+
+  // Pointer types need to adjust the actual pointer, not
+  // the pointer to pointer that is the exception object.
+  // This also has the effect of passing pointer types
+  // "by value" through the __cxa_begin_catch return value.
+  if (throw_type->__is_pointer_p ())
+    thrown_ptr = *(void **) thrown_ptr;
+
+  if (catch_type->__do_catch (throw_type, &thrown_ptr, 1))
+    {
+      *thrown_ptr_p = thrown_ptr;
+      return true;
+    }
+
+  return false;
+}
+
+// Return true if THROW_TYPE matches one if the filter types.
+
+static bool
+check_exception_spec(lsda_header_info* info, _throw_typet* throw_type,
+		      void* thrown_ptr, _sleb128_t filter_value)
+{
+  const unsigned char *e = info->TType - filter_value - 1;
+
+  while (1)
+    {
+      const std::type_info *catch_type;
+      _uleb128_t tmp;
+
+      e = read_uleb128 (e, &tmp);
+
+      // Zero signals the end of the list.  If we've not found
+      // a match by now, then we've failed the specification.
+      if (tmp == 0)
+        return false;
+
+      // Match a ttype entry.
+      catch_type = get_ttype_entry (info, tmp);
+
+      // ??? There is currently no way to ask the RTTI code about the
+      // relationship between two types without reference to a specific
+      // object.  There should be; then we wouldn't need to mess with
+      // thrown_ptr here.
+      if (get_adjusted_ptr (catch_type, throw_type, &thrown_ptr))
+	return true;
+    }
+}
+
+
+// Save stage1 handler information in the exception object
+
+static inline void
+save_caught_exception(struct _Unwind_Exception* ue_header,
+		      struct _Unwind_Context* context
+			__attribute__((__unused__)),
+		      void* thrown_ptr,
+		      int handler_switch_value,
+		      const unsigned char* language_specific_data,
+		      _Unwind_Ptr landing_pad __attribute__((__unused__)),
+		      const unsigned char* action_record)
+{
+  __cxa_exception* xh = __get_exception_header_from_ue(ue_header);
+
+  xh->handlerSwitchValue = handler_switch_value;
+  xh->actionRecord = action_record;
+  xh->languageSpecificData = language_specific_data;
+  xh->adjustedPtr = thrown_ptr;
+
+  // ??? Completely unknown what this field is supposed to be for.
+  // ??? Need to cache TType encoding base for call_unexpected.
+  xh->catchTemp = landing_pad;
+}
+
+
+// Restore the catch handler information saved during phase1.
+
+static inline void
+restore_caught_exception(struct _Unwind_Exception* ue_header,
+			 int& handler_switch_value,
+			 const unsigned char*& language_specific_data,
+			 _Unwind_Ptr& landing_pad)
+{
+  __cxa_exception* xh = __get_exception_header_from_ue(ue_header);
+  handler_switch_value = xh->handlerSwitchValue;
+  language_specific_data = xh->languageSpecificData;
+  landing_pad = (_Unwind_Ptr) xh->catchTemp;
+}
+
+#define CONTINUE_UNWINDING return _URC_CONTINUE_UNWIND
+
+// Return true if the filter spec is empty, ie throw().
+
+static bool
+empty_exception_spec (lsda_header_info *info, _Unwind_Sword filter_value)
+{
+  const unsigned char *e = info->TType - filter_value - 1;
+  _uleb128_t tmp;
+
+  e = read_uleb128 (e, &tmp);
+  return tmp == 0;
+}
+
+#endif // !__ARM_EABI_UNWINDER__
+
+namespace __cxxabiv1
+{
+
+// Using a different personality function name causes link failures
+// when trying to mix code using different exception handling models.
+#ifdef __USING_SJLJ_EXCEPTIONS__
+#define PERSONALITY_FUNCTION	__gxx_personality_sj0
+#define __builtin_eh_return_data_regno(x) x
+#elif defined(__SEH__)
+#define PERSONALITY_FUNCTION	__gxx_personality_imp
+#else
+#define PERSONALITY_FUNCTION	__gxx_personality_v0
+#endif
+
+#if defined (__SEH__) && !defined (__USING_SJLJ_EXCEPTIONS__)
+static
+#else
+extern "C"
+#endif
+_Unwind_Reason_Code
+#ifdef __ARM_EABI_UNWINDER__
+PERSONALITY_FUNCTION (_Unwind_State state,
+		      struct _Unwind_Exception* ue_header,
+		      struct _Unwind_Context* context)
+#else
+PERSONALITY_FUNCTION (int version,
+		      _Unwind_Action actions,
+		      _Unwind_Exception_Class exception_class,
+		      struct _Unwind_Exception *ue_header,
+		      struct _Unwind_Context *context)
+#endif
+{
+  enum found_handler_type
+  {
+    found_nothing,
+    found_terminate,
+    found_cleanup,
+    found_handler
+  } found_type;
+
+  lsda_header_info info;
+  const unsigned char *language_specific_data;
+  const unsigned char *action_record;
+  const unsigned char *p;
+  _Unwind_Ptr landing_pad, ip;
+  int handler_switch_value;
+  void* thrown_ptr = 0;
+  bool foreign_exception;
+  int ip_before_insn = 0;
+
+#ifdef __ARM_EABI_UNWINDER__
+  _Unwind_Action actions;
+
+  switch (state & _US_ACTION_MASK)
+    {
+    case _US_VIRTUAL_UNWIND_FRAME:
+      // If the unwind state pattern is
+      // _US_VIRTUAL_UNWIND_FRAME | _US_FORCE_UNWIND
+      // then we don't need to search for any handler as it is not a real
+      // exception. Just unwind the stack.
+      if (state & _US_FORCE_UNWIND)
+	CONTINUE_UNWINDING;
+      actions = _UA_SEARCH_PHASE;
+      break;
+
+    case _US_UNWIND_FRAME_STARTING:
+      actions = _UA_CLEANUP_PHASE;
+      if (!(state & _US_FORCE_UNWIND)
+	  && ue_header->barrier_cache.sp == _Unwind_GetGR(context,
+							  UNWIND_STACK_REG))
+	actions |= _UA_HANDLER_FRAME;
+      break;
+
+    case _US_UNWIND_FRAME_RESUME:
+      CONTINUE_UNWINDING;
+      break;
+
+    default:
+      std::abort();
+    }
+  actions |= state & _US_FORCE_UNWIND;
+
+  // We don't know which runtime we're working with, so can't check this.
+  // However the ABI routines hide this from us, and we don't actually need
+  // to know.
+  foreign_exception = false;
+
+  // The dwarf unwinder assumes the context structure holds things like the
+  // function and LSDA pointers.  The ARM implementation caches these in
+  // the exception header (UCB).  To avoid rewriting everything we make a
+  // virtual scratch register point at the UCB.
+  ip = (_Unwind_Ptr) ue_header;
+  _Unwind_SetGR(context, UNWIND_POINTER_REG, ip);
+#else
+  __cxa_exception* xh = __get_exception_header_from_ue(ue_header);
+
+  // Interface version check.
+  if (version != 1)
+    return _URC_FATAL_PHASE1_ERROR;
+  foreign_exception = !__is_gxx_exception_class(exception_class);
+#endif
+
+  // Shortcut for phase 2 found handler for domestic exception.
+  if (actions == (_UA_CLEANUP_PHASE | _UA_HANDLER_FRAME)
+      && !foreign_exception)
+    {
+      restore_caught_exception(ue_header, handler_switch_value,
+			       language_specific_data, landing_pad);
+      found_type = (landing_pad == 0 ? found_terminate : found_handler);
+      goto install_context;
+    }
+
+  language_specific_data = (const unsigned char *)
+    _Unwind_GetLanguageSpecificData (context);
+
+  // If no LSDA, then there are no handlers or cleanups.
+  if (! language_specific_data)
+    CONTINUE_UNWINDING;
+
+  // Parse the LSDA header.
+  p = parse_lsda_header (context, language_specific_data, &info);
+  info.ttype_base = base_of_encoded_value (info.ttype_encoding, context);
+#ifdef _GLIBCXX_HAVE_GETIPINFO
+  ip = _Unwind_GetIPInfo (context, &ip_before_insn);
+#else
+  ip = _Unwind_GetIP (context);
+#endif
+  if (! ip_before_insn)
+    --ip;
+  landing_pad = 0;
+  action_record = 0;
+  handler_switch_value = 0;
+
+#ifdef __USING_SJLJ_EXCEPTIONS__
+  // The given "IP" is an index into the call-site table, with two
+  // exceptions -- -1 means no-action, and 0 means terminate.  But
+  // since we're using uleb128 values, we've not got random access
+  // to the array.
+  if ((int) ip < 0)
+    return _URC_CONTINUE_UNWIND;
+  else if (ip == 0)
+    {
+      // Fall through to set found_terminate.
+    }
+  else
+    {
+      _uleb128_t cs_lp, cs_action;
+      do
+	{
+	  p = read_uleb128 (p, &cs_lp);
+	  p = read_uleb128 (p, &cs_action);
+	}
+      while (--ip);
+
+      // Can never have null landing pad for sjlj -- that would have
+      // been indicated by a -1 call site index.
+      landing_pad = cs_lp + 1;
+      if (cs_action)
+	action_record = info.action_table + cs_action - 1;
+      goto found_something;
+    }
+#else
+  // Search the call-site table for the action associated with this IP.
+  while (p < info.action_table)
+    {
+      _Unwind_Ptr cs_start, cs_len, cs_lp;
+      _uleb128_t cs_action;
+
+      // Note that all call-site encodings are "absolute" displacements.
+      p = read_encoded_value (0, info.call_site_encoding, p, &cs_start);
+      p = read_encoded_value (0, info.call_site_encoding, p, &cs_len);
+      p = read_encoded_value (0, info.call_site_encoding, p, &cs_lp);
+      p = read_uleb128 (p, &cs_action);
+
+      // The table is sorted, so if we've passed the ip, stop.
+      if (ip < info.Start + cs_start)
+	p = info.action_table;
+      else if (ip < info.Start + cs_start + cs_len)
+	{
+	  if (cs_lp)
+	    landing_pad = info.LPStart + cs_lp;
+	  if (cs_action)
+	    action_record = info.action_table + cs_action - 1;
+	  goto found_something;
+	}
+    }
+#endif // __USING_SJLJ_EXCEPTIONS__
+
+  // If ip is not present in the table, call terminate.  This is for
+  // a destructor inside a cleanup, or a library routine the compiler
+  // was not expecting to throw.
+  found_type = found_terminate;
+  goto do_something;
+
+ found_something:
+  if (landing_pad == 0)
+    {
+      // If ip is present, and has a null landing pad, there are
+      // no cleanups or handlers to be run.
+      found_type = found_nothing;
+    }
+  else if (action_record == 0)
+    {
+      // If ip is present, has a non-null landing pad, and a null
+      // action table offset, then there are only cleanups present.
+      // Cleanups use a zero switch value, as set above.
+      found_type = found_cleanup;
+    }
+  else
+    {
+      // Otherwise we have a catch handler or exception specification.
+
+      _sleb128_t ar_filter, ar_disp;
+      const std::type_info* catch_type;
+      _throw_typet* throw_type;
+      bool saw_cleanup = false;
+      bool saw_handler = false;
+
+#ifdef __ARM_EABI_UNWINDER__
+      // ??? How does this work - more importantly, how does it interact with
+      // dependent exceptions?
+      throw_type = ue_header;
+      if (actions & _UA_FORCE_UNWIND)
+	{
+	  __GXX_INIT_FORCED_UNWIND_CLASS(ue_header->exception_class);
+	}
+      else if (!foreign_exception)
+	thrown_ptr = __get_object_from_ue (ue_header);
+#else
+#if __cpp_rtti
+      // During forced unwinding, match a magic exception type.
+      if (actions & _UA_FORCE_UNWIND)
+	{
+	  throw_type = &typeid(abi::__forced_unwind);
+	}
+      // With a foreign exception class, there's no exception type.
+      // ??? What to do about GNU Java and GNU Ada exceptions?
+      else if (foreign_exception)
+	{
+	  throw_type = &typeid(abi::__foreign_exception);
+	}
+      else
+#endif
+        {
+          thrown_ptr = __get_object_from_ue (ue_header);
+          throw_type = __get_exception_header_from_obj
+            (thrown_ptr)->exceptionType;
+        }
+#endif
+
+      while (1)
+	{
+	  p = action_record;
+	  p = read_sleb128 (p, &ar_filter);
+	  read_sleb128 (p, &ar_disp);
+
+	  if (ar_filter == 0)
+	    {
+	      // Zero filter values are cleanups.
+	      saw_cleanup = true;
+	    }
+	  else if (ar_filter > 0)
+	    {
+	      // Positive filter values are handlers.
+	      catch_type = get_ttype_entry (&info, ar_filter);
+
+	      // Null catch type is a catch-all handler; we can catch foreign
+	      // exceptions with this.  Otherwise we must match types.
+	      if (! catch_type
+		  || (throw_type
+		      && get_adjusted_ptr (catch_type, throw_type,
+					   &thrown_ptr)))
+		{
+		  saw_handler = true;
+		  break;
+		}
+	    }
+	  else
+	    {
+	      // Negative filter values are exception specifications.
+	      // ??? How do foreign exceptions fit in?  As far as I can
+	      // see we can't match because there's no __cxa_exception
+	      // object to stuff bits in for __cxa_call_unexpected to use.
+	      // Allow them iff the exception spec is non-empty.  I.e.
+	      // a throw() specification results in __unexpected.
+	      if ((throw_type
+		   && !(actions & _UA_FORCE_UNWIND)
+		   && !foreign_exception)
+		  ? ! check_exception_spec (&info, throw_type, thrown_ptr,
+					    ar_filter)
+		  : empty_exception_spec (&info, ar_filter))
+		{
+		  saw_handler = true;
+		  break;
+		}
+	    }
+
+	  if (ar_disp == 0)
+	    break;
+	  action_record = p + ar_disp;
+	}
+
+      if (saw_handler)
+	{
+	  handler_switch_value = ar_filter;
+	  found_type = found_handler;
+	}
+      else
+	found_type = (saw_cleanup ? found_cleanup : found_nothing);
+    }
+
+ do_something:
+   if (found_type == found_nothing)
+     CONTINUE_UNWINDING;
+
+  if (actions & _UA_SEARCH_PHASE)
+    {
+      if (found_type == found_cleanup)
+	CONTINUE_UNWINDING;
+
+      // For domestic exceptions, we cache data from phase 1 for phase 2.
+      if (!foreign_exception)
+        {
+	  save_caught_exception(ue_header, context, thrown_ptr,
+				handler_switch_value, language_specific_data,
+				landing_pad, action_record);
+	}
+      return _URC_HANDLER_FOUND;
+    }
+
+ install_context:
+  
+  // We can't use any of the cxa routines with foreign exceptions,
+  // because they all expect ue_header to be a struct __cxa_exception.
+  // So in that case, call terminate or unexpected directly.
+  if ((actions & _UA_FORCE_UNWIND)
+      || foreign_exception)
+    {
+      if (found_type == found_terminate)
+	std::terminate ();
+      else if (handler_switch_value < 0)
+	{
+	  __try 
+	    { std::unexpected (); } 
+	  __catch(...) 
+	    { std::terminate (); }
+	}
+    }
+  else
+    {
+      if (found_type == found_terminate)
+	__cxa_call_terminate(ue_header);
+
+      // Cache the TType base value for __cxa_call_unexpected, as we won't
+      // have an _Unwind_Context then.
+      if (handler_switch_value < 0)
+	{
+	  parse_lsda_header (context, language_specific_data, &info);
+	  info.ttype_base = base_of_encoded_value (info.ttype_encoding,
+						   context);
+
+#ifdef __ARM_EABI_UNWINDER__
+	  const _Unwind_Word* e;
+	  _Unwind_Word n;
+	  
+	  e = ((const _Unwind_Word*) info.TType) - handler_switch_value - 1;
+	  // Count the number of rtti objects.
+	  n = 0;
+	  while (e[n] != 0)
+	    n++;
+
+	  // Count.
+	  ue_header->barrier_cache.bitpattern[1] = n;
+	  // Base
+	  ue_header->barrier_cache.bitpattern[2] = info.ttype_base;
+	  // Stride.
+	  ue_header->barrier_cache.bitpattern[3] = 4;
+	  // List head.
+	  ue_header->barrier_cache.bitpattern[4] = (_Unwind_Word) e;
+#else
+	  xh->catchTemp = base_of_encoded_value (info.ttype_encoding, context);
+#endif
+	}
+    }
+
+  /* For targets with pointers smaller than the word size, we must extend the
+     pointer, and this extension is target dependent.  */
+  _Unwind_SetGR (context, __builtin_eh_return_data_regno (0),
+		 __builtin_extend_pointer (ue_header));
+  _Unwind_SetGR (context, __builtin_eh_return_data_regno (1),
+		 handler_switch_value);
+  _Unwind_SetIP (context, landing_pad);
+#ifdef __ARM_EABI_UNWINDER__
+  if (found_type == found_cleanup)
+    __cxa_begin_cleanup(ue_header);
+#endif
+  return _URC_INSTALL_CONTEXT;
+}
+
+/* The ARM EABI implementation of __cxa_call_unexpected is in a
+   different file so that the personality routine (PR) can be used
+   standalone.  The generic routine shared datastructures with the PR
+   so it is most convenient to implement it here.  */
+#ifndef __ARM_EABI_UNWINDER__
+extern "C" void
+__cxa_call_unexpected (void *exc_obj_in)
+{
+  _Unwind_Exception *exc_obj
+    = reinterpret_cast <_Unwind_Exception *>(exc_obj_in);
+
+  __cxa_begin_catch (exc_obj);
+
+  // This function is a handler for our exception argument.  If we exit
+  // by throwing a different exception, we'll need the original cleaned up.
+  struct end_catch_protect
+  {
+    end_catch_protect() { }
+    ~end_catch_protect() { __cxa_end_catch(); }
+  } end_catch_protect_obj;
+
+  lsda_header_info info;
+  __cxa_exception *xh = __get_exception_header_from_ue (exc_obj);
+  const unsigned char *xh_lsda;
+  _Unwind_Sword xh_switch_value;
+  std::terminate_handler xh_terminate_handler;
+
+  // If the unexpectedHandler rethrows the exception (e.g. to categorize it),
+  // it will clobber data about the current handler.  So copy the data out now.
+  xh_lsda = xh->languageSpecificData;
+  xh_switch_value = xh->handlerSwitchValue;
+  xh_terminate_handler = xh->terminateHandler;
+  info.ttype_base = (_Unwind_Ptr) xh->catchTemp;
+
+  __try 
+    { __unexpected (xh->unexpectedHandler); } 
+  __catch(...) 
+    {
+      // Get the exception thrown from unexpected.
+
+      __cxa_eh_globals *globals = __cxa_get_globals_fast ();
+      __cxa_exception *new_xh = globals->caughtExceptions;
+      void *new_ptr = __get_object_from_ambiguous_exception (new_xh);
+
+      // We don't quite have enough stuff cached; re-parse the LSDA.
+      parse_lsda_header (0, xh_lsda, &info);
+
+      // If this new exception meets the exception spec, allow it.
+      if (check_exception_spec (&info, __get_exception_header_from_obj
+                                  (new_ptr)->exceptionType,
+				new_ptr, xh_switch_value))
+	{ __throw_exception_again; }
+
+      // If the exception spec allows std::bad_exception, throw that.
+      // We don't have a thrown object to compare against, but since
+      // bad_exception doesn't have virtual bases, that's OK; just pass 0.
+#if __cpp_exceptions && __cpp_rtti
+      const std::type_info &bad_exc = typeid (std::bad_exception);
+      if (check_exception_spec (&info, &bad_exc, 0, xh_switch_value))
+	throw std::bad_exception();
+#endif   
+
+      // Otherwise, die.
+      __terminate (xh_terminate_handler);
+    }
+}
+#endif
+
+#if defined (__SEH__) && !defined (__USING_SJLJ_EXCEPTIONS__)
+extern "C"
+EXCEPTION_DISPOSITION
+__gxx_personality_seh0 (PEXCEPTION_RECORD ms_exc, void *this_frame,
+			PCONTEXT ms_orig_context, PDISPATCHER_CONTEXT ms_disp)
+{
+  return _GCC_specific_handler (ms_exc, this_frame, ms_orig_context,
+				ms_disp, __gxx_personality_imp);
+}
+#endif /* SEH */
+
+} // namespace __cxxabiv1