[gcc] GCC 4.5.0=>4.5.1

gcc/libstdc++-v3/libsupc++/eh_alloc.cc

Index: gcc/libstdc++-v3/libsupc++/eh_alloc.cc
diff --git a/gcc/libstdc++-v3/libsupc++/eh_alloc.cc b/gcc/libstdc++-v3/libsupc++/eh_alloc.cc
deleted file mode 100644
index 818af0fe1f024ec7175320d57d253cc036f3ed75..0000000000000000000000000000000000000000
--- a/gcc/libstdc++-v3/libsupc++/eh_alloc.cc
+++ /dev/null
@@ -1,220 +0,0 @@
-// -*- C++ -*- Allocate exception objects.
-// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009
-// 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/>.
-
-// This is derived from the C++ ABI for IA-64.  Where we diverge
-// for cross-architecture compatibility are noted with "@@@".
-
-#include <bits/c++config.h>
-#include <cstdlib>
-#if _GLIBCXX_HOSTED
-#include <cstring>
-#endif
-#include <climits>
-#include <exception>
-#include "unwind-cxx.h"
-#include <ext/concurrence.h>
-
-#if _GLIBCXX_HOSTED
-using std::free;
-using std::malloc;
-using std::memset;
-#else
-// In a freestanding environment, these functions may not be available
-// -- but for now, we assume that they are.
-extern "C" void *malloc (std::size_t);
-extern "C" void free(void *);
-extern "C" void *memset (void *, int, std::size_t);
-#endif
-
-using namespace __cxxabiv1;
-
-// ??? How to control these parameters.
-
-// Guess from the size of basic types how large a buffer is reasonable.
-// Note that the basic c++ exception header has 13 pointers and 2 ints,
-// so on a system with PSImode pointers we're talking about 56 bytes
-// just for overhead.
-
-#if INT_MAX == 32767
-# define EMERGENCY_OBJ_SIZE	128
-# define EMERGENCY_OBJ_COUNT	16
-#elif LONG_MAX == 2147483647
-# define EMERGENCY_OBJ_SIZE	512
-# define EMERGENCY_OBJ_COUNT	32
-#else
-# define EMERGENCY_OBJ_SIZE	1024
-# define EMERGENCY_OBJ_COUNT	64
-#endif
-
-#ifndef __GTHREADS
-# undef EMERGENCY_OBJ_COUNT
-# define EMERGENCY_OBJ_COUNT	4
-#endif
-
-#if INT_MAX == 32767 || EMERGENCY_OBJ_COUNT <= 32
-typedef unsigned int bitmask_type;
-#else
-typedef unsigned long bitmask_type;
-#endif
-
-
-typedef char one_buffer[EMERGENCY_OBJ_SIZE] __attribute__((aligned));
-static one_buffer emergency_buffer[EMERGENCY_OBJ_COUNT];
-static bitmask_type emergency_used;
-
-static __cxa_dependent_exception dependents_buffer[EMERGENCY_OBJ_COUNT];
-static bitmask_type dependents_used;
-
-namespace
-{
-  // A single mutex controlling emergency allocations.
-  __gnu_cxx::__mutex emergency_mutex;
-}
-
-extern "C" void *
-__cxxabiv1::__cxa_allocate_exception(std::size_t thrown_size) throw()
-{
-  void *ret;
-
-  thrown_size += sizeof (__cxa_refcounted_exception);
-  ret = malloc (thrown_size);
-
-  if (! ret)
-    {
-      __gnu_cxx::__scoped_lock sentry(emergency_mutex);
-
-      bitmask_type used = emergency_used;
-      unsigned int which = 0;
-
-      if (thrown_size > EMERGENCY_OBJ_SIZE)
-	goto failed;
-      while (used & 1)
-	{
-	  used >>= 1;
-	  if (++which >= EMERGENCY_OBJ_COUNT)
-	    goto failed;
-	}
-
-      emergency_used |= (bitmask_type)1 << which;
-      ret = &emergency_buffer[which][0];
-
-    failed:;
-
-      if (!ret)
-	std::terminate ();
-    }
-
-  // We have an uncaught exception as soon as we allocate memory.  This
-  // yields uncaught_exception() true during the copy-constructor that
-  // initializes the exception object.  See Issue 475.
-  __cxa_eh_globals *globals = __cxa_get_globals ();
-  globals->uncaughtExceptions += 1;
-
-  memset (ret, 0, sizeof (__cxa_refcounted_exception));
-
-  return (void *)((char *)ret + sizeof (__cxa_refcounted_exception));
-}
-
-
-extern "C" void
-__cxxabiv1::__cxa_free_exception(void *vptr) throw()
-{
-  char *base = (char *) emergency_buffer;
-  char *ptr = (char *) vptr;
-  if (ptr >= base
-      && ptr < base + sizeof (emergency_buffer))
-    {
-      const unsigned int which
-	= (unsigned) (ptr - base) / EMERGENCY_OBJ_SIZE;
-
-      __gnu_cxx::__scoped_lock sentry(emergency_mutex);
-      emergency_used &= ~((bitmask_type)1 << which);
-    }
-  else
-    free (ptr - sizeof (__cxa_refcounted_exception));
-}
-
-
-extern "C" __cxa_dependent_exception*
-__cxxabiv1::__cxa_allocate_dependent_exception() throw()
-{
-  __cxa_dependent_exception *ret;
-
-  ret = static_cast<__cxa_dependent_exception*>
-    (malloc (sizeof (__cxa_dependent_exception)));
-
-  if (!ret)
-    {
-      __gnu_cxx::__scoped_lock sentry(emergency_mutex);
-
-      bitmask_type used = dependents_used;
-      unsigned int which = 0;
-
-      while (used & 1)
-	{
-	  used >>= 1;
-	  if (++which >= EMERGENCY_OBJ_COUNT)
-	    goto failed;
-	}
-
-      dependents_used |= (bitmask_type)1 << which;
-      ret = &dependents_buffer[which];
-
-    failed:;
-
-      if (!ret)
-	std::terminate ();
-    }
-
-  // We have an uncaught exception as soon as we allocate memory.  This
-  // yields uncaught_exception() true during the copy-constructor that
-  // initializes the exception object.  See Issue 475.
-  __cxa_eh_globals *globals = __cxa_get_globals ();
-  globals->uncaughtExceptions += 1;
-
-  memset (ret, 0, sizeof (__cxa_dependent_exception));
-
-  return ret;
-}
-
-
-extern "C" void
-__cxxabiv1::__cxa_free_dependent_exception
-  (__cxa_dependent_exception *vptr) throw()
-{
-  char *base = (char *) dependents_buffer;
-  char *ptr = (char *) vptr;
-  if (ptr >= base
-      && ptr < base + sizeof (dependents_buffer))
-    {
-      const unsigned int which
-	= (unsigned) (ptr - base) / sizeof (__cxa_dependent_exception);
-
-      __gnu_cxx::__scoped_lock sentry(emergency_mutex);
-      dependents_used &= ~((bitmask_type)1 << which);
-    }
-  else
-    free (vptr);
-}