578f023490
2011-10-12 Paolo Carlini <paolo.carlini@oracle.com> PR c++/50594 * decl.c (cxx_init_decl_processing): Add __attribute__((externally_visible)) to operator new and operator delete library fn. 2011-10-12 Paolo Carlini <paolo.carlini@oracle.com> PR c++/50594 * libsupc++/new (operator new, operator delete): Decorate with __attribute__((__externally_visible__)). * include/bits/c++config: Add _GLIBCXX_THROW. * libsupc++/del_op.cc: Adjust. * libsupc++/del_opv.cc: Likewise. * libsupc++/del_opnt.cc: Likewise. * libsupc++/del_opvnt.cc: Likewise. * libsupc++/new_op.cc: Likewise. * libsupc++/new_opv.cc: Likewise. * libsupc++/new_opnt.cc: Likewise. * libsupc++/new_opvnt.cc: Likewise. * testsuite/18_support/50594.cc: New. * testsuite/ext/profile/mutex_extensions_neg.cc: Adjust dg-error line number. From-SVN: r179863
68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
// Support routines for the -*- C++ -*- dynamic memory management.
|
|
|
|
// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2004, 2009, 2011
|
|
// Free Software Foundation
|
|
//
|
|
// 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 "new"
|
|
|
|
using std::new_handler;
|
|
using std::bad_alloc;
|
|
#if _GLIBCXX_HOSTED
|
|
using std::malloc;
|
|
#else
|
|
// A freestanding C runtime may not provide "malloc" -- but there is no
|
|
// other reasonable way to implement "operator new".
|
|
extern "C" void *malloc (std::size_t);
|
|
#endif
|
|
|
|
extern new_handler __new_handler;
|
|
|
|
_GLIBCXX_WEAK_DEFINITION void *
|
|
operator new (std::size_t sz) _GLIBCXX_THROW (std::bad_alloc)
|
|
{
|
|
void *p;
|
|
|
|
/* malloc (0) is unpredictable; avoid it. */
|
|
if (sz == 0)
|
|
sz = 1;
|
|
p = (void *) malloc (sz);
|
|
while (p == 0)
|
|
{
|
|
new_handler handler = __new_handler;
|
|
if (! handler)
|
|
#ifdef __EXCEPTIONS
|
|
throw bad_alloc();
|
|
#else
|
|
std::abort();
|
|
#endif
|
|
handler ();
|
|
p = (void *) malloc (sz);
|
|
}
|
|
|
|
return p;
|
|
}
|