ced78d8b0c
./: * Makefile.in (LIB2FUNCS): Remove C++ memory management support. * libgcc2.c: Remove __builtin_new, __builtin_vec_new, set_new_handler, __builtin_delete, and __builtin_vec_delete. * except.c (output_exception_table): Don't bother with __EXCEPTION_END__. cp/: * Make-lang.in (CXX_LIB2FUNCS): Add new op new and op delete objs. (various.o): Likewise. * inc/new: Add placement deletes. Add throw specs for default new. * new.cc (set_new_handler): Move here from libgcc2. * new1.cc (new (nothrow)): Catch a bad_alloc thrown from the handler. (new): Move from libgcc2. Throw bad_alloc. * new2.cc: Move the rest of the op news and op deletes from libgcc2. * decl.c (init_decl_processing): Update exception specs on new and delete. From-SVN: r16617
88 lines
2.1 KiB
C++
88 lines
2.1 KiB
C++
// Support routines for the -*- C++ -*- dynamic memory management.
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// Copyright (C) 1997 Free Software Foundation
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// This file is part of GNU CC.
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// GNU CC is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// GNU CC is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with GNU CC; see the file COPYING. If not, write to
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// the Free Software Foundation, 59 Temple Place - Suite 330,
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// Boston, MA 02111-1307, USA.
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// As a special exception, if you link this library with other files,
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// some of which are compiled with GCC, to produce an executable,
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// this library does not by itself cause the resulting executable
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// to be covered by the GNU General Public License.
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// This exception does not however invalidate any other reasons why
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// the executable file might be covered by the GNU General Public License.
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#include "new"
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extern "C" void *malloc (size_t);
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extern new_handler __new_handler;
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#define WEAK(x) \
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x __attribute__ ((weak)); \
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x
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#ifdef L_op_newnt
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WEAK (void * operator new (size_t sz, const nothrow_t&) throw())
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{
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void *p;
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/* malloc (0) is unpredictable; avoid it. */
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if (sz == 0)
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sz = 1;
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p = (void *) malloc (sz);
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while (p == 0)
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{
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new_handler handler = __new_handler;
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if (! handler)
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return 0;
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try
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{
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handler ();
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}
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catch (bad_alloc &)
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{
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return 0;
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}
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p = (void *) malloc (sz);
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}
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return p;
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}
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#endif
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#ifdef L_op_new
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WEAK (void * operator new (size_t sz) throw (std::bad_alloc))
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{
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void *p;
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/* malloc (0) is unpredictable; avoid it. */
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if (sz == 0)
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sz = 1;
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p = (void *) malloc (sz);
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while (p == 0)
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{
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new_handler handler = __new_handler;
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if (! handler)
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throw bad_alloc ();
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handler ();
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p = (void *) malloc (sz);
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}
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return p;
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}
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#endif
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