2001-03-28 13:04:51 +02:00
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// -*- C++ -*- Allocate exception objects.
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2020-01-01 12:51:42 +01:00
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// Copyright (C) 2001-2020 Free Software Foundation, Inc.
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2001-03-28 13:04:51 +02:00
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//
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Makefile.am, [...]: Replace "GNU CC" with "GCC".
2003-05-24 Nathanael Nerode <neroden@gcc.gnu.org>
* libsupc++/Makefile.am, libsupc++/cxxabi.h, libsupc++/del_op.cc,
libsupc++/del_opnt.cc, libsupc++/del_opv.cc, libsupc++/del_opvnt.cc,
libsupc++/eh_alloc.cc, libsupc++/eh_aux_runtime.cc,
libsupc++/eh_catch.cc, libsupc++/eh_exception.cc,
libsupc++/eh_globals.cc, libsupc++/eh_personality.cc,
libsupc++/eh_term_handler.cc, libsupc++/eh_terminate.cc,
libsupc++/eh_throw.cc, libsupc++/eh_type.cc,
libsupc++/eh_unex_handler.cc, libsupc++/exception,
libsupc++/new, libsupc++/new_handler.cc, libsupc++/new_op.cc,
libsupc++/new_opnt.cc, libsupc++/new_opv.cc, libsupc++/new_opvnt.cc,
libsupc++/pure.cc, libsupc++/tinfo.cc, libsupc++/tinfo2.cc,
libsupc++/typeinfo, libsupc++/unwind-cxx.h, libsupc++/vec.cc:
Replace "GNU CC" with "GCC".
From-SVN: r67155
2003-05-24 18:22:03 +02:00
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// This file is part of GCC.
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2001-03-28 13:04:51 +02:00
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//
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Makefile.am, [...]: Replace "GNU CC" with "GCC".
2003-05-24 Nathanael Nerode <neroden@gcc.gnu.org>
* libsupc++/Makefile.am, libsupc++/cxxabi.h, libsupc++/del_op.cc,
libsupc++/del_opnt.cc, libsupc++/del_opv.cc, libsupc++/del_opvnt.cc,
libsupc++/eh_alloc.cc, libsupc++/eh_aux_runtime.cc,
libsupc++/eh_catch.cc, libsupc++/eh_exception.cc,
libsupc++/eh_globals.cc, libsupc++/eh_personality.cc,
libsupc++/eh_term_handler.cc, libsupc++/eh_terminate.cc,
libsupc++/eh_throw.cc, libsupc++/eh_type.cc,
libsupc++/eh_unex_handler.cc, libsupc++/exception,
libsupc++/new, libsupc++/new_handler.cc, libsupc++/new_op.cc,
libsupc++/new_opnt.cc, libsupc++/new_opv.cc, libsupc++/new_opvnt.cc,
libsupc++/pure.cc, libsupc++/tinfo.cc, libsupc++/tinfo2.cc,
libsupc++/typeinfo, libsupc++/unwind-cxx.h, libsupc++/vec.cc:
Replace "GNU CC" with "GCC".
From-SVN: r67155
2003-05-24 18:22:03 +02:00
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// GCC is free software; you can redistribute it and/or modify
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2001-03-28 13:04:51 +02:00
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// it under the terms of the GNU General Public License as published by
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2009-04-09 17:00:19 +02:00
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// the Free Software Foundation; either version 3, or (at your option)
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2001-03-28 13:04:51 +02:00
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// any later version.
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//
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Makefile.am, [...]: Replace "GNU CC" with "GCC".
2003-05-24 Nathanael Nerode <neroden@gcc.gnu.org>
* libsupc++/Makefile.am, libsupc++/cxxabi.h, libsupc++/del_op.cc,
libsupc++/del_opnt.cc, libsupc++/del_opv.cc, libsupc++/del_opvnt.cc,
libsupc++/eh_alloc.cc, libsupc++/eh_aux_runtime.cc,
libsupc++/eh_catch.cc, libsupc++/eh_exception.cc,
libsupc++/eh_globals.cc, libsupc++/eh_personality.cc,
libsupc++/eh_term_handler.cc, libsupc++/eh_terminate.cc,
libsupc++/eh_throw.cc, libsupc++/eh_type.cc,
libsupc++/eh_unex_handler.cc, libsupc++/exception,
libsupc++/new, libsupc++/new_handler.cc, libsupc++/new_op.cc,
libsupc++/new_opnt.cc, libsupc++/new_opv.cc, libsupc++/new_opvnt.cc,
libsupc++/pure.cc, libsupc++/tinfo.cc, libsupc++/tinfo2.cc,
libsupc++/typeinfo, libsupc++/unwind-cxx.h, libsupc++/vec.cc:
Replace "GNU CC" with "GCC".
From-SVN: r67155
2003-05-24 18:22:03 +02:00
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// GCC is distributed in the hope that it will be useful,
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2001-03-28 13:04:51 +02:00
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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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//
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2009-04-09 17:00:19 +02:00
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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2001-03-28 13:04:51 +02:00
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2009-04-09 17:00:19 +02:00
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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2001-03-28 13:04:51 +02:00
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// This is derived from the C++ ABI for IA-64. Where we diverge
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// for cross-architecture compatibility are noted with "@@@".
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2005-11-22 01:19:07 +01:00
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#include <bits/c++config.h>
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2001-03-28 13:04:51 +02:00
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#include <cstdlib>
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2004-08-02 22:28:22 +02:00
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#if _GLIBCXX_HOSTED
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2001-03-28 13:04:51 +02:00
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#include <cstring>
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2004-08-02 22:28:22 +02:00
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#endif
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2001-07-03 01:08:28 +02:00
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#include <climits>
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2002-06-19 17:19:53 +02:00
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#include <exception>
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2001-03-28 13:04:51 +02:00
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#include "unwind-cxx.h"
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2006-09-14 11:48:15 +02:00
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#include <ext/concurrence.h>
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2015-01-22 10:21:48 +01:00
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#include <new>
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2001-03-28 13:04:51 +02:00
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2004-08-02 22:28:22 +02:00
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#if _GLIBCXX_HOSTED
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using std::free;
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using std::malloc;
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2006-05-10 17:43:20 +02:00
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using std::memset;
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2004-08-02 22:28:22 +02:00
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#else
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2005-12-19 01:56:05 +01:00
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// In a freestanding environment, these functions may not be available
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// -- but for now, we assume that they are.
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2004-08-02 22:28:22 +02:00
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extern "C" void *malloc (std::size_t);
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extern "C" void free(void *);
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2006-01-18 12:22:10 +01:00
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extern "C" void *memset (void *, int, std::size_t);
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2004-08-02 22:28:22 +02:00
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#endif
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2001-03-28 13:04:51 +02:00
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2004-08-02 22:28:22 +02:00
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using namespace __cxxabiv1;
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2001-03-28 13:04:51 +02:00
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// ??? How to control these parameters.
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// Guess from the size of basic types how large a buffer is reasonable.
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// Note that the basic c++ exception header has 13 pointers and 2 ints,
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// so on a system with PSImode pointers we're talking about 56 bytes
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// just for overhead.
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#if INT_MAX == 32767
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# define EMERGENCY_OBJ_SIZE 128
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# define EMERGENCY_OBJ_COUNT 16
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2012-12-21 11:12:48 +01:00
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#elif !defined (_GLIBCXX_LLP64) && LONG_MAX == 2147483647
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2001-03-28 13:04:51 +02:00
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# define EMERGENCY_OBJ_SIZE 512
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# define EMERGENCY_OBJ_COUNT 32
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#else
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# define EMERGENCY_OBJ_SIZE 1024
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# define EMERGENCY_OBJ_COUNT 64
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#endif
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#ifndef __GTHREADS
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# undef EMERGENCY_OBJ_COUNT
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# define EMERGENCY_OBJ_COUNT 4
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#endif
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2016-03-24 19:13:40 +01:00
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namespace __gnu_cxx
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{
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void __freeres();
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}
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2001-03-28 13:04:51 +02:00
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2015-01-22 10:21:48 +01:00
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namespace
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{
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// A fixed-size heap, variable size object allocator
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class pool
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{
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public:
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pool();
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2019-01-21 12:47:30 +01:00
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_GLIBCXX_NODISCARD void *allocate (std::size_t);
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2015-01-22 10:21:48 +01:00
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void free (void *);
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bool in_pool (void *);
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private:
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struct free_entry {
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std::size_t size;
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free_entry *next;
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};
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struct allocated_entry {
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std::size_t size;
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2015-01-28 10:53:39 +01:00
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char data[] __attribute__((aligned));
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2015-01-22 10:21:48 +01:00
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};
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// A single mutex controlling emergency allocations.
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__gnu_cxx::__mutex emergency_mutex;
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// The free-list
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free_entry *first_free_entry;
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// The arena itself - we need to keep track of these only
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// to implement in_pool.
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char *arena;
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std::size_t arena_size;
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2016-03-24 19:13:40 +01:00
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friend void __gnu_cxx::__freeres();
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2015-01-22 10:21:48 +01:00
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};
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pool::pool()
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{
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// Allocate the arena - we could add a GLIBCXX_EH_ARENA_SIZE environment
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// to make this tunable.
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arena_size = (EMERGENCY_OBJ_SIZE * EMERGENCY_OBJ_COUNT
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+ EMERGENCY_OBJ_COUNT * sizeof (__cxa_dependent_exception));
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arena = (char *)malloc (arena_size);
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if (!arena)
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{
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// If the allocation failed go without an emergency pool.
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arena_size = 0;
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first_free_entry = NULL;
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return;
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}
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2001-03-28 13:04:51 +02:00
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2015-01-22 10:21:48 +01:00
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// Populate the free-list with a single entry covering the whole arena
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first_free_entry = reinterpret_cast <free_entry *> (arena);
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new (first_free_entry) free_entry;
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first_free_entry->size = arena_size;
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first_free_entry->next = NULL;
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}
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2001-03-28 13:04:51 +02:00
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2015-01-22 10:21:48 +01:00
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void *pool::allocate (std::size_t size)
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{
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__gnu_cxx::__scoped_lock sentry(emergency_mutex);
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2015-01-28 10:53:39 +01:00
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// We need an additional size_t member plus the padding to
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// ensure proper alignment of data.
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size += offsetof (allocated_entry, data);
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2015-01-22 10:21:48 +01:00
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// And we need to at least hand out objects of the size of
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// a freelist entry.
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if (size < sizeof (free_entry))
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size = sizeof (free_entry);
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2015-01-28 10:53:39 +01:00
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// And we need to align objects we hand out to the maximum
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// alignment required on the target (this really aligns the
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2015-01-22 10:21:48 +01:00
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// tail which will become a new freelist entry).
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2015-01-28 10:53:39 +01:00
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size = ((size + __alignof__ (allocated_entry::data) - 1)
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& ~(__alignof__ (allocated_entry::data) - 1));
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2015-01-22 10:21:48 +01:00
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// Search for an entry of proper size on the freelist.
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free_entry **e;
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for (e = &first_free_entry;
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*e && (*e)->size < size;
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e = &(*e)->next)
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;
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if (!*e)
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return NULL;
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allocated_entry *x;
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if ((*e)->size - size >= sizeof (free_entry))
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{
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2017-06-02 10:10:48 +02:00
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// Split block if it is too large.
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2015-01-22 10:21:48 +01:00
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free_entry *f = reinterpret_cast <free_entry *>
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(reinterpret_cast <char *> (*e) + size);
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std::size_t sz = (*e)->size;
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free_entry *next = (*e)->next;
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new (f) free_entry;
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f->next = next;
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f->size = sz - size;
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x = reinterpret_cast <allocated_entry *> (*e);
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new (x) allocated_entry;
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x->size = size;
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*e = f;
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}
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else
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{
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// Exact size match or too small overhead for a free entry.
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std::size_t sz = (*e)->size;
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free_entry *next = (*e)->next;
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x = reinterpret_cast <allocated_entry *> (*e);
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new (x) allocated_entry;
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x->size = sz;
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*e = next;
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}
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return &x->data;
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}
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[multiple changes]
2008-08-23 Paolo Carlini <paolo.carlini@oracle.com>
* testsuite/lib/libstdc++.exp (check_v3_target_atomic_builtins): Add.
* testsuite/lib/dg-options.exp (dg-require-atomic-builtins): Likewise.
* testsuite/18_support/exception_ptr/current_exception.cc: Use it.
* testsuite/18_support/exception_ptr/rethrow_exception.cc: Likewise.
* testsuite/18_support/exception_ptr/lifespan.cc: Likewise.
2008-08-23 Sebastian Redl <sebastian.redl@getdesigned.at>
Add (again) exception propagation support as per N2179. Feature is
available only when _GLIBCXX_ATOMIC_BUILTINS_4 is defined.
* libsupc++/exception_ptr.h (exception_ptr, current_exception,
copy_exception, rethrow_exception): New file, implement exception
propagation.
* libsupc++/eh_ptr.cc (exception_ptr, current_exception,
rethrow_exception, __gxx_dependent_exception_cleanup): Likewise.
* libsupc++/unwind-cxx.h (__cxa_exception): Add reference count.
(__cxa_dependent_exception, __cxa_allocate_dependent_exception,
__cxa_free_dependent_exception, __get_dependent_exception_from_ue,
__GXX_INIT_DEPENDENT_EXCEPTION_CLASS, __is_dependent_exception,
__gxx_dependent_exception_class, __get_object_from_ue,
__get_object_from_ambiguous_exception): Add.
(__GXX_INIT_EXCEPTION_CLASS, __gxx_exception_class): Rename.
(__is_gxx_exception_class): Handle dependent exceptions.
* libsupc++/eh_arm.cc (__cxa_type_match): Likewise.
* libsupc++/eh_call.cc (__cxa_call_unexpected): Likewise.
* libsupc++/eh_personality.cc (__gxx_personality_*): Likewise.
* libsupc++/eh_type.cc (__cxa_current_exception_type): Likewise.
* libsupc++/eh_alloc.cc (__cxa_allocate_dependent_exception,
__cxa_free_dependent_exception): Add.
* libsupc++/eh_throw.cc (__gxx_exception_cleanup): Handle reference
counting.
* libsupc++/exception: Conditionally include exception_ptr.h.
* libsupc++/Makefile.am: Register new files.
* libsupc++/Makefile.in: Regenerate.
* config/abi/pre/gnu.ver: Add new symbols.
* testsuite/18_support/exception_ptr/current_exception.cc: Test the
core functionality of current_exception().
* testsuite/18_support/exception_ptr/rethrow_exception.cc: Test the
core functionality of rethrow_exception().
* testsuite/18_support/exception_ptr/lifespan.cc: Test the life span of
exception objects during exception propagation.
From-SVN: r139509
2008-08-23 13:28:30 +02:00
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2015-01-22 10:21:48 +01:00
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void pool::free (void *data)
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{
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__gnu_cxx::__scoped_lock sentry(emergency_mutex);
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allocated_entry *e = reinterpret_cast <allocated_entry *>
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2015-01-28 10:53:39 +01:00
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(reinterpret_cast <char *> (data) - offsetof (allocated_entry, data));
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2015-01-22 10:21:48 +01:00
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std::size_t sz = e->size;
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2017-06-02 10:10:48 +02:00
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if (!first_free_entry
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|| (reinterpret_cast <char *> (e) + sz
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< reinterpret_cast <char *> (first_free_entry)))
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2015-01-22 10:21:48 +01:00
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{
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2017-06-02 10:10:48 +02:00
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// If the free list is empty or the entry is before the
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// first element and cannot be merged with it add it as
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// the first free entry.
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2015-01-22 10:21:48 +01:00
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free_entry *f = reinterpret_cast <free_entry *> (e);
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new (f) free_entry;
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f->size = sz;
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2017-06-02 10:10:48 +02:00
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f->next = first_free_entry;
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2015-01-22 10:21:48 +01:00
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first_free_entry = f;
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}
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else if (reinterpret_cast <char *> (e) + sz
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== reinterpret_cast <char *> (first_free_entry))
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{
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// Check if we can merge with the first free entry being right
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// after us.
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free_entry *f = reinterpret_cast <free_entry *> (e);
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new (f) free_entry;
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f->size = sz + first_free_entry->size;
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f->next = first_free_entry->next;
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first_free_entry = f;
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}
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else
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{
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// Else search for a free item we can merge with at its end.
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free_entry **fe;
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for (fe = &first_free_entry;
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(*fe)->next
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&& (reinterpret_cast <char *> ((*fe)->next)
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|
|
> reinterpret_cast <char *> (e) + sz);
|
|
|
|
fe = &(*fe)->next)
|
|
|
|
;
|
2017-06-02 10:10:48 +02:00
|
|
|
// If we can merge the next block into us do so and continue
|
|
|
|
// with the cases below.
|
|
|
|
if (reinterpret_cast <char *> (e) + sz
|
|
|
|
== reinterpret_cast <char *> ((*fe)->next))
|
|
|
|
{
|
|
|
|
sz += (*fe)->next->size;
|
|
|
|
(*fe)->next = (*fe)->next->next;
|
|
|
|
}
|
2015-01-22 10:21:48 +01:00
|
|
|
if (reinterpret_cast <char *> (*fe) + (*fe)->size
|
|
|
|
== reinterpret_cast <char *> (e))
|
2017-06-02 10:10:48 +02:00
|
|
|
// Merge with the freelist entry.
|
2015-01-22 10:21:48 +01:00
|
|
|
(*fe)->size += sz;
|
|
|
|
else
|
|
|
|
{
|
|
|
|
// Else put it after it which keeps the freelist sorted.
|
|
|
|
free_entry *f = reinterpret_cast <free_entry *> (e);
|
|
|
|
new (f) free_entry;
|
|
|
|
f->size = sz;
|
|
|
|
f->next = (*fe)->next;
|
|
|
|
(*fe)->next = f;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
bool pool::in_pool (void *ptr)
|
|
|
|
{
|
|
|
|
char *p = reinterpret_cast <char *> (ptr);
|
|
|
|
return (p > arena
|
|
|
|
&& p < arena + arena_size);
|
|
|
|
}
|
|
|
|
|
|
|
|
pool emergency_pool;
|
2001-03-28 13:04:51 +02:00
|
|
|
}
|
|
|
|
|
2016-03-24 19:13:40 +01:00
|
|
|
namespace __gnu_cxx
|
|
|
|
{
|
|
|
|
void
|
|
|
|
__freeres()
|
|
|
|
{
|
|
|
|
if (emergency_pool.arena)
|
|
|
|
{
|
|
|
|
::free(emergency_pool.arena);
|
|
|
|
emergency_pool.arena = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2001-03-28 13:04:51 +02:00
|
|
|
extern "C" void *
|
2011-10-10 21:03:39 +02:00
|
|
|
__cxxabiv1::__cxa_allocate_exception(std::size_t thrown_size) _GLIBCXX_NOTHROW
|
2001-03-28 13:04:51 +02:00
|
|
|
{
|
|
|
|
void *ret;
|
|
|
|
|
2009-01-07 23:50:42 +01:00
|
|
|
thrown_size += sizeof (__cxa_refcounted_exception);
|
2004-08-02 22:28:22 +02:00
|
|
|
ret = malloc (thrown_size);
|
2001-03-28 13:04:51 +02:00
|
|
|
|
2015-01-22 10:21:48 +01:00
|
|
|
if (!ret)
|
|
|
|
ret = emergency_pool.allocate (thrown_size);
|
2006-09-14 11:48:15 +02:00
|
|
|
|
2015-01-22 10:21:48 +01:00
|
|
|
if (!ret)
|
|
|
|
std::terminate ();
|
2001-03-28 13:04:51 +02:00
|
|
|
|
2009-01-07 23:50:42 +01:00
|
|
|
memset (ret, 0, sizeof (__cxa_refcounted_exception));
|
2001-03-28 13:04:51 +02:00
|
|
|
|
2009-01-07 23:50:42 +01:00
|
|
|
return (void *)((char *)ret + sizeof (__cxa_refcounted_exception));
|
2001-03-28 13:04:51 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
extern "C" void
|
2011-10-10 21:03:39 +02:00
|
|
|
__cxxabiv1::__cxa_free_exception(void *vptr) _GLIBCXX_NOTHROW
|
2001-03-28 13:04:51 +02:00
|
|
|
{
|
2015-01-22 10:21:48 +01:00
|
|
|
char *ptr = (char *) vptr - sizeof (__cxa_refcounted_exception);
|
|
|
|
if (emergency_pool.in_pool (ptr))
|
|
|
|
emergency_pool.free (ptr);
|
2001-03-28 13:04:51 +02:00
|
|
|
else
|
2015-01-22 10:21:48 +01:00
|
|
|
free (ptr);
|
2001-03-28 13:04:51 +02:00
|
|
|
}
|
[multiple changes]
2008-08-23 Paolo Carlini <paolo.carlini@oracle.com>
* testsuite/lib/libstdc++.exp (check_v3_target_atomic_builtins): Add.
* testsuite/lib/dg-options.exp (dg-require-atomic-builtins): Likewise.
* testsuite/18_support/exception_ptr/current_exception.cc: Use it.
* testsuite/18_support/exception_ptr/rethrow_exception.cc: Likewise.
* testsuite/18_support/exception_ptr/lifespan.cc: Likewise.
2008-08-23 Sebastian Redl <sebastian.redl@getdesigned.at>
Add (again) exception propagation support as per N2179. Feature is
available only when _GLIBCXX_ATOMIC_BUILTINS_4 is defined.
* libsupc++/exception_ptr.h (exception_ptr, current_exception,
copy_exception, rethrow_exception): New file, implement exception
propagation.
* libsupc++/eh_ptr.cc (exception_ptr, current_exception,
rethrow_exception, __gxx_dependent_exception_cleanup): Likewise.
* libsupc++/unwind-cxx.h (__cxa_exception): Add reference count.
(__cxa_dependent_exception, __cxa_allocate_dependent_exception,
__cxa_free_dependent_exception, __get_dependent_exception_from_ue,
__GXX_INIT_DEPENDENT_EXCEPTION_CLASS, __is_dependent_exception,
__gxx_dependent_exception_class, __get_object_from_ue,
__get_object_from_ambiguous_exception): Add.
(__GXX_INIT_EXCEPTION_CLASS, __gxx_exception_class): Rename.
(__is_gxx_exception_class): Handle dependent exceptions.
* libsupc++/eh_arm.cc (__cxa_type_match): Likewise.
* libsupc++/eh_call.cc (__cxa_call_unexpected): Likewise.
* libsupc++/eh_personality.cc (__gxx_personality_*): Likewise.
* libsupc++/eh_type.cc (__cxa_current_exception_type): Likewise.
* libsupc++/eh_alloc.cc (__cxa_allocate_dependent_exception,
__cxa_free_dependent_exception): Add.
* libsupc++/eh_throw.cc (__gxx_exception_cleanup): Handle reference
counting.
* libsupc++/exception: Conditionally include exception_ptr.h.
* libsupc++/Makefile.am: Register new files.
* libsupc++/Makefile.in: Regenerate.
* config/abi/pre/gnu.ver: Add new symbols.
* testsuite/18_support/exception_ptr/current_exception.cc: Test the
core functionality of current_exception().
* testsuite/18_support/exception_ptr/rethrow_exception.cc: Test the
core functionality of rethrow_exception().
* testsuite/18_support/exception_ptr/lifespan.cc: Test the life span of
exception objects during exception propagation.
From-SVN: r139509
2008-08-23 13:28:30 +02:00
|
|
|
|
|
|
|
|
|
|
|
extern "C" __cxa_dependent_exception*
|
2011-10-10 21:03:39 +02:00
|
|
|
__cxxabiv1::__cxa_allocate_dependent_exception() _GLIBCXX_NOTHROW
|
[multiple changes]
2008-08-23 Paolo Carlini <paolo.carlini@oracle.com>
* testsuite/lib/libstdc++.exp (check_v3_target_atomic_builtins): Add.
* testsuite/lib/dg-options.exp (dg-require-atomic-builtins): Likewise.
* testsuite/18_support/exception_ptr/current_exception.cc: Use it.
* testsuite/18_support/exception_ptr/rethrow_exception.cc: Likewise.
* testsuite/18_support/exception_ptr/lifespan.cc: Likewise.
2008-08-23 Sebastian Redl <sebastian.redl@getdesigned.at>
Add (again) exception propagation support as per N2179. Feature is
available only when _GLIBCXX_ATOMIC_BUILTINS_4 is defined.
* libsupc++/exception_ptr.h (exception_ptr, current_exception,
copy_exception, rethrow_exception): New file, implement exception
propagation.
* libsupc++/eh_ptr.cc (exception_ptr, current_exception,
rethrow_exception, __gxx_dependent_exception_cleanup): Likewise.
* libsupc++/unwind-cxx.h (__cxa_exception): Add reference count.
(__cxa_dependent_exception, __cxa_allocate_dependent_exception,
__cxa_free_dependent_exception, __get_dependent_exception_from_ue,
__GXX_INIT_DEPENDENT_EXCEPTION_CLASS, __is_dependent_exception,
__gxx_dependent_exception_class, __get_object_from_ue,
__get_object_from_ambiguous_exception): Add.
(__GXX_INIT_EXCEPTION_CLASS, __gxx_exception_class): Rename.
(__is_gxx_exception_class): Handle dependent exceptions.
* libsupc++/eh_arm.cc (__cxa_type_match): Likewise.
* libsupc++/eh_call.cc (__cxa_call_unexpected): Likewise.
* libsupc++/eh_personality.cc (__gxx_personality_*): Likewise.
* libsupc++/eh_type.cc (__cxa_current_exception_type): Likewise.
* libsupc++/eh_alloc.cc (__cxa_allocate_dependent_exception,
__cxa_free_dependent_exception): Add.
* libsupc++/eh_throw.cc (__gxx_exception_cleanup): Handle reference
counting.
* libsupc++/exception: Conditionally include exception_ptr.h.
* libsupc++/Makefile.am: Register new files.
* libsupc++/Makefile.in: Regenerate.
* config/abi/pre/gnu.ver: Add new symbols.
* testsuite/18_support/exception_ptr/current_exception.cc: Test the
core functionality of current_exception().
* testsuite/18_support/exception_ptr/rethrow_exception.cc: Test the
core functionality of rethrow_exception().
* testsuite/18_support/exception_ptr/lifespan.cc: Test the life span of
exception objects during exception propagation.
From-SVN: r139509
2008-08-23 13:28:30 +02:00
|
|
|
{
|
|
|
|
__cxa_dependent_exception *ret;
|
|
|
|
|
|
|
|
ret = static_cast<__cxa_dependent_exception*>
|
|
|
|
(malloc (sizeof (__cxa_dependent_exception)));
|
|
|
|
|
|
|
|
if (!ret)
|
2015-01-22 10:21:48 +01:00
|
|
|
ret = static_cast <__cxa_dependent_exception*>
|
|
|
|
(emergency_pool.allocate (sizeof (__cxa_dependent_exception)));
|
[multiple changes]
2008-08-23 Paolo Carlini <paolo.carlini@oracle.com>
* testsuite/lib/libstdc++.exp (check_v3_target_atomic_builtins): Add.
* testsuite/lib/dg-options.exp (dg-require-atomic-builtins): Likewise.
* testsuite/18_support/exception_ptr/current_exception.cc: Use it.
* testsuite/18_support/exception_ptr/rethrow_exception.cc: Likewise.
* testsuite/18_support/exception_ptr/lifespan.cc: Likewise.
2008-08-23 Sebastian Redl <sebastian.redl@getdesigned.at>
Add (again) exception propagation support as per N2179. Feature is
available only when _GLIBCXX_ATOMIC_BUILTINS_4 is defined.
* libsupc++/exception_ptr.h (exception_ptr, current_exception,
copy_exception, rethrow_exception): New file, implement exception
propagation.
* libsupc++/eh_ptr.cc (exception_ptr, current_exception,
rethrow_exception, __gxx_dependent_exception_cleanup): Likewise.
* libsupc++/unwind-cxx.h (__cxa_exception): Add reference count.
(__cxa_dependent_exception, __cxa_allocate_dependent_exception,
__cxa_free_dependent_exception, __get_dependent_exception_from_ue,
__GXX_INIT_DEPENDENT_EXCEPTION_CLASS, __is_dependent_exception,
__gxx_dependent_exception_class, __get_object_from_ue,
__get_object_from_ambiguous_exception): Add.
(__GXX_INIT_EXCEPTION_CLASS, __gxx_exception_class): Rename.
(__is_gxx_exception_class): Handle dependent exceptions.
* libsupc++/eh_arm.cc (__cxa_type_match): Likewise.
* libsupc++/eh_call.cc (__cxa_call_unexpected): Likewise.
* libsupc++/eh_personality.cc (__gxx_personality_*): Likewise.
* libsupc++/eh_type.cc (__cxa_current_exception_type): Likewise.
* libsupc++/eh_alloc.cc (__cxa_allocate_dependent_exception,
__cxa_free_dependent_exception): Add.
* libsupc++/eh_throw.cc (__gxx_exception_cleanup): Handle reference
counting.
* libsupc++/exception: Conditionally include exception_ptr.h.
* libsupc++/Makefile.am: Register new files.
* libsupc++/Makefile.in: Regenerate.
* config/abi/pre/gnu.ver: Add new symbols.
* testsuite/18_support/exception_ptr/current_exception.cc: Test the
core functionality of current_exception().
* testsuite/18_support/exception_ptr/rethrow_exception.cc: Test the
core functionality of rethrow_exception().
* testsuite/18_support/exception_ptr/lifespan.cc: Test the life span of
exception objects during exception propagation.
From-SVN: r139509
2008-08-23 13:28:30 +02:00
|
|
|
|
2015-01-22 10:21:48 +01:00
|
|
|
if (!ret)
|
|
|
|
std::terminate ();
|
[multiple changes]
2008-08-23 Paolo Carlini <paolo.carlini@oracle.com>
* testsuite/lib/libstdc++.exp (check_v3_target_atomic_builtins): Add.
* testsuite/lib/dg-options.exp (dg-require-atomic-builtins): Likewise.
* testsuite/18_support/exception_ptr/current_exception.cc: Use it.
* testsuite/18_support/exception_ptr/rethrow_exception.cc: Likewise.
* testsuite/18_support/exception_ptr/lifespan.cc: Likewise.
2008-08-23 Sebastian Redl <sebastian.redl@getdesigned.at>
Add (again) exception propagation support as per N2179. Feature is
available only when _GLIBCXX_ATOMIC_BUILTINS_4 is defined.
* libsupc++/exception_ptr.h (exception_ptr, current_exception,
copy_exception, rethrow_exception): New file, implement exception
propagation.
* libsupc++/eh_ptr.cc (exception_ptr, current_exception,
rethrow_exception, __gxx_dependent_exception_cleanup): Likewise.
* libsupc++/unwind-cxx.h (__cxa_exception): Add reference count.
(__cxa_dependent_exception, __cxa_allocate_dependent_exception,
__cxa_free_dependent_exception, __get_dependent_exception_from_ue,
__GXX_INIT_DEPENDENT_EXCEPTION_CLASS, __is_dependent_exception,
__gxx_dependent_exception_class, __get_object_from_ue,
__get_object_from_ambiguous_exception): Add.
(__GXX_INIT_EXCEPTION_CLASS, __gxx_exception_class): Rename.
(__is_gxx_exception_class): Handle dependent exceptions.
* libsupc++/eh_arm.cc (__cxa_type_match): Likewise.
* libsupc++/eh_call.cc (__cxa_call_unexpected): Likewise.
* libsupc++/eh_personality.cc (__gxx_personality_*): Likewise.
* libsupc++/eh_type.cc (__cxa_current_exception_type): Likewise.
* libsupc++/eh_alloc.cc (__cxa_allocate_dependent_exception,
__cxa_free_dependent_exception): Add.
* libsupc++/eh_throw.cc (__gxx_exception_cleanup): Handle reference
counting.
* libsupc++/exception: Conditionally include exception_ptr.h.
* libsupc++/Makefile.am: Register new files.
* libsupc++/Makefile.in: Regenerate.
* config/abi/pre/gnu.ver: Add new symbols.
* testsuite/18_support/exception_ptr/current_exception.cc: Test the
core functionality of current_exception().
* testsuite/18_support/exception_ptr/rethrow_exception.cc: Test the
core functionality of rethrow_exception().
* testsuite/18_support/exception_ptr/lifespan.cc: Test the life span of
exception objects during exception propagation.
From-SVN: r139509
2008-08-23 13:28:30 +02:00
|
|
|
|
|
|
|
memset (ret, 0, sizeof (__cxa_dependent_exception));
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
extern "C" void
|
|
|
|
__cxxabiv1::__cxa_free_dependent_exception
|
2011-10-10 21:03:39 +02:00
|
|
|
(__cxa_dependent_exception *vptr) _GLIBCXX_NOTHROW
|
[multiple changes]
2008-08-23 Paolo Carlini <paolo.carlini@oracle.com>
* testsuite/lib/libstdc++.exp (check_v3_target_atomic_builtins): Add.
* testsuite/lib/dg-options.exp (dg-require-atomic-builtins): Likewise.
* testsuite/18_support/exception_ptr/current_exception.cc: Use it.
* testsuite/18_support/exception_ptr/rethrow_exception.cc: Likewise.
* testsuite/18_support/exception_ptr/lifespan.cc: Likewise.
2008-08-23 Sebastian Redl <sebastian.redl@getdesigned.at>
Add (again) exception propagation support as per N2179. Feature is
available only when _GLIBCXX_ATOMIC_BUILTINS_4 is defined.
* libsupc++/exception_ptr.h (exception_ptr, current_exception,
copy_exception, rethrow_exception): New file, implement exception
propagation.
* libsupc++/eh_ptr.cc (exception_ptr, current_exception,
rethrow_exception, __gxx_dependent_exception_cleanup): Likewise.
* libsupc++/unwind-cxx.h (__cxa_exception): Add reference count.
(__cxa_dependent_exception, __cxa_allocate_dependent_exception,
__cxa_free_dependent_exception, __get_dependent_exception_from_ue,
__GXX_INIT_DEPENDENT_EXCEPTION_CLASS, __is_dependent_exception,
__gxx_dependent_exception_class, __get_object_from_ue,
__get_object_from_ambiguous_exception): Add.
(__GXX_INIT_EXCEPTION_CLASS, __gxx_exception_class): Rename.
(__is_gxx_exception_class): Handle dependent exceptions.
* libsupc++/eh_arm.cc (__cxa_type_match): Likewise.
* libsupc++/eh_call.cc (__cxa_call_unexpected): Likewise.
* libsupc++/eh_personality.cc (__gxx_personality_*): Likewise.
* libsupc++/eh_type.cc (__cxa_current_exception_type): Likewise.
* libsupc++/eh_alloc.cc (__cxa_allocate_dependent_exception,
__cxa_free_dependent_exception): Add.
* libsupc++/eh_throw.cc (__gxx_exception_cleanup): Handle reference
counting.
* libsupc++/exception: Conditionally include exception_ptr.h.
* libsupc++/Makefile.am: Register new files.
* libsupc++/Makefile.in: Regenerate.
* config/abi/pre/gnu.ver: Add new symbols.
* testsuite/18_support/exception_ptr/current_exception.cc: Test the
core functionality of current_exception().
* testsuite/18_support/exception_ptr/rethrow_exception.cc: Test the
core functionality of rethrow_exception().
* testsuite/18_support/exception_ptr/lifespan.cc: Test the life span of
exception objects during exception propagation.
From-SVN: r139509
2008-08-23 13:28:30 +02:00
|
|
|
{
|
2015-01-22 10:21:48 +01:00
|
|
|
if (emergency_pool.in_pool (vptr))
|
|
|
|
emergency_pool.free (vptr);
|
[multiple changes]
2008-08-23 Paolo Carlini <paolo.carlini@oracle.com>
* testsuite/lib/libstdc++.exp (check_v3_target_atomic_builtins): Add.
* testsuite/lib/dg-options.exp (dg-require-atomic-builtins): Likewise.
* testsuite/18_support/exception_ptr/current_exception.cc: Use it.
* testsuite/18_support/exception_ptr/rethrow_exception.cc: Likewise.
* testsuite/18_support/exception_ptr/lifespan.cc: Likewise.
2008-08-23 Sebastian Redl <sebastian.redl@getdesigned.at>
Add (again) exception propagation support as per N2179. Feature is
available only when _GLIBCXX_ATOMIC_BUILTINS_4 is defined.
* libsupc++/exception_ptr.h (exception_ptr, current_exception,
copy_exception, rethrow_exception): New file, implement exception
propagation.
* libsupc++/eh_ptr.cc (exception_ptr, current_exception,
rethrow_exception, __gxx_dependent_exception_cleanup): Likewise.
* libsupc++/unwind-cxx.h (__cxa_exception): Add reference count.
(__cxa_dependent_exception, __cxa_allocate_dependent_exception,
__cxa_free_dependent_exception, __get_dependent_exception_from_ue,
__GXX_INIT_DEPENDENT_EXCEPTION_CLASS, __is_dependent_exception,
__gxx_dependent_exception_class, __get_object_from_ue,
__get_object_from_ambiguous_exception): Add.
(__GXX_INIT_EXCEPTION_CLASS, __gxx_exception_class): Rename.
(__is_gxx_exception_class): Handle dependent exceptions.
* libsupc++/eh_arm.cc (__cxa_type_match): Likewise.
* libsupc++/eh_call.cc (__cxa_call_unexpected): Likewise.
* libsupc++/eh_personality.cc (__gxx_personality_*): Likewise.
* libsupc++/eh_type.cc (__cxa_current_exception_type): Likewise.
* libsupc++/eh_alloc.cc (__cxa_allocate_dependent_exception,
__cxa_free_dependent_exception): Add.
* libsupc++/eh_throw.cc (__gxx_exception_cleanup): Handle reference
counting.
* libsupc++/exception: Conditionally include exception_ptr.h.
* libsupc++/Makefile.am: Register new files.
* libsupc++/Makefile.in: Regenerate.
* config/abi/pre/gnu.ver: Add new symbols.
* testsuite/18_support/exception_ptr/current_exception.cc: Test the
core functionality of current_exception().
* testsuite/18_support/exception_ptr/rethrow_exception.cc: Test the
core functionality of rethrow_exception().
* testsuite/18_support/exception_ptr/lifespan.cc: Test the life span of
exception objects during exception propagation.
From-SVN: r139509
2008-08-23 13:28:30 +02:00
|
|
|
else
|
|
|
|
free (vptr);
|
|
|
|
}
|