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

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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
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// -*- C++ -*- Implement the members of exception_ptr.
// Copyright (C) 2008, 2009 Free Software Foundation, Inc.
[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
//
// 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)
[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
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// 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.
[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
// 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/>.
[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
#include <bits/c++config.h>
#ifdef _GLIBCXX_ATOMIC_BUILTINS_4
#include <exception>
#include <exception_ptr.h>
#include "unwind-cxx.h"
using namespace __cxxabiv1;
std::__exception_ptr::exception_ptr::exception_ptr() throw()
: _M_exception_object(0)
{
}
std::__exception_ptr::exception_ptr::exception_ptr(void* obj) throw()
: _M_exception_object(obj)
{
_M_addref();
}
std::__exception_ptr::exception_ptr::exception_ptr(__safe_bool) throw()
: _M_exception_object(0)
{
}
std::__exception_ptr::exception_ptr::exception_ptr(
const exception_ptr& other) throw()
: _M_exception_object(other._M_exception_object)
{
_M_addref();
}
std::__exception_ptr::exception_ptr::~exception_ptr() throw()
{
_M_release();
}
std::__exception_ptr::exception_ptr&
std::__exception_ptr::exception_ptr::operator=(
const exception_ptr& other) throw()
{
exception_ptr(other).swap(*this);
return *this;
}
void
std::__exception_ptr::exception_ptr::_M_addref() throw()
{
if (_M_exception_object)
{
__cxa_refcounted_exception *eh =
__get_refcounted_exception_header_from_obj (_M_exception_object);
[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
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__sync_add_and_fetch (&eh->referenceCount, 1);
}
}
void
std::__exception_ptr::exception_ptr::_M_release() throw()
{
if (_M_exception_object)
{
__cxa_refcounted_exception *eh =
__get_refcounted_exception_header_from_obj (_M_exception_object);
[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
if (__sync_sub_and_fetch (&eh->referenceCount, 1) == 0)
{
if (eh->exc.exceptionDestructor)
eh->exc.exceptionDestructor (_M_exception_object);
[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
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__cxa_free_exception (_M_exception_object);
_M_exception_object = 0;
}
}
}
void*
std::__exception_ptr::exception_ptr::_M_get() const throw()
{
return _M_exception_object;
}
void
std::__exception_ptr::exception_ptr::_M_safe_bool_dummy() throw ()
[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
{
}
void
std::__exception_ptr::exception_ptr::swap(exception_ptr &other) throw()
{
void *tmp = _M_exception_object;
_M_exception_object = other._M_exception_object;
other._M_exception_object = tmp;
}
bool
std::__exception_ptr::exception_ptr::operator!() const throw()
{
return _M_exception_object == 0;
}
std::__exception_ptr::exception_ptr::operator __safe_bool() const throw()
{
return _M_exception_object ? &exception_ptr::_M_safe_bool_dummy : 0;
}
const std::type_info*
std::__exception_ptr::exception_ptr::__cxa_exception_type() const throw()
{
__cxa_exception *eh = __get_exception_header_from_obj (_M_exception_object);
return eh->exceptionType;
}
bool std::__exception_ptr::operator==(const exception_ptr& lhs,
const exception_ptr& rhs) throw()
{
return lhs._M_exception_object == rhs._M_exception_object;
}
bool std::__exception_ptr::operator!=(const exception_ptr& lhs,
const exception_ptr& rhs) throw()
{
return !(lhs == rhs);
}
std::exception_ptr
std::current_exception() throw()
{
__cxa_eh_globals *globals = __cxa_get_globals ();
__cxa_exception *header = globals->caughtExceptions;
if (!header)
return std::exception_ptr();
// Since foreign exceptions can't be counted, we can't return them.
if (!__is_gxx_exception_class (header->unwindHeader.exception_class))
return std::exception_ptr();
return std::exception_ptr(
__get_object_from_ambiguous_exception (header));
}
static void
__gxx_dependent_exception_cleanup (_Unwind_Reason_Code code,
_Unwind_Exception *exc)
{
// This cleanup is set only for dependents.
__cxa_dependent_exception *dep = __get_dependent_exception_from_ue (exc);
__cxa_refcounted_exception *header =
__get_refcounted_exception_header_from_obj (dep->primaryException);
[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
// We only want to be called through _Unwind_DeleteException.
// _Unwind_DeleteException in the HP-UX IA64 libunwind library
// returns _URC_NO_REASON and not _URC_FOREIGN_EXCEPTION_CAUGHT
// like the GCC _Unwind_DeleteException function does.
if (code != _URC_FOREIGN_EXCEPTION_CAUGHT && code != _URC_NO_REASON)
__terminate (header->exc.terminateHandler);
[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_free_dependent_exception (dep);
if (__sync_sub_and_fetch (&header->referenceCount, 1) == 0)
{
if (header->exc.exceptionDestructor)
header->exc.exceptionDestructor (header + 1);
[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_free_exception (header + 1);
}
}
void
std::rethrow_exception(std::exception_ptr ep)
{
void *obj = ep._M_get();
__cxa_refcounted_exception *eh
= __get_refcounted_exception_header_from_obj (obj);
[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 *dep = __cxa_allocate_dependent_exception ();
dep->primaryException = obj;
__sync_add_and_fetch (&eh->referenceCount, 1);
dep->unexpectedHandler = __unexpected_handler;
dep->terminateHandler = __terminate_handler;
__GXX_INIT_DEPENDENT_EXCEPTION_CLASS(dep->unwindHeader.exception_class);
dep->unwindHeader.exception_cleanup = __gxx_dependent_exception_cleanup;
#ifdef _GLIBCXX_SJLJ_EXCEPTIONS
_Unwind_SjLj_RaiseException (&dep->unwindHeader);
#else
_Unwind_RaiseException (&dep->unwindHeader);
#endif
// Some sort of unwinding error. Note that terminate is a handler.
__cxa_begin_catch (&dep->unwindHeader);
std::terminate ();
}
#endif