https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64735
--- Comment #11 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Wed Jan 4 10:54:59 2017 New Revision: 244051 URL: https://gcc.gnu.org/viewcvs?rev=244051&root=gcc&view=rev Log: Support exception propagation without lock-free atomic int 2017-01-04 Pauli Nieminen <suok...@gmail.com> Jonathan Wakely <jwak...@redhat.com> PR libstdc++/64735 * acinclude.m4 (GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER): Define. * config.h.in: Regenerate. * config/abi/pre/gnu.ver [HAVE_EXCEPTION_PTR_SINCE_GCC46] (GLIBCXX_3.4.15, GLIBCXX_3.4.21, CXXABI_1.3.3, CXXABI_1.3.5): Make exports for exception_ptr, nested_exception, and future conditional. [HAVE_EXCEPTION_PTR_SINCE_GCC46] (GLIBCXX_3.4.23, CXXABI_1.3.11): Add exports for exception_ptr, nested_exception, and future conditional. * configure: Regenerate. * configure.ac: Use GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER. * include/std/future: Remove check for ATOMIC_INT_LOCK_FREE * libsupc++/eh_atomics.h: New file for internal use only. (__eh_atomic_inc, __eh_atomic_dec): New. * libsupc++/eh_ptr.cc (exception_ptr::_M_addref) (exception_ptr::_M_release) (__gxx_dependent_exception_cleanup) (rethrow_exception): Use eh_atomics.h reference counting helpers. * libsupc++/eh_throw.cc (__gxx_exception_cleanup): Likewise. * libsupc++/eh_tm.cc (free_any_cxa_exception): Likewise. * libsupc++/exception: Remove check for ATOMIC_INT_LOCK_FREE. * libsupc++/exception_ptr.h: Likewise. * libsupc++/guard.cc: Include header for ATOMIC_INT_LOCK_FREE macro. * libsupc++/nested_exception.cc: Remove check for ATOMIC_INT_LOCK_FREE. * libsupc++/nested_exception.h: Likewise. * src/c++11/future.cc: Likewise. * testsuite/18_support/exception_ptr/*: Remove atomic builtins checks. * testsuite/18_support/nested_exception/*: Likewise. * testsuite/30_threads/async/*: Likewise. * testsuite/30_threads/future/*: Likewise. * testsuite/30_threads/headers/future/types_std_c++0x.cc: Likewise. * testsuite/30_threads/packaged_task/*: Likewise. * testsuite/30_threads/promise/*: Likewise. * testsuite/30_threads/shared_future/*: Likewise. Added: trunk/libstdc++-v3/libsupc++/eh_atomics.h Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/acinclude.m4 trunk/libstdc++-v3/config.h.in trunk/libstdc++-v3/config/abi/pre/gnu.ver trunk/libstdc++-v3/configure trunk/libstdc++-v3/configure.ac trunk/libstdc++-v3/include/std/future trunk/libstdc++-v3/libsupc++/eh_ptr.cc trunk/libstdc++-v3/libsupc++/eh_throw.cc trunk/libstdc++-v3/libsupc++/eh_tm.cc trunk/libstdc++-v3/libsupc++/exception trunk/libstdc++-v3/libsupc++/exception_ptr.h trunk/libstdc++-v3/libsupc++/guard.cc trunk/libstdc++-v3/libsupc++/nested_exception.cc trunk/libstdc++-v3/libsupc++/nested_exception.h trunk/libstdc++-v3/src/c++11/future.cc trunk/libstdc++-v3/testsuite/18_support/exception_ptr/40296.cc trunk/libstdc++-v3/testsuite/18_support/exception_ptr/60612-terminate.cc trunk/libstdc++-v3/testsuite/18_support/exception_ptr/60612-unexpected.cc trunk/libstdc++-v3/testsuite/18_support/exception_ptr/62258.cc trunk/libstdc++-v3/testsuite/18_support/exception_ptr/64241.cc trunk/libstdc++-v3/testsuite/18_support/exception_ptr/current_exception.cc trunk/libstdc++-v3/testsuite/18_support/exception_ptr/lifespan.cc trunk/libstdc++-v3/testsuite/18_support/exception_ptr/make_exception_ptr.cc trunk/libstdc++-v3/testsuite/18_support/exception_ptr/make_exception_ptr_2.cc trunk/libstdc++-v3/testsuite/18_support/exception_ptr/move.cc trunk/libstdc++-v3/testsuite/18_support/exception_ptr/requirements.cc trunk/libstdc++-v3/testsuite/18_support/exception_ptr/requirements_neg.cc trunk/libstdc++-v3/testsuite/18_support/exception_ptr/rethrow_exception.cc trunk/libstdc++-v3/testsuite/18_support/nested_exception/51438.cc trunk/libstdc++-v3/testsuite/18_support/nested_exception/62154.cc trunk/libstdc++-v3/testsuite/18_support/nested_exception/68139.cc trunk/libstdc++-v3/testsuite/18_support/nested_exception/cons.cc trunk/libstdc++-v3/testsuite/18_support/nested_exception/nested_ptr.cc trunk/libstdc++-v3/testsuite/18_support/nested_exception/rethrow_if_nested.cc trunk/libstdc++-v3/testsuite/18_support/nested_exception/rethrow_nested.cc trunk/libstdc++-v3/testsuite/18_support/nested_exception/throw_with_nested.cc trunk/libstdc++-v3/testsuite/30_threads/async/42819.cc trunk/libstdc++-v3/testsuite/30_threads/async/49668.cc trunk/libstdc++-v3/testsuite/30_threads/async/54297.cc trunk/libstdc++-v3/testsuite/30_threads/async/any.cc trunk/libstdc++-v3/testsuite/30_threads/async/async.cc trunk/libstdc++-v3/testsuite/30_threads/async/except.cc trunk/libstdc++-v3/testsuite/30_threads/async/forced_unwind.cc trunk/libstdc++-v3/testsuite/30_threads/async/launch.cc trunk/libstdc++-v3/testsuite/30_threads/async/lwg2021.cc trunk/libstdc++-v3/testsuite/30_threads/async/sync.cc trunk/libstdc++-v3/testsuite/30_threads/future/cons/assign_neg.cc trunk/libstdc++-v3/testsuite/30_threads/future/cons/constexpr.cc trunk/libstdc++-v3/testsuite/30_threads/future/cons/copy_neg.cc trunk/libstdc++-v3/testsuite/30_threads/future/cons/default.cc trunk/libstdc++-v3/testsuite/30_threads/future/cons/move.cc trunk/libstdc++-v3/testsuite/30_threads/future/cons/move_assign.cc trunk/libstdc++-v3/testsuite/30_threads/future/members/45133.cc trunk/libstdc++-v3/testsuite/30_threads/future/members/get.cc trunk/libstdc++-v3/testsuite/30_threads/future/members/get2.cc trunk/libstdc++-v3/testsuite/30_threads/future/members/share.cc trunk/libstdc++-v3/testsuite/30_threads/future/members/valid.cc trunk/libstdc++-v3/testsuite/30_threads/future/members/wait.cc trunk/libstdc++-v3/testsuite/30_threads/future/members/wait_for.cc trunk/libstdc++-v3/testsuite/30_threads/future/members/wait_until.cc trunk/libstdc++-v3/testsuite/30_threads/future/requirements/explicit_instantiation.cc trunk/libstdc++-v3/testsuite/30_threads/headers/future/types_std_c++0x.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/49668.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/60564.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/cons/1.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/cons/2.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/cons/3.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/cons/56492.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/cons/alloc.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/cons/alloc2.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/cons/alloc_min.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/cons/assign_neg.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/cons/copy_neg.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/cons/move.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/cons/move_assign.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/forced_unwind.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/members/at_thread_exit.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/members/get_future.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/members/get_future2.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke2.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke3.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke4.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke5.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/members/reset.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/members/reset2.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/members/swap.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/members/valid.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/requirements/explicit_instantiation.cc trunk/libstdc++-v3/testsuite/30_threads/packaged_task/uses_allocator.cc trunk/libstdc++-v3/testsuite/30_threads/promise/60966.cc trunk/libstdc++-v3/testsuite/30_threads/promise/69106.cc trunk/libstdc++-v3/testsuite/30_threads/promise/cons/1.cc trunk/libstdc++-v3/testsuite/30_threads/promise/cons/alloc.cc trunk/libstdc++-v3/testsuite/30_threads/promise/cons/alloc2.cc trunk/libstdc++-v3/testsuite/30_threads/promise/cons/alloc_min.cc trunk/libstdc++-v3/testsuite/30_threads/promise/cons/assign_neg.cc trunk/libstdc++-v3/testsuite/30_threads/promise/cons/copy_neg.cc trunk/libstdc++-v3/testsuite/30_threads/promise/cons/move.cc trunk/libstdc++-v3/testsuite/30_threads/promise/cons/move_assign.cc trunk/libstdc++-v3/testsuite/30_threads/promise/members/at_thread_exit.cc trunk/libstdc++-v3/testsuite/30_threads/promise/members/get_future.cc trunk/libstdc++-v3/testsuite/30_threads/promise/members/get_future2.cc trunk/libstdc++-v3/testsuite/30_threads/promise/members/set_exception.cc trunk/libstdc++-v3/testsuite/30_threads/promise/members/set_exception2.cc trunk/libstdc++-v3/testsuite/30_threads/promise/members/set_value.cc trunk/libstdc++-v3/testsuite/30_threads/promise/members/set_value2.cc trunk/libstdc++-v3/testsuite/30_threads/promise/members/set_value3.cc trunk/libstdc++-v3/testsuite/30_threads/promise/members/swap.cc trunk/libstdc++-v3/testsuite/30_threads/promise/requirements/explicit_instantiation.cc trunk/libstdc++-v3/testsuite/30_threads/promise/uses_allocator.cc trunk/libstdc++-v3/testsuite/30_threads/shared_future/cons/assign.cc trunk/libstdc++-v3/testsuite/30_threads/shared_future/cons/constexpr.cc trunk/libstdc++-v3/testsuite/30_threads/shared_future/cons/copy.cc trunk/libstdc++-v3/testsuite/30_threads/shared_future/cons/default.cc trunk/libstdc++-v3/testsuite/30_threads/shared_future/cons/move.cc trunk/libstdc++-v3/testsuite/30_threads/shared_future/cons/move_assign.cc trunk/libstdc++-v3/testsuite/30_threads/shared_future/members/45133.cc trunk/libstdc++-v3/testsuite/30_threads/shared_future/members/get.cc trunk/libstdc++-v3/testsuite/30_threads/shared_future/members/get2.cc trunk/libstdc++-v3/testsuite/30_threads/shared_future/members/valid.cc trunk/libstdc++-v3/testsuite/30_threads/shared_future/members/wait.cc trunk/libstdc++-v3/testsuite/30_threads/shared_future/members/wait_for.cc trunk/libstdc++-v3/testsuite/30_threads/shared_future/members/wait_until.cc trunk/libstdc++-v3/testsuite/30_threads/shared_future/requirements/explicit_instantiation.cc
