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re PR libstdc++/61841 (broken std::thread on Hurd)

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PR libstdc++/61841
	* include/std/thread (thread::_M_start_thread): Declare new overload.
	(thread::thread<_Callable, _Args...>): Call new overload with an
	explicit reference to pthread_create.
	* src/c++11/thread.cc (thread::_M_start_thread): Add new overload.
	* config/abi/pre/gnu.ver: Export new function.

From-SVN: r213922
This commit is contained in:
Jonathan Wakely 2014-08-13 19:40:10 +01:00 • committed by Jonathan Wakely
parent d2f2e467c0
commit c6b3f349f5
4 changed files with 29 additions and 0 deletions
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9
libstdc++-v3/ChangeLog
View file

@ -1,3 +1,12 @@
2014-08-13 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/61841
* include/std/thread (thread::_M_start_thread): Declare new overload.
(thread::thread<_Callable, _Args...>): Call new overload with an
explicit reference to pthread_create.
* src/c++11/thread.cc (thread::_M_start_thread): Add new overload.
* config/abi/pre/gnu.ver: Export new function.
2014-08-13 Sylvestre Ledru <sylvestre@debian.org>
* include/profile/impl/profiler_hash_func.h: Fix a comment typo

3
libstdc++-v3/config/abi/pre/gnu.ver
View file

@ -1372,6 +1372,9 @@ GLIBCXX_3.4.21 {
# std::regex_error::regex_error(std::regex_constants::error_type)
_ZNSt11regex_errorC2ENSt15regex_constants10error_typeE;
# void std::thread::_M_start_thread(__shared_base_type, void(*)())
_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEEPFvvE;
} GLIBCXX_3.4.20;

11
libstdc++-v3/include/std/thread
View file

@ -132,9 +132,17 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
explicit
thread(_Callable&& __f, _Args&&... __args)
{
#ifdef GTHR_ACTIVE_PROXY
// Create a reference to pthread_create, not just the gthr weak symbol
_M_start_thread(_M_make_routine(std::__bind_simple(
std::forward<_Callable>(__f),
std::forward<_Args>(__args)...)),
reinterpret_cast<void(*)()>(&pthread_create));
#else
_M_start_thread(_M_make_routine(std::__bind_simple(
std::forward<_Callable>(__f),
std::forward<_Args>(__args)...)));
#endif
}
~thread()
@ -182,6 +190,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
hardware_concurrency() noexcept;
private:
void
_M_start_thread(__shared_base_type, void (*)());
void
_M_start_thread(__shared_base_type);

6
libstdc++-v3/src/c++11/thread.cc
View file

@ -137,6 +137,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
__throw_system_error(int(errc::operation_not_permitted));
#endif
_M_start_thread(__b, nullptr);
}
void
thread::_M_start_thread(__shared_base_type __b, void (*)())
{
__b->_M_this_ptr = __b;
int __e = __gthread_create(&_M_id._M_thread,
&execute_native_thread_routine, __b.get());