Commit Graph

19 Commits

Author SHA1 Message Date
Jonathan Wakely 2bddc50958 re PR libstdc++/43863 (Unused recursive_init_error class defined with -fno-exceptions)
2011-02-09  Jonathan Wakely  <jwakely.gcc@gmail.com>

	PR libstdc++/43863
	* libsupc++/guard.cc (recursive_init_error::~recursive_init_error):
	Move to ...
	* libsupc++/guard_error.cc: ... new file.
	* libsupc++/Makefile.am: Update.
	* libsupc++/Makefile.in: Regenerate.

From-SVN: r169989
2011-02-09 23:22:27 +00:00
Benjamin Kosnik 8eead16e5e user.cfg.in: Regenerate, add files.
2009-11-09  Benjamin Kosnik  <bkoz@redhat.com>

	* doc/doxygen/user.cfg.in: Regenerate, add files.
	* libsupc++/eh_ptr.cc: Format.
	* libsupc++/exception_ptr.h: Same.
	* libsupc++/cxxabi.h(recursive_init_error): Move declaration here.
	* libsupc++/guard.cc: From here.
	* libsupc++/nested_exception.h: Add markup.

From-SVN: r154054
2009-11-09 22:09:30 +00:00
Jan Hubicka 5cf217fff1 * eh_type.cc (__cxa_current_exception_type) Mark throw().
* unwind-cxx.h (__cxa_get_globals, __cxa_get_globals_fast): Mark const.
	(__cxa_get_exception_ptr): Mark pure.
	(__cxa_bad_cast, __cxa_bad_typeid): Mark noreturn
	(__terminate): Makr throw ().
	* exception (terminate): Mark throw().
	(uncaught_exception): Mark pure.
	* eh_ptr.cc (_M_safe_bool_dummy): Mark throw().
	* guard.cc (__cxa_guard_abort, __cxa_guard_release): Mark throw().
	* eh_terminate.cc (__terminate, terminate): Mark throw().
	* vec.cc (__cxa_vec_cleanup): Mark throw().
	* cxxabi.h (__cxa_vec_cleanup, __cxa_guard_release, __cxa_guard_abort): Mark throw ().
	(__cxa_pure_virtual): Mark noreturn.
	(__cxa_current_exception_type): Mark throw and pure.
	* exception_ptr.h (operator ==, !=, _M_get, !, ==,
	__cxa_exception_type): Mark pure.
	(_M_safe_bool_dummy): Mark pure and const.

From-SVN: r146331
2009-04-18 22:18:21 +00:00
Jakub Jelinek 748086b7b2 Licensing changes to GPLv3 resp. GPLv3 with GCC Runtime Exception.
From-SVN: r145841
2009-04-09 17:00:19 +02:00
Benjamin Kosnik 35648b4572 acinclude.m4 (GLIBCXX_ENABLE_ATOMIC_BUILTINS): Check for set of all used __sync builtins, in two sizes.
2008-04-24  Benjamin Kosnik  <bkoz@redhat.com>

	* acinclude.m4 (GLIBCXX_ENABLE_ATOMIC_BUILTINS): Check for set of
	all used __sync builtins, in two sizes.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* src/atomic.cc: Use  _GLIBCXX_ATOMIC_BUILTINS_1.
	* include/ext/atomicity.h: Use  _GLIBCXX_ATOMIC_BUILTINS_4.
	* libsupc++/guard.cc: Use  _GLIBCXX_ATOMIC_BUILTINS_4.
	* doc/xml/manual/concurrency.xm: Update docs.

From-SVN: r134629
2008-04-24 14:40:29 +00:00
Jakub Jelinek 0f3e711eef configure.ac (--enable-linux-futex): Add new configure option.
libstdc++-v3/
	* configure.ac (--enable-linux-futex): Add new configure option.
	(HAVE_LINUX_FUTEX): New AC_DEFINE.
	* Makefile.in: Rebuilt.
	* aclocal.m4: Rebuilt.
	* configure: Rebuilt.
	* config.h.in: Rebuilt.
	* config/cpu/generic/cxxabi_tweaks.h (_GLIBCXX_GUARD_BIT,
	_GLIBCXX_GUARD_PENDING_BIT, _GLIBCXX_GUARD_WAITING_BIT): Define.
	* config/cpu/arm/cxxabi_tweaks.h (_GLIBCXX_GUARD_BIT,
	_GLIBCXX_GUARD_PENDING_BIT, _GLIBCXX_GUARD_WAITING_BIT): Define.
	* libsupc++/guard.cc: Include climits and syscall.h.
	(_GLIBCXX_USE_FUTEX): Define if futex syscall and atomic builtins
	are supported.
	(_GLIBCXX_FUTEX_WAIT, _GLIBCXX_FUTEX_WAKE): Likewise.
	(__guard_test_bit): New static inline.
	(__cxa_guard_acquire, __cxa_guard_release, __cxa_guard_abort): Use
	atomic builtins and futex syscall if _GLIBCXX_USE_FUTEX.
config/
	* futex.m4: New file.
libgomp/
	* configure.ac: Move futex checking into ../config/futex.m4.
	* configure: Rebuilt.
	* aclocal.m4: Rebuilt.
	* Makefile.in: Rebuilt.

	* configure.tgt: Rename have_tls to gcc_cv_have_tls to match
	2007-10-15 ../config/tls.m4 change.

From-SVN: r131399
2008-01-08 17:14:49 +01:00
Jason Merrill b0bb87a862 guard.cc (struct mutex_wrapper): Move into anonymous namespace.
* libsupc++/guard.cc (struct mutex_wrapper): Move into
        anonymous namespace.

From-SVN: r129218
2007-10-10 19:06:08 -04:00
Zhou Drangon 3c8b6c602e re PR libstdc++/33682 (libstdc++ broken for !__GTHREAD_HAS_COND hosts)
2007-10-09  Zhou Drangon  <drangon.mail@gmail.com>

	PR libstdc++/33682
        * libsupc++/guard.cc: Make single conditional variable
        implementation dependent to __GTHREAD_HAS_COND.

From-SVN: r129181
2007-10-09 21:24:31 +00:00
Doug Kwan afd82ef5ab gthr-posix.h (__gthread_cond_broadcast, [...]): Add to extend interface for POSIX conditional variables.
2007-09-13  Doug Kwan  <dougkwan@google.com>

        * gcc/gthr-posix.h (__gthread_cond_broadcast, __gthread_cond_wait,
        __gthread_cond_wait_recursive): Add to extend interface for POSIX
        conditional variables. (__GTHREAD_HAS_COND): Macro defined to signify
        support of conditional variables.
        * gcc/gthr-posix95.h (__gthread_cond_broadcast, __gthread_cond_wait,
        __gthread_cond_wait_recursive): Add to extend interface for POSIX
        conditional variables. (__GTHREAD_HAS_COND): Macro defined to signify
        support of conditional variables.
        * gcc/gthr-single.h (__gthread_cond_broadcast, __gthread_cond_wait,
        __gthread_cond_wait_recursive): Add to extend interface for POSIX
        conditional variables.
        * gcc/gthr.h: Update comments to document new interface.
        * libstdc++-v3/include/ext/concurrent.h (class __mutex,
        class __recursive_mutex): Add new method gthread_mutex to access
        inner gthread mutex.
        [__GTHREAD_HAS_COND] (class __concurrence_broadcast_error,
        class __concurrence_wait_error, class __cond): Add.
        * guard.cc (recursive_push, recursive_pop): Delete.
        (init_in_progress_flag, set_init_in_progress_flag): Add to
        replace recursive_push and recursive_pop.
        (throw_recursive_init_exception): Add.
        (acquire, __cxa_guard_acquire, __cxa_guard_abort and
        __cxa_guard_release): [__GTHREAD_HAS_COND] Use a conditional
        for synchronization of static variable initialization.
        The global mutex is only held briefly when guards are
        accessed. [!__GTHREAD_HAS_COND] Fall back to the old code,
        which deadlocks.
        * testsuite/thread/guard.cc: Add new test. It deadlocks with the
        old locking code in libstdc++-v3/libsup++/guard.cc.

From-SVN: r129030
2007-10-05 01:35:46 -04:00
Benjamin Kosnik e64690af46 re PR libstdc++/29426 (static __recursive_mutex init vs __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION)
2006-10-11  Benjamin Kosnik  <bkoz@redhat.com>

	PR libstdc++/29426
	* libsupc++/guard.cc (get_static_mutex): New. 
	(mutex_wrapper::mutex_wrapper): Use it to get properly initialized
	recursive mutex without ordering issues.

	* src/locale_init.cc (__get_locale_mutex): No need to
	uglify. Change to get_locale_mutex.

From-SVN: r117643
2006-10-11 20:18:36 +00:00
Benjamin Kosnik 2e362c7474 atomicity.h: Move to...
2006-09-13  Benjamin Kosnik  <bkoz@redhat.com>

	* include/bits/atomicity.h: Move to...
	* include/ext/atomicity.h: ...here.	
	* include/bits/concurrence.h: Move to...
	* include/ext/concurrence.h: ...here.
	* include/Makefile.am (ext_headers): Additions.
	(bits_headers): Subtractions.
	* include/Makefile.in: Regenerate.

	* include/ext/bitmap_allocator.h (_Mutex), __threads_enabled,
	_Lock, _Auto_Lock): Subsume into...
	* include/bits/concurrence.h (__mutex): ..this. Error check
	locking and unlocking.	
	(lock): Uglify to...
	(__scoped_lock): Use __mutex. 
	(__glibcxx_mutex_define_initialized): Remove.
	(__glibcxx_mutex_type): Remove.

	* include/tr1/boost_shared_ptr.h: Formating tweaks, adjustments.
	(_Lock_policy): Move from here...
	* include/ext/concurrence.h: ... to here.
	(__shared_ptr_default_lock_mode): To __default_lock_policy.
	(_S_lockfree): To _S_atomic.
	Document.

	* libsupc++/guard.cc (static_mutex): Subsume into and fixup for...
	* include/ext/concurrence.h (__recursive_mutex): ...this. Error
	check locking and unlocking.
	* libsupc++/eh_alloc.cc: Use __scoped_lock.

	* config/os/aix/atomicity.h: Fixups for include paths, mutex to
	__scoped_mutex change, removal of locking defines.
	* config/os/irix/atomicity.h: Same.
	* config/cpu/cris/atomicity.h: Same.
	* config/cpu/m68k/atomicity.h: Same.
	* config/cpu/hppa/atomicity.h: Same.
	* config/cpu/mips/atomicity.h: Same.
	* config/cpu/sparc/atomicity.h: Same.
	* config/cpu/i386/atomicity.h: Same.
	* config/cpu/i486/atomicity.h: Same.
	* config/cpu/sh/atomicity.h: Same.
	* config/cpu/generic/atomicity_mutex/atomicity.h: Same.
	* include/ext/pool_allocator.h: Same.
	* include/ext/bitmap_allocator.h: Same.
	* include/ext/rc_string_base.h: Same.
	* include/ext/mt_allocator.h: Same.
	* include/bits/locale_classes.h: Same.
	* include/bits/basic_string.h: Same.
	* include/bits/ios_base.h: Same.
	* include/tr1/memory: Same.
	* src/pool_allocator.cc: Same.
	* src/mt_allocator.cc: Same.
	* src/locale_init.cc: Same.
	* src/ios.cc: Same.
	* src/locale.cc: Same.
	* src/bitmap_allocator.cc: Same.
	* src/ios_init.cc: Same.
	* src/debug.cc: Same.

From-SVN: r116942
2006-09-14 09:48:15 +00:00
Benjamin Kosnik b967bf2560 del_op.cc: Include c++config.h first.
2005-11-21  Benjamin Kosnik  <bkoz@redhat.com>

	* libsupc++/del_op.cc: Include c++config.h first.
	* libsupc++/eh_alloc.cc: Same.
	* libsupc++/new_opv.cc: Same.
	* libsupc++/eh_throw.cc: Same.
	* libsupc++/new_op.cc: Same.
	* libsupc++/del_opv.cc: Same.
	* libsupc++/eh_catch.cc: Same.
	* libsupc++/guard.cc: Same.
	* libsupc++/del_opnt.cc: Same.
	* libsupc++/eh_exception.cc: Same.
	* libsupc++/new_opvnt.cc: Same.
	* libsupc++/eh_term_handler.cc: Same.
	* libsupc++/eh_personality.cc: Same.
	* libsupc++/eh_call.cc: Same.
	* libsupc++/new_opnt.cc: Same.
	* libsupc++/del_opvnt.cc: Same.

2005-11-21  Benjamin Kosnik  <bkoz@redhat.com>

	* src/Makefile.am (LTCXXCOMPILE): CXXFLAGS last.
	* libsupc++/Makefile.am: Same.
	* src/Makefile.in: Regenerate.
	* libsupc++/Makefile.in: Same.

From-SVN: r107343
2005-11-22 00:19:07 +00:00
Kelley Cook 83f517994d All files: Update FSF address.
2005-08-17  Kelley Cook  <kcook@gcc.gnu.org>

	* All files: Update FSF address.

From-SVN: r103192
2005-08-17 02:28:44 +00:00
Jason Merrill 445cf5eb0d Add memory barriers to the double-checked locking used for static initialization.
libstdc++:
        Add memory barriers to the double-checked locking used for static
        initialization.
        * libsupc++/guard.cc (__test_and_acquire): Define default.
        (_GLIBCXX_GUARD_TEST_AND_ACQUIRE, __set_and_release)
        (_GLIBCXX_GUARD_SET_AND_RELEASE): Likewise.
        (recursion_push, recursion_pop): New abstraction functions.
        (__cxa_guard_acquire): Use _GLIBCXX_GUARD_TEST_AND_ACQUIRE.
        (__cxa_guard_release): Use _GLIBCXX_GUARD_SET_AND_RELEASE.
        * config/cpu/generic/cxxabi_tweaks.h (_GLIBCXX_GUARD_TEST): Rename
        from _GLIBCXX_GUARD_ACQUIRE and reverse sense.
        (_GLIBCXX_GUARD_SET): Rename from _GLIBCXX_GUARD_RELEASE.
        * config/cpu/arm/cxxabi_tweaks.h: Likewise.
        * config/cpu/alpha/atomic_word.h (_GLIBCXX_READ_MEM_BARRIER)
        (_GLIBCXX_WRITE_MEM_BARRIER): Define.
        * config/cpu/powerpc/atomic_word.h: Likewise.
        * config/cpu/sparc/atomic_word.h: Likewise.
        * config/cpu/generic/atomic_word.h: Define them, commented out.
        * include/bits/atomicity.h: Define defaults.
        * config/cpu/ia64/atomic_word.h (__test_and_acquire)
        (__set_and_release): New inlines.
        (_GLIBCXX_GUARD_TEST_AND_ACQUIRE): Define.
        (_GLIBCXX_GUARD_SET_AND_RELEASE): Define.

        * libsupc++/guard.cc (acquire_1): Use __builtin_trap instead of
        abort();

gcc:
        * doc/tm.texi (TARGET_RELAXED_ORDERING): Document.
        * target.h (struct gcc_target): Add relaxed_ordering field.
        * target-def.h (TARGET_RELAXED_ORDERING): Define default.
        (TARGET_INITIALIZER): Add it.
        * config/alpha/alpha.c (TARGET_RELAXED_ORDERING): Define.
        * config/ia64/ia64.c (TARGET_RELAXED_ORDERING): Define.
        * config/rs6000/rs6000.c (TARGET_RELAXED_ORDERING): Define.
        * config/sparc/sparc.c (TARGET_RELAXED_ORDERING): Define.
        * cp/decl.c (expand_static_init): Don't use shortcut if
        targetm.relaxed_ordering.

From-SVN: r92659
2004-12-27 23:36:54 -05:00
Jason Merrill 40aac94801 re PR c++/13684 (local static object variable constructed once but ctors and dtors called multiple times on same memory when called in multiple threads)
PR c++/13684
        * cp/decl.c (expand_static_init): Use thread-safety API.
        (register_dtor_fn): Return the call, don't expand it.
        * cp/tree.c (add_stmt_to_compound): New fn.
        (stabilize_call): Use it.
        * gimplify.c (gimplify_cleanup_point_expr): Handle CLEANUP_EH_ONLY.
        (gimple_push_cleanup): Add eh_only parm.
        (gimplify_target_expr): Pass it.
        * c.opt (-fno-threadsafe-statics): New option.
        * c-opts.c (c_common_handle_option): Handle it.
        * c-common.h (flag_threadsafe_statics): Declare it.
        * c-common.c (flag_threadsafe_statics): Record it.
        * doc/invoke.texi: Document it.
        * tsystem.h (_GNU_SOURCE): Define.
        * gthr-posix.h (__gthread_recursive_mutex_t): New typedef.
        (__GTHREAD_RECURSIVE_MUTEX_INIT): New macro.
        (__GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION): New macro.
        (__gthread_recursive_mutex_init_function): New fn.
        (__gthread_recursive_mutex_lock): New fn.
        (__gthread_recursive_mutex_trylock): New fn.
        (__gthread_recursive_mutex_unlock): New fn.
        * gthr-solaris.h, gthr-single.h, gthr-dce.h: Likewise.
        * gthr-win32.h, gthr-vxworks.h: Likewise.
        * gthr.h: Document.

        * libsupc++/guard.cc (static_mutex): Internal class implementing a
        recursive mutex which controls initialization of local statics.
        (__gnu_cxx::recursive_init): New exception class.
        (__cxa_guard_acquire): Deal with locking and recursion detection.
        (acquire_1, __cxa_guard_abort, __cxa_guard_release): Likewise.

From-SVN: r86687
2004-08-27 22:33:54 -04:00
Jason Merrill 27f577e57d fix typo
From-SVN: r85715
2004-08-09 09:18:56 -04:00
Paul Brook 1568430fae configure.ac: Set ABI_TWEAKS_SRCDIR.
* configure.ac: Set ABI_TWEAKS_SRCDIR.
	* configure.host: Set abi_tweaks_dir.  Check for atomicity.h when
	setting atomicity_dir.  Override type_cpu for arm based targets.
	* include/Makefile.am (host_headers): Add cxxabi_tweaks.h.
	* libsupc++/cxxabi.h: Include bits/cxxabi.h. Don't declare __guard.
	* libsupc++/guard.cc: Use definitions from cxxabi_tweaks.h.
	* libsupc++/vec.cc: Ditto.
	* config/cpu/arm/cxxabi_tweaks.h: New file.
	* config/cpu/generic/cxxabi_tweaks.h: New file.
	* */Makefile.in: Regenerate.
	* configure: Regenerate.

From-SVN: r84032
2004-07-02 23:40:19 +00:00
Paul Brook 4185ae5397 target-def.h (TARGET_CXX_GUARD_TYPE, [...]): Define.
gcc/
	* target-def.h (TARGET_CXX_GUARD_TYPE, TARGET_CXX_GUARD_MASK_BIT,
	TARGET_CXX): Define.
	(TARGET_INITIALIZER): Use TARGET_CXX.
	* target.h (struct gcc_target): Add struct cxx.
	* targhooks.h (default_cxx_guard_type): Add prototype.
	* targhooks.c (default_cxx_guard_type): New function.
	* config/arm/arm.c (TARGET_CXX_GUARD_TYPE, TARGET_CXX_GUARD_MASK_BIT):
	Define.
	(arm_cxx_guard_type, arm_cxx_guard_mask_bit): New functions.
	* doc/tm.texi: Document TARGET_CXX_GUARD_TYPE and
	TARGET_CXX_GUARD_MASK_BIT.
gcc/cp/
	* decl2.c (get_guard): Call targetm.cxx.guard_type.
	(get_guard_bits, get_guard_cond): Call targetm.cxx.guard_mask_bit.
libstdc++/
	* libsupc++/cxxabi.h: Define __ARM_EABI__
	(__guard): Use it.
	* libsupc++/guard.h (__cxa_guard_acquire, __cxa_guard_release): Ditto.

From-SVN: r83660
2004-06-25 17:15:46 +00:00
Mark Mitchell c4f6640537 Makefile.am (sources): Add guard.cc.
* libsupc++/Makefile.am (sources): Add guard.cc.
	* libsupc++/Makefile.in: Regenerated.
	* libsupc++/cxxabi.h (__cxa_guard_acquire): New function.
	(__cxa_guard_release): Likewise.
	(__cxa_guard_abort): Likewise.
	* libsupc++/guard.cc: New file.

From-SVN: r59475
2002-11-25 23:17:31 +00:00