e64690af46
re PR libstdc++/29426 (static __recursive_mutex init vs __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION)
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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
2e362c7474
atomicity.h: Move to...
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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
b967bf2560
del_op.cc: Include c++config.h first.
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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
83f517994d
All files: Update FSF address.
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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
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
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
27f577e57d
fix typo
...
From-SVN: r85715
2004-08-09 09:18:56 -04:00
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
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
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
Benjamin Kosnik