57e6d9be77
This provides proper definitions for _GLIBCXX_READ_MEM_BARRIER and
_GLIBCXX_WRITE_MEM_BARRIER, rewrites the guards in terms of proper
atomic extensions and removes internal uses of
_GLIBCXX_READ_MEM_BARRIER and _GLIBCXX_WRITE_MEM_BARRIER and replaces
them with equivalent atomics.
2015-06-12 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
PR target/66200
PR c++/66192
* * config/cpu/generic/atomic_word.h (_GLIBCXX_READ_MEM_BARRIER): Define
(_GLIBCXX_WRITE_MEM_BARRIER): Likewise
* include/bits/shared_ptr_base.h: Use ACQ_REL barrier.
* include/ext/atomicity.h: Likewise.
* include/tr1/shared_ptr.h: Likewise.
* libsupc++/guard.cc (__test_and_acquire): Rewrite with atomics.
Update comment.
(__set_and_release): Likewise.
* testsuite/20_util/shared_ptr/cons/43820_neg.cc (test01): Adjust for
line numbers.
* testsuite/20_util/shared_ptr/cons/void_neg.cc: Likewise.
* testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc:
Likewise.
From-SVN: r224411
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|---|---|---|
| .. | ||
| pb_ds | ||
| algorithm | ||
| aligned_buffer.h | ||
| alloc_traits.h | ||
| array_allocator.h | ||
| atomicity.h | ||
| bitmap_allocator.h | ||
| cast.h | ||
| cmath | ||
| codecvt_specializations.h | ||
| concurrence.h | ||
| debug_allocator.h | ||
| enc_filebuf.h | ||
| extptr_allocator.h | ||
| functional | ||
| iterator | ||
| malloc_allocator.h | ||
| memory | ||
| mt_allocator.h | ||
| new_allocator.h | ||
| numeric | ||
| numeric_traits.h | ||
| pod_char_traits.h | ||
| pointer.h | ||
| pool_allocator.h | ||
| random | ||
| random.tcc | ||
| rb_tree | ||
| rc_string_base.h | ||
| rope | ||
| ropeimpl.h | ||
| slist | ||
| sso_string_base.h | ||
| stdio_filebuf.h | ||
| stdio_sync_filebuf.h | ||
| string_conversions.h | ||
| throw_allocator.h | ||
| type_traits.h | ||
| typelist.h | ||
| vstring_fwd.h | ||
| vstring_util.h | ||
| vstring.h | ||
| vstring.tcc | ||