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* sysdeps/sparc/sparc32/dl-machine.h (LD_SO_PRELOAD): Remove unused
define.
* sysdeps/sparc/sparc32/bits/atomic.h: Include stdint.h, add
{,u}atomic*_t typedefs.
(__sparc32_atomic_do_lock): Add __volatile and memory clobber.
(__sparc32_atomic_do_unlock): Add memory barrier.
(__sparc32_atomic_do_lock24, __sparc32_atomic_do_unlock24): Define.
[!SHARED] (__v9_compare_and_exchange_val_32_acq): Define.
(__v7_compare_and_exchange_val_acq, __v7_compare_and_exchange_bool_acq,
__v7_exchange_acq, __v7_exchange_and_add, __v7_exchange_24_rel,
__v7_compare_and_exchange_val_24_acq, __atomic_is_v9,
atomic_exchange_acq, atomic_compare_and_exchange_val_24_acq,
atomic_exchange_24_rel): Define.
[SHARED] (atomic_exchange_and_add): Define.
[!SHARED] (__ATOMIC_HWCAP_SPARC_V9): Define.
[!SHARED] (_dl_hwcap): New weak decl.
* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h (atomic_exchange_24_rel,
atomic_compare_and_exchange_val_24_acq): Define.
* sysdeps/sparc/sparc64/bits/atomic.h (atomic_exchange_24_rel,
atomic_compare_and_exchange_val_24_acq): Define.
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