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* Define inline atomic operations for x86 and ARM.Carl Shapiro2010-06-231-203/+2
| | | | | | | | This change moves the ARM definitions into GCC extended inline assembler. In addition, the same set of x86 definitions are now shared among all x86 targets. Change-Id: I6e5aa3a413d0af2acbe5d32994983d35a01fdcb3
* Atomic/SMP update, part 2.Andy McFadden2010-05-271-55/+87
| | | | | | | | | | | | | | | | Added new atomic functions, renamed some old ones. Some #defines have been added for backward compatibility. Merged the pre- and post-ARMv6 implementations into a single file. Renamed the semi-private __android_membar_full_smp to USE_SCREAMING_CAPS since that's more appropriate for a macro. Added lots of comments. Note Mac OS X primitives have not been tested. Change-Id: If827260750aeb61ad5c2b760e30658e29dbb26f2
* Atomic/SMP update.Andy McFadden2010-05-201-177/+26
| | | | | | | | | | | | | | | | | | | | | | | Added atomic-inline.h. Added a platform-specific memory barrier call there. Added android_atomic_acquire_cmpxchg() and android_atomic_release_store(). Not tested on Mac OS X or SH. Added memory barrier calls to linux-x86 atomics. Mac OS X has barrier functions already. sh isn't really SMP-ready. linux-arm needs work (to be done in a separate change). Updated the makefile to make the SMP state visible to the code here. Note that host binaries are NOT built with SMP enabled; while our hosts are very likely SMP, it's not worth figuring out e.g. whether it's okay to use the SSE2 mfence instruction or have to use something else. We haven't had barriers enabled in host tools before, so there's probably no need to stat now. Removed quasiatomic 64-bit calls (now part of Dalvik). Change-Id: I49e5e6c8abe70f304cdedb9d7b8e6e65f8925815
* added SuperH atomic support to libcutilsShin-ichiro KAWASAKI2009-08-041-0/+4
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* Initial ContributionThe Android Open Source Project2008-10-211-0/+335