Serban Constantinescu bf3ec9ad52 AArch64: Use LDXR/STXR instead of LDAXR/STLXR for bionic_atomic_cmpxchg() ...

The bionic_atomic_cmpxchg() API states that the cmpxchg() will be done without
explicit memory barriers. LDAXR/STLXR semantics involve half barriers for
load/store.

This patch optimises cmpxchg() by using LDXR/STXR and avoiding unnecessary half
bariers. It also fixes the clobber list for all the bionic_atomic_*() functions.

Change-Id: Iae9468965785cfeeec791d52f1e8cbc524adb682
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>

2013-12-19 18:32:53 +00:00

benchmarks

AArch64: Add fixes to bionic/tests

2013-12-16 17:40:30 -08:00

libc

AArch64: Use LDXR/STXR instead of LDAXR/STLXR for bionic_atomic_cmpxchg()

2013-12-19 18:32:53 +00:00

libdl

x86_64: Update Makefiles for x86_64 targets and add symlinks

2013-10-01 15:36:08 -07:00

libm

Don't use weak aliases in libm.

2013-12-18 17:18:53 -08:00

libstdc++

Fix x86_64 build, clean up intermediate libraries.

2013-10-09 16:00:17 -07:00

libthread_db

Clean up linker architecture macros.

2013-10-28 11:02:49 -07:00

linker

AArch64: Linker64 support for AArch64

2013-12-17 15:02:43 -08:00

tests

Fix compilation of crtbegin.c and pthread_debug.cpp.

2013-12-18 09:47:44 -08:00

.gitignore

Merge memory checking functionality from sandbox

2010-02-16 11:43:18 -08:00

ABI-bugs.txt

PTHREAD_KEYS_MAX cleanup.

2013-12-12 12:51:08 -08:00

Android.mk

Remove the simulator target from all makefiles.

2011-07-11 22:11:41 -07:00

CleanSpec.mk

Add an empty CleanSpec.mk

2010-03-08 18:04:02 -08:00

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