generic-library/bionic
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
526 Commits 77 Branches 202 Tags 25 MiB
3558834c56
Commit Graph

4 Commits

Author SHA1 Message Date
Jim Huang
a172709259 bionic: Rename _ARM_HAVE_LDREX_STREX to __ARM_HAVE_LDREX_STREX for consistency 
The patch follows the naming manner in existing macros with prefix
__ARM_HAVE.

Change-Id: I6763ce2bf3ee85fd1da112c719543061d8d19bf4
 2010-08-09 05:35:11 +08:00
vinay harugop
76ec6891e2 ARM architecture reference manuals for ARMv6 & ARMv7 state that the use of 'swp' instruction is deprecated 
ARMv6 onwards. These architectures provide the load-linked, store-conditional pair of ldrex/strex whose use
is recommended in place of 'swp'. Also, the description of the 'swp' instruction in the ARMv6 reference
manual states that the swap operation does not include any memory barrier guarantees.This fix attempts to
address these issues by providing an atomic swap implementation using ldrex/strex under _ARM_HAVE_LDREX_STREX
macro.  This Fix is verified on ST Ericsson's U8500 platform and Submitted on behalf of a third-party:
Surinder-pal SINGH from STMicroelectronics.
 2009-09-09 21:01:46 +05:30
The Android Open Source Project
4e468ed2eb Code drop from //branches/cupcake/...@124589 2008-12-17 18:03:48 -08:00
The Android Open Source Project
a27d2baa0c Initial Contribution 2008-10-21 07:00:00 -07:00