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Support usage of __ARM_HAVE_LDREX_STREX

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The __ARM_HAVE_LDREX_STREX define is used to replace
the swp instruction with ldrex/strex for ARM architecture
greater than 6 (armv6, armv7 etc.). However the include
file, cpu-features.h, which defines this flag was never
included.

Change-Id: Ia35e18e8b228ec830b2b42b08909515110753f18

Signed-off-by: Christian Bejram <christian.bejram@stericsson.com>
This commit is contained in:
Vinay Harugop 2010-09-26 13:45:45 +02:00 committed by Christian Bejram
parent 312be567a0
commit dd06eccffc
1 changed files with 1 additions and 0 deletions
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libc/arch-arm/bionic/atomics_arm.S
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@ -26,6 +26,7 @@
* SUCH DAMAGE. * SUCH DAMAGE.
*/ */
#include <sys/linux-syscalls.h> #include <sys/linux-syscalls.h>
#include <machine/cpu-features.h>
.global __atomic_cmpxchg .global __atomic_cmpxchg
.type __atomic_cmpxchg, %function .type __atomic_cmpxchg, %function