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util: add read_barrier() for ARMv7

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Christian Hergert
2016-08-22 11:54:10 -07:00
parent 3cfcee4757
commit 6ed7ec20ae
1 changed files with 4 additions and 0 deletions
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4
lib/util/util.h
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@ -29,4 +29,8 @@
#define read_barrier() asm volatile("" ::: "memory") #define read_barrier() asm volatile("" ::: "memory")
#endif #endif
#ifdef __arm__
#define read_barrier() asm volatile("dsb" ::: "memory")
#endif
#endif /* SP_UTIL_H */ #endif /* SP_UTIL_H */