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Add Arm-V7 toku_time_now implementation. #12960

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Add Arm-V7 toku_time_now implementation. #12960

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5 changes: 5 additions & 0 deletions utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h
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Original file line number Diff line number Diff line change
Expand Up @@ -133,6 +133,11 @@ static inline tokutime_t toku_time_now(void) {
return result;
#elif defined(__powerpc__)
return __ppc_get_timebase();
#elif defined(__arm__)
uint32_t lo, hi;
__asm __volatile__("mrrc p15, 1, %[lo], %[hi], c14"
: [lo] "=r"(lo), [hi] "=r"(hi));
return (uint64_t)hi << 32 | lo;
#elif defined(__s390x__)
uint64_t result;
asm volatile("stckf %0" : "=Q"(result) : : "cc");
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