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cycleclock: Support for PA-RISC (hppa) architecture (#1894)

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Co-authored-by: dominic <510002+dmah42@users.noreply.github.com>
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Helge Deller 2025-01-08 13:03:53 +01:00 committed by GitHub
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commit f65741b2bd
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src/cycleclock.h
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@ -229,6 +229,16 @@ inline BENCHMARK_ALWAYS_INLINE int64_t Now() {
struct timeval tv;
gettimeofday(&tv, nullptr);
return static_cast<int64_t>(tv.tv_sec) * 1000000 + tv.tv_usec;
#elif defined(__hppa__)
// HP PA-RISC provides a user-readable clock counter (cr16), but
// it's not syncronized across CPUs and only 32-bit wide when programs
// are built as 32-bit binaries.
// Use clock_gettime(CLOCK_MONOTONIC, ...) instead of gettimeofday
// because is provides nanosecond resolution.
// Initialize to always return 0 if clock_gettime fails.
struct timespec ts = {0, 0};
clock_gettime(CLOCK_MONOTONIC, &ts);
return static_cast<int64_t>(ts.tv_sec) * 1000000000 + ts.tv_nsec;
#else
// The soft failover to a generic implementation is automatic only for ARM.
// For other platforms the developer is expected to make an attempt to create