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Diffstat (limited to 'libgo/go/runtime/histogram.go')
| -rw-r--r-- | libgo/go/runtime/histogram.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libgo/go/runtime/histogram.go b/libgo/go/runtime/histogram.go index da4910d341c..0cccbcca162 100644 --- a/libgo/go/runtime/histogram.go +++ b/libgo/go/runtime/histogram.go @@ -81,6 +81,10 @@ type timeHistogram struct { } // record adds the given duration to the distribution. +// +// Disallow preemptions and stack growths because this function +// may run in sensitive locations. +//go:nosplit func (h *timeHistogram) record(duration int64) { if duration < 0 { atomic.Xadd64(&h.underflow, 1) |