From: Michael Anthony Knyszek <mknyszek@google.com>
Date: Fri, 19 May 2023 19:39:28 +0000 (+0000)
Subject: runtime: make traceClockNow nosplit
X-Git-Tag: go1.21rc1~412
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=e6fb1905cb740b7d68b1c9676f058bf44266539d;p=gostls13.git

runtime: make traceClockNow nosplit

It's called from exitsyscall, which is nosplit.

Change-Id: I3f5f92e044497a88a72c1870beb2bdd15c4263c4
Reviewed-on: https://go-review.googlesource.com/c/go/+/496517
Auto-Submit: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: David Chase <drchase@google.com>
---

diff --git a/src/runtime/trace.go b/src/runtime/trace.go
index 29b9886b8a..703a447674 100644
--- a/src/runtime/trace.go
+++ b/src/runtime/trace.go
@@ -1786,6 +1786,10 @@ type traceTime uint64
 // traceClockNow returns a monotonic timestamp. The clock this function gets
 // the timestamp from is specific to tracing, and shouldn't be mixed with other
 // clock sources.
+//
+// nosplit because it's called from exitsyscall, which is nosplit.
+//
+//go:nosplit
 func traceClockNow() traceTime {
 	return traceTime(cputicks() / traceTimeDiv)
 }