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runtime: mark lockWithRankMayAcquire as nosplit
The function is called in nosplit context already. Fixes #68525 Change-Id: I8b9e324335b7c605d5a20cacdd58df09b7a7cf52 Reviewed-on: https://go-review.googlesource.com/c/go/+/599675 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Michael Knyszek <mknyszek@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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@ -42,6 +42,9 @@ func releaseLockRankAndM(rank lockRank) {
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releasem(getg().m)
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}
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// This function may be called in nosplit context and thus must be nosplit.
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//
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//go:nosplit
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func lockWithRankMayAcquire(l *mutex, rank lockRank) {
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}
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13
test/fixedbugs/issue68525.go
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13
test/fixedbugs/issue68525.go
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@ -0,0 +1,13 @@
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// run -gcflags='all=-N -l'
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// Copyright 2024 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import "os"
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func main() {
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os.OpenFile(os.DevNull, os.O_WRONLY, 0)
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}
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