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-rw-r--r--src/runtime/testdata/testprogcgo/stackswitch.go43
1 files changed, 0 insertions, 43 deletions
diff --git a/src/runtime/testdata/testprogcgo/stackswitch.go b/src/runtime/testdata/testprogcgo/stackswitch.go
deleted file mode 100644
index b4bb5f5fd9..0000000000
--- a/src/runtime/testdata/testprogcgo/stackswitch.go
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright 2023 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build unix && !openbsd
-
-package main
-
-/*
-void callStackSwitchCallbackFromThread(void);
-*/
-import "C"
-
-import (
- "fmt"
- "runtime/debug"
-)
-
-func init() {
- register("StackSwitchCallback", StackSwitchCallback)
-}
-
-//export stackSwitchCallback
-func stackSwitchCallback() {
- // We want to trigger a bounds check on the g0 stack. To do this, we
- // need to call a splittable function through systemstack().
- // SetGCPercent contains such a systemstack call.
- gogc := debug.SetGCPercent(100)
- debug.SetGCPercent(gogc)
-}
-
-
-// Regression test for https://go.dev/issue/62440. It should be possible for C
-// threads to call into Go from different stacks without crashing due to g0
-// stack bounds checks.
-//
-// N.B. This is only OK for threads created in C. Threads with Go frames up the
-// stack must not change the stack out from under us.
-func StackSwitchCallback() {
- C.callStackSwitchCallbackFromThread();
-
- fmt.Printf("OK\n")
-}