From ccd992355df7192993c666236047820244914598 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:19:13 +0200 Subject: Adding upstream version 1.21.8. Signed-off-by: Daniel Baumann --- test/fixedbugs/issue24491b.go | 46 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 test/fixedbugs/issue24491b.go (limited to 'test/fixedbugs/issue24491b.go') diff --git a/test/fixedbugs/issue24491b.go b/test/fixedbugs/issue24491b.go new file mode 100644 index 0000000..142d798 --- /dev/null +++ b/test/fixedbugs/issue24491b.go @@ -0,0 +1,46 @@ +// run + +// Copyright 2020 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. + +// This test makes sure unsafe-uintptr arguments are not +// kept alive longer than expected. + +package main + +import ( + "runtime" + "unsafe" +) + +var done = make(chan bool) + +func setup() unsafe.Pointer { + s := "ok" + runtime.SetFinalizer(&s, func(p *string) { close(done) }) + return unsafe.Pointer(&s) +} + +//go:noinline +//go:uintptrescapes +func before(p uintptr) int { + runtime.GC() + select { + case <-done: + panic("GC early") + default: + } + return 0 +} + +func after() int { + runtime.GC() + runtime.GC() + <-done + return 0 +} + +func main() { + _ = before(uintptr(setup())) + after() +} -- cgit v1.2.3