From 43a123c1ae6613b3efeed291fa552ecd909d3acf Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:23:18 +0200 Subject: Adding upstream version 1.20.14. Signed-off-by: Daniel Baumann --- src/runtime/race/race_unix_test.go | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 src/runtime/race/race_unix_test.go (limited to 'src/runtime/race/race_unix_test.go') diff --git a/src/runtime/race/race_unix_test.go b/src/runtime/race/race_unix_test.go new file mode 100644 index 0000000..3cf53b0 --- /dev/null +++ b/src/runtime/race/race_unix_test.go @@ -0,0 +1,29 @@ +// Copyright 2014 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 race && (darwin || freebsd || linux) + +package race_test + +import ( + "sync/atomic" + "syscall" + "testing" + "unsafe" +) + +// Test that race detector does not crash when accessing non-Go allocated memory (issue 9136). +func TestNonGoMemory(t *testing.T) { + data, err := syscall.Mmap(-1, 0, 4096, syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_ANON|syscall.MAP_PRIVATE) + if err != nil { + t.Fatalf("failed to mmap memory: %v", err) + } + defer syscall.Munmap(data) + p := (*uint32)(unsafe.Pointer(&data[0])) + atomic.AddUint32(p, 1) + (*p)++ + if *p != 2 { + t.Fatalf("data[0] = %v, expect 2", *p) + } +} -- cgit v1.2.3