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https://github.com/golang/go
synced 2024-11-17 14:34:46 -07:00
7aeaad5c86
This avoids an incorrect msan uninitialized memory report when using runtime.SetCgoTraceback when a signal occurs while the fifth argument register is undefined. See the issue for more details. Fixes #47543 Change-Id: I3d1b673e2c93471ccdae0171a99b88b5a6062840 Reviewed-on: https://go-review.googlesource.com/c/go/+/339902 Trust: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Austin Clements <austin@google.com>
72 lines
1.5 KiB
Go
72 lines
1.5 KiB
Go
// Copyright 2017 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 sanitizers_test
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import (
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"strings"
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"testing"
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)
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func TestMSAN(t *testing.T) {
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goos, err := goEnv("GOOS")
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if err != nil {
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t.Fatal(err)
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}
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goarch, err := goEnv("GOARCH")
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if err != nil {
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t.Fatal(err)
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}
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// The msan tests require support for the -msan option.
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if !mSanSupported(goos, goarch) {
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t.Skipf("skipping on %s/%s; -msan option is not supported.", goos, goarch)
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}
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t.Parallel()
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requireOvercommit(t)
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config := configure("memory")
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config.skipIfCSanitizerBroken(t)
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mustRun(t, config.goCmd("build", "std"))
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cases := []struct {
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src string
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wantErr bool
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}{
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{src: "msan.go"},
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{src: "msan2.go"},
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{src: "msan2_cmsan.go"},
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{src: "msan3.go"},
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{src: "msan4.go"},
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{src: "msan5.go"},
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{src: "msan6.go"},
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{src: "msan7.go"},
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{src: "msan8.go"},
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{src: "msan_fail.go", wantErr: true},
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}
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for _, tc := range cases {
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tc := tc
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name := strings.TrimSuffix(tc.src, ".go")
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t.Run(name, func(t *testing.T) {
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t.Parallel()
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dir := newTempDir(t)
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defer dir.RemoveAll(t)
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outPath := dir.Join(name)
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mustRun(t, config.goCmd("build", "-o", outPath, srcPath(tc.src)))
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cmd := hangProneCmd(outPath)
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if tc.wantErr {
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out, err := cmd.CombinedOutput()
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if err != nil {
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return
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}
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t.Fatalf("%#q exited without error; want MSAN failure\n%s", strings.Join(cmd.Args, " "), out)
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}
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mustRun(t, cmd)
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})
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}
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}
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