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https://github.com/golang/go
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d544591d72
Add tests to test that -asan in Go can detect the error memory access to the global objects. Updates #44853. Change-Id: I612a048460b497d18389160b66e6f818342d3941 Reviewed-on: https://go-review.googlesource.com/c/go/+/321716 Run-TryBot: Fannie Zhang <Fannie.Zhang@arm.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Benny Siegert <bsiegert@gmail.com>
98 lines
3.8 KiB
Go
98 lines
3.8 KiB
Go
// Copyright 2021 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 TestASAN(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 asan tests require support for the -asan option.
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if !aSanSupported(goos, goarch) {
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t.Skipf("skipping on %s/%s; -asan option is not supported.", goos, goarch)
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}
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// The current implementation is only compatible with the ASan library from version
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// v7 to v9 (See the description in src/runtime/asan/asan.go). Therefore, using the
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// -asan option must use a compatible version of ASan library, which requires that
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// the gcc version is not less than 7 and the clang version is not less than 9,
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// otherwise a segmentation fault will occur.
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if !compilerRequiredAsanVersion() {
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t.Skipf("skipping: too old version of compiler")
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}
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t.Parallel()
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requireOvercommit(t)
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config := configure("address")
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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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memoryAccessError string
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errorLocation string
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}{
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{src: "asan1_fail.go", memoryAccessError: "heap-use-after-free", errorLocation: "asan1_fail.go:25"},
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{src: "asan2_fail.go", memoryAccessError: "heap-buffer-overflow", errorLocation: "asan2_fail.go:31"},
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{src: "asan3_fail.go", memoryAccessError: "use-after-poison", errorLocation: "asan3_fail.go:13"},
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{src: "asan4_fail.go", memoryAccessError: "use-after-poison", errorLocation: "asan4_fail.go:13"},
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{src: "asan5_fail.go", memoryAccessError: "use-after-poison", errorLocation: "asan5_fail.go:18"},
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{src: "asan_useAfterReturn.go"},
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{src: "asan_unsafe_fail1.go", memoryAccessError: "use-after-poison", errorLocation: "asan_unsafe_fail1.go:25"},
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{src: "asan_unsafe_fail2.go", memoryAccessError: "use-after-poison", errorLocation: "asan_unsafe_fail2.go:25"},
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{src: "asan_unsafe_fail3.go", memoryAccessError: "use-after-poison", errorLocation: "asan_unsafe_fail3.go:18"},
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{src: "asan_global1_fail.go", memoryAccessError: "global-buffer-overflow", errorLocation: "asan_global1_fail.go:12"},
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{src: "asan_global2_fail.go", memoryAccessError: "global-buffer-overflow", errorLocation: "asan_global2_fail.go:19"},
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{src: "asan_global3_fail.go", memoryAccessError: "global-buffer-overflow", errorLocation: "asan_global3_fail.go:13"},
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{src: "asan_global4_fail.go", memoryAccessError: "global-buffer-overflow", errorLocation: "asan_global4_fail.go:21"},
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{src: "asan_global5.go"},
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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.memoryAccessError != "" {
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outb, err := cmd.CombinedOutput()
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out := string(outb)
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if err != nil && strings.Contains(out, tc.memoryAccessError) {
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// This string is output if the
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// sanitizer library needs a
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// symbolizer program and can't find it.
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const noSymbolizer = "external symbolizer"
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// Check if -asan option can correctly print where the error occurred.
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if tc.errorLocation != "" &&
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!strings.Contains(out, tc.errorLocation) &&
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!strings.Contains(out, noSymbolizer) &&
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compilerSupportsLocation() {
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t.Errorf("%#q exited without expected location of the error\n%s; got failure\n%s", strings.Join(cmd.Args, " "), tc.errorLocation, out)
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}
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return
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}
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t.Fatalf("%#q exited without expected memory access error\n%s; got failure\n%s", strings.Join(cmd.Args, " "), tc.memoryAccessError, 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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