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go/misc/cgo/testsanitizers/cshared_test.go
Lynn Boger d4ff25ac69 misc/cgo/testsanitizers: determine compiler version for tsan tests on ppc64le
Some tests in misc/cgo/testsanitizers had been disabled on ppc64le
until recently, due to an intermittent error in the tsan tests,
with the goal of trying to understand the failure.

After further investigation, I found that the code for tsan within
gcc does not work consistently when ASLR is enabled on ppc64le. A
fix for that problem was integrated in gcc 9.

This adds a check to testsanitizers to determine the gcc compiler
version on ppc64le and skip the test if the version is too old.

A similar check is needed for asan too.

Updates #54645

Change-Id: I70717d1aa9e967cf1e871566e72b3862b91fea3f
Reviewed-on: https://go-review.googlesource.com/c/go/+/425355
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Archana Ravindar <aravind5@in.ibm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
2022-08-25 11:40:57 +00:00

91 lines
2.0 KiB
Go

// Copyright 2017 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.
package sanitizers_test
import (
"fmt"
"os"
"strings"
"testing"
)
func TestShared(t *testing.T) {
t.Parallel()
requireOvercommit(t)
GOOS, err := goEnv("GOOS")
if err != nil {
t.Fatal(err)
}
GOARCH, err := goEnv("GOARCH")
if err != nil {
t.Fatal(err)
}
libExt := "so"
if GOOS == "darwin" {
libExt = "dylib"
}
cases := []struct {
src string
sanitizer string
}{
{
src: "msan_shared.go",
sanitizer: "memory",
},
{
src: "tsan_shared.go",
sanitizer: "thread",
},
}
for _, tc := range cases {
tc := tc
name := strings.TrimSuffix(tc.src, ".go")
//The memory sanitizer tests require support for the -msan option.
if tc.sanitizer == "memory" && !mSanSupported(GOOS, GOARCH) {
t.Logf("skipping %s test on %s/%s; -msan option is not supported.", name, GOOS, GOARCH)
continue
}
if tc.sanitizer == "thread" && !compilerRequiredTsanVersion(GOOS, GOARCH) {
t.Logf("skipping %s test on %s/%s; compiler version too old for -tsan.", name, GOOS, GOARCH)
continue
}
t.Run(name, func(t *testing.T) {
t.Parallel()
config := configure(tc.sanitizer)
config.skipIfCSanitizerBroken(t)
dir := newTempDir(t)
defer dir.RemoveAll(t)
lib := dir.Join(fmt.Sprintf("lib%s.%s", name, libExt))
mustRun(t, config.goCmd("build", "-buildmode=c-shared", "-o", lib, srcPath(tc.src)))
cSrc := dir.Join("main.c")
if err := os.WriteFile(cSrc, cMain, 0600); err != nil {
t.Fatalf("failed to write C source file: %v", err)
}
dstBin := dir.Join(name)
cmd, err := cc(config.cFlags...)
if err != nil {
t.Fatal(err)
}
cmd.Args = append(cmd.Args, config.ldFlags...)
cmd.Args = append(cmd.Args, "-o", dstBin, cSrc, lib)
mustRun(t, cmd)
cmd = hangProneCmd(dstBin)
replaceEnv(cmd, "LD_LIBRARY_PATH", ".")
mustRun(t, cmd)
})
}
}