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go/misc/cgo/testsanitizers/test.bash
Ian Lance Taylor c8ef0df06c cmd/cgo: add hooks for thread sanitizer
When Go code is used with C code compiled with -fsanitize=thread, adds
thread sanitizer calls so that correctly synchronized Go code does not
cause spurious failure reports from the thread sanitizer.  This may
cause some false negatives, but for the thread sanitizer what is most
important is avoiding false positives.

Change-Id: If670e4a6f2874c7a2be2ff7db8728c6036340a52
Reviewed-on: https://go-review.googlesource.com/17421
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
2016-02-28 04:56:17 +00:00

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#!/usr/bin/env bash
# Copyright 2015 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 directory is intended to test the use of Go with sanitizers
# like msan, asan, etc. See https://github.com/google/sanitizers .
set -e
# The sanitizers were originally developed with clang, so prefer it.
CC=cc
if test -x "$(type -p clang)"; then
CC=clang
fi
export CC
msan=yes
TMPDIR=${TMPDIR:-/tmp}
echo > ${TMPDIR}/testsanitizers$$.c
if $CC -fsanitize=memory -c ${TMPDIR}/testsanitizers$$.c -o ${TMPDIR}/testsanitizers$$.o 2>&1 | grep "unrecognized" >& /dev/null; then
echo "skipping msan tests: -fsanitize=memory not supported"
msan=no
fi
rm -f ${TMPDIR}/testsanitizers$$.*
# The memory sanitizer in versions of clang before 3.6 don't work with Go.
if test "$msan" = "yes" && $CC --version | grep clang >& /dev/null; then
ver=$($CC --version | sed -e 's/.* version \([0-9.-]*\).*/\1/')
major=$(echo $ver | sed -e 's/\([0-9]*\).*/\1/')
minor=$(echo $ver | sed -e 's/[0-9]*\.\([0-9]*\).*/\1/')
if test "$major" -lt 3 || test "$major" -eq 3 -a "$minor" -lt 6; then
echo "skipping msan tests: clang version $major.$minor (older than 3.6)"
msan=no
fi
# Clang before 3.8 does not work with Linux at or after 4.1.
# golang.org/issue/12898.
if test "$msan" = "yes" -a "$major" -lt 3 || test "$major" -eq 3 -a "$minor" -lt 8; then
if test "$(uname)" = Linux; then
linuxver=$(uname -r)
linuxmajor=$(echo $linuxver | sed -e 's/\([0-9]*\).*/\1/')
linuxminor=$(echo $linuxver | sed -e 's/[0-9]*\.\([0-9]*\).*/\1/')
if test "$linuxmajor" -gt 4 || test "$linuxmajor" -eq 4 -a "$linuxminor" -ge 1; then
echo "skipping msan tests: clang version $major.$minor (older than 3.8) incompatible with linux version $linuxmajor.$linuxminor (4.1 or newer)"
msan=no
fi
fi
fi
fi
status=0
if test "$msan" = "yes"; then
if ! go build -msan std; then
echo "FAIL: build -msan std"
status=1
fi
if ! go run -msan msan.go; then
echo "FAIL: msan"
status=1
fi
if ! CGO_LDFLAGS="-fsanitize=memory" CGO_CPPFLAGS="-fsanitize=memory" go run -msan -a msan2.go; then
echo "FAIL: msan2 with -fsanitize=memory"
status=1
fi
if ! go run -msan -a msan2.go; then
echo "FAIL: msan2"
status=1
fi
if ! go run -msan msan3.go; then
echo "FAIL: msan3"
status=1
fi
if ! go run -msan msan4.go; then
echo "FAIL: msan4"
status=1
fi
if go run -msan msan_fail.go 2>/dev/null; then
echo "FAIL: msan_fail"
status=1
fi
fi
tsan=yes
TMPDIR=${TMPDIR:-/tmp}
echo > ${TMPDIR}/testsanitizers$$.c
if $CC -fsanitize=thread -c ${TMPDIR}/testsanitizers$$.c -o ${TMPDIR}/testsanitizers$$.o 2>&1 | grep "unrecognized" >& /dev/null; then
echo "skipping tsan tests: -fsanitize=thread not supported"
tsan=no
fi
rm -f ${TMPDIR}/testsanitizers$$.*
if test "$tsan" = "yes"; then
err=${TMPDIR}/tsanerr$$.out
if ! go run tsan.go 2>$err; then
echo "FAIL: tsan"
status=1
elif grep -i warning $err >/dev/null 2>&1; then
cat $err
echo "FAIL: tsan"
status=1
fi
if ! go run tsan2.go 2>$err; then
echo "FAIL: tsan2"
status=1
elif grep -i warning $err >/dev/null 2>&1; then
cat $err
echo "FAIL: tsan2"
status=1
fi
rm -f $err
fi
exit $status