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go/misc/cgo/testsanitizers/test.bash
Mohit Agarwal 8e848ba653 misc/cgo/testsanitizers: fix check for existence of clang
The current mechanism fails if clang cannot be executed by the current
user.  Using the `-x` operator for `test` return TRUE if the file is
executable by the user.

Change-Id: I0f3c8dc3880c1ce5a8a833ff3109eb96853184af
Reviewed-on: https://go-review.googlesource.com/16752
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-11-10 03:58:52 +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 "$(type -p clang)"; then
CC=clang
fi
export CC
TMPDIR=${TMPDIR:-/tmp}
echo > ${TMPDIR}/testsanitizers$$.c
if $CC -fsanitize=memory -c ${TMPDIR}/testsanitizers$$.c 2>&1 | grep "unrecognized" >& /dev/null; then
echo "skipping msan test: -fsanitize=memory not supported"
rm -f ${TMPDIR}/testsanitizers$$.*
exit 0
fi
rm -f ${TMPDIR}/testsanitizers$$.*
# The memory sanitizer in versions of clang before 3.6 don't work with Go.
if $CC --version | grep clang >& /dev/null; then
ver=$($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 test; clang version $major.$minor older than 3.6"
exit 0
fi
fi
status=0
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 ! go run -msan msan2.go; then
echo "FAIL: msan2"
status=1
fi
if go run -msan msan_fail.go 2>/dev/null; then
echo "FAIL: msan_fail"
status=1
fi
exit $status