[compiler-rt] Use portable "#!/usr/bin/env bash" shebang for tests.

[fcambus]

Summary

In build_symbolizer.sh we can safely remove the -eu argument from the shebang (which is an unportable construct), as the scripts sets -e and -u already.

[xgupta]

LGTM, Thanks!

compiler-rt/lib/asan/scripts/asan_device_setup

-#!/bin/bash
+#!/usr/bin/env bash
 #===- lib/asan/scripts/asan_device_setup -----------------------------------===#
 #
 # Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 # See https://llvm.org/LICENSE.txt for license information.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 #
 # Prepare Android device to run ASan applications.
 #

compiler-rt/lib/gwp_asan/scripts/symbolize.sh

-#!/bin/bash
+#!/usr/bin/env bash
 
 # The lines that we're looking to symbolize look like this:
   #0 ./a.out(_foo+0x3e6) [0x55a52e64c696]
 # ... which come from the backtrace_symbols() symbolisation function used by
 # default in Scudo's implementation of GWP-ASan.
 
 while read -r line; do
   # Check that this line needs symbolization.

compiler-rt/lib/sanitizer_common/symbolizer/scripts/ar_to_bc.sh

-#!/bin/bash
+#!/usr/bin/env bash
 
 function usage() {
   echo "Usage: $0 INPUT... OUTPUT"
   exit 1
 }
 
 if [ "$#" -le 1 ]; then
   usage

compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh

-#!/bin/bash -eu
+#!/usr/bin/env bash
 #
 # Run as: CLANG=bin/clang ZLIB_SRC=src/zlib \
 #             build_symbolizer.sh runtime_build/lib/clang/4.0.0/lib/linux/
 # zlib can be downloaded from http://www.zlib.net.
 #
 # Script compiles self-contained object file with symbolization code and injects
 # it into the given set of runtime libraries. Script updates only libraries
 # which has unresolved __sanitizer_symbolize_* symbols and matches architecture.

compiler-rt/lib/tsan/analyze_libtsan.sh

-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Script that prints information about generated code in TSan runtime.
 
 set -e
 set -u
 
 if [[ "$#" != 1 ]]; then
   echo "Usage: $0 /path/to/binary/built/with/tsan"

compiler-rt/lib/tsan/check_analyze.sh

-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Script that checks that critical functions in TSan runtime have correct number
 # of push/pop/rsp instructions to verify that runtime is efficient enough.
 #
 # This test can fail when backend code generation changes the output for various
 # tsan interceptors. When such a change happens, you can ensure that the
 # performance has not regressed by running the following benchmarks before and
 # after the breaking change to verify that the values in this file are safe to

compiler-rt/lib/tsan/check_cmake.sh

-#!/bin/bash
+#!/usr/bin/env bash
 set -u
 set -e
 
 ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 if [ -d "$ROOT/llvm-build" ]; then
   cd $ROOT/llvm-build
 else
   mkdir -p $ROOT/llvm-build