Fix shebangs and x bits on all scripts.

Many scripts had a #! line below the license text, where it has no
effect: the kernel only looks for #! at the very start of the file.
Without that, an executable script will only run successfully if the
shell it's launched from contains fallback processing of some kind for
when the exec system call fails.

Now all bash and Python scripts have an appropriate #! at the very
start, and all of them are consistently marked executable (a few were
missing that as well).

Author: statham-arm

build-clang.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 #
 # Copyright (c) 2020, Arm Limited and affiliates.
 # SPDX-License-Identifier: Apache-2.0
@@ -15,8 +17,6 @@
 # limitations under the License.
 #
 
-#!/bin/bash
-
 build_clang () {
   mkdir -p $BUILD_DIR/llvm
 

build-common.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 #
 # Copyright (c) 2020, Arm Limited and affiliates.
 # SPDX-License-Identifier: Apache-2.0

build-compiler-rt.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 #
 # Copyright (c) 2020, Arm Limited and affiliates.
 # SPDX-License-Identifier: Apache-2.0
@@ -15,8 +17,6 @@
 # limitations under the License.
 #
 
-#!/bin/bash
-
 build_compilerrt () {
   pushToCleanDir $BUILD_DIR/compiler-rt
 

build-misc.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 #
 # Copyright (c) 2020, Arm Limited and affiliates.
 # SPDX-License-Identifier: Apache-2.0
@@ -15,8 +17,6 @@
 # limitations under the License.
 #
 
-#!/bin/bash
-
 build_misc () {
   [ "$#" -ne 0 ] && error "misc does not support variants."
 

build-newlib.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 #
 # Copyright (c) 2020, Arm Limited and affiliates.
 # SPDX-License-Identifier: Apache-2.0
@@ -15,8 +17,6 @@
 # limitations under the License.
 #
 
-#!/bin/bash
-
 build_newlib () {
   pushToCleanDir $BUILD_DIR/newlib
 

build.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 #
 # Copyright (c) 2020, Arm Limited and affiliates.
 # SPDX-License-Identifier: Apache-2.0
@@ -15,8 +17,6 @@
 # limitations under the License.
 #
 
-#!/bin/bash
-
 . $(dirname $BASH_SOURCE[0])/config.sh
 . $(dirname $BASH_SOURCE[0])/prepare-source.sh
 for E in common clang newlib compiler-rt; do

config.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 #
 # Copyright (c) 2020, Arm Limited and affiliates.
 # SPDX-License-Identifier: Apache-2.0

configure-toolchain.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 #
 # Copyright (c) 2020, Arm Limited and affiliates.
 # SPDX-License-Identifier: Apache-2.0
@@ -15,8 +17,6 @@
 # limitations under the License.
 #
 
-#!/bin/bash
-
 configure_toolchain() {
   # LLD does not have a good bare-metal builtin linker script (yet)
   cp "$SOURCE_ROOT_DIR/ldscript/base.ld" "$TARGET_LLVM_PATH/targets/${TARGET}/base.ld"

package-toolchain.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 #
 # Copyright (c) 2020, Arm Limited and affiliates.
 # SPDX-License-Identifier: Apache-2.0
@@ -15,8 +17,6 @@
 # limitations under the License.
 #
 
-#!/bin/bash
-
 package_toolchain() {
   echo "$VERSION_STRING" > $TARGET_LLVM_PATH/VERSION.txt
 

prepare-source.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 #
 # Copyright (c) 2020, Arm Limited and affiliates.
 # SPDX-License-Identifier: Apache-2.0
@@ -15,8 +17,6 @@
 # limitations under the License.
 #
 
-#!/bin/bash
-
 prepare_source() {
   if [ ! -x $VENV_DIR/bin/repos.py ]; then
     error "Python virtualenv problem. Have you run setup.sh ?"

scripts/repos.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 #
 # Copyright (c) 2020, Arm Limited and affiliates.
 # SPDX-License-Identifier: Apache-2.0
@@ -15,8 +17,6 @@
 # limitations under the License.
 #
 
-#!/usr/bin/env python3
-
 import argparse
 import yaml
 import os

scripts/setup.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 #
 # Copyright (c) 2020, Arm Limited and affiliates.
 # SPDX-License-Identifier: Apache-2.0
@@ -15,8 +17,6 @@
 # limitations under the License.
 #
 
-#!/usr/bin/env python3
-
 from setuptools import setup, find_packages
 setup(
     name = "LLVMEmbeddedToolchainForArm",

setup.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 #
 # Copyright (c) 2020, Arm Limited and affiliates.
 # SPDX-License-Identifier: Apache-2.0
@@ -15,8 +17,6 @@
 # limitations under the License.
 #
 
-#!/bin/bash
-
 python3 -m venv venv
 
 . venv/bin/activate