1 files changed, 51 insertions, 0 deletions
diff --git a/build-tool/scripts/validation.sh b/build-tool/scripts/validation.sh
new file mode 100755
index 0000000000..785c1b8f83
--- /dev/null
+++ b/build-tool/scripts/validation.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+# SPDX-License-Identifier: MIT
+#
+
+# Common validation of command line arguments provided to setup-armnn.sh and build-armnn.sh
+
+# shellcheck disable=SC2034,SC2154
+# SC2034: false positives for variables appear unused - variables are used in setup-armnn.sh and build-armnn.sh
+# SC2154: false positives for variables referenced but not assigned - variables are assigned in setup-armnn.sh and build-armnn.sh
+
+set -o nounset  # Catch references to undefined variables.
+set -o pipefail # Catch non zero exit codes within pipelines.
+set -o errexit  # Catch and propagate non zero exit codes.
+
+# Host and target architecture validation
+if [ "$target_arch" == "" ]; then
+  echo "$name: --target-arch is not set. Example usage: --target-arch=aarch64"
+  exit 1
+fi
+
+if [ "$target_arch" != "aarch64" ] && [ "$target_arch" != "aarch32" ] && [ "$target_arch" != "x86_64" ]; then
+  echo "$name: --target-arch is not valid. Valid options are: aarch64, aarch32, x86_64"
+  exit 1
+fi
+
+if [ "$HOST_ARCH" == "aarch64" ]; then
+  if [ "$target_arch" != "aarch64" ]; then
+    echo "$name: aarch64 is the only supported --target_arch when host is aarch64"
+    exit 1
+  fi
+fi
+
+if [ "$target_arch" == "aarch32" ]; then
+  if [ "$HOST_ARCH" != "x86_64" ]; then
+    echo "$name: aarch32 is the only supported --target_arch when host is x86_64 (cross compile only)"
+    exit 1
+  fi
+fi
+
+# Validation of chosen Arm NN dependencies
+if [ "$flag_tflite_delegate" -eq 0 ] && [ "$flag_tflite_parser" -eq 0 ] && [ "$flag_onnx_parser" -eq 0 ]; then
+  echo "$name: at least one of flags --tflite-delegate, --tflite-parser or --onnx-parser must be set (or --all)."
+  exit 1
+fi
+
+# If --num-threads is set, overwrite default NUM_THREADS with user-defined value
+if [ ! "$num_threads" -eq 0 ]; then
+  NUM_THREADS="$num_threads"
+fi
+\ No newline at end of file