Add code size getting script for M55

Add a script that compiles the library for Cortex-M55 (using the
toolchain file in framework/platform) and uses other scripts to get and
display the code size.

Signed-off-by: David Horstmann <david.horstmann@arm.com>

Author: davidhorstmann-arm

scripts/get_code_size_m55.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+"""Build the library for Cortex-M55 using the toolchain file in
+framework/platform and measure and print the code size using the
+existing scripts.
+"""
+
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+
+import json
+import os
+import subprocess
+
+def build_library(build_dir, toolchain_file):
+    subprocess.check_call(['cmake', '.', '-B' + build_dir,
+                           '-DCMAKE_TOOLCHAIN_FILE=framework/platform/' + toolchain_file,
+                           '-DENABLE_PROGRAMS=NO'])
+    subprocess.check_call(['cmake', '--build', build_dir, '-j' + str(os.cpu_count())])
+
+def generate_sizes(build_dir):
+    subprocess.check_call(['framework/scripts/generate_code_size_report.py',
+                           '--output-file', build_dir + '/code_size.json',
+                           '--library-file', build_dir + '/core/libtfpsacrypto.a',
+                           '--size-cmd', 'arm-none-eabi-size'])
+
+def display_sizes(build_dir):
+    subprocess.check_call(['framework/scripts/show_code_size.py',
+                           build_dir + '/code_size.json'])
+
+if __name__ == '__main__':
+    BUILD_DIR = 'build-code-size-m55'
+
+    build_library(BUILD_DIR, 'arm-gcc-m55.cmake')
+    generate_sizes(BUILD_DIR)
+    display_sizes(BUILD_DIR)