| #!/bin/sh |
| # |
| # Copyright (c) 2015-2016, ARM Limited, All Rights Reserved |
| # SPDX-License-Identifier: Apache-2.0 |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); you may |
| # not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| # This file is part of Mbed TLS (https://tls.mbed.org) |
| # |
| # Purpose |
| # |
| # This script determines ROM size (or code size) for the standard mbed TLS |
| # configurations, when built for a Cortex M3/M4 target. |
| # |
| # Configurations included: |
| # default include/mbedtls/config.h |
| # thread configs/config-thread.h |
| # suite-b configs/config-suite-b.h |
| # psk configs/config-ccm-psk-tls1_2.h |
| # |
| # Usage: footprint.sh |
| # |
| set -eu |
| |
| CONFIG_H='include/mbedtls/config.h' |
| |
| if [ -r $CONFIG_H ]; then :; else |
| echo "$CONFIG_H not found" >&2 |
| echo "This script needs to be run from the root of" >&2 |
| echo "a git checkout or uncompressed tarball" >&2 |
| exit 1 |
| fi |
| |
| if grep -i cmake Makefile >/dev/null; then |
| echo "Not compatible with CMake" >&2 |
| exit 1 |
| fi |
| |
| if which arm-none-eabi-gcc >/dev/null 2>&1; then :; else |
| echo "You need the ARM-GCC toolchain in your path" >&2 |
| echo "See https://launchpad.net/gcc-arm-embedded/" >&2 |
| exit 1 |
| fi |
| |
| ARMGCC_FLAGS='-Os -march=armv7-m -mthumb' |
| OUTFILE='00-footprint-summary.txt' |
| |
| log() |
| { |
| echo "$@" |
| echo "$@" >> "$OUTFILE" |
| } |
| |
| doit() |
| { |
| NAME="$1" |
| FILE="$2" |
| |
| log "" |
| log "$NAME ($FILE):" |
| |
| cp $CONFIG_H ${CONFIG_H}.bak |
| if [ "$FILE" != $CONFIG_H ]; then |
| cp "$FILE" $CONFIG_H |
| fi |
| |
| { |
| scripts/config.py unset MBEDTLS_NET_C || true |
| scripts/config.py unset MBEDTLS_TIMING_C || true |
| scripts/config.py unset MBEDTLS_FS_IO || true |
| scripts/config.py --force set MBEDTLS_NO_PLATFORM_ENTROPY || true |
| } >/dev/null 2>&1 |
| |
| make clean >/dev/null |
| CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld \ |
| CFLAGS="$ARMGCC_FLAGS" make lib >/dev/null |
| |
| OUT="size-${NAME}.txt" |
| arm-none-eabi-size -t library/libmbed*.a > "$OUT" |
| log "$( head -n1 "$OUT" )" |
| log "$( tail -n1 "$OUT" )" |
| |
| cp ${CONFIG_H}.bak $CONFIG_H |
| } |
| |
| # truncate the file just this time |
| echo "(generated by $0)" > "$OUTFILE" |
| echo "" >> "$OUTFILE" |
| |
| log "Footprint of standard configurations (minus net_sockets.c, timing.c, fs_io)" |
| log "for bare-metal ARM Cortex-M3/M4 microcontrollers." |
| |
| VERSION_H="include/mbedtls/version.h" |
| MBEDTLS_VERSION=$( sed -n 's/.*VERSION_STRING *"\(.*\)"/\1/p' $VERSION_H ) |
| if git rev-parse HEAD >/dev/null; then |
| GIT_HEAD=$( git rev-parse HEAD | head -c 10 ) |
| GIT_VERSION=" (git head: $GIT_HEAD)" |
| else |
| GIT_VERSION="" |
| fi |
| |
| log "" |
| log "mbed TLS $MBEDTLS_VERSION$GIT_VERSION" |
| log "$( arm-none-eabi-gcc --version | head -n1 )" |
| log "CFLAGS=$ARMGCC_FLAGS" |
| |
| doit default include/mbedtls/config.h |
| doit thread configs/config-thread.h |
| doit suite-b configs/config-suite-b.h |
| doit psk configs/config-ccm-psk-tls1_2.h |
| |
| zip mbedtls-footprint.zip "$OUTFILE" size-*.txt >/dev/null |