108 lines
2.7 KiB
Bash
Executable file
108 lines
2.7 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright The Mbed TLS Contributors
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# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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#
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# Purpose
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#
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# This script determines ROM size (or code size) for the standard Mbed TLS
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# configurations, when built for a Cortex M3/M4 target.
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#
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# Configurations included:
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# default include/mbedtls/mbedtls_config.h
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# thread configs/config-thread.h
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# suite-b configs/config-suite-b.h
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# psk configs/config-ccm-psk-tls1_2.h
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#
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# Usage: footprint.sh
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#
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set -eu
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CONFIG_H='include/mbedtls/mbedtls_config.h'
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if [ -r $CONFIG_H ]; then :; else
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echo "$CONFIG_H not found" >&2
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echo "This script needs to be run from the root of" >&2
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echo "a git checkout or uncompressed tarball" >&2
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exit 1
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fi
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if grep -i cmake Makefile >/dev/null; then
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echo "Not compatible with CMake" >&2
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exit 1
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fi
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if which arm-none-eabi-gcc >/dev/null 2>&1; then :; else
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echo "You need the ARM-GCC toolchain in your path" >&2
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echo "See https://launchpad.net/gcc-arm-embedded/" >&2
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exit 1
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fi
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ARMGCC_FLAGS='-Os -march=armv7-m -mthumb'
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OUTFILE='00-footprint-summary.txt'
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log()
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{
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echo "$@"
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echo "$@" >> "$OUTFILE"
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}
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doit()
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{
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NAME="$1"
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FILE="$2"
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log ""
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log "$NAME ($FILE):"
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cp $CONFIG_H ${CONFIG_H}.bak
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if [ "$FILE" != $CONFIG_H ]; then
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cp "$FILE" $CONFIG_H
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fi
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{
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scripts/config.py unset MBEDTLS_NET_C || true
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scripts/config.py unset MBEDTLS_TIMING_C || true
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scripts/config.py unset MBEDTLS_FS_IO || true
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scripts/config.py --force set MBEDTLS_NO_PLATFORM_ENTROPY || true
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} >/dev/null 2>&1
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make clean >/dev/null
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CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld \
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CFLAGS="$ARMGCC_FLAGS" make lib >/dev/null
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OUT="size-${NAME}.txt"
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arm-none-eabi-size -t library/libmbed*.a > "$OUT"
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log "$( head -n1 "$OUT" )"
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log "$( tail -n1 "$OUT" )"
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cp ${CONFIG_H}.bak $CONFIG_H
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}
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# truncate the file just this time
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echo "(generated by $0)" > "$OUTFILE"
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echo "" >> "$OUTFILE"
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log "Footprint of standard configurations (minus net_sockets.c, timing.c, fs_io)"
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log "for bare-metal ARM Cortex-M3/M4 microcontrollers."
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VERSION_H="include/mbedtls/version.h"
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MBEDTLS_VERSION=$( sed -n 's/.*VERSION_STRING *"\(.*\)"/\1/p' $VERSION_H )
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if git rev-parse HEAD >/dev/null; then
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GIT_HEAD=$( git rev-parse HEAD | head -c 10 )
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GIT_VERSION=" (git head: $GIT_HEAD)"
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else
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GIT_VERSION=""
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fi
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log ""
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log "Mbed TLS $MBEDTLS_VERSION$GIT_VERSION"
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log "$( arm-none-eabi-gcc --version | head -n1 )"
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log "CFLAGS=$ARMGCC_FLAGS"
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doit default include/mbedtls/mbedtls_config.h
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doit thread configs/config-thread.h
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doit suite-b configs/config-suite-b.h
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doit psk configs/config-ccm-psk-tls1_2.h
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zip mbedtls-footprint.zip "$OUTFILE" size-*.txt >/dev/null
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