| #!/bin/sh |
| |
| # Measure memory usage of a minimal client using a small configuration |
| # Currently hardwired to ccm-psk and suite-b, may be expanded later |
| # |
| # Use different build options for measuring executable size and memory usage, |
| # since for memory we want debug information. |
| # |
| # Copyright The Mbed TLS Contributors |
| # 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. |
| |
| set -eu |
| |
| CONFIG_H='include/mbedtls/config.h' |
| |
| CLIENT='mini_client' |
| |
| CFLAGS_EXEC='-fno-asynchronous-unwind-tables -Wl,--gc-section -ffunction-sections -fdata-sections' |
| CFLAGS_MEM=-g3 |
| |
| if [ -r $CONFIG_H ]; then :; else |
| echo "$CONFIG_H not found" >&2 |
| exit 1 |
| fi |
| |
| if grep -i cmake Makefile >/dev/null; then |
| echo "Not compatible with CMake" >&2 |
| exit 1 |
| fi |
| |
| if [ $( uname ) != Linux ]; then |
| echo "Only work on Linux" >&2 |
| exit 1 |
| fi |
| |
| if git status | grep -F $CONFIG_H >/dev/null 2>&1; then |
| echo "config.h not clean" >&2 |
| exit 1 |
| fi |
| |
| # make measurements with one configuration |
| # usage: do_config <name> <unset-list> <server-args> |
| do_config() |
| { |
| NAME=$1 |
| UNSET_LIST=$2 |
| SERVER_ARGS=$3 |
| |
| echo "" |
| echo "config-$NAME:" |
| cp configs/config-$NAME.h $CONFIG_H |
| scripts/config.py unset MBEDTLS_SSL_SRV_C |
| |
| for FLAG in $UNSET_LIST; do |
| scripts/config.py unset $FLAG |
| done |
| |
| grep -F SSL_MAX_CONTENT_LEN $CONFIG_H || echo 'SSL_MAX_CONTENT_LEN=16384' |
| |
| printf " Executable size... " |
| |
| make clean |
| CFLAGS=$CFLAGS_EXEC make OFLAGS=-Os lib >/dev/null 2>&1 |
| cd programs |
| CFLAGS=$CFLAGS_EXEC make OFLAGS=-Os ssl/$CLIENT >/dev/null |
| strip ssl/$CLIENT |
| stat -c '%s' ssl/$CLIENT |
| cd .. |
| |
| printf " Peak ram usage... " |
| |
| make clean |
| CFLAGS=$CFLAGS_MEM make OFLAGS=-Os lib >/dev/null 2>&1 |
| cd programs |
| CFLAGS=$CFLAGS_MEM make OFLAGS=-Os ssl/$CLIENT >/dev/null |
| cd .. |
| |
| ./ssl_server2 $SERVER_ARGS >/dev/null & |
| SRV_PID=$! |
| sleep 1; |
| |
| if valgrind --tool=massif --stacks=yes programs/ssl/$CLIENT >/dev/null 2>&1 |
| then |
| FAILED=0 |
| else |
| echo "client failed" >&2 |
| FAILED=1 |
| fi |
| |
| kill $SRV_PID |
| wait $SRV_PID |
| |
| scripts/massif_max.pl massif.out.* |
| mv massif.out.* massif-$NAME.$$ |
| } |
| |
| # preparation |
| |
| CONFIG_BAK=${CONFIG_H}.bak |
| cp $CONFIG_H $CONFIG_BAK |
| |
| rm -f massif.out.* |
| |
| printf "building server... " |
| |
| make clean |
| make lib >/dev/null 2>&1 |
| (cd programs && make ssl/ssl_server2) >/dev/null |
| cp programs/ssl/ssl_server2 . |
| |
| echo "done" |
| |
| # actual measurements |
| |
| do_config "ccm-psk-tls1_2" \ |
| "" \ |
| "psk=000102030405060708090A0B0C0D0E0F" |
| |
| do_config "suite-b" \ |
| "MBEDTLS_BASE64_C MBEDTLS_PEM_PARSE_C" \ |
| "" |
| |
| # cleanup |
| |
| mv $CONFIG_BAK $CONFIG_H |
| make clean |
| rm ssl_server2 |
| |
| exit $FAILED |