mbedtls/scripts/memory.sh
Bence Szépkúti b7246ad938 Add copyright dates to all scripts
To find any files with a missing copyright declaration, use the following script:

# ========================
#!/bin/sh

# Find files with copyright declarations, and list their file extensions
exts=$(grep -Ril --exclude-dir .git 'Copyright.*Arm' | sed '
  s/.*\./-name "*./
  s/$/"/
' | sort -u | sed -n '
  :l
    N
    $!bl
  s/\n/ -o /gp
')

# Find files with file extensions that ususally include copyright extensions,
# but don't include a copyright declaration themselves.
eval "find -path './.git' -prune -o\
  ! -path './tests/data_files/format_pkcs12.fmt'\
  ! -path './programs/psa/psa_constant_names_generated.c'\
  '(' $exts ')' -print" | xargs grep -Li 'Copyright.*Arm'
# ========================

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-06-08 17:26:24 +02:00

131 lines
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#!/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 (C) 2014-2015, Arm Limited, All Rights Reserved
#
# This file is part of Mbed TLS (https://tls.mbed.org)
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.pl unset MBEDTLS_SSL_SRV_C
for FLAG in $UNSET_LIST; do
scripts/config.pl 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 MBEDTLS_CERTS_C" \
""
# cleanup
mv $CONFIG_BAK $CONFIG_H
make clean
rm ssl_server2
exit $FAILED