3 # Measure memory usage of a minimal client using a small configuration
4 # Currently hardwired to ccm-psk and suite-b, may be expanded later
6 # Use different build options for measuring executable size and memory usage,
7 # since for memory we want debug information.
11 CONFIG_H='include/mbedtls/config.h'
15 CFLAGS_EXEC='-fno-asynchronous-unwind-tables -Wl,--gc-section -ffunction-sections -fdata-sections'
18 if [ -r $CONFIG_H ]; then :; else
19 echo "$CONFIG_H not found" >&2
23 if grep -i cmake Makefile >/dev/null; then
24 echo "Not compatible with CMake" >&2
28 if [ $( uname ) != Linux ]; then
29 echo "Only work on Linux" >&2
33 if git status | grep -F $CONFIG_H >/dev/null 2>&1; then
34 echo "config.h not clean" >&2
38 # make measurements with one configuration
39 # usage: do_config <name> <unset-list> <server-args>
48 cp configs/config-$NAME.h $CONFIG_H
49 scripts/config.pl unset MBEDTLS_SSL_SRV_C
51 for FLAG in $UNSET_LIST; do
52 scripts/config.pl unset $FLAG
55 grep -F SSL_MAX_CONTENT_LEN $CONFIG_H || echo 'SSL_MAX_CONTENT_LEN=16384'
57 printf " Executable size... "
60 CFLAGS=$CFLAGS_EXEC make OFLAGS=-Os lib >/dev/null 2>&1
62 CFLAGS=$CFLAGS_EXEC make OFLAGS=-Os ssl/$CLIENT >/dev/null
64 stat -c '%s' ssl/$CLIENT
67 printf " Peak ram usage... "
70 CFLAGS=$CFLAGS_MEM make OFLAGS=-Os lib >/dev/null 2>&1
72 CFLAGS=$CFLAGS_MEM make OFLAGS=-Os ssl/$CLIENT >/dev/null
75 ./ssl_server2 $SERVER_ARGS >/dev/null &
79 if valgrind --tool=massif --stacks=yes programs/ssl/$CLIENT >/dev/null 2>&1
83 echo "client failed" >&2
90 scripts/massif_max.pl massif.out.*
91 mv massif.out.* massif-$NAME.$$
96 CONFIG_BAK=${CONFIG_H}.bak
97 cp $CONFIG_H $CONFIG_BAK
101 printf "building server... "
104 make lib >/dev/null 2>&1
105 (cd programs && make ssl/ssl_server2) >/dev/null
106 cp programs/ssl/ssl_server2 .
110 # actual measurements
112 do_config "ccm-psk-tls1_2" \
114 "psk=000102030405060708090A0B0C0D0E0F"
116 do_config "suite-b" \
117 "MBEDTLS_BASE64_C MBEDTLS_PEM_PARSE_C MBEDTLS_CERTS_C" \
122 mv $CONFIG_BAK $CONFIG_H