1#!/bin/sh 2 3# Measure heap usage (and performance) of ECC operations with various values of 4# the relevant tunable compile-time parameters. 5# 6# Usage (preferably on a 32-bit platform): 7# cmake -D CMAKE_BUILD_TYPE=Release . 8# scripts/ecc-heap.sh | tee ecc-heap.log 9 10set -eu 11 12CONFIG_H='include/mbedtls/config.h' 13 14if [ -r $CONFIG_H ]; then :; else 15 echo "$CONFIG_H not found" >&2 16 exit 1 17fi 18 19if grep -i cmake Makefile >/dev/null; then :; else 20 echo "Needs Cmake" >&2 21 exit 1 22fi 23 24if git status | grep -F $CONFIG_H >/dev/null 2>&1; then 25 echo "config.h not clean" >&2 26 exit 1 27fi 28 29CONFIG_BAK=${CONFIG_H}.bak 30cp $CONFIG_H $CONFIG_BAK 31 32cat << EOF >$CONFIG_H 33#define MBEDTLS_PLATFORM_C 34#define MBEDTLS_PLATFORM_MEMORY 35#define MBEDTLS_MEMORY_BUFFER_ALLOC_C 36#define MBEDTLS_MEMORY_DEBUG 37 38#define MBEDTLS_TIMING_C 39 40#define MBEDTLS_BIGNUM_C 41#define MBEDTLS_ECP_C 42#define MBEDTLS_ASN1_PARSE_C 43#define MBEDTLS_ASN1_WRITE_C 44#define MBEDTLS_ECDSA_C 45#define MBEDTLS_ECDH_C 46 47#define MBEDTLS_ECP_DP_SECP192R1_ENABLED 48#define MBEDTLS_ECP_DP_SECP224R1_ENABLED 49#define MBEDTLS_ECP_DP_SECP256R1_ENABLED 50#define MBEDTLS_ECP_DP_SECP384R1_ENABLED 51#define MBEDTLS_ECP_DP_SECP521R1_ENABLED 52#define MBEDTLS_ECP_DP_CURVE25519_ENABLED 53 54#include "check_config.h" 55 56//#define MBEDTLS_ECP_WINDOW_SIZE 6 57//#define MBEDTLS_ECP_FIXED_POINT_OPTIM 1 58EOF 59 60for F in 0 1; do 61 for W in 2 3 4 5 6; do 62 scripts/config.pl set MBEDTLS_ECP_WINDOW_SIZE $W 63 scripts/config.pl set MBEDTLS_ECP_FIXED_POINT_OPTIM $F 64 make benchmark >/dev/null 2>&1 65 echo "fixed point optim = $F, max window size = $W" 66 echo "--------------------------------------------" 67 programs/test/benchmark 68 done 69done 70 71# cleanup 72 73mv $CONFIG_BAK $CONFIG_H 74make clean 75