75 lines
1.7 KiB
Bash
75 lines
1.7 KiB
Bash
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#!/bin/sh
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# Measure heap usage (and performance) of ECC operations with various values of
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# the relevant tunable compile-time parameters.
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#
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# Usage (preferably on a 32-bit platform):
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# cmake -D CMAKE_BUILD_TYPE=Release .
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# scripts/ecc-heap.sh | tee ecc-heap.log
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set -eu
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CONFIG_H='include/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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exit 1
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fi
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if grep -i cmake Makefile >/dev/null; then :; else
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echo "Needs Cmake" >&2
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exit 1
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fi
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if git status | grep -F $CONFIG_H >/dev/null 2>&1; then
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echo "config.h not clean" >&2
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exit 1
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fi
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CONFIG_BAK=${CONFIG_H}.bak
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cp $CONFIG_H $CONFIG_BAK
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cat << EOF >$CONFIG_H
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#define MBEDTLS_PLATFORM_C
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#define MBEDTLS_PLATFORM_MEMORY
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#define MBEDTLS_MEMORY_BUFFER_ALLOC_C
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#define MBEDTLS_MEMORY_DEBUG
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#define MBEDTLS_TIMING_C
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#define MBEDTLS_BIGNUM_C
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#define MBEDTLS_ECP_C
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#define MBEDTLS_ASN1_PARSE_C
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#define MBEDTLS_ASN1_WRITE_C
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#define MBEDTLS_ECDSA_C
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#define MBEDTLS_ECDH_C
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#define MBEDTLS_ECP_DP_SECP192R1_ENABLED
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#define MBEDTLS_ECP_DP_SECP224R1_ENABLED
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#define MBEDTLS_ECP_DP_SECP256R1_ENABLED
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#define MBEDTLS_ECP_DP_SECP384R1_ENABLED
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#define MBEDTLS_ECP_DP_SECP521R1_ENABLED
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#define MBEDTLS_ECP_DP_CURVE25519_ENABLED
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#include "check_config.h"
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//#define MBEDTLS_ECP_WINDOW_SIZE 6
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//#define MBEDTLS_ECP_FIXED_POINT_OPTIM 1
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EOF
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for F in 0 1; do
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for W in 2 3 4 5 6; do
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scripts/config.pl set MBEDTLS_ECP_WINDOW_SIZE $W
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scripts/config.pl set MBEDTLS_ECP_FIXED_POINT_OPTIM $F
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make benchmark >/dev/null 2>&1
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echo "fixed point optim = $F, max window size = $W"
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echo "--------------------------------------------"
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programs/test/benchmark
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done
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done
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# cleanup
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mv $CONFIG_BAK $CONFIG_H
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make clean
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