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137 lines
2.6 KiB
137 lines
2.6 KiB
#!/bin/sh
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if test -f config.mk; then
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exit 0
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fi
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if test -z "$CC"; then
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CC=cc
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fi
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if test -z "$YASM"; then
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YASM=yasm
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fi
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# test yasm
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$YASM -f elf64 -o /tmp/secp256k1-$$.o - <<EOF
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BITS 64
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GLOBAL testyasm
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ALIGN 32
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testyasm:
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xor r9,r9
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EOF
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if [ "$?" = 0 ]; then
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$CC $CFLAGS -std=c99 -x c -c - -o /tmp/secp256k1-$$-2.o 2>/dev/null <<EOF
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void __attribute__ ((sysv_abi)) testyasm(void);
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int main() {
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testyasm();
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return 0;
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}
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EOF
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$CC $CFLAGS -std=c99 /tmp/secp256k1-$$-2.o /tmp/secp256k1-$$.o -o /dev/null 2>/dev/null
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if [ "$?" = 0 ]; then
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HAVE_YASM=1
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fi
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rm -rf /tmp/secp256k1-$$-2.o /tmp/secp256k1-$$.o
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fi
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# test openssl
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HAVE_OPENSSL=0
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$CC $CFLAGS -std=c99 -x c - -o /dev/null -lcrypto 2>/dev/null <<EOF
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#include <openssl/bn.h>
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int main() {
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BN_CTX *ctx = BN_CTX_new();
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BN_CTX_free(ctx);
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return 0;
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}
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EOF
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if [ "$?" = 0 ]; then
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HAVE_OPENSSL=1
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fi
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# test gmp
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HAVE_GMP=0
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$CC $CFLAGS -std=c99 -x c - -o /dev/null -lgmp 2>/dev/null <<EOF
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#include <gmp.h>
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int main() {
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mpz_t n;
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mpz_init(n);
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mpz_clear(n);
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return 0;
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}
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EOF
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if [ "$?" = 0 ]; then
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HAVE_GMP=1
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fi
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# test __int128
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HAVE_INT128=0
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$CC $CFLAGS -std=c99 -x c - -o /dev/null 2>/dev/null <<EOF
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#include <stdint.h>
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int main() {
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__int128 x = 0;
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return 0;
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}
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EOF
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if [ "$?" = 0 ]; then
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HAVE_INT128=1
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fi
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for arg in "$@"; do
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case "$arg" in
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--no-yasm)
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HAVE_YASM=0
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;;
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--no-gmp)
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HAVE_GMP=0
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;;
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--no-openssl)
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HAVE_OPENSSL=0
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;;
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esac
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done
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LINK_OPENSSL=0
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LINK_GMP=0
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USE_ASM=0
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# select field implementation
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if [ "$HAVE_YASM" = "1" ]; then
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CFLAGS_FIELD="-DUSE_FIELD_5X52 -DUSE_FIELD_5X52_ASM"
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USE_ASM=1
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elif [ "$HAVE_INT128" = "1" ]; then
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CFLAGS_FIELD="-DUSE_FIELD_5X52 -DUSE_FIELD_5X52_INT128"
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elif [ "$HAVE_GMP" = "1" ]; then
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CFLAGS_FIELD="-DUSE_FIELD_GMP"
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LINK_GMP=1
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else
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CFLAGS_FIELD="-DUSE_FIELD_10X26"
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fi
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# select num implementation
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if [ "$HAVE_GMP" = "1" ]; then
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CFLAGS_NUM="-DUSE_NUM_GMP -DUSE_FIELD_INV_NUM"
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LINK_GMP=1
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elif [ "$HAVE_OPENSSL" = "1" ]; then
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CFLAGS_NUM="-DUSE_NUM_OPENSSL -DUSE_FIELD_INV_BUILTIN"
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LINK_OPENSSL=1
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else
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echo "No usable num implementation found" >&2
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exit 1
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fi
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CFLAGS_EXTRA="$CFLAGS_FIELD $CFLAGS_NUM"
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LDFLAGS_EXTRA=""
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if [ "$LINK_GMP" = "1" ]; then
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LDFLAGS_EXTRA="-lgmp"
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fi
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if [ "$LINK_OPENSSL" = "1" ]; then
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LDFLAGS_EXTRA="-lcrypto"
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fi
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echo "CC=$CC" > config.mk
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echo "YASM=$YASM" >>config.mk
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echo "CFLAGS_EXTRA=$CFLAGS_EXTRA" >> config.mk
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echo "LDFLAGS_EXTRA=$LDFLAGS_EXTRA" >> config.mk
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echo "USE_ASM=$USE_ASM" >>config.mk
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