Revamp makefile

2013-04-07 00:37:06 +02:00
parent 6baf08dfe4
commit f0c89aadc6
6 changed files with 182 additions and 87 deletions
--- a/136
+++ b/136
@@ -0,0 +1,136 @@
+#!/bin/sh
+
+if test -f config.mk; then
+    exit 0
+fi
+
+if test -z "$CC"; then
+    CC=cc
+fi
+
+if test -z "$YASM"; then
+    YASM=yasm
+fi
+
+# test yasm
+$YASM -f elf64 -o /tmp/secp256k1-$$.o - <<EOF
+	BITS 64
+	GLOBAL testyasm
+	ALIGN 32
+testyasm:
+	xor r9,r9
+EOF
+if [ "$?" = 0 ]; then
+    $CC $CFLAGS -std=c99 -x c -c - -o /tmp/secp256k1-$$-2.o 2>/dev/null <<EOF
+void __attribute__ ((sysv_abi)) testyasm(void);
+int main() {
+    testyasm();
+    return 0;
+}
+EOF
+    $CC $CFLAGS -std=c99 /tmp/secp256k1-$$-2.o /tmp/secp256k1-$$.o -o /dev/null 2>/dev/null
+    if [ "$?" = 0 ]; then
+        HAVE_YASM=1
+    fi
+    rm -rf /tmp/secp256k1-$$-2.o /tmp/secp256k1-$$.o
+fi
+
+# test openssl
+HAVE_OPENSSL=0
+$CC $CFLAGS -std=c99 -x c - -o /dev/null -lcrypto 2>/dev/null <<EOF
+#include <openssl/bn.h>
+int main() {
+    BN_CTX *ctx = BN_CTX_new();
+    BN_CTX_free(ctx);
+    return 0;
+}
+EOF
+if [ "$?" = 0 ]; then
+    HAVE_OPENSSL=1
+fi
+
+# test gmp
+HAVE_GMP=0
+$CC $CFLAGS -std=c99 -x c - -o /dev/null -lgmp 2>/dev/null <<EOF
+#include <gmp.h>
+int main() {
+    mpz_t n;
+    mpz_init(n);
+    mpz_clear(n);
+    return 0;
+}
+EOF
+if [ "$?" = 0 ]; then
+    HAVE_GMP=1
+fi
+
+# test __int128
+HAVE_INT128=0
+$CC $CFLAGS -std=c99 -x c - -o /dev/null 2>/dev/null <<EOF
+#include <stdint.h>
+int main() {
+    __int128 x = 0;
+    return 0;
+}
+EOF
+if [ "$?" = 0 ]; then
+    HAVE_INT128=1
+fi
+
+for arg in "$@"; do
+    case "$arg" in
+        --no-yasm)
+            HAVE_YASM=0
+            ;;
+        --no-gmp)
+            HAVE_GMP=0
+            ;;
+        --no-openssl)
+            HAVE_OPENSSL=0
+            ;;
+    esac
+done
+
+LINK_OPENSSL=0
+LINK_GMP=0
+USE_ASM=0
+
+# select field implementation
+if [ "$HAVE_YASM" = "1" ]; then
+    CFLAGS_FIELD="-DUSE_FIELD_5X52 -DUSE_FIELD_5X52_ASM"
+    USE_ASM=1
+elif [ "$HAVE_INT128" = "1" ]; then
+    CFLAGS_FIELD="-DUSE_FIELD_5X52 -DUSE_FIELD_5X52_INT128"
+elif [ "$HAVE_GMP" = "1" ]; then
+    CFLAGS_FIELD="-DUSE_FIELD_GMP"
+    LINK_GMP=1
+else
+    CFLAGS_FIELD="-DUSE_FIELD_10X26"
+fi
+
+# select num implementation
+if [ "$HAVE_GMP" = "1" ]; then
+    CFLAGS_NUM="-DUSE_NUM_GMP -DUSE_FIELD_INV_NUM"
+    LINK_GMP=1
+elif [ "$HAVE_OPENSSL" =  "1" ]; then
+    CFLAGS_NUM="-DUSE_NUM_OPENSSL -DUSE_FIELD_INV_BUILTIN"
+    LINK_OPENSSL=1
+else
+    echo "No usable num implementation found" >&2
+    exit 1
+fi
+
+CFLAGS_EXTRA="$CFLAGS_FIELD $CFLAGS_NUM"
+LDFLAGS_EXTRA=""
+if [ "$LINK_GMP" = "1" ]; then
+    LDFLAGS_EXTRA="-lgmp"
+fi
+if [ "$LINK_OPENSSL" = "1" ]; then
+    LDFLAGS_EXTRA="-lcrypto"
+fi
+
+echo "CC=$CC" > config.mk
+echo "YASM=$YASM" >>config.mk
+echo "CFLAGS_EXTRA=$CFLAGS_EXTRA" >> config.mk
+echo "LDFLAGS_EXTRA=$LDFLAGS_EXTRA" >> config.mk
+echo "USE_ASM=$USE_ASM" >>config.mk