From f63e122a2cff8d0e20288b897c449a42cdf84897 Mon Sep 17 00:00:00 2001
From: MITSUNARI Shigeo <herumi@nifty.com>
Date: Wed, 5 Dec 2018 11:59:06 +0900
Subject: -tags options is necessary fo cgo

---
 ffi/go/bls/bls.go      | 10 +++++++---
 ffi/go/bls/bls_test.go |  6 ++++--
 ffi/go/bls/mcl.go      | 15 ++++++++++++++-
 3 files changed, 25 insertions(+), 6 deletions(-)

(limited to 'ffi/go')

diff --git a/ffi/go/bls/bls.go b/ffi/go/bls/bls.go
index a7bbeb3..cb7074c 100644
--- a/ffi/go/bls/bls.go
+++ b/ffi/go/bls/bls.go
@@ -2,9 +2,13 @@ package bls
 
 /*
 #cgo CFLAGS:-I../../../include -I../../../../mcl/include/
-#cgo LDFLAGS:-L../../../lib
-#cgo CFLAGS:-DMCLBN_FP_UNIT_SIZE=6
-#cgo LDFLAGS:-lbls384_dy -lcrypto -lgmp -lgmpxx -lstdc++
+#cgo bn256 CFLAGS:-DMCLBN_FP_UNIT_SIZE=4
+#cgo bn256 LDFLAGS:-lbls256_dy
+#cgo bn384 CFLAGS:-DMCLBN_FP_UNIT_SIZE=6
+#cgo bn384 LDFLAGS:-lbls384_dy
+#cgo bn384_256 CFLAGS:-DMCLBN_FP_UNIT_SIZE=6 -DMCLBN_FR_UNIT_SIZE=4
+#cgo bn384_256 LDFLAGS:-lbls384_256_dy
+#cgo LDFLAGS:-L../../../lib -lcrypto -lgmp -lgmpxx -lstdc++
 #include <bls/bls.h>
 */
 import "C"
diff --git a/ffi/go/bls/bls_test.go b/ffi/go/bls/bls_test.go
index adc2806..bc94703 100644
--- a/ffi/go/bls/bls_test.go
+++ b/ffi/go/bls/bls_test.go
@@ -380,8 +380,10 @@ func TestMain(t *testing.T) {
 	t.Log("CurveFp254BNb")
 	test(t, CurveFp254BNb)
 	if GetMaxOpUnitSize() == 6 {
-		t.Log("CurveFp382_1")
-		test(t, CurveFp382_1)
+		if GetFrUnitSize() == 6 {
+			t.Log("CurveFp382_1")
+			test(t, CurveFp382_1)
+		}
 		t.Log("BLS12_381")
 		test(t, BLS12_381)
 	}
diff --git a/ffi/go/bls/mcl.go b/ffi/go/bls/mcl.go
index 9771201..776536f 100644
--- a/ffi/go/bls/mcl.go
+++ b/ffi/go/bls/mcl.go
@@ -1,7 +1,9 @@
 package bls
 
 /*
-#cgo CFLAGS:-DMCLBN_FP_UNIT_SIZE=6
+#cgo bn256 CFLAGS:-DMCLBN_FP_UNIT_SIZE=4
+#cgo bn384 CFLAGS:-DMCLBN_FP_UNIT_SIZE=6
+#cgo bn384_256 CFLAGS:-DMCLBN_FP_UNIT_SIZE=6 -DMCLBN_FR_UNIT_SIZE=4
 #include <mcl/bn.h>
 */
 import "C"
@@ -23,6 +25,17 @@ const BLS12_381 = C.MCL_BLS12_381
 // IoSerializeHexStr
 const IoSerializeHexStr = C.MCLBN_IO_SERIALIZE_HEX_STR
 
+// GetFrUnitSize() --
+func GetFrUnitSize() int {
+	return int(C.MCLBN_FR_UNIT_SIZE)
+}
+
+// GetFpUnitSize() --
+// same as GetMaxOpUnitSize()
+func GetFpUnitSize() int {
+	return int(C.MCLBN_FP_UNIT_SIZE)
+}
+
 // GetMaxOpUnitSize --
 func GetMaxOpUnitSize() int {
 	return int(C.MCLBN_FP_UNIT_SIZE)
-- 
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