From a5500721dbb1dbf18dbeda7766c70b1ac74c7cd3 Mon Sep 17 00:00:00 2001
From: MarkusTeufelberger <markusteufelberger@gmail.com>
Date: Sat, 10 Dec 2016 20:05:09 +0100
Subject: [PATCH] Don't consider function for ASAN

ge25519_scalarmult_base_choose_niels leads to errors (#1668) when compiled with address sanitizer.
---
 src/ed25519-donna/ed25519-donna-64bit-x86.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/ed25519-donna/ed25519-donna-64bit-x86.h b/src/ed25519-donna/ed25519-donna-64bit-x86.h
index 30bd472762..7c844ecda4 100644
--- a/src/ed25519-donna/ed25519-donna-64bit-x86.h
+++ b/src/ed25519-donna/ed25519-donna-64bit-x86.h
@@ -2,7 +2,13 @@
 
 #define HAVE_GE25519_SCALARMULT_BASE_CHOOSE_NIELS
 
-DONNA_NOINLINE static void
+#if defined(__clang__) || defined (__GNUC__)
+# define ATTRIBUTE_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address))
+#else
+# define ATTRIBUTE_NO_SANITIZE_ADDRESS
+#endif
+
+ATTRIBUTE_NO_SANITIZE_ADDRESS DONNA_NOINLINE static void
 ge25519_scalarmult_base_choose_niels(ge25519_niels *t, const uint8_t table[256][96], uint32_t pos, signed char b) {
 	int64_t breg = (int64_t)b;
 	uint64_t sign = (uint64_t)breg >> 63;