1 files changed, 66 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/crypto_primitives.h b/security/nss/lib/freebl/crypto_primitives.h
new file mode 100644
index 0000000000..86a6927ad6
--- /dev/null
+++ b/security/nss/lib/freebl/crypto_primitives.h
@@ -0,0 +1,66 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* This file holds useful functions and macros for crypto code. */
+
+#ifdef FREEBL_NO_DEPEND
+#include "stubs.h"
+#endif
+
+#include <stdlib.h>
+#include "prtypes.h"
+
+/* For non-clang platform */
+#ifndef __has_builtin
+#define __has_builtin(x) 0
+#endif
+
+/* Unfortunately this isn't always set when it should be. */
+#if defined(HAVE_LONG_LONG)
+
+/*
+ * ROTR64/ROTL64(x, n): rotate a 64-bit integer x by n bites to the right/left.
+ */
+#if defined(_MSC_VER)
+#pragma intrinsic(_rotr64, _rotl64)
+#define ROTR64(x, n) _rotr64((x), (n))
+#define ROTL64(x, n) _rotl64((x), (n))
+#else
+#define ROTR64(x, n) (((x) >> (n)) | ((x) << (64 - (n))))
+#define ROTL64(x, n) (((x) << (n)) | ((x) >> (64 - (n))))
+#endif
+
+/*
+ * FREEBL_HTONLL(x): swap bytes in a 64-bit integer.
+ */
+#if defined(IS_LITTLE_ENDIAN)
+#if defined(_MSC_VER)
+
+#pragma intrinsic(_byteswap_uint64)
+#define FREEBL_HTONLL(x) _byteswap_uint64(x)
+
+/* gcc doesn't have __has_builtin, but it does have __builtin_bswap64 */
+#elif __has_builtin(__builtin_bswap64) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
+
+#define FREEBL_HTONLL(x) __builtin_bswap64(x)
+
+#elif defined(__GNUC__) && (defined(__x86_64__) || defined(__x86_64))
+
+PRUint64 swap8b(PRUint64 value);
+#define FREEBL_HTONLL(x) swap8b(x)
+
+#else
+
+#define SHA_MASK16 0x0000FFFF0000FFFFULL
+#define SHA_MASK8 0x00FF00FF00FF00FFULL
+PRUint64 swap8b(PRUint64 x);
+#define FREEBL_HTONLL(x) swap8b(x)
+
+#endif /* _MSC_VER */
+
+#else /* IS_LITTLE_ENDIAN */
+#define FREEBL_HTONLL(x) (x)
+#endif
+
+#endif /* HAVE_LONG_LONG */