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-rw-r--r--security/nss/lib/freebl/ppc-crypto.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/ppc-crypto.h b/security/nss/lib/freebl/ppc-crypto.h
new file mode 100644
index 0000000000..4d283895f2
--- /dev/null
+++ b/security/nss/lib/freebl/ppc-crypto.h
@@ -0,0 +1,31 @@
+/* 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/. */
+
+#ifndef PPC_CRYPTO_H
+#define PPC_CRYPTO_H 1
+
+#if defined(__powerpc64__) && defined(__ALTIVEC__) && \
+ !defined(NSS_DISABLE_ALTIVEC)
+#include "altivec-types.h"
+
+/* The ghash freebl test tries to use this in C++, and gcc defines conflict. */
+#ifdef __cplusplus
+#undef pixel
+#undef vector
+#undef bool
+#endif
+
+/*
+ * PPC CRYPTO requires at least gcc 8 or clang. The LE check is purely
+ * because it's only been tested on LE. If you're interested in BE,
+ * please send a patch.
+ */
+#if (defined(__clang__) || (defined(__GNUC__) && __GNUC__ >= 8)) && \
+ defined(IS_LITTLE_ENDIAN) && defined(__VSX__)
+#define USE_PPC_CRYPTO
+#endif
+
+#endif /* defined(__powerpc64__) && !defined(NSS_DISABLE_ALTIVEC) && defined(__ALTIVEC__) */
+
+#endif