Imported Upstream version 4.8.0.309

Former-commit-id: 5f9c6ae75f295e057a7d2971f3a6df4656fa8850

external/boringssl/crypto/cpu-arm.c

@@ -0,0 +1,38 @@
+/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl/cpu.h>
+
+#if (defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)) && \
+    !defined(OPENSSL_STATIC_ARMCAP)
+
+#include <openssl/arm_arch.h>
+
+
+extern uint32_t OPENSSL_armcap_P;
+
+char CRYPTO_is_NEON_capable_at_runtime(void) {
+  return (OPENSSL_armcap_P & ARMV7_NEON) != 0;
+}
+
+int CRYPTO_is_ARMv8_AES_capable(void) {
+  return (OPENSSL_armcap_P & ARMV8_AES) != 0;
+}
+
+int CRYPTO_is_ARMv8_PMULL_capable(void) {
+  return (OPENSSL_armcap_P & ARMV8_PMULL) != 0;
+}
+
+#endif  /* (defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)) &&
+           !defined(OPENSSL_STATIC_ARMCAP) */