include/openssl/arm_arch.h

// Copyright 2011-2016 The OpenSSL Project Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef OPENSSL_HEADER_ARM_ARCH_H
#define OPENSSL_HEADER_ARM_ARCH_H

#include <openssl/target.h>

// arm_arch.h contains symbols used by ARM assembly, and the C code that calls
// it. It is included as a public header to simplify the build, but is not
// intended for external use.

#if defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)

// ARMV7_NEON is true when a NEON unit is present in the current CPU.
#define ARMV7_NEON (1 << 0)

// ARMV8_AES indicates support for hardware AES instructions.
#define ARMV8_AES (1 << 2)

// ARMV8_SHA1 indicates support for hardware SHA-1 instructions.
#define ARMV8_SHA1 (1 << 3)

// ARMV8_SHA256 indicates support for hardware SHA-256 instructions.
#define ARMV8_SHA256 (1 << 4)

// ARMV8_PMULL indicates support for carryless multiplication.
#define ARMV8_PMULL (1 << 5)

// ARMV8_SHA512 indicates support for hardware SHA-512 instructions.
#define ARMV8_SHA512 (1 << 6)

#endif  // ARM || AARCH64

#endif  // OPENSSL_HEADER_ARM_ARCH_H