xref: /aosp_15_r20/external/boringssl/include/openssl/arm_arch.h (revision 8fb009dc861624b67b6cdb62ea21f0f22d0c584b)

/* ====================================================================
 * Copyright (c) 1998-2011 The OpenSSL Project.  All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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 *
 * This product includes cryptographic software written by Eric Young
 * ([email protected]).  This product includes software written by Tim
 * Hudson ([email protected]). */

#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